Update NuGet packages

.docs/Docker.md

@@ -10,7 +10,7 @@ Docker distribution of DiscordChatExporter provides a way to run the app in a vi
 This will download the [Docker image from the registry](https://hub.docker.com/r/tyrrrz/discordchatexporter) to your computer. You can run this command again to update when a new version is released.
 
 ```console
-docker pull tyrrrz/discordchatexporter:stable
+$ docker pull tyrrrz/discordchatexporter:stable
 ```
 
 Note the `:stable` tag. DiscordChatExporter images are tagged according to the following patterns:
@@ -26,19 +26,19 @@ You can see all available tags [here](https://hub.docker.com/r/tyrrrz/discordcha
 To run the CLI in Docker and render help text:
 
 ```console
-docker run --rm tyrrrz/discordchatexporter:stable
+$ docker run --rm tyrrrz/discordchatexporter:stable
 ```
 
 To export a channel:
 
 ```console
-docker run --rm -v /path/on/machine:/out tyrrrz/discordchatexporter:stable export -t TOKEN -c CHANNELID
+$ docker run --rm -v /path/on/machine:/out tyrrrz/discordchatexporter:stable export -t TOKEN -c CHANNELID
 ```
 
 If you want colored output and real-time progress reporting, pass the `-it` (interactive + pseudo-terminal) option:
 
 ```console
-docker run --rm -it -v /path/on/machine:/out tyrrrz/discordchatexporter:stable export -t TOKEN -c CHANNELID
+$ docker run --rm -it -v /path/on/machine:/out tyrrrz/discordchatexporter:stable export -t TOKEN -c CHANNELID
 ```
 
 The `-v /path/on/machine:/out` option instructs Docker to bind the `/out` directory inside the container to a path on your host machine. Replace `/path/on/machine` with the directory you want the files to be saved at.
@@ -47,7 +47,7 @@ The `-v /path/on/machine:/out` option instructs Docker to bind the `/out` direct
 > If you are running SELinux, you will need to add the `:z` option after `/out`, e.g.:
 >
 > ```console
-> docker run --rm -v /path/on/machine:/out:z tyrrrz/discordchatexporter:stable export -t TOKEN -c CHANNELID
+> $ docker run --rm -v /path/on/machine:/out:z tyrrrz/discordchatexporter:stable export -t TOKEN -c CHANNELID
 > ```
 >
 > For more information, refer to the [Docker docs SELinux labels for bind mounts page](https://docs.docker.com/storage/bind-mounts/#configure-the-selinux-label).
@@ -61,6 +61,17 @@ For more information, please refer to the [Dockerfile](https://github.com/Tyrrrz
 
 To get your Token and Channel IDs, please refer to [this page](Token-and-IDs.md).
 
+## Unix permissions issues
+
+This image was designed with a user running as uid:gid of 1000:1000.
+
+If your current user has different IDs, and you want to generate files directly editable for your user, you might want to run the container like this:
+
+```console
+$ mkdir data # or chown -R $(id -u):$(id -g) data
+$ docker run -it --rm -v $PWD/data:/out --user $(id -u):$(id -g) tyrrrz/discordchatexporter:stable export -t TOKEN -g CHANNELID
+```
+
 ## Environment variables
 
 DiscordChatExpoter CLI accepts the `DISCORD_TOKEN` environment variable as a fallback for the `--token` option. You can set this variable either with the `--env` Docker option or with a combination of the `--env-file` Docker option and a `.env` file.

.docs/Dotnet.md

@@ -43,12 +43,8 @@ For other distros, please check the _'Install on Linux'_ menu on the left of [th
 You can check which version of **.NET Runtime** is installed by running the following command in a terminal:
 
 ```console
-dotnet --info
-```
+$ dotnet --info
 
-If the **.NET Runtime** is correctly installed, the command will output something similar to the following:
-
-```console
 .NET runtimes installed:
   Microsoft.NETCore.App 7.0.x [C:\path\to\dotnet\shared\Microsoft.NETCore.App]
   Microsoft.WindowsDesktop.App 7.0.x [C:\path\to\dotnet\shared\Microsoft.WindowsDesktop.App]

.docs/Getting-started.md

@@ -15,12 +15,9 @@ The information presented on this page is valid for **all** platforms.
 **DCE** has two different versions:
 
 - **Graphical User Interface** (**GUI**) - it's the preferred version for newcomers as it is easy to use.
-  You can get it by [downloading](https://github.com/Tyrrrz/DiscordChatExporter/releases/latest) the `DiscordChatExporter.zip` file.
+  You can get it by [downloading](https://github.com/Tyrrrz/DiscordChatExporter/releases/latest) the `DiscordChatExporter.*.zip` file.
 - **Command-line Interface** (**CLI**) - offers greater flexibility and more features for advanced users, such as export scheduling, ID lists, and more specific date ranges.
-  You can get it by [downloading](https://github.com/Tyrrrz/DiscordChatExporter/releases/latest) the `DiscordChatExporter.CLI.zip` file.
-
-If you're not comfortable with **Windows'** Command-line (cmd), please choose the GUI.
-[**macOS**](MacOS.md), [**Linux**](Linux.md) and [**Docker**](Docker.md) users can only use the CLI version.
+  You can get it by [downloading](https://github.com/Tyrrrz/DiscordChatExporter/releases/latest) the `DiscordChatExporter.Cli.*.zip` file.
 
 There are dedicated guides for each version:
 

.docs/Linux.md

@@ -1,26 +0,0 @@
-# Linux usage instructions
-
-## Installing .NET Runtime
-
-Please follow the [instructions provided here](Dotnet.md).
-
-## Downloading and using DiscordChatExporter.Cli
-
-1. Download [DiscordChatExporter.CLI.zip](https://github.com/Tyrrrz/DiscordChatExporter/releases/latest) and extract it to a folder.
-2. Open Terminal.
-3. `cd` into the extracted folder. You can do this in Terminal by typing `cd`, then press the SPACE key, drag and drop the extracted folder into the Terminal window, and press the ENTER key.
-4. Replace `TOKEN` and `CHANNEL`, then execute this command to export:
-
-```console
-dotnet DiscordChatExporter.Cli.dll export -t TOKEN -c CHANNEL
-```
-
-If the above command throws a "Permission denied" error, execute this command to fix the permissions:
-
-```console
-chmod 644 *.dll DiscordChatExporter.*
-```
-
-> [How to get Token and Channel IDs](Token-and-IDs.md).
-
-There's much more you can do with DCE.CLI! Read the [CLI explained](Using-the-CLI.md) page to get started.

.docs/MacOS.md

@@ -1,22 +0,0 @@
-# macOS usage instructions
-
-![Might look different depending on your macOS version](https://i.imgur.com/gA8jFjJ.png)
-
-## Installing .NET Runtime
-
-Please follow the [instructions provided here](Dotnet.md).
-
-## Downloading and using DiscordChatExporter.Cli
-
-1. Download [DiscordChatExporter.CLI.zip](https://github.com/Tyrrrz/DiscordChatExporter/releases/latest) and extract it to a folder.
-2. Search for `Terminal.app` in Spotlight (⌘+SPACE), then open it.
-3. In the Terminal window, type `cd` , press the SPACE key, then drag and drop the extracted folder into the window, then press the RETURN key.
-4. Execute the following command to export, replacing `TOKEN` and `CHANNEL` with your own values:
-
-```console
-dotnet DiscordChatExporter.Cli.dll export -t TOKEN -c CHANNEL
-```
-
-> [How to get Token and Channel IDs](Token-and-IDs.md).
-
-There's much more you can do with DCE.CLI! Read the [CLI explained](Using-the-CLI.md) page to get started.

.docs/Message-filters.md

@@ -89,17 +89,17 @@ from:96\-LB
 In most cases, you will need to enclose your filter in quotes (`"`) to escape characters that may have special meaning in your shell:
 
 ```console
-DiscordChatExporter.Cli export [...] --filter "from:Tyrrrz has:image"
+$ ./DiscordChatExporter.Cli export [...] --filter "from:Tyrrrz has:image"
 ```
 
 If you need to include quotes inside the filter itself as well, use single quotes (`'`) for those instead:
 
 ```console
-DiscordChatExporter.Cli export [...] --filter "from:Tyrrrz 'hello world'"
+$ ./DiscordChatExporter.Cli export [...] --filter "from:Tyrrrz 'hello world'"
 ```
 
 Additionally, negated filters (those that start with `-`) may cause parsing issues even when enclosed in quotes. To avoid this, use the tilde (`~`) character instead of the dash (`-`):
 
 ```console
-DiscordChatExporter.Cli export [...] --filter ~from:Tyrrrz
+$ ./DiscordChatExporter.Cli export [...] --filter ~from:Tyrrrz
 ```

.docs/Readme.md

@@ -2,8 +2,7 @@
 
 ## Installation & Usage
 
-- [Get .NET Core Runtime](Dotnet.md) (Required for CLI; Installed automatically for GUI; Not required in Docker)
-- [Windows](Getting-started.md#gui-or-cli) | [macOS](MacOS.md) | [Linux](Linux.md) | [Docker](Docker.md)
+- [Get .NET Runtime](Dotnet.md)
 - Getting started:
   - [Using the GUI](Using-the-GUI.md)
   - [Using the CLI](Using-the-CLI.md)

.docs/Scheduling-Linux.md

@@ -1,6 +1,6 @@
 # Scheduling exports with Cron
 
-Make sure you already have **DiscordChatExporter.CLI** and **.NET Core** properly installed ([instructions here](Linux.md)).
+Make sure you already have **DiscordChatExporter.CLI** downloaded and **.NET Runtime** installed.
 
 ## Creating the script
 
@@ -45,7 +45,7 @@ fi
 cd $DLLFOLDER || exit 1
 
 # This will export your chat
-dotnet DiscordChatExporter.Cli.dll export -t $TOKEN -c $CHANNELID -f $EXPORTFORMAT -o $FILENAME.tmp
+./DiscordChatExporter.Cli export -t $TOKEN -c $CHANNELID -f $EXPORTFORMAT -o $FILENAME.tmp
 
 # This sets the current time to a variable
 CURRENTTIME=$(date +"%Y-%m-%d-%H-%M-%S")

.docs/Scheduling-MacOS.md

@@ -1,8 +1,6 @@
 # Scheduling exports on macOS
 
-Scheduling on macOS is a bit tricky, but it should work if you follow the instructions accordingly.
-
-Make sure you already have **DiscordChatExporter.CLI** and **.NET Core** properly installed ([instructions here](MacOS.md)).
+Make sure you already have **DiscordChatExporter.CLI** downloaded and **.NET Runtime** installed.
 
 ## Creating the script
 
@@ -51,7 +49,7 @@ fi
 cd $DLLFOLDER || exit 1
 
 # This will export your chat
-dotnet DiscordChatExporter.Cli.dll export -t $TOKEN -c $CHANNELID -f $EXPORTFORMAT -o $FILENAME.tmp
+./DiscordChatExporter.Cli export -t $TOKEN -c $CHANNELID -f $EXPORTFORMAT -o $FILENAME.tmp
 
 # This sets the current time to a variable
 CURRENTTIME=$(date +"%Y-%m-%d-%H-%M-%S")

.docs/Scheduling-Windows.md

@@ -1,6 +1,7 @@
 # Scheduling exports on Windows
 
 We'll be using [DiscordChatExporter CLI](https://github.com/Tyrrrz/DiscordChatExporter/releases/latest), PowerShell, and Task Scheduler.
+Make sure you already have **DiscordChatExporter.CLI** downloaded and **.NET Runtime** installed.
 
 ## Creating the script
 
@@ -19,7 +20,7 @@ $EXPORTFORMAT = "formathere"
 
 cd $EXEPATH
 
-.\DiscordChatExporter.Cli.exe export -t $TOKEN -c $CHANNEL -f $EXPORTFORMAT -o "$FILENAME.tmp"
+./DiscordChatExporter.Cli export -t $TOKEN -c $CHANNEL -f $EXPORTFORMAT -o "$FILENAME.tmp"
 
 $Date = Get-Date -Format "yyyy-MM-dd-HH-mm"
 

.docs/Token-and-IDs.md

@@ -25,7 +25,7 @@ Prerequisite step: Navigate to [discord.com](https://discord.com) and login.
 
 3. Type
 
-    ```console
+    ```js
     (webpackChunkdiscord_app.push([[''],{},e=>{m=[];for(let c in e.c)m.push(e.c[c])}]),m).find(m=>m?.exports?.default?.getToken!==void 0).exports.default.getToken()
     ```
 
@@ -118,7 +118,7 @@ Prerequisite step: Navigate to [discord.com](https://discord.com) and login.
 
 1. Type
 
-    ```console
+    ```js
     (webpackChunkdiscord_app.push([[''],{},e=>{m=[];for(let c in e.c)m.push(e.c[c])}]),m).find(m=>m?.exports?.default?.getToken!==void 0).exports.default.getToken()
     ```
 

.docs/Troubleshooting.md

@@ -70,14 +70,7 @@ Check the following page: [Obtaining token](Token-and-IDs.md)
 
 ### When I open DCE a black window pops up quickly or nothing shows up
 
-If you have [.NET Core Runtime correctly installed](Dotnet.md), you might have downloaded the CLi flavor, try [downloading the GUI](Getting-started.md#gui-or-cli) instead.
-
-### How do I run DCE on macOS or Linux?
-
-Check the following pages:
-
-- [macOS usage instructions](MacOS.md)
-- [Linux usage instructions](Linux.md)
+If you have [.NET Runtime correctly installed](Dotnet.md), you might have downloaded the CLI flavor, try [downloading the GUI](Getting-started.md#gui-or-cli) instead.
 
 ### How can I set DCE to export automatically at certain times?
 
@@ -133,34 +126,26 @@ Make sure you're [copying the DM Channel ID](Token-and-IDs.md#how-to-get-a-direc
 
 ## Errors
 
-```console
+```yml
 DiscordChatExporter.Domain.Exceptions.DiscordChatExporterException: Authentication token is invalid.
-...
 ```
 
 ↳ Make sure the provided token is correct.
 
-```console
+```yml
 DiscordChatExporter.Domain.Exceptions.DiscordChatExporterException: Requested resource does not exist.
 ```
 
 ↳ Check your channel ID, it might be invalid. [Read this if you need help](Token-and-IDs.md).
 
-```console
+```yml
 DiscordChatExporter.Domain.Exceptions.DiscordChatExporterException: Access is forbidden.
 ```
 
 ↳ This means you don't have access to the channel.
 
-```console
-The application to execute does not exist:
-```
-
-↳ The `DiscordChatExporter.Cli.dll` file is missing. Keep the `.exe` and all the `.dll` files together. If you didn't move the files, try unzipping again.
-
-```console
+```yml
 System.Net.WebException: Error: TrustFailure ... Invalid certificate received from server.
-...
 ```
 
 ↳ Try running cert-sync.

.docs/Using-the-CLI.md

@@ -28,10 +28,10 @@ You can also drag and drop the folder on **every platform**.
 Now we're ready to run the commands. The examples on this page follow the Windows file path format, change the file
 paths according to your system.
 
-Type the following in Command Prompt (Terminal), then press ENTER to run it. This will list DCE's options.
+Type the following command in your terminal of choice, then press ENTER to run it. This will list all available subcommands and options.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll
+$ ./DiscordChatExporter.Cli
 ```
 
 > **Docker** users, please refer to the [Docker usage instructions](Docker.md).
@@ -49,18 +49,18 @@ dotnet DiscordChatExporter.Cli.dll
 | guilds                  | Outputs the list of accessible servers               |
 | guide                   | Explains how to obtain token, server, and channel ID |
 
-To use the commands, you'll need a token. For the instructions on how to get a token, please refer to [this page](Token-and-IDs.md), or run `dotnet DiscordChatExporter.Cli.dll guide`.
+To use the commands, you'll need a token. For the instructions on how to get a token, please refer to [this page](Token-and-IDs.md), or run `./DiscordChatExporter.Cli guide`.
 
 To get help with a specific command, run:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll command --help
+$ ./DiscordChatExporter.Cli command --help
 ```
 
 For example, to figure out how to use the `export` command, run:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export --help
+$ ./DiscordChatExporter.Cli export --help
 ```
 
 ## Export a specific channel
@@ -68,7 +68,7 @@ dotnet DiscordChatExporter.Cli.dll export --help
 You can quickly export with DCE's default settings by using just `-t token` and `-c channelid`.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555
 ```
 
 #### Changing the format
@@ -77,7 +77,7 @@ You can change the export format to `HtmlDark`, `HtmlLight`, `PlainText` `Json`
 format is `HtmlDark`.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -f Json
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 -f Json
 ```
 
 #### Changing the output filename
@@ -85,7 +85,7 @@ dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -f Json
 You can change the filename by using `-o name.ext`. e.g. for the `HTML` format:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -o myserver.html
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 -o myserver.html
 ```
 
 #### Changing the output directory
@@ -95,7 +95,7 @@ extension.
 If any of the folders in the path have a space in its name, escape them with quotes (").
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -o "C:\Discord Exports"
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 -o "C:\Discord Exports"
 ```
 
 #### Changing the filename and output directory
@@ -105,7 +105,7 @@ Note that the filename must have an extension, otherwise it will be considered a
 If any of the folders in the path have a space in its name, escape them with quotes (").
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -o "C:\Discord Exports\myserver.html"
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 -o "C:\Discord Exports\myserver.html"
 ```
 
 #### Generating the filename and output directory dynamically
@@ -113,7 +113,7 @@ dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -o "C:\Discord
 You can use template tokens to generate the output file path based on the server and channel metadata.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -o "C:\Discord Exports\%G\%T\%C.html"
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 -o "C:\Discord Exports\%G\%T\%C.html"
 ```
 
 Assuming you are exporting a channel named `"my-channel"` in the `"Text channels"` category from a server
@@ -140,13 +140,13 @@ You can use partitioning to split files after a given number of messages or file
 For example, a channel with 36 messages set to be partitioned every 10 messages will output 4 files.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -p 10
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 -p 10
 ```
 
 A 45 MB channel set to be partitioned every 20 MB will output 3 files.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 -p 20mb
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 -p 20mb
 ```
 
 #### Downloading assets
@@ -157,7 +157,7 @@ downloaded when using the plain text (TXT) export format.
 A folder containing the assets will be created along with the exported chat. They must be kept together.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 --media
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 --media
 ```
 
 #### Reusing assets
@@ -166,7 +166,7 @@ Previously downloaded assets can be reused to skip redundant downloads as long a
 same folder. Using this option can speed up future exports. This option requires the `--media` option.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 --media --reuse-media
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 --media --reuse-media
 ```
 
 #### Changing the media directory
@@ -175,7 +175,7 @@ By default, the media directory is created alongside the exported chat. You can
 providing a path that ends with a slash. All of the exported media will be stored in this directory.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 --media --media-dir "C:\Discord Media"
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 --media --media-dir "C:\Discord Media"
 ```
 
 #### Changing the date format
@@ -184,7 +184,7 @@ You can customize how dates are formatted in the exported files by using `--loca
 locales. The default locale is `en-US`.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 --locale "de-DE"
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 --locale "de-DE"
 ```
 
 #### Date ranges
@@ -193,14 +193,14 @@ dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 --locale "de-DE
 Use `--before` to export messages sent before the provided date. E.g. messages sent before September 18th, 2019:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 --before 2019-09-18
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 --before 2019-09-18
 ```
 
 **Messages sent after a date**
 Use `--after` to export messages sent after the provided date. E.g. messages sent after September 17th, 2019 11:34 PM:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 --after "2019-09-17 23:34"
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 --after "2019-09-17 23:34"
 ```
 
 **Messages sent in a date range**
@@ -208,7 +208,7 @@ Use `--before` and `--after` to export messages sent during the provided date ra
 September 17th, 2019 11:34 PM and September 18th:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll export -t "mfa.Ifrn" -c 53555 --after "2019-09-17 23:34" --before "2019-09-18"
+$ ./DiscordChatExporter.Cli export -t "mfa.Ifrn" -c 53555 --after "2019-09-17 23:34" --before "2019-09-18"
 ```
 
 You can try different formats like `17-SEP-2019 11:34 PM` or even refine your ranges down to
@@ -222,7 +222,7 @@ formats [here](https://docs.microsoft.com/en-us/dotnet/standard/base-types/custo
 To export all channels in a specific server, use the `exportguild` command and provide the server ID through the `-g|--guild` option:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll exportguild -t "mfa.Ifrn" -g 21814
+$ ./DiscordChatExporter.Cli exportguild -t "mfa.Ifrn" -g 21814
 ```
 
 #### Including threads
@@ -232,7 +232,7 @@ specifying which threads should be included. It has possible values of `none`, `
 threads should be included. To include both active and archived threads, use `--include-threads all`.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll exportguild -t "mfa.Ifrn" -g 21814 --include-threads all
+$ ./DiscordChatExporter.Cli exportguild -t "mfa.Ifrn" -g 21814 --include-threads all
 ```
 
 #### Including voice channels
@@ -242,7 +242,7 @@ specifying whether to include voice channels in the export. It has possible valu
 voice channels, use `--include-vc false`.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll exportguild -t "mfa.Ifrn" -g 21814 --include-vc false
+$ ./DiscordChatExporter.Cli exportguild -t "mfa.Ifrn" -g 21814 --include-vc false
 ```
 
 ### Export all channels
@@ -250,7 +250,7 @@ dotnet DiscordChatExporter.Cli.dll exportguild -t "mfa.Ifrn" -g 21814 --include-
 To export all accessible channels, use the `exportall` command:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll exportall -t "mfa.Ifrn"
+$ ./DiscordChatExporter.Cli exportall -t "mfa.Ifrn"
 ```
 
 #### Excluding DMs
@@ -258,7 +258,7 @@ dotnet DiscordChatExporter.Cli.dll exportall -t "mfa.Ifrn"
 To exclude DMs, add the `--include-dm false` option.
 
 ```console
-dotnet DiscordChatExporter.Cli.dll exportall -t "mfa.Ifrn" --include-dm false
+$ ./DiscordChatExporter.Cli exportall -t "mfa.Ifrn" --include-dm false
 ```
 
 ### List channels in a server
@@ -266,7 +266,7 @@ dotnet DiscordChatExporter.Cli.dll exportall -t "mfa.Ifrn" --include-dm false
 To list the channels available in a specific server, use the `channels` command and provide the server ID through the `-g|--guild` option:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll channels -t "mfa.Ifrn" -g 21814
+$ ./DiscordChatExporter.Cli channels -t "mfa.Ifrn" -g 21814
 ```
 
 ### List direct message channels
@@ -274,7 +274,7 @@ dotnet DiscordChatExporter.Cli.dll channels -t "mfa.Ifrn" -g 21814
 To list all DM channels accessible to the current account, use the `dm` command:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll dm -t "mfa.Ifrn"
+$ ./DiscordChatExporter.Cli dm -t "mfa.Ifrn"
 ```
 
 ### List servers
@@ -282,5 +282,5 @@ dotnet DiscordChatExporter.Cli.dll dm -t "mfa.Ifrn"
 To list all servers accessible by the current account, use the `guilds` command:
 
