Update version

Fixes #41

Changelog.md

@@ -0,0 +1,18 @@
+### v2.4 (08-Apr-2018)
+
+- Added channel topic to output.
+- Added a command line interface alternative to the current graphical user interface.
+- Implemented application auto-update (can be disabled in settings).
+- Improved some GUI elements and replaced some dialogs with notifications.
+- Fixed a lot of issues with the markdown processor.
+- Fixed DM group chats that have a custom name being shown as blank in the list.
+
+### v2.3 (27-Oct-2017)
+
+- Improved message date filtering, it's now marginally faster.
+- Fixed underscores not recognized as italics in markdown.
+- Added support for custom emojis.
+- Added support for user and role mentions.
+- Added support for channel mentions.
+- Fixed text in pre blocks not being wrapped correctly.
+- Added workaround for non-default message types.

Deploy/Prepare.ps1

@@ -0,0 +1,11 @@
+New-Item "$PSScriptRoot\bin" -ItemType Directory -Force
+
+# GUI
+$files = @()
+$files += Get-ChildItem -Path "$PSScriptRoot\..\DiscordChatExporter.Gui\bin\Release\*" -Include "*.exe", "*.dll", "*.config"
+$files | Compress-Archive -DestinationPath "$PSScriptRoot\bin\DiscordChatExporter.zip" -Force
+
+# CLI
+$files = @()
+$files += Get-ChildItem -Path "$PSScriptRoot\..\DiscordChatExporter.Cli\bin\Release\net461\*" -Include "*.exe", "*.dll", "*.config"
+$files | Compress-Archive -DestinationPath "$PSScriptRoot\bin\DiscordChatExporter.Cli.zip" -Force

DiscordChatExporter.Cli/CliOptions.cs

@@ -0,0 +1,24 @@
+using System;
+using DiscordChatExporter.Core.Models;
+
+namespace DiscordChatExporter.Cli
+{
+    public class CliOptions
+    {
+        public string Token { get; set; }
+
+        public string ChannelId { get; set; }
+
+        public ExportFormat ExportFormat { get; set; }
+
+        public string FilePath { get; set; }
+
+        public DateTime? From { get; set; }
+
+        public DateTime? To { get; set; }
+
+        public string DateFormat { get; set; }
+
+        public int MessageGroupLimit { get; set; }
+    }
+}

DiscordChatExporter.Cli/Container.cs

@@ -0,0 +1,37 @@
+using CommonServiceLocator;
+using DiscordChatExporter.Cli.ViewModels;
+using DiscordChatExporter.Core.Services;
+using GalaSoft.MvvmLight.Ioc;
+
+namespace DiscordChatExporter.Cli
+{
+    public class Container
+    {
+        public IMainViewModel MainViewModel => Resolve<IMainViewModel>();
+        public ISettingsService SettingsService => Resolve<ISettingsService>();
+
+        private T Resolve<T>(string key = null)
+        {
+            return ServiceLocator.Current.GetInstance<T>(key);
+        }
+
+        public void Init()
+        {
+            ServiceLocator.SetLocatorProvider(() => SimpleIoc.Default);
+            SimpleIoc.Default.Reset();
+
+            // Services
+            SimpleIoc.Default.Register<IDataService, DataService>();
+            SimpleIoc.Default.Register<IExportService, ExportService>();
+            SimpleIoc.Default.Register<IMessageGroupService, MessageGroupService>();
+            SimpleIoc.Default.Register<ISettingsService, SettingsService>();
+
+            // View models
+            SimpleIoc.Default.Register<IMainViewModel, MainViewModel>(true);
+        }
+
+        public void Cleanup()
+        {
+        }
+    }
+}

DiscordChatExporter.Cli/DiscordChatExporter.Cli.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net461</TargetFramework>
+        <Version>2.4</Version>
+        <Company>Tyrrrz</Company>
+        <Copyright>Copyright (c) 2017-2018 Alexey Golub</Copyright>
+        <ApplicationIcon>..\favicon.ico</ApplicationIcon>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="CommonServiceLocator" Version="2.0.3" />
+        <PackageReference Include="FluentCommandLineParser" Version="1.4.3" />
+        <PackageReference Include="MvvmLightLibs" Version="5.4.1" />
+        <PackageReference Include="Tyrrrz.Extensions" Version="1.5.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <ProjectReference Include="..\DiscordChatExporter.Core\DiscordChatExporter.Core.csproj" />
+    </ItemGroup>
+
+</Project>

