Update version

Closes #799

.github/FUNDING.yml

@@ -1,3 +0,0 @@
-github: Tyrrrz
-patreon: Tyrrrz
-custom: ['buymeacoffee.com/Tyrrrz', 'tyrrrz.me/donate']

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,17 +0,0 @@
-<!--
-
-**Important:**
-
-Please make sure that there is an existing issue that describes the problem solved by your pull request. If there isn't one, consider creating it first.
-An open issue offers a good place to iron out requirements, discuss possible solutions, and ask questions.
-
-Remember to also:
-
-- Keep your pull request focused and as small as possible. If you want to contribute multiple unrelated changes, please create separate pull requests for them.
-- Follow the coding style and conventions already established by the project. When in doubt about which style to use, ask in the comments to your pull request.
-- If you want to start a discussion regarding a specific change you've made, add a review comment to your own code. This can be used to highlight something important or to seek further input from others.
-
--->
-
-<!-- Please specify the issue addressed by this pull request -->
-Closes #ISSUE_NUMBER

.github/workflows/CD-Docker.yml

@@ -1,30 +0,0 @@
-name: Docker CD
-
-on:
-  push:
-    tags:
-      - "*"
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2.3.3
-
-      - name: Get release version
-        id: get_version
-        uses: dawidd6/action-get-tag@v1
-
-      - name: Login
-        run: docker login -u tyrrrz -p ${{ secrets.DOCKER_TOKEN }}
-
-      - name: Build
-        run: docker build -t tyrrrz/discordchatexporter:${{ steps.get_version.outputs.tag }} -t tyrrrz/discordchatexporter:stable .
-
-      - name: Deploy (version)
-        run: docker push tyrrrz/discordchatexporter:${{ steps.get_version.outputs.tag }}
-
-      - name: Deploy (stable)
-        run: docker push tyrrrz/discordchatexporter:stable

.github/workflows/CD.yml

@@ -1,84 +0,0 @@
-name: CD
-
-on:
-  push:
-    tags:
-      - "*"
-
-jobs:
-  build:
-    runs-on: windows-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2.3.3
-
-      - name: Get release version
-        id: get_version
-        uses: dawidd6/action-get-tag@v1
-
-      - name: Install .NET
-        uses: actions/setup-dotnet@v1.7.2
-        with:
-          dotnet-version: 6.0.x
-
-      - name: Build & publish (CLI)
-        run: dotnet publish DiscordChatExporter.Cli/ -o DiscordChatExporter.Cli/bin/Publish/ --configuration Release
-
-      - name: Build & publish (GUI)
-        run: dotnet publish DiscordChatExporter.Gui/ -o DiscordChatExporter.Gui/bin/Publish/ --configuration Release
-
-      - name: Pack (CLI)
-        run: Compress-Archive -Path DiscordChatExporter.Cli/bin/Publish/* -DestinationPath DiscordChatExporter.Cli/bin/Publish/Archive.zip -Force
-        shell: pwsh
-
-      - name: Pack (GUI)
-        run: Compress-Archive -Path DiscordChatExporter.Gui/bin/Publish/* -DestinationPath DiscordChatExporter.Gui/bin/Publish/Archive.zip -Force
-        shell: pwsh
-
-      - name: Create release
-        id: create_release
-        uses: actions/create-release@v1.0.1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ github.ref }}
-          release_name: ${{ github.ref }}
-          body: |
-            [Changelog](https://github.com/Tyrrrz/DiscordChatExporter/blob/master/Changelog.md)
-          draft: false
-          prerelease: false
-
-      - name: Upload release asset (CLI)
-        uses: actions/upload-release-asset@v1.0.2
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: DiscordChatExporter.Cli/bin/Publish/Archive.zip
-          asset_name: DiscordChatExporter.CLI.zip
-          asset_content_type: application/zip
-
-      - name: Upload release asset (GUI)
-        uses: actions/upload-release-asset@v1.0.2
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: DiscordChatExporter.Gui/bin/Publish/Archive.zip
-          asset_name: DiscordChatExporter.zip
-          asset_content_type: application/zip
-
-      - name: Notify Discord
-        uses: satak/webrequest-action@v1.2.4
-        with:
-          url: ${{ secrets.DISCORD_WEBHOOK }}
-          method: POST
-          headers: |
-            {
-              "ContentType": "application/json; charset=UTF-8"
-            }
-          payload: |
-            {
-              "content": "**DiscordChatExporter** new version released!\nVersion: `${{ steps.get_version.outputs.tag }}`\nChangelog: <https://github.com/Tyrrrz/DiscordChatExporter/blob/${{ steps.get_version.outputs.tag }}/Changelog.md>"
-            }

.github/workflows/CI-Docker.yml

@@ -1,23 +0,0 @@
-name: Docker CI
-
-on:
-  push:
-    branches:
-      - master
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2.3.3
-
-      - name: Login
-        run: docker login -u tyrrrz -p ${{ secrets.DOCKER_TOKEN }}
-
-      - name: Build
-        run: docker build -t tyrrrz/discordchatexporter:latest .
-
-      - name: Deploy (latest)
-        run: docker push tyrrrz/discordchatexporter:latest

.github/workflows/CI.yml

@@ -1,47 +0,0 @@
-name: CI
-
-on: [push, pull_request]
-
-jobs:
-  build:
-    runs-on: windows-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2.3.3
-
-      - name: Install .NET
-        uses: actions/setup-dotnet@v1.7.2
-        with:
-          dotnet-version: 6.0.x
-
-      - name: Build & test
-        # Tests need access to secrets, so we can't run them against PRs because of limited trust
-        if: ${{ github.event_name != 'pull_request' }}
-        run: dotnet test --configuration Release --logger GitHubActions
-        env:
-          DISCORD_TOKEN: ${{ secrets.DISCORD_TOKEN }}
-          DISCORD_TOKEN_BOT: true
-
-      - name: Upload coverage
-        uses: codecov/codecov-action@v1.0.5
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-
-      - name: Build & publish (CLI)
-        run: dotnet publish DiscordChatExporter.Cli/ -o DiscordChatExporter.Cli/bin/Publish/ --configuration Release
-
-      - name: Build & publish (GUI)
-        run: dotnet publish DiscordChatExporter.Gui/ -o DiscordChatExporter.Gui/bin/Publish/ --configuration Release
-
-      - name: Upload build artifacts (CLI)
-        uses: actions/upload-artifact@v1
-        with:
-          name: DiscordChatExporter.CLI
-          path: DiscordChatExporter.Cli/bin/Publish/
-
-      - name: Upload build artifact (GUI)
-        uses: actions/upload-artifact@v1
-        with:
-          name: DiscordChatExporter
-          path: DiscordChatExporter.Gui/bin/Publish/

.github/workflows/docker.yml

@@ -0,0 +1,55 @@
+name: docker
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Build container
+        run: docker build -f DiscordChatExporter.Cli.dockerfile .
+
+  deploy-latest:
+    if: ${{ github.event_name == 'push' && github.ref_type == 'branch' && github.ref_name == 'master' }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Login to DockerHub
+        run: docker login -u tyrrrz -p ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Build container
+        run: docker build -f DiscordChatExporter.Cli.dockerfile -t tyrrrz/discordchatexporter:latest .
+
+      - name: Push container
+        run: docker push tyrrrz/discordchatexporter:latest
+
+  deploy-stable:
+    if: ${{ github.event_name == 'push' && github.ref_type == 'tag' }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Get release version
+        id: get_version
+        uses: dawidd6/action-get-tag@v1
+
+      - name: Login to DockerHub
+        run: docker login -u tyrrrz -p ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Build container
+        run: docker build -f DiscordChatExporter.Cli.dockerfile -t tyrrrz/discordchatexporter:stable -t tyrrrz/discordchatexporter:${{ steps.get_version.outputs.tag }} .
+
+      - name: Push container (stable)
+        run: docker push tyrrrz/discordchatexporter:stable
+
+      - name: Push container (${{ steps.get_version.outputs.tag }})
+        run: docker push tyrrrz/discordchatexporter:${{ steps.get_version.outputs.tag }}

.github/workflows/main.yml

@@ -0,0 +1,154 @@
+name: main
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: windows-latest
+
+    env:
+      DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+      DOTNET_NOLOGO: true
+      DOTNET_CLI_TELEMETRY_OPTOUT: true
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install .NET
+        uses: actions/setup-dotnet@v2
+        with:
+          # Fixed version, workaround for https://github.com/dotnet/core/issues/7176
+          dotnet-version: 6.0.100
+
+      - name: Run tests
+        # Tests need access to secrets, so we can't run them against PRs because of limited trust
+        if: ${{ github.event_name != 'pull_request' }}
+        run: dotnet test --configuration Release --logger GitHubActions --collect:"XPlat Code Coverage" -- DataCollectionRunSettings.DataCollectors.DataCollector.Configuration.Format=opencover
+        env:
+          DISCORD_TOKEN: ${{ secrets.DISCORD_TOKEN }}
+          DISCORD_TOKEN_BOT: true
+
+      - name: Upload coverage
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+
+  package:
+    needs: test
+    runs-on: windows-latest
+
+    env:
+      DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+      DOTNET_NOLOGO: true
+      DOTNET_CLI_TELEMETRY_OPTOUT: true
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install .NET
+        uses: actions/setup-dotnet@v2
+        with:
+          # Fixed version, workaround for https://github.com/dotnet/core/issues/7176
+          dotnet-version: 6.0.100
+
+      - name: Publish (CLI)
+        run: dotnet publish DiscordChatExporter.Cli/ -o DiscordChatExporter.Cli/bin/Publish/ --configuration Release
+
+      - name: Publish (GUI)
+        run: dotnet publish DiscordChatExporter.Gui/ -o DiscordChatExporter.Gui/bin/Publish/ --configuration Release
+
+      - name: Upload artifacts (CLI)
+        uses: actions/upload-artifact@v3
+        with:
+          name: DiscordChatExporter.Cli
+          path: DiscordChatExporter.Cli/bin/Publish/
+
+      - name: Upload artifacts (GUI)
+        uses: actions/upload-artifact@v3
+        with:
+          name: DiscordChatExporter
+          path: DiscordChatExporter.Gui/bin/Publish/
+
+  deploy:
+    if: ${{ github.event_name == 'push' && github.ref_type == 'tag' }}
+    needs: package
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Download artifacts (CLI)
+        uses: actions/download-artifact@v3
+        with:
+          name: DiscordChatExporter.Cli
+          path: DiscordChatExporter.Cli
+
+      - name: Download artifacts (GUI)
+        uses: actions/download-artifact@v3
+        with:
+          name: DiscordChatExporter
+          path: DiscordChatExporter.Gui
+
+      - name: Create package (CLI)
+        run: Compress-Archive -Path DiscordChatExporter.Cli/* -DestinationPath DiscordChatExporter.Cli.zip -Force
+        shell: pwsh
+
+      - name: Create package (GUI)
+        run: Compress-Archive -Path DiscordChatExporter.Gui/* -DestinationPath DiscordChatExporter.Gui.zip -Force
+        shell: pwsh
+
+      - name: Create release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          body: |
+            [Changelog](https://github.com/Tyrrrz/DiscordChatExporter/blob/master/Changelog.md)
+          draft: false
+          prerelease: false
+
+      - name: Upload release asset (CLI)
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_name: DiscordChatExporter.Cli.zip
+          asset_path: DiscordChatExporter.Cli.zip
+          asset_content_type: application/zip
+
+      - name: Upload release asset (GUI)
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_name: DiscordChatExporter.zip
+          asset_path: DiscordChatExporter.Gui.zip
+          asset_content_type: application/zip
+
+  notify:
+    needs: deploy
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Get release version
+        id: get_version
+        uses: dawidd6/action-get-tag@v1
+
+      - name: Notify Discord
+        uses: satak/webrequest-action@v1.2.4
+        with:
+          url: ${{ secrets.DISCORD_WEBHOOK }}
+          method: POST
+          headers: |
+            {
+              "ContentType": "application/json; charset=UTF-8"
+            }
+          payload: |
+            {
+              "content": "**DiscordChatExporter** new version released!\nVersion: `${{ steps.get_version.outputs.tag }}`\nChangelog: <https://github.com/Tyrrrz/DiscordChatExporter/blob/${{ steps.get_version.outputs.tag }}/Changelog.md>"
+            }

Changelog.md

@@ -1,3 +1,83 @@
+### v2.35.1 (26-Aug-2022)
+
+- Added `~` character as an alias for `-` when negating a message filter. This should make it easier to use negated filters from CLI where the dash character already has other meanings.
+- Extended retry logic to encompass all server-side errors from Discord API, instead of only `500 Internal Server Error`.
+- [CLI] Attempt to export multiple channels will now fail if provided with an output path that is neither a directory, nor a file name template. Previously, this resulted in all channels being exported to the same file, overwriting each other.
+- Fixed an issue where a text message filter didn't work if it started with a character that's also the first character in one of the named filters (e.g. `from` or `mentions`).
+- Fixed an issue where a text message filter didn't work correctly if it was enclosed in parentheses.
+- Fixed an issue where categories were displayed alongside regular channels in the channel list, both in GUI and in CLI (when using the `guild` command).
+- [CLI] Fixed an issue where an output path starting with a tilde on Linux was not expanded properly into a full path. (Thanks [@TSRBerry](https://github.com/TSRBerry))
+
+### v2.35 (02-Jul-2022)
+
+- Added support for exporting text chat in voice channels. These channels are now also displayed when browsing in the GUI and in the CLI when executing the `channels` command.
+- [GUI] Direct message channels are now sorted by the timestamp of their last message, similarly to how they appear in the Discord client.
+- [GUI] Removed artificial grouping of direct message channels into "Private" and "Group".
+- [CLI] Added runtime bootstrapper capabilities to the CLI flavor of DiscordChatExporter on Windows. Now, if you attempt to run the application without the required prerequisites installed, you will be provided with an option to install them automatically.
+- [CLI] Fixed outdated information in the usage guide. (Thanks [@Clint Herron](https://github.com/HanClinto))
+- [CLI] Added whitespace padding to the output of `guilds`, `channels`, and `dm` to make the tables look more uniform.
+- [HTML] Added hyperlinks to message timestamps, which allows you to quickly copy a link to a specific message in the export. (Thanks [@Philipp C. Heckel](https://github.com/binwiederhier))
+- [HTML] Added minification. Chat exports in HTML format are now 30-35% smaller than before.
+- [HTML] Added support for rendering embeds of Twitter posts that contain multiple images. Previously, this resulted in multiple separate embeds instead of one.
+- [HTML] Added support for rendering embeds of YouTube Shorts videos.
+- [HTML] Text content is now hidden if the message only contains a link to an image and nothing else. The link itself is resolved as an image embed.
+- [HTML] Fixed an issue where some emoji that included a zero-width-joiner rune were not rendered correctly due to a wrong Twemoji URL being generated. (Thanks [@Ethan](https://github.com/ethanndickson))
+- [HTML] Fixed an issue where replies to a message that contained a quote (i.e. `>`) were not rendered correctly.
+- [HTML] Fixed an issue where code blocks with language highlighting did not have the correct background color.
+- Added file name template token that resolves to the current date (`%d`). (Thanks [@Lucas LaBuff](https://github.com/96-LB))
+- Updated the usage guide to replace the instructions for retrieving the user token with those that appear to work for more people.
+- Updated the usage guide to feature the TOS warning more prominently.
+- [Docker] Changed internal working directory from `/app/out` to `/out`. This was an unintended breaking change. Please update your volume binding configuration from `-v /path/on/machine:/app/out` to `-v /path/on/machine:/out`.
+
+### v2.34.1 (01-Jun-2022)
+
+- Improved retry policy to handle more transient errors. This should result in fewer errors exporting a channel due to timeout.
+- Added `has:pin` message filter. You can use it to limit exported messages to those that have been pinned. (Thanks [@Andrew Kolos](https://github.com/andrewkolos))
+- Fixed an issue which caused the export to fail when processing stickers that have no name.
+
+### v2.34 (10-Apr-2022)
+
+- [HTML] Reworked layout to be more consistent with Discord.
+- [HTML] Changed user profile picture dimensions from `128x128` to `512x512`. (Thanks [@Chris Helder](https://github.com/TheDude53))
+- [HTML] Improved image scaling for Chromium-based browsers. This should result in higher quality images across the entire export.
+- [HTML] Hovering over messages will now show short timestamps on the left, indicating the time that the individual messages of the group were sent.
+- [HTML] Using "download media" option will now also download scripts, styles, fonts, and other similar resources used by the export.
+- [HTML] Image attachments will now use the provided description as alt text.
+- [HTML] Fixed a few layout inconsistencies related to embeds.
+- [GUI] Added a few clickable links to the usage guide to make the process of locating tokens easier.
+
+### v2.33.2 (07-Mar-2022)
+
+- Actually fixed it this time.
+
+### v2.33.1 (07-Mar-2022)
+
+- Fixed an issue where the application silently failed to run if the system didn't have .NET Runtime 6.0.2 installed. If you continue seeing this issue, please uninstall all existing .NET runtimes from your computer and then try running the application again.
+
+### v2.33 (06-Mar-2022)
+
+- Added messages informing about war in Ukraine and available ways to help.
+- Added support for rendering stickers in HTML and JSON. Lottie-based stickers currently cannot be displayed in HTML exports (see [#803](https://github.com/Tyrrrz/DiscordChatExporter/issues/803)).
+- Added a new `reaction:` message filter which can be used to check if someone reacted to a message with a specific emoji. You can either pass the emoji name (e.g. `reaction:LUL`) or its ID (e.g. `reaction:41771983429993937`).
+- [GUI] Added auto-detection for dark mode. If your system is configured to prefer dark mode in applications, DiscordChatExporter will use it by default instead of light mode.
+- Fixed an issue which caused the export process to crash when downloading media files with extremely long file extensions. (Thanks [@Tomlacko](https://github.com/Tomlacko))
+- Fixed an issue which caused the export process to crash on invalid mentions.
+- [GUI] Fixed an issue where the time pickers used to specify export ranges always displayed time in 12-hour format, instead of respecting the system locale.
+
+### v2.32 (27-Jan-2022)
+
+- Token kind (user or bot) is now detected automatically. Removed the button to switch token kind in GUI. Option `-b|--bot` in CLI is now deprecated and does nothing.
+- Updated user token extraction guide to reflect the fact that devtools are no longer accessible in the desktop version of Discord client. The recommended workaround is to open Discord in browser. (Thanks [@Dhananjay-JSR](https://github.com/Dhananjay-JSR))
+- Fixed an issue which caused an error when parsing invalid date timestamps. Such timestamps are now rendered as "Invalid date", similarly to how the Discord client does it.
+- Fixed an issue which caused an error when parsing certain embed fields.
+- Fixed an issue which caused an error when parsing a mention to a user that has no username.
+- [GUI] Minor visual fixes.
+
+### v2.31.1 (15-Dec-2021)
+
+- Fixed an issue which caused an error when parsing certain custom emoji reactions.
+- [GUI] Improved user interface.
+
 ### v2.31 (06-Dec-2021)
 
 - Changed target runtime of the application (both GUI and CLI) from .NET 3.1 to .NET 6. Those using the GUI version will not need to take any action as the application should install the necessary prerequisites automatically. Those using the CLI version will need to download and install .NET 6 runtime manually [from here](https://dotnet.microsoft.com/download/dotnet/6.0) (look for ".NET Runtime 6.0.x" section on the right and choose the distribution appropriate for your system).