 ```console
-dotnet DiscordChatExporter.Cli.dll guilds -t "mfa.Ifrn" > C:\path\to\output.txt
+$ ./DiscordChatExporter.Cli guilds -t "mfa.Ifrn" > C:\path\to\output.txt
 ```

.github/workflows/docker.yml

@@ -12,8 +12,7 @@ on:
       - master
 
 jobs:
-  # Outputs from this job aren't really used, but it's here to verify that
-  # the Dockerfile builds correctly on pull requests.
+  # Outputs from this job aren't really used, but it's here to verify that the Dockerfile builds correctly
   pack:
     runs-on: ubuntu-latest
     timeout-minutes: 10
@@ -24,10 +23,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # 4.1.0
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Install Docker Buildx
-        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # 3.0.0
+        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
 
       - name: Build image
         run: >
@@ -38,7 +37,7 @@ jobs:
           --output type=tar,dest=DiscordChatExporter.Cli.Docker.tar
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # 3.1.3
+        uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
         with:
           name: DiscordChatExporter.Cli.Docker
           path: DiscordChatExporter.Cli.Docker.tar
@@ -56,10 +55,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # 4.1.0
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Install Docker Buildx
-        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # 3.0.0
+        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
 
       - name: Login to DockerHub
         run: >

.github/workflows/main.yml

@@ -18,7 +18,7 @@ env:
 
 jobs:
   format:
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
     timeout-minutes: 10
 
     permissions:
@@ -26,10 +26,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # 4.1.0
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Install .NET
-        uses: actions/setup-dotnet@3447fd6a9f9e57506b15f895c5b76d3b197dc7c2 # 3.2.0
+        uses: actions/setup-dotnet@4d6c8fcf3c8f7a60068d26b594648e99df24cee3 # v4.0.0
         with:
           dotnet-version: 8.0.x
 
@@ -43,7 +43,7 @@ jobs:
     # Tests need access to secrets, so we can't run them against PRs because of limited trust
     if: ${{ github.event_name != 'pull_request' }}
 
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
     timeout-minutes: 10
 
     permissions:
@@ -51,10 +51,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # 4.1.0
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Install .NET
-        uses: actions/setup-dotnet@3447fd6a9f9e57506b15f895c5b76d3b197dc7c2 # 3.2.0
+        uses: actions/setup-dotnet@4d6c8fcf3c8f7a60068d26b594648e99df24cee3 # v4.0.0
         with:
           dotnet-version: 8.0.x
 
@@ -72,7 +72,7 @@ jobs:
           DataCollectionRunSettings.DataCollectors.DataCollector.Configuration.Format=opencover
 
       - name: Upload coverage
-        uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d # 3.1.4
+        uses: codecov/codecov-action@f30e4959ba63075080d4f7f90cacc18d9f3fafd7 # v4.0.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
 
@@ -82,7 +82,24 @@ jobs:
         app:
           - DiscordChatExporter.Cli
           - DiscordChatExporter.Gui
+        rid:
+          - win-arm64
+          - win-x86
+          - win-x64
+          - linux-arm
+          - linux-arm64
+          - linux-musl-x64
+          - linux-x64
+          - osx-arm64
+          - osx-x64
+        include:
+          - app: DiscordChatExporter.Cli
+            asset: DiscordChatExporter.Cli
+          - app: DiscordChatExporter.Gui
+            # GUI assets aren't suffixed, unlike the CLI assets
+            asset: DiscordChatExporter
 
+    # Need to run on Windows because of DotnetRuntimeBootstrapper's dependency on Ressy
     runs-on: windows-latest
     timeout-minutes: 10
 
@@ -92,10 +109,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # 4.1.0
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
 
       - name: Install .NET
-        uses: actions/setup-dotnet@3447fd6a9f9e57506b15f895c5b76d3b197dc7c2 # 3.2.0
+        uses: actions/setup-dotnet@4d6c8fcf3c8f7a60068d26b594648e99df24cee3 # v4.0.0
         with:
           dotnet-version: 8.0.x
 
@@ -106,11 +123,13 @@ jobs:
           -p:CSharpier_Bypass=true
           --output ${{ matrix.app }}/bin/publish/
           --configuration Release
+          --runtime ${{ matrix.rid }}
+          --no-self-contained
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # 3.1.3
+        uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
         with:
-          name: ${{ matrix.app }}
+          name: ${{ matrix.asset }}.${{ matrix.rid }}
           path: ${{ matrix.app }}/bin/publish/
           if-no-files-found: error
 
@@ -147,11 +166,21 @@ jobs:
         app:
           - DiscordChatExporter.Cli
           - DiscordChatExporter.Gui
+        rid:
+          - win-arm64
+          - win-x86
+          - win-x64
+          - linux-arm
+          - linux-arm64
+          - linux-musl-x64
+          - linux-x64
+          - osx-arm64
+          - osx-x64
         include:
           - app: DiscordChatExporter.Cli
             asset: DiscordChatExporter.Cli
           - app: DiscordChatExporter.Gui
-            # GUI asset isn't suffixed, unlike the CLI asset
+            # GUI assets aren't suffixed, unlike the CLI assets
             asset: DiscordChatExporter
 
     runs-on: ubuntu-latest
@@ -163,22 +192,22 @@ jobs:
 
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # 3.0.2
+        uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
         with:
-          name: ${{ matrix.app }}
+          name: ${{ matrix.asset }}.${{ matrix.rid }}
           path: ${{ matrix.app }}/
-
+          
       - name: Create package
         # Change into the artifacts directory to avoid including the directory itself in the zip archive
         working-directory: ${{ matrix.app }}/
-        run: zip -r ../${{ matrix.asset }}.zip .
+        run: zip -r ../${{ matrix.asset }}.${{ matrix.rid }}.zip .
 
       - name: Upload release asset
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: >
           gh release upload ${{ github.ref_name }}
-          ${{ matrix.asset }}.zip
+          ${{ matrix.asset }}.${{ matrix.rid }}.zip
           --repo ${{ github.event.repository.full_name }}
 
   notify:

DiscordChatExporter.Cli.Tests/DiscordChatExporter.Cli.Tests.csproj

@@ -11,19 +11,18 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="AngleSharp" Version="1.0.7" />
-    <PackageReference Include="coverlet.collector" Version="6.0.0" PrivateAssets="all" />
-    <PackageReference Include="CSharpier.MsBuild" Version="0.26.7" PrivateAssets="all" />
+    <PackageReference Include="AngleSharp" Version="1.1.2" />
+    <PackageReference Include="coverlet.collector" Version="6.0.2" PrivateAssets="all" />
+    <PackageReference Include="CSharpier.MsBuild" Version="0.28.2" PrivateAssets="all" />
     <PackageReference Include="FluentAssertions" Version="6.12.0" />
     <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3" PrivateAssets="all" />
     <PackageReference Include="JsonExtensions" Version="1.2.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="8.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="ReflectionMagic" Version="5.0.0" />
-    <PackageReference Include="xunit" Version="2.6.4" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="xunit" Version="2.8.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.0" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>

DiscordChatExporter.Cli.Tests/Infra/ExportWrapper.cs

@@ -93,13 +93,12 @@ public static class ExportWrapper
         Snowflake messageId
     )
     {
-        var message = (await GetMessagesAsHtmlAsync(channelId)).SingleOrDefault(
-            e =>
-                string.Equals(
-                    e.GetAttribute("data-message-id"),
-                    messageId.ToString(),
-                    StringComparison.OrdinalIgnoreCase
-                )
+        var message = (await GetMessagesAsHtmlAsync(channelId)).SingleOrDefault(e =>
+            string.Equals(
+                e.GetAttribute("data-message-id"),
+                messageId.ToString(),
+                StringComparison.OrdinalIgnoreCase
+            )
         );
 
         if (message is null)
@@ -117,13 +116,12 @@ public static class ExportWrapper
         Snowflake messageId
     )
     {
-        var message = (await GetMessagesAsJsonAsync(channelId)).SingleOrDefault(
-            j =>
-                string.Equals(
-                    j.GetProperty("id").GetString(),
-                    messageId.ToString(),
-                    StringComparison.OrdinalIgnoreCase
-                )
+        var message = (await GetMessagesAsJsonAsync(channelId)).SingleOrDefault(j =>
+            string.Equals(
+                j.GetProperty("id").GetString(),
+                messageId.ToString(),
+                StringComparison.OrdinalIgnoreCase
+            )
         );
 
         if (message.ValueKind == JsonValueKind.Undefined)

DiscordChatExporter.Cli.Tests/Specs/DateRangeSpecs.cs

@@ -53,10 +53,8 @@ public class DateRangeSpecs
                     new DateTimeOffset(2021, 09, 08, 14, 26, 35, TimeSpan.Zero)
                 ],
                 o =>
-                    o.Using<DateTimeOffset>(
-                            ctx =>
-                                ctx.Subject.Should()
-                                    .BeCloseTo(ctx.Expectation, TimeSpan.FromSeconds(1))
+                    o.Using<DateTimeOffset>(ctx =>
+                            ctx.Subject.Should().BeCloseTo(ctx.Expectation, TimeSpan.FromSeconds(1))
                         )
                         .WhenTypeIs<DateTimeOffset>()
             );
@@ -97,10 +95,8 @@ public class DateRangeSpecs
                     new DateTimeOffset(2021, 07, 19, 17, 23, 58, TimeSpan.Zero)
                 ],
                 o =>
-                    o.Using<DateTimeOffset>(
-                            ctx =>
-                                ctx.Subject.Should()
-                                    .BeCloseTo(ctx.Expectation, TimeSpan.FromSeconds(1))
+                    o.Using<DateTimeOffset>(ctx =>
+                            ctx.Subject.Should().BeCloseTo(ctx.Expectation, TimeSpan.FromSeconds(1))
                         )
                         .WhenTypeIs<DateTimeOffset>()
             );
@@ -144,10 +140,8 @@ public class DateRangeSpecs
                     new DateTimeOffset(2021, 07, 24, 14, 52, 40, TimeSpan.Zero)
                 ],
                 o =>
-                    o.Using<DateTimeOffset>(
-                            ctx =>
-                                ctx.Subject.Should()
-                                    .BeCloseTo(ctx.Expectation, TimeSpan.FromSeconds(1))
+                    o.Using<DateTimeOffset>(ctx =>
+                            ctx.Subject.Should().BeCloseTo(ctx.Expectation, TimeSpan.FromSeconds(1))
                         )
                         .WhenTypeIs<DateTimeOffset>()
             );

DiscordChatExporter.Cli.Tests/Specs/HtmlEmbedSpecs.cs

@@ -90,12 +90,11 @@ public class HtmlEmbedSpecs
             .QuerySelectorAll("source")
             .Select(e => e.GetAttribute("src"))
             .WhereNotNull()
-            .Where(
-                s =>
-                    s.Contains(
-                        "i_am_currently_feeling_slight_displeasure_of_what_you_have_just_sent_lqrem.mp4",
-                        StringComparison.Ordinal
-                    )
+            .Where(s =>
+                s.Contains(
+                    "i_am_currently_feeling_slight_displeasure_of_what_you_have_just_sent_lqrem.mp4",
+                    StringComparison.Ordinal
+                )
             )
             .Should()
             .ContainSingle();
@@ -150,6 +149,26 @@ public class HtmlEmbedSpecs
         iframeUrl.Should().StartWith("https://open.spotify.com/embed/track/1LHZMWefF9502NPfArRfvP");
     }
 
+    [Fact(Skip = "Twitch does not allow embeds from inside local HTML files")]
+    public async Task I_can_export_a_channel_that_contains_a_message_with_a_Twitch_clip_embed()
+    {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/1196
+
+        // Act
+        var message = await ExportWrapper.GetMessageAsHtmlAsync(
+            ChannelIds.EmbedTestCases,
+            Snowflake.Parse("1207002986128216074")
+        );
+
+        // Assert
+        var iframeUrl = message.QuerySelector("iframe")?.GetAttribute("src");
+        iframeUrl
+            .Should()
+            .StartWith(
+                "https://clips.twitch.tv/embed?clip=SpicyMildCiderThisIsSparta--PQhbllrvej_Ee7v"
+            );
+    }
+
     [Fact]
     public async Task I_can_export_a_channel_that_contains_a_message_with_a_YouTube_video_embed()
     {
@@ -185,42 +204,38 @@ public class HtmlEmbedSpecs
 
         imageUrls
             .Should()
-            .Contain(
-                u =>
-                    u.EndsWith(
-                        "https/pbs.twimg.com/media/FVYIzYPWAAAMBqZ.png",
-                        StringComparison.Ordinal
-                    )
+            .Contain(u =>
+                u.EndsWith(
+                    "https/pbs.twimg.com/media/FVYIzYPWAAAMBqZ.png",
+                    StringComparison.Ordinal
+                )
             );
 
         imageUrls
             .Should()
-            .Contain(
-                u =>
-                    u.EndsWith(
-                        "https/pbs.twimg.com/media/FVYJBWJWAAMNAx2.png",
-                        StringComparison.Ordinal
-                    )
+            .Contain(u =>
+                u.EndsWith(
+                    "https/pbs.twimg.com/media/FVYJBWJWAAMNAx2.png",
+                    StringComparison.Ordinal
+                )
             );
 
         imageUrls
             .Should()
-            .Contain(
-                u =>
-                    u.EndsWith(
-                        "https/pbs.twimg.com/media/FVYJHiRX0AANZcz.png",
-                        StringComparison.Ordinal
-                    )
+            .Contain(u =>
+                u.EndsWith(
+                    "https/pbs.twimg.com/media/FVYJHiRX0AANZcz.png",
+                    StringComparison.Ordinal
+                )
             );
 
         imageUrls
             .Should()
-            .Contain(
-                u =>
-                    u.EndsWith(
-                        "https/pbs.twimg.com/media/FVYJNZNXwAAPnVG.png",
-                        StringComparison.Ordinal
-                    )
+            .Contain(u =>
+                u.EndsWith(
+                    "https/pbs.twimg.com/media/FVYJNZNXwAAPnVG.png",
+                    StringComparison.Ordinal
+                )
             );
 
         message.QuerySelectorAll(".chatlog__embed").Should().ContainSingle();

DiscordChatExporter.Cli.dockerfile

@@ -40,20 +40,21 @@ LABEL org.opencontainers.image.licenses="MIT"
 
 # Alpine image doesn't come with the ICU libraries pre-installed, so we need to install them manually.
 # We need the full ICU data because we allow the user to specify any locale for formatting purposes.
-RUN apk add --no-cache icu-libs
-RUN apk add --no-cache icu-data-full
+RUN apk add --no-cache icu-libs icu-data-full
 ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=false
 ENV LC_ALL=en_US.UTF-8
 ENV LANG=en_US.UTF-8
 
 # Use a non-root user to ensure that the files shared with the host are accessible by the host user
 # https://github.com/Tyrrrz/DiscordChatExporter/issues/851
-RUN adduser --disabled-password --no-create-home dce
-USER dce
+# https://github.com/Tyrrrz/DiscordChatExporter/issues/1174
+RUN apk add --no-cache su-exec
+RUN addgroup -S -g 1000 dce && adduser -S -H -G dce -u 1000 dce
 
 # This directory is exposed to the user for mounting purposes, so it's important that it always
 # stays the same for backwards compatibility.
 WORKDIR /out
 
 COPY --from=build /tmp/app/DiscordChatExporter.Cli/bin/publish /opt/app
-ENTRYPOINT ["/opt/app/DiscordChatExporter.Cli"]
+COPY docker-entrypoint.sh /opt/app
+ENTRYPOINT ["/opt/app/docker-entrypoint.sh"]

DiscordChatExporter.Cli/Commands/GetChannelsCommand.cs

@@ -7,7 +7,6 @@ using DiscordChatExporter.Cli.Commands.Base;
 using DiscordChatExporter.Cli.Commands.Converters;
 using DiscordChatExporter.Cli.Commands.Shared;
 using DiscordChatExporter.Core.Discord;
-using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Utils.Extensions;
 
 namespace DiscordChatExporter.Cli.Commands;
@@ -59,7 +58,7 @@ public class GetChannelsCommand : DiscordCommandBase
                 )
                     .OrderBy(c => c.Name)
                     .ToArray()
-                : Array.Empty<Channel>();
+                : [];
 
         foreach (var channel in channels)
         {

DiscordChatExporter.Cli/DiscordChatExporter.Cli.csproj

@@ -4,14 +4,14 @@
     <OutputType>Exe</OutputType>
     <ApplicationIcon>..\favicon.ico</ApplicationIcon>
   </PropertyGroup>
-
+  
   <ItemGroup>
     <PackageReference Include="CliFx" Version="2.3.5" />
-    <PackageReference Include="CSharpier.MsBuild" Version="0.26.7" PrivateAssets="all" />
+    <PackageReference Include="CSharpier.MsBuild" Version="0.28.2" PrivateAssets="all" />
     <PackageReference Include="Deorcify" Version="1.0.2" PrivateAssets="all" />
-    <PackageReference Include="DotnetRuntimeBootstrapper" Version="2.5.2" PrivateAssets="all" />
+    <PackageReference Include="DotnetRuntimeBootstrapper" Version="2.5.4" PrivateAssets="all" />
     <PackageReference Include="Gress" Version="2.1.1" />
-    <PackageReference Include="Spectre.Console" Version="0.48.0" />
+    <PackageReference Include="Spectre.Console" Version="0.49.1" />
   </ItemGroup>
 
   <ItemGroup>

DiscordChatExporter.Core/Discord/Data/ChannelNode.cs

@@ -0,0 +1,21 @@
+using System.Collections.Generic;
+using System.Linq;
+
+namespace DiscordChatExporter.Core.Discord.Data;
+
+public record ChannelNode(Channel Channel, IReadOnlyList<ChannelNode> Children)
+{
+    public static IReadOnlyList<ChannelNode> BuildTree(IReadOnlyList<Channel> channels)
+    {
+        IReadOnlyList<ChannelNode> GetChildren(Channel parent) =>
+            channels
+                .Where(c => c.Parent?.Id == parent.Id)
+                .Select(c => new ChannelNode(c, GetChildren(c)))
+                .ToArray();
+
+        return channels
+            .Where(c => c.Parent is null)
+            .Select(c => new ChannelNode(c, GetChildren(c)))
+            .ToArray();
+    }
+}

DiscordChatExporter.Core/Discord/Data/Embeds/Embed.cs

@@ -31,6 +31,9 @@ public partial record Embed(
     public SpotifyTrackEmbedProjection? TryGetSpotifyTrack() =>
         SpotifyTrackEmbedProjection.TryResolve(this);
 
+    public TwitchClipEmbedProjection? TryGetTwitchClip() =>
+        TwitchClipEmbedProjection.TryResolve(this);
+
     public YouTubeVideoEmbedProjection? TryGetYouTubeVideo() =>
         YouTubeVideoEmbedProjection.TryResolve(this);
 }
@@ -60,7 +63,7 @@ public partial record Embed
             json.GetPropertyOrNull("fields")
                 ?.EnumerateArrayOrNull()
                 ?.Select(EmbedField.Parse)
-                .ToArray() ?? Array.Empty<EmbedField>();
+                .ToArray() ?? [];
 
         var thumbnail = json.GetPropertyOrNull("thumbnail")?.Pipe(EmbedImage.Parse);
 
@@ -75,7 +78,7 @@ public partial record Embed
             json.GetPropertyOrNull("image")
                 ?.Pipe(EmbedImage.Parse)
                 .ToSingletonEnumerable()
-                .ToArray() ?? Array.Empty<EmbedImage>();
+                .ToArray() ?? [];
 
         var video = json.GetPropertyOrNull("video")?.Pipe(EmbedVideo.Parse);
 

DiscordChatExporter.Core/Discord/Data/Embeds/TwitchClipEmbedProjection.cs

@@ -0,0 +1,53 @@
+using System.Text.RegularExpressions;
+
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
+
+public partial record TwitchClipEmbedProjection(string ClipId)
+{
+    public string Url => $"https://clips.twitch.tv/embed?clip={ClipId}&parent=localhost";
+}
+
+public partial record TwitchClipEmbedProjection
+{
+    private static string? TryParseClipId(string embedUrl)
+    {
+        // https://clips.twitch.tv/SpookyTenuousPidgeonPanicVis
+        {
+            var clipId = Regex
+                .Match(embedUrl, @"clips\.twitch\.tv/(.*?)(?:\?|&|/|$)")
+                .Groups[1]
+                .Value;
+
+            if (!string.IsNullOrWhiteSpace(clipId))
+                return clipId;
+        }
+
+        // https://twitch.tv/clip/SpookyTenuousPidgeonPanicVis
+        {
+            var clipId = Regex
+                .Match(embedUrl, @"twitch\.tv/clip/(.*?)(?:\?|&|/|$)")
+                .Groups[1]
+                .Value;
+
+            if (!string.IsNullOrWhiteSpace(clipId))
+                return clipId;
+        }
+
+        return null;
+    }
+
+    public static TwitchClipEmbedProjection? TryResolve(Embed embed)
+    {
+        if (embed.Kind != EmbedKind.Video)
+            return null;
+
+        if (string.IsNullOrWhiteSpace(embed.Url))
+            return null;
+
+        var clipId = TryParseClipId(embed.Url);
+        if (string.IsNullOrWhiteSpace(clipId))
+            return null;
+
+        return new TwitchClipEmbedProjection(clipId);
+    }
+}

DiscordChatExporter.Core/Discord/Data/Member.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Linq;
 using System.Text.Json;
 using DiscordChatExporter.Core.Discord.Data.Common;
@@ -21,8 +20,7 @@ public partial record Member(
 
 public partial record Member
 {
-    public static Member CreateFallback(User user) =>
-        new(user, null, null, Array.Empty<Snowflake>());
+    public static Member CreateFallback(User user) => new(user, null, null, []);
 
     public static Member Parse(JsonElement json, Snowflake? guildId = null)
     {
@@ -34,7 +32,7 @@ public partial record Member
                 ?.EnumerateArray()
                 .Select(j => j.GetNonWhiteSpaceString())
                 .Select(Snowflake.Parse)
-                .ToArray() ?? Array.Empty<Snowflake>();
+                .ToArray() ?? [];
 
         var avatarUrl = guildId is not null
             ? json.GetPropertyOrNull("avatar")

DiscordChatExporter.Core/Discord/Data/Message.cs

@@ -83,16 +83,15 @@ public partial record Message
                 // Find embeds with the same URL that only contain a single image and nothing else
                 var trailingEmbeds = embeds
                     .Skip(i + 1)
-                    .TakeWhile(
-                        e =>
-                            e.Url == embed.Url
-                            && e.Timestamp is null
-                            && e.Author is null
-                            && e.Color is null
-                            && string.IsNullOrWhiteSpace(e.Description)
-                            && !e.Fields.Any()
-                            && e.Images.Count == 1
-                            && e.Footer is null
+                    .TakeWhile(e =>
+                        e.Url == embed.Url
+                        && e.Timestamp is null
+                        && e.Author is null
+                        && e.Color is null
+                        && string.IsNullOrWhiteSpace(e.Description)
+                        && !e.Fields.Any()
+                        && e.Images.Count == 1
+                        && e.Footer is null
                     )
                     .ToArray();
 
@@ -144,28 +143,28 @@ public partial record Message
             json.GetPropertyOrNull("attachments")
                 ?.EnumerateArrayOrNull()
                 ?.Select(Attachment.Parse)
-                .ToArray() ?? Array.Empty<Attachment>();
+                .ToArray() ?? [];
 
         var embeds = NormalizeEmbeds(
             json.GetPropertyOrNull("embeds")?.EnumerateArrayOrNull()?.Select(Embed.Parse).ToArray()
-                ?? Array.Empty<Embed>()
+                ?? []
         );
 
         var stickers =
             json.GetPropertyOrNull("sticker_items")
                 ?.EnumerateArrayOrNull()
                 ?.Select(Sticker.Parse)
-                .ToArray() ?? Array.Empty<Sticker>();
+                .ToArray() ?? [];
 
         var reactions =
             json.GetPropertyOrNull("reactions")
                 ?.EnumerateArrayOrNull()
                 ?.Select(Reaction.Parse)
-                .ToArray() ?? Array.Empty<Reaction>();
+                .ToArray() ?? [];
 
         var mentionedUsers =
             json.GetPropertyOrNull("mentions")?.EnumerateArrayOrNull()?.Select(User.Parse).ToArray()
-            ?? Array.Empty<User>();
+            ?? [];
 
         var messageReference = json.GetPropertyOrNull("message_reference")
             ?.Pipe(MessageReference.Parse);

DiscordChatExporter.Core/Discord/DiscordClient.cs

@@ -66,12 +66,12 @@ public class DiscordClient(string token)
                 if (remainingRequestCount <= 0 && resetAfterDelay is not null)
                 {
                     var delay =
-                    // Adding a small buffer to the reset time reduces the chance of getting
-                    // rate limited again, because it allows for more requests to be released.
-                    (resetAfterDelay.Value + TimeSpan.FromSeconds(1))
-                    // Sometimes Discord returns an absurdly high value for the reset time, which
-                    // is not actually enforced by the server. So we cap it at a reasonable value.
-                    .Clamp(TimeSpan.Zero, TimeSpan.FromSeconds(60));
+                        // Adding a small buffer to the reset time reduces the chance of getting
+                        // rate limited again, because it allows for more requests to be released.
+                        (resetAfterDelay.Value + TimeSpan.FromSeconds(1))
+                        // Sometimes Discord returns an absurdly high value for the reset time, which
+                        // is not actually enforced by the server. So we cap it at a reasonable value.
+                        .Clamp(TimeSpan.Zero, TimeSpan.FromSeconds(60));
 
                     await Task.Delay(delay, innerCancellationToken);
                 }
@@ -152,8 +152,13 @@ public class DiscordClient(string token)
                 _
                     => throw new DiscordChatExporterException(
                         $"""
-                        Request to '{url}' failed: {response.StatusCode.ToString().ToSpaceSeparatedWords().ToLowerInvariant()}.
-                        Response content: {await response.Content.ReadAsStringAsync(cancellationToken)}
+                        Request to '{url}' failed: {response
+                            .StatusCode.ToString()
+                            .ToSpaceSeparatedWords()
+                            .ToLowerInvariant()}.
+                        Response content: {await response.Content.ReadAsStringAsync(
+                            cancellationToken
+                        )}
                         """,
                         true
                     )

DiscordChatExporter.Core/DiscordChatExporter.Core.csproj

@@ -1,15 +1,15 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <ItemGroup>
-    <PackageReference Include="AsyncKeyedLock" Version="6.2.4" />
-    <PackageReference Include="CSharpier.MsBuild" Version="0.26.7" PrivateAssets="all" />
+    <PackageReference Include="AsyncKeyedLock" Version="6.4.2" />
+    <PackageReference Include="CSharpier.MsBuild" Version="0.28.2" PrivateAssets="all" />
     <PackageReference Include="Gress" Version="2.1.1" />
     <PackageReference Include="JsonExtensions" Version="1.2.0" />
-    <PackageReference Include="Polly" Version="8.2.0" />
-    <PackageReference Include="RazorBlade" Version="0.5.0" />
+    <PackageReference Include="Polly" Version="8.3.1" />
+    <PackageReference Include="RazorBlade" Version="0.6.0" />
     <PackageReference Include="Superpower" Version="3.0.0" />
-    <PackageReference Include="WebMarkupMin.Core" Version="2.14.0" />
-    <PackageReference Include="YoutubeExplode" Version="6.3.10" />
+    <PackageReference Include="WebMarkupMin.Core" Version="2.16.0" />
+    <PackageReference Include="YoutubeExplode" Version="6.3.14" />
   </ItemGroup>
 
 </Project>

DiscordChatExporter.Core/Exporting/ChannelExporter.cs

@@ -20,8 +20,8 @@ public class ChannelExporter(DiscordClient discord)
         if (request.Channel.Kind == ChannelKind.GuildForum)
         {
             throw new DiscordChatExporterException(
-                $"Channel '{request.Channel.Name}' (#{request.Channel.Id}) "
-                    + $"of guild '{request.Guild.Name}' (#{request.Guild.Id}) "
+                $"Channel '{request.Channel.Name}' "
+                    + $"of guild '{request.Guild.Name}' "
                     + $"is a forum and cannot be exported directly. "
                     + "You need to pull its threads and export them individually."
             );
@@ -31,8 +31,8 @@ public class ChannelExporter(DiscordClient discord)
         if (request.Channel.IsEmpty)
         {
             throw new DiscordChatExporterException(
-                $"Channel '{request.Channel.Name}' (#{request.Channel.Id}) "
-                    + $"of guild '{request.Guild.Name}' (#{request.Guild.Id}) "
+                $"Channel '{request.Channel.Name}' "
+                    + $"of guild '{request.Guild.Name}' "
                     + $"does not contain any messages."
             );
         }
@@ -41,8 +41,8 @@ public class ChannelExporter(DiscordClient discord)
         if (request.After is not null && !request.Channel.MayHaveMessagesAfter(request.After.Value))
         {
             throw new DiscordChatExporterException(
-                $"Channel '{request.Channel.Name}' (#{request.Channel.Id}) "
-                    + $"of guild '{request.Guild.Name}' (#{request.Guild.Id}) "
+                $"Channel '{request.Channel.Name}' "
+                    + $"of guild '{request.Guild.Name}' "
                     + $"does not contain any messages within the specified period."
             );
         }
@@ -54,8 +54,8 @@ public class ChannelExporter(DiscordClient discord)
         )
         {
             throw new DiscordChatExporterException(
-                $"Channel '{request.Channel.Name}' (#{request.Channel.Id}) "
-                    + $"of guild '{request.Guild.Name}' (#{request.Guild.Id}) "
+                $"Channel '{request.Channel.Name}' "
+                    + $"of guild '{request.Guild.Name}' "
                     + $"does not contain any messages within the specified period."
             );
         }

DiscordChatExporter.Core/Exporting/ExportAssetDownloader.cs

@@ -58,16 +58,15 @@ internal partial class ExportAssetDownloader(string workingDirPath, bool reuse)
                 {
                     var lastModified = response
                         .Content.Headers.TryGetValue("Last-Modified")
-                        ?.Pipe(
-                            s =>
-                                DateTimeOffset.TryParse(
-                                    s,
-                                    CultureInfo.InvariantCulture,
-                                    DateTimeStyles.None,
-                                    out var instant
-                                )
-                                    ? instant
-                                    : (DateTimeOffset?)null
+                        ?.Pipe(s =>
+                            DateTimeOffset.TryParse(
+                                s,
+                                CultureInfo.InvariantCulture,
+                                DateTimeStyles.None,
+                                out var instant
+                            )
+                                ? instant
+                                : (DateTimeOffset?)null
                         );
 
                     if (lastModified is not null)

DiscordChatExporter.Core/Exporting/ExportContext.cs

@@ -93,11 +93,10 @@ internal class ExportContext(DiscordClient discord, ExportRequest request)
 
     public IReadOnlyList<Role> GetUserRoles(Snowflake id) =>
         TryGetMember(id)
-            ?.RoleIds
-            .Select(TryGetRole)
+            ?.RoleIds.Select(TryGetRole)
             .WhereNotNull()
             .OrderByDescending(r => r.Position)
-            .ToArray() ?? Array.Empty<Role>();
+            .ToArray() ?? [];
 
     public Color? TryGetUserColor(Snowflake id) =>
         GetUserRoles(id).Where(r => r.Color is not null).Select(r => r.Color).FirstOrDefault();

DiscordChatExporter.Core/Exporting/Filtering/ContainsMessageFilter.cs

@@ -22,12 +22,11 @@ internal class ContainsMessageFilter(string text) : MessageFilter
 
     public override bool IsMatch(Message message) =>
         IsMatch(message.Content)
-        || message.Embeds.Any(
-            e =>
-                IsMatch(e.Title)
-                || IsMatch(e.Author?.Name)
-                || IsMatch(e.Description)
-                || IsMatch(e.Footer?.Text)
-                || e.Fields.Any(f => IsMatch(f.Name) || IsMatch(f.Value))
+        || message.Embeds.Any(e =>
+            IsMatch(e.Title)
+            || IsMatch(e.Author?.Name)
+            || IsMatch(e.Description)
+            || IsMatch(e.Footer?.Text)
+            || e.Fields.Any(f => IsMatch(f.Name) || IsMatch(f.Value))
         );
 }

DiscordChatExporter.Core/Exporting/Filtering/MentionsMessageFilter.cs

@@ -7,11 +7,10 @@ namespace DiscordChatExporter.Core.Exporting.Filtering;
 internal class MentionsMessageFilter(string value) : MessageFilter
 {
     public override bool IsMatch(Message message) =>
-        message.MentionedUsers.Any(
-            user =>
-                string.Equals(value, user.Name, StringComparison.OrdinalIgnoreCase)
-                || string.Equals(value, user.DisplayName, StringComparison.OrdinalIgnoreCase)
-                || string.Equals(value, user.FullName, StringComparison.OrdinalIgnoreCase)
-                || string.Equals(value, user.Id.ToString(), StringComparison.OrdinalIgnoreCase)
+        message.MentionedUsers.Any(user =>
+            string.Equals(value, user.Name, StringComparison.OrdinalIgnoreCase)
+            || string.Equals(value, user.DisplayName, StringComparison.OrdinalIgnoreCase)
+            || string.Equals(value, user.FullName, StringComparison.OrdinalIgnoreCase)
+            || string.Equals(value, user.Id.ToString(), StringComparison.OrdinalIgnoreCase)
         );
 }

DiscordChatExporter.Core/Exporting/Filtering/Parsing/FilterGrammar.cs

@@ -30,8 +30,8 @@ internal static class FilterGrammar
         .OneOf(QuotedString, UnquotedString)
         .Named("text string");
 
-    private static readonly TextParser<MessageFilter> ContainsFilter = String.Select(
-        v => (MessageFilter)new ContainsMessageFilter(v)
+    private static readonly TextParser<MessageFilter> ContainsFilter = String.Select(v =>
+        (MessageFilter)new ContainsMessageFilter(v)
     );
 
     private static readonly TextParser<MessageFilter> FromFilter = Span.EqualToIgnoreCase("from:")

DiscordChatExporter.Core/Exporting/Filtering/ReactionMessageFilter.cs

@@ -7,10 +7,9 @@ namespace DiscordChatExporter.Core.Exporting.Filtering;
 internal class ReactionMessageFilter(string value) : MessageFilter
 {
     public override bool IsMatch(Message message) =>
-        message.Reactions.Any(
-            r =>
-                string.Equals(value, r.Emoji.Id?.ToString(), StringComparison.OrdinalIgnoreCase)
-                || string.Equals(value, r.Emoji.Name, StringComparison.OrdinalIgnoreCase)
-                || string.Equals(value, r.Emoji.Code, StringComparison.OrdinalIgnoreCase)
+        message.Reactions.Any(r =>
+            string.Equals(value, r.Emoji.Id?.ToString(), StringComparison.OrdinalIgnoreCase)
+            || string.Equals(value, r.Emoji.Name, StringComparison.OrdinalIgnoreCase)
+            || string.Equals(value, r.Emoji.Code, StringComparison.OrdinalIgnoreCase)
         );
 }

DiscordChatExporter.Core/Exporting/HtmlMarkdownVisitor.cs

@@ -155,7 +155,9 @@ internal partial class HtmlMarkdownVisitor(