DiscordChatExporter.Cli/Program.cs

@@ -0,0 +1,107 @@
+using System;
+using System.Reflection;
+using DiscordChatExporter.Core.Models;
+using Fclp;
+
+namespace DiscordChatExporter.Cli
+{
+    public static class Program
+    {
+        private static readonly Container Container = new Container();
+
+        private static void ShowHelp()
+        {
+            var version = Assembly.GetExecutingAssembly().GetName().Version;
+
+            Console.WriteLine($"=== Discord Chat Exporter (Command Line Interface) v{version} ===");
+            Console.WriteLine();
+            Console.WriteLine("[-t] [--token]       Discord authorization token.");
+            Console.WriteLine("[-c] [--channel]     Discord channel ID.");
+            Console.WriteLine("[-f] [--format]      Export format (PlainText/HtmlDark/HtmlLight). Optional.");
+            Console.WriteLine("[-o] [--output]      Output file path. Optional.");
+            Console.WriteLine("     [--datefrom]    Limit to messages after this date. Optional.");
+            Console.WriteLine("     [--dateto]      Limit to messages before this date. Optional.");
+            Console.WriteLine("     [--dateformat]  Date format. Optional.");
+            Console.WriteLine("     [--grouplimit]  Message group limit. Optional.");
+            Console.WriteLine();
+            Console.WriteLine("# To get authorization token:");
+            Console.WriteLine(" - Open Discord app");
+            Console.WriteLine(" - Log in if you haven't");
+            Console.WriteLine(" - Press Ctrl+Shift+I");
+            Console.WriteLine(" - Navigate to Application tab");
+            Console.WriteLine(" - Expand Storage > Local Storage > https://discordapp.com");
+            Console.WriteLine(" - Find \"token\" under key and copy the value");
+            Console.WriteLine();
+            Console.WriteLine("# To get channel ID:");
+            Console.WriteLine(" - Open Discord app");
+            Console.WriteLine(" - Log in if you haven't");
+            Console.WriteLine(" - Go to any channel you want to export");
+            Console.WriteLine(" - Press Ctrl+Shift+I");
+            Console.WriteLine(" - Navigate to Console tab");
+            Console.WriteLine(" - Type \"document.URL\" and press Enter");
+            Console.WriteLine(" - Copy the long sequence of numbers after last slash");
+        }
+
+        private static CliOptions ParseOptions(string[] args)
+        {
+            var argsParser = new FluentCommandLineParser<CliOptions>();
+
+            var settings = Container.SettingsService;
+
+            argsParser.Setup(o => o.Token).As('t', "token").Required();
+            argsParser.Setup(o => o.ChannelId).As('c', "channel").Required();
+            argsParser.Setup(o => o.ExportFormat).As('f', "format").SetDefault(ExportFormat.HtmlDark);
+            argsParser.Setup(o => o.FilePath).As('o', "output").SetDefault(null);
+            argsParser.Setup(o => o.From).As("datefrom").SetDefault(null);
+            argsParser.Setup(o => o.To).As("dateto").SetDefault(null);
+            argsParser.Setup(o => o.DateFormat).As("dateformat").SetDefault(settings.DateFormat);
+            argsParser.Setup(o => o.MessageGroupLimit).As("grouplimit").SetDefault(settings.MessageGroupLimit);
+
+            var parsed = argsParser.Parse(args);
+
+            // Show help if no arguments
+            if (parsed.EmptyArgs)
+            {
+                ShowHelp();
+                Environment.Exit(0);
+            }
+            // Show error if there are any
+            else if (parsed.HasErrors)
+            {
+                Console.Error.Write(parsed.ErrorText);
+                Environment.Exit(-1);
+            }
+
+            return argsParser.Object;
+        }
+
+        public static void Main(string[] args)
+        {
+            // Init container
+            Container.Init();
+
+            // Parse options
+            var options = ParseOptions(args);
+
+            // Inject some settings
+            var settings = Container.SettingsService;
+            settings.DateFormat = options.DateFormat;
+            settings.MessageGroupLimit = options.MessageGroupLimit;
+
+            // Export
+            var vm = Container.MainViewModel;
+            vm.ExportAsync(
+                options.Token,
+                options.ChannelId,
+                options.FilePath,
+                options.ExportFormat,
+                options.From,
+                options.To).GetAwaiter().GetResult();
+
+            // Cleanup container
+            Container.Cleanup();
+
+            Console.WriteLine("Export complete.");
+        }
+    }
+}