Directory.Build.props

@@ -2,9 +2,9 @@
 
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
-    <Version>2.31</Version>
+    <Version>2.35.1</Version>
     <Company>Tyrrrz</Company>
-    <Copyright>Copyright (c) Alexey Golub</Copyright>
+    <Copyright>Copyright (c) Oleksii Holub</Copyright>
     <LangVersion>preview</LangVersion>
     <Nullable>enable</Nullable>
     <WarningsAsErrors>nullable</WarningsAsErrors>

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

@@ -3,9 +3,6 @@
   <PropertyGroup>
     <IsPackable>false</IsPackable>
     <IsTestProject>true</IsTestProject>
-    <CollectCoverage>true</CollectCoverage>
-    <CoverletOutputFormat>opencover</CoverletOutputFormat>
-    <NoWarn>$(NoWarn);xUnit1013</NoWarn>
   </PropertyGroup>
 
   <ItemGroup>
@@ -14,15 +11,15 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="AngleSharp" Version="0.16.1" />
-    <PackageReference Include="FluentAssertions" Version="6.2.0" />
-    <PackageReference Include="GitHubActionsTestLogger" Version="1.2.0" />
+    <PackageReference Include="AngleSharp" Version="0.17.1" />
+    <PackageReference Include="FluentAssertions" Version="6.7.0" />
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1" PrivateAssets="all" />
     <PackageReference Include="JsonExtensions" Version="1.2.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
-    <PackageReference Include="coverlet.msbuild" Version="3.1.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.0" />
     <PackageReference Include="System.Reactive" Version="5.0.0" />
-    <PackageReference Include="xunit" Version="2.4.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" PrivateAssets="all" />
+    <PackageReference Include="xunit" Version="2.4.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" PrivateAssets="all" />
+    <PackageReference Include="coverlet.collector" Version="3.1.2" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>

DiscordChatExporter.Cli.Tests/Fixtures/ExportWrapperFixture.cs

@@ -14,10 +14,10 @@ using DiscordChatExporter.Core.Discord;
 using DiscordChatExporter.Core.Exporting;
 using JsonExtensions;
 
-namespace DiscordChatExporter.Cli.Tests.Fixtures
+namespace DiscordChatExporter.Cli.Tests.Fixtures;
+
+public class ExportWrapperFixture : IDisposable
 {
-    public class ExportWrapperFixture : IDisposable
-    {
     private string DirPath { get; } = Path.Combine(
         Path.GetDirectoryName(typeof(ExportWrapperFixture).Assembly.Location) ?? Directory.GetCurrentDirectory(),
         "ExportCache",
@@ -36,8 +36,7 @@ namespace DiscordChatExporter.Cli.Tests.Fixtures
         {
             await new ExportChannelsCommand
             {
-                    TokenValue = Secrets.DiscordToken,
-                    IsBotToken = Secrets.IsDiscordTokenBot,
+                Token = Secrets.DiscordToken,
                 ChannelIds = new[] { channelId },
                 ExportFormat = format,
                 OutputPath = filePath
@@ -47,47 +46,35 @@ namespace DiscordChatExporter.Cli.Tests.Fixtures
         return await File.ReadAllTextAsync(filePath);
     }
 
-        public async ValueTask<IHtmlDocument> ExportAsHtmlAsync(Snowflake channelId)
-        {
-            var data = await ExportAsync(channelId, ExportFormat.HtmlDark);
-            return Html.Parse(data);
-        }
+    public async ValueTask<IHtmlDocument> ExportAsHtmlAsync(Snowflake channelId) => Html.Parse(
+        await ExportAsync(channelId, ExportFormat.HtmlDark)
+    );
 
-        public async ValueTask<JsonElement> ExportAsJsonAsync(Snowflake channelId)
-        {
-            var data = await ExportAsync(channelId, ExportFormat.Json);
-            return Json.Parse(data);
-        }
+    public async ValueTask<JsonElement> ExportAsJsonAsync(Snowflake channelId) => Json.Parse(
+        await ExportAsync(channelId, ExportFormat.Json)
+    );
 
-        public async ValueTask<string> ExportAsPlainTextAsync(Snowflake channelId)
-        {
-            var data = await ExportAsync(channelId, ExportFormat.PlainText);
-            return data;
-        }
+    public async ValueTask<string> ExportAsPlainTextAsync(Snowflake channelId) =>
+        await ExportAsync(channelId, ExportFormat.PlainText);
 
-        public async ValueTask<string> ExportAsCsvAsync(Snowflake channelId)
-        {
-            var data = await ExportAsync(channelId, ExportFormat.Csv);
-            return data;
-        }
+    public async ValueTask<string> ExportAsCsvAsync(Snowflake channelId) =>
+        await ExportAsync(channelId, ExportFormat.Csv);
 
-        public async ValueTask<IReadOnlyList<IElement>> GetMessagesAsHtmlAsync(Snowflake channelId)
-        {
-            var document = await ExportAsHtmlAsync(channelId);
-            return document.QuerySelectorAll("[data-message-id]").ToArray();
-        }
+    public async ValueTask<IReadOnlyList<IElement>> GetMessagesAsHtmlAsync(Snowflake channelId) =>
+        (await ExportAsHtmlAsync(channelId))
+        .QuerySelectorAll("[data-message-id]")
+        .ToArray();
 
-        public async ValueTask<IReadOnlyList<JsonElement>> GetMessagesAsJsonAsync(Snowflake channelId)
-        {
-            var document = await ExportAsJsonAsync(channelId);
-            return document.GetProperty("messages").EnumerateArray().ToArray();
-        }
+    public async ValueTask<IReadOnlyList<JsonElement>> GetMessagesAsJsonAsync(Snowflake channelId) =>
+        (await ExportAsJsonAsync(channelId))
+        .GetProperty("messages")
+        .EnumerateArray()
+        .ToArray();
 
     public async ValueTask<IElement> GetMessageAsHtmlAsync(Snowflake channelId, Snowflake messageId)
     {
-            var messages = await GetMessagesAsHtmlAsync(channelId);
-
-            var message = messages.SingleOrDefault(e =>
+        var message = (await GetMessagesAsHtmlAsync(channelId))
+            .SingleOrDefault(e =>
                 string.Equals(
                     e.GetAttribute("data-message-id"),
                     messageId.ToString(),
@@ -98,7 +85,7 @@ namespace DiscordChatExporter.Cli.Tests.Fixtures
         if (message is null)
         {
             throw new InvalidOperationException(
-                    $"Message '{messageId}' does not exist in export of channel '{channelId}'."
+                $"Message '{messageId}' does not exist in the export of channel '{channelId}'."
             );
         }
 
@@ -107,9 +94,8 @@ namespace DiscordChatExporter.Cli.Tests.Fixtures
 
     public async ValueTask<JsonElement> GetMessageAsJsonAsync(Snowflake channelId, Snowflake messageId)
     {
-            var messages = await GetMessagesAsJsonAsync(channelId);
-
-            var message = messages.FirstOrDefault(j =>
+        var message = (await GetMessagesAsJsonAsync(channelId))
+            .SingleOrDefault(j =>
                 string.Equals(
                     j.GetProperty("id").GetString(),
                     messageId.ToString(),
@@ -120,7 +106,7 @@ namespace DiscordChatExporter.Cli.Tests.Fixtures
         if (message.ValueKind == JsonValueKind.Undefined)
         {
             throw new InvalidOperationException(
-                    $"Message '{messageId}' does not exist in export of channel '{channelId}'."
+                $"Message '{messageId}' does not exist in the export of channel '{channelId}'."
             );
         }
 
@@ -128,5 +114,4 @@ namespace DiscordChatExporter.Cli.Tests.Fixtures
     }
 
     public void Dispose() => DirectoryEx.DeleteIfExists(DirPath);
-    }
 }

DiscordChatExporter.Cli.Tests/Fixtures/TempOutputFixture.cs

@@ -2,10 +2,10 @@
 using System.IO;
 using DiscordChatExporter.Cli.Tests.Utils;
 
-namespace DiscordChatExporter.Cli.Tests.Fixtures
+namespace DiscordChatExporter.Cli.Tests.Fixtures;
+
+public class TempOutputFixture : IDisposable
 {
-    public class TempOutputFixture : IDisposable
-    {
     public string DirPath { get; } = Path.Combine(
         Path.GetDirectoryName(typeof(TempOutputFixture).Assembly.Location) ?? Directory.GetCurrentDirectory(),
         "Temp",
@@ -19,5 +19,4 @@ namespace DiscordChatExporter.Cli.Tests.Fixtures
     public string GetTempFilePath() => GetTempFilePath(Guid.NewGuid() + ".tmp");
 
     public void Dispose() => DirectoryEx.DeleteIfExists(DirPath);
-    }
 }

DiscordChatExporter.Cli.Tests/Infra/Secrets.cs

@@ -1,10 +1,10 @@
 using System;
 using System.IO;
 
-namespace DiscordChatExporter.Cli.Tests.Infra
+namespace DiscordChatExporter.Cli.Tests.Infra;
+
+internal static class Secrets
 {
-    internal static class Secrets
-    {
     private static readonly Lazy<string> DiscordTokenLazy = new(() =>
     {
         var fromEnvironment = Environment.GetEnvironmentVariable("DISCORD_TOKEN");
@@ -22,25 +22,5 @@ namespace DiscordChatExporter.Cli.Tests.Infra
         throw new InvalidOperationException("Discord token not provided for tests.");
     });
 
-        private static readonly Lazy<bool> IsDiscordTokenBotLazy = new(() =>
-        {
-            var fromEnvironment = Environment.GetEnvironmentVariable("DISCORD_TOKEN_BOT");
-            if (!string.IsNullOrWhiteSpace(fromEnvironment))
-                return string.Equals(fromEnvironment, "true", StringComparison.OrdinalIgnoreCase);
-
-            var secretFilePath = Path.Combine(
-                Path.GetDirectoryName(typeof(Secrets).Assembly.Location) ?? Directory.GetCurrentDirectory(),
-                "DiscordTokenBot.secret"
-            );
-
-            if (File.Exists(secretFilePath))
-                return true;
-
-            return false;
-        });
-
     public static string DiscordToken => DiscordTokenLazy.Value;
-
-        public static bool IsDiscordTokenBot => IsDiscordTokenBotLazy.Value;
-    }
 }

DiscordChatExporter.Cli.Tests/Readme.md

@@ -3,12 +3,11 @@
 This test suite runs against a real Discord server, specifically created to exercise different behaviors required by the test scenarios.
 In order to run these tests locally, you need to join the test server and configure your authentication token.
 
-1. Join the server: https://discord.gg/eRV8Vap5bm
+1. [Join the test server](https://discord.gg/eRV8Vap5bm)
 2. Locate your Discord authentication token
 3. Specify your token using a file or an environment variable:
     - **Using a file**: put your token in a new `DiscordToken.secret` file created in this directory
     - **Using an environment variable**: set `DISCORD_TOKEN` variable to your token
 4. Run the tests: `dotnet test`
 
-> If you want to have a new test case or a scenario added, please let me know in your pull request.
-Currently, it's not possible to add them by yourself.
+> If you want to add a new test case, please let me know and I will give you the required permissions

DiscordChatExporter.Cli.Tests/Specs/CsvWriting/ContentSpecs.cs

@@ -4,15 +4,22 @@ using DiscordChatExporter.Cli.Tests.TestData;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.CsvWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.CsvWriting;
+
+public class ContentSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record ContentSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public ContentSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Messages_are_exported_correctly()
     {
         // Act
-            var document = await ExportWrapper.ExportAsCsvAsync(ChannelIds.DateRangeTestCases);
+        var document = await _exportWrapper.ExportAsCsvAsync(ChannelIds.DateRangeTestCases);
 
         // Assert
         document.Should().ContainAll(
@@ -27,5 +34,4 @@ namespace DiscordChatExporter.Cli.Tests.Specs.CsvWriting
             "Yeet"
         );
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/DateRangeSpecs.cs

@@ -13,38 +13,42 @@ using FluentAssertions;
 using JsonExtensions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs
+namespace DiscordChatExporter.Cli.Tests.Specs;
+
+public class DateRangeSpecs : IClassFixture<TempOutputFixture>
 {
-    public record DateRangeSpecs(TempOutputFixture TempOutput) : IClassFixture<TempOutputFixture>
+    private readonly TempOutputFixture _tempOutput;
+
+    public DateRangeSpecs(TempOutputFixture tempOutput)
     {
+        _tempOutput = tempOutput;
+    }
+
     [Fact]
     public async Task Messages_filtered_after_specific_date_only_include_messages_sent_after_that_date()
     {
         // Arrange
         var after = new DateTimeOffset(2021, 07, 24, 0, 0, 0, TimeSpan.Zero);
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.DateRangeTestCases },
             ExportFormat = ExportFormat.Json,
             OutputPath = filePath,
             After = Snowflake.FromDate(after)
         }.ExecuteAsync(new FakeConsole());
 
-            var data = await File.ReadAllTextAsync(filePath);
-            var document = Json.Parse(data);
-
-            var timestamps = document
+        // Assert
+        var timestamps = Json
+            .Parse(await File.ReadAllTextAsync(filePath))
             .GetProperty("messages")
             .EnumerateArray()
             .Select(j => j.GetProperty("timestamp").GetDateTimeOffset())
             .ToArray();
 
-            // Assert
         timestamps.All(t => t > after).Should().BeTrue();
 
         timestamps.Should().BeEquivalentTo(new[]
@@ -69,29 +73,26 @@ namespace DiscordChatExporter.Cli.Tests.Specs
     {
         // Arrange
         var before = new DateTimeOffset(2021, 07, 24, 0, 0, 0, TimeSpan.Zero);
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.DateRangeTestCases },
             ExportFormat = ExportFormat.Json,
             OutputPath = filePath,
             Before = Snowflake.FromDate(before)
         }.ExecuteAsync(new FakeConsole());
 
-            var data = await File.ReadAllTextAsync(filePath);
-            var document = Json.Parse(data);
-
-            var timestamps = document
+        // Assert
+        var timestamps = Json
+            .Parse(await File.ReadAllTextAsync(filePath))
             .GetProperty("messages")
             .EnumerateArray()
             .Select(j => j.GetProperty("timestamp").GetDateTimeOffset())
             .ToArray();
 
-            // Assert
         timestamps.All(t => t < before).Should().BeTrue();
 
         timestamps.Should().BeEquivalentTo(new[]
@@ -115,13 +116,12 @@ namespace DiscordChatExporter.Cli.Tests.Specs
         // Arrange
         var after = new DateTimeOffset(2021, 07, 24, 0, 0, 0, TimeSpan.Zero);
         var before = new DateTimeOffset(2021, 08, 01, 0, 0, 0, TimeSpan.Zero);
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.DateRangeTestCases },
             ExportFormat = ExportFormat.Json,
             OutputPath = filePath,
@@ -129,16 +129,14 @@ namespace DiscordChatExporter.Cli.Tests.Specs
             After = Snowflake.FromDate(after)
         }.ExecuteAsync(new FakeConsole());
 
-            var data = await File.ReadAllTextAsync(filePath);
-            var document = Json.Parse(data);
-
-            var timestamps = document
+        // Assert
+        var timestamps = Json
+            .Parse(await File.ReadAllTextAsync(filePath))
             .GetProperty("messages")
             .EnumerateArray()
             .Select(j => j.GetProperty("timestamp").GetDateTimeOffset())
             .ToArray();
 
-            // Assert
         timestamps.All(t => t < before && t > after).Should().BeTrue();
 
         timestamps.Should().BeEquivalentTo(new[]
@@ -156,5 +154,4 @@ namespace DiscordChatExporter.Cli.Tests.Specs
                 .WhenTypeIs<DateTimeOffset>();
         });
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/FilterSpecs.cs

@@ -12,32 +12,36 @@ using FluentAssertions;
 using JsonExtensions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs
+namespace DiscordChatExporter.Cli.Tests.Specs;
+
+public class FilterSpecs : IClassFixture<TempOutputFixture>
 {
-    public record FilterSpecs(TempOutputFixture TempOutput) : IClassFixture<TempOutputFixture>
+    private readonly TempOutputFixture _tempOutput;
+
+    public FilterSpecs(TempOutputFixture tempOutput)
     {
+        _tempOutput = tempOutput;
+    }
+
     [Fact]
     public async Task Messages_filtered_by_text_only_include_messages_that_contain_that_text()
     {
         // Arrange
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.FilterTestCases },
             ExportFormat = ExportFormat.Json,
             OutputPath = filePath,
             MessageFilter = MessageFilter.Parse("some text")
         }.ExecuteAsync(new FakeConsole());
 
-            var data = await File.ReadAllTextAsync(filePath);
-            var document = Json.Parse(data);
-
         // Assert
-            document
+        Json
+            .Parse(await File.ReadAllTextAsync(filePath))
             .GetProperty("messages")
             .EnumerateArray()
             .Select(j => j.GetProperty("content").GetString())
@@ -49,24 +53,21 @@ namespace DiscordChatExporter.Cli.Tests.Specs
     public async Task Messages_filtered_by_author_only_include_messages_sent_by_that_author()
     {
         // Arrange
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.FilterTestCases },
             ExportFormat = ExportFormat.Json,
             OutputPath = filePath,
             MessageFilter = MessageFilter.Parse("from:Tyrrrz")
         }.ExecuteAsync(new FakeConsole());
 
-            var data = await File.ReadAllTextAsync(filePath);
-            var document = Json.Parse(data);
-
         // Assert
-            document
+        Json
+            .Parse(await File.ReadAllTextAsync(filePath))
             .GetProperty("messages")
             .EnumerateArray()
             .Select(j => j.GetProperty("author").GetProperty("name").GetString())
@@ -78,24 +79,21 @@ namespace DiscordChatExporter.Cli.Tests.Specs
     public async Task Messages_filtered_by_content_only_include_messages_that_have_that_content()
     {
         // Arrange
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.FilterTestCases },
             ExportFormat = ExportFormat.Json,
             OutputPath = filePath,
             MessageFilter = MessageFilter.Parse("has:image")
         }.ExecuteAsync(new FakeConsole());
 
-            var data = await File.ReadAllTextAsync(filePath);
-            var document = Json.Parse(data);
-
         // Assert
-            document
+        Json
+            .Parse(await File.ReadAllTextAsync(filePath))
             .GetProperty("messages")
             .EnumerateArray()
             .Select(j => j.GetProperty("content").GetString())
@@ -104,32 +102,54 @@ namespace DiscordChatExporter.Cli.Tests.Specs
     }
 
     [Fact]
-        public async Task Messages_filtered_by_mention_only_include_messages_that_have_that_mention()
+    public async Task Messages_filtered_by_pin_only_include_messages_that_have_been_pinned()
     {
         // Arrange
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
+            ChannelIds = new[] { ChannelIds.FilterTestCases },
+            ExportFormat = ExportFormat.Json,
+            OutputPath = filePath,
+            MessageFilter = MessageFilter.Parse("has:pin")
+        }.ExecuteAsync(new FakeConsole());
+
+        // Assert
+        Json
+            .Parse(await File.ReadAllTextAsync(filePath))
+            .GetProperty("messages")
+            .EnumerateArray()
+            .Select(j => j.GetProperty("content").GetString())
+            .Should()
+            .ContainSingle("This is pinned");
+    }
+
+    [Fact]
+    public async Task Messages_filtered_by_mention_only_include_messages_that_have_that_mention()
+    {
+        // Arrange
+        var filePath = _tempOutput.GetTempFilePath();
+
+        // Act
+        await new ExportChannelsCommand
+        {
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.FilterTestCases },
             ExportFormat = ExportFormat.Json,
             OutputPath = filePath,
             MessageFilter = MessageFilter.Parse("mentions:Tyrrrz")
         }.ExecuteAsync(new FakeConsole());
 
-            var data = await File.ReadAllTextAsync(filePath);
-            var document = Json.Parse(data);
-
         // Assert
-            document
+        Json
+            .Parse(await File.ReadAllTextAsync(filePath))
             .GetProperty("messages")
             .EnumerateArray()
             .Select(j => j.GetProperty("content").GetString())
             .Should()
             .ContainSingle("This has mention");
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/HtmlWriting/AttachmentSpecs.cs

@@ -1,4 +1,5 @@
-using System.Threading.Tasks;
+using System.Linq;
+using System.Threading.Tasks;
 using AngleSharp.Dom;
 using DiscordChatExporter.Cli.Tests.Fixtures;
 using DiscordChatExporter.Cli.Tests.TestData;
@@ -6,21 +7,26 @@ using DiscordChatExporter.Core.Discord;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting;
+
+public class AttachmentSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record AttachmentSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public AttachmentSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Message_with_a_generic_attachment_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.AttachmentTestCases,
             Snowflake.Parse("885587844989612074")
         );
 
-            var fileUrl = message.QuerySelector("a")?.GetAttribute("href");
-
         // Assert
         message.Text().Should().ContainAll(
             "Generic file attachment",
@@ -28,7 +34,11 @@ namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
             "11 bytes"
         );
 
-            fileUrl.Should().StartWithEquivalentOf(
+        message
+            .QuerySelectorAll("a")
+            .Select(e => e.GetAttribute("href"))
+            .Should()
+            .Contain(
                 "https://cdn.discordapp.com/attachments/885587741654536192/885587844964417596/Test.txt"
             );
     }
@@ -37,17 +47,19 @@ namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
     public async Task Message_with_an_image_attachment_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.AttachmentTestCases,
             Snowflake.Parse("885654862656843786")
         );
 
-            var imageUrl = message.QuerySelector("img")?.GetAttribute("src");
-
         // Assert
         message.Text().Should().Contain("Image attachment");
 
-            imageUrl.Should().StartWithEquivalentOf(
+        message
+            .QuerySelectorAll("img")
+            .Select(e => e.GetAttribute("src"))
+            .Should()
+            .Contain(
                 "https://cdn.discordapp.com/attachments/885587741654536192/885654862430359613/bird-thumbnail.png"
             );
     }
@@ -55,18 +67,19 @@ namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
     [Fact]
     public async Task Message_with_a_video_attachment_is_rendered_correctly()
     {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/333
+
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.AttachmentTestCases,
             Snowflake.Parse("885655761919836171")
         );
 
-            var videoUrl = message.QuerySelector("video source")?.GetAttribute("src");
-
         // Assert
         message.Text().Should().Contain("Video attachment");
 