         buffer.Append(
             // lang=html
             $"""
-            <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">{HtmlEncode(inlineCodeBlock.Code)}</code>
+            <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">{HtmlEncode(
+                inlineCodeBlock.Code
+            )}</code>
             """
         );
 
@@ -174,7 +176,9 @@ internal partial class HtmlMarkdownVisitor(
         buffer.Append(
             // lang=html
             $"""
-            <code class="chatlog__markdown-pre chatlog__markdown-pre--multiline {highlightClass}">{HtmlEncode(multiLineCodeBlock.Code)}</code>
+            <code class="chatlog__markdown-pre chatlog__markdown-pre--multiline {highlightClass}">{HtmlEncode(
+                multiLineCodeBlock.Code
+            )}</code>
             """
         );
 
@@ -267,7 +271,9 @@ internal partial class HtmlMarkdownVisitor(
             buffer.Append(
                 // lang=html
                 $"""
-                <span class="chatlog__markdown-mention" title="{HtmlEncode(fullName)}">@{HtmlEncode(displayName)}</span>
+                <span class="chatlog__markdown-mention" title="{HtmlEncode(fullName)}">@{HtmlEncode(
+                    displayName
+                )}</span>
                 """
             );
         }
@@ -292,8 +298,12 @@ internal partial class HtmlMarkdownVisitor(
 
             var style = color is not null
                 ? $"""
-                  color: rgb({color.Value.R}, {color.Value.G}, {color.Value.B}); background-color: rgba({color.Value.R}, {color.Value.G}, {color.Value.B}, 0.1);
-                  """
+                    color: rgb({color.Value.R}, {color.Value.G}, {color
+                        .Value
+                        .B}); background-color: rgba({color.Value.R}, {color.Value.G}, {color
+                        .Value
+                        .B}, 0.1);
+                    """
                 : null;
 
             buffer.Append(
@@ -321,7 +331,9 @@ internal partial class HtmlMarkdownVisitor(
         buffer.Append(
             // lang=html
             $"""
-            <span class="chatlog__markdown-timestamp" title="{HtmlEncode(formattedLong)}">{HtmlEncode(formatted)}</span>
+            <span class="chatlog__markdown-timestamp" title="{HtmlEncode(
+                formattedLong
+            )}">{HtmlEncode(formatted)}</span>
             """
         );
 
@@ -344,10 +356,8 @@ internal partial class HtmlMarkdownVisitor
 
         var isJumbo =
             isJumboAllowed
-            && nodes.All(
-                n =>
-                    n is EmojiNode
-                    || n is TextNode textNode && string.IsNullOrWhiteSpace(textNode.Text)
+            && nodes.All(n =>
+                n is EmojiNode || n is TextNode textNode && string.IsNullOrWhiteSpace(textNode.Text)
             );
 
         var buffer = new StringBuilder();

DiscordChatExporter.Core/Exporting/MessageGroupTemplate.cshtml

@@ -448,7 +448,10 @@
                             </div>
                         }
                         // Generic video embed
-                        else if (embed.Kind == EmbedKind.Video && !string.IsNullOrWhiteSpace(embed.Url))
+                        else if (embed.Kind == EmbedKind.Video 
+                                 && !string.IsNullOrWhiteSpace(embed.Url)
+                                 // Twitch clips cannot be embedded in local HTML files
+                                 && embed.TryGetTwitchClip() is null)
                         {
                             var embedVideoUrl =
                                 embed.Video?.ProxyUrl ?? embed.Video?.Url ??

DiscordChatExporter.Core/Exporting/PlainTextMessageWriter.cs

@@ -5,6 +5,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Discord.Data.Embeds;
+using DiscordChatExporter.Core.Utils.Extensions;
 
 namespace DiscordChatExporter.Core.Exporting;
 
@@ -172,18 +173,21 @@ internal class PlainTextMessageWriter(Stream stream, ExportContext context)
 
         await _writer.WriteLineAsync("{Reactions}");
 
-        foreach (var reaction in reactions)
+        foreach (var (reaction, i) in reactions.WithIndex())
         {
             cancellationToken.ThrowIfCancellationRequested();
 
+            if (i > 0)
+            {
+                await _writer.WriteAsync(' ');
+            }
+
             await _writer.WriteAsync(reaction.Emoji.Name);
 
             if (reaction.Count > 1)
             {
                 await _writer.WriteAsync($" ({reaction.Count})");
             }
-
-            await _writer.WriteAsync(' ');
         }
 
         await _writer.WriteLineAsync();

DiscordChatExporter.Core/Exporting/PreambleTemplate.cshtml

@@ -702,6 +702,10 @@
         .chatlog__embed-spotify {
             border: 0;
         }
+        
+        .chatlog__embed-twitch {
+            border: 0;
+        }
 
         .chatlog__embed-youtube-container {
             margin-top: 0.6rem;

DiscordChatExporter.Core/Utils/Http.cs

@@ -25,11 +25,10 @@ public static class Http
     private static bool IsRetryableException(Exception exception) =>
         exception
             .GetSelfAndChildren()
-            .Any(
-                ex =>
-                    ex is TimeoutException or SocketException or AuthenticationException
-                    || ex is HttpRequestException hrex
-                        && IsRetryableStatusCode(hrex.StatusCode ?? HttpStatusCode.OK)
+            .Any(ex =>
+                ex is TimeoutException or SocketException or AuthenticationException
+                || ex is HttpRequestException hrex
+                    && IsRetryableStatusCode(hrex.StatusCode ?? HttpStatusCode.OK)
             );
 
     public static ResiliencePipeline ResiliencePipeline { get; } =

DiscordChatExporter.Gui/App.axaml

@@ -0,0 +1,135 @@
+<Application
+    x:Class="DiscordChatExporter.Gui.App"
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:dialogHostAvalonia="clr-namespace:DialogHostAvalonia;assembly=DialogHost.Avalonia"
+    xmlns:framework="clr-namespace:DiscordChatExporter.Gui.Framework"
+    xmlns:materialAssists="clr-namespace:Material.Styles.Assists;assembly=Material.Styles"
+    xmlns:materialControls="clr-namespace:Material.Styles.Controls;assembly=Material.Styles"
+    xmlns:materialIcons="clr-namespace:Material.Icons.Avalonia;assembly=Material.Icons.Avalonia"
+    xmlns:materialStyles="clr-namespace:Material.Styles.Themes;assembly=Material.Styles">
+    <Application.DataTemplates>
+        <framework:ViewManager />
+    </Application.DataTemplates>
+
+    <Application.Styles>
+        <materialStyles:MaterialTheme />
+        <materialIcons:MaterialIconStyles />
+        <dialogHostAvalonia:DialogHostStyles />
+
+        <!--  Combo box  -->
+        <Style Selector="ComboBox">
+            <Setter Property="FontSize" Value="14" />
+
+            <Style Selector="^ /template/ Panel#PART_RootPanel">
+                <Setter Property="Height" Value="22" />
+            </Style>
+
+            <Style Selector="^ /template/ ToggleButton">
+                <Style Selector="^:checked, ^:unchecked">
+                    <Setter Property="Margin" Value="0" />
+                    <Setter Property="CornerRadius" Value="0" />
+
+                    <Style Selector="^ ContentPresenter#contentPresenter">
+                        <Setter Property="Margin" Value="12,8" />
+                    </Style>
+                </Style>
+            </Style>
+        </Style>
+
+        <!--  Dialog host  -->
+        <Style Selector="dialogHostAvalonia|DialogHost">
+            <Setter Property="DialogMargin" Value="0" />
+        </Style>
+
+        <Style Selector="dialogHostAvalonia|DialogOverlayPopupHost">
+            <Setter Property="Margin" Value="48" />
+        </Style>
+
+        <!--  Snack bar host  -->
+        <Style Selector="materialControls|SnackbarHost">
+            <Setter Property="SnackbarHorizontalAlignment" Value="Stretch" />
+            <Setter Property="VerticalContentAlignment" Value="Center" />
+
+            <Style Selector="^ /template/ ItemsControl#PART_SnackbarHostItemsContainer materialControls|Card">
+                <Setter Property="Background" Value="{DynamicResource MaterialDarkBackgroundBrush}" />
+                <Setter Property="Foreground" Value="{DynamicResource MaterialDarkForegroundBrush}" />
+            </Style>
+
+            <Style Selector="^ /template/ ItemsControl#PART_SnackbarHostItemsContainer Button">
+                <Setter Property="Foreground" Value="{DynamicResource MaterialSecondaryMidBrush}" />
+            </Style>
+        </Style>
+
+        <!--  Progress bar  -->
+        <Style Selector="ProgressBar">
+            <Setter Property="Minimum" Value="0" />
+            <Setter Property="Maximum" Value="1" />
+            <Setter Property="Foreground" Value="{DynamicResource MaterialSecondaryMidBrush}" />
+            <Setter Property="materialAssists:TransitionAssist.DisableTransitions" Value="True" />
+
+            <Style Selector="^:horizontal">
+                <Setter Property="MinHeight" Value="0" />
+            </Style>
+        </Style>
+
+        <!--  Slider  -->
+        <Style Selector="Slider">
+            <Style Selector="^ /template/ ProgressBar#PART_ProgressLayer">
+                <Style Selector="^:horizontal">
+                    <Style Selector="^ Panel#PART_InnerPanel">
+                        <Setter Property="Height" Value="2" />
+
+                        <Style Selector="^ Border#PART_InactiveState">
+                            <Setter Property="Margin" Value="0" />
+                            <Setter Property="Height" Value="2" />
+                        </Style>
+
+                        <Style Selector="^ Border#PART_Indicator">
+                            <Setter Property="Margin" Value="0" />
+                        </Style>
+                    </Style>
+                </Style>
+            </Style>
+
+            <Style Selector="^ /template/ Track#PART_Track">
+                <Style Selector="^:horizontal">
+                    <Setter Property="Margin" Value="4,0" />
+                </Style>
+
+                <Style Selector="^ Border#PART_HoverEffect">
+                    <Setter Property="Width" Value="24" />
+                    <Setter Property="Height" Value="24" />
+                </Style>
+
+                <Style Selector="^ Border#PART_ThumbGrip">
+                    <Setter Property="Width" Value="12" />
+                    <Setter Property="Height" Value="12" />
+                </Style>
+            </Style>
+        </Style>
+
+        <!--  Text box  -->
+        <Style Selector="TextBox">
+            <Setter Property="FontSize" Value="14" />
+        </Style>
+
+        <!--  Toggle button  -->
+        <Style Selector="ToggleButton">
+            <Setter Property="TextElement.FontWeight" Value="Medium" />
+        </Style>
+
+        <!--  Toggle switch  -->
+        <Style Selector="ToggleSwitch">
+            <Setter Property="materialAssists:ToggleSwitchAssist.SwitchThumbOffBackground" Value="{DynamicResource MaterialBackgroundBrush}" />
+        </Style>
+
+        <!--  Tooltip  -->
+        <Style Selector="ToolTip">
+            <Setter Property="TextElement.FontSize" Value="14" />
+            <Setter Property="TextElement.FontWeight" Value="Normal" />
+            <Setter Property="TextElement.FontStyle" Value="Normal" />
+            <Setter Property="TextElement.FontStretch" Value="Normal" />
+        </Style>
+    </Application.Styles>
+</Application>

DiscordChatExporter.Gui/App.axaml.cs

@@ -0,0 +1,110 @@
+using System;
+using System.Net;
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+using Avalonia.Media;
+using Avalonia.Platform;
+using DiscordChatExporter.Gui.Framework;
+using DiscordChatExporter.Gui.Services;
+using DiscordChatExporter.Gui.ViewModels;
+using DiscordChatExporter.Gui.ViewModels.Components;
+using DiscordChatExporter.Gui.ViewModels.Dialogs;
+using DiscordChatExporter.Gui.Views;
+using Material.Styles.Themes;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace DiscordChatExporter.Gui;
+
+public partial class App : Application, IDisposable
+{
+    private readonly ServiceProvider _services;
+    private readonly MainViewModel _mainViewModel;
+
+    public App()
+    {
+        var services = new ServiceCollection();
+
+        // Framework
+        services.AddSingleton<DialogManager>();
+        services.AddSingleton<SnackbarManager>();
+        services.AddSingleton<ViewManager>();
+        services.AddSingleton<ViewModelManager>();
+
+        // Services
+        services.AddSingleton<SettingsService>();
+        services.AddSingleton<UpdateService>();
+
+        // View models
+        services.AddTransient<MainViewModel>();
+        services.AddTransient<DashboardViewModel>();
+        services.AddTransient<ExportSetupViewModel>();
+        services.AddTransient<MessageBoxViewModel>();
+        services.AddTransient<SettingsViewModel>();
+
+        _services = services.BuildServiceProvider(true);
+        _mainViewModel = _services.GetRequiredService<ViewModelManager>().CreateMainViewModel();
+    }
+
+    public override void Initialize()
+    {
+        // Increase maximum concurrent connections
+        ServicePointManager.DefaultConnectionLimit = 20;
+
+        AvaloniaXamlLoader.Load(this);
+    }
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            desktop.MainWindow = new MainView { DataContext = _mainViewModel };
+
+        base.OnFrameworkInitializationCompleted();
+
+        // Set custom theme colors
+        SetDefaultTheme();
+    }
+
+    public void Dispose() => _services.Dispose();
+}
+
+public partial class App
+{
+    public static void SetLightTheme()
+    {
+        if (Current is null)
+            return;
+
+        Current.LocateMaterialTheme<MaterialThemeBase>().CurrentTheme = Theme.Create(
+            Theme.Light,
+            Color.Parse("#343838"),
+            Color.Parse("#F9A825")
+        );
+    }
+
+    public static void SetDarkTheme()
+    {
+        if (Current is null)
+            return;
+
+        Current.LocateMaterialTheme<MaterialThemeBase>().CurrentTheme = Theme.Create(
+            Theme.Dark,
+            Color.Parse("#E8E8E8"),
+            Color.Parse("#F9A825")
+        );
+    }
+
+    public static void SetDefaultTheme()
+    {
+        if (Current is null)
+            return;
+
+        var isDarkModeEnabledByDefault =
+            Current.PlatformSettings?.GetColorValues().ThemeVariant == PlatformThemeVariant.Dark;
+
+        if (isDarkModeEnabledByDefault)
+            SetDarkTheme();
+        else
+            SetLightTheme();
+    }
+}

DiscordChatExporter.Gui/App.xaml

@@ -1,543 +0,0 @@
-<Application
-    x:Class="DiscordChatExporter.Gui.App"
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:local="clr-namespace:DiscordChatExporter.Gui"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
-    xmlns:s="https://github.com/canton7/Stylet">
-    <Application.Resources>
-        <s:ApplicationLoader>
-            <!--  Bootstrapper  -->
-            <s:ApplicationLoader.Bootstrapper>
-                <local:Bootstrapper />
-            </s:ApplicationLoader.Bootstrapper>
-
-            <!--  Merged dictionaries  -->
-            <ResourceDictionary.MergedDictionaries>
-                <!--  Colors are irrelevant because they are overriden in runtime  -->
-                <materialDesign:BundledTheme
-                    BaseTheme="Light"
-                    PrimaryColor="Blue"
-                    SecondaryColor="Blue" />
-
-                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml" />
-            </ResourceDictionary.MergedDictionaries>
-
-            <!--  Styles  -->
-            <Style x:Key="MaterialDesignRoot" TargetType="{x:Type Control}">
-                <Setter Property="FontFamily" Value="{DynamicResource MaterialDesignFont}" />
-                <Setter Property="RenderOptions.BitmapScalingMode" Value="HighQuality" />
-                <Setter Property="SnapsToDevicePixels" Value="True" />
-                <Setter Property="TextElement.FontSize" Value="13" />
-                <Setter Property="TextElement.FontWeight" Value="Regular" />
-                <Setter Property="TextElement.Foreground" Value="{DynamicResource MaterialDesignBody}" />
-                <Setter Property="TextOptions.TextFormattingMode" Value="Ideal" />
-                <Setter Property="TextOptions.TextRenderingMode" Value="Auto" />
-                <Setter Property="UseLayoutRounding" Value="True" />
-            </Style>
-
-            <Style BasedOn="{StaticResource MaterialDesignScrollBarMinimal}" TargetType="{x:Type ScrollBar}" />
-
-            <Style BasedOn="{StaticResource MaterialDesignLinearProgressBar}" TargetType="{x:Type ProgressBar}">
-                <Setter Property="BorderThickness" Value="0" />
-                <Setter Property="Background" Value="Transparent" />
-                <Setter Property="Foreground" Value="{DynamicResource SecondaryHueMidBrush}" />
-                <Setter Property="Height" Value="2" />
-                <Setter Property="Maximum" Value="1" />
-                <Setter Property="Minimum" Value="0" />
-            </Style>
-
-            <Style TargetType="{x:Type Hyperlink}">
-                <Setter Property="TextDecorations" Value="Underline" />
-                <Setter Property="FontWeight" Value="Regular" />
-                <Setter Property="Foreground" Value="{DynamicResource MaterialDesignBody}" />
-
-                <Style.Triggers>
-                    <Trigger Property="IsEnabled" Value="False">
-                        <Setter Property="Foreground" Value="{DynamicResource MaterialDesignCheckBoxDisabled}" />
-                    </Trigger>
-                    <Trigger Property="IsEnabled" Value="True">
-                        <Setter Property="Cursor" Value="Hand" />
-                    </Trigger>
-                    <MultiTrigger>
-                        <MultiTrigger.Conditions>
-                            <Condition Property="IsEnabled" Value="True" />
-                            <Condition Property="IsMouseOver" Value="True" />
-                        </MultiTrigger.Conditions>
-
-                        <Setter Property="Foreground" Value="{DynamicResource SecondaryHueMidBrush}" />
-                    </MultiTrigger>
-                </Style.Triggers>
-            </Style>
-
-            <Style BasedOn="{StaticResource MaterialDesignTextBox}" TargetType="{x:Type TextBox}" />
-
-            <Style BasedOn="{StaticResource MaterialDesignComboBox}" TargetType="{x:Type ComboBox}" />
-
-            <Style BasedOn="{StaticResource MaterialDesignDatePicker}" TargetType="{x:Type DatePicker}" />
-
-            <Style BasedOn="{StaticResource MaterialDesignTimePicker}" TargetType="{x:Type materialDesign:TimePicker}" />
-
-            <Style TargetType="{x:Type materialDesign:Snackbar}">
-                <Setter Property="Background" Value="{DynamicResource MaterialDesignDarkBackground}" />
-                <Setter Property="Foreground" Value="{DynamicResource MaterialDesignDarkForeground}" />
-                <Setter Property="VerticalContentAlignment" Value="Center" />
-                <Setter Property="ActionButtonStyle">
-                    <Setter.Value>
-                        <Style BasedOn="{StaticResource MaterialDesignFlatButton}" TargetType="{x:Type Button}">
-                            <Setter Property="VerticalAlignment" Value="Stretch" />
-                            <Setter Property="HorizontalContentAlignment" Value="Center" />
-                            <Setter Property="VerticalContentAlignment" Value="Center" />
-                            <Setter Property="Height" Value="36" />
-                            <Setter Property="Margin" Value="8,-10,-8,-10" />
-                            <Setter Property="Padding" Value="8" />
-                            <Setter Property="Foreground" Value="{DynamicResource SecondaryHueMidBrush}" />
-                            <Setter Property="materialDesign:RippleAssist.Feedback" Value="{DynamicResource MaterialDesignSnackbarRipple}" />
-                        </Style>
-                    </Setter.Value>
-                </Setter>
-            </Style>
-
-            <Style
-                x:Key="MaterialDesignFlatActionToggleButton"
-                BasedOn="{StaticResource MaterialDesignActionToggleButton}"
-                TargetType="{x:Type ToggleButton}">
-                <Setter Property="Background" Value="Transparent" />
-                <Setter Property="Foreground" Value="{DynamicResource PrimaryHueMidBrush}" />
-
-                <Style.Triggers>
-                    <Trigger Property="IsMouseOver" Value="True">
-                        <Setter Property="Background" Value="{DynamicResource MaterialDesignFlatButtonClick}" />
-                        <Setter Property="BorderBrush" Value="{DynamicResource MaterialDesignFlatButtonClick}" />
-                    </Trigger>
-                </Style.Triggers>
-            </Style>
-
-            <Style BasedOn="{StaticResource MaterialDesignContextMenu}" TargetType="{x:Type ContextMenu}">
-                <Setter Property="Background" Value="{DynamicResource MaterialDesignPaper}" />
-            </Style>
-
-            <!--  Default MD Expander is incredibly slow (https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/issues/1307)  -->
-            <Style BasedOn="{StaticResource MaterialDesignExpander}" TargetType="{x:Type Expander}">
-                <Setter Property="Template">
-                    <Setter.Value>
-                        <ControlTemplate TargetType="Expander">
-                            <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
-                                <DockPanel Background="{TemplateBinding Background}">
-                                    <ToggleButton
-                                        Name="HeaderSite"
-                                        BorderThickness="0"
-                                        Content="{TemplateBinding Header}"
-                                        ContentStringFormat="{TemplateBinding HeaderStringFormat}"
-                                        ContentTemplate="{TemplateBinding HeaderTemplate}"
-                                        ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
-                                        Cursor="Hand"
-                                        DockPanel.Dock="Top"
-                                        Focusable="False"
-                                        Foreground="{TemplateBinding Foreground}"
-                                        IsChecked="{Binding Path=IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}"
-                                        IsTabStop="False"
-                                        Opacity=".87"
-                                        Style="{StaticResource MaterialDesignExpanderToggleButton}"
-                                        TextElement.FontSize="15" />
-                                    <Border
-                                        Name="ContentSite"
-                                        DockPanel.Dock="Bottom"
-                                        Visibility="Collapsed">
-                                        <StackPanel
-                                            Name="ContentPanel"
-                                            Margin="{TemplateBinding Padding}"
-                                            HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
-                                            VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
-                                            <ContentPresenter
-                                                Name="PART_Content"
-                                                ContentStringFormat="{TemplateBinding ContentStringFormat}"
-                                                ContentTemplate="{TemplateBinding ContentTemplate}"
-                                                ContentTemplateSelector="{TemplateBinding ContentTemplateSelector}"
-                                                Focusable="False" />
-                                        </StackPanel>
-                                    </Border>
-                                </DockPanel>
-                            </Border>
-                            <ControlTemplate.Triggers>
-                                <Trigger Property="IsExpanded" Value="true">
-                                    <Setter TargetName="ContentSite" Property="Visibility" Value="Visible" />
-                                </Trigger>
-                                <Trigger Property="ExpandDirection" Value="Right">
-                                    <Setter TargetName="HeaderSite" Property="DockPanel.Dock" Value="Left" />
-                                    <Setter TargetName="ContentSite" Property="DockPanel.Dock" Value="Right" />
-                                    <Setter TargetName="ContentPanel" Property="Orientation" Value="Horizontal" />
-                                    <Setter TargetName="ContentPanel" Property="Height" Value="Auto" />
-                                    <Setter TargetName="HeaderSite" Property="Style" Value="{StaticResource MaterialDesignVerticalHeaderStyle}" />
-                                </Trigger>
-
-                                <Trigger Property="ExpandDirection" Value="Left">
-                                    <Setter TargetName="HeaderSite" Property="DockPanel.Dock" Value="Right" />
-                                    <Setter TargetName="ContentSite" Property="DockPanel.Dock" Value="Left" />
-                                    <Setter TargetName="ContentPanel" Property="Orientation" Value="Horizontal" />
-                                    <Setter TargetName="ContentPanel" Property="Height" Value="Auto" />
-                                    <Setter TargetName="HeaderSite" Property="Style" Value="{StaticResource MaterialDesignVerticalHeaderStyle}" />
-                                </Trigger>
-
-                                <Trigger Property="ExpandDirection" Value="Up">
-                                    <Setter TargetName="HeaderSite" Property="DockPanel.Dock" Value="Bottom" />
-                                    <Setter TargetName="ContentSite" Property="DockPanel.Dock" Value="Top" />
-                                    <Setter TargetName="ContentPanel" Property="Orientation" Value="Vertical" />
-                                    <Setter TargetName="ContentPanel" Property="Width" Value="Auto" />
-                                    <Setter TargetName="HeaderSite" Property="Style" Value="{StaticResource MaterialDesignHorizontalHeaderStyle}" />
-                                </Trigger>
-
-                                <Trigger Property="ExpandDirection" Value="Down">
-                                    <Setter TargetName="HeaderSite" Property="DockPanel.Dock" Value="Top" />
-                                    <Setter TargetName="ContentSite" Property="DockPanel.Dock" Value="Bottom" />
-                                    <Setter TargetName="ContentPanel" Property="Orientation" Value="Vertical" />
-                                    <Setter TargetName="ContentPanel" Property="Width" Value="Auto" />
-                                    <Setter TargetName="HeaderSite" Property="Style" Value="{StaticResource MaterialDesignHorizontalHeaderStyle}" />
-                                </Trigger>
-                            </ControlTemplate.Triggers>
-                        </ControlTemplate>
-                    </Setter.Value>
-                </Setter>
-            </Style>
-
-            <!--  Use old MD style for slider, because the new one is too huge  -->
-            <Style x:Key="MaterialDesignHorizontalTrackRepeatButton" TargetType="{x:Type RepeatButton}">
-                <Setter Property="OverridesDefaultStyle" Value="true" />
-                <Setter Property="Background" Value="Transparent" />
-                <Setter Property="Focusable" Value="false" />
-                <Setter Property="IsTabStop" Value="false" />
-                <Setter Property="Template">
-                    <Setter.Value>
-                        <ControlTemplate TargetType="{x:Type RepeatButton}">
-                            <Canvas
-                                Width="{TemplateBinding Width}"
-                                Height="{TemplateBinding Height}"
-                                Background="Transparent">
-                                <Rectangle
-                                    x:Name="PART_SelectionRange"
-                                    Canvas.Top="8"
-                                    Width="{TemplateBinding ActualWidth}"
-                                    Height="2.0"
-                                    Fill="{TemplateBinding Background}" />
-                            </Canvas>
-                        </ControlTemplate>
-                    </Setter.Value>
-                </Setter>
-            </Style>
-
-            <Style x:Key="MaterialDesignVerticalTrackRepeatButton" TargetType="{x:Type RepeatButton}">
-                <Setter Property="OverridesDefaultStyle" Value="true" />
-                <Setter Property="Background" Value="Transparent" />
-                <Setter Property="Focusable" Value="false" />
-                <Setter Property="IsTabStop" Value="false" />
-                <Setter Property="Template">
-                    <Setter.Value>
-                        <ControlTemplate TargetType="{x:Type RepeatButton}">
-                            <Canvas
-                                Width="{TemplateBinding Width}"
-                                Height="{TemplateBinding Height}"
-                                Background="Transparent">
-                                <Rectangle
-                                    x:Name="PART_SelectionRange"
-                                    Canvas.Left="8"
-                                    Width="2.0"
-                                    Height="{TemplateBinding ActualHeight}"
-                                    Fill="{TemplateBinding Background}" />
-                            </Canvas>
-                        </ControlTemplate>
-                    </Setter.Value>
-                </Setter>
-            </Style>
-
-            <ControlTemplate x:Key="MaterialDesignSliderThumb" TargetType="{x:Type Thumb}">
-                <Grid
-                    HorizontalAlignment="Center"
-                    VerticalAlignment="Center"
-                    UseLayoutRounding="True">
-                    <Ellipse
-                        x:Name="shadow"
-                        Width="24"
-                        Height="24"
-                        Margin="-12"
-                        Fill="{TemplateBinding Foreground}"
-                        Opacity=".0"
-                        UseLayoutRounding="True" />
-                    <Ellipse
-                        x:Name="grip"
-                        Width="12"
-                        Height="12"
-                        Fill="{TemplateBinding Foreground}"
-                        RenderTransformOrigin=".5,.5"
-                        UseLayoutRounding="True">
-                        <Ellipse.RenderTransform>
-                            <ScaleTransform ScaleX="1" ScaleY="1" />
-                        </Ellipse.RenderTransform>
-                    </Ellipse>
-                </Grid>
-                <ControlTemplate.Triggers>
-                    <Trigger Property="IsMouseOver" Value="true">
-                        <Trigger.EnterActions>
-                            <BeginStoryboard>
-                                <Storyboard>
-                                    <DoubleAnimation
-                                        Storyboard.TargetName="shadow"
-                                        Storyboard.TargetProperty="Opacity"
-                                        To=".26"
-                                        Duration="0:0:0.2" />
-                                </Storyboard>
-                            </BeginStoryboard>
-                        </Trigger.EnterActions>
-                        <Trigger.ExitActions>
-                            <BeginStoryboard>
-                                <Storyboard>
-                                    <DoubleAnimation
-                                        Storyboard.TargetName="shadow"
-                                        Storyboard.TargetProperty="Opacity"
-                                        To=".0"
-                                        Duration="0:0:0.2" />
-                                </Storyboard>
-                            </BeginStoryboard>
-                        </Trigger.ExitActions>
-                    </Trigger>
-                    <Trigger Property="IsDragging" Value="true">
-                        <Trigger.EnterActions>
-                            <BeginStoryboard>
-                                <Storyboard>
-                                    <Storyboard>
-                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetName="grip" Storyboard.TargetProperty="RenderTransform.ScaleX">
-                                            <EasingDoubleKeyFrame KeyTime="0:0:0" Value="1" />
-                                            <EasingDoubleKeyFrame KeyTime="0:0:0.1" Value="1.5">
-                                                <EasingDoubleKeyFrame.EasingFunction>
-                                                    <SineEase EasingMode="EaseInOut" />
-                                                </EasingDoubleKeyFrame.EasingFunction>
-                                            </EasingDoubleKeyFrame>
-                                        </DoubleAnimationUsingKeyFrames>
-                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetName="grip" Storyboard.TargetProperty="RenderTransform.ScaleY">
-                                            <EasingDoubleKeyFrame KeyTime="0:0:0" Value="1" />
-                                            <EasingDoubleKeyFrame KeyTime="0:0:0.1" Value="1.5">
-                                                <EasingDoubleKeyFrame.EasingFunction>
-                                                    <SineEase EasingMode="EaseInOut" />
-                                                </EasingDoubleKeyFrame.EasingFunction>
-                                            </EasingDoubleKeyFrame>
-                                        </DoubleAnimationUsingKeyFrames>
-                                    </Storyboard>
-                                </Storyboard>
-                            </BeginStoryboard>
-                        </Trigger.EnterActions>
-                        <Trigger.ExitActions>
-                            <BeginStoryboard>
-                                <Storyboard>
-                                    <Storyboard>
-                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetName="grip" Storyboard.TargetProperty="RenderTransform.ScaleX">
-                                            <EasingDoubleKeyFrame KeyTime="0:0:0" Value="1.5" />
-                                            <EasingDoubleKeyFrame KeyTime="0:0:0.1" Value="1">
-                                                <EasingDoubleKeyFrame.EasingFunction>
-                                                    <SineEase EasingMode="EaseInOut" />
-                                                </EasingDoubleKeyFrame.EasingFunction>
-                                            </EasingDoubleKeyFrame>
-                                        </DoubleAnimationUsingKeyFrames>
-                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetName="grip" Storyboard.TargetProperty="RenderTransform.ScaleY">
-                                            <EasingDoubleKeyFrame KeyTime="0:0:0" Value="1.5" />