DiscordChatExporter.Cli/ViewModels/IMainViewModel.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Threading.Tasks;
+using DiscordChatExporter.Core.Models;
+
+namespace DiscordChatExporter.Cli.ViewModels
+{
+    public interface IMainViewModel
+    {
+        Task ExportAsync(string token, string channelId, string filePath, ExportFormat format, DateTime? from,
+            DateTime? to);
+    }
+}

DiscordChatExporter.Cli/ViewModels/MainViewModel.cs

@@ -0,0 +1,53 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using DiscordChatExporter.Core.Models;
+using DiscordChatExporter.Core.Services;
+using Tyrrrz.Extensions;
+
+namespace DiscordChatExporter.Cli.ViewModels
+{
+    public class MainViewModel : IMainViewModel
+    {
+        private readonly IDataService _dataService;
+        private readonly IMessageGroupService _messageGroupService;
+        private readonly IExportService _exportService;
+
+        public MainViewModel(IDataService dataService, IMessageGroupService messageGroupService,
+            IExportService exportService)
+        {
+            _dataService = dataService;
+            _messageGroupService = messageGroupService;
+            _exportService = exportService;
+        }
+
+        public async Task ExportAsync(string token, string channelId, string filePath, ExportFormat format, DateTime? from,
+            DateTime? to)
+        {
+            // Get channel and guild
+            var channel = await _dataService.GetChannelAsync(token, channelId);
+            var guild = channel.GuildId == Guild.DirectMessages.Id
+                ? Guild.DirectMessages
+                : await _dataService.GetGuildAsync(token, channel.GuildId);
+
+            // Generate file path if not set
+            if (filePath.IsBlank())
+            {
+                filePath = $"{guild.Name} - {channel.Name}.{format.GetFileExtension()}"
+                    .Replace(Path.GetInvalidFileNameChars(), '_');
+            }
+
+            // Get messages
+            var messages = await _dataService.GetChannelMessagesAsync(token, channelId, from, to);
+
+            // Group them
+            var messageGroups = _messageGroupService.GroupMessages(messages);
+
+            // Create log
+            var log = new ChannelChatLog(guild, channel, messageGroups, messages.Count);
+
+            // Export
+            await _exportService.ExportAsync(format, filePath, log);
+        }
+    }
+}

DiscordChatExporter.Core/DiscordChatExporter.Core.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net461</TargetFramework>
+        <Version>2.4</Version>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <EmbeddedResource Include="Resources\ExportService\DarkTheme.css" />
+        <EmbeddedResource Include="Resources\ExportService\LightTheme.css" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <Reference Include="System.Net.Http" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+        <PackageReference Include="Onova" Version="2.1.0" />
+        <PackageReference Include="Tyrrrz.Extensions" Version="1.5.0" />
+        <PackageReference Include="Tyrrrz.Settings" Version="1.3.2" />
+    </ItemGroup>
+
+</Project>

DiscordChatExporter.Core/Exceptions/HttpErrorStatusCodeException.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Net;
 
-namespace DiscordChatExporter.Exceptions
+namespace DiscordChatExporter.Core.Exceptions
 {
     public class HttpErrorStatusCodeException : Exception
     {

DiscordChatExporter.Core/Internal/Extensions.cs

@@ -0,0 +1,22 @@
+using System.IO;
+using System.Reflection;
+using System.Resources;
+
+namespace DiscordChatExporter.Core.Internal
+{
+    internal static class Extensions
+    {
+        public static string GetManifestResourceString(this Assembly assembly, string resourceName)
+        {
+            var stream = assembly.GetManifestResourceStream(resourceName);
+            if (stream == null)
+                throw new MissingManifestResourceException($"Could not find resource [{resourceName}].");
+
+            using (stream)
+            using (var reader = new StreamReader(stream))
+            {
+                return reader.ReadToEnd();
+            }
+        }
+    }
+}