-            videoUrl.Should().StartWithEquivalentOf(
+        var videoUrl = message.QuerySelector("video source")?.GetAttribute("src");
+        videoUrl.Should().Be(
             "https://cdn.discordapp.com/attachments/885587741654536192/885655761512968233/file_example_MP4_640_3MG.mp4"
         );
     }
@@ -74,20 +87,20 @@ namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
     [Fact]
     public async Task Message_with_an_audio_attachment_is_rendered_correctly()
     {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/333
+
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.AttachmentTestCases,
             Snowflake.Parse("885656175620808734")
         );
 
-            var audioUrl = message.QuerySelector("audio source")?.GetAttribute("src");
-
         // Assert
         message.Text().Should().Contain("Audio attachment");
 
-            audioUrl.Should().StartWithEquivalentOf(
+        var audioUrl = message.QuerySelector("audio source")?.GetAttribute("src");
+        audioUrl.Should().Be(
             "https://cdn.discordapp.com/attachments/885587741654536192/885656175348187146/file_example_MP3_1MG.mp3"
         );
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/HtmlWriting/ContentSpecs.cs

@@ -6,15 +6,22 @@ using DiscordChatExporter.Cli.Tests.TestData;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting;
+
+public class ContentSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record ContentSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public ContentSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Messages_are_exported_correctly()
     {
         // Act
-            var messages = await ExportWrapper.GetMessagesAsHtmlAsync(ChannelIds.DateRangeTestCases);
+        var messages = await _exportWrapper.GetMessagesAsHtmlAsync(ChannelIds.DateRangeTestCases);
 
         // Assert
         messages.Select(e => e.GetAttribute("data-message-id")).Should().Equal(
@@ -28,7 +35,7 @@ namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
             "885169254029213696"
         );
 
-            messages.Select(e => e.QuerySelector(".chatlog__content")?.Text().Trim()).Should().Equal(
+        messages.SelectMany(e => e.Text()).Should().ContainInOrder(
             "Hello world",
             "Goodbye world",
             "Foo bar",
@@ -39,5 +46,4 @@ namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
             "Yeet"
         );
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/HtmlWriting/EmbedSpecs.cs

@@ -1,4 +1,5 @@
-using System.Threading.Tasks;
+using System.Linq;
+using System.Threading.Tasks;
 using AngleSharp.Dom;
 using DiscordChatExporter.Cli.Tests.Fixtures;
 using DiscordChatExporter.Cli.Tests.TestData;
@@ -6,15 +7,22 @@ using DiscordChatExporter.Core.Discord;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting;
+
+public class EmbedSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record EmbedSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public EmbedSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Message_with_an_embed_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.EmbedTestCases,
             Snowflake.Parse("866769910729146400")
         );
@@ -32,33 +40,95 @@ namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
     }
 
     [Fact]
-        public async Task Message_with_a_Spotify_track_is_rendered_using_an_iframe()
+    public async Task Message_containing_an_image_link_is_rendered_with_an_image_embed()
     {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/537
+
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
+            ChannelIds.EmbedTestCases,
+            Snowflake.Parse("991768701126852638")
+        );
+
+        // Assert
+        message
+            .QuerySelectorAll("img")
+            .Select(e => e.GetAttribute("src"))
+            .Should()
+            .Contain("https://i.redd.it/f8w05ja8s4e61.png");
+    }
+
+    [Fact]
+    public async Task Message_containing_an_image_link_and_nothing_else_is_rendered_without_text_content()
+    {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/682
+
+        // Act
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
+            ChannelIds.EmbedTestCases,
+            Snowflake.Parse("991768701126852638")
+        );
+
+        // Assert
+        var content = message.QuerySelector(".chatlog__content")?.Text();
+        content.Should().BeNullOrEmpty();
+    }
+
+    [Fact]
+    public async Task Message_containing_a_Spotify_track_link_is_rendered_with_a_track_embed()
+    {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/657
+
+        // Act
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.EmbedTestCases,
             Snowflake.Parse("867886632203976775")
         );
 
-            var iframeSrc = message.QuerySelector("iframe")?.GetAttribute("src");
-
         // Assert
-            iframeSrc.Should().StartWithEquivalentOf("https://open.spotify.com/embed/track/1LHZMWefF9502NPfArRfvP");
+        var iframeUrl = message.QuerySelector("iframe")?.GetAttribute("src");
+        iframeUrl.Should().Be("https://open.spotify.com/embed/track/1LHZMWefF9502NPfArRfvP");
     }
 
     [Fact]
-        public async Task Message_with_a_YouTube_video_is_rendered_using_an_iframe()
+    public async Task Message_containing_a_YouTube_video_link_is_rendered_with_a_video_embed()
     {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/570
+
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.EmbedTestCases,
             Snowflake.Parse("866472508588294165")
         );
 
-            var iframeSrc = message.QuerySelector("iframe")?.GetAttribute("src");
+        // Assert
+        var iframeUrl = message.QuerySelector("iframe")?.GetAttribute("src");
+        iframeUrl.Should().Be("https://www.youtube.com/embed/qOWW4OlgbvE");
+    }
+
+    [Fact]
+    public async Task Message_containing_a_Twitter_post_link_with_multiple_images_is_rendered_as_a_single_embed()
+    {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/695
+
+        // Act
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
+            ChannelIds.EmbedTestCases,
+            Snowflake.Parse("991757444017557665")
+        );
 
         // Assert
-            iframeSrc.Should().StartWithEquivalentOf("https://www.youtube.com/embed/qOWW4OlgbvE");
-        }
+        message
+            .QuerySelectorAll("img")
+            .Select(e => e.GetAttribute("src"))
+            .Should()
+            .ContainInOrder(
+                "https://images-ext-1.discordapp.net/external/-n--xW3EHH_3jlrheVkMXHCM7T86b5Ty4-MzXCT4m1Q/https/pbs.twimg.com/media/FVYIzYPWAAAMBqZ.png",
+                "https://images-ext-2.discordapp.net/external/z5nEmGeEldV-kswydGLhqUsFHbb5AWHtdvc9XT6N5rE/https/pbs.twimg.com/media/FVYJBWJWAAMNAx2.png",
+                "https://images-ext-2.discordapp.net/external/gnip03SawMB6uZLagN5sRDpA_1Ap1CcEhMbJfK1z6WQ/https/pbs.twimg.com/media/FVYJHiRX0AANZcz.png",
+                "https://images-ext-2.discordapp.net/external/jl1v6cCbLaGmiwmKU-ZkXnF4cFsJ39f9A3-oEdqPdZs/https/pbs.twimg.com/media/FVYJNZNXwAAPnVG.png"
+            );
+
+        message.QuerySelectorAll(".chatlog__embed").Should().ContainSingle();
     }
 }

DiscordChatExporter.Cli.Tests/Specs/HtmlWriting/GroupingSpecs.cs

@@ -0,0 +1,79 @@
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using AngleSharp.Dom;
+using CliFx.Infrastructure;
+using DiscordChatExporter.Cli.Commands;
+using DiscordChatExporter.Cli.Tests.Fixtures;
+using DiscordChatExporter.Cli.Tests.Infra;
+using DiscordChatExporter.Cli.Tests.TestData;
+using DiscordChatExporter.Cli.Tests.Utils;
+using DiscordChatExporter.Core.Exporting;
+using FluentAssertions;
+using Xunit;
+
+namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting;
+
+public class GroupingSpecs : IClassFixture<TempOutputFixture>
+{
+    private readonly TempOutputFixture _tempOutput;
+
+    public GroupingSpecs(TempOutputFixture tempOutput)
+    {
+        _tempOutput = tempOutput;
+    }
+
+    [Fact]
+    public async Task Messages_are_grouped_correctly()
+    {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/152
+
+        // Arrange
+        var filePath = _tempOutput.GetTempFilePath();
+
+        // Act
+        await new ExportChannelsCommand
+        {
+            Token = Secrets.DiscordToken,
+            ChannelIds = new[] { ChannelIds.GroupingTestCases },
+            ExportFormat = ExportFormat.HtmlDark,
+            OutputPath = filePath
+        }.ExecuteAsync(new FakeConsole());
+
+        // Assert
+        var messageGroups = Html
+            .Parse(await File.ReadAllTextAsync(filePath))
+            .QuerySelectorAll(".chatlog__message-group");
+
+        messageGroups.Should().HaveCount(2);
+
+        messageGroups[0]
+            .QuerySelectorAll(".chatlog__content")
+            .Select(e => e.Text())
+            .Should()
+            .ContainInOrder(
+                "First",
+                "Second",
+                "Third",
+                "Fourth",
+                "Fifth",
+                "Sixth",
+                "Seventh",
+                "Eighth",
+                "Ninth",
+                "Tenth"
+            );
+
+        messageGroups[1]
+            .QuerySelectorAll(".chatlog__content")
+            .Select(e => e.Text())
+            .Should()
+            .ContainInOrder(
+                "Eleventh",
+                "Twelveth",
+                "Thirteenth",
+                "Fourteenth",
+                "Fifteenth"
+            );
+    }
+}

DiscordChatExporter.Cli.Tests/Specs/HtmlWriting/MentionSpecs.cs

@@ -6,21 +6,28 @@ using DiscordChatExporter.Core.Discord;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting;
+
+public class MentionSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record MentionSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public MentionSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task User_mention_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.MentionTestCases,
             Snowflake.Parse("866458840245076028")
         );
 
         // Assert
-            message.Text().Trim().Should().Be("User mention: @Tyrrrz");
+        message.Text().Should().Contain("User mention: @Tyrrrz");
         message.InnerHtml.Should().Contain("Tyrrrz#5447");
     }
 
@@ -28,39 +35,38 @@ namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
     public async Task Text_channel_mention_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.MentionTestCases,
             Snowflake.Parse("866459040480624680")
         );
 
         // Assert
-            message.Text().Trim().Should().Be("Text channel mention: #mention-tests");
+        message.Text().Should().Contain("Text channel mention: #mention-tests");
     }
 
     [Fact]
     public async Task Voice_channel_mention_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.MentionTestCases,
             Snowflake.Parse("866459175462633503")
         );
 
         // Assert
-            message.Text().Trim().Should().Be("Voice channel mention: 🔊chaos-vc");
+        message.Text().Should().Contain("Voice channel mention: 🔊chaos-vc");
     }
 
     [Fact]
     public async Task Role_mention_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.MentionTestCases,
             Snowflake.Parse("866459254693429258")
         );
 
         // Assert
-            message.Text().Trim().Should().Be("Role mention: @Role 1");
-        }
+        message.Text().Should().Contain("Role mention: @Role 1");
     }
 }

DiscordChatExporter.Cli.Tests/Specs/HtmlWriting/ReplySpecs.cs

@@ -6,52 +6,62 @@ using DiscordChatExporter.Core.Discord;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting;
+
+public class ReplySpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record ReplySpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public ReplySpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Reply_to_a_normal_message_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.ReplyTestCases,
             Snowflake.Parse("866460738239725598")
         );
 
         // Assert
-            message.Text().Trim().Should().Be("reply to original");
-            message.QuerySelector(".chatlog__reference-link")?.Text().Trim().Should().Be("original");
+        message.Text().Should().Contain("reply to original");
+        message.QuerySelector(".chatlog__reference-link")?.Text().Should().Contain("original");
     }
 
     [Fact]
     public async Task Reply_to_a_deleted_message_is_rendered_correctly()
     {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/645
+
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.ReplyTestCases,
             Snowflake.Parse("866460975388819486")
         );
 
         // Assert
-            message.Text().Trim().Should().Be("reply to deleted");
-            message.QuerySelector(".chatlog__reference-link")?.Text().Trim().Should()
-                .Be("Original message was deleted or could not be loaded.");
+        message.Text().Should().Contain("reply to deleted");
+        message.QuerySelector(".chatlog__reference-link")?.Text().Should().Contain(
+            "Original message was deleted or could not be loaded."
+        );
     }
 
     [Fact]
-        public async Task Reply_to_a_empty_message_with_attachment_is_rendered_correctly()
+    public async Task Reply_to_an_empty_message_with_attachment_is_rendered_correctly()
     {
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/634
+
         // Act
-            var message = await ExportWrapper.GetMessageAsHtmlAsync(
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
             ChannelIds.ReplyTestCases,
             Snowflake.Parse("866462470335627294")
         );
 
         // Assert
-            message.Text().Trim().Should().Be("reply to attachment");
-            message.QuerySelector(".chatlog__reference-link")?.Text().Trim().Should()
-                .Be("Click to see attachment 🖼️");
-        }
+        message.Text().Should().Contain("reply to attachment");
+        message.QuerySelector(".chatlog__reference-link")?.Text().Should().Contain("Click to see attachment");
     }
 }

DiscordChatExporter.Cli.Tests/Specs/HtmlWriting/StickerSpecs.cs

@@ -0,0 +1,46 @@
+using System.Threading.Tasks;
+using DiscordChatExporter.Cli.Tests.Fixtures;
+using DiscordChatExporter.Cli.Tests.TestData;
+using DiscordChatExporter.Core.Discord;
+using FluentAssertions;
+using Xunit;
+
+namespace DiscordChatExporter.Cli.Tests.Specs.HtmlWriting;
+
+public class StickerSpecs : IClassFixture<ExportWrapperFixture>
+{
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public StickerSpecs(ExportWrapperFixture exportWrapper)
+    {
+        _exportWrapper = exportWrapper;
+    }
+
+    [Fact]
+    public async Task Message_with_a_PNG_based_sticker_is_rendered_correctly()
+    {
+        // Act
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
+            ChannelIds.StickerTestCases,
+            Snowflake.Parse("939670623158943754")
+        );
+
+        // Assert
+        var stickerUrl = message.QuerySelector("[title='rock'] img")?.GetAttribute("src");
+        stickerUrl.Should().Be("https://discord.com/stickers/904215665597120572.png");
+    }
+
+    [Fact]
+    public async Task Message_with_a_Lottie_based_sticker_is_rendered_correctly()
+    {
+        // Act
+        var message = await _exportWrapper.GetMessageAsHtmlAsync(
+            ChannelIds.StickerTestCases,
+            Snowflake.Parse("939670526517997590")
+        );
+
+        // Assert
+        var stickerUrl = message.QuerySelector("[title='Yikes'] [data-source]")?.GetAttribute("data-source");
+        stickerUrl.Should().Be("https://discord.com/stickers/816087132447178774.json");
+    }
+}

DiscordChatExporter.Cli.Tests/Specs/JsonWriting/AttachmentSpecs.cs

@@ -6,26 +6,32 @@ using DiscordChatExporter.Core.Discord;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting;
+
+public class AttachmentSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record AttachmentSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public AttachmentSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Message_with_a_generic_attachment_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.AttachmentTestCases,
             Snowflake.Parse("885587844989612074")
         );
 
-            var attachments = message.GetProperty("attachments").EnumerateArray().ToArray();
-
         // Assert
         message.GetProperty("content").GetString().Should().Be("Generic file attachment");
 
+        var attachments = message.GetProperty("attachments").EnumerateArray().ToArray();
         attachments.Should().HaveCount(1);
-            attachments.Single().GetProperty("url").GetString().Should().StartWithEquivalentOf(
+        attachments.Single().GetProperty("url").GetString().Should().Be(
             "https://cdn.discordapp.com/attachments/885587741654536192/885587844964417596/Test.txt"
         );
         attachments.Single().GetProperty("fileName").GetString().Should().Be("Test.txt");
@@ -36,18 +42,17 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
     public async Task Message_with_an_image_attachment_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.AttachmentTestCases,
             Snowflake.Parse("885654862656843786")
         );
 
-            var attachments = message.GetProperty("attachments").EnumerateArray().ToArray();
-
         // Assert
         message.GetProperty("content").GetString().Should().Be("Image attachment");
 
+        var attachments = message.GetProperty("attachments").EnumerateArray().ToArray();
         attachments.Should().HaveCount(1);
-            attachments.Single().GetProperty("url").GetString().Should().StartWithEquivalentOf(
+        attachments.Single().GetProperty("url").GetString().Should().Be(
             "https://cdn.discordapp.com/attachments/885587741654536192/885654862430359613/bird-thumbnail.png"
         );
         attachments.Single().GetProperty("fileName").GetString().Should().Be("bird-thumbnail.png");
@@ -58,18 +63,17 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
     public async Task Message_with_a_video_attachment_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.AttachmentTestCases,
             Snowflake.Parse("885655761919836171")
         );
 
-            var attachments = message.GetProperty("attachments").EnumerateArray().ToArray();
-
         // Assert
         message.GetProperty("content").GetString().Should().Be("Video attachment");
 
+        var attachments = message.GetProperty("attachments").EnumerateArray().ToArray();
         attachments.Should().HaveCount(1);
-            attachments.Single().GetProperty("url").GetString().Should().StartWithEquivalentOf(
+        attachments.Single().GetProperty("url").GetString().Should().Be(
             "https://cdn.discordapp.com/attachments/885587741654536192/885655761512968233/file_example_MP4_640_3MG.mp4"
         );
         attachments.Single().GetProperty("fileName").GetString().Should().Be("file_example_MP4_640_3MG.mp4");
@@ -80,22 +84,20 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
     public async Task Message_with_an_audio_attachment_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.AttachmentTestCases,
             Snowflake.Parse("885656175620808734")
         );
 
-            var attachments = message.GetProperty("attachments").EnumerateArray().ToArray();
-
         // Assert
         message.GetProperty("content").GetString().Should().Be("Audio attachment");
 
+        var attachments = message.GetProperty("attachments").EnumerateArray().ToArray();
         attachments.Should().HaveCount(1);
-            attachments.Single().GetProperty("url").GetString().Should().StartWithEquivalentOf(
+        attachments.Single().GetProperty("url").GetString().Should().Be(
             "https://cdn.discordapp.com/attachments/885587741654536192/885656175348187146/file_example_MP3_1MG.mp3"
         );
         attachments.Single().GetProperty("fileName").GetString().Should().Be("file_example_MP3_1MG.mp3");
         attachments.Single().GetProperty("fileSizeBytes").GetInt64().Should().Be(1087849);
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/JsonWriting/ContentSpecs.cs

@@ -5,15 +5,22 @@ using DiscordChatExporter.Cli.Tests.TestData;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting;
+
+public class ContentSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record ContentSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public ContentSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Messages_are_exported_correctly()
     {
         // Act
-            var messages = await ExportWrapper.GetMessagesAsJsonAsync(ChannelIds.DateRangeTestCases);
+        var messages = await _exportWrapper.GetMessagesAsJsonAsync(ChannelIds.DateRangeTestCases);
 
         // Assert
         messages.Select(j => j.GetProperty("id").GetString()).Should().Equal(
@@ -38,5 +45,4 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
             "Yeet"
         );
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/JsonWriting/EmbedSpecs.cs

@@ -6,43 +6,49 @@ using DiscordChatExporter.Core.Discord;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting;
+
+public class EmbedSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record EmbedSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public EmbedSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Message_with_an_embed_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.EmbedTestCases,
             Snowflake.Parse("866769910729146400")
         );
 
-            var embed = message
-                .GetProperty("embeds")
-                .EnumerateArray()
-                .Single();
-
-            var embedAuthor = embed.GetProperty("author");
-            var embedThumbnail = embed.GetProperty("thumbnail");
-            var embedFooter = embed.GetProperty("footer");
-            var embedFields = embed.GetProperty("fields").EnumerateArray().ToArray();
-
         // Assert
+        var embed = message.GetProperty("embeds").EnumerateArray().Single();
         embed.GetProperty("title").GetString().Should().Be("Embed title");
         embed.GetProperty("url").GetString().Should().Be("https://example.com");
         embed.GetProperty("timestamp").GetString().Should().Be("2021-07-14T21:00:00+00:00");
         embed.GetProperty("description").GetString().Should().Be("**Embed** _description_");
         embed.GetProperty("color").GetString().Should().Be("#58B9FF");
+
+        var embedAuthor = embed.GetProperty("author");
         embedAuthor.GetProperty("name").GetString().Should().Be("Embed author");
         embedAuthor.GetProperty("url").GetString().Should().Be("https://example.com/author");
         embedAuthor.GetProperty("iconUrl").GetString().Should().NotBeNullOrWhiteSpace();
+
+        var embedThumbnail = embed.GetProperty("thumbnail");
         embedThumbnail.GetProperty("url").GetString().Should().NotBeNullOrWhiteSpace();
         embedThumbnail.GetProperty("width").GetInt32().Should().Be(120);
         embedThumbnail.GetProperty("height").GetInt32().Should().Be(120);
+
+        var embedFooter = embed.GetProperty("footer");
         embedFooter.GetProperty("text").GetString().Should().Be("Embed footer");
         embedFooter.GetProperty("iconUrl").GetString().Should().NotBeNullOrWhiteSpace();
+
+        var embedFields = embed.GetProperty("fields").EnumerateArray().ToArray();
         embedFields.Should().HaveCount(3);
         embedFields[0].GetProperty("name").GetString().Should().Be("Field 1");
         embedFields[0].GetProperty("value").GetString().Should().Be("Value 1");
@@ -54,5 +60,4 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
         embedFields[2].GetProperty("value").GetString().Should().Be("Value 3");
         embedFields[2].GetProperty("isInline").GetBoolean().Should().BeTrue();
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/JsonWriting/MentionSpecs.cs