-                                            <EasingDoubleKeyFrame KeyTime="0:0:0.1" Value="1">
-                                                <EasingDoubleKeyFrame.EasingFunction>
-                                                    <SineEase EasingMode="EaseInOut" />
-                                                </EasingDoubleKeyFrame.EasingFunction>
-                                            </EasingDoubleKeyFrame>
-                                        </DoubleAnimationUsingKeyFrames>
-                                    </Storyboard>
-                                </Storyboard>
-                            </BeginStoryboard>
-                        </Trigger.ExitActions>
-                    </Trigger>
-                    <Trigger Property="IsEnabled" Value="false">
-                        <Setter TargetName="grip" Property="Fill" Value="{DynamicResource MaterialDesignCheckBoxDisabled}" />
-                        <Setter TargetName="grip" Property="Stroke" Value="{DynamicResource MaterialDesignCheckBoxDisabled}" />
-                    </Trigger>
-                </ControlTemplate.Triggers>
-            </ControlTemplate>
-
-            <ControlTemplate x:Key="MaterialDesignSliderHorizontal" TargetType="{x:Type Slider}">
-                <Border
-                    x:Name="border"
-                    Background="{TemplateBinding Background}"
-                    BorderBrush="{TemplateBinding BorderBrush}"
-                    BorderThickness="{TemplateBinding BorderThickness}"
-                    SnapsToDevicePixels="True">
-                    <Grid>
-                        <Grid.RowDefinitions>
-                            <RowDefinition Height="Auto" />
-                            <RowDefinition Height="Auto" MinHeight="{TemplateBinding MinHeight}" />
-                            <RowDefinition Height="Auto" />
-                        </Grid.RowDefinitions>
-                        <TickBar
-                            x:Name="TopTick"
-                            Grid.Row="0"
-                            Height="4"
-                            Margin="0,0,0,2"
-                            Fill="{TemplateBinding Foreground}"
-                            Placement="Top"
-                            Visibility="Collapsed" />
-                        <TickBar
-                            x:Name="BottomTick"
-                            Grid.Row="2"
-                            Height="4"
-                            Margin="0,2,0,0"
-                            Fill="{TemplateBinding Foreground}"
-                            Placement="Bottom"
-                            Visibility="Collapsed" />
-                        <Rectangle
-                            x:Name="PART_SelectionRange"
-                            Grid.Row="1"
-                            Height="4.0"
-                            Fill="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"
-                            Visibility="Hidden" />
-                        <Track
-                            x:Name="PART_Track"
-                            Grid.Row="1"
-                            OpacityMask="{x:Null}">
-                            <Track.DecreaseRepeatButton>
-                                <RepeatButton
-                                    Background="{TemplateBinding Foreground}"
-                                    Command="{x:Static Slider.DecreaseLarge}"
-                                    Style="{StaticResource MaterialDesignHorizontalTrackRepeatButton}" />
-                            </Track.DecreaseRepeatButton>
-                            <Track.IncreaseRepeatButton>
-                                <RepeatButton
-                                    x:Name="IncreaseRepeatButton"
-                                    Background="{DynamicResource MaterialDesignCheckBoxOff}"
-                                    Command="{x:Static Slider.IncreaseLarge}"
-                                    Style="{StaticResource MaterialDesignHorizontalTrackRepeatButton}" />
-                            </Track.IncreaseRepeatButton>
-                            <Track.Thumb>
-                                <Thumb
-                                    x:Name="Thumb"
-                                    Width="12"
-                                    Height="18"
-                                    VerticalAlignment="Center"
-                                    Focusable="False"
-                                    OverridesDefaultStyle="True"
-                                    Template="{StaticResource MaterialDesignSliderThumb}" />
-                            </Track.Thumb>
-                        </Track>
-                    </Grid>
-                </Border>
-                <ControlTemplate.Triggers>
-                    <Trigger Property="TickPlacement" Value="TopLeft">
-                        <Setter TargetName="TopTick" Property="Visibility" Value="Visible" />
-                    </Trigger>
-                    <Trigger Property="TickPlacement" Value="BottomRight">
-                        <Setter TargetName="BottomTick" Property="Visibility" Value="Visible" />
-                    </Trigger>
-                    <Trigger Property="TickPlacement" Value="Both">
-                        <Setter TargetName="TopTick" Property="Visibility" Value="Visible" />
-                        <Setter TargetName="BottomTick" Property="Visibility" Value="Visible" />
-                    </Trigger>
-                    <Trigger Property="IsSelectionRangeEnabled" Value="true">
-                        <Setter TargetName="PART_SelectionRange" Property="Visibility" Value="Visible" />
-                    </Trigger>
-                    <Trigger Property="IsEnabled" Value="False">
-                        <Setter TargetName="IncreaseRepeatButton" Property="Background" Value="{DynamicResource MaterialDesignCheckBoxDisabled}" />
-                    </Trigger>
-                </ControlTemplate.Triggers>
-            </ControlTemplate>
-
-            <ControlTemplate x:Key="MaterialDesignSliderVertical" TargetType="{x:Type Slider}">
-                <Border
-                    x:Name="border"
-                    Background="{TemplateBinding Background}"
-                    BorderBrush="{TemplateBinding BorderBrush}"
-                    BorderThickness="{TemplateBinding BorderThickness}"
-                    SnapsToDevicePixels="True">
-                    <Grid>
-                        <Grid.ColumnDefinitions>
-                            <ColumnDefinition Width="Auto" />
-                            <ColumnDefinition Width="Auto" MinWidth="{TemplateBinding MinWidth}" />
-                            <ColumnDefinition Width="Auto" />
-                        </Grid.ColumnDefinitions>
-                        <TickBar
-                            x:Name="TopTick"
-                            Grid.Column="0"
-                            Width="4"
-                            Margin="0,0,2,0"
-                            Fill="{TemplateBinding Foreground}"
-                            Placement="Left"
-                            Visibility="Collapsed" />
-                        <TickBar
-                            x:Name="BottomTick"
-                            Grid.Column="2"
-                            Width="4"
-                            Margin="2,0,0,0"
-                            Fill="{TemplateBinding Foreground}"
-                            Placement="Right"
-                            Visibility="Collapsed" />
-                        <Rectangle
-                            x:Name="PART_SelectionRange"
-                            Grid.Column="1"
-                            Height="4.0"
-                            Fill="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"
-                            Visibility="Hidden" />
-                        <Track x:Name="PART_Track" Grid.Column="1">
-                            <Track.DecreaseRepeatButton>
-                                <RepeatButton
-                                    Background="{TemplateBinding Foreground}"
-                                    Command="{x:Static Slider.DecreaseLarge}"
-                                    Style="{StaticResource MaterialDesignVerticalTrackRepeatButton}" />
-                            </Track.DecreaseRepeatButton>
-                            <Track.IncreaseRepeatButton>
-                                <RepeatButton
-                                    x:Name="IncreaseRepeatButton"
-                                    Background="{DynamicResource MaterialDesignCheckBoxOff}"
-                                    Command="{x:Static Slider.IncreaseLarge}"
-                                    Style="{StaticResource MaterialDesignVerticalTrackRepeatButton}" />
-                            </Track.IncreaseRepeatButton>
-                            <Track.Thumb>
-                                <Thumb
-                                    x:Name="Thumb"
-                                    Width="18"
-                                    Height="12"
-                                    VerticalAlignment="Top"
-                                    Focusable="False"
-                                    OverridesDefaultStyle="True"
-                                    Template="{StaticResource MaterialDesignSliderThumb}" />
-                            </Track.Thumb>
-                        </Track>
-                    </Grid>
-                </Border>
-                <ControlTemplate.Triggers>
-                    <Trigger Property="TickPlacement" Value="TopLeft">
-                        <Setter TargetName="TopTick" Property="Visibility" Value="Visible" />
-                    </Trigger>
-                    <Trigger Property="TickPlacement" Value="BottomRight">
-                        <Setter TargetName="BottomTick" Property="Visibility" Value="Visible" />
-                    </Trigger>
-                    <Trigger Property="TickPlacement" Value="Both">
-                        <Setter TargetName="TopTick" Property="Visibility" Value="Visible" />
-                        <Setter TargetName="BottomTick" Property="Visibility" Value="Visible" />
-                    </Trigger>
-                    <Trigger Property="IsSelectionRangeEnabled" Value="true">
-                        <Setter TargetName="PART_SelectionRange" Property="Visibility" Value="Visible" />
-                    </Trigger>
-                    <Trigger Property="IsEnabled" Value="False">
-                        <Setter TargetName="IncreaseRepeatButton" Property="Background" Value="{DynamicResource MaterialDesignCheckBoxDisabled}" />
-                    </Trigger>
-                </ControlTemplate.Triggers>
-            </ControlTemplate>
-
-            <Style x:Key="MaterialDesignThinSlider" TargetType="{x:Type Slider}">
-                <Setter Property="Stylus.IsPressAndHoldEnabled" Value="false" />
-                <Setter Property="Background" Value="{x:Null}" />
-                <Setter Property="BorderBrush" Value="Transparent" />
-                <Setter Property="Foreground" Value="{DynamicResource PrimaryHueMidBrush}" />
-                <Setter Property="Template" Value="{StaticResource MaterialDesignSliderHorizontal}" />
-                <Style.Triggers>
-                    <Trigger Property="Orientation" Value="Vertical">
-                        <Setter Property="Template" Value="{StaticResource MaterialDesignSliderVertical}" />
-                    </Trigger>
-                    <Trigger Property="IsEnabled" Value="False">
-                        <Setter Property="Foreground" Value="{DynamicResource MaterialDesignCheckBoxDisabled}" />
-                    </Trigger>
-                </Style.Triggers>
-            </Style>
-        </s:ApplicationLoader>
-    </Application.Resources>
-</Application>

DiscordChatExporter.Gui/App.xaml.cs

@@ -1,52 +0,0 @@
-using System;
-using System.Reflection;
-using DiscordChatExporter.Gui.Utils;
-using MaterialDesignThemes.Wpf;
-
-namespace DiscordChatExporter.Gui;
-
-public partial class App
-{
-    private static Assembly Assembly { get; } = typeof(App).Assembly;
-
-    public static string Name { get; } = Assembly.GetName().Name!;
-
-    public static Version Version { get; } = Assembly.GetName().Version!;
-
-    public static string VersionString { get; } = Version.ToString(3);
-
-    public static string ProjectUrl { get; } = "https://github.com/Tyrrrz/DiscordChatExporter";
-
-    public static string LatestReleaseUrl { get; } = ProjectUrl + "/releases/latest";
-
-    public static string DocumentationUrl { get; } = ProjectUrl + "/tree/master/.docs";
-}
-
-public partial class App
-{
-    private static Theme LightTheme { get; } =
-        Theme.Create(
-            new MaterialDesignLightTheme(),
-            MediaColor.FromHex("#343838"),
-            MediaColor.FromHex("#F9A825")
-        );
-
-    private static Theme DarkTheme { get; } =
-        Theme.Create(
-            new MaterialDesignDarkTheme(),
-            MediaColor.FromHex("#E8E8E8"),
-            MediaColor.FromHex("#F9A825")
-        );
-
-    public static void SetLightTheme()
-    {
-        var paletteHelper = new PaletteHelper();
-        paletteHelper.SetTheme(LightTheme);
-    }
-
-    public static void SetDarkTheme()
-    {
-        var paletteHelper = new PaletteHelper();
-        paletteHelper.SetTheme(DarkTheme);
-    }
-}

DiscordChatExporter.Gui/Behaviors/ChannelMultiSelectionListBoxBehavior.cs

@@ -1,5 +0,0 @@
-using DiscordChatExporter.Core.Discord.Data;
-
-namespace DiscordChatExporter.Gui.Behaviors;
-
-public class ChannelMultiSelectionListBoxBehavior : MultiSelectionListBoxBehavior<Channel>;

DiscordChatExporter.Gui/Behaviors/MultiSelectionListBoxBehavior.cs

@@ -1,104 +0,0 @@
-using System.Collections;
-using System.Collections.Specialized;
-using System.Linq;
-using System.Windows;
-using System.Windows.Controls;
-using Microsoft.Xaml.Behaviors;
-
-namespace DiscordChatExporter.Gui.Behaviors;
-
-public class MultiSelectionListBoxBehavior<T> : Behavior<ListBox>
-{
-    public static readonly DependencyProperty SelectedItemsProperty = DependencyProperty.Register(
-        nameof(SelectedItems),
-        typeof(IList),
-        typeof(MultiSelectionListBoxBehavior<T>),
-        new FrameworkPropertyMetadata(
-            null,
-            FrameworkPropertyMetadataOptions.BindsTwoWayByDefault,
-            OnSelectedItemsChanged
-        )
-    );
-
-    private static void OnSelectedItemsChanged(
-        DependencyObject sender,
-        DependencyPropertyChangedEventArgs args
-    )
-    {
-        var behavior = (MultiSelectionListBoxBehavior<T>)sender;
-        if (behavior._modelHandled)
-            return;
-
-        if (behavior.AssociatedObject is null)
-            return;
-
-        behavior._modelHandled = true;
-        behavior.SelectItems();
-        behavior._modelHandled = false;
-    }
-
-    private bool _viewHandled;
-    private bool _modelHandled;
-
-    public IList? SelectedItems
-    {
-        get => (IList?)GetValue(SelectedItemsProperty);
-        set => SetValue(SelectedItemsProperty, value);
-    }
-
-    // Propagate selected items from the model to the view
-    private void SelectItems()
-    {
-        _viewHandled = true;
-
-        AssociatedObject.SelectedItems.Clear();
-        if (SelectedItems is not null)
-        {
-            foreach (var item in SelectedItems)
-                AssociatedObject.SelectedItems.Add(item);
-        }
-
-        _viewHandled = false;
-    }
-
-    // Propagate selected items from the view to the model
-    private void OnListBoxSelectionChanged(object? sender, SelectionChangedEventArgs args)
-    {
-        if (_viewHandled)
-            return;
-        if (AssociatedObject.Items.SourceCollection is null)
-            return;
-
-        SelectedItems = AssociatedObject.SelectedItems.Cast<T>().ToArray();
-    }
-
-    private void OnListBoxItemsChanged(object? sender, NotifyCollectionChangedEventArgs args)
-    {
-        if (_viewHandled)
-            return;
-        if (AssociatedObject.Items.SourceCollection is null)
-            return;
-        SelectItems();
-    }
-
-    protected override void OnAttached()
-    {
-        base.OnAttached();
-
-        AssociatedObject.SelectionChanged += OnListBoxSelectionChanged;
-        ((INotifyCollectionChanged)AssociatedObject.Items).CollectionChanged +=
-            OnListBoxItemsChanged;
-    }
-
-    protected override void OnDetaching()
-    {
-        base.OnDetaching();
-
-        if (AssociatedObject is not null)
-        {
-            AssociatedObject.SelectionChanged -= OnListBoxSelectionChanged;
-            ((INotifyCollectionChanged)AssociatedObject.Items).CollectionChanged -=
-                OnListBoxItemsChanged;
-        }
-    }
-}

DiscordChatExporter.Gui/Bootstrapper.cs

@@ -1,45 +0,0 @@
-using DiscordChatExporter.Gui.Services;
-using DiscordChatExporter.Gui.ViewModels;
-using DiscordChatExporter.Gui.ViewModels.Framework;
-using Stylet;
-using StyletIoC;
-#if !DEBUG
-using System.Windows;
-using System.Windows.Threading;
-#endif
-
-namespace DiscordChatExporter.Gui;
-
-public class Bootstrapper : Bootstrapper<RootViewModel>
-{
-    protected override void OnStart()
-    {
-        base.OnStart();
-
-        // Set the default theme.
-        // Preferred theme will be set later, once the settings are loaded.
-        App.SetLightTheme();
-    }
-
-    protected override void ConfigureIoC(IStyletIoCBuilder builder)
-    {
-        base.ConfigureIoC(builder);
-
-        builder.Bind<SettingsService>().ToSelf().InSingletonScope();
-        builder.Bind<IViewModelFactory>().ToAbstractFactory();
-    }
-
-#if !DEBUG
-    protected override void OnUnhandledException(DispatcherUnhandledExceptionEventArgs args)
-    {
-        base.OnUnhandledException(args);
-
-        MessageBox.Show(
-            args.Exception.ToString(),
-            "Error occured",
-            MessageBoxButton.OK,
-            MessageBoxImage.Error
-        );
-    }
-#endif
-}

DiscordChatExporter.Gui/Converters/ChannelToGroupKeyConverter.cs

@@ -1,35 +0,0 @@
-using System;
-using System.Globalization;
-using System.Windows.Data;
-using DiscordChatExporter.Core.Discord.Data;
-
-namespace DiscordChatExporter.Gui.Converters;
-
-[ValueConversion(typeof(Channel), typeof(string))]
-public class ChannelToGroupKeyConverter : IValueConverter
-{
-    public static ChannelToGroupKeyConverter Instance { get; } = new();
-
-    public object? Convert(
-        object? value,
-        Type targetType,
-        object? parameter,
-        CultureInfo culture
-    ) =>
-        value switch
-        {
-            Channel { IsThread: true, Parent: not null } channel
-                => $"Threads in #{channel.Parent.Name}",
-
-            Channel channel => channel.Parent?.Name ?? "???",
-
-            _ => null
-        };
-
-    public object ConvertBack(
-        object? value,
-        Type targetType,
-        object? parameter,
-        CultureInfo culture
-    ) => throw new NotSupportedException();
-}

DiscordChatExporter.Gui/Converters/ChannelToHierarchicalNameStringConverter.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Globalization;
+using Avalonia.Data.Converters;
+using DiscordChatExporter.Core.Discord.Data;
+
+namespace DiscordChatExporter.Gui.Converters;
+
+public class ChannelToHierarchicalNameStringConverter : IValueConverter
+{
+    public static ChannelToHierarchicalNameStringConverter Instance { get; } = new();
+
+    public object? Convert(
+        object? value,
+        Type targetType,
+        object? parameter,
+        CultureInfo culture
+    ) => value is Channel channel ? channel.GetHierarchicalName() : null;
+
+    public object ConvertBack(
+        object? value,
+        Type targetType,
+        object? parameter,
+        CultureInfo culture
+    ) => throw new NotSupportedException();
+}

DiscordChatExporter.Gui/Converters/DateTimeOffsetToDateTimeConverter.cs

@@ -1,31 +0,0 @@
-using System;
-using System.Globalization;
-using System.Windows.Data;
-
-namespace DiscordChatExporter.Gui.Converters;
-
-[ValueConversion(typeof(DateTimeOffset?), typeof(DateTime?))]
-public class DateTimeOffsetToDateTimeConverter : IValueConverter
-{
-    public static DateTimeOffsetToDateTimeConverter Instance { get; } = new();
-
-    public object? Convert(
-        object? value,
-        Type targetType,
-        object? parameter,
-        CultureInfo culture
-    ) =>
-        value is DateTimeOffset dateTimeOffsetValue
-            ? dateTimeOffsetValue.DateTime
-            : default(DateTime?);
-
-    public object? ConvertBack(
-        object? value,
-        Type targetType,
-        object? parameter,
-        CultureInfo culture
-    ) =>
-        value is DateTime dateTimeValue
-            ? new DateTimeOffset(dateTimeValue)
-            : default(DateTimeOffset?);
-}

DiscordChatExporter.Gui/Converters/ExportFormatToStringConverter.cs

@@ -1,11 +1,10 @@
 using System;
 using System.Globalization;
-using System.Windows.Data;
+using Avalonia.Data.Converters;
 using DiscordChatExporter.Core.Exporting;
 
 namespace DiscordChatExporter.Gui.Converters;
 
-[ValueConversion(typeof(ExportFormat), typeof(string))]
 public class ExportFormatToStringConverter : IValueConverter
 {
     public static ExportFormatToStringConverter Instance { get; } = new();
@@ -15,7 +14,7 @@ public class ExportFormatToStringConverter : IValueConverter
         Type targetType,
         object? parameter,
         CultureInfo culture
-    ) => value is ExportFormat exportFormatValue ? exportFormatValue.GetDisplayName() : default;
+    ) => value is ExportFormat format ? format.GetDisplayName() : default;
 
     public object ConvertBack(
         object? value,

DiscordChatExporter.Gui/Converters/InverseBoolConverter.cs

@@ -1,21 +0,0 @@
-using System;
-using System.Globalization;
-using System.Windows.Data;
-
-namespace DiscordChatExporter.Gui.Converters;
-
-[ValueConversion(typeof(bool), typeof(bool))]
-public class InverseBoolConverter : IValueConverter
-{
-    public static InverseBoolConverter Instance { get; } = new();
-
-    public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture) =>
-        value is false;
-
-    public object ConvertBack(
-        object? value,
-        Type targetType,
-        object? parameter,
-        CultureInfo culture
-    ) => value is false;
-}

DiscordChatExporter.Gui/Converters/LocaleToDisplayNameStringConverter.cs

@@ -1,13 +1,12 @@
 using System;
 using System.Globalization;
-using System.Windows.Data;
+using Avalonia.Data.Converters;
 
 namespace DiscordChatExporter.Gui.Converters;
 
-[ValueConversion(typeof(string), typeof(string))]
-public class LocaleToDisplayNameConverter : IValueConverter
+public class LocaleToDisplayNameStringConverter : IValueConverter
 {
-    public static LocaleToDisplayNameConverter Instance { get; } = new();
+    public static LocaleToDisplayNameStringConverter Instance { get; } = new();
 
     public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture) =>
         value is string locale && !string.IsNullOrWhiteSpace(locale)

DiscordChatExporter.Gui/Converters/SnowflakeToTimestampStringConverter.cs

@@ -1,21 +1,20 @@
 using System;
 using System.Globalization;
-using System.Windows.Data;
+using Avalonia.Data.Converters;
 using DiscordChatExporter.Core.Discord;
 
 namespace DiscordChatExporter.Gui.Converters;
 
-[ValueConversion(typeof(Snowflake?), typeof(DateTimeOffset?))]
-public class SnowflakeToDateTimeOffsetConverter : IValueConverter
+public class SnowflakeToTimestampStringConverter : IValueConverter
 {
-    public static SnowflakeToDateTimeOffsetConverter Instance { get; } = new();
+    public static SnowflakeToTimestampStringConverter Instance { get; } = new();
 
     public object? Convert(
         object? value,
         Type targetType,
         object? parameter,
         CultureInfo culture
-    ) => value is Snowflake snowflake ? snowflake.ToDate() : null;
+    ) => value is Snowflake snowflake ? snowflake.ToDate().ToString("g", culture) : null;
 
     public object ConvertBack(
         object? value,

DiscordChatExporter.Gui/Converters/TimeSpanToDateTimeConverter.cs

@@ -1,25 +0,0 @@
-using System;
-using System.Globalization;
-using System.Windows.Data;
-
-namespace DiscordChatExporter.Gui.Converters;
-
-[ValueConversion(typeof(TimeSpan?), typeof(DateTime?))]
-public class TimeSpanToDateTimeConverter : IValueConverter
-{
-    public static TimeSpanToDateTimeConverter Instance { get; } = new();
-
-    public object? Convert(
-        object? value,
-        Type targetType,
-        object? parameter,
-        CultureInfo culture
-    ) => value is TimeSpan timeSpanValue ? DateTime.Today.Add(timeSpanValue) : default(DateTime?);
-
-    public object? ConvertBack(
-        object? value,
-        Type targetType,
-        object? parameter,
-        CultureInfo culture
-    ) => value is DateTime dateTimeValue ? dateTimeValue.TimeOfDay : default(TimeSpan?);
-}

DiscordChatExporter.Gui/DiscordChatExporter.Gui.csproj

@@ -2,28 +2,30 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>$(TargetFramework)-windows</TargetFramework>
     <AssemblyName>DiscordChatExporter</AssemblyName>
-    <UseWPF>true</UseWPF>
-    <ApplicationIcon>../favicon.ico</ApplicationIcon>
+    <ApplicationIcon>..\favicon.ico</ApplicationIcon>
   </PropertyGroup>
 
   <ItemGroup>
-    <Resource Include="../favicon.ico" />
+    <AvaloniaResource Include="..\favicon.ico" Link="favicon.ico" />
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="AsyncImageLoader.Avalonia" Version="3.2.1" />
+    <PackageReference Include="Avalonia" Version="11.0.10" />
+    <PackageReference Include="Avalonia.Desktop" Version="11.0.10" />
+    <PackageReference Include="Avalonia.Diagnostics" Version="11.0.10" Condition="'$(Configuration)' == 'Debug'" />
     <PackageReference Include="Cogwheel" Version="2.0.4" />
-    <PackageReference Include="CSharpier.MsBuild" Version="0.26.7" PrivateAssets="all" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
+    <PackageReference Include="CSharpier.MsBuild" Version="0.28.2" PrivateAssets="all" />
     <PackageReference Include="Deorcify" Version="1.0.2" PrivateAssets="all" />
-    <PackageReference Include="DotnetRuntimeBootstrapper" Version="2.5.2" PrivateAssets="all" />
+    <PackageReference Include="DialogHost.Avalonia" Version="0.7.7" />
+    <PackageReference Include="DotnetRuntimeBootstrapper" Version="2.5.4" PrivateAssets="all" />
     <PackageReference Include="Gress" Version="2.1.1" />
-    <PackageReference Include="MaterialDesignColors" Version="2.1.4" />
-    <PackageReference Include="MaterialDesignThemes" Version="4.9.0" />
-    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.77" />
-    <PackageReference Include="Onova" Version="2.6.10" />
-    <PackageReference Include="PropertyChanged.Fody" Version="4.1.0" PrivateAssets="all" />
-    <PackageReference Include="Stylet" Version="1.3.6" />
+    <PackageReference Include="Material.Avalonia" Version="3.5.0" />
+    <PackageReference Include="Material.Icons.Avalonia" Version="2.1.9" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
+    <PackageReference Include="Onova" Version="2.6.11" />
   </ItemGroup>
 
   <ItemGroup>

DiscordChatExporter.Gui/FodyWeavers.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Weavers xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="FodyWeavers.xsd">
-  <PropertyChanged />
-</Weavers>

DiscordChatExporter.Gui/FodyWeavers.xsd

@@ -1,74 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
-  <!-- This file was generated by Fody. Manual changes to this file will be lost when your project is rebuilt. -->
-  <xs:element name="Weavers">
-    <xs:complexType>
-      <xs:all>
-        <xs:element name="PropertyChanged" minOccurs="0" maxOccurs="1">
-          <xs:complexType>
-            <xs:attribute name="InjectOnPropertyNameChanged" type="xs:boolean">
-              <xs:annotation>
-                <xs:documentation>Used to control if the On_PropertyName_Changed feature is enabled.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-            <xs:attribute name="TriggerDependentProperties" type="xs:boolean">
-              <xs:annotation>
-                <xs:documentation>Used to control if the Dependent properties feature is enabled.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-            <xs:attribute name="EnableIsChangedProperty" type="xs:boolean">
-              <xs:annotation>
-                <xs:documentation>Used to control if the IsChanged property feature is enabled.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-            <xs:attribute name="EventInvokerNames" type="xs:string">
-              <xs:annotation>
-                <xs:documentation>Used to change the name of the method that fires the notify event. This is a string that accepts multiple values in a comma separated form.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-            <xs:attribute name="CheckForEquality" type="xs:boolean">
-              <xs:annotation>
-                <xs:documentation>Used to control if equality checks should be inserted. If false, equality checking will be disabled for the project.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-            <xs:attribute name="CheckForEqualityUsingBaseEquals" type="xs:boolean">
-              <xs:annotation>
-                <xs:documentation>Used to control if equality checks should use the Equals method resolved from the base class.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-            <xs:attribute name="UseStaticEqualsFromBase" type="xs:boolean">
-              <xs:annotation>
-                <xs:documentation>Used to control if equality checks should use the static Equals method resolved from the base class.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-            <xs:attribute name="SuppressWarnings" type="xs:boolean">
-              <xs:annotation>
-                <xs:documentation>Used to turn off build warnings from this weaver.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-            <xs:attribute name="SuppressOnPropertyNameChangedWarning" type="xs:boolean">
-              <xs:annotation>
-                <xs:documentation>Used to turn off build warnings about mismatched On_PropertyName_Changed methods.</xs:documentation>
-              </xs:annotation>
-            </xs:attribute>
-          </xs:complexType>
-        </xs:element>
-      </xs:all>
-      <xs:attribute name="VerifyAssembly" type="xs:boolean">
-        <xs:annotation>
-          <xs:documentation>'true' to run assembly verification (PEVerify) on the target assembly after all weavers have been executed.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-      <xs:attribute name="VerifyIgnoreCodes" type="xs:string">
-        <xs:annotation>
-          <xs:documentation>A comma-separated list of error codes that can be safely ignored in assembly verification.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-      <xs:attribute name="GenerateXsd" type="xs:boolean">
-        <xs:annotation>
-          <xs:documentation>'false' to turn off automatic generation of the XML Schema file.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-    </xs:complexType>
-  </xs:element>
-</xs:schema>

DiscordChatExporter.Gui/Framework/DialogManager.cs

@@ -0,0 +1,88 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using AsyncKeyedLock;
+using Avalonia;
+using Avalonia.Platform.Storage;
+using DialogHostAvalonia;
+using DiscordChatExporter.Gui.Utils.Extensions;
+
+namespace DiscordChatExporter.Gui.Framework;
+
+public class DialogManager : IDisposable
+{
+    private readonly AsyncNonKeyedLocker _dialogLock = new();
+
+    public async Task<T?> ShowDialogAsync<T>(DialogViewModelBase<T> dialog)
+    {
+        using (await _dialogLock.LockAsync())
+        {
+            await DialogHost.Show(
+                dialog,
+                // It's fine to await in a void method here because it's an event handler
+                // ReSharper disable once AsyncVoidLambda
+                async (object _, DialogOpenedEventArgs args) =>
+                {
+                    await dialog.WaitForCloseAsync();
+
+                    try
+                    {
+                        args.Session.Close();
+                    }
+                    catch (InvalidOperationException)
+                    {
+                        // Dialog host is already processing a close operation
+                    }
+                }
+            );
+
+            return dialog.DialogResult;
+        }
+    }
+
+    public async Task<string?> PromptSaveFilePathAsync(
+        IReadOnlyList<FilePickerFileType>? fileTypes = null,
+        string defaultFilePath = ""
+    )
+    {
+        var topLevel =
+            Application.Current?.ApplicationLifetime?.TryGetTopLevel()
+            ?? throw new ApplicationException("Could not find the top-level visual element.");
+
+        var file = await topLevel.StorageProvider.SaveFilePickerAsync(
+            new FilePickerSaveOptions
+            {
+                FileTypeChoices = fileTypes,
+                SuggestedFileName = defaultFilePath,
+                DefaultExtension = Path.GetExtension(defaultFilePath).TrimStart('.')
+            }
+        );
+
+        return file?.Path.LocalPath;
+    }
+
+    public async Task<string?> PromptDirectoryPathAsync(string defaultDirPath = "")
+    {
+        var topLevel =
+            Application.Current?.ApplicationLifetime?.TryGetTopLevel()
+            ?? throw new ApplicationException("Could not find the top-level visual element.");
+
+        var startLocation = await topLevel.StorageProvider.TryGetFolderFromPathAsync(
+            defaultDirPath
+        );
+
+        var folderPickResult = await topLevel.StorageProvider.OpenFolderPickerAsync(
+            new FolderPickerOpenOptions
+            {
+                AllowMultiple = false,
+                SuggestedStartLocation = startLocation
+            }
+        );
+
+        return folderPickResult.FirstOrDefault()?.Path.LocalPath;
+    }
+
+    public void Dispose() => _dialogLock.Dispose();
+}

DiscordChatExporter.Gui/Framework/DialogVIewModelBase.cs

@@ -0,0 +1,25 @@
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace DiscordChatExporter.Gui.Framework;
+
+public abstract partial class DialogViewModelBase<T> : ViewModelBase
+{
+    private readonly TaskCompletionSource<T> _closeTcs =
+        new(TaskCreationOptions.RunContinuationsAsynchronously);
+
+    [ObservableProperty]
+    private T? _dialogResult;
+
+    [RelayCommand]
+    protected void Close(T dialogResult)
+    {
+        DialogResult = dialogResult;
+        _closeTcs.TrySetResult(dialogResult);
+    }
+
+    public async Task<T> WaitForCloseAsync() => await _closeTcs.Task;
+}
+
+public abstract class DialogViewModelBase : DialogViewModelBase<bool?>;

DiscordChatExporter.Gui/Framework/SnackbarManager.cs

@@ -0,0 +1,34 @@
+using System;
+using Avalonia.Threading;
+using Material.Styles.Controls;
+using Material.Styles.Models;
+
+namespace DiscordChatExporter.Gui.Framework;
+
+public class SnackbarManager
+{
+    private readonly TimeSpan _defaultDuration = TimeSpan.FromSeconds(5);
+
+    public void Notify(string message, TimeSpan? duration = null) =>
+        SnackbarHost.Post(
+            new SnackbarModel(message, duration ?? _defaultDuration),
+            null,
+            DispatcherPriority.Normal
+        );
+
+    public void Notify(
+        string message,
+        string actionText,
+        Action actionHandler,
+        TimeSpan? duration = null
+    ) =>
+        SnackbarHost.Post(
+            new SnackbarModel(
+                message,
+                duration ?? _defaultDuration,
+                new SnackbarButtonModel { Text = actionText, Action = actionHandler }
+            ),
+            null,
+            DispatcherPriority.Normal