@@ -6,15 +6,22 @@ using DiscordChatExporter.Core.Discord;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting;
+
+public class MentionSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record MentionSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public MentionSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task User_mention_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.MentionTestCases,
             Snowflake.Parse("866458840245076028")
         );
@@ -26,14 +33,15 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
             .GetProperty("mentions")
             .EnumerateArray()
             .Select(j => j.GetProperty("id").GetString())
-                .Should().Contain("128178626683338752");
+            .Should()
+            .Contain("128178626683338752");
     }
 
     [Fact]
     public async Task Text_channel_mention_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.MentionTestCases,
             Snowflake.Parse("866459040480624680")
         );
@@ -46,7 +54,7 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
     public async Task Voice_channel_mention_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.MentionTestCases,
             Snowflake.Parse("866459175462633503")
         );
@@ -59,7 +67,7 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
     public async Task Role_mention_is_rendered_correctly()
     {
         // Act
-            var message = await ExportWrapper.GetMessageAsJsonAsync(
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
             ChannelIds.MentionTestCases,
             Snowflake.Parse("866459254693429258")
         );
@@ -67,5 +75,4 @@ namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting
         // Assert
         message.GetProperty("content").GetString().Should().Be("Role mention: @Role 1");
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/JsonWriting/StickerSpecs.cs

@@ -0,0 +1,61 @@
+using System.Linq;
+using System.Threading.Tasks;
+using DiscordChatExporter.Cli.Tests.Fixtures;
+using DiscordChatExporter.Cli.Tests.TestData;
+using DiscordChatExporter.Core.Discord;
+using FluentAssertions;
+using Xunit;
+
+namespace DiscordChatExporter.Cli.Tests.Specs.JsonWriting;
+
+public class StickerSpecs : IClassFixture<ExportWrapperFixture>
+{
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public StickerSpecs(ExportWrapperFixture exportWrapper)
+    {
+        _exportWrapper = exportWrapper;
+    }
+
+    [Fact]
+    public async Task Message_with_a_PNG_based_sticker_is_rendered_correctly()
+    {
+        // Act
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
+            ChannelIds.StickerTestCases,
+            Snowflake.Parse("939670623158943754")
+        );
+
+        // Assert
+        var sticker = message
+            .GetProperty("stickers")
+            .EnumerateArray()
+            .Single();
+
+        sticker.GetProperty("id").GetString().Should().Be("904215665597120572");
+        sticker.GetProperty("name").GetString().Should().Be("rock");
+        sticker.GetProperty("format").GetString().Should().Be("PngAnimated");
+        sticker.GetProperty("sourceUrl").GetString().Should().Be("https://discord.com/stickers/904215665597120572.png");
+    }
+
+    [Fact]
+    public async Task Message_with_a_Lottie_based_sticker_is_rendered_correctly()
+    {
+        // Act
+        var message = await _exportWrapper.GetMessageAsJsonAsync(
+            ChannelIds.StickerTestCases,
+            Snowflake.Parse("939670526517997590")
+        );
+
+        // Assert
+        var sticker = message
+            .GetProperty("stickers")
+            .EnumerateArray()
+            .Single();
+
+        sticker.GetProperty("id").GetString().Should().Be("816087132447178774");
+        sticker.GetProperty("name").GetString().Should().Be("Yikes");
+        sticker.GetProperty("format").GetString().Should().Be("Lottie");
+        sticker.GetProperty("sourceUrl").GetString().Should().Be("https://discord.com/stickers/816087132447178774.json");
+    }
+}

DiscordChatExporter.Cli.Tests/Specs/PartitioningSpecs.cs

@@ -10,23 +10,29 @@ using DiscordChatExporter.Core.Exporting.Partitioning;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs
+namespace DiscordChatExporter.Cli.Tests.Specs;
+
+public class PartitioningSpecs : IClassFixture<TempOutputFixture>
 {
-    public record PartitioningSpecs(TempOutputFixture TempOutput) : IClassFixture<TempOutputFixture>
+    private readonly TempOutputFixture _tempOutput;
+
+    public PartitioningSpecs(TempOutputFixture tempOutput)
     {
+        _tempOutput = tempOutput;
+    }
+
     [Fact]
-        public async Task Messages_partitioned_by_count_are_split_into_multiple_files_correctly()
+    public async Task Messages_partitioned_by_count_are_split_into_a_corresponding_number_of_files()
     {
         // Arrange
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
         var fileNameWithoutExt = Path.GetFileNameWithoutExtension(filePath);
         var dirPath = Path.GetDirectoryName(filePath) ?? Directory.GetCurrentDirectory();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.DateRangeTestCases },
             ExportFormat = ExportFormat.HtmlDark,
             OutputPath = filePath,
@@ -40,28 +46,26 @@ namespace DiscordChatExporter.Cli.Tests.Specs
     }
 
     [Fact]
-        public async Task Messages_partitioned_by_file_size_are_split_into_multiple_files_correctly()
+    public async Task Messages_partitioned_by_file_size_are_split_into_a_corresponding_number_of_files()
     {
         // Arrange
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
         var fileNameWithoutExt = Path.GetFileNameWithoutExtension(filePath);
         var dirPath = Path.GetDirectoryName(filePath) ?? Directory.GetCurrentDirectory();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.DateRangeTestCases },
             ExportFormat = ExportFormat.HtmlDark,
             OutputPath = filePath,
-                PartitionLimit = PartitionLimit.Parse("20kb")
+            PartitionLimit = PartitionLimit.Parse("1kb")
         }.ExecuteAsync(new FakeConsole());
 
         // Assert
         Directory.EnumerateFiles(dirPath, fileNameWithoutExt + "*")
             .Should()
-                .HaveCount(2);
-        }
+            .HaveCount(8);
     }
 }

DiscordChatExporter.Cli.Tests/Specs/PlainTextWriting/ContentSpecs.cs

@@ -4,15 +4,22 @@ using DiscordChatExporter.Cli.Tests.TestData;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs.PlainTextWriting
+namespace DiscordChatExporter.Cli.Tests.Specs.PlainTextWriting;
+
+public class ContentSpecs : IClassFixture<ExportWrapperFixture>
 {
-    public record ContentSpecs(ExportWrapperFixture ExportWrapper) : IClassFixture<ExportWrapperFixture>
+    private readonly ExportWrapperFixture _exportWrapper;
+
+    public ContentSpecs(ExportWrapperFixture exportWrapper)
     {
+        _exportWrapper = exportWrapper;
+    }
+
     [Fact]
     public async Task Messages_are_exported_correctly()
     {
         // Act
-            var document = await ExportWrapper.ExportAsPlainTextAsync(ChannelIds.DateRangeTestCases);
+        var document = await _exportWrapper.ExportAsPlainTextAsync(ChannelIds.DateRangeTestCases);
 
         // Assert
         document.Should().ContainAll(
@@ -27,5 +34,4 @@ namespace DiscordChatExporter.Cli.Tests.Specs.PlainTextWriting
             "Yeet"
         );
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Specs/SelfContainedSpecs.cs

@@ -11,33 +11,37 @@ using DiscordChatExporter.Core.Exporting;
 using FluentAssertions;
 using Xunit;
 
-namespace DiscordChatExporter.Cli.Tests.Specs
+namespace DiscordChatExporter.Cli.Tests.Specs;
+
+public class SelfContainedSpecs : IClassFixture<TempOutputFixture>
 {
-    public record SelfContainedSpecs(TempOutputFixture TempOutput) : IClassFixture<TempOutputFixture>
+    private readonly TempOutputFixture _tempOutput;
+
+    public SelfContainedSpecs(TempOutputFixture tempOutput)
     {
+        _tempOutput = tempOutput;
+    }
+
     [Fact]
     public async Task Messages_in_self_contained_export_only_reference_local_file_resources()
     {
         // Arrange
-            var filePath = TempOutput.GetTempFilePath();
+        var filePath = _tempOutput.GetTempFilePath();
         var dirPath = Path.GetDirectoryName(filePath) ?? Directory.GetCurrentDirectory();
 
         // Act
         await new ExportChannelsCommand
         {
-                TokenValue = Secrets.DiscordToken,
-                IsBotToken = Secrets.IsDiscordTokenBot,
+            Token = Secrets.DiscordToken,
             ChannelIds = new[] { ChannelIds.SelfContainedTestCases },
             ExportFormat = ExportFormat.HtmlDark,
             OutputPath = filePath,
             ShouldDownloadMedia = true
         }.ExecuteAsync(new FakeConsole());
 
-            var data = await File.ReadAllTextAsync(filePath);
-            var document = Html.Parse(data);
-
         // Assert
-            document
+        Html
+            .Parse(await File.ReadAllTextAsync(filePath))
             .QuerySelectorAll("body [src]")
             .Select(e => e.GetAttribute("src")!)
             .Select(f => Path.GetFullPath(f, dirPath))
@@ -45,5 +49,4 @@ namespace DiscordChatExporter.Cli.Tests.Specs
             .Should()
             .BeTrue();
     }
-    }
 }

DiscordChatExporter.Cli.Tests/TestData/ChannelIds.cs

@@ -1,15 +1,17 @@
 using DiscordChatExporter.Core.Discord;
 
-namespace DiscordChatExporter.Cli.Tests.TestData
+namespace DiscordChatExporter.Cli.Tests.TestData;
+
+public static class ChannelIds
 {
-    public static class ChannelIds
-    {
     public static Snowflake AttachmentTestCases { get; } = Snowflake.Parse("885587741654536192");
 
     public static Snowflake DateRangeTestCases { get; } = Snowflake.Parse("866674248747319326");
 
     public static Snowflake EmbedTestCases { get; } = Snowflake.Parse("866472452459462687");
 
+    public static Snowflake GroupingTestCases { get; } = Snowflake.Parse("992092091545034842");
+
     public static Snowflake FilterTestCases { get; } = Snowflake.Parse("866744075033641020");
 
     public static Snowflake MentionTestCases { get; } = Snowflake.Parse("866458801389174794");
@@ -17,5 +19,6 @@ namespace DiscordChatExporter.Cli.Tests.TestData
     public static Snowflake ReplyTestCases { get; } = Snowflake.Parse("866459871934677052");
 
     public static Snowflake SelfContainedTestCases { get; } = Snowflake.Parse("887441432678379560");
-    }
+
+    public static Snowflake StickerTestCases { get; } = Snowflake.Parse("939668868253769729");
 }

DiscordChatExporter.Cli.Tests/Utils/DirectoryEx.cs

@@ -1,9 +1,9 @@
 using System.IO;
 
-namespace DiscordChatExporter.Cli.Tests.Utils
+namespace DiscordChatExporter.Cli.Tests.Utils;
+
+internal static class DirectoryEx
 {
-    internal static class DirectoryEx
-    {
     public static void DeleteIfExists(string dirPath, bool recursive = true)
     {
         try
@@ -20,5 +20,4 @@ namespace DiscordChatExporter.Cli.Tests.Utils
         DeleteIfExists(dirPath);
         Directory.CreateDirectory(dirPath);
     }
-    }
 }

DiscordChatExporter.Cli.Tests/Utils/Html.cs

@@ -1,12 +1,11 @@
 using AngleSharp.Html.Dom;
 using AngleSharp.Html.Parser;
 
-namespace DiscordChatExporter.Cli.Tests.Utils
+namespace DiscordChatExporter.Cli.Tests.Utils;
+
+internal static class Html
 {
-    internal static class Html
-    {
     private static readonly IHtmlParser Parser = new HtmlParser();
 
     public static IHtmlDocument Parse(string source) => Parser.ParseDocument(source);
-    }
 }

DiscordChatExporter.Cli.dockerfile

@@ -0,0 +1,18 @@
+# Build
+FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
+
+COPY favicon.ico ./
+COPY NuGet.config ./
+COPY Directory.Build.props ./
+COPY DiscordChatExporter.Core ./DiscordChatExporter.Core
+COPY DiscordChatExporter.Cli ./DiscordChatExporter.Cli
+
+RUN dotnet publish DiscordChatExporter.Cli -c Release -o ./publish
+
+# Run
+FROM mcr.microsoft.com/dotnet/runtime:6.0 AS run
+
+COPY --from=build ./publish ./
+
+WORKDIR ./out
+ENTRYPOINT ["dotnet", "/DiscordChatExporter.Cli.dll"]

DiscordChatExporter.Cli/Commands/Base/ExportCommandBase.cs

@@ -14,40 +14,82 @@ using DiscordChatExporter.Core.Exceptions;
 using DiscordChatExporter.Core.Exporting;
 using DiscordChatExporter.Core.Exporting.Filtering;
 using DiscordChatExporter.Core.Exporting.Partitioning;
-using DiscordChatExporter.Core.Utils.Extensions;
+using DiscordChatExporter.Core.Utils;
+using Gress;
 
-namespace DiscordChatExporter.Cli.Commands.Base
+namespace DiscordChatExporter.Cli.Commands.Base;
+
+public abstract class ExportCommandBase : TokenCommandBase
 {
-    public abstract class ExportCommandBase : TokenCommandBase
-    {
-        [CommandOption("output", 'o', Description = "Output file or directory path.")]
-        public string OutputPath { get; init; } = Directory.GetCurrentDirectory();
+    private readonly string _outputPath = Directory.GetCurrentDirectory();
 
-        [CommandOption("format", 'f', Description = "Export format.")]
+    [CommandOption(
+        "output",
+        'o',
+        Description = "Output file or directory path."
+    )]
+    public string OutputPath
+    {
+        get => _outputPath;
+        // Handle ~/ in paths on *nix systems
+        // https://github.com/Tyrrrz/DiscordChatExporter/pull/903
+        init => _outputPath = Path.GetFullPath(value);
+    }
+
+    [CommandOption(
+        "format",
+        'f',
+        Description = "Export format."
+    )]
     public ExportFormat ExportFormat { get; init; } = ExportFormat.HtmlDark;
 
-        [CommandOption("after", Description = "Only include messages sent after this date or message ID.")]
+    [CommandOption(
+        "after",
+        Description = "Only include messages sent after this date or message ID."
+    )]
     public Snowflake? After { get; init; }
 
-        [CommandOption("before", Description = "Only include messages sent before this date or message ID.")]
+    [CommandOption(
+        "before",
+        Description = "Only include messages sent before this date or message ID."
+    )]
     public Snowflake? Before { get; init; }
 
-        [CommandOption("partition", 'p', Description = "Split output into partitions, each limited to this number of messages (e.g. '100') or file size (e.g. '10mb').")]
+    [CommandOption(
+        "partition",
+        'p',
+        Description = "Split output into partitions, each limited to this number of messages (e.g. '100') or file size (e.g. '10mb')."
+    )]
     public PartitionLimit PartitionLimit { get; init; } = PartitionLimit.Null;
 
-        [CommandOption("filter", Description = "Only include messages that satisfy this filter (e.g. 'from:foo#1234' or 'has:image').")]
+    [CommandOption(
+        "filter",
+        Description = "Only include messages that satisfy this filter (e.g. 'from:foo#1234' or 'has:image')."
+    )]
     public MessageFilter MessageFilter { get; init; } = MessageFilter.Null;
 
-        [CommandOption("parallel", Description = "Limits how many channels can be exported in parallel.")]
+    [CommandOption(
+        "parallel",
+        Description = "Limits how many channels can be exported in parallel."
+    )]
     public int ParallelLimit { get; init; } = 1;
 
-        [CommandOption("media", Description = "Download referenced media content.")]
+    [CommandOption(
+        "media",
+        Description = "Download referenced media content."
+    )]
     public bool ShouldDownloadMedia { get; init; }
 
-        [CommandOption("reuse-media", Description = "Reuse already existing media content to skip redundant downloads.")]
+    [CommandOption(
+        "reuse-media",
+        Description = "Reuse already existing media content to skip redundant downloads."
+    )]
     public bool ShouldReuseMedia { get; init; }
 
-        [CommandOption("dateformat", Description = "Format used when writing dates.")]
+    [CommandOption(
+        "dateformat",
+        Description = "Format used when writing dates."
+    )]
     public string DateFormat { get; init; } = "dd-MMM-yy hh:mm tt";
 
     private ChannelExporter? _channelExporter;
@@ -57,9 +99,20 @@ namespace DiscordChatExporter.Cli.Commands.Base
     {
         var cancellationToken = console.RegisterCancellationHandler();
 
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/425
         if (ShouldReuseMedia && !ShouldDownloadMedia)
         {
-                throw new CommandException("Option --reuse-media cannot be used without --media.");
+            throw new CommandException(
+                "Option --reuse-media cannot be used without --media."
+            );
+        }
+
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/799
+        if (channels.Count > 1 && !PathEx.IsDirectoryPath(OutputPath) && !OutputPath.Contains('%'))
+        {
+            throw new CommandException(
+                "Attempted to export multiple channels, but the output path is neither a directory nor a template."
+            );
         }
 
         var errors = new ConcurrentDictionary<Channel, string>();
@@ -68,13 +121,21 @@ namespace DiscordChatExporter.Cli.Commands.Base
         await console.Output.WriteLineAsync($"Exporting {channels.Count} channel(s)...");
         await console.CreateProgressTicker().StartAsync(async progressContext =>
         {
-                await channels.ParallelForEachAsync(async channel =>
+            await Parallel.ForEachAsync(
+                channels,
+                new ParallelOptions
+                {
+                    MaxDegreeOfParallelism = Math.Max(1, ParallelLimit),
+                    CancellationToken = cancellationToken
+                },
+                async (channel, innerCancellationToken) =>
                 {
                     try
                     {
-                        await progressContext.StartTaskAsync($"{channel.Category.Name} / {channel.Name}", async progress =>
+                        await progressContext.StartTaskAsync($"{channel.Category.Name} / {channel.Name}",
+                            async progress =>
                             {
-                            var guild = await Discord.GetGuildAsync(channel.GuildId, cancellationToken);
+                                var guild = await Discord.GetGuildAsync(channel.GuildId, innerCancellationToken);
 
                                 var request = new ExportRequest(
                                     guild,
@@ -90,14 +151,20 @@ namespace DiscordChatExporter.Cli.Commands.Base
                                     DateFormat
                                 );
 
-                            await Exporter.ExportChannelAsync(request, progress, cancellationToken);
-                        });
+                                await Exporter.ExportChannelAsync(
+                                    request,
+                                    progress.ToPercentageBased(),
+                                    innerCancellationToken
+                                );
+                            }
+                        );
                     }
                     catch (DiscordChatExporterException ex) when (!ex.IsFatal)
                     {
                         errors[channel] = ex.Message;
                     }
-                }, Math.Max(ParallelLimit, 1), cancellationToken);
+                }
+            );
         });
 
         // Print result
@@ -152,5 +219,16 @@ namespace DiscordChatExporter.Cli.Commands.Base
 
         await ExecuteAsync(console, channels);
     }
+
+    public override ValueTask ExecuteAsync(IConsole console)
+    {
+        // War in Ukraine message
+        console.Output.WriteLine("========================================================================");
+        console.Output.WriteLine("||   Ukraine is at war! Support my country in its fight for freedom~  ||");
+        console.Output.WriteLine("||   Learn more on my website: https://tyrrrz.me                      ||");
+        console.Output.WriteLine("========================================================================");
+        console.Output.WriteLine("");
+
+        return default;
     }
 }

DiscordChatExporter.Cli/Commands/Base/TokenCommandBase.cs

@@ -1,30 +1,34 @@
-using System.Threading.Tasks;
+using System;
+using System.Threading.Tasks;
 using CliFx;
 using CliFx.Attributes;
 using CliFx.Infrastructure;
 using DiscordChatExporter.Core.Discord;
 
-namespace DiscordChatExporter.Cli.Commands.Base
-{
-    public abstract class TokenCommandBase : ICommand
-    {
-        [CommandOption("token", 't', IsRequired = true, EnvironmentVariable = "DISCORD_TOKEN", Description = "Authentication token.")]
-        public string TokenValue { get; init; } = "";
+namespace DiscordChatExporter.Cli.Commands.Base;
 
-        [CommandOption("bot", 'b', EnvironmentVariable = "DISCORD_TOKEN_BOT", Description = "Authenticate as a bot.")]
+public abstract class TokenCommandBase : ICommand
+{
+    [CommandOption(
+        "token",
+        't',
+        IsRequired = true,
+        EnvironmentVariable = "DISCORD_TOKEN",
+        Description = "Authentication token."
+    )]
+    public string Token { get; init; } = "";
+
+    [Obsolete("This option doesn't do anything. Kept for backwards compatibility.")]
+    [CommandOption(
+        "bot",
+        'b',
+        EnvironmentVariable = "DISCORD_TOKEN_BOT",
+        Description = "This option doesn't do anything. Kept for backwards compatibility."
+    )]
     public bool IsBotToken { get; init; }
 
-        private AuthToken? _authToken;
-        private AuthToken AuthToken => _authToken ??= new AuthToken(
-            IsBotToken
-                ? AuthTokenKind.Bot
-                : AuthTokenKind.User,
-            TokenValue
-        );
-
     private DiscordClient? _discordClient;
-        protected DiscordClient Discord => _discordClient ??= new DiscordClient(AuthToken);
+    protected DiscordClient Discord => _discordClient ??= new DiscordClient(Token);
 
     public abstract ValueTask ExecuteAsync(IConsole console);
-    }
 }

DiscordChatExporter.Cli/Commands/ExportAllCommand.cs

@@ -5,16 +5,21 @@ using CliFx.Infrastructure;
 using DiscordChatExporter.Cli.Commands.Base;
 using DiscordChatExporter.Core.Discord.Data;
 
-namespace DiscordChatExporter.Cli.Commands
+namespace DiscordChatExporter.Cli.Commands;
+
+[Command("exportall", Description = "Export all accessible channels.")]
+public class ExportAllCommand : ExportCommandBase
 {
-    [Command("exportall", Description = "Export all accessible channels.")]
-    public class ExportAllCommand : ExportCommandBase
-    {
-        [CommandOption("include-dm", Description = "Include direct message channels.")]
+    [CommandOption(
+        "include-dm",
+        Description = "Include direct message channels."
+    )]
     public bool IncludeDirectMessages { get; init; } = true;
 
     public override async ValueTask ExecuteAsync(IConsole console)
     {
+        await base.ExecuteAsync(console);
+
         var cancellationToken = console.RegisterCancellationHandler();
         var channels = new List<Channel>();
 
@@ -26,16 +31,9 @@ namespace DiscordChatExporter.Cli.Commands
                 continue;
 
             await foreach (var channel in Discord.GetGuildChannelsAsync(guild.Id, cancellationToken))
-                {
-                    // Skip non-text channels
-                    if (!channel.IsTextChannel)
-                        continue;
-
                 channels.Add(channel);
         }
-            }
 
         await base.ExecuteAsync(console, channels);
     }
-    }
 }

DiscordChatExporter.Cli/Commands/ExportChannelsCommand.cs

@@ -6,16 +6,23 @@ using CliFx.Infrastructure;
 using DiscordChatExporter.Cli.Commands.Base;
 using DiscordChatExporter.Core.Discord;
 
-namespace DiscordChatExporter.Cli.Commands
+namespace DiscordChatExporter.Cli.Commands;
+
+[Command("export", Description = "Export one or multiple channels.")]
+public class ExportChannelsCommand : ExportCommandBase
 {
-    [Command("export", Description = "Export one or multiple channels.")]
-    public class ExportChannelsCommand : ExportCommandBase
-    {
     // TODO: change this to plural (breaking change)
-        [CommandOption("channel", 'c', IsRequired = true, Description = "Channel ID(s).")]
+    [CommandOption(
+        "channel",
+        'c',
+        IsRequired = true,
+        Description = "Channel ID(s)."
+    )]
     public IReadOnlyList<Snowflake> ChannelIds { get; init; } = Array.Empty<Snowflake>();
 
-        public override async ValueTask ExecuteAsync(IConsole console) =>
+    public override async ValueTask ExecuteAsync(IConsole console)
+    {
+        await base.ExecuteAsync(console);
         await base.ExecuteAsync(console, ChannelIds);
     }
 }

DiscordChatExporter.Cli/Commands/ExportDirectMessagesCommand.cs

@@ -6,20 +6,23 @@ using DiscordChatExporter.Cli.Commands.Base;
 using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Utils.Extensions;
 
-namespace DiscordChatExporter.Cli.Commands
+namespace DiscordChatExporter.Cli.Commands;
+
+[Command("exportdm", Description = "Export all direct message channels.")]
+public class ExportDirectMessagesCommand : ExportCommandBase
 {
-    [Command("exportdm", Description = "Export all direct message channels.")]
-    public class ExportDirectMessagesCommand : ExportCommandBase
-    {
     public override async ValueTask ExecuteAsync(IConsole console)
     {
+        await base.ExecuteAsync(console);
+
         var cancellationToken = console.RegisterCancellationHandler();
 
         await console.Output.WriteLineAsync("Fetching channels...");
-            var channels = await Discord.GetGuildChannelsAsync(Guild.DirectMessages.Id, cancellationToken);
-            var textChannels = channels.Where(c => c.IsTextChannel).ToArray();
 
-            await base.ExecuteAsync(console, textChannels);
-        }
+        var channels = (await Discord.GetGuildChannelsAsync(Guild.DirectMessages.Id, cancellationToken))
+            .Where(c => c.Kind != ChannelKind.GuildCategory)
+            .ToArray();
+
+        await base.ExecuteAsync(console, channels);
     }
 }

DiscordChatExporter.Cli/Commands/ExportGuildCommand.cs

@@ -4,25 +4,34 @@ using CliFx.Attributes;
 using CliFx.Infrastructure;
 using DiscordChatExporter.Cli.Commands.Base;
 using DiscordChatExporter.Core.Discord;
+using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Utils.Extensions;
 
-namespace DiscordChatExporter.Cli.Commands
+namespace DiscordChatExporter.Cli.Commands;
+
+[Command("exportguild", Description = "Export all channels within specified guild.")]
+public class ExportGuildCommand : ExportCommandBase
 {
-    [Command("exportguild", Description = "Export all channels within specified guild.")]
-    public class ExportGuildCommand : ExportCommandBase
-    {
-        [CommandOption("guild", 'g', IsRequired = true, Description = "Guild ID.")]
+    [CommandOption(
+        "guild",
+        'g',
+        IsRequired = true,
+        Description = "Guild ID."
+    )]
     public Snowflake GuildId { get; init; }
 
     public override async ValueTask ExecuteAsync(IConsole console)
     {
+        await base.ExecuteAsync(console);
+
         var cancellationToken = console.RegisterCancellationHandler();
 
         await console.Output.WriteLineAsync("Fetching channels...");
-            var channels = await Discord.GetGuildChannelsAsync(GuildId, cancellationToken);
-            var textChannels = channels.Where(c => c.IsTextChannel).ToArray();
 
-            await base.ExecuteAsync(console, textChannels);
-        }
+        var channels = (await Discord.GetGuildChannelsAsync(GuildId, cancellationToken))
+            .Where(c => c.Kind != ChannelKind.GuildCategory)
+            .ToArray();
+
+        await base.ExecuteAsync(console, channels);
     }
 }

DiscordChatExporter.Cli/Commands/GetChannelsCommand.cs

@@ -5,32 +5,38 @@ using CliFx.Attributes;
 using CliFx.Infrastructure;
 using DiscordChatExporter.Cli.Commands.Base;
 using DiscordChatExporter.Core.Discord;
+using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Utils.Extensions;
 
-namespace DiscordChatExporter.Cli.Commands
+namespace DiscordChatExporter.Cli.Commands;
+
+[Command("channels", Description = "Get the list of channels in a guild.")]
+public class GetChannelsCommand : TokenCommandBase
 {
-    [Command("channels", Description = "Get the list of channels in a guild.")]
-    public class GetChannelsCommand : TokenCommandBase
-    {
-        [CommandOption("guild", 'g', IsRequired = true, Description = "Guild ID.")]
+    [CommandOption(
+        "guild",
+        'g',
+        IsRequired = true,
+        Description = "Guild ID."
+    )]
     public Snowflake GuildId { get; init; }
 
     public override async ValueTask ExecuteAsync(IConsole console)
     {
         var cancellationToken = console.RegisterCancellationHandler();
 
-            var channels = await Discord.GetGuildChannelsAsync(GuildId, cancellationToken);
-
-            var textChannels = channels
-                .Where(c => c.IsTextChannel)
+        var channels = (await Discord.GetGuildChannelsAsync(GuildId, cancellationToken))
+            .Where(c => c.Kind != ChannelKind.GuildCategory)
             .OrderBy(c => c.Category.Position)
             .ThenBy(c => c.Name)
             .ToArray();
 
-            foreach (var channel in textChannels)
+        foreach (var channel in channels)
         {
             // Channel ID
-                await console.Output.WriteAsync(channel.Id.ToString());
+            await console.Output.WriteAsync(
+                channel.Id.ToString().PadRight(18, ' ')
+            );
 
             // Separator
             using (console.WithForegroundColor(ConsoleColor.DarkGray))
@@ -41,5 +47,4 @@ namespace DiscordChatExporter.Cli.Commands
                 await console.Output.WriteLineAsync($"{channel.Category.Name} / {channel.Name}");
         }
     }
-    }
 }

DiscordChatExporter.Cli/Commands/GetDirectMessageChannelsCommand.cs

@@ -7,27 +7,27 @@ using DiscordChatExporter.Cli.Commands.Base;
 using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Utils.Extensions;
 
-namespace DiscordChatExporter.Cli.Commands
+namespace DiscordChatExporter.Cli.Commands;
+
+[Command("dm", Description = "Get the list of direct message channels.")]
+public class GetDirectMessageChannelsCommand : TokenCommandBase
 {
-    [Command("dm", Description = "Get the list of direct message channels.")]
-    public class GetDirectMessageChannelsCommand : TokenCommandBase
-    {
     public override async ValueTask ExecuteAsync(IConsole console)
     {
         var cancellationToken = console.RegisterCancellationHandler();
 
-            var channels = await Discord.GetGuildChannelsAsync(Guild.DirectMessages.Id, cancellationToken);
-
-            var textChannels = channels
-                .Where(c => c.IsTextChannel)
-                .OrderBy(c => c.Category.Position)
+        var channels = (await Discord.GetGuildChannelsAsync(Guild.DirectMessages.Id, cancellationToken))
+            .Where(c => c.Kind != ChannelKind.GuildCategory)
+            .OrderByDescending(c => c.LastMessageId)
             .ThenBy(c => c.Name)
             .ToArray();
 
-            foreach (var channel in textChannels)
+        foreach (var channel in channels)
         {
             // Channel ID
-                await console.Output.WriteAsync(channel.Id.ToString());
+            await console.Output.WriteAsync(
+                channel.Id.ToString().PadRight(18, ' ')
+            );
 
             // Separator
             using (console.WithForegroundColor(ConsoleColor.DarkGray))
@@ -38,5 +38,4 @@ namespace DiscordChatExporter.Cli.Commands
                 await console.Output.WriteLineAsync($"{channel.Category.Name} / {channel.Name}");
         }
     }
-    }
 }

DiscordChatExporter.Cli/Commands/GetGuildsCommand.cs

@@ -4,23 +4,29 @@ using System.Threading.Tasks;
 using CliFx.Attributes;
 using CliFx.Infrastructure;
 using DiscordChatExporter.Cli.Commands.Base;
+using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Utils.Extensions;
 
-namespace DiscordChatExporter.Cli.Commands
+namespace DiscordChatExporter.Cli.Commands;
+
+[Command("guilds", Description = "Get the list of accessible guilds.")]
+public class GetGuildsCommand : TokenCommandBase
 {
-    [Command("guilds", Description = "Get the list of accessible guilds.")]
-    public class GetGuildsCommand : TokenCommandBase
-    {
     public override async ValueTask ExecuteAsync(IConsole console)
     {
         var cancellationToken = console.RegisterCancellationHandler();
 
-            var guilds = await Discord.GetUserGuildsAsync(cancellationToken);
+        var guilds = (await Discord.GetUserGuildsAsync(cancellationToken))
+            // Show direct messages first
+            .OrderByDescending(g => g.Id == Guild.DirectMessages.Id)
+            .ThenBy(g => g.Name);
 
-            foreach (var guild in guilds.OrderBy(g => g.Name))
+        foreach (var guild in guilds)
         {
             // Guild ID
-                await console.Output.WriteAsync(guild.Id.ToString());
+            await console.Output.WriteAsync(
+                guild.Id.ToString().PadRight(18, ' ')
+            );
 
             // Separator
             using (console.WithForegroundColor(ConsoleColor.DarkGray))
@@ -31,5 +37,4 @@ namespace DiscordChatExporter.Cli.Commands
                 await console.Output.WriteLineAsync(guild.Name);
         }
     }
-    }
 }

DiscordChatExporter.Cli/Commands/GuideCommand.cs

@@ -4,26 +4,26 @@ using CliFx;
 using CliFx.Attributes;
 using CliFx.Infrastructure;
 
-namespace DiscordChatExporter.Cli.Commands
+namespace DiscordChatExporter.Cli.Commands;
+
+[Command("guide", Description = "Explains how to obtain token, guild or channel ID.")]
+public class GuideCommand : ICommand
 {
-    [Command("guide", Description = "Explains how to obtain token, guild or channel ID.")]
-    public class GuideCommand : ICommand
-    {
     public ValueTask ExecuteAsync(IConsole console)
     {
         // User token
         using (console.WithForegroundColor(ConsoleColor.White))
             console.Output.WriteLine("To get user token:");
 
-            console.Output.WriteLine(" 1. Open Discord");
+        console.Output.WriteLine(" *  Automating user accounts is technically against TOS — USE AT YOUR OWN RISK!");
+        console.Output.WriteLine(" 1. Open Discord in your web browser and login");
         console.Output.WriteLine(" 2. Press Ctrl+Shift+I to show developer tools");
-            console.Output.WriteLine(" 3. Press Ctrl+Shift+M to toggle device toolbar");
-            console.Output.WriteLine(" 4. Navigate to the Application tab");
-            console.Output.WriteLine(" 5. On the left, expand Local Storage and select https://discord.com");
-            console.Output.WriteLine(" 6. Type \"token\" into the Filter box");
-            console.Output.WriteLine(" 7. If the token key does not appear, press Ctrl+R to reload");
-            console.Output.WriteLine(" 8. Copy the value of the token key");
-            console.Output.WriteLine(" *  Automating user accounts is technically against TOS, use at your own risk.");
+        console.Output.WriteLine(" 3. Navigate to the Network tab");
+        console.Output.WriteLine(" 4. Press Ctrl+R to reload");
+        console.Output.WriteLine(" 5. Search for a request containing \"messages?limit=50\" or similar");
+        console.Output.WriteLine(" 6. Select the Headers tab on the right");
+        console.Output.WriteLine(" 7. Scroll down to the Request Headers section");
+        console.Output.WriteLine(" 8. Copy the value of the \"authorization\" header");
         console.Output.WriteLine();
 
         // Bot token
@@ -42,7 +42,7 @@ namespace DiscordChatExporter.Cli.Commands
 
         console.Output.WriteLine(" 1. Open Discord");
         console.Output.WriteLine(" 2. Open Settings");
-            console.Output.WriteLine(" 3. Go to Appearance section");
+        console.Output.WriteLine(" 3. Go to Advanced section");
         console.Output.WriteLine(" 4. Enable Developer Mode");
         console.Output.WriteLine(" 5. Right click on the desired guild or channel and click Copy ID");
         console.Output.WriteLine();
@@ -61,11 +61,10 @@ namespace DiscordChatExporter.Cli.Commands
 
         // Wiki link
         using (console.WithForegroundColor(ConsoleColor.White))
-                console.Output.WriteLine("For more information, check out the wiki:");
+            console.Output.WriteLine("If you have questions or issues, please refer to the wiki:");
         using (console.WithForegroundColor(ConsoleColor.DarkCyan))
             console.Output.WriteLine("https://github.com/Tyrrrz/DiscordChatExporter/wiki");
 
         return default;
     }
-    }
 }

DiscordChatExporter.Cli/DiscordChatExporter.Cli.csproj

@@ -6,9 +6,10 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="CliFx" Version="2.0.6" />
-    <PackageReference Include="Spectre.Console" Version="0.43.0" />
-    <PackageReference Include="Gress" Version="1.2.0" />
+    <PackageReference Include="CliFx" Version="2.3.0" />
+    <PackageReference Include="Spectre.Console" Version="0.44.0" />
+    <PackageReference Include="Gress" Version="2.0.1" />
+    <PackageReference Include="DotnetRuntimeBootstrapper" Version="2.3.1" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>

DiscordChatExporter.Cli/Program.cs

@@ -1,14 +1,6 @@
-using System.Threading.Tasks;
-using CliFx;
+using CliFx;
 
-namespace DiscordChatExporter.Cli
-{
-    public static class Program
-    {
-        public static async Task<int> Main(string[] args) =>
-            await new CliApplicationBuilder()
+return await new CliApplicationBuilder()
     .AddCommandsFromThisAssembly()
     .Build()
     .RunAsync(args);
-    }
-}

DiscordChatExporter.Cli/Utils/Extensions/ConsoleExtensions.cs

@@ -3,10 +3,10 @@ using System.Threading.Tasks;
 using CliFx.Infrastructure;
 using Spectre.Console;
 
-namespace DiscordChatExporter.Cli.Utils.Extensions
+namespace DiscordChatExporter.Cli.Utils.Extensions;
+
+internal static class ConsoleExtensions
 {
-    internal static class ConsoleExtensions
-    {
     public static IAnsiConsole CreateAnsiConsole(this IConsole console) =>
         AnsiConsole.Create(new AnsiConsoleSettings
         {
@@ -47,5 +47,4 @@ namespace DiscordChatExporter.Cli.Utils.Extensions
             progressTask.StopTask();
         }
     }
-    }
 }

DiscordChatExporter.Core/Discord/AuthToken.cs

@@ -1,13 +0,0 @@
-using System.Net.Http.Headers;
-
-namespace DiscordChatExporter.Core.Discord
-{
-    public record AuthToken(AuthTokenKind Kind, string Value)
-    {
-        public AuthenticationHeaderValue GetAuthenticationHeader() => Kind switch
-        {
-            AuthTokenKind.Bot => new AuthenticationHeaderValue("Bot", Value),
-            _ => new AuthenticationHeaderValue(Value)
-        };
-    }
-}

DiscordChatExporter.Core/Discord/AuthTokenKind.cs

@@ -1,8 +0,0 @@
-namespace DiscordChatExporter.Core.Discord
-{
-    public enum AuthTokenKind
-    {
-        User,
-        Bot
-    }
-}

DiscordChatExporter.Core/Discord/Data/Attachment.cs

@@ -6,17 +6,18 @@ using DiscordChatExporter.Core.Utils;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
-{
-    // https://discord.com/developers/docs/resources/channel#attachment-object
-    public partial record Attachment(
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/channel#attachment-object
+public partial record Attachment(
     Snowflake Id,
     string Url,
     string FileName,
+    string? Description,
     int? Width,
     int? Height,
     FileSize FileSize) : IHasId
-    {
+{
     public string FileExtension => Path.GetExtension(FileName);
 
     public bool IsImage => FileFormat.IsImage(FileExtension);
@@ -26,20 +27,20 @@ namespace DiscordChatExporter.Core.Discord.Data
     public bool IsAudio => FileFormat.IsAudio(FileExtension);
 
     public bool IsSpoiler => FileName.StartsWith("SPOILER_", StringComparison.Ordinal);
-    }
+}
 
-    public partial record Attachment
-    {
+public partial record Attachment
+{
     public static Attachment Parse(JsonElement json)
     {
         var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
         var url = json.GetProperty("url").GetNonWhiteSpaceString();
-            var width = json.GetPropertyOrNull("width")?.GetInt32();
-            var height = json.GetPropertyOrNull("height")?.GetInt32();
-            var fileName = json.GetProperty("filename").GetNonWhiteSpaceString();
+        var fileName = json.GetProperty("filename").GetNonNullString();
+        var description = json.GetPropertyOrNull("description")?.GetNonWhiteSpaceStringOrNull();
+        var width = json.GetPropertyOrNull("width")?.GetInt32OrNull();
+        var height = json.GetPropertyOrNull("height")?.GetInt32OrNull();
         var fileSize = json.GetProperty("size").GetInt64().Pipe(FileSize.FromBytes);
 
-            return new Attachment(id, url, fileName, width, height, fileSize);
-        }
+        return new Attachment(id, url, fileName, description, width, height, fileSize);
     }
 }

DiscordChatExporter.Core/Discord/Data/Channel.cs

@@ -4,30 +4,24 @@ using DiscordChatExporter.Core.Discord.Data.Common;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
-{
-    // https://discord.com/developers/docs/resources/channel#channel-object
-    public partial record Channel(
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/channel#channel-object
+public partial record Channel(
     Snowflake Id,
     ChannelKind Kind,
     Snowflake GuildId,
     ChannelCategory Category,
     string Name,
     int? Position,
-        string? Topic) : IHasId
-    {
-        public bool IsTextChannel => Kind is
-            ChannelKind.GuildTextChat or
-            ChannelKind.DirectTextChat or
-            ChannelKind.DirectGroupTextChat or
-            ChannelKind.GuildNews or
-            ChannelKind.GuildStore;
+    string? Topic,
+    Snowflake? LastMessageId) : IHasId
+{
+    public bool SupportsVoice => Kind is ChannelKind.GuildVoiceChat or ChannelKind.GuildStageVoice;
+}
 