+        );
+}

DiscordChatExporter.Gui/Framework/UserControl.cs

@@ -0,0 +1,18 @@
+using System;
+using Avalonia.Controls;
+
+namespace DiscordChatExporter.Gui.Framework;
+
+public class UserControl<TDataContext> : UserControl
+{
+    public new TDataContext DataContext
+    {
+        get =>
+            base.DataContext is TDataContext dataContext
+                ? dataContext
+                : throw new InvalidCastException(
+                    $"DataContext is null or not of the expected type '{typeof(TDataContext).FullName}'."
+                );
+        set => base.DataContext = value;
+    }
+}

DiscordChatExporter.Gui/Framework/ViewManager.cs

@@ -0,0 +1,37 @@
+using System;
+using Avalonia.Controls;
+using Avalonia.Controls.Templates;
+
+namespace DiscordChatExporter.Gui.Framework;
+
+public partial class ViewManager
+{
+    public Control? TryBindView(ViewModelBase viewModel)
+    {
+        var name = viewModel
+            .GetType()
+            .FullName?.Replace("ViewModel", "View", StringComparison.Ordinal);
+
+        if (string.IsNullOrWhiteSpace(name))
+            return null;
+
+        var type = Type.GetType(name);
+        if (type is null)
+            return null;
+
+        if (Activator.CreateInstance(type) is not Control view)
+            return null;
+
+        view.DataContext ??= viewModel;
+
+        return view;
+    }
+}
+
+public partial class ViewManager : IDataTemplate
+{
+    bool IDataTemplate.Match(object? data) => data is ViewModelBase;
+
+    Control? ITemplate<object?, Control?>.Build(object? data) =>
+        data is ViewModelBase viewModel ? TryBindView(viewModel) : null;
+}

DiscordChatExporter.Gui/Framework/ViewModelBase.cs

@@ -0,0 +1,19 @@
+using System;
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace DiscordChatExporter.Gui.Framework;
+
+public abstract class ViewModelBase : ObservableObject, IDisposable
+{
+    ~ViewModelBase() => Dispose(false);
+
+    protected void OnAllPropertiesChanged() => OnPropertyChanged(string.Empty);
+
+    protected virtual void Dispose(bool disposing) { }
+
+    public void Dispose()
+    {
+        Dispose(true);
+        GC.SuppressFinalize(this);
+    }
+}

DiscordChatExporter.Gui/Framework/ViewModelManager.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using DiscordChatExporter.Core.Discord.Data;
+using DiscordChatExporter.Gui.ViewModels;
+using DiscordChatExporter.Gui.ViewModels.Components;
+using DiscordChatExporter.Gui.ViewModels.Dialogs;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace DiscordChatExporter.Gui.Framework;
+
+public class ViewModelManager(IServiceProvider services)
+{
+    public MainViewModel CreateMainViewModel() => services.GetRequiredService<MainViewModel>();
+
+    public DashboardViewModel CreateDashboardViewModel() =>
+        services.GetRequiredService<DashboardViewModel>();
+
+    public ExportSetupViewModel CreateExportSetupViewModel(
+        Guild guild,
+        IReadOnlyList<Channel> channels
+    )
+    {
+        var viewModel = services.GetRequiredService<ExportSetupViewModel>();
+
+        viewModel.Guild = guild;
+        viewModel.Channels = channels;
+
+        return viewModel;
+    }
+
+    public MessageBoxViewModel CreateMessageBoxViewModel(
+        string title,
+        string message,
+        string? okButtonText,
+        string? cancelButtonText
+    )
+    {
+        var viewModel = services.GetRequiredService<MessageBoxViewModel>();
+
+        viewModel.Title = title;
+        viewModel.Message = message;
+        viewModel.DefaultButtonText = okButtonText;
+        viewModel.CancelButtonText = cancelButtonText;
+
+        return viewModel;
+    }
+
+    public MessageBoxViewModel CreateMessageBoxViewModel(string title, string message) =>
+        CreateMessageBoxViewModel(title, message, "CLOSE", null);
+
+    public SettingsViewModel CreateSettingsViewModel() =>
+        services.GetRequiredService<SettingsViewModel>();
+}

DiscordChatExporter.Gui/Framework/Window.cs

@@ -0,0 +1,18 @@
+using System;
+using Avalonia.Controls;
+
+namespace DiscordChatExporter.Gui.Framework;
+
+public class Window<TDataContext> : Window
+{
+    public new TDataContext DataContext
+    {
+        get =>
+            base.DataContext is TDataContext dataContext
+                ? dataContext
+                : throw new InvalidCastException(
+                    $"DataContext is null or not of the expected type '{typeof(TDataContext).FullName}'."
+                );
+        set => base.DataContext = value;
+    }
+}

DiscordChatExporter.Gui/Program.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Reflection;
+using Avalonia;
+using DiscordChatExporter.Gui.Utils;
+
+namespace DiscordChatExporter.Gui;
+
+public static class Program
+{
+    private static Assembly Assembly { get; } = typeof(App).Assembly;
+
+    public static string Name { get; } = Assembly.GetName().Name!;
+
+    public static Version Version { get; } = Assembly.GetName().Version!;
+
+    public static string VersionString { get; } = Version.ToString(3);
+
+    public static string ProjectUrl { get; } = "https://github.com/Tyrrrz/DiscordChatExporter";
+
+    public static string LatestReleaseUrl { get; } = ProjectUrl + "/releases/latest";
+
+    public static string DocumentationUrl { get; } = ProjectUrl + "/tree/master/.docs";
+
+    public static AppBuilder BuildAvaloniaApp() =>
+        AppBuilder.Configure<App>().UsePlatformDetect().LogToTrace();
+
+    [STAThread]
+    public static int Main(string[] args)
+    {
+        // Build and run the app
+        var builder = BuildAvaloniaApp();
+
+        try
+        {
+            return builder.StartWithClassicDesktopLifetime(args);
+        }
+        catch (Exception ex)
+        {
+            if (OperatingSystem.IsWindows())
+                _ = NativeMethods.Windows.MessageBox(0, ex.ToString(), "Fatal Error", 0x10);
+
+            throw;
+        }
+        finally
+        {
+            // Clean up after application shutdown
+            if (builder.Instance is IDisposable disposableApp)
+                disposableApp.Dispose();
+        }
+    }
+}

DiscordChatExporter.Gui/Services/SettingsService.cs

@@ -1,48 +1,80 @@
 using System;
 using System.IO;
+using Avalonia;
+using Avalonia.Platform;
 using Cogwheel;
+using CommunityToolkit.Mvvm.ComponentModel;
 using DiscordChatExporter.Core.Exporting;
 using DiscordChatExporter.Gui.Models;
 using Microsoft.Win32;
 
 namespace DiscordChatExporter.Gui.Services;
 
+[INotifyPropertyChanged]
 public partial class SettingsService()
     : SettingsBase(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Settings.dat"))
 {
-    public bool IsUkraineSupportMessageEnabled { get; set; } = true;
+    [ObservableProperty]
+    private bool _isUkraineSupportMessageEnabled = true;
 
-    public bool IsAutoUpdateEnabled { get; set; } = true;
+    [ObservableProperty]
+    private bool _isAutoUpdateEnabled = true;
 
-    public bool IsDarkModeEnabled { get; set; } = IsDarkModeEnabledByDefault();
+    [ObservableProperty]
+    private bool _isDarkModeEnabled;
 
-    public bool IsTokenPersisted { get; set; } = true;
+    [ObservableProperty]
+    private bool _isTokenPersisted = true;
 
-    public ThreadInclusionMode ThreadInclusionMode { get; set; } = ThreadInclusionMode.None;
+    [ObservableProperty]
+    private ThreadInclusionMode _threadInclusionMode;
 
-    public string? Locale { get; set; }
+    [ObservableProperty]
+    private string? _locale;
 
-    public bool IsUtcNormalizationEnabled { get; set; }
+    [ObservableProperty]
+    private bool _isUtcNormalizationEnabled;
 
-    public int ParallelLimit { get; set; } = 1;
+    [ObservableProperty]
+    private int _parallelLimit = 1;
 
-    public Version? LastAppVersion { get; set; }
+    [ObservableProperty]
+    private Version? _lastAppVersion;
 
-    public string? LastToken { get; set; }
+    [ObservableProperty]
+    private string? _lastToken;
 
-    public ExportFormat LastExportFormat { get; set; } = ExportFormat.HtmlDark;
+    [ObservableProperty]
+    private ExportFormat _lastExportFormat = ExportFormat.HtmlDark;
 
-    public string? LastPartitionLimitValue { get; set; }
+    [ObservableProperty]
+    private string? _lastPartitionLimitValue;
 
-    public string? LastMessageFilterValue { get; set; }
+    [ObservableProperty]
+    private string? _lastMessageFilterValue;
 
-    public bool LastShouldFormatMarkdown { get; set; } = true;
+    [ObservableProperty]
+    private bool _lastShouldFormatMarkdown = true;
 
-    public bool LastShouldDownloadAssets { get; set; }
+    [ObservableProperty]
+    private bool _lastShouldDownloadAssets;
 
-    public bool LastShouldReuseAssets { get; set; }
+    [ObservableProperty]
+    private bool _lastShouldReuseAssets;
 
-    public string? LastAssetsDirPath { get; set; }
+    [ObservableProperty]
+    private string? _lastAssetsDirPath;
+
+    public override void Reset()
+    {
+        base.Reset();
+
+        // Reset the dark mode setting separately because its default value is evaluated dynamically
+        // and cannot be set by the field initializer.
+        IsDarkModeEnabled =
+            Application.Current?.PlatformSettings?.GetColorValues().ThemeVariant
+            == PlatformThemeVariant.Dark;
+    }
 
     public override void Save()
     {
@@ -56,24 +88,3 @@ public partial class SettingsService()
         LastToken = lastToken;
     }
 }
-
-public partial class SettingsService
-{
-    private static bool IsDarkModeEnabledByDefault()
-    {
-        try
-        {
-            return Registry
-                .CurrentUser.OpenSubKey(
-                    "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize",
-                    false
-                )
-                ?.GetValue("AppsUseLightTheme")
-                is 0;
-        }
-        catch
-        {
-            return false;
-        }
-    }
-}

DiscordChatExporter.Gui/Services/UpdateService.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Runtime.InteropServices;
 using System.Threading.Tasks;
 using Onova;
 using Onova.Exceptions;
@@ -9,7 +10,15 @@ namespace DiscordChatExporter.Gui.Services;
 public class UpdateService(SettingsService settingsService) : IDisposable
 {
     private readonly IUpdateManager _updateManager = new UpdateManager(
-        new GithubPackageResolver("Tyrrrz", "DiscordChatExporter", "DiscordChatExporter.zip"),
+        new GithubPackageResolver(
+            "Tyrrrz",
+            "DiscordChatExporter",
+            // Examples:
+            // DiscordChatExporter.win-arm64.zip
+            // DiscordChatExporter.win-x64.zip
+            // DiscordChatExporter.linux-x64.zip
+            $"DiscordChatExporter.{RuntimeInformation.RuntimeIdentifier}.zip"
+        ),
         new ZipPackageExtractor()
     );
 
@@ -51,6 +60,10 @@ public class UpdateService(SettingsService settingsService) : IDisposable
         if (!settingsService.IsAutoUpdateEnabled)
             return;
 
+        // Onova only works on Windows currently
+        if (!OperatingSystem.IsWindows())
+            return;
+
         if (_updateVersion is null || !_updatePrepared || _updaterLaunched)
             return;
 

DiscordChatExporter.Gui/Utils/Disposable.cs

@@ -0,0 +1,10 @@
+using System;
+
+namespace DiscordChatExporter.Gui.Utils;
+
+internal class Disposable(Action dispose) : IDisposable
+{
+    public static IDisposable Create(Action dispose) => new Disposable(dispose);
+
+    public void Dispose() => dispose();
+}

DiscordChatExporter.Gui/Utils/DisposableCollector.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using DiscordChatExporter.Gui.Utils.Extensions;
+
+namespace DiscordChatExporter.Gui.Utils;
+
+internal class DisposableCollector : IDisposable
+{
+    private readonly object _lock = new();
+    private readonly List<IDisposable> _items = [];
+
+    public void Add(IDisposable item)
+    {
+        lock (_lock)
+        {
+            _items.Add(item);
+        }
+    }
+
+    public void Dispose()
+    {
+        lock (_lock)
+        {
+            _items.DisposeAll();
+            _items.Clear();
+        }
+    }
+}

DiscordChatExporter.Gui/Utils/Extensions/AvaloniaExtensions.cs

@@ -0,0 +1,34 @@
+using System;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.VisualTree;
+
+namespace DiscordChatExporter.Gui.Utils.Extensions;
+
+internal static class AvaloniaExtensions
+{
+    public static Window? TryGetMainWindow(this IApplicationLifetime lifetime) =>
+        lifetime is IClassicDesktopStyleApplicationLifetime desktopLifetime
+            ? desktopLifetime.MainWindow
+            : null;
+
+    public static TopLevel? TryGetTopLevel(this IApplicationLifetime lifetime) =>
+        lifetime.TryGetMainWindow()
+        ?? (lifetime as ISingleViewApplicationLifetime)?.MainView?.GetVisualRoot() as TopLevel;
+
+    public static bool TryShutdown(this IApplicationLifetime lifetime, int exitCode = 0)
+    {
+        if (lifetime is IClassicDesktopStyleApplicationLifetime desktopLifetime)
+        {
+            return desktopLifetime.TryShutdown(exitCode);
+        }
+
+        if (lifetime is IControlledApplicationLifetime controlledLifetime)
+        {
+            controlledLifetime.Shutdown(exitCode);
+            return true;
+        }
+
+        return false;
+    }
+}

DiscordChatExporter.Gui/Utils/Extensions/DisposableExtensions.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace DiscordChatExporter.Gui.Utils.Extensions;
+
+internal static class DisposableExtensions
+{
+    public static void DisposeAll(this IEnumerable<IDisposable> disposables)
+    {
+        var exceptions = default(List<Exception>);
+
+        foreach (var disposable in disposables)
+        {
+            try
+            {
+                disposable.Dispose();
+            }
+            catch (Exception ex)
+            {
+                (exceptions ??= []).Add(ex);
+            }
+        }
+
+        if (exceptions?.Any() == true)
+            throw new AggregateException(exceptions);
+    }
+}

DiscordChatExporter.Gui/Utils/Extensions/NotifyPropertyChangedExtensions.cs

@@ -0,0 +1,60 @@
+using System;
+using System.ComponentModel;
+using System.Linq.Expressions;
+using System.Reflection;
+
+namespace DiscordChatExporter.Gui.Utils.Extensions;
+
+internal static class NotifyPropertyChangedExtensions
+{
+    public static IDisposable WatchProperty<TOwner, TProperty>(
+        this TOwner owner,
+        Expression<Func<TOwner, TProperty>> propertyExpression,
+        Action callback,
+        bool watchInitialValue = true
+    )
+        where TOwner : INotifyPropertyChanged
+    {
+        var memberExpression =
+            propertyExpression.Body as MemberExpression
+            // Property value might be boxed inside a conversion expression, if the types don't match
+            ?? (propertyExpression.Body as UnaryExpression)?.Operand as MemberExpression;
+
+        if (memberExpression?.Member is not PropertyInfo property)
+            throw new ArgumentException("Provided expression must reference a property.");
+
+        void OnPropertyChanged(object? sender, PropertyChangedEventArgs args)
+        {
+            if (
+                string.IsNullOrWhiteSpace(args.PropertyName)
+                || string.Equals(args.PropertyName, property.Name, StringComparison.Ordinal)
+            )
+            {
+                callback();
+            }
+        }
+
+        owner.PropertyChanged += OnPropertyChanged;
+
+        if (watchInitialValue)
+            callback();
+
+        return Disposable.Create(() => owner.PropertyChanged -= OnPropertyChanged);
+    }
+
+    public static IDisposable WatchAllProperties<TOwner>(
+        this TOwner owner,
+        Action callback,
+        bool watchInitialValues = true
+    )
+        where TOwner : INotifyPropertyChanged
+    {
+        void OnPropertyChanged(object? sender, PropertyChangedEventArgs args) => callback();
+        owner.PropertyChanged += OnPropertyChanged;
+
+        if (watchInitialValues)
+            callback();
+
+        return Disposable.Create(() => owner.PropertyChanged -= OnPropertyChanged);
+    }
+}

DiscordChatExporter.Gui/Utils/Internationalization.cs

@@ -7,4 +7,6 @@ internal static class Internationalization
     public static bool Is24Hours =>
         string.IsNullOrWhiteSpace(CultureInfo.CurrentCulture.DateTimeFormat.AMDesignator)
         && string.IsNullOrWhiteSpace(CultureInfo.CurrentCulture.DateTimeFormat.PMDesignator);
+
+    public static string AvaloniaClockIdentifier => Is24Hours ? "24HourClock" : "12HourClock";
 }

DiscordChatExporter.Gui/Utils/MediaColor.cs

@@ -1,8 +0,0 @@
-using System.Windows.Media;
-
-namespace DiscordChatExporter.Gui.Utils;
-
-internal static class MediaColor
-{
-    public static Color FromHex(string hex) => (Color)ColorConverter.ConvertFromString(hex);
-}

DiscordChatExporter.Gui/Utils/NativeMethods.cs

@@ -0,0 +1,12 @@
+using System.Runtime.InteropServices;
+
+namespace DiscordChatExporter.Gui.Utils;
+
+internal static class NativeMethods
+{
+    public static class Windows
+    {
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern int MessageBox(nint hWnd, string text, string caption, uint type);
+    }
+}

DiscordChatExporter.Gui/Utils/ProcessEx.cs

@@ -6,10 +6,8 @@ internal static class ProcessEx
 {
     public static void StartShellExecute(string path)
     {
-        using var process = new Process
-        {
-            StartInfo = new ProcessStartInfo { FileName = path, UseShellExecute = true }
-        };
+        using var process = new Process();
+        process.StartInfo = new ProcessStartInfo { FileName = path, UseShellExecute = true };
 
         process.Start();
     }

DiscordChatExporter.Gui/ViewModels/Components/DashboardViewModel.cs

@@ -1,104 +1,113 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
 using DiscordChatExporter.Core.Discord;
 using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Exceptions;
 using DiscordChatExporter.Core.Exporting;
 using DiscordChatExporter.Core.Utils.Extensions;
+using DiscordChatExporter.Gui.Framework;
 using DiscordChatExporter.Gui.Models;
 using DiscordChatExporter.Gui.Services;
 using DiscordChatExporter.Gui.Utils;
-using DiscordChatExporter.Gui.ViewModels.Dialogs;
-using DiscordChatExporter.Gui.ViewModels.Framework;
-using DiscordChatExporter.Gui.ViewModels.Messages;
+using DiscordChatExporter.Gui.Utils.Extensions;
 using Gress;
 using Gress.Completable;
-using Stylet;
 
 namespace DiscordChatExporter.Gui.ViewModels.Components;
 
-public class DashboardViewModel : PropertyChangedBase
+public partial class DashboardViewModel : ViewModelBase
 {
-    private readonly IViewModelFactory _viewModelFactory;
-    private readonly IEventAggregator _eventAggregator;
+    private readonly ViewModelManager _viewModelManager;
+    private readonly SnackbarManager _snackbarManager;
     private readonly DialogManager _dialogManager;
     private readonly SettingsService _settingsService;
 
+    private readonly DisposableCollector _eventRoot = new();
     private readonly AutoResetProgressMuxer _progressMuxer;
 
     private DiscordClient? _discord;
 
-    public bool IsBusy { get; private set; }
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(IsProgressIndeterminate))]
+    [NotifyCanExecuteChangedFor(nameof(PullGuildsCommand))]
+    [NotifyCanExecuteChangedFor(nameof(PullChannelsCommand))]
+    [NotifyCanExecuteChangedFor(nameof(ExportCommand))]
+    private bool _isBusy;
+
+    [ObservableProperty]
+    [NotifyCanExecuteChangedFor(nameof(PullGuildsCommand))]
+    private string? _token;
+
+    [ObservableProperty]
+    private IReadOnlyList<Guild>? _availableGuilds;
+
+    [ObservableProperty]
+    [NotifyCanExecuteChangedFor(nameof(PullChannelsCommand))]
+    [NotifyCanExecuteChangedFor(nameof(ExportCommand))]
+    private Guild? _selectedGuild;
+
+    [ObservableProperty]
+    private IReadOnlyList<ChannelNode>? _availableChannels;
+
+    public DashboardViewModel(
+        ViewModelManager viewModelManager,
+        DialogManager dialogManager,
+        SnackbarManager snackbarManager,
+        SettingsService settingsService
+    )
+    {
+        _viewModelManager = viewModelManager;
+        _dialogManager = dialogManager;
+        _snackbarManager = snackbarManager;
+        _settingsService = settingsService;
+
+        _progressMuxer = Progress.CreateMuxer().WithAutoReset();
+
+        _eventRoot.Add(
+            Progress.WatchProperty(
+                o => o.Current,
+                () => OnPropertyChanged(nameof(IsProgressIndeterminate))
+            )
+        );
+
+        _eventRoot.Add(
+            SelectedChannels.WatchProperty(
+                o => o.Count,
+                () => ExportCommand.NotifyCanExecuteChanged()
+            )
+        );
+    }
 
     public ProgressContainer<Percentage> Progress { get; } = new();
 
     public bool IsProgressIndeterminate => IsBusy && Progress.Current.Fraction is <= 0 or >= 1;
 
-    public string? Token { get; set; }
+    public ObservableCollection<ChannelNode> SelectedChannels { get; } = [];
 
-    public IReadOnlyList<Guild>? AvailableGuilds { get; private set; }
-
-    public Guild? SelectedGuild { get; set; }
-
-    public IReadOnlyList<Channel>? AvailableChannels { get; private set; }
-
-    public IReadOnlyList<Channel>? SelectedChannels { get; set; }
-
-    public DashboardViewModel(
-        IViewModelFactory viewModelFactory,
-        IEventAggregator eventAggregator,
-        DialogManager dialogManager,
-        SettingsService settingsService
-    )
-    {
-        _viewModelFactory = viewModelFactory;
-        _eventAggregator = eventAggregator;
-        _dialogManager = dialogManager;
-        _settingsService = settingsService;
-
-        _progressMuxer = Progress.CreateMuxer().WithAutoReset();
-
-        this.Bind(o => o.IsBusy, (_, _) => NotifyOfPropertyChange(() => IsProgressIndeterminate));
-
-        Progress.Bind(
-            o => o.Current,
-            (_, _) => NotifyOfPropertyChange(() => IsProgressIndeterminate)
-        );
-
-        this.Bind(
-            o => o.SelectedGuild,
-            (_, _) =>
-            {
-                // Reset channels when the selected guild changes, to avoid jitter
-                // due to the channels being asynchronously loaded.
-                AvailableChannels = null;
-                SelectedChannels = null;
-
-                // Pull channels for the selected guild
-                // (ideally this should be called inside `PullGuilds()`,
-                // but Stylet doesn't support async commands)
-                PullChannels();
-            }
-        );
-    }
-
-    public void OnViewLoaded()
+    [RelayCommand]
+    private void Initialize()
     {
         if (!string.IsNullOrWhiteSpace(_settingsService.LastToken))
             Token = _settingsService.LastToken;
     }
 
-    public async void ShowSettings() =>
-        await _dialogManager.ShowDialogAsync(_viewModelFactory.CreateSettingsViewModel());
+    [RelayCommand]
+    private async Task ShowSettingsAsync() =>
+        await _dialogManager.ShowDialogAsync(_viewModelManager.CreateSettingsViewModel());
 
-    public void ShowHelp() => ProcessEx.StartShellExecute(App.DocumentationUrl);
+    [RelayCommand]
+    private void ShowHelp() => ProcessEx.StartShellExecute(Program.DocumentationUrl);
 
-    public bool CanPullGuilds => !IsBusy && !string.IsNullOrWhiteSpace(Token);
+    private bool CanPullGuilds() => !IsBusy && !string.IsNullOrWhiteSpace(Token);
 
-    public async void PullGuilds()
+    [RelayCommand(CanExecute = nameof(CanPullGuilds))]
+    private async Task PullGuildsAsync()
     {
         IsBusy = true;
         var progress = _progressMuxer.CreateInput();
@@ -112,7 +121,7 @@ public class DashboardViewModel : PropertyChangedBase
             AvailableGuilds = null;
             SelectedGuild = null;
             AvailableChannels = null;
-            SelectedChannels = null;
+            SelectedChannels.Clear();
 
             _discord = new DiscordClient(token);
             _settingsService.LastToken = token;
@@ -121,14 +130,16 @@ public class DashboardViewModel : PropertyChangedBase
 
             AvailableGuilds = guilds;
             SelectedGuild = guilds.FirstOrDefault();
+
+            await PullChannelsAsync();
         }
         catch (DiscordChatExporterException ex) when (!ex.IsFatal)
         {
-            _eventAggregator.Publish(new NotificationMessage(ex.Message.TrimEnd('.')));
+            _snackbarManager.Notify(ex.Message.TrimEnd('.'));
         }
         catch (Exception ex)
         {
-            var dialog = _viewModelFactory.CreateMessageBoxViewModel(
+            var dialog = _viewModelManager.CreateMessageBoxViewModel(
                 "Error pulling guilds",
                 ex.ToString()
             );
@@ -142,9 +153,10 @@ public class DashboardViewModel : PropertyChangedBase
         }
     }
 
-    public bool CanPullChannels => !IsBusy && _discord is not null && SelectedGuild is not null;
+    private bool CanPullChannels() => !IsBusy && _discord is not null && SelectedGuild is not null;
 
-    public async void PullChannels()
+    [RelayCommand(CanExecute = nameof(CanPullChannels))]
+    private async Task PullChannelsAsync()
     {
         IsBusy = true;
         var progress = _progressMuxer.CreateInput();
@@ -155,18 +167,13 @@ public class DashboardViewModel : PropertyChangedBase
                 return;
 
             AvailableChannels = null;
-            SelectedChannels = null;
+            SelectedChannels.Clear();
 
             var channels = new List<Channel>();
 
             // Regular channels
             await foreach (var channel in _discord.GetGuildChannelsAsync(SelectedGuild.Id))
-            {
-                if (channel.IsCategory)
-                    continue;
-
                 channels.Add(channel);
-            }
 
             // Threads
             if (_settingsService.ThreadInclusionMode != ThreadInclusionMode.None)
@@ -182,16 +189,24 @@ public class DashboardViewModel : PropertyChangedBase
                 }
             }
 
-            AvailableChannels = channels;
-            SelectedChannels = null;
+            // Build a hierarchy of channels
+            var channelTree = ChannelNode.BuildTree(
+                channels
+                    .OrderByDescending(c => c.IsDirect ? c.LastMessageId : null)
+                    .ThenBy(c => c.Position)
+                    .ToArray()
+            );
+
+            AvailableChannels = channelTree;
+            SelectedChannels.Clear();
         }
         catch (DiscordChatExporterException ex) when (!ex.IsFatal)
         {
-            _eventAggregator.Publish(new NotificationMessage(ex.Message.TrimEnd('.')));
+            _snackbarManager.Notify(ex.Message.TrimEnd('.'));
         }
         catch (Exception ex)
         {
-            var dialog = _viewModelFactory.CreateMessageBoxViewModel(
+            var dialog = _viewModelManager.CreateMessageBoxViewModel(
                 "Error pulling channels",
                 ex.ToString()
             );
@@ -205,30 +220,24 @@ public class DashboardViewModel : PropertyChangedBase
         }
     }
 
-    public bool CanExport =>
-        !IsBusy
-        && _discord is not null
-        && SelectedGuild is not null
-        && SelectedChannels?.Any() is true;
+    private bool CanExport() =>
+        !IsBusy && _discord is not null && SelectedGuild is not null && SelectedChannels.Any();
 
-    public async void Export()
+    [RelayCommand(CanExecute = nameof(CanExport))]
+    private async Task ExportAsync()
     {
         IsBusy = true;
 
         try
         {
-            if (
-                _discord is null
-                || SelectedGuild is null
-                || SelectedChannels is null
-                || !SelectedChannels.Any()
-            )
+            if (_discord is null || SelectedGuild is null || !SelectedChannels.Any())
                 return;
 
-            var dialog = _viewModelFactory.CreateExportSetupViewModel(
+            var dialog = _viewModelManager.CreateExportSetupViewModel(
                 SelectedGuild,
-                SelectedChannels
+                SelectedChannels.Select(c => c.Channel).ToArray()
             );
+
             if (await _dialogManager.ShowDialogAsync(dialog) != true)
                 return;
 
@@ -276,7 +285,7 @@ public class DashboardViewModel : PropertyChangedBase
                     }
                     catch (DiscordChatExporterException ex) when (!ex.IsFatal)
                     {
-                        _eventAggregator.Publish(new NotificationMessage(ex.Message.TrimEnd('.')));
+                        _snackbarManager.Notify(ex.Message.TrimEnd('.'));
                     }
                     finally
                     {
@@ -288,16 +297,14 @@ public class DashboardViewModel : PropertyChangedBase
             // Notify of the overall completion
             if (successfulExportCount > 0)
             {
-                _eventAggregator.Publish(
-                    new NotificationMessage(
-                        $"Successfully exported {successfulExportCount} channel(s)"
-                    )
+                _snackbarManager.Notify(
+                    $"Successfully exported {successfulExportCount} channel(s)"
                 );
             }
         }
         catch (Exception ex)
         {
-            var dialog = _viewModelFactory.CreateMessageBoxViewModel(
+            var dialog = _viewModelManager.CreateMessageBoxViewModel(
                 "Error exporting channel(s)",
                 ex.ToString()
             );
@@ -310,8 +317,20 @@ public class DashboardViewModel : PropertyChangedBase
         }
     }
 
-    public void OpenDiscord() => ProcessEx.StartShellExecute("https://discord.com/app");
+    [RelayCommand]
+    private void OpenDiscord() => ProcessEx.StartShellExecute("https://discord.com/app");
 
-    public void OpenDiscordDeveloperPortal() =>
+    [RelayCommand]
+    private void OpenDiscordDeveloperPortal() =>
         ProcessEx.StartShellExecute("https://discord.com/developers/applications");
+
+    protected override void Dispose(bool disposing)
+    {
+        if (disposing)
+        {
+            _eventRoot.Dispose();
+        }
+
+        base.Dispose(disposing);
+    }
 }

DiscordChatExporter.Gui/ViewModels/Dialogs/ExportSetupViewModel.cs

@@ -1,89 +1,111 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
+using Avalonia.Platform.Storage;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
 using DiscordChatExporter.Core.Discord;
 using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Exporting;
 using DiscordChatExporter.Core.Exporting.Filtering;
 using DiscordChatExporter.Core.Exporting.Partitioning;
 using DiscordChatExporter.Core.Utils.Extensions;
+using DiscordChatExporter.Gui.Framework;
 using DiscordChatExporter.Gui.Services;
-using DiscordChatExporter.Gui.ViewModels.Framework;
 
 namespace DiscordChatExporter.Gui.ViewModels.Dialogs;
 
-public class ExportSetupViewModel : DialogScreen
+public partial class ExportSetupViewModel(
+    DialogManager dialogManager,
+    SettingsService settingsService
+) : DialogViewModelBase
 {
-    private readonly DialogManager _dialogManager;
-    private readonly SettingsService _settingsService;
+    [ObservableProperty]
+    private Guild? _guild;
 
-    public Guild? Guild { get; set; }
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(IsSingleChannel))]
+    private IReadOnlyList<Channel>? _channels;
 
-    public IReadOnlyList<Channel>? Channels { get; set; }
+    [ObservableProperty]
+    private string? _outputPath;
+
+    [ObservableProperty]
+    private ExportFormat _selectedFormat;
+
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(IsAfterDateSet))]
+    [NotifyPropertyChangedFor(nameof(After))]
+    private DateTimeOffset? _afterDate;
+
+    [ObservableProperty]
+    private TimeSpan? _afterTime;
+
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(IsBeforeDateSet))]
+    [NotifyPropertyChangedFor(nameof(Before))]
+    private DateTimeOffset? _beforeDate;
+
+    [ObservableProperty]
+    private TimeSpan? _beforeTime;
+
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(PartitionLimit))]
+    private string? _partitionLimitValue;
+
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(MessageFilter))]
+    private string? _messageFilterValue;
+
+    [ObservableProperty]
+    private bool _shouldFormatMarkdown;
+
+    [ObservableProperty]
+    private bool _shouldDownloadAssets;
+
+    [ObservableProperty]
+    private bool _shouldReuseAssets;
+
+    [ObservableProperty]
+    private string? _assetsDirPath;
+
+    [ObservableProperty]
+    private bool _isAdvancedSectionDisplayed;
 
     public bool IsSingleChannel => Channels?.Count == 1;
 
-    public string? OutputPath { get; set; }
-
     public IReadOnlyList<ExportFormat> AvailableFormats { get; } = Enum.GetValues<ExportFormat>();
 
-    public ExportFormat SelectedFormat { get; set; }
-
-    // This date/time abomination is required because we use separate controls to set these
-
-    public DateTimeOffset? AfterDate { get; set; }
-
     public bool IsAfterDateSet => AfterDate is not null;
 
-    public TimeSpan? AfterTime { get; set; }
-
     public DateTimeOffset? After => AfterDate?.Add(AfterTime ?? TimeSpan.Zero);
 
-    public DateTimeOffset? BeforeDate { get; set; }
-
     public bool IsBeforeDateSet => BeforeDate is not null;
 
-    public TimeSpan? BeforeTime { get; set; }
-
     public DateTimeOffset? Before => BeforeDate?.Add(BeforeTime ?? TimeSpan.Zero);
 
-    public string? PartitionLimitValue { get; set; }
-
     public PartitionLimit PartitionLimit =>
         !string.IsNullOrWhiteSpace(PartitionLimitValue)
             ? PartitionLimit.Parse(PartitionLimitValue)
             : PartitionLimit.Null;
 
-    public string? MessageFilterValue { get; set; }
-
     public MessageFilter MessageFilter =>
         !string.IsNullOrWhiteSpace(MessageFilterValue)
             ? MessageFilter.Parse(MessageFilterValue)
             : MessageFilter.Null;
 
-    public bool ShouldFormatMarkdown { get; set; }
-
-    public bool ShouldDownloadAssets { get; set; }
-
-    public bool ShouldReuseAssets { get; set; }
-
-    public string? AssetsDirPath { get; set; }
-
-    public bool IsAdvancedSectionDisplayed { get; set; }
-
-    public ExportSetupViewModel(DialogManager dialogManager, SettingsService settingsService)
+    [RelayCommand]
+    private void Initialize()
     {
-        _dialogManager = dialogManager;
-        _settingsService = settingsService;
-
         // Persist preferences
-        SelectedFormat = _settingsService.LastExportFormat;
-        PartitionLimitValue = _settingsService.LastPartitionLimitValue;
-        MessageFilterValue = _settingsService.LastMessageFilterValue;
-        ShouldFormatMarkdown = _settingsService.LastShouldFormatMarkdown;
-        ShouldDownloadAssets = _settingsService.LastShouldDownloadAssets;
-        ShouldReuseAssets = _settingsService.LastShouldReuseAssets;
-        AssetsDirPath = _settingsService.LastAssetsDirPath;
+        SelectedFormat = settingsService.LastExportFormat;
+        PartitionLimitValue = settingsService.LastPartitionLimitValue;
+        MessageFilterValue = settingsService.LastMessageFilterValue;
+        ShouldFormatMarkdown = settingsService.LastShouldFormatMarkdown;
+        ShouldDownloadAssets = settingsService.LastShouldDownloadAssets;
+        ShouldReuseAssets = settingsService.LastShouldReuseAssets;
+        AssetsDirPath = settingsService.LastAssetsDirPath;
 
         // Show the "advanced options" section by default if any
         // of the advanced options are set to non-default values.
@@ -97,9 +119,8 @@ public class ExportSetupViewModel : DialogScreen
             || !string.IsNullOrWhiteSpace(AssetsDirPath);
     }
 
-    public void ToggleAdvancedSection() => IsAdvancedSectionDisplayed = !IsAdvancedSectionDisplayed;
-
-    public void ShowOutputPathPrompt()
+    [RelayCommand]
+    private async Task ShowOutputPathPromptAsync()
     {
         if (IsSingleChannel)
         {
@@ -112,33 +133,43 @@ public class ExportSetupViewModel : DialogScreen
             );
 
             var extension = SelectedFormat.GetFileExtension();
-            var filter = $"{extension.ToUpperInvariant()} files|*.{extension}";
 
-            var path = _dialogManager.PromptSaveFilePath(filter, defaultFileName);
+            var path = await dialogManager.PromptSaveFilePathAsync(
+                [
+                    new FilePickerFileType($"{extension.ToUpperInvariant()} file")
+                    {
+                        Patterns = [$"*.{extension}"]
+                    }
+                ],
+                defaultFileName
+            );
+
             if (!string.IsNullOrWhiteSpace(path))
                 OutputPath = path;
         }
         else
         {
-            var path = _dialogManager.PromptDirectoryPath();
+            var path = await dialogManager.PromptDirectoryPathAsync();
             if (!string.IsNullOrWhiteSpace(path))
                 OutputPath = path;
         }
     }
 
-    public void ShowAssetsDirPathPrompt()
+    [RelayCommand]
+    private async Task ShowAssetsDirPathPromptAsync()
     {
-        var path = _dialogManager.PromptDirectoryPath();
+        var path = await dialogManager.PromptDirectoryPathAsync();
         if (!string.IsNullOrWhiteSpace(path))
             AssetsDirPath = path;
     }
 
-    public void Confirm()
+    [RelayCommand]
+    private async Task ConfirmAsync()
     {
-        // Prompt the output path if it's not set yet
+        // Prompt the output path if it hasn't been set yet
         if (string.IsNullOrWhiteSpace(OutputPath))
         {
-            ShowOutputPathPrompt();
+            await ShowOutputPathPromptAsync();
 
             // If the output path is still not set, cancel the export
             if (string.IsNullOrWhiteSpace(OutputPath))
@@ -146,31 +177,14 @@ public class ExportSetupViewModel : DialogScreen
         }
 
         // Persist preferences
-        _settingsService.LastExportFormat = SelectedFormat;
-        _settingsService.LastPartitionLimitValue = PartitionLimitValue;
-        _settingsService.LastMessageFilterValue = MessageFilterValue;
-        _settingsService.LastShouldFormatMarkdown = ShouldFormatMarkdown;
-        _settingsService.LastShouldDownloadAssets = ShouldDownloadAssets;
-        _settingsService.LastShouldReuseAssets = ShouldReuseAssets;
-        _settingsService.LastAssetsDirPath = AssetsDirPath;
+        settingsService.LastExportFormat = SelectedFormat;
+        settingsService.LastPartitionLimitValue = PartitionLimitValue;
+        settingsService.LastMessageFilterValue = MessageFilterValue;
+        settingsService.LastShouldFormatMarkdown = ShouldFormatMarkdown;
+        settingsService.LastShouldDownloadAssets = ShouldDownloadAssets;
+        settingsService.LastShouldReuseAssets = ShouldReuseAssets;
+        settingsService.LastAssetsDirPath = AssetsDirPath;
 
         Close(true);
     }
 }
-
-public static class ExportSetupViewModelExtensions
-{
-    public static ExportSetupViewModel CreateExportSetupViewModel(
-        this IViewModelFactory factory,
-        Guild guild,
-        IReadOnlyList<Channel> channels
-    )
-    {
-        var viewModel = factory.CreateExportSetupViewModel();
-
-        viewModel.Guild = guild;
-        viewModel.Channels = channels;
-
-        return viewModel;
-    }
-}

DiscordChatExporter.Gui/ViewModels/Dialogs/MessageBoxViewModel.cs

@@ -1,49 +1,29 @@
-using DiscordChatExporter.Gui.ViewModels.Framework;
+using CommunityToolkit.Mvvm.ComponentModel;
+using DiscordChatExporter.Gui.Framework;
 
 namespace DiscordChatExporter.Gui.ViewModels.Dialogs;
 
-public class MessageBoxViewModel : DialogScreen
+public partial class MessageBoxViewModel : DialogViewModelBase
 {
-    public string? Title { get; set; }
+    [ObservableProperty]
+    private string? _title = "Title";
 
-    public string? Message { get; set; }
+    [ObservableProperty]
+    private string? _message = "Message";
 
-    public bool IsOkButtonVisible { get; set; } = true;
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(IsDefaultButtonVisible))]
+    [NotifyPropertyChangedFor(nameof(ButtonsCount))]
+    private string? _defaultButtonText = "OK";
 
-    public string? OkButtonText { get; set; }
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(IsCancelButtonVisible))]
+    [NotifyPropertyChangedFor(nameof(ButtonsCount))]
+    private string? _cancelButtonText = "Cancel";
 
-    public bool IsCancelButtonVisible { get; set; }
+    public bool IsDefaultButtonVisible => !string.IsNullOrWhiteSpace(DefaultButtonText);
 
-    public string? CancelButtonText { get; set; }
+    public bool IsCancelButtonVisible => !string.IsNullOrWhiteSpace(CancelButtonText);
 
-    public int ButtonsCount => (IsOkButtonVisible ? 1 : 0) + (IsCancelButtonVisible ? 1 : 0);
-}
-
-public static class MessageBoxViewModelExtensions
-{
-    public static MessageBoxViewModel CreateMessageBoxViewModel(
-        this IViewModelFactory factory,
-        string title,
-        string message,
-        string? okButtonText,
-        string? cancelButtonText
-    )
-    {
-        var viewModel = factory.CreateMessageBoxViewModel();
-
-        viewModel.Title = title;
-        viewModel.Message = message;
-        viewModel.IsOkButtonVisible = !string.IsNullOrWhiteSpace(okButtonText);
-        viewModel.OkButtonText = okButtonText;
-        viewModel.IsCancelButtonVisible = !string.IsNullOrWhiteSpace(cancelButtonText);
-        viewModel.CancelButtonText = cancelButtonText;
-
-        return viewModel;
-    }
-
-    public static MessageBoxViewModel CreateMessageBoxViewModel(
-        this IViewModelFactory factory,
-        string title,
-        string message
-    ) => factory.CreateMessageBoxViewModel(title, message, "CLOSE", null);
+    public int ButtonsCount => (IsDefaultButtonVisible ? 1 : 0) + (IsCancelButtonVisible ? 1 : 0);
 }

DiscordChatExporter.Gui/ViewModels/Dialogs/SettingsViewModel.cs

@@ -2,30 +2,43 @@
 using System.Collections.Generic;
 using System.Linq;
 using DiscordChatExporter.Core.Utils.Extensions;
+using DiscordChatExporter.Gui.Framework;
 using DiscordChatExporter.Gui.Models;
 using DiscordChatExporter.Gui.Services;
-using DiscordChatExporter.Gui.ViewModels.Framework;
+using DiscordChatExporter.Gui.Utils;
+using DiscordChatExporter.Gui.Utils.Extensions;
 
 namespace DiscordChatExporter.Gui.ViewModels.Dialogs;
 
-public class SettingsViewModel(SettingsService settingsService) : DialogScreen
+public class SettingsViewModel : DialogViewModelBase
 {
+    private readonly SettingsService _settingsService;
+
+    private readonly DisposableCollector _eventRoot = new();
+
+    public SettingsViewModel(SettingsService settingsService)
+    {
+        _settingsService = settingsService;
+
+        _eventRoot.Add(_settingsService.WatchAllProperties(OnAllPropertiesChanged));
+    }
+
     public bool IsAutoUpdateEnabled
     {
-        get => settingsService.IsAutoUpdateEnabled;
-        set => settingsService.IsAutoUpdateEnabled = value;
+        get => _settingsService.IsAutoUpdateEnabled;
+        set => _settingsService.IsAutoUpdateEnabled = value;
     }
 
     public bool IsDarkModeEnabled
     {
-        get => settingsService.IsDarkModeEnabled;
-        set => settingsService.IsDarkModeEnabled = value;
+        get => _settingsService.IsDarkModeEnabled;
+        set => _settingsService.IsDarkModeEnabled = value;
     }
 
     public bool IsTokenPersisted
     {
-        get => settingsService.IsTokenPersisted;
-        set => settingsService.IsTokenPersisted = value;
+        get => _settingsService.IsTokenPersisted;
+        set => _settingsService.IsTokenPersisted = value;
     }
 
     public IReadOnlyList<ThreadInclusionMode> AvailableThreadInclusions { get; } =
@@ -33,13 +46,13 @@ public class SettingsViewModel(SettingsService settingsService) : DialogScreen
 
     public ThreadInclusionMode ThreadInclusionMode
     {
-        get => settingsService.ThreadInclusionMode;
-        set => settingsService.ThreadInclusionMode = value;
+        get => _settingsService.ThreadInclusionMode;
+        set => _settingsService.ThreadInclusionMode = value;
     }
 
-    // These items have to be non-nullable because WPF ComboBox doesn't allow a null value to be selected
-    public IReadOnlyList<string> AvailableLocales { get; } = new[]
-        {
+    // These items have to be non-nullable because Avalonia ComboBox doesn't allow a null value to be selected
+    public IReadOnlyList<string> AvailableLocales { get; } =
+        [
             // Current locale (maps to null downstream)
             "",
             // Locales supported by the Discord app
@@ -72,25 +85,35 @@ public class SettingsViewModel(SettingsService settingsService) : DialogScreen
             "ja-JP",
             "zh-TW",
             "ko-KR"
-        }.Distinct(StringComparer.OrdinalIgnoreCase).ToArray();
+        ];
 
-    // This has to be non-nullable because WPF ComboBox doesn't allow a null value to be selected
+    // This has to be non-nullable because Avalonia ComboBox doesn't allow a null value to be selected
     public string Locale
     {
-        get => settingsService.Locale ?? "";
+        get => _settingsService.Locale ?? "";
         // Important to reduce empty strings to nulls, because empty strings don't correspond to valid cultures
-        set => settingsService.Locale = value.NullIfWhiteSpace();
+        set => _settingsService.Locale = value.NullIfWhiteSpace();
     }
 
     public bool IsUtcNormalizationEnabled
     {
-        get => settingsService.IsUtcNormalizationEnabled;
-        set => settingsService.IsUtcNormalizationEnabled = value;
+        get => _settingsService.IsUtcNormalizationEnabled;
+        set => _settingsService.IsUtcNormalizationEnabled = value;
     }
 
     public int ParallelLimit
     {
-        get => settingsService.ParallelLimit;
-        set => settingsService.ParallelLimit = Math.Clamp(value, 1, 10);
+        get => _settingsService.ParallelLimit;
+        set => _settingsService.ParallelLimit = Math.Clamp(value, 1, 10);
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        if (disposing)
+        {
+            _eventRoot.Dispose();
+        }
+
+        base.Dispose(disposing);
     }
 }

DiscordChatExporter.Gui/ViewModels/Framework/DialogManager.cs

@@ -1,72 +0,0 @@
-using System;
-using System.IO;
-using System.Threading;
-using System.Threading.Tasks;
-using MaterialDesignThemes.Wpf;
-using Microsoft.Win32;
-using Stylet;
-
-namespace DiscordChatExporter.Gui.ViewModels.Framework;
-
-public class DialogManager(IViewManager viewManager) : IDisposable
-{
-    private readonly SemaphoreSlim _dialogLock = new(1, 1);
-
-    public async ValueTask<T?> ShowDialogAsync<T>(DialogScreen<T> dialogScreen)
-    {
-        var view = viewManager.CreateAndBindViewForModelIfNecessary(dialogScreen);
-
-        void OnDialogOpened(object? openSender, DialogOpenedEventArgs openArgs)
-        {
-            void OnScreenClosed(object? closeSender, EventArgs closeArgs)
-            {
-                try
-                {
-                    openArgs.Session.Close();
-                }
-                catch (InvalidOperationException)
-                {
-                    // Race condition: dialog is already being closed
-                }
-
-                dialogScreen.Closed -= OnScreenClosed;
-            }
-            dialogScreen.Closed += OnScreenClosed;
-        }
-
-        await _dialogLock.WaitAsync();
-        try
-        {
-            await DialogHost.Show(view, OnDialogOpened);
-            return dialogScreen.DialogResult;
-        }
-        finally
-        {
-            _dialogLock.Release();
-        }
-    }
-
-    public string? PromptSaveFilePath(string filter = "All files|*.*", string defaultFilePath = "")
-    {
-        var dialog = new SaveFileDialog
-        {
-            Filter = filter,
-            AddExtension = true,
-            FileName = defaultFilePath,
-            DefaultExt = Path.GetExtension(defaultFilePath)
-        };
-
-        return dialog.ShowDialog() == true ? dialog.FileName : null;
-    }
-
-    public string? PromptDirectoryPath(string defaultDirPath = "")
-    {
-        var dialog = new OpenFolderDialog { InitialDirectory = defaultDirPath };
-        return dialog.ShowDialog() == true ? dialog.FolderName : null;
-    }
-
-    public void Dispose()
-    {
-        _dialogLock.Dispose();
-    }
-}

DiscordChatExporter.Gui/ViewModels/Framework/DialogScreen.cs

@@ -1,19 +0,0 @@
-using System;
-using Stylet;
-
-namespace DiscordChatExporter.Gui.ViewModels.Framework;
-
-public abstract class DialogScreen<T> : PropertyChangedBase
-{
-    public T? DialogResult { get; private set; }
-
-    public event EventHandler? Closed;
-
-    public void Close(T dialogResult)
-    {
-        DialogResult = dialogResult;
-        Closed?.Invoke(this, EventArgs.Empty);
-    }
-}
-
-public abstract class DialogScreen : DialogScreen<bool?>;

DiscordChatExporter.Gui/ViewModels/Framework/IViewModelFactory.cs

@@ -1,16 +0,0 @@
-using DiscordChatExporter.Gui.ViewModels.Components;
-using DiscordChatExporter.Gui.ViewModels.Dialogs;
-
-namespace DiscordChatExporter.Gui.ViewModels.Framework;
-
-// Used to instantiate new view models while making use of dependency injection
-public interface IViewModelFactory
-{
-    DashboardViewModel CreateDashboardViewModel();
-
-    ExportSetupViewModel CreateExportSetupViewModel();
-
-    MessageBoxViewModel CreateMessageBoxViewModel();
-
-    SettingsViewModel CreateSettingsViewModel();
-}

DiscordChatExporter.Gui/ViewModels/MainViewModel.cs

@@ -0,0 +1,127 @@
+using System;
+using System.Threading.Tasks;
+using Avalonia;
+using CommunityToolkit.Mvvm.Input;
+using DiscordChatExporter.Gui.Framework;
+using DiscordChatExporter.Gui.Services;
+using DiscordChatExporter.Gui.Utils;
+using DiscordChatExporter.Gui.Utils.Extensions;
+using DiscordChatExporter.Gui.ViewModels.Components;
+
+namespace DiscordChatExporter.Gui.ViewModels;
+
+public partial class MainViewModel(
+    ViewModelManager viewModelManager,
+    DialogManager dialogManager,
+    SnackbarManager snackbarManager,
+    SettingsService settingsService,
+    UpdateService updateService
+) : ViewModelBase
+{
+    public string Title { get; } = $"{Program.Name} v{Program.VersionString}";
+
+    public DashboardViewModel Dashboard { get; } = viewModelManager.CreateDashboardViewModel();
+
+    private async Task ShowUkraineSupportMessageAsync()
+    {
+        if (!settingsService.IsUkraineSupportMessageEnabled)
+            return;
+
+        var dialog = viewModelManager.CreateMessageBoxViewModel(
+            "Thank you for supporting Ukraine!",
+            """
+            As Russia wages a genocidal war against my country, I'm grateful to everyone who continues to stand with Ukraine in our fight for freedom.
+
+            Click LEARN MORE to find ways that you can help.
+            """,
+            "LEARN MORE",
+            "CLOSE"
+        );
+
+        // Disable this message in the future
+        settingsService.IsUkraineSupportMessageEnabled = false;
+        settingsService.Save();
+
+        if (await dialogManager.ShowDialogAsync(dialog) == true)
+            ProcessEx.StartShellExecute("https://tyrrrz.me/ukraine?source=discordchatexporter");
+    }
+
+    private async Task CheckForUpdatesAsync()
+    {
+        try
+        {
+            var updateVersion = await updateService.CheckForUpdatesAsync();
+            if (updateVersion is null)
+                return;
+
+            snackbarManager.Notify($"Downloading update to {Program.Name} v{updateVersion}...");
+            await updateService.PrepareUpdateAsync(updateVersion);
+
+            snackbarManager.Notify(
+                "Update has been downloaded and will be installed when you exit",
+                "INSTALL NOW",
+                () =>
+                {
+                    updateService.FinalizeUpdate(true);
+
+                    if (Application.Current?.ApplicationLifetime?.TryShutdown(2) != true)
+                        Environment.Exit(2);
+                }
+            );
+        }
+        catch
+        {
+            // Failure to update shouldn't crash the application
+            snackbarManager.Notify("Failed to perform application update");
+        }
+    }
+
+    [RelayCommand]
+    private async Task InitializeAsync()
+    {
+        // Reset settings (needed to resolve the default dark mode setting)
+        settingsService.Reset();
+
+        // Load settings
+        settingsService.Load();
+
+        // Set the correct theme
+        if (settingsService.IsDarkModeEnabled)
+            App.SetDarkTheme();
+        else
+            App.SetLightTheme();
+
+        await ShowUkraineSupportMessageAsync();
+        await CheckForUpdatesAsync();
+
+        // App has just been updated, display the changelog
+        if (
+            settingsService.LastAppVersion is not null
+            && settingsService.LastAppVersion != Program.Version
+        )
+        {
+            snackbarManager.Notify(
+                $"Successfully updated to {Program.Name} v{Program.VersionString}",
+                "WHAT'S NEW",
+                () => ProcessEx.StartShellExecute(Program.LatestReleaseUrl)
+            );
+
+            settingsService.LastAppVersion = Program.Version;
+            settingsService.Save();
+        }
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        if (disposing)
+        {
+            // Save settings
+            settingsService.Save();
+
+            // Finalize pending updates
+            updateService.FinalizeUpdate(false);
+        }
+
+        base.Dispose(disposing);
+    }
+}

DiscordChatExporter.Gui/ViewModels/Messages/NotificationMessage.cs

@@ -1,3 +0,0 @@
-namespace DiscordChatExporter.Gui.ViewModels.Messages;
-
-public record NotificationMessage(string Text);

DiscordChatExporter.Gui/ViewModels/RootViewModel.cs

@@ -1,147 +0,0 @@
-using System;
-using System.Threading.Tasks;
-using DiscordChatExporter.Gui.Services;
-using DiscordChatExporter.Gui.Utils;
-using DiscordChatExporter.Gui.ViewModels.Components;
-using DiscordChatExporter.Gui.ViewModels.Dialogs;
-using DiscordChatExporter.Gui.ViewModels.Framework;
-using DiscordChatExporter.Gui.ViewModels.Messages;
-using MaterialDesignThemes.Wpf;
-using Stylet;
-
-namespace DiscordChatExporter.Gui.ViewModels;
-
-public class RootViewModel : Screen, IHandle<NotificationMessage>, IDisposable
-{
-    private readonly IViewModelFactory _viewModelFactory;
-    private readonly DialogManager _dialogManager;
-    private readonly SettingsService _settingsService;
-    private readonly UpdateService _updateService;
-
-    public SnackbarMessageQueue Notifications { get; } = new(TimeSpan.FromSeconds(5));
-
-    public DashboardViewModel Dashboard { get; }
-
-    public RootViewModel(
-        IViewModelFactory viewModelFactory,
-        IEventAggregator eventAggregator,
-        DialogManager dialogManager,
-        SettingsService settingsService,
-        UpdateService updateService
-    )
-    {
-        _viewModelFactory = viewModelFactory;
-        _dialogManager = dialogManager;
-        _settingsService = settingsService;
-        _updateService = updateService;
-
-        eventAggregator.Subscribe(this);
-
-        Dashboard = _viewModelFactory.CreateDashboardViewModel();
-
-        DisplayName = $"{App.Name} v{App.VersionString}";
-    }
-
-    private async Task ShowUkraineSupportMessageAsync()
-    {
-        if (!_settingsService.IsUkraineSupportMessageEnabled)
-            return;
-
-        var dialog = _viewModelFactory.CreateMessageBoxViewModel(
-            "Thank you for supporting Ukraine!",
-            """
-            As Russia wages a genocidal war against my country, I'm grateful to everyone who continues to stand with Ukraine in our fight for freedom.
-
-            Click LEARN MORE to find ways that you can help.
-            """,
-            "LEARN MORE",
-            "CLOSE"
-        );
-
-        // Disable this message in the future
-        _settingsService.IsUkraineSupportMessageEnabled = false;
-        _settingsService.Save();
-
-        if (await _dialogManager.ShowDialogAsync(dialog) == true)
-            ProcessEx.StartShellExecute("https://tyrrrz.me/ukraine?source=discordchatexporter");
-    }
-
-    private async ValueTask CheckForUpdatesAsync()
-    {
-        try
-        {
-            var updateVersion = await _updateService.CheckForUpdatesAsync();
-            if (updateVersion is null)
-                return;
-
-            Notifications.Enqueue($"Downloading update to {App.Name} v{updateVersion}...");
-            await _updateService.PrepareUpdateAsync(updateVersion);
-
-            Notifications.Enqueue(
-                "Update has been downloaded and will be installed when you exit",
-                "INSTALL NOW",
-                () =>
-                {
-                    _updateService.FinalizeUpdate(true);
-                    RequestClose();
-                }
-            );
-        }
-        catch
-        {
-            // Failure to update shouldn't crash the application
-            Notifications.Enqueue("Failed to perform application update");
-        }
-    }
-
-    public async void OnViewFullyLoaded()
-    {
-        await ShowUkraineSupportMessageAsync();
-        await CheckForUpdatesAsync();
-    }
-
-    protected override void OnViewLoaded()
-    {
-        base.OnViewLoaded();
-
-        _settingsService.Load();
-
-        // Sync the theme with settings
-        if (_settingsService.IsDarkModeEnabled)
-        {
-            App.SetDarkTheme();
-        }
-        else
-        {
-            App.SetLightTheme();
-        }
-
-        // App has just been updated, display the changelog
-        if (
-            _settingsService.LastAppVersion is not null
-            && _settingsService.LastAppVersion != App.Version
-        )
-        {
-            Notifications.Enqueue(
-                $"Successfully updated to {App.Name} v{App.VersionString}",
-                "WHAT'S NEW",
-                () => ProcessEx.StartShellExecute(App.LatestReleaseUrl)
-            );
-
-            _settingsService.LastAppVersion = App.Version;
-            _settingsService.Save();
-        }
-    }
-
-    protected override void OnClose()
-    {
-        base.OnClose();
-
-        _settingsService.Save();
-        _updateService.FinalizeUpdate(false);
-    }
-
-    public void Handle(NotificationMessage message) => Notifications.Enqueue(message.Text);
-
-    public void Dispose() => Notifications.Dispose();
-}

DiscordChatExporter.Gui/Views/Components/DashboardView.axaml

@@ -0,0 +1,363 @@
+<UserControl
+    x:Class="DiscordChatExporter.Gui.Views.Components.DashboardView"
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:asyncImageLoader="clr-namespace:AsyncImageLoader;assembly=AsyncImageLoader.Avalonia"
+    xmlns:components="clr-namespace:DiscordChatExporter.Gui.ViewModels.Components"
+    xmlns:controls="clr-namespace:DiscordChatExporter.Gui.Views.Controls"
+    xmlns:converters="clr-namespace:DiscordChatExporter.Gui.Converters"
+    xmlns:materialIcons="clr-namespace:Material.Icons.Avalonia;assembly=Material.Icons.Avalonia"
+    xmlns:materialStyles="clr-namespace:Material.Styles.Controls;assembly=Material.Styles"
+    x:Name="UserControl"
+    Loaded="UserControl_OnLoaded">
+    <Design.DataContext>
+        <components:DashboardViewModel />
+    </Design.DataContext>
+
+    <DockPanel>
+        <!--  Header  -->
+        <StackPanel
+            Background="{DynamicResource MaterialDarkBackgroundBrush}"
+            DockPanel.Dock="Top"
+            Orientation="Vertical">
+            <Grid Margin="12,12,8,12" ColumnDefinitions="*,Auto">
+                <materialStyles:Card Grid.Column="0">
+                    <!--  Token  -->
+                    <TextBox
+                        x:Name="TokenValueTextBox"
+                        FontSize="16"
+                        PasswordChar="*"
+                        RevealPassword="{Binding $self.IsFocused}"
+                        Text="{Binding Token}"
+                        Theme="{DynamicResource SoloTextBox}"
+                        Watermark="Token">
+                        <TextBox.InnerLeftContent>
+                            <materialIcons:MaterialIcon
+                                Grid.Column="0"
+                                Width="24"
+                                Height="24"
+                                Margin="4,0,8,0"
+                                Foreground="{DynamicResource PrimaryHueMidBrush}"
+                                Kind="Key" />
+                        </TextBox.InnerLeftContent>
+                        <TextBox.InnerRightContent>
+                            <Button
+                                Grid.Column="2"
+                                Margin="8,0,0,0"
+                                Padding="4"
+                                Command="{Binding PullGuildsCommand}"
+                                IsDefault="True"
+                                Theme="{DynamicResource MaterialFlatButton}"
+                                ToolTip.Tip="Pull available servers and channels (Enter)">
+                                <materialIcons:MaterialIcon
+                                    Width="24"
+                                    Height="24"
+                                    Kind="ArrowRight" />
+                            </Button>
+                        </TextBox.InnerRightContent>
+                    </TextBox>
+                </materialStyles:Card>
+
+                <!--  Settings button  -->
+                <Button
+                    Grid.Column="1"
+                    Margin="8,0,0,0"
+                    Padding="8"
+                    VerticalAlignment="Center"
+                    Command="{Binding ShowSettingsCommand}"
+                    Foreground="{DynamicResource MaterialDarkForegroundBrush}"
+                    Theme="{DynamicResource MaterialFlatButton}"
+                    ToolTip.Tip="Settings">
+                    <materialIcons:MaterialIcon
+                        Width="24"
+                        Height="24"
+                        Kind="Settings" />
+                </Button>
+            </Grid>
+
+            <!--  Progress  -->
+            <ProgressBar
+                Height="2"
+                Background="Transparent"
+                IsIndeterminate="{Binding IsProgressIndeterminate}"
+                Value="{Binding Progress.Current.Fraction, Mode=OneWay}" />
+        </StackPanel>
+
+        <!--  Body  -->
+        <Panel
+            Background="{DynamicResource MaterialCardBackgroundBrush}"
+            DockPanel.Dock="Bottom"
+            IsEnabled="{Binding !IsBusy}">
+            <Panel.Styles>
+                <Style Selector="Panel">
+                    <Style Selector="^:disabled">
+                        <Setter Property="Opacity" Value="0.5" />
+                    </Style>
+                </Style>
+            </Panel.Styles>
+            <!--  Placeholder / usage instructions  -->
+            <Panel IsVisible="{Binding !AvailableGuilds.Count}">
+                <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
+                    <TextBlock
+                        Margin="32,16"
+                        FontSize="14"
+                        FontWeight="Light"
+                        LineHeight="23">
+                        <!--  User token  -->
+                        <InlineUIContainer>
+                            <materialIcons:MaterialIcon
+                                Width="18"
+                                Height="18"
+                                Margin="0,-2,0,0"
+                                Foreground="{DynamicResource PrimaryHueMidBrush}"
+                                Kind="Account" />
+                        </InlineUIContainer>
+                        <Run Text="" />
+                        <Run
+                            FontSize="16"
+                            FontWeight="SemiBold"
+                            Text="To get the token for your personal account:" />
+                        <LineBreak />
+
+                        <Run Text="*  Automating user accounts is technically against TOS —" />
+                        <Run FontWeight="SemiBold" Text="use at your own risk" /><Run Text="!" />
+                        <LineBreak />
+
+                        <Run Text="1. Open Discord in your" />
+                        <controls:HyperLink Command="{Binding OpenDiscordCommand}" Text="web browser" />
+                        <Run Text="and login" />
+                        <LineBreak />
+
+                        <Run Text="2. Open any server or direct message channel" />
+                        <LineBreak />
+
+                        <Run Text="3. Press" />
+                        <Run FontWeight="SemiBold" Text="Ctrl+Shift+I" />
+                        <Run Text="to show developer tools" />
+                        <LineBreak />
+
+                        <Run Text="4. Navigate to the" />
+                        <Run FontWeight="SemiBold" Text="Network" />
+                        <Run Text="tab" />
+                        <LineBreak />
+
+                        <Run Text="5. Press" />
+                        <Run FontWeight="SemiBold" Text="Ctrl+R" />
+                        <Run Text="to reload" />
+                        <LineBreak />
+
+                        <Run Text="6. Switch between random channels to trigger network requests" />
+                        <LineBreak />
+
+                        <Run Text="7. Search for a request that starts with" />
+                        <Run FontWeight="SemiBold" Text="messages" />
+                        <LineBreak />
+
+                        <Run Text="8. Select the" />
+                        <Run FontWeight="SemiBold" Text="Headers" />
+                        <Run Text="tab on the right" />
+                        <LineBreak />
+
+                        <Run Text="9. Scroll down to the" />
+                        <Run FontWeight="SemiBold" Text="Request Headers" />
+                        <Run Text="section" />
+                        <LineBreak />
+
+                        <Run Text="10. Copy the value of the" />
+                        <Run FontWeight="SemiBold" Text="authorization" />
+                        <Run Text="header" />
+                        <LineBreak />
+                        <LineBreak />
+
+                        <!--  Bot token  -->
+                        <InlineUIContainer>
+                            <materialIcons:MaterialIcon
+                                Width="18"
+                                Height="18"
+                                Margin="0,-2,0,0"
+                                Foreground="{DynamicResource PrimaryHueMidBrush}"
+                                Kind="Robot" />
+                        </InlineUIContainer>
+                        <Run Text="" />
+                        <Run
+                            FontSize="16"
+                            FontWeight="SemiBold"
+                            Text="To get the token for your bot:" />
+                        <LineBreak />
+
+                        <Run Text="1. Open Discord" />
+                        <controls:HyperLink Command="{Binding OpenDiscordDeveloperPortalCommand}" Text="developer portal" />
+                        <LineBreak />
+
+                        <Run Text="2. Open your application's settings" />
+                        <LineBreak />
+
+                        <Run Text="3. Navigate to the" />
+                        <Run FontWeight="SemiBold" Text="Bot" />
+                        <Run Text="section on the left" />
+                        <LineBreak />
+
+                        <Run Text="4. Under" />
+                        <Run FontWeight="SemiBold" Text="Token" />
+                        <Run Text="click" />
+                        <Run FontWeight="SemiBold" Text="Copy" />
+                        <LineBreak />
+
+                        <Run Text="*  Your bot needs to have the" />
+                        <Run FontWeight="SemiBold" Text="Message Content Intent" />
+                        <Run Text="enabled to read messages" />
+                        <LineBreak />
+                        <LineBreak />
+
+                        <Run Text="If you have questions or issues, please refer to the" />
+                        <controls:HyperLink Command="{Binding ShowHelpCommand}" Text="documentation" />
+                    </TextBlock>
+                </ScrollViewer>
+            </Panel>
+
+            <!--  Guilds and channels  -->
+            <Grid ColumnDefinitions="Auto,*" IsVisible="{Binding !!AvailableGuilds.Count}">
+                <!--  Guilds  -->
+                <Border
+                    Grid.Column="0"
+                    BorderBrush="{DynamicResource MaterialDividerBrush}"
+                    BorderThickness="0,0,1,0">
+                    <ListBox
+                        x:Name="AvailableGuildsListBox"
+                        ItemsSource="{Binding AvailableGuilds}"
+                        ScrollViewer.VerticalScrollBarVisibility="Hidden"
+                        SelectedItem="{Binding SelectedGuild}"
+                        SelectionChanged="AvailableGuildsListBox_OnSelectionChanged"
+                        SelectionMode="Single">
+                        <ListBox.Styles>
+                            <Style Selector="ListBox">
+                                <Style Selector="^ ListBoxItem">
+                                    <Setter Property="Padding" Value="0" />
+                                    <Setter Property="Cursor" Value="Hand" />
+                                </Style>
+                            </Style>
+                        </ListBox.Styles>
+                        <ListBox.ItemTemplate>
+                            <DataTemplate>
+                                <Panel Background="Transparent" ToolTip.Tip="{Binding Name}">
+                                    <!--  Guild icon placeholder  -->
+                                    <Ellipse
+                                        Width="48"
+                                        Height="48"
+                                        Margin="12"
+                                        Fill="{DynamicResource MaterialDividerBrush}" />
+
+                                    <!--  Guild icon  -->
+                                    <Ellipse
+                                        Width="48"
+                                        Height="48"
+                                        Margin="12">
+                                        <Ellipse.Fill>
+                                            <ImageBrush asyncImageLoader:ImageBrushLoader.Source="{Binding IconUrl}" />
+                                        </Ellipse.Fill>
+                                    </Ellipse>
+                                </Panel>
+                            </DataTemplate>
+                        </ListBox.ItemTemplate>
+                    </ListBox>
+                </Border>
+
+                <!--  Channels  -->
+                <Border Grid.Column="1">
+                    <TreeView
+                        x:Name="AvailableChannelsTreeView"
+                        AutoScrollToSelectedItem="False"
+                        ItemsSource="{Binding AvailableChannels}"
+                        SelectedItems="{Binding SelectedChannels}"
+                        SelectionChanged="AvailableChannelsTreeView_OnSelectionChanged"
+                        SelectionMode="Multiple"
+                        TextSearch.Text="Name">