-        public bool IsVoiceChannel => !IsTextChannel;
-    }
-
-    public partial record Channel
-    {
+public partial record Channel
+{
     private static ChannelCategory GetFallbackCategory(ChannelKind channelKind) => new(
         Snowflake.Zero,
         channelKind switch
@@ -36,37 +30,51 @@ namespace DiscordChatExporter.Core.Discord.Data
             ChannelKind.DirectTextChat => "Private",
             ChannelKind.DirectGroupTextChat => "Group",
             ChannelKind.GuildNews => "News",
-                ChannelKind.GuildStore => "Store",
             _ => "Default"
         },
         null
     );
 
-        public static Channel Parse(JsonElement json, ChannelCategory? category = null, int? position = null)
+    public static Channel Parse(JsonElement json, ChannelCategory? category = null, int? positionHint = null)
     {
         var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
-            var guildId = json.GetPropertyOrNull("guild_id")?.GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
-            var topic = json.GetPropertyOrNull("topic")?.GetStringOrNull();
         var kind = (ChannelKind)json.GetProperty("type").GetInt32();
+        var guildId = json.GetPropertyOrNull("guild_id")?.GetNonWhiteSpaceStringOrNull()?.Pipe(Snowflake.Parse);
 
         var name =
             // Guild channel
-                json.GetPropertyOrNull("name")?.GetStringOrNull() ??
+            json.GetPropertyOrNull("name")?.GetNonWhiteSpaceStringOrNull() ??
+
             // DM channel
-                json.GetPropertyOrNull("recipients")?.EnumerateArray().Select(User.Parse).Select(u => u.Name)
+            json.GetPropertyOrNull("recipients")?
+                .EnumerateArrayOrNull()?
+                .Select(User.Parse)
+                .Select(u => u.Name)
                 .Pipe(s => string.Join(", ", s)) ??
+
             // Fallback
             id.ToString();
 
+        var position =
+            positionHint ??
+            json.GetPropertyOrNull("position")?.GetInt32OrNull();
+
+        var topic = json.GetPropertyOrNull("topic")?.GetStringOrNull();
+
+        var lastMessageId = json
+            .GetPropertyOrNull("last_message_id")?
+            .GetNonWhiteSpaceStringOrNull()?
+            .Pipe(Snowflake.Parse);
+
         return new Channel(
             id,
             kind,
             guildId ?? Guild.DirectMessages.Id,
             category ?? GetFallbackCategory(kind),
             name,
-                position ?? json.GetPropertyOrNull("position")?.GetInt32(),
-                topic
+            position,
+            topic,
+            lastMessageId
         );
     }
-    }
 }

DiscordChatExporter.Core/Discord/Data/ChannelCategory.cs

@@ -3,25 +3,24 @@ using DiscordChatExporter.Core.Discord.Data.Common;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
+namespace DiscordChatExporter.Core.Discord.Data;
+
+public record ChannelCategory(Snowflake Id, string Name, int? Position) : IHasId
 {
-    public record ChannelCategory(Snowflake Id, string Name, int? Position) : IHasId
-    {
     public static ChannelCategory Unknown { get; } = new(Snowflake.Zero, "<unknown category>", 0);
 
-        public static ChannelCategory Parse(JsonElement json, int? position = null)
+    public static ChannelCategory Parse(JsonElement json, int? positionHint = null)
     {
         var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
 
         var name =
-                json.GetPropertyOrNull("name")?.GetStringOrNull() ??
+            json.GetPropertyOrNull("name")?.GetNonWhiteSpaceStringOrNull() ??
             id.ToString();
 
-            return new ChannelCategory(
-                id,
-                name,
-                position ?? json.GetPropertyOrNull("position")?.GetInt32()
-            );
-        }
+        var position =
+            positionHint ??
+            json.GetPropertyOrNull("position")?.GetInt32OrNull();
+
+        return new ChannelCategory(id, name, position);
     }
 }

DiscordChatExporter.Core/Discord/Data/ChannelKind.cs

@@ -1,15 +1,19 @@
-namespace DiscordChatExporter.Core.Discord.Data
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/channel#channel-object-channel-types
+// Order of enum fields needs to match the order in the docs.
+public enum ChannelKind
 {
-    // https://discord.com/developers/docs/resources/channel#channel-object-channel-types
-    // Order of enum fields needs to match the order in the docs.
-    public enum ChannelKind
-    {
     GuildTextChat = 0,
-        DirectTextChat,
-        GuildVoiceChat,
-        DirectGroupTextChat,
-        GuildCategory,
-        GuildNews,
-        GuildStore
-    }
+    DirectTextChat = 1,
+    GuildVoiceChat = 2,
+    DirectGroupTextChat = 3,
+    GuildCategory = 4,
+    GuildNews = 5,
+    GuildNewsThread = 10,
+    GuildPublicThread = 11,
+    GuildPrivateThread = 12,
+    GuildStageVoice = 13,
+    GuildDirectory = 14,
+    GuildForum = 15
 }

DiscordChatExporter.Core/Discord/Data/Common/FileSize.cs

@@ -1,11 +1,11 @@
 using System;
 using System.Diagnostics.CodeAnalysis;
 
-namespace DiscordChatExporter.Core.Discord.Data.Common
+namespace DiscordChatExporter.Core.Discord.Data.Common;
+
+// Loosely based on https://github.com/omar/ByteSize (MIT license)
+public readonly partial record struct FileSize(long TotalBytes)
 {
-    // Loosely based on https://github.com/omar/ByteSize (MIT license)
-    public readonly partial record struct FileSize(long TotalBytes)
-    {
     public double TotalKiloBytes => TotalBytes / 1024.0;
     public double TotalMegaBytes => TotalKiloBytes / 1024.0;
     public double TotalGigaBytes => TotalMegaBytes / 1024.0;
@@ -40,10 +40,9 @@ namespace DiscordChatExporter.Core.Discord.Data.Common
 
     [ExcludeFromCodeCoverage]
     public override string ToString() => $"{GetLargestWholeNumberValue():0.##} {GetLargestWholeNumberSymbol()}";
-    }
-
-    public partial record struct FileSize
-    {
-        public static FileSize FromBytes(long bytes) => new(bytes);
-    }
+}
+
+public partial record struct FileSize
+{
+    public static FileSize FromBytes(long bytes) => new(bytes);
 }

DiscordChatExporter.Core/Discord/Data/Common/IHasId.cs

@@ -1,7 +1,6 @@
-namespace DiscordChatExporter.Core.Discord.Data.Common
+namespace DiscordChatExporter.Core.Discord.Data.Common;
+
+public interface IHasId
 {
-    public interface IHasId
-    {
     Snowflake Id { get; }
-    }
 }

DiscordChatExporter.Core/Discord/Data/Common/IdBasedEqualityComparer.cs

@@ -1,13 +1,12 @@
 using System.Collections.Generic;
 
-namespace DiscordChatExporter.Core.Discord.Data.Common
+namespace DiscordChatExporter.Core.Discord.Data.Common;
+
+public class IdBasedEqualityComparer : IEqualityComparer<IHasId>
 {
-    public class IdBasedEqualityComparer : IEqualityComparer<IHasId>
-    {
     public static IdBasedEqualityComparer Instance { get; } = new();
 
     public bool Equals(IHasId? x, IHasId? y) => x?.Id == y?.Id;
 
     public int GetHashCode(IHasId obj) => obj.Id.GetHashCode();
-    }
 }

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

@@ -6,10 +6,10 @@ using System.Text.Json;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data.Embeds
-{
-    // https://discord.com/developers/docs/resources/channel#embed-object
-    public partial record Embed(
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
+
+// https://discord.com/developers/docs/resources/channel#embed-object
+public partial record Embed(
     string? Title,
     string? Url,
     DateTimeOffset? Timestamp,
@@ -18,9 +18,9 @@ namespace DiscordChatExporter.Core.Discord.Data.Embeds
     string? Description,
     IReadOnlyList<EmbedField> Fields,
     EmbedImage? Thumbnail,
-        EmbedImage? Image,
+    IReadOnlyList<EmbedImage> Images,
     EmbedFooter? Footer)
-    {
+{
     public PlainImageEmbedProjection? TryGetPlainImage() =>
         PlainImageEmbedProjection.TryResolve(this);
 
@@ -29,27 +29,38 @@ namespace DiscordChatExporter.Core.Discord.Data.Embeds
 
     public YouTubeVideoEmbedProjection? TryGetYouTubeVideo() =>
         YouTubeVideoEmbedProjection.TryResolve(this);
-    }
+}
 
-    public partial record Embed
-    {
+public partial record Embed
+{
     public static Embed Parse(JsonElement json)
     {
         var title = json.GetPropertyOrNull("title")?.GetStringOrNull();
-            var url = json.GetPropertyOrNull("url")?.GetStringOrNull();
+        var url = json.GetPropertyOrNull("url")?.GetNonWhiteSpaceStringOrNull();
         var timestamp = json.GetPropertyOrNull("timestamp")?.GetDateTimeOffset();
-            var color = json.GetPropertyOrNull("color")?.GetInt32().Pipe(System.Drawing.Color.FromArgb).ResetAlpha();
+        var color = json.GetPropertyOrNull("color")?.GetInt32OrNull()?.Pipe(System.Drawing.Color.FromArgb).ResetAlpha();
+        var author = json.GetPropertyOrNull("author")?.Pipe(EmbedAuthor.Parse);
         var description = json.GetPropertyOrNull("description")?.GetStringOrNull();
 
-            var author = json.GetPropertyOrNull("author")?.Pipe(EmbedAuthor.Parse);
-            var thumbnail = json.GetPropertyOrNull("thumbnail")?.Pipe(EmbedImage.Parse);
-            var image = json.GetPropertyOrNull("image")?.Pipe(EmbedImage.Parse);
-            var footer = json.GetPropertyOrNull("footer")?.Pipe(EmbedFooter.Parse);
-
         var fields =
-                json.GetPropertyOrNull("fields")?.EnumerateArray().Select(EmbedField.Parse).ToArray() ??
+            json.GetPropertyOrNull("fields")?.EnumerateArrayOrNull()?.Select(EmbedField.Parse).ToArray() ??
             Array.Empty<EmbedField>();
 
+        var thumbnail = json.GetPropertyOrNull("thumbnail")?.Pipe(EmbedImage.Parse);
+
+        // Under the Discord API model, embeds can only have at most one image.
+        // Because of that, embeds that are rendered with multiple images on the client
+        // (e.g. tweet embeds), are exposed from the API as multiple separate embeds.
+        // Our embed model is consistent with the user-facing side of Discord, so images
+        // are stored as an array. The API will only ever return one image, but we deal
+        // with this by merging related embeds at the end of the message parsing process.
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/695
+        var images =
+            json.GetPropertyOrNull("image")?.Pipe(EmbedImage.Parse).Enumerate().ToArray() ??
+            Array.Empty<EmbedImage>();
+
+        var footer = json.GetPropertyOrNull("footer")?.Pipe(EmbedFooter.Parse);
+
         return new Embed(
             title,
             url,
@@ -59,9 +70,8 @@ namespace DiscordChatExporter.Core.Discord.Data.Embeds
             description,
             fields,
             thumbnail,
-                image,
+            images,
             footer
         );
     }
-    }
 }

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

@@ -1,23 +1,22 @@
 using System.Text.Json;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data.Embeds
-{
-    // https://discord.com/developers/docs/resources/channel#embed-object-embed-author-structure
-    public record EmbedAuthor(
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
+
+// https://discord.com/developers/docs/resources/channel#embed-object-embed-author-structure
+public record EmbedAuthor(
     string? Name,
     string? Url,
     string? IconUrl,
     string? IconProxyUrl)
-    {
+{
     public static EmbedAuthor Parse(JsonElement json)
     {
         var name = json.GetPropertyOrNull("name")?.GetStringOrNull();
-            var url = json.GetPropertyOrNull("url")?.GetStringOrNull();
-            var iconUrl = json.GetPropertyOrNull("icon_url")?.GetStringOrNull();
-            var iconProxyUrl = json.GetPropertyOrNull("proxy_icon_url")?.GetStringOrNull();
+        var url = json.GetPropertyOrNull("url")?.GetNonWhiteSpaceStringOrNull();
+        var iconUrl = json.GetPropertyOrNull("icon_url")?.GetNonWhiteSpaceStringOrNull();
+        var iconProxyUrl = json.GetPropertyOrNull("proxy_icon_url")?.GetNonWhiteSpaceStringOrNull();
 
         return new EmbedAuthor(name, url, iconUrl, iconProxyUrl);
     }
-    }
 }

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

@@ -1,22 +1,20 @@
 using System.Text.Json;
-using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data.Embeds
-{
-    // https://discord.com/developers/docs/resources/channel#embed-object-embed-field-structure
-    public record EmbedField(
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
+
+// https://discord.com/developers/docs/resources/channel#embed-object-embed-field-structure
+public record EmbedField(
     string Name,
     string Value,
     bool IsInline)
-    {
+{
     public static EmbedField Parse(JsonElement json)
     {
-            var name = json.GetProperty("name").GetNonWhiteSpaceString();
-            var value = json.GetProperty("value").GetNonWhiteSpaceString();
-            var isInline = json.GetPropertyOrNull("inline")?.GetBoolean() ?? false;
+        var name = json.GetProperty("name").GetNonNullString();
+        var value = json.GetProperty("value").GetNonNullString();
+        var isInline = json.GetPropertyOrNull("inline")?.GetBooleanOrNull() ?? false;
 
         return new EmbedField(name, value, isInline);
     }
-    }
 }

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

@@ -1,22 +1,20 @@
 using System.Text.Json;
-using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data.Embeds
-{
-    // https://discord.com/developers/docs/resources/channel#embed-object-embed-footer-structure
-    public record EmbedFooter(
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
+
+// https://discord.com/developers/docs/resources/channel#embed-object-embed-footer-structure
+public record EmbedFooter(
     string Text,
     string? IconUrl,
     string? IconProxyUrl)
-    {
+{
     public static EmbedFooter Parse(JsonElement json)
     {
-            var text = json.GetProperty("text").GetNonWhiteSpaceString();
-            var iconUrl = json.GetPropertyOrNull("icon_url")?.GetStringOrNull();
-            var iconProxyUrl = json.GetPropertyOrNull("proxy_icon_url")?.GetStringOrNull();
+        var text = json.GetProperty("text").GetNonNullString();
+        var iconUrl = json.GetPropertyOrNull("icon_url")?.GetNonWhiteSpaceStringOrNull();
+        var iconProxyUrl = json.GetPropertyOrNull("proxy_icon_url")?.GetNonWhiteSpaceStringOrNull();
 
         return new EmbedFooter(text, iconUrl, iconProxyUrl);
     }
-    }
 }

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

@@ -1,23 +1,22 @@
 using System.Text.Json;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data.Embeds
-{
-    // https://discord.com/developers/docs/resources/channel#embed-object-embed-image-structure
-    public record EmbedImage(
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
+
+// https://discord.com/developers/docs/resources/channel#embed-object-embed-image-structure
+public record EmbedImage(
     string? Url,
     string? ProxyUrl,
     int? Width,
     int? Height)
-    {
+{
     public static EmbedImage Parse(JsonElement json)
     {
-            var url = json.GetPropertyOrNull("url")?.GetStringOrNull();
-            var proxyUrl = json.GetPropertyOrNull("proxy_url")?.GetStringOrNull();
-            var width = json.GetPropertyOrNull("width")?.GetInt32();
-            var height = json.GetPropertyOrNull("height")?.GetInt32();
+        var url = json.GetPropertyOrNull("url")?.GetNonWhiteSpaceStringOrNull();
+        var proxyUrl = json.GetPropertyOrNull("proxy_url")?.GetNonWhiteSpaceStringOrNull();
+        var width = json.GetPropertyOrNull("width")?.GetInt32OrNull();
+        var height = json.GetPropertyOrNull("height")?.GetInt32OrNull();
 
         return new EmbedImage(url, proxyUrl, width, height);
     }
-    }
 }

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

@@ -3,10 +3,10 @@ using System.Linq;
 using System.Text.RegularExpressions;
 using DiscordChatExporter.Core.Utils;
 
-namespace DiscordChatExporter.Core.Discord.Data.Embeds
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
+
+public record PlainImageEmbedProjection(string Url)
 {
-    public record PlainImageEmbedProjection(string Url)
-    {
     public static PlainImageEmbedProjection? TryResolve(Embed embed)
     {
         if (string.IsNullOrWhiteSpace(embed.Url))
@@ -30,5 +30,4 @@ namespace DiscordChatExporter.Core.Discord.Data.Embeds
 
         return new PlainImageEmbedProjection(embed.Url);
     }
-    }
 }

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

@@ -1,14 +1,14 @@
 using System.Text.RegularExpressions;
 
-namespace DiscordChatExporter.Core.Discord.Data.Embeds
-{
-    public partial record SpotifyTrackEmbedProjection(string TrackId)
-    {
-        public string Url => $"https://open.spotify.com/embed/track/{TrackId}";
-    }
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
 
-    public partial record SpotifyTrackEmbedProjection
-    {
+public partial record SpotifyTrackEmbedProjection(string TrackId)
+{
+    public string Url => $"https://open.spotify.com/embed/track/{TrackId}";
+}
+
+public partial record SpotifyTrackEmbedProjection
+{
     private static string? TryParseTrackId(string embedUrl)
     {
         // https://open.spotify.com/track/1LHZMWefF9502NPfArRfvP?si=3efac6ce9be04f0a
@@ -30,5 +30,4 @@ namespace DiscordChatExporter.Core.Discord.Data.Embeds
 
         return new SpotifyTrackEmbedProjection(trackId);
     }
-    }
 }

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

@@ -1,16 +1,16 @@
 using System.Text.RegularExpressions;
 
-namespace DiscordChatExporter.Core.Discord.Data.Embeds
-{
-    public partial record YouTubeVideoEmbedProjection(string VideoId)
-    {
-        public string Url => $"https://www.youtube.com/embed/{VideoId}";
-    }
+namespace DiscordChatExporter.Core.Discord.Data.Embeds;
 
-    public partial record YouTubeVideoEmbedProjection
-    {
+public partial record YouTubeVideoEmbedProjection(string VideoId)
+{
+    public string Url => $"https://www.youtube.com/embed/{VideoId}";
+}
+
+public partial record YouTubeVideoEmbedProjection
+{
     // Adapted from YoutubeExplode
-        // https://github.com/Tyrrrz/YoutubeExplode/blob/5be164be20019783913f76fcc98f18c65aebe9f0/YoutubeExplode/Videos/VideoId.cs#L34-L64
+    // https://github.com/Tyrrrz/YoutubeExplode/blob/bc700b631bd105d0be208a88116347034bdca88b/YoutubeExplode/Videos/VideoId.cs#L40-L62
     private static string? TryParseVideoId(string embedUrl)
     {
         // Regular URL
@@ -31,6 +31,12 @@ namespace DiscordChatExporter.Core.Discord.Data.Embeds
         if (!string.IsNullOrWhiteSpace(embedMatch))
             return embedMatch;
 
+        // Shorts URL
+        // https://www.youtube.com/shorts/sKL1vjP0tIo
+        var shortsMatch = Regex.Match(embedUrl, @"youtube\..+?/shorts/(.*?)(?:\?|&|/|$)").Groups[1].Value;
+        if (!string.IsNullOrWhiteSpace(shortsMatch))
+            return shortsMatch;
+
         return null;
     }
 
@@ -45,5 +51,4 @@ namespace DiscordChatExporter.Core.Discord.Data.Embeds
 
         return new YouTubeVideoEmbedProjection(videoId);
     }
-    }
 }

DiscordChatExporter.Core/Discord/Data/Emoji.cs

@@ -1,60 +1,79 @@
-using System.Linq;
+using System;
+using System.Linq;
 using System.Text.Json;
 using DiscordChatExporter.Core.Utils;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
-{
-    // https://discord.com/developers/docs/resources/emoji#emoji-object
-    public partial record Emoji(
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/emoji#emoji-object
+public partial record Emoji(
     // Only present on custom emoji
-        string? Id,
-        // Name of custom emoji (e.g. LUL) or actual representation of standard emoji (e.g. 🙂)
+    Snowflake? Id,
+    // Name of a custom emoji (e.g. LUL) or actual representation of a standard emoji (e.g. 🙂)
     string Name,
     bool IsAnimated,
     string ImageUrl)
-    {
-        // Name of custom emoji (e.g. LUL) or name of standard emoji (e.g. slight_smile)
-        public string Code => !string.IsNullOrWhiteSpace(Id)
+{
+    // Name of a custom emoji (e.g. LUL) or name of a standard emoji (e.g. slight_smile)
+    public string Code => Id is not null
         ? Name
         : EmojiIndex.TryGetCode(Name) ?? Name;
+}
+
+public partial record Emoji
+{
+    private static string GetTwemojiId(string name)
+    {
+        var runes = name.GetRunes().ToArray();
+
+        // Variant selector rune is skipped in Twemoji names, except when the emoji also contains a zero-width joiner.
+        // VS = 0xfe0f; ZWJ = 0x200d.
+        var filteredRunes = runes.Any(r => r.Value == 0x200d)
+            ? runes
+            : runes.Where(r => r.Value != 0xfe0f);
+
+        return string.Join(
+            "-",
+            filteredRunes.Select(r => r.Value.ToString("x"))
+        );
     }
 
-    public partial record Emoji
-    {
-        private static string GetTwemojiName(string name) => string.Join("-",
-            name
-                .GetRunes()
-                // Variant selector rune is skipped in Twemoji names
-                .Where(r => r.Value != 0xfe0f)
-                .Select(r => r.Value.ToString("x"))
-        );
-
-        public static string GetImageUrl(string? id, string name, bool isAnimated)
-        {
-            // Custom emoji
-            if (!string.IsNullOrWhiteSpace(id))
-            {
-                return isAnimated
+    private static string GetImageUrl(Snowflake id, bool isAnimated) => isAnimated
         ? $"https://cdn.discordapp.com/emojis/{id}.gif"
         : $"https://cdn.discordapp.com/emojis/{id}.png";
-            }
+
+    private static string GetImageUrl(string name) =>
+        $"https://twemoji.maxcdn.com/v/latest/svg/{GetTwemojiId(name)}.svg";
+
+    public static string GetImageUrl(Snowflake? id, string? name, bool isAnimated)
+    {
+        // Custom emoji
+        if (id is not null)
+            return GetImageUrl(id.Value, isAnimated);
 
         // Standard emoji
-            var twemojiName = GetTwemojiName(name);
-            return $"https://twemoji.maxcdn.com/2/svg/{twemojiName}.svg";
+        if (!string.IsNullOrWhiteSpace(name))
+            return GetImageUrl(name);
+
+        // Either ID or name should be set
+        throw new ApplicationException("Emoji has neither ID nor name set.");
     }
 
     public static Emoji Parse(JsonElement json)
     {
-            var id = json.GetPropertyOrNull("id")?.GetNonWhiteSpaceString();
-            var name = json.GetProperty("name").GetNonWhiteSpaceString();
-            var isAnimated = json.GetPropertyOrNull("animated")?.GetBoolean() ?? false;
-
+        var id = json.GetPropertyOrNull("id")?.GetNonWhiteSpaceStringOrNull()?.Pipe(Snowflake.Parse);
+        var name = json.GetPropertyOrNull("name")?.GetNonWhiteSpaceStringOrNull();
+        var isAnimated = json.GetPropertyOrNull("animated")?.GetBooleanOrNull() ?? false;
         var imageUrl = GetImageUrl(id, name, isAnimated);
 
-            return new Emoji(id, name, isAnimated, imageUrl);
-        }
+        return new Emoji(
+            id,
+            // Name may be missing if it's an emoji inside a reaction
+            name ?? "<unknown emoji>",
+            isAnimated,
+            imageUrl
+        );
     }
 }

DiscordChatExporter.Core/Discord/Data/Guild.cs

@@ -1,13 +1,14 @@
-using System.Text.Json;
+using System;
+using System.Text.Json;
 using DiscordChatExporter.Core.Discord.Data.Common;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/guild#guild-object
+public record Guild(Snowflake Id, string Name, string IconUrl) : IHasId
 {
-    // https://discord.com/developers/docs/resources/guild#guild-object
-    public record Guild(Snowflake Id, string Name, string IconUrl) : IHasId
-    {
     public static Guild DirectMessages { get; } = new(
         Snowflake.Zero,
         "Direct Messages",
@@ -17,20 +18,25 @@ namespace DiscordChatExporter.Core.Discord.Data
     private static string GetDefaultIconUrl() =>
         "https://cdn.discordapp.com/embed/avatars/0.png";
 
-        private static string GetIconUrl(Snowflake id, string iconHash) =>
-            $"https://cdn.discordapp.com/icons/{id}/{iconHash}.png";
+    private static string GetIconUrl(Snowflake id, string iconHash)
+    {
+        var extension = iconHash.StartsWith("a_", StringComparison.Ordinal)
+            ? "gif"
+            : "png";
+
+        return $"https://cdn.discordapp.com/icons/{id}/{iconHash}.{extension}";
+    }
 
     public static Guild Parse(JsonElement json)
     {
         var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
-            var name = json.GetProperty("name").GetNonWhiteSpaceString();
-            var iconHash = json.GetPropertyOrNull("icon")?.GetStringOrNull();
+        var name = json.GetProperty("name").GetNonNullString();
 
+        var iconHash = json.GetPropertyOrNull("icon")?.GetNonWhiteSpaceStringOrNull();
         var iconUrl = !string.IsNullOrWhiteSpace(iconHash)
             ? GetIconUrl(id, iconHash)
             : GetDefaultIconUrl();
 
         return new Guild(id, name, iconUrl);
     }
-    }
 }

DiscordChatExporter.Core/Discord/Data/Member.cs

@@ -6,19 +6,19 @@ using DiscordChatExporter.Core.Discord.Data.Common;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
-{
-    // https://discord.com/developers/docs/resources/guild#guild-member-object
-    public partial record Member(
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/guild#guild-member-object
+public partial record Member(
     User User,
     string Nick,
     IReadOnlyList<Snowflake> RoleIds) : IHasId
-    {
+{
     public Snowflake Id => User.Id;
-    }
+}
 
-    public partial record Member
-    {
+public partial record Member
+{
     public static Member CreateForUser(User user) => new(
         user,
         user.Name,
@@ -28,7 +28,7 @@ namespace DiscordChatExporter.Core.Discord.Data
     public static Member Parse(JsonElement json)
     {
         var user = json.GetProperty("user").Pipe(User.Parse);
-            var nick = json.GetPropertyOrNull("nick")?.GetStringOrNull();
+        var nick = json.GetPropertyOrNull("nick")?.GetNonWhiteSpaceStringOrNull();
 
         var roleIds = json
             .GetPropertyOrNull("roles")?
@@ -43,5 +43,4 @@ namespace DiscordChatExporter.Core.Discord.Data
             roleIds
         );
     }
-    }
 }

DiscordChatExporter.Core/Discord/Data/Message.cs

@@ -7,10 +7,10 @@ using DiscordChatExporter.Core.Discord.Data.Embeds;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
-{
-    // https://discord.com/developers/docs/resources/channel#message-object
-    public record Message(
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/channel#message-object
+public record Message(
     Snowflake Id,
     MessageKind Kind,
     User Author,
@@ -21,23 +21,82 @@ namespace DiscordChatExporter.Core.Discord.Data
     string Content,
     IReadOnlyList<Attachment> Attachments,
     IReadOnlyList<Embed> Embeds,
+    IReadOnlyList<Sticker> Stickers,
     IReadOnlyList<Reaction> Reactions,
     IReadOnlyList<User> MentionedUsers,
     MessageReference? Reference,
     Message? ReferencedMessage) : IHasId
+{
+    private static IReadOnlyList<Embed> NormalizeEmbeds(IReadOnlyList<Embed> embeds)
     {
+        if (embeds.Count <= 1)
+            return embeds;
+
+        // Discord API doesn't support embeds with multiple images, even though the Discord client does.
+        // To work around this, it seems that the API returns multiple consecutive embeds with different images,
+        // which are then merged together on the client. We need to replicate the same behavior ourselves.
+        // Currently, only known case where this workaround is required is Twitter embeds.
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/695
+
+        var normalizedEmbeds = new List<Embed>();
+
+        for (var i = 0; i < embeds.Count; i++)
+        {
+            var embed = embeds[i];
+
+            if (embed.Url?.Contains("://twitter.com/") == true)
+            {
+                // 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
+                    )
+                    .ToArray();
+
+                if (trailingEmbeds.Any())
+                {
+                    // Concatenate all images into one embed
+                    var images = embed.Images.Concat(trailingEmbeds.SelectMany(e => e.Images)).ToArray();
+                    normalizedEmbeds.Add(embed with { Images = images });
+
+                    i += trailingEmbeds.Length;
+                }
+                else
+                {
+                    normalizedEmbeds.Add(embed);
+                }
+            }
+            else
+            {
+                normalizedEmbeds.Add(embed);
+            }
+        }
+
+        return normalizedEmbeds;
+    }
+
     public static Message Parse(JsonElement json)
     {
         var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
+        var kind = (MessageKind)json.GetProperty("type").GetInt32();
         var author = json.GetProperty("author").Pipe(User.Parse);
+
         var timestamp = json.GetProperty("timestamp").GetDateTimeOffset();
         var editedTimestamp = json.GetPropertyOrNull("edited_timestamp")?.GetDateTimeOffset();
-            var callEndedTimestamp = json.GetPropertyOrNull("call")?.GetPropertyOrNull("ended_timestamp")
-                ?.GetDateTimeOffset();
-            var kind = (MessageKind)json.GetProperty("type").GetInt32();
-            var isPinned = json.GetPropertyOrNull("pinned")?.GetBoolean() ?? false;
-            var messageReference = json.GetPropertyOrNull("message_reference")?.Pipe(MessageReference.Parse);
-            var referencedMessage = json.GetPropertyOrNull("referenced_message")?.Pipe(Parse);
+        var callEndedTimestamp = json
+            .GetPropertyOrNull("call")?
+            .GetPropertyOrNull("ended_timestamp")?
+            .GetDateTimeOffset();
+
+        var isPinned = json.GetPropertyOrNull("pinned")?.GetBooleanOrNull() ?? false;
 
         var content = kind switch
         {
@@ -53,21 +112,29 @@ namespace DiscordChatExporter.Core.Discord.Data
         };
 
         var attachments =
-                json.GetPropertyOrNull("attachments")?.EnumerateArray().Select(Attachment.Parse).ToArray() ??
+            json.GetPropertyOrNull("attachments")?.EnumerateArrayOrNull()?.Select(Attachment.Parse).ToArray() ??
             Array.Empty<Attachment>();
 
-            var embeds =
-                json.GetPropertyOrNull("embeds")?.EnumerateArray().Select(Embed.Parse).ToArray() ??
-                Array.Empty<Embed>();
+        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>();
 
         var reactions =
-                json.GetPropertyOrNull("reactions")?.EnumerateArray().Select(Reaction.Parse).ToArray() ??
+            json.GetPropertyOrNull("reactions")?.EnumerateArrayOrNull()?.Select(Reaction.Parse).ToArray() ??
             Array.Empty<Reaction>();
 
         var mentionedUsers =
-                json.GetPropertyOrNull("mentions")?.EnumerateArray().Select(User.Parse).ToArray() ??
+            json.GetPropertyOrNull("mentions")?.EnumerateArrayOrNull()?.Select(User.Parse).ToArray() ??
             Array.Empty<User>();
 
+        var messageReference = json.GetPropertyOrNull("message_reference")?.Pipe(MessageReference.Parse);
+        var referencedMessage = json.GetPropertyOrNull("referenced_message")?.Pipe(Parse);
+
         return new Message(
             id,
             kind,
@@ -79,11 +146,11 @@ namespace DiscordChatExporter.Core.Discord.Data
             content,
             attachments,
             embeds,
+            stickers,
             reactions,
             mentionedUsers,
             messageReference,
             referencedMessage
         );
     }
-    }
 }

DiscordChatExporter.Core/Discord/Data/MessageKind.cs

@@ -1,8 +1,8 @@
-namespace DiscordChatExporter.Core.Discord.Data
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/channel#message-object-message-types
+public enum MessageKind
 {
-    // https://discord.com/developers/docs/resources/channel#message-object-message-types
-    public enum MessageKind
-    {
     Default = 0,
     RecipientAdd = 1,
     RecipientRemove = 2,
@@ -12,5 +12,4 @@
     ChannelPinnedMessage = 6,
     GuildMemberJoin = 7,
     Reply = 19
-    }
 }

DiscordChatExporter.Core/Discord/Data/MessageReference.cs

@@ -2,18 +2,28 @@ using System.Text.Json;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/channel#message-object-message-reference-structure
+public record MessageReference(Snowflake? MessageId, Snowflake? ChannelId, Snowflake? GuildId)
 {
-    // https://discord.com/developers/docs/resources/channel#message-object-message-reference-structure
-    public record MessageReference(Snowflake? MessageId, Snowflake? ChannelId, Snowflake? GuildId)
-    {
     public static MessageReference Parse(JsonElement json)
     {
-            var messageId = json.GetPropertyOrNull("message_id")?.GetStringOrNull()?.Pipe(Snowflake.Parse);
-            var channelId = json.GetPropertyOrNull("channel_id")?.GetStringOrNull()?.Pipe(Snowflake.Parse);
-            var guildId = json.GetPropertyOrNull("guild_id")?.GetStringOrNull()?.Pipe(Snowflake.Parse);
+        var messageId = json
+            .GetPropertyOrNull("message_id")?
+            .GetNonWhiteSpaceStringOrNull()?
+            .Pipe(Snowflake.Parse);
+
+        var channelId = json
+            .GetPropertyOrNull("channel_id")?
+            .GetNonWhiteSpaceStringOrNull()?
+            .Pipe(Snowflake.Parse);
+
+        var guildId = json
+            .GetPropertyOrNull("guild_id")?
+            .GetNonWhiteSpaceStringOrNull()?
+            .Pipe(Snowflake.Parse);
 
         return new MessageReference(messageId, channelId, guildId);
     }
-    }
 }

DiscordChatExporter.Core/Discord/Data/Reaction.cs

@@ -1,11 +1,11 @@
 using System.Text.Json;
 using DiscordChatExporter.Core.Utils.Extensions;
 
-namespace DiscordChatExporter.Core.Discord.Data
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/channel#reaction-object
+public record Reaction(Emoji Emoji, int Count)
 {
-    // https://discord.com/developers/docs/resources/channel#reaction-object
-    public record Reaction(Emoji Emoji, int Count)
-    {
     public static Reaction Parse(JsonElement json)
     {
         var emoji = json.GetProperty("emoji").Pipe(Emoji.Parse);
@@ -13,5 +13,4 @@ namespace DiscordChatExporter.Core.Discord.Data
 
         return new Reaction(emoji, count);
     }
-    }
 }

DiscordChatExporter.Core/Discord/Data/Role.cs

@@ -4,15 +4,15 @@ using DiscordChatExporter.Core.Discord.Data.Common;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/topics/permissions#role-object
+public record Role(Snowflake Id, string Name, int Position, Color? Color) : IHasId
 {
-    // https://discord.com/developers/docs/topics/permissions#role-object
-    public record Role(Snowflake Id, string Name, int Position, Color? Color) : IHasId
-    {
     public static Role Parse(JsonElement json)
     {
         var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
-            var name = json.GetProperty("name").GetNonWhiteSpaceString();
+        var name = json.GetProperty("name").GetNonNullString();
         var position = json.GetProperty("position").GetInt32();
 
         var color = json
@@ -24,5 +24,4 @@ namespace DiscordChatExporter.Core.Discord.Data
 
         return new Role(id, name, position, color);
     }
-    }
 }

DiscordChatExporter.Core/Discord/Data/Sticker.cs

@@ -0,0 +1,25 @@
+using System.Text.Json;
+using DiscordChatExporter.Core.Utils.Extensions;
+using JsonExtensions.Reading;
+
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/sticker#sticker-resource
+public record Sticker(Snowflake Id, string Name, StickerFormat Format, string SourceUrl)
+{
+    private static string GetSourceUrl(Snowflake id, StickerFormat format)
+    {
+        var extension = format == StickerFormat.Lottie ? "json" : "png";
+        return $"https://discord.com/stickers/{id}.{extension}";
+    }
+
+    public static Sticker Parse(JsonElement json)
+    {
+        var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
+        var name = json.GetProperty("name").GetNonNullString();
+        var format = (StickerFormat)json.GetProperty("format_type").GetInt32();
+        var sourceUrl = GetSourceUrl(id, format);
+
+        return new Sticker(id, name, format, sourceUrl);
+    }
+}

DiscordChatExporter.Core/Discord/Data/StickerFormat.cs

@@ -0,0 +1,8 @@
+namespace DiscordChatExporter.Core.Discord.Data;
+
+public enum StickerFormat
+{
+    Png = 1,
+    PngAnimated = 2,
+    Lottie = 3
+}

DiscordChatExporter.Core/Discord/Data/User.cs

@@ -4,23 +4,23 @@ using DiscordChatExporter.Core.Discord.Data.Common;
 using DiscordChatExporter.Core.Utils.Extensions;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord.Data
-{
-    // https://discord.com/developers/docs/resources/user#user-object
-    public partial record User(
+namespace DiscordChatExporter.Core.Discord.Data;
+
+// https://discord.com/developers/docs/resources/user#user-object
+public partial record User(
     Snowflake Id,
     bool IsBot,
     int Discriminator,
     string Name,
     string AvatarUrl) : IHasId
-    {
+{
     public string DiscriminatorFormatted => $"{Discriminator:0000}";
 
     public string FullName => $"{Name}#{DiscriminatorFormatted}";
-    }
+}
 
-    public partial record User
-    {
+public partial record User
+{
     private static string GetDefaultAvatarUrl(int discriminator) =>
         $"https://cdn.discordapp.com/embed/avatars/{discriminator % 5}.png";
 
@@ -30,22 +30,21 @@ namespace DiscordChatExporter.Core.Discord.Data
             ? "gif"
             : "png";
 
-            return $"https://cdn.discordapp.com/avatars/{id}/{avatarHash}.{extension}?size=128";
+        return $"https://cdn.discordapp.com/avatars/{id}/{avatarHash}.{extension}?size=512";
     }
 
     public static User Parse(JsonElement json)
     {
         var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
-            var isBot = json.GetPropertyOrNull("bot")?.GetBoolean() ?? false;
+        var isBot = json.GetPropertyOrNull("bot")?.GetBooleanOrNull() ?? false;
         var discriminator = json.GetProperty("discriminator").GetNonWhiteSpaceString().Pipe(int.Parse);
-            var name = json.GetProperty("username").GetNonWhiteSpaceString();
-            var avatarHash = json.GetPropertyOrNull("avatar")?.GetStringOrNull();
+        var name = json.GetProperty("username").GetNonNullString();
 
+        var avatarHash = json.GetPropertyOrNull("avatar")?.GetNonWhiteSpaceStringOrNull();
         var avatarUrl = !string.IsNullOrWhiteSpace(avatarHash)
             ? GetAvatarUrl(id, avatarHash)
             : GetDefaultAvatarUrl(discriminator);
 
         return new User(id, isBot, discriminator, name, avatarUrl);
     }
-    }
 }

DiscordChatExporter.Core/Discord/DiscordClient.cs

@@ -11,32 +11,75 @@ using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Exceptions;
 using DiscordChatExporter.Core.Utils;
 using DiscordChatExporter.Core.Utils.Extensions;
+using Gress;
 using JsonExtensions.Http;
 using JsonExtensions.Reading;
 
-namespace DiscordChatExporter.Core.Discord
-{
-    public class DiscordClient
-    {
-        private readonly AuthToken _token;
-        private readonly Uri _baseUri = new("https://discord.com/api/v8/", UriKind.Absolute);
+namespace DiscordChatExporter.Core.Discord;
 
-        public DiscordClient(AuthToken token) => _token = token;
+public class DiscordClient
+{
+    private readonly string _token;
+    private readonly Uri _baseUri = new("https://discord.com/api/v9/", UriKind.Absolute);
+
+    private TokenKind _tokenKind = TokenKind.Unknown;
+
+    public DiscordClient(string token) => _token = token;
+
+    private async ValueTask<HttpResponseMessage> GetResponseAsync(
+        string url,
+        bool isBot,
+        CancellationToken cancellationToken = default)
+    {
+        using var request = new HttpRequestMessage(HttpMethod.Get, new Uri(_baseUri, url));
+
+        // Don't validate because token can have invalid characters
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/828
+        request.Headers.TryAddWithoutValidation(
+            "Authorization",
+            isBot ? $"Bot {_token}" : _token
+        );
+
+        return await Http.Client.SendAsync(
+            request,
+            HttpCompletionOption.ResponseHeadersRead,
+            cancellationToken
+        );
+    }
 
     private async ValueTask<HttpResponseMessage> GetResponseAsync(
         string url,
         CancellationToken cancellationToken = default)
     {
-            return await Http.ResponsePolicy.ExecuteAsync(async innerCancellationToken =>
+        return await Http.ResponseResiliencePolicy.ExecuteAsync(async innerCancellationToken =>
         {
-                using var request = new HttpRequestMessage(HttpMethod.Get, new Uri(_baseUri, url));
-                request.Headers.Authorization = _token.GetAuthenticationHeader();
+            if (_tokenKind == TokenKind.User)
+                return await GetResponseAsync(url, false, innerCancellationToken);
 