+                        <TreeView.Styles>
+                            <Style Selector="TreeView">
+                                <Style Selector="^ TreeViewItem">
+                                    <Setter Property="Padding" Value="0" />
+                                    <Setter Property="Cursor" Value="Hand" />
+                                </Style>
+                            </Style>
+                        </TreeView.Styles>
+                        <TreeView.ItemTemplate>
+                            <TreeDataTemplate ItemsSource="{Binding Children}">
+                                <Grid
+                                    Background="Transparent"
+                                    Classes.category="{Binding Channel.IsCategory}"
+                                    ColumnDefinitions="Auto,*,Auto">
+                                    <Grid.Styles>
+                                        <Style Selector="Grid">
+                                            <Style Selector="^:not(.category)">
+                                                <Setter Property="ToolTip.Tip">
+                                                    <Template>
+                                                        <TextBlock>
+                                                            <Run Text="Last message sent:" />
+                                                            <Run FontWeight="SemiBold" Text="{Binding Channel.LastMessageId, Converter={x:Static converters:SnowflakeToTimestampStringConverter.Instance}, TargetNullValue=never, Mode=OneWay}" />
+                                                        </TextBlock>
+                                                    </Template>
+                                                </Setter>
+                                            </Style>
+                                        </Style>
+                                    </Grid.Styles>
+
+                                    <!--  Channel icon  -->
+                                    <materialIcons:MaterialIcon
+                                        Grid.Column="0"
+                                        Margin="0,0,4,0"
+                                        Classes.voice="{Binding Channel.IsVoice}"
+                                        IsVisible="{Binding !Channel.IsCategory}">
+                                        <materialIcons:MaterialIcon.Styles>
+                                            <Style Selector="materialIcons|MaterialIcon">
+                                                <Setter Property="Kind" Value="Pound" />
+
+                                                <Style Selector="^.voice">
+                                                    <Setter Property="Kind" Value="VolumeHigh" />
+                                                </Style>
+                                            </Style>
+                                        </materialIcons:MaterialIcon.Styles>
+                                    </materialIcons:MaterialIcon>
+
+                                    <!--  Channel name  -->
+                                    <TextBlock
+                                        Grid.Column="1"
+                                        Margin="0,12"
+                                        FontSize="14"
+                                        Text="{Binding Channel.Name, Mode=OneWay}" />
+
+                                    <!--  Checkmark  -->
+                                    <materialIcons:MaterialIcon
+                                        Grid.Column="2"
+                                        Width="24"
+                                        Height="24"
+                                        Margin="16,0"
+                                        IsVisible="{Binding $parent[TreeViewItem].IsSelected}"
+                                        Kind="Check" />
+                                </Grid>
+                            </TreeDataTemplate>
+                        </TreeView.ItemTemplate>
+                    </TreeView>
+                </Border>
+            </Grid>
+
+            <!--  Export button  -->
+            <Button
+                Width="56"
+                Height="56"
+                Margin="32,24"
+                Padding="0"
+                HorizontalAlignment="Right"
+                VerticalAlignment="Bottom"
+                Background="{DynamicResource MaterialSecondaryMidBrush}"
+                Command="{Binding ExportCommand}"
+                Foreground="{DynamicResource MaterialSecondaryMidForegroundBrush}"
+                IsVisible="{Binding $self.IsEffectivelyEnabled}"
+                Theme="{DynamicResource MaterialIconButton}">
+                <materialIcons:MaterialIcon
+                    Width="32"
+                    Height="32"
+                    Kind="Download" />
+            </Button>
+        </Panel>
+    </DockPanel>
+</UserControl>

DiscordChatExporter.Gui/Views/Components/DashboardView.axaml.cs

@@ -0,0 +1,37 @@
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using DiscordChatExporter.Core.Discord.Data;
+using DiscordChatExporter.Gui.Framework;
+using DiscordChatExporter.Gui.ViewModels.Components;
+
+namespace DiscordChatExporter.Gui.Views.Components;
+
+public partial class DashboardView : UserControl<DashboardViewModel>
+{
+    public DashboardView() => InitializeComponent();
+
+    private void UserControl_OnLoaded(object? sender, RoutedEventArgs args)
+    {
+        DataContext.InitializeCommand.Execute(null);
+        TokenValueTextBox.Focus();
+    }
+
+    private void AvailableGuildsListBox_OnSelectionChanged(
+        object? sender,
+        SelectionChangedEventArgs args
+    ) => DataContext.PullChannelsCommand.Execute(null);
+
+    private void AvailableChannelsTreeView_OnSelectionChanged(
+        object? sender,
+        SelectionChangedEventArgs args
+    )
+    {
+        // Hack: unselect categories because they cannot be exported
+        foreach (var item in args.AddedItems.OfType<ChannelNode>().Where(x => x.Channel.IsCategory))
+        {
+            if (AvailableChannelsTreeView.TreeContainerFromItem(item) is TreeViewItem container)
+                container.IsSelected = false;
+        }
+    }
+}

DiscordChatExporter.Gui/Views/Components/DashboardView.xaml

@@ -1,440 +0,0 @@
-<UserControl
-    x:Class="DiscordChatExporter.Gui.Views.Components.DashboardView"
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:b="http://schemas.microsoft.com/xaml/behaviors"
-    xmlns:behaviors="clr-namespace:DiscordChatExporter.Gui.Behaviors"
-    xmlns:componentModel="clr-namespace:System.ComponentModel;assembly=WindowsBase"
-    xmlns:components="clr-namespace:DiscordChatExporter.Gui.ViewModels.Components"
-    xmlns:controls="clr-namespace:DiscordChatExporter.Gui.Views.Controls"
-    xmlns:converters="clr-namespace:DiscordChatExporter.Gui.Converters"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-    xmlns:data="clr-namespace:DiscordChatExporter.Core.Discord.Data;assembly=DiscordChatExporter.Core"
-    xmlns:globalization="clr-namespace:System.Globalization;assembly=System.Runtime"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
-    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-    xmlns:s="https://github.com/canton7/Stylet"
-    d:DataContext="{d:DesignInstance Type=components:DashboardViewModel}"
-    FocusManager.FocusedElement="{Binding ElementName=TokenValueTextBox}"
-    Loaded="{s:Action OnViewLoaded}"
-    mc:Ignorable="d">
-    <UserControl.Resources>
-        <!--  Collection view for DM channels  -->
-        <CollectionViewSource x:Key="AvailableDirectChannelsViewSource" Source="{Binding AvailableChannels, Mode=OneWay}">
-            <CollectionViewSource.SortDescriptions>
-                <componentModel:SortDescription Direction="Descending" PropertyName="LastMessageId" />
-                <componentModel:SortDescription Direction="Ascending" PropertyName="Name" />
-            </CollectionViewSource.SortDescriptions>
-        </CollectionViewSource>
-        <!--  Collection view for guild channels  -->
-        <CollectionViewSource x:Key="AvailableChannelsViewSource" Source="{Binding AvailableChannels, Mode=OneWay}">
-            <CollectionViewSource.GroupDescriptions>
-                <PropertyGroupDescription Converter="{x:Static converters:ChannelToGroupKeyConverter.Instance}" />
-            </CollectionViewSource.GroupDescriptions>
-            <CollectionViewSource.SortDescriptions>
-                <componentModel:SortDescription Direction="Ascending" PropertyName="IsThread" />
-                <componentModel:SortDescription Direction="Ascending" PropertyName="Position" />
-                <componentModel:SortDescription Direction="Ascending" PropertyName="Name" />
-            </CollectionViewSource.SortDescriptions>
-        </CollectionViewSource>
-    </UserControl.Resources>
-
-    <Grid>
-        <Grid.RowDefinitions>
-            <RowDefinition Height="Auto" />
-            <RowDefinition Height="Auto" />
-            <RowDefinition Height="*" />
-            <RowDefinition Height="Auto" />
-        </Grid.RowDefinitions>
-
-        <!--  Toolbar  -->
-        <Grid Grid.Row="0" Background="{DynamicResource MaterialDesignDarkBackground}">
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="*" />
-                <ColumnDefinition Width="Auto" />
-            </Grid.ColumnDefinitions>
-
-            <materialDesign:Card
-                Grid.Row="0"
-                Grid.Column="0"
-                Margin="12,12,0,12">
-                <Grid>
-                    <Grid.ColumnDefinitions>
-                        <ColumnDefinition Width="Auto" />
-                        <ColumnDefinition Width="*" />
-                        <ColumnDefinition Width="Auto" />
-                    </Grid.ColumnDefinitions>
-
-                    <!--  Token icon  -->
-                    <materialDesign:PackIcon
-                        Grid.Column="0"
-                        Width="24"
-                        Height="24"
-                        Margin="8"
-                        VerticalAlignment="Center"
-                        Foreground="{DynamicResource PrimaryHueMidBrush}"
-                        Kind="Key" />
-
-                    <!--  Token  -->
-                    <controls:RevealablePasswordBox
-                        x:Name="TokenValueTextBox"
-                        Grid.Column="1"
-                        Margin="0,6,6,8"
-                        VerticalAlignment="Bottom"
-                        materialDesign:HintAssist.Hint="Token"
-                        BorderThickness="0"
-                        FontFamily="Consolas"
-                        FontSize="16"
-                        Password="{Binding Token, UpdateSourceTrigger=PropertyChanged}">
-                        <controls:RevealablePasswordBox.Style>
-                            <Style TargetType="{x:Type controls:RevealablePasswordBox}">
-                                <Style.Triggers>
-                                    <DataTrigger Binding="{Binding IsMouseOver, RelativeSource={RelativeSource AncestorType=materialDesign:Card}}" Value="True">
-                                        <Setter Property="IsRevealed" Value="True" />
-                                    </DataTrigger>
-                                    <DataTrigger Binding="{Binding IsKeyboardFocusWithin, RelativeSource={RelativeSource AncestorType=materialDesign:Card}}" Value="True">
-                                        <Setter Property="IsRevealed" Value="True" />
-                                    </DataTrigger>
-                                </Style.Triggers>
-                            </Style>
-                        </controls:RevealablePasswordBox.Style>
-                    </controls:RevealablePasswordBox>
-
-                    <!--  Pull guilds button  -->
-                    <Button
-                        Grid.Column="2"
-                        Margin="0,6,6,6"
-                        Padding="4"
-                        Command="{s:Action PullGuilds}"
-                        IsDefault="True"
-                        Style="{DynamicResource MaterialDesignFlatButton}"
-                        ToolTip="Pull available guilds and channels (Enter)">
-                        <materialDesign:PackIcon
-                            Width="24"
-                            Height="24"
-                            Kind="ArrowRight" />
-                    </Button>
-                </Grid>
-            </materialDesign:Card>
-
-            <!--  Settings button  -->
-            <Button
-                Grid.Column="1"
-                Margin="6"
-                Padding="4"
-                Command="{s:Action ShowSettings}"
-                Foreground="{DynamicResource MaterialDesignDarkForeground}"
-                Style="{DynamicResource MaterialDesignFlatButton}"
-                ToolTip="Settings">
-                <Button.Resources>
-                    <SolidColorBrush x:Key="MaterialDesignFlatButtonClick" Color="#4C4C4C" />
-                </Button.Resources>
-                <materialDesign:PackIcon
-                    Width="24"
-                    Height="24"
-                    Kind="Settings" />
-            </Button>
-        </Grid>
-
-        <!--  Progress bar  -->
-        <ProgressBar
-            Grid.Row="1"
-            Background="{DynamicResource MaterialDesignDarkBackground}"
-            IsIndeterminate="{Binding IsProgressIndeterminate}"
-            Value="{Binding Progress.Current.Fraction, Mode=OneWay}" />
-
-        <!--  Content  -->
-        <Grid
-            Grid.Row="2"
-            Background="{DynamicResource MaterialDesignCardBackground}"
-            IsEnabled="{Binding IsBusy, Converter={x:Static converters:InverseBoolConverter.Instance}}">
-            <!--  Placeholder / usage instructions  -->
-            <Grid Visibility="{Binding AvailableGuilds, Converter={x:Static s:BoolToVisibilityConverter.InverseInstance}}">
-                <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
-                    <TextBlock
-                        Margin="32,16"
-                        FontSize="14"
-                        FontWeight="Light"
-                        LineHeight="20">
-                        <!--  User token  -->
-                        <InlineUIContainer>
-                            <materialDesign:PackIcon
-                                Margin="0,0,2,-2"
-                                Foreground="{DynamicResource PrimaryHueMidBrush}"
-                                Kind="Account" />
-                        </InlineUIContainer>
-                        <Run
-                            FontSize="16"
-                            FontWeight="SemiBold"
-                            Text="To get the token for your personal account:" />
-                        <LineBreak />
-
-                        <Run Text="*  Automating user accounts is technically against TOS —" />
-                        <Run FontWeight="SemiBold" Text="use at your own risk" /><Run Text="!" />
-                        <LineBreak />
-
-                        <Run Text="1. Open Discord in your" />
-                        <Hyperlink Command="{s:Action OpenDiscord}">
-                            <Run Text="web browser" />
-                        </Hyperlink>
-                        <Run Text="and login" />
-                        <LineBreak />
-
-                        <Run Text="2. Open any server or direct message channel" />
-                        <LineBreak />
-
-                        <Run Text="3. Press" />
-                        <Run FontWeight="SemiBold" Text="Ctrl+Shift+I" />
-                        <Run Text="to show developer tools" />
-                        <LineBreak />
-
-                        <Run Text="4. Navigate to the" />
-                        <Run FontWeight="SemiBold" Text="Network" />
-                        <Run Text="tab" />
-                        <LineBreak />
-
-                        <Run Text="5. Press" />
-                        <Run FontWeight="SemiBold" Text="Ctrl+R" />
-                        <Run Text="to reload" />
-                        <LineBreak />
-
-                        <Run Text="6. Switch between random channels to trigger network requests" />
-                        <LineBreak />
-
-                        <Run Text="7. Search for a request that starts with" />
-                        <Run FontWeight="SemiBold" Text="messages" />
-                        <LineBreak />
-
-                        <Run Text="8. Select the" />
-                        <Run FontWeight="SemiBold" Text="Headers" />
-                        <Run Text="tab on the right" />
-                        <LineBreak />
-
-                        <Run Text="9. Scroll down to the" />
-                        <Run FontWeight="SemiBold" Text="Request Headers" />
-                        <Run Text="section" />
-                        <LineBreak />
-
-                        <Run Text="10. Copy the value of the" />
-                        <Run FontWeight="SemiBold" Text="authorization" />
-                        <Run Text="header" />
-                        <LineBreak />
-                        <LineBreak />
-
-                        <!--  Bot token  -->
-                        <InlineUIContainer>
-                            <materialDesign:PackIcon
-                                Margin="0,0,2,-2"
-                                Foreground="{DynamicResource PrimaryHueMidBrush}"
-                                Kind="Robot" />
-                        </InlineUIContainer>
-                        <Run
-                            FontSize="16"
-                            FontWeight="SemiBold"
-                            Text="To get the token for your bot:" />
-                        <LineBreak />
-
-                        <Run Text="1. Open Discord" />
-                        <Hyperlink Command="{s:Action OpenDiscordDeveloperPortal}">
-                            <Run Text="developer portal" />
-                        </Hyperlink>
-                        <LineBreak />
-
-                        <Run Text="2. Open your application's settings" />
-                        <LineBreak />
-
-                        <Run Text="3. Navigate to the" />
-                        <Run FontWeight="SemiBold" Text="Bot" />
-                        <Run Text="section on the left" />
-                        <LineBreak />
-
-                        <Run Text="4. Under" />
-                        <Run FontWeight="SemiBold" Text="Token" />
-                        <Run Text="click" />
-                        <Run FontWeight="SemiBold" Text="Copy" />
-                        <LineBreak />
-
-                        <Run Text="*  Your bot needs to have the" />
-                        <Run FontWeight="SemiBold" Text="Message Content Intent" />
-                        <Run Text="enabled to read messages" />
-                        <LineBreak />
-                        <LineBreak />
-
-                        <Run Text="If you have questions or issues, please refer to the" />
-                        <Hyperlink Command="{s:Action ShowHelp}">documentation</Hyperlink>
-                    </TextBlock>
-                </ScrollViewer>
-            </Grid>
-
-            <!--  Guilds and channels  -->
-            <Grid Background="{DynamicResource MaterialDesignCardBackground}" Visibility="{Binding AvailableGuilds, Converter={x:Static s:BoolToVisibilityConverter.Instance}}">
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="Auto" />
-                    <ColumnDefinition Width="*" />
-                </Grid.ColumnDefinitions>
-
-                <!--  Guilds  -->
-                <Border
-                    Grid.Column="0"
-                    BorderBrush="{DynamicResource MaterialDesignDivider}"
-                    BorderThickness="0,0,1,0">
-                    <ListBox
-                        ItemsSource="{Binding AvailableGuilds}"
-                        ScrollViewer.VerticalScrollBarVisibility="Hidden"
-                        SelectedItem="{Binding SelectedGuild}"
-                        SelectionMode="Single">
-                        <ListBox.ItemTemplate>
-                            <DataTemplate>
-                                <Grid
-                                    Margin="-8"
-                                    Background="Transparent"
-                                    Cursor="Hand"
-                                    MouseLeftButtonUp="{s:Action PullChannels}"
-                                    ToolTip="{Binding Name}">
-                                    <!--  Guild icon placeholder  -->
-                                    <Ellipse
-                                        Width="48"
-                                        Height="48"
-                                        Margin="12,4,12,4"
-                                        Fill="{DynamicResource MaterialDesignDivider}" />
-
-                                    <!--  Guild icon  -->
-                                    <Ellipse
-                                        Width="48"
-                                        Height="48"
-                                        Margin="12,4,12,4"
-                                        Stroke="{DynamicResource MaterialDesignDivider}"
-                                        StrokeThickness="1">
-                                        <Ellipse.Fill>
-                                            <ImageBrush ImageSource="{Binding IconUrl}" />
-                                        </Ellipse.Fill>
-                                    </Ellipse>
-                                </Grid>
-                            </DataTemplate>
-                        </ListBox.ItemTemplate>
-                    </ListBox>
-                </Border>
-
-                <!--  Channels  -->
-                <Border Grid.Column="1">
-                    <ListBox
-                        HorizontalContentAlignment="Stretch"
-                        SelectionMode="Extended"
-                        TextSearch.TextPath="Name"
-                        VirtualizingPanel.IsVirtualizingWhenGrouping="True">
-                        <b:Interaction.Behaviors>
-                            <behaviors:ChannelMultiSelectionListBoxBehavior SelectedItems="{Binding SelectedChannels}" />
-                        </b:Interaction.Behaviors>
-                        <ListBox.Style>
-                            <Style BasedOn="{StaticResource {x:Type ListBox}}" TargetType="{x:Type ListBox}">
-                                <Style.Triggers>
-                                    <DataTrigger Binding="{Binding SelectedGuild.IsDirect}" Value="True">
-                                        <Setter Property="ItemsSource" Value="{Binding Source={StaticResource AvailableDirectChannelsViewSource}}" />
-                                    </DataTrigger>
-                                    <DataTrigger Binding="{Binding SelectedGuild.IsDirect}" Value="False">
-                                        <Setter Property="ItemsSource" Value="{Binding Source={StaticResource AvailableChannelsViewSource}}" />
-                                    </DataTrigger>
-                                </Style.Triggers>
-                            </Style>
-                        </ListBox.Style>
-                        <ListBox.GroupStyle>
-                            <GroupStyle>
-                                <GroupStyle.ContainerStyle>
-                                    <Style TargetType="{x:Type GroupItem}">
-                                        <Setter Property="Template">
-                                            <Setter.Value>
-                                                <ControlTemplate d:DataContext="{x:Type CollectionViewGroup}">
-                                                    <Expander
-                                                        Margin="0"
-                                                        Padding="0"
-                                                        Background="Transparent"
-                                                        BorderBrush="{DynamicResource MaterialDesignDivider}"
-                                                        BorderThickness="0,0,0,1"
-                                                        Header="{Binding Name}"
-                                                        IsExpanded="False">
-                                                        <ItemsPresenter />
-                                                    </Expander>
-                                                </ControlTemplate>
-                                            </Setter.Value>
-                                        </Setter>
-                                    </Style>
-                                </GroupStyle.ContainerStyle>
-                            </GroupStyle>
-                        </ListBox.GroupStyle>
-                        <ListBox.ItemTemplate>
-                            <DataTemplate DataType="{x:Type data:Channel}">
-                                <Grid Margin="-8" Background="Transparent">
-                                    <Grid.InputBindings>
-                                        <MouseBinding Command="{s:Action Export}" MouseAction="LeftDoubleClick" />
-                                    </Grid.InputBindings>
-                                    <Grid.ColumnDefinitions>
-                                        <ColumnDefinition Width="Auto" />
-                                        <ColumnDefinition Width="*" />
-                                        <ColumnDefinition Width="Auto" />
-                                    </Grid.ColumnDefinitions>
-                                    <Grid.ToolTip>
-                                        <TextBlock>
-                                            <Run Text="Last message:" />
-                                            <Run FontWeight="SemiBold" Text="{Binding LastMessageId, Converter={x:Static converters:SnowflakeToDateTimeOffsetConverter.Instance}, ConverterCulture={x:Static globalization:CultureInfo.CurrentCulture}, TargetNullValue=never}" />
-                                        </TextBlock>
-                                    </Grid.ToolTip>
-
-                                    <!--  Channel icon  -->
-                                    <materialDesign:PackIcon
-                                        Grid.Column="0"
-                                        Margin="16,7,0,6"
-                                        VerticalAlignment="Center">
-                                        <materialDesign:PackIcon.Style>
-                                            <Style TargetType="{x:Type materialDesign:PackIcon}">
-                                                <Style.Triggers>
-                                                    <DataTrigger Binding="{Binding IsVoice}" Value="True">
-                                                        <Setter Property="Kind" Value="VolumeHigh" />
-                                                    </DataTrigger>
-                                                    <DataTrigger Binding="{Binding IsVoice}" Value="False">
-                                                        <Setter Property="Kind" Value="Pound" />
-                                                    </DataTrigger>
-                                                </Style.Triggers>
-                                            </Style>
-                                        </materialDesign:PackIcon.Style>
-                                    </materialDesign:PackIcon>
-
-                                    <!--  Channel name  -->
-                                    <TextBlock
-                                        Grid.Column="1"
-                                        Margin="3,8,8,8"
-                                        VerticalAlignment="Center"
-                                        FontSize="14"
-                                        Text="{Binding Name, Mode=OneWay}" />
-
-                                    <!--  Is selected checkmark  -->
-                                    <materialDesign:PackIcon
-                                        Grid.Column="2"
-                                        Width="24"
-                                        Height="24"
-                                        Margin="8,0"
-                                        VerticalAlignment="Center"
-                                        Kind="Check"
-                                        Visibility="{Binding IsSelected, RelativeSource={RelativeSource AncestorType={x:Type ListBoxItem}}, Converter={x:Static s:BoolToVisibilityConverter.Instance}, Mode=OneWay}" />
-                                </Grid>
-                            </DataTemplate>
-                        </ListBox.ItemTemplate>
-                    </ListBox>
-                </Border>
-            </Grid>
-
-            <!--  Export button  -->
-            <Button
-                Margin="32,24"
-                HorizontalAlignment="Right"
-                VerticalAlignment="Bottom"
-                Command="{s:Action Export}"
-                Style="{DynamicResource MaterialDesignFloatingActionAccentButton}"
-                Visibility="{Binding CanExport, Converter={x:Static s:BoolToVisibilityConverter.Instance}}">
-                <materialDesign:PackIcon
-                    Width="32"
-                    Height="32"
-                    Kind="Download" />
-            </Button>
-        </Grid>
-    </Grid>
-</UserControl>

DiscordChatExporter.Gui/Views/Components/DashboardView.xaml.cs

@@ -1,9 +0,0 @@
-namespace DiscordChatExporter.Gui.Views.Components;
-
-public partial class DashboardView
-{
-    public DashboardView()
-    {
-        InitializeComponent();
-    }
-}

DiscordChatExporter.Gui/Views/Controls/HyperLink.axaml

@@ -0,0 +1,19 @@
+<UserControl
+    x:Class="DiscordChatExporter.Gui.Views.Controls.HyperLink"
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <TextBlock
+        x:Name="TextBlock"
+        Cursor="Hand"
+        Foreground="{DynamicResource MaterialSecondaryDarkBrush}"
+        PointerReleased="TextBlock_OnPointerReleased"
+        Text="{Binding $parent[UserControl].Text, Mode=OneWay}">
+        <TextBlock.Styles>
+            <Style Selector="TextBlock">
+                <Style Selector="^:pointerover">
+                    <Setter Property="TextDecorations" Value="Underline" />
+                </Style>
+            </Style>
+        </TextBlock.Styles>
+    </TextBlock>
+</UserControl>

DiscordChatExporter.Gui/Views/Controls/HyperLink.axaml.cs

@@ -0,0 +1,49 @@
+using System.Windows.Input;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+
+namespace DiscordChatExporter.Gui.Views.Controls;
+
+public partial class HyperLink : UserControl
+{
+    public static readonly StyledProperty<string?> TextProperty =
+        TextBlock.TextProperty.AddOwner<HyperLink>();
+
+    public static readonly StyledProperty<ICommand?> CommandProperty =
+        Button.CommandProperty.AddOwner<HyperLink>();
+
+    public static readonly StyledProperty<object?> CommandParameterProperty =
+        Button.CommandParameterProperty.AddOwner<HyperLink>();
+
+    public HyperLink() => InitializeComponent();
+
+    public string? Text
+    {
+        get => GetValue(TextProperty);
+        set => SetValue(TextProperty, value);
+    }
+
+    public ICommand? Command
+    {
+        get => GetValue(CommandProperty);
+        set => SetValue(CommandProperty, value);
+    }
+
+    public object? CommandParameter
+    {
+        get => GetValue(CommandParameterProperty);
+        set => SetValue(CommandParameterProperty, value);
+    }
+
+    private void TextBlock_OnPointerReleased(object? sender, PointerReleasedEventArgs args)
+    {
+        if (Command is null)
+            return;
+
+        if (!Command.CanExecute(CommandParameter))
+            return;
+
+        Command.Execute(CommandParameter);
+    }
+}

DiscordChatExporter.Gui/Views/Controls/RevealablePasswordBox.xaml

@@ -1,24 +0,0 @@
-<UserControl
-    x:Class="DiscordChatExporter.Gui.Views.Controls.RevealablePasswordBox"
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
-    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-    xmlns:s="https://github.com/canton7/Stylet"
-    x:Name="Root"
-    mc:Ignorable="d">
-    <Grid>
-        <TextBox
-            materialDesign:TextFieldAssist.DecorationVisibility="Hidden"
-            BorderThickness="{Binding BorderThickness, ElementName=Root}"
-            Text="{Binding Password, ElementName=Root, UpdateSourceTrigger=PropertyChanged}"
-            Visibility="{Binding IsRevealed, ElementName=Root, Converter={x:Static s:BoolToVisibilityConverter.Instance}}" />
-        <PasswordBox
-            materialDesign:PasswordBoxAssist.Password="{Binding Password, ElementName=Root, UpdateSourceTrigger=PropertyChanged}"
-            materialDesign:TextFieldAssist.DecorationVisibility="Hidden"
-            BorderThickness="{Binding BorderThickness, ElementName=Root}"
-            IsEnabled="False"
-            Visibility="{Binding IsRevealed, ElementName=Root, Converter={x:Static s:BoolToVisibilityConverter.InverseInstance}}" />
-    </Grid>
-</UserControl>

DiscordChatExporter.Gui/Views/Controls/RevealablePasswordBox.xaml.cs

@@ -1,40 +0,0 @@
-using System.Windows;
-
-namespace DiscordChatExporter.Gui.Views.Controls;
-
-public partial class RevealablePasswordBox
-{
-    public static readonly DependencyProperty PasswordProperty = DependencyProperty.Register(
-        nameof(Password),
-        typeof(string),
-        typeof(RevealablePasswordBox),
-        new FrameworkPropertyMetadata(
-            string.Empty,
-            FrameworkPropertyMetadataOptions.BindsTwoWayByDefault
-        )
-    );
-
-    public static readonly DependencyProperty IsRevealedProperty = DependencyProperty.Register(
-        nameof(IsRevealed),
-        typeof(bool),
-        typeof(RevealablePasswordBox),
-        new FrameworkPropertyMetadata(false, FrameworkPropertyMetadataOptions.None)
-    );
-
-    public string Password
-    {
-        get => (string)GetValue(PasswordProperty);
-        set => SetValue(PasswordProperty, value);
-    }
-
-    public bool IsRevealed
-    {
-        get => (bool)GetValue(IsRevealedProperty);
-        set => SetValue(IsRevealedProperty, value);
-    }
-
-    public RevealablePasswordBox()
-    {
-        InitializeComponent();
-    }
-}

DiscordChatExporter.Gui/Views/Dialogs/ExportSetupView.axaml

@@ -0,0 +1,343 @@
+<UserControl
+    x:Class="DiscordChatExporter.Gui.Views.Dialogs.ExportSetupView"
+    xmlns="https://github.com/avaloniaui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:asyncImageLoader="clr-namespace:AsyncImageLoader;assembly=AsyncImageLoader.Avalonia"
+    xmlns:converters="clr-namespace:DiscordChatExporter.Gui.Converters"
+    xmlns:dialogs="clr-namespace:DiscordChatExporter.Gui.ViewModels.Dialogs"
+    xmlns:materialAssists="clr-namespace:Material.Styles.Assists;assembly=Material.Styles"
+    xmlns:materialIcons="clr-namespace:Material.Icons.Avalonia;assembly=Material.Icons.Avalonia"
+    xmlns:utils="clr-namespace:DiscordChatExporter.Gui.Utils"
+    x:Name="UserControl"
+    Width="380"
+    Loaded="UserControl_OnLoaded">
+    <Design.DataContext>
+        <dialogs:ExportSetupViewModel />
+    </Design.DataContext>
+
+    <Grid RowDefinitions="Auto,*,Auto">
+        <!--  Guild/channel info  -->
+        <Grid
+            Grid.Row="0"
+            Margin="16"
+            ColumnDefinitions="Auto,*">
+            <!--  Guild icon  -->
+            <Ellipse
+                Grid.Column="0"
+                Width="32"
+                Height="32">
+                <Ellipse.Fill>
+                    <ImageBrush asyncImageLoader:ImageBrushLoader.Source="{Binding Guild.IconUrl}" />
+                </Ellipse.Fill>
+            </Ellipse>
+
+            <!--  Channel count (for multiple channels)  -->
+            <TextBlock
+                Grid.Column="1"
+                Margin="8,0,0,0"
+                VerticalAlignment="Center"
+                FontSize="19"
+                FontWeight="Light"
+                IsVisible="{Binding !IsSingleChannel}"
+                TextTrimming="CharacterEllipsis">
+                <Run Text="{Binding Channels.Count, Mode=OneWay}" />
+                <Run Text="channels selected" />
+            </TextBlock>
+
+            <!--  Category and channel name (for single channel)  -->
+            <TextBlock
+                Grid.Column="1"
+                Margin="8,0,0,0"
+                VerticalAlignment="Center"
+                FontSize="19"
+                FontWeight="Light"
+                IsVisible="{Binding IsSingleChannel}"
+                TextTrimming="CharacterEllipsis"
+                ToolTip.Tip="{Binding Channels[0], Converter={x:Static converters:ChannelToHierarchicalNameStringConverter.Instance}}">
+                <TextBlock IsVisible="{Binding !!Channels[0].Parent}">
+                    <Run Text="{Binding Channels[0].Parent.Name, Mode=OneWay}" />
+                    <Run Text="/" />
+                </TextBlock>
+                <Run FontWeight="SemiBold" Text="{Binding Channels[0].Name, Mode=OneWay}" />
+            </TextBlock>
+        </Grid>
+
+        <Border
+            Grid.Row="1"
+            Padding="0,8"
+            BorderBrush="{DynamicResource MaterialDividerBrush}"
+            BorderThickness="0,1">
+            <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
+                <StackPanel Orientation="Vertical">
+                    <!--  Output path  -->
+                    <TextBox
+                        Margin="16,8"
+                        materialAssists:TextFieldAssist.Label="Output path"
+                        Text="{Binding OutputPath}"
+                        Theme="{DynamicResource FilledTextBox}">
+                        <ToolTip.Tip>
+                            <TextBlock>
+                                <Run Text="Output file or directory path." />
+                                <LineBreak />
+                                <Run Text="If a directory is specified, file names will be generated automatically based on the channel names and export parameters." />
+                                <LineBreak />
+                                <Run Text="Directory paths must end with a slash to avoid ambiguity." />
+                                <LineBreak />
+                                <LineBreak />
+                                <Run Text="Available template tokens:" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%g" />
+                                <Run Text="— server ID" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%G" />
+                                <Run Text="— server name" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%t" />
+                                <Run Text="— category ID" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%T" />
+                                <Run Text="— category name" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%c" />
+                                <Run Text="— channel ID" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%C" />
+                                <Run Text="— channel name" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%p" />
+                                <Run Text="— channel position" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%P" />
+                                <Run Text="— category position" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%a" />
+                                <Run Text="— after date" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%b" />
+                                <Run Text="— before date" />
+                                <LineBreak />
+                                <Run Text=" " />
+                                <Run FontWeight="SemiBold" Text="%d" />
+                                <Run Text="— current date" />
+                            </TextBlock>
+                        </ToolTip.Tip>
+                        <TextBox.InnerRightContent>
+                            <Button
+                                Margin="8,8,8,6"
+                                Padding="8"
+                                VerticalAlignment="Center"
+                                Command="{Binding ShowOutputPathPromptCommand}"
+                                Theme="{DynamicResource MaterialFlatButton}">
+                                <materialIcons:MaterialIcon
+                                    Width="20"
+                                    Height="20"
+                                    Kind="FolderOpen" />
+                            </Button>
+                        </TextBox.InnerRightContent>
+                    </TextBox>
+
+                    <!--  Format  -->
+                    <ComboBox
+                        Margin="16,8"
+                        materialAssists:ComboBoxAssist.Label="Format"
+                        ItemsSource="{Binding AvailableFormats}"
+                        SelectedItem="{Binding SelectedFormat}"
+                        Theme="{DynamicResource MaterialFilledComboBox}"
+                        ToolTip.Tip="Export format">
+                        <ComboBox.ItemTemplate>
+                            <DataTemplate>
+                                <TextBlock Text="{Binding Converter={x:Static converters:ExportFormatToStringConverter.Instance}}" />
+                            </DataTemplate>
+                        </ComboBox.ItemTemplate>
+                    </ComboBox>
+
+                    <!--  Advanced section  -->
+                    <StackPanel IsVisible="{Binding IsAdvancedSectionDisplayed}" Orientation="Vertical">
+                        <!--  Date limits  -->
+                        <Grid ColumnDefinitions="*,*" RowDefinitions="*,*">
+                            <DatePicker
+                                Grid.Row="0"
+                                Grid.Column="0"
+                                Margin="16,8,8,8"
+                                materialAssists:TextFieldAssist.Label="After (date)"
+                                SelectedDate="{Binding AfterDate}"
+                                ToolTip.Tip="Only include messages sent after this date">
+                                <DatePicker.Styles>
+                                    <Style Selector="DatePicker">
+                                        <Style Selector="^ /template/ TextBox#DisplayTextBox">
+                                            <Setter Property="Theme" Value="{DynamicResource FilledTextBox}" />
+                                        </Style>
+                                    </Style>
+                                </DatePicker.Styles>
+                            </DatePicker>
+                            <DatePicker
+                                Grid.Row="0"
+                                Grid.Column="1"
+                                Margin="8,8,16,8"
+                                materialAssists:TextFieldAssist.Label="Before (date)"
+                                SelectedDate="{Binding BeforeDate}"
+                                ToolTip.Tip="Only include messages sent before this date">
+                                <DatePicker.Styles>
+                                    <Style Selector="DatePicker">
+                                        <Style Selector="^ /template/ TextBox#DisplayTextBox">
+                                            <Setter Property="Theme" Value="{DynamicResource FilledTextBox}" />
+                                        </Style>
+                                    </Style>
+                                </DatePicker.Styles>
+                            </DatePicker>
+
+                            <!--  Time limits  -->
+                            <TimePicker
+                                Grid.Row="1"
+                                Grid.Column="0"
+                                Margin="16,8,8,8"
+                                materialAssists:TextFieldAssist.Label="After (time)"
+                                ClockIdentifier="{x:Static utils:Internationalization.AvaloniaClockIdentifier}"
+                                IsEnabled="{Binding IsAfterDateSet}"
+                                SelectedTime="{Binding AfterTime}"
+                                ToolTip.Tip="Only include messages sent after this time">
+                                <TimePicker.Styles>
+                                    <Style Selector="TimePicker">
+                                        <Style Selector="^ /template/ TextBox#PART_DisplayTextBox">
+                                            <Setter Property="Theme" Value="{DynamicResource FilledTextBox}" />
+                                        </Style>
+                                    </Style>
+                                </TimePicker.Styles>
+                            </TimePicker>
+                            <TimePicker
+                                Grid.Row="1"
+                                Grid.Column="1"
+                                Margin="8,8,16,8"
+                                materialAssists:TextFieldAssist.Label="Before (time)"
+                                ClockIdentifier="{x:Static utils:Internationalization.AvaloniaClockIdentifier}"
+                                IsEnabled="{Binding IsBeforeDateSet}"
+                                SelectedTime="{Binding BeforeTime}"
+                                ToolTip.Tip="Only include messages sent before this time">
+                                <TimePicker.Styles>
+                                    <Style Selector="TimePicker">
+                                        <Style Selector="^ /template/ TextBox#PART_DisplayTextBox">
+                                            <Setter Property="Theme" Value="{DynamicResource FilledTextBox}" />
+                                        </Style>
+                                    </Style>
+                                </TimePicker.Styles>
+                            </TimePicker>
+                        </Grid>
+
+                        <!--  Partitioning  -->
+                        <TextBox
+                            Margin="16,8"
+                            materialAssists:TextFieldAssist.Label="Partition limit"
+                            Text="{Binding PartitionLimitValue}"
+                            Theme="{DynamicResource FilledTextBox}"
+                            ToolTip.Tip="Split the output into partitions, each limited to the specified number of messages (e.g. '100') or file size (e.g. '10mb')" />
+
+                        <!--  Filtering  -->
+                        <TextBox
+                            Margin="16,8"
+                            materialAssists:TextFieldAssist.Label="Message filter"
+                            Text="{Binding MessageFilterValue}"
+                            Theme="{DynamicResource FilledTextBox}"
+                            ToolTip.Tip="Only include messages that satisfy this filter (e.g. 'from:foo#1234' or 'has:image'). See the documentation for more info." />
+
+                        <!--  Markdown formatting  -->
+                        <DockPanel
+                            Margin="16,8"
+                            LastChildFill="False"
+                            ToolTip.Tip="Process markdown, mentions, and other special tokens">
+                            <TextBlock DockPanel.Dock="Left" Text="Format markdown" />
+                            <ToggleSwitch DockPanel.Dock="Right" IsChecked="{Binding ShouldFormatMarkdown}" />
+                        </DockPanel>
+
+                        <!--  Download assets  -->
+                        <DockPanel
+                            Margin="16,8"
+                            LastChildFill="False"
+                            ToolTip.Tip="Download assets referenced by the export (user avatars, attached files, embedded images, etc.)">
+                            <TextBlock DockPanel.Dock="Left" Text="Download assets" />
+                            <ToggleSwitch DockPanel.Dock="Right" IsChecked="{Binding ShouldDownloadAssets}" />
+                        </DockPanel>
+
+                        <!--  Reuse assets  -->
+                        <DockPanel
+                            Margin="16,8"
+                            IsEnabled="{Binding ShouldDownloadAssets}"
+                            LastChildFill="False"
+                            ToolTip.Tip="Reuse previously downloaded assets to avoid redundant requests">
+                            <TextBlock DockPanel.Dock="Left" Text="Reuse assets" />
+                            <ToggleSwitch DockPanel.Dock="Right" IsChecked="{Binding ShouldReuseAssets}" />
+                        </DockPanel>
+
+                        <!--  Assets path  -->
+                        <TextBox
+                            Margin="16,8"
+                            materialAssists:TextFieldAssist.Label="Assets directory path"
+                            IsEnabled="{Binding ShouldDownloadAssets}"
+                            Text="{Binding AssetsDirPath}"
+                            Theme="{DynamicResource FilledTextBox}"
+                            ToolTip.Tip="Download assets to this directory. If not specified, the asset directory path will be derived from the output path.">
+                            <TextBox.InnerRightContent>
+                                <Button
+                                    Margin="8,8,8,6"
+                                    Padding="8"
+                                    VerticalAlignment="Center"
+                                    Command="{Binding ShowAssetsDirPathPromptCommand}"
+                                    Theme="{DynamicResource MaterialFlatButton}">
+                                    <materialIcons:MaterialIcon
+                                        Width="20"
+                                        Height="20"
+                                        Kind="FolderOpen" />
+                                </Button>
+                            </TextBox.InnerRightContent>
+                        </TextBox>
+                    </StackPanel>
+                </StackPanel>
+            </ScrollViewer>
+        </Border>
+
+        <!--  Buttons  -->
+        <Grid
+            Grid.Row="2"
+            Margin="16"
+            ColumnDefinitions="Auto,*,Auto,Auto">
+            <ToggleButton
+                Grid.Column="0"
+                IsChecked="{Binding IsAdvancedSectionDisplayed}"
+                Theme="{DynamicResource MaterialOutlineButton}"
+                ToolTip.Tip="Toggle advanced options">
+                <Button.Styles>
+                    <Style Selector="ToggleButton">
+                        <Setter Property="Content" Value="MORE" />
+
+                        <Style Selector="^:checked">
+                            <Setter Property="Content" Value="LESS" />
+                        </Style>
+                    </Style>
+                </Button.Styles>
+            </ToggleButton>
+
+            <Button
+                Grid.Column="2"
+                Command="{Binding ConfirmCommand}"
+                Content="EXPORT"
+                IsDefault="True"
+                Theme="{DynamicResource MaterialOutlineButton}" />
+            <Button
+                Grid.Column="3"
+                Margin="16,0,0,0"
+                Command="{Binding CloseCommand}"
+                Content="CANCEL"
+                IsCancel="True"
+                Theme="{DynamicResource MaterialOutlineButton}" />
+        </Grid>
+    </Grid>
+</UserControl>

DiscordChatExporter.Gui/Views/Dialogs/ExportSetupView.axaml.cs

@@ -0,0 +1,13 @@
+using Avalonia.Interactivity;
+using DiscordChatExporter.Gui.Framework;
+using DiscordChatExporter.Gui.ViewModels.Dialogs;
+
+namespace DiscordChatExporter.Gui.Views.Dialogs;
+
+public partial class ExportSetupView : UserControl<ExportSetupViewModel>
+{
+    public ExportSetupView() => InitializeComponent();
+
+    private void UserControl_OnLoaded(object? sender, RoutedEventArgs args) =>
+        DataContext.InitializeCommand.Execute(null);
+}

DiscordChatExporter.Gui/Views/Dialogs/ExportSetupView.xaml

@@ -1,365 +0,0 @@
-<UserControl
-    x:Class="DiscordChatExporter.Gui.Views.Dialogs.ExportSetupView"
-    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:converters="clr-namespace:DiscordChatExporter.Gui.Converters"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
-    xmlns:dialogs="clr-namespace:DiscordChatExporter.Gui.ViewModels.Dialogs"
-    xmlns:globalization="clr-namespace:System.Globalization;assembly=System.Runtime"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
-    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-    xmlns:s="https://github.com/canton7/Stylet"
-    xmlns:utils="clr-namespace:DiscordChatExporter.Gui.Utils"
-    Width="380"
-    d:DataContext="{d:DesignInstance Type=dialogs:ExportSetupViewModel}"
-    Style="{DynamicResource MaterialDesignRoot}"
-    mc:Ignorable="d">
-    <Grid>
-        <Grid.RowDefinitions>
-            <RowDefinition Height="Auto" />
-            <RowDefinition Height="*" />
-            <RowDefinition Height="Auto" />
-        </Grid.RowDefinitions>
-
-        <!--  Guild/channel info  -->
-        <Grid Grid.Row="0" Margin="16">
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="Auto" />
-                <ColumnDefinition Width="*" />
-            </Grid.ColumnDefinitions>
-
-            <!--  Guild icon  -->
-            <Ellipse
-                Grid.Column="0"
-                Width="32"
-                Height="32">
-                <Ellipse.Fill>
-                    <ImageBrush ImageSource="{Binding Guild.IconUrl}" />
-                </Ellipse.Fill>
-            </Ellipse>
-
-            <!--  Channel count (for multiple channels)  -->
-            <TextBlock
-                Grid.Column="1"
-                Margin="8,0,0,0"
-                VerticalAlignment="Center"
-                FontSize="19"
-                FontWeight="Light"
-                TextTrimming="CharacterEllipsis"
-                Visibility="{Binding IsSingleChannel, Converter={x:Static s:BoolToVisibilityConverter.InverseInstance}}">
-                <Run Text="{Binding Channels.Count, Mode=OneWay}" />
-                <Run Text="channels selected" />
-            </TextBlock>
-
-            <!--  Category and channel name (for single channel)  -->
-            <TextBlock
-                Grid.Column="1"
-                Margin="8,0,0,0"
-                VerticalAlignment="Center"
-                FontSize="19"
-                FontWeight="Light"
-                TextTrimming="CharacterEllipsis"
-                Visibility="{Binding IsSingleChannel, Converter={x:Static s:BoolToVisibilityConverter.Instance}}">
-                <TextBlock Visibility="{Binding Channels[0].Parent, Converter={x:Static s:BoolToVisibilityConverter.Instance}}">
-                    <Run Text="{Binding Channels[0].Parent.Name, Mode=OneWay}" ToolTip="{Binding Channels[0].Parent.Name, Mode=OneWay}" />
-                    <Run Text="/" />
-                </TextBlock>
-                <Run
-                    FontWeight="SemiBold"
-                    Text="{Binding Channels[0].Name, Mode=OneWay}"
-                    ToolTip="{Binding Channels[0].Name, Mode=OneWay}" />
-            </TextBlock>
-        </Grid>
-
-        <Border
-            Grid.Row="1"
-            Padding="0,8"
-            BorderBrush="{DynamicResource MaterialDesignDivider}"
-            BorderThickness="0,1">
-            <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
-                <StackPanel>
-                    <!--  Output path  -->
-                    <Grid Margin="16,8">
-                        <TextBox
-                            Padding="16,16,42,16"
-                            materialDesign:HintAssist.Hint="Output path"
-                            materialDesign:HintAssist.IsFloating="True"
-                            Style="{DynamicResource MaterialDesignOutlinedTextBox}"
-                            Text="{Binding OutputPath}">
-                            <TextBox.ToolTip>
-                                <TextBlock>
-                                    <Run Text="Output file or directory path." />
-                                    <Run Text="If a directory is specified, file names will be generated automatically based on the channel names and export parameters." />
-                                    <Run Text="Directory paths must end with a slash to avoid ambiguity." />
-                                    <Run Text="Supports template tokens, see the documentation for more info." />
-                                    <LineBreak />
-                                    <LineBreak />
-                                    <Run Text="Available template tokens:" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%g" />
-                                    <Run Text="— server ID" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%G" />
-                                    <Run Text="— server name" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%t" />
-                                    <Run Text="— category ID" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%T" />
-                                    <Run Text="— category name" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%c" />
-                                    <Run Text="— channel ID" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%C" />
-                                    <Run Text="— channel name" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%p" />
-                                    <Run Text="— channel position" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%P" />
-                                    <Run Text="— category position" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%a" />
-                                    <Run Text="— after date" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%b" />
-                                    <Run Text="— before date" />
-                                    <LineBreak />
-                                    <Run FontWeight="SemiBold" Text="%d" />
-                                    <Run Text="— current date" />
-                                </TextBlock>
-                            </TextBox.ToolTip>
-                        </TextBox>
-                        <Button
-                            Width="24"
-                            Height="24"
-                            Margin="0,0,12,0"
-                            Padding="0"
-                            HorizontalAlignment="Right"
-                            Command="{s:Action ShowOutputPathPrompt}"
-                            Style="{DynamicResource MaterialDesignToolForegroundButton}">
-                            <materialDesign:PackIcon Kind="FolderOpen" />
-                        </Button>
-                    </Grid>
-
-                    <!--  Format  -->
-                    <ComboBox
-                        Margin="16,8"
-                        materialDesign:HintAssist.Hint="Format"
-                        materialDesign:HintAssist.IsFloating="True"
-                        IsReadOnly="True"
-                        ItemsSource="{Binding AvailableFormats}"
-                        SelectedItem="{Binding SelectedFormat}"
-                        Style="{DynamicResource MaterialDesignOutlinedComboBox}"
-                        ToolTip="Export format">
-                        <ComboBox.ItemTemplate>
-                            <DataTemplate>
-                                <TextBlock Text="{Binding Converter={x:Static converters:ExportFormatToStringConverter.Instance}, ConverterCulture={x:Static globalization:CultureInfo.CurrentCulture}}" />
-                            </DataTemplate>
-                        </ComboBox.ItemTemplate>
-                    </ComboBox>
-
-                    <!--  Advanced section  -->
-                    <StackPanel Visibility="{Binding IsAdvancedSectionDisplayed, Converter={x:Static s:BoolToVisibilityConverter.Instance}}">
-
-                        <!--  Date limits  -->
-                        <Grid>
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="*" />
-                                <ColumnDefinition Width="*" />
-                            </Grid.ColumnDefinitions>
-                            <Grid.RowDefinitions>
-                                <RowDefinition Height="*" />
-                                <RowDefinition Height="*" />
-                            </Grid.RowDefinitions>
-                            <DatePicker
-                                Grid.Row="0"
-                                Grid.Column="0"
-                                Margin="16,8,16,4"
-                                materialDesign:HintAssist.Hint="After (date)"
-                                materialDesign:HintAssist.IsFloating="True"
-                                DisplayDateEnd="{Binding BeforeDate, Converter={x:Static converters:DateTimeOffsetToDateTimeConverter.Instance}, ConverterCulture={x:Static globalization:CultureInfo.CurrentCulture}}"
-                                SelectedDate="{Binding AfterDate, Converter={x:Static converters:DateTimeOffsetToDateTimeConverter.Instance}, ConverterCulture={x:Static globalization:CultureInfo.CurrentCulture}}"
-                                Style="{DynamicResource MaterialDesignOutlinedDatePicker}"
-                                ToolTip="Only include messages sent after this date" />
-                            <DatePicker
-                                Grid.Row="0"
-                                Grid.Column="1"
-                                Margin="16,8,16,4"
-                                materialDesign:HintAssist.Hint="Before (date)"
-                                materialDesign:HintAssist.IsFloating="True"
-                                DisplayDateStart="{Binding AfterDate, Converter={x:Static converters:DateTimeOffsetToDateTimeConverter.Instance}, ConverterCulture={x:Static globalization:CultureInfo.CurrentCulture}}"
-                                SelectedDate="{Binding BeforeDate, Converter={x:Static converters:DateTimeOffsetToDateTimeConverter.Instance}, ConverterCulture={x:Static globalization:CultureInfo.CurrentCulture}}"
-                                Style="{DynamicResource MaterialDesignOutlinedDatePicker}"
-                                ToolTip="Only include messages sent before this date" />
-                            <materialDesign:TimePicker
-                                Grid.Row="1"
-                                Grid.Column="0"
-                                Margin="16,4,16,8"
-                                materialDesign:HintAssist.Hint="After (time)"
-                                materialDesign:HintAssist.IsFloating="True"
-                                Is24Hours="{x:Static utils:Internationalization.Is24Hours}"
-                                IsEnabled="{Binding IsAfterDateSet}"
-                                SelectedTime="{Binding AfterTime, Converter={x:Static converters:TimeSpanToDateTimeConverter.Instance}, ConverterCulture={x:Static globalization:CultureInfo.CurrentCulture}}"
-                                Style="{DynamicResource MaterialDesignOutlinedTimePicker}"
-                                ToolTip="Only include messages sent after this time" />
-                            <materialDesign:TimePicker
-                                Grid.Row="1"
-                                Grid.Column="1"
-                                Margin="16,4,16,8"
-                                materialDesign:HintAssist.Hint="Before (time)"
-                                materialDesign:HintAssist.IsFloating="True"
-                                Is24Hours="{x:Static utils:Internationalization.Is24Hours}"
-                                IsEnabled="{Binding IsBeforeDateSet}"
-                                SelectedTime="{Binding BeforeTime, Converter={x:Static converters:TimeSpanToDateTimeConverter.Instance}, ConverterCulture={x:Static globalization:CultureInfo.CurrentCulture}}"
-                                Style="{DynamicResource MaterialDesignOutlinedTimePicker}"
-                                ToolTip="Only include messages sent before this time" />
-                        </Grid>
-
-                        <!--  Partitioning  -->
-                        <TextBox
-                            Margin="16,8"
-                            materialDesign:HintAssist.Hint="Partition limit"
-                            materialDesign:HintAssist.IsFloating="True"
-                            Style="{DynamicResource MaterialDesignOutlinedTextBox}"
-                            Text="{Binding PartitionLimitValue}"
-                            ToolTip="Split the output into partitions, each limited to the specified number of messages (e.g. '100') or file size (e.g. '10mb')" />
-
-                        <!--  Filtering  -->
-                        <TextBox
-                            Margin="16,8"
-                            materialDesign:HintAssist.Hint="Message filter"
-                            materialDesign:HintAssist.IsFloating="True"
-                            Style="{DynamicResource MaterialDesignOutlinedTextBox}"
-                            Text="{Binding MessageFilterValue}"
-                            ToolTip="Only include messages that satisfy this filter (e.g. 'from:foo#1234' or 'has:image'). See the documentation for more info." />
-
-                        <!--  Markdown formatting  -->
-                        <Grid Margin="16,8" ToolTip="Process markdown, mentions, and other special tokens">
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="*" />
-                                <ColumnDefinition Width="Auto" />
-                            </Grid.ColumnDefinitions>
-
-                            <TextBlock
-                                Grid.Column="0"
-                                VerticalAlignment="Center"
-                                Text="Format markdown" />
-                            <ToggleButton
-                                Grid.Column="1"
-                                HorizontalAlignment="Right"
-                                VerticalAlignment="Center"
-                                IsChecked="{Binding ShouldFormatMarkdown}" />
-                        </Grid>
-
-                        <!--  Download assets  -->
-                        <Grid Margin="16,8" ToolTip="Download assets referenced by the export (user avatars, attached files, embedded images, etc.)">
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="*" />
-                                <ColumnDefinition Width="Auto" />
-                            </Grid.ColumnDefinitions>
-
-                            <TextBlock
-                                Grid.Column="0"
-                                VerticalAlignment="Center"
-                                Text="Download assets" />
-                            <ToggleButton
-                                Grid.Column="1"
-                                HorizontalAlignment="Right"
-                                VerticalAlignment="Center"
-                                IsChecked="{Binding ShouldDownloadAssets}" />
-                        </Grid>
-
-                        <!--  Reuse assets  -->
-                        <Grid
-                            Margin="16,8"
-                            IsEnabled="{Binding ShouldDownloadAssets}"
-                            ToolTip="Reuse previously downloaded assets to avoid redundant requests">
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="*" />
-                                <ColumnDefinition Width="Auto" />
-                            </Grid.ColumnDefinitions>
-
-                            <TextBlock
-                                Grid.Column="0"
-                                VerticalAlignment="Center"
-                                Text="Reuse assets" />
-                            <ToggleButton
-                                Grid.Column="1"
-                                HorizontalAlignment="Right"
-                                VerticalAlignment="Center"
-                                IsChecked="{Binding ShouldReuseAssets}" />
-                        </Grid>
-
-                        <!--  Assets path  -->
-                        <Grid
-                            Margin="16,8"
-                            IsEnabled="{Binding ShouldDownloadAssets}"
-                            ToolTip="Download assets to this directory. If not specified, the asset directory path will be derived from the output path.">
-                            <TextBox
-                                Padding="16,16,42,16"
-                                materialDesign:HintAssist.Hint="Assets directory path"
-                                materialDesign:HintAssist.IsFloating="True"
-                                Style="{DynamicResource MaterialDesignOutlinedTextBox}"
-                                Text="{Binding AssetsDirPath}" />
-                            <Button
-                                Width="24"
-                                Height="24"
-                                Margin="0,0,12,0"
-                                Padding="0"
-                                HorizontalAlignment="Right"
-                                Command="{s:Action ShowAssetsDirPathPrompt}"
-                                Style="{DynamicResource MaterialDesignToolForegroundButton}">
-                                <materialDesign:PackIcon Kind="FolderOpen" />
-                            </Button>
-                        </Grid>
-                    </StackPanel>
-                </StackPanel>
-            </ScrollViewer>
-        </Border>
-
-        <!--  Buttons  -->
-        <Grid Grid.Row="2" Margin="16">
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="Auto" />
-                <ColumnDefinition Width="*" />
-                <ColumnDefinition Width="Auto" />
-                <ColumnDefinition Width="Auto" />
-            </Grid.ColumnDefinitions>
-
-            <Button
-                Grid.Column="0"
-                Command="{s:Action ToggleAdvancedSection}"
-                IsDefault="True"
-                ToolTip="Toggle advanced options">
-                <Button.Style>
-                    <Style BasedOn="{StaticResource MaterialDesignOutlinedButton}" TargetType="{x:Type Button}">
-                        <Style.Triggers>
-                            <DataTrigger Binding="{Binding IsAdvancedSectionDisplayed}" Value="False">
-                                <Setter Property="Content" Value="MORE" />
-                            </DataTrigger>
-                            <DataTrigger Binding="{Binding IsAdvancedSectionDisplayed}" Value="True">
-                                <Setter Property="Content" Value="LESS" />
-                            </DataTrigger>
-                        </Style.Triggers>
-                    </Style>
-                </Button.Style>
-            </Button>
-
-            <Button
-                Grid.Column="2"
-                Command="{s:Action Confirm}"
-                Content="EXPORT"
-                IsDefault="True"
-                Style="{DynamicResource MaterialDesignOutlinedButton}" />
-            <Button
-                Grid.Column="3"
-                Margin="8,0,0,0"
-                Command="{s:Action Close}"
-                Content="CANCEL"
-                IsCancel="True"
-                Style="{DynamicResource MaterialDesignOutlinedButton}" />
-        </Grid>
-    </Grid>
-</UserControl>