-                return await Http.Client.SendAsync(
-                    request,
-                    HttpCompletionOption.ResponseHeadersRead,
-                    innerCancellationToken
-                );
+            if (_tokenKind == TokenKind.Bot)
+                return await GetResponseAsync(url, true, innerCancellationToken);
+
+            // Try to authenticate as user
+            var userResponse = await GetResponseAsync(url, false, innerCancellationToken);
+            if (userResponse.StatusCode != HttpStatusCode.Unauthorized)
+            {
+                _tokenKind = TokenKind.User;
+                return userResponse;
+            }
+
+            userResponse.Dispose();
+
+            // Otherwise, try to authenticate as bot
+            var botResponse = await GetResponseAsync(url, true, innerCancellationToken);
+            if (botResponse.StatusCode != HttpStatusCode.Unauthorized)
+            {
+                _tokenKind = TokenKind.Bot;
+                return botResponse;
+            }
+
+            // The token is probably invalid altogether.
+            // Return the last response anyway, upstream should handle the error.
+            return botResponse;
         }, cancellationToken);
     }
 
@@ -138,11 +181,13 @@ namespace DiscordChatExporter.Core.Discord
                 .Select((j, index) => ChannelCategory.Parse(j, index + 1))
                 .ToDictionary(j => j.Id.ToString(), StringComparer.Ordinal);
 
+            // Discord positions are not deterministic, so we need to normalize them
+            // because the user may refer to the channel position via file name template.
             var position = 0;
 
             foreach (var channelJson in responseOrdered)
             {
-                    var parentId = channelJson.GetPropertyOrNull("parent_id")?.GetStringOrNull();
+                var parentId = channelJson.GetPropertyOrNull("parent_id")?.GetNonWhiteSpaceStringOrNull();
 
                 var category = !string.IsNullOrWhiteSpace(parentId)
                     ? categories.GetValueOrDefault(parentId)
@@ -205,7 +250,7 @@ namespace DiscordChatExporter.Core.Discord
     {
         var response = await GetJsonResponseAsync($"channels/{channelId}", cancellationToken);
 
-            var parentId = response.GetPropertyOrNull("parent_id")?.GetStringOrNull()?.Pipe(Snowflake.Parse);
+        var parentId = response.GetPropertyOrNull("parent_id")?.GetNonWhiteSpaceStringOrNull()?.Pipe(Snowflake.Parse);
 
         var category = parentId is not null
             ? await GetChannelCategoryAsync(parentId.Value, cancellationToken)
@@ -233,7 +278,7 @@ namespace DiscordChatExporter.Core.Discord
         Snowflake channelId,
         Snowflake? after = null,
         Snowflake? before = null,
-            IProgress<double>? progress = null,
+        IProgress<Percentage>? progress = null,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         // Get the last message in the specified range.
@@ -282,16 +327,13 @@ namespace DiscordChatExporter.Core.Discord
                     var exportedDuration = (message.Timestamp - firstMessage.Timestamp).Duration();
                     var totalDuration = (lastMessage.Timestamp - firstMessage.Timestamp).Duration();
 
-                        if (totalDuration > TimeSpan.Zero)
-                        {
-                            progress.Report(exportedDuration / totalDuration);
-                        }
+                    progress.Report(Percentage.FromFraction(
                         // Avoid division by zero if all messages have the exact same timestamp
                         // (which may be the case if there's only one message in the channel)
-                        else
-                        {
-                            progress.Report(1);
-                        }
+                        totalDuration > TimeSpan.Zero
+                            ? exportedDuration / totalDuration
+                            : 1
+                    ));
                 }
 
                 yield return message;
@@ -299,5 +341,4 @@ namespace DiscordChatExporter.Core.Discord
             }
         }
     }
-    }
 }

DiscordChatExporter.Core/Discord/Snowflake.cs

@@ -3,20 +3,20 @@ using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
 using System.Text.RegularExpressions;
 
-namespace DiscordChatExporter.Core.Discord
+namespace DiscordChatExporter.Core.Discord;
+
+public readonly partial record struct Snowflake(ulong Value)
 {
-    public readonly partial record struct Snowflake(ulong Value)
-    {
     public DateTimeOffset ToDate() => DateTimeOffset.FromUnixTimeMilliseconds(
         (long)((Value >> 22) + 1420070400000UL)
     ).ToLocalTime();
 
     [ExcludeFromCodeCoverage]
     public override string ToString() => Value.ToString(CultureInfo.InvariantCulture);
-    }
+}
 
-    public partial record struct Snowflake
-    {
+public partial record struct Snowflake
+{
     public static Snowflake Zero { get; } = new(0);
 
     public static Snowflake FromDate(DateTimeOffset date) => new(
@@ -47,10 +47,17 @@ namespace DiscordChatExporter.Core.Discord
         TryParse(str, formatProvider) ?? throw new FormatException($"Invalid snowflake '{str}'.");
 
     public static Snowflake Parse(string str) => Parse(str, null);
-    }
+}
 
-    public partial record struct Snowflake : IComparable<Snowflake>
-    {
+public partial record struct Snowflake : IComparable<Snowflake>, IComparable
+{
     public int CompareTo(Snowflake other) => Value.CompareTo(other.Value);
+
+    public int CompareTo(object? obj)
+    {
+        if (obj is not Snowflake other)
+            throw new ArgumentException($"Object must be of type {nameof(Snowflake)}.");
+
+        return Value.CompareTo(other.Value);
     }
 }

DiscordChatExporter.Core/Discord/TokenKind.cs

@@ -0,0 +1,8 @@
+namespace DiscordChatExporter.Core.Discord;
+
+public enum TokenKind
+{
+    Unknown,
+    User,
+    Bot
+}

DiscordChatExporter.Core/DiscordChatExporter.Core.csproj

@@ -5,10 +5,12 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Gress" Version="2.0.1" />
     <PackageReference Include="JsonExtensions" Version="1.2.0" />
-    <PackageReference Include="MiniRazor.CodeGen" Version="2.2.0" />
-    <PackageReference Include="Polly" Version="7.2.2" />
+    <PackageReference Include="MiniRazor.CodeGen" Version="2.2.1" />
+    <PackageReference Include="Polly" Version="7.2.3" />
     <PackageReference Include="Superpower" Version="3.0.0" />
+    <PackageReference Include="WebMarkupMin.Core" Version="2.12.0" />
   </ItemGroup>
 
   <ItemGroup>

DiscordChatExporter.Core/Exceptions/DiscordChatExporterException.cs

@@ -1,10 +1,10 @@
 using System;
 using System.Net.Http;
 
-namespace DiscordChatExporter.Core.Exceptions
+namespace DiscordChatExporter.Core.Exceptions;
+
+public partial class DiscordChatExporterException : Exception
 {
-    public partial class DiscordChatExporterException : Exception
-    {
     public bool IsFatal { get; }
 
     public DiscordChatExporterException(string message, bool isFatal = false)
@@ -12,10 +12,10 @@ namespace DiscordChatExporter.Core.Exceptions
     {
         IsFatal = isFatal;
     }
-    }
+}
 
-    public partial class DiscordChatExporterException
-    {
+public partial class DiscordChatExporterException
+{
     internal static DiscordChatExporterException FailedHttpRequest(HttpResponseMessage response)
     {
         var message = $@"
@@ -41,5 +41,4 @@ Failed to perform an HTTP request.
 
     internal static DiscordChatExporterException ChannelIsEmpty() =>
         new("No messages found for the specified period.");
-    }
 }

DiscordChatExporter.Core/Exporting/ChannelExporter.cs

@@ -8,20 +8,19 @@ using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Discord.Data.Common;
 using DiscordChatExporter.Core.Exceptions;
 using DiscordChatExporter.Core.Utils.Extensions;
+using Gress;
 
-namespace DiscordChatExporter.Core.Exporting
+namespace DiscordChatExporter.Core.Exporting;
+
+public class ChannelExporter
 {
-    public class ChannelExporter
-    {
     private readonly DiscordClient _discord;
 
     public ChannelExporter(DiscordClient discord) => _discord = discord;
 
-        public ChannelExporter(AuthToken token) : this(new DiscordClient(token)) {}
-
     public async ValueTask ExportChannelAsync(
         ExportRequest request,
-            IProgress<double>? progress = null,
+        IProgress<Percentage>? progress = null,
         CancellationToken cancellationToken = default)
     {
         // Build context
@@ -79,5 +78,4 @@ namespace DiscordChatExporter.Core.Exporting
         if (!exportedAnything)
             throw DiscordChatExporterException.ChannelIsEmpty();
     }
-    }
 }

DiscordChatExporter.Core/Exporting/ExportContext.cs

@@ -10,10 +10,10 @@ using DiscordChatExporter.Core.Discord;
 using DiscordChatExporter.Core.Discord.Data;
 using DiscordChatExporter.Core.Utils.Extensions;
 
-namespace DiscordChatExporter.Core.Exporting
+namespace DiscordChatExporter.Core.Exporting;
+
+internal class ExportContext
 {
-    internal class ExportContext
-    {
     private readonly MediaDownloader _mediaDownloader;
 
     public ExportRequest Request { get; }
@@ -102,5 +102,4 @@ namespace DiscordChatExporter.Core.Exporting
             return url;
         }
     }
-    }
 }

DiscordChatExporter.Core/Exporting/ExportFormat.cs

@@ -1,18 +1,18 @@
 using System;
 
-namespace DiscordChatExporter.Core.Exporting
+namespace DiscordChatExporter.Core.Exporting;
+
+public enum ExportFormat
 {
-    public enum ExportFormat
-    {
     PlainText,
     HtmlDark,
     HtmlLight,
     Csv,
     Json
-    }
+}
 
-    public static class ExportFormatExtensions
-    {
+public static class ExportFormatExtensions
+{
     public static string GetFileExtension(this ExportFormat format) => format switch
     {
         ExportFormat.PlainText => "txt",
@@ -32,5 +32,4 @@ namespace DiscordChatExporter.Core.Exporting
         ExportFormat.Json => "JSON",
         _ => throw new ArgumentOutOfRangeException(nameof(format))
     };
-    }
 }

DiscordChatExporter.Core/Exporting/ExportRequest.cs

@@ -8,9 +8,9 @@ using DiscordChatExporter.Core.Exporting.Filtering;
 using DiscordChatExporter.Core.Exporting.Partitioning;
 using DiscordChatExporter.Core.Utils;
 
-namespace DiscordChatExporter.Core.Exporting
-{
-    public partial record ExportRequest(
+namespace DiscordChatExporter.Core.Exporting;
+
+public partial record ExportRequest(
     Guild Guild,
     Channel Channel,
     string OutputPath,
@@ -22,7 +22,7 @@ namespace DiscordChatExporter.Core.Exporting
     bool ShouldDownloadMedia,
     bool ShouldReuseMedia,
     string DateFormat)
-    {
+{
     private string? _outputBaseFilePath;
     public string OutputBaseFilePath => _outputBaseFilePath ??= GetOutputBaseFilePath(
         Guild,
@@ -36,10 +36,10 @@ namespace DiscordChatExporter.Core.Exporting
     public string OutputBaseDirPath => Path.GetDirectoryName(OutputBaseFilePath) ?? OutputPath;
 
     public string OutputMediaDirPath => $"{OutputBaseFilePath}_Files{Path.DirectorySeparatorChar}";
-    }
+}
 
-    public partial record ExportRequest
-    {
+public partial record ExportRequest
+{
     private static string GetOutputBaseFilePath(
         Guild guild,
         Channel channel,
@@ -48,10 +48,9 @@ namespace DiscordChatExporter.Core.Exporting
         Snowflake? after = null,
         Snowflake? before = null)
     {
-
         // Formats path
         outputPath = Regex.Replace(outputPath, "%.", m =>
-                PathEx.EscapePath(m.Value switch
+            PathEx.EscapeFileName(m.Value switch
             {
                 "%g" => guild.Id.ToString(),
                 "%G" => guild.Name,
@@ -61,8 +60,9 @@ namespace DiscordChatExporter.Core.Exporting
                 "%C" => channel.Name,
                 "%p" => channel.Position?.ToString() ?? "0",
                 "%P" => channel.Category.Position?.ToString() ?? "0",
-                    "%a" => (after ?? Snowflake.Zero).ToDate().ToString("yyyy-MM-dd"),
-                    "%b" => (before?.ToDate() ?? DateTime.Now).ToString("yyyy-MM-dd"),
+                "%a" => after?.ToDate().ToString("yyyy-MM-dd") ?? "",
+                "%b" => before?.ToDate().ToString("yyyy-MM-dd") ?? "",
+                "%d" => DateTimeOffset.Now.ToString("yyyy-MM-dd"),
                 "%%" => "%",
                 _ => m.Value
             })
@@ -94,7 +94,7 @@ namespace DiscordChatExporter.Core.Exporting
         // Date range
         if (after is not null || before is not null)
         {
-                buffer.Append(" (");
+            buffer.Append(' ').Append('(');
 
             // Both 'after' and 'before' are set
             if (after is not null && before is not null)
@@ -112,16 +112,12 @@ namespace DiscordChatExporter.Core.Exporting
                 buffer.Append($"before {before.Value.ToDate():yyyy-MM-dd}");
             }
 
-                buffer.Append(")");
+            buffer.Append(')');
         }
 
         // File extension
-            buffer.Append($".{format.GetFileExtension()}");
+        buffer.Append('.').Append(format.GetFileExtension());
 
-            // Replace invalid chars
-            PathEx.EscapePath(buffer);
-
-            return buffer.ToString();
-        }
+        return PathEx.EscapeFileName(buffer.ToString());
     }
 }

DiscordChatExporter.Core/Exporting/Filtering/BinaryExpressionKind.cs

@@ -1,8 +1,7 @@
-namespace DiscordChatExporter.Core.Exporting.Filtering
+namespace DiscordChatExporter.Core.Exporting.Filtering;
+
+internal enum BinaryExpressionKind
 {
-    internal enum BinaryExpressionKind
-    {
     Or,
     And
-    }
 }

DiscordChatExporter.Core/Exporting/Filtering/BinaryExpressionMessageFilter.cs

@@ -1,10 +1,10 @@
 using System;
 using DiscordChatExporter.Core.Discord.Data;
 
-namespace DiscordChatExporter.Core.Exporting.Filtering
+namespace DiscordChatExporter.Core.Exporting.Filtering;
+
+internal class BinaryExpressionMessageFilter : MessageFilter
 {
-    internal class BinaryExpressionMessageFilter : MessageFilter
-    {
     private readonly MessageFilter _first;
     private readonly MessageFilter _second;
     private readonly BinaryExpressionKind _kind;
@@ -22,5 +22,4 @@ namespace DiscordChatExporter.Core.Exporting.Filtering
         BinaryExpressionKind.And => _first.IsMatch(message) && _second.IsMatch(message),
         _ => throw new InvalidOperationException($"Unknown binary expression kind '{_kind}'.")
     };
-    }
 }

DiscordChatExporter.Core/Exporting/Filtering/ContainsMessageFilter.cs

@@ -2,19 +2,27 @@
 using System.Text.RegularExpressions;
 using DiscordChatExporter.Core.Discord.Data;
 
-namespace DiscordChatExporter.Core.Exporting.Filtering
+namespace DiscordChatExporter.Core.Exporting.Filtering;
+
+internal class ContainsMessageFilter : MessageFilter
 {
-    internal class ContainsMessageFilter : MessageFilter
-    {
     private readonly string _text;
 
     public ContainsMessageFilter(string text) => _text = text;
 
+    // Match content within word boundaries, between spaces, or as the whole input.
+    // For example, "max" shouldn't match on content "our maximum effort",
+    // but should match on content "our max effort".
+    // Also, "(max)" should match on content "our (max) effort", even though
+    // parentheses are not considered word characters.
+    // https://github.com/Tyrrrz/DiscordChatExporter/issues/909
     private bool IsMatch(string? content) =>
         !string.IsNullOrWhiteSpace(content) &&
         Regex.IsMatch(
             content,
-                "\\b" + Regex.Escape(_text) + "\\b",
+            @"(?:\b|\s|^)" +
+            Regex.Escape(_text) +
+            @"(?:\b|\s|$)",
             RegexOptions.IgnoreCase | RegexOptions.CultureInvariant
         );
 
@@ -30,5 +38,4 @@ namespace DiscordChatExporter.Core.Exporting.Filtering
                 IsMatch(f.Value)
             )
         );
-    }
 }

DiscordChatExporter.Core/Exporting/Filtering/FromMessageFilter.cs

@@ -1,10 +1,10 @@
 using System;
 using DiscordChatExporter.Core.Discord.Data;
 
-namespace DiscordChatExporter.Core.Exporting.Filtering
+namespace DiscordChatExporter.Core.Exporting.Filtering;
+
+internal class FromMessageFilter : MessageFilter
 {
-    internal class FromMessageFilter : MessageFilter
-    {
     private readonly string _value;
 
     public FromMessageFilter(string value) => _value = value;
@@ -13,5 +13,4 @@ namespace DiscordChatExporter.Core.Exporting.Filtering
         string.Equals(_value, message.Author.Name, StringComparison.OrdinalIgnoreCase) ||
         string.Equals(_value, message.Author.FullName, StringComparison.OrdinalIgnoreCase) ||
         string.Equals(_value, message.Author.Id.ToString(), StringComparison.OrdinalIgnoreCase);
-    }
 }

DiscordChatExporter.Core/Exporting/Filtering/HasMessageFilter.cs

@@ -3,10 +3,10 @@ using System.Linq;
 using System.Text.RegularExpressions;
 using DiscordChatExporter.Core.Discord.Data;
 
-namespace DiscordChatExporter.Core.Exporting.Filtering
+namespace DiscordChatExporter.Core.Exporting.Filtering;
+
+internal class HasMessageFilter : MessageFilter
 {
-    internal class HasMessageFilter : MessageFilter
-    {
     private readonly MessageContentMatchKind _kind;
 
     public HasMessageFilter(MessageContentMatchKind kind) => _kind = kind;
@@ -19,7 +19,7 @@ namespace DiscordChatExporter.Core.Exporting.Filtering
         MessageContentMatchKind.Video => message.Attachments.Any(file => file.IsVideo),
         MessageContentMatchKind.Image => message.Attachments.Any(file => file.IsImage),
         MessageContentMatchKind.Sound => message.Attachments.Any(file => file.IsAudio),
+        MessageContentMatchKind.Pin => message.IsPinned,
         _ => throw new InvalidOperationException($"Unknown message content match kind '{_kind}'.")
     };
-    }
 }

DiscordChatExporter.Core/Exporting/Filtering/MentionsMessageFilter.cs

@@ -2,10 +2,10 @@
 using System.Linq;
 using DiscordChatExporter.Core.Discord.Data;
 
-namespace DiscordChatExporter.Core.Exporting.Filtering
+namespace DiscordChatExporter.Core.Exporting.Filtering;
+
+internal class MentionsMessageFilter : MessageFilter
 {
-    internal class MentionsMessageFilter : MessageFilter
-    {
     private readonly string _value;
 
     public MentionsMessageFilter(string value) => _value = value;
@@ -15,5 +15,4 @@ namespace DiscordChatExporter.Core.Exporting.Filtering
         string.Equals(_value, user.FullName, StringComparison.OrdinalIgnoreCase) ||
         string.Equals(_value, user.Id.ToString(), StringComparison.OrdinalIgnoreCase)
     );
-    }
 }

DiscordChatExporter.Core/Exporting/Filtering/MessageContentMatchKind.cs

@@ -1,12 +1,12 @@
-namespace DiscordChatExporter.Core.Exporting.Filtering
+namespace DiscordChatExporter.Core.Exporting.Filtering;
+
+internal enum MessageContentMatchKind
 {
-    internal enum MessageContentMatchKind
-    {
     Link,
     Embed,
     File,
     Video,
     Image,
-        Sound
-    }
+    Sound,
+    Pin
 }

DiscordChatExporter.Core/Exporting/Filtering/MessageFilter.cs

@@ -2,17 +2,16 @@
 using DiscordChatExporter.Core.Exporting.Filtering.Parsing;
 using Superpower;
 
-namespace DiscordChatExporter.Core.Exporting.Filtering
-{
-    public abstract partial class MessageFilter
-    {
-        public abstract bool IsMatch(Message message);
-    }
+namespace DiscordChatExporter.Core.Exporting.Filtering;
 
-    public partial class MessageFilter
-    {
+public abstract partial class MessageFilter
+{
+    public abstract bool IsMatch(Message message);
+}
+
+public partial class MessageFilter
+{
     public static MessageFilter Null { get; } = new NullMessageFilter();
 
     public static MessageFilter Parse(string value) => FilterGrammar.Filter.Parse(value);
-    }
 }

DiscordChatExporter.Core/Exporting/Filtering/NegatedMessageFilter.cs

@@ -1,13 +1,12 @@
 using DiscordChatExporter.Core.Discord.Data;
 
-namespace DiscordChatExporter.Core.Exporting.Filtering
+namespace DiscordChatExporter.Core.Exporting.Filtering;
+
+internal class NegatedMessageFilter : MessageFilter
 {
-    internal class NegatedMessageFilter : MessageFilter
-    {
     private readonly MessageFilter _filter;
 
     public NegatedMessageFilter(MessageFilter filter) => _filter = filter;
 
     public override bool IsMatch(Message message) => !_filter.IsMatch(message);
-    }
 }