DiscordChatExporter.Core/Models/Attachment.cs

@@ -1,4 +1,4 @@
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
     public class Attachment
     {

DiscordChatExporter.Core/Models/AttachmentType.cs

@@ -1,4 +1,4 @@
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
     public enum AttachmentType
     {

DiscordChatExporter.Core/Models/Channel.cs

@@ -0,0 +1,37 @@
+namespace DiscordChatExporter.Core.Models
+{
+    public partial class Channel
+    {
+        public string Id { get; }
+
+        public string GuildId { get; }
+
+        public string Name { get; }
+
+        public string Topic { get; }
+
+        public ChannelType Type { get; }
+
+        public Channel(string id, string guildId, string name, string topic, ChannelType type)
+        {
+            Id = id;
+            GuildId = guildId;
+            Name = name;
+            Topic = topic;
+            Type = type;
+        }
+
+        public override string ToString()
+        {
+            return Name;
+        }
+    }
+
+    public partial class Channel
+    {
+        public static Channel CreateDeletedChannel(string id)
+        {
+            return new Channel(id, null, "deleted-channel", null, ChannelType.GuildTextChat);
+        }
+    }
+}

DiscordChatExporter.Core/Models/ChannelChatLog.cs

@@ -1,6 +1,6 @@
 using System.Collections.Generic;
 
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
     public class ChannelChatLog
     {

DiscordChatExporter.Core/Models/ChannelType.cs

@@ -1,4 +1,4 @@
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
     public enum ChannelType
     {

DiscordChatExporter.Core/Models/ExportFormat.cs

@@ -1,4 +1,4 @@
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
     public enum ExportFormat
     {

DiscordChatExporter.Core/Models/Extensions.cs

@@ -1,6 +1,6 @@
 using System;
 
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
     public static class Extensions
     {
@@ -13,7 +13,7 @@ namespace DiscordChatExporter.Models
             if (format == ExportFormat.HtmlLight)
                 return "html";
 
-            throw new NotImplementedException();
+            throw new ArgumentOutOfRangeException(nameof(format));
         }
 
         public static string GetDisplayName(this ExportFormat format)
@@ -25,7 +25,7 @@ namespace DiscordChatExporter.Models
             if (format == ExportFormat.HtmlLight)
                 return "HTML (Light)";
 
-            throw new NotImplementedException();
+            throw new ArgumentOutOfRangeException(nameof(format));
         }
     }
 }

DiscordChatExporter.Core/Models/Guild.cs

@@ -1,8 +1,9 @@
-using Tyrrrz.Extensions;
+using System.Collections.Generic;
+using Tyrrrz.Extensions;
 
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
-    public class Guild
+    public partial class Guild
     {
         public string Id { get; }
 
@@ -14,11 +15,14 @@ namespace DiscordChatExporter.Models
             ? $"https://cdn.discordapp.com/icons/{Id}/{IconHash}.png"
             : "https://cdn.discordapp.com/embed/avatars/0.png";
 
-        public Guild(string id, string name, string iconHash)
+        public IReadOnlyList<Role> Roles { get; }
+
+        public Guild(string id, string name, string iconHash, IReadOnlyList<Role> roles)
         {
             Id = id;
             Name = name;
             IconHash = iconHash;
+            Roles = roles;
         }
 
         public override string ToString()
@@ -26,4 +30,9 @@ namespace DiscordChatExporter.Models
             return Name;
         }
     }
+
+    public partial class Guild
+    {
+        public static Guild DirectMessages { get; } = new Guild("@me", "Direct Messages", null, new Role[0]);
+    }
 }

DiscordChatExporter.Core/Models/Message.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+
+namespace DiscordChatExporter.Core.Models
+{
+    public class Message
+    {
+        public string Id { get; }
+
+        public string ChannelId { get; }
+
+        public MessageType Type { get; }
+
+        public User Author { get; }
+
+        public DateTime TimeStamp { get; }
+
+        public DateTime? EditedTimeStamp { get; }
+
+        public string Content { get; }
+
+        public IReadOnlyList<Attachment> Attachments { get; }
+
+        public IReadOnlyList<User> MentionedUsers { get; }
+
+        public IReadOnlyList<Role> MentionedRoles { get; }
+
+        public IReadOnlyList<Channel> MentionedChannels { get; }
+
+        public Message(string id, string channelId, MessageType type,
+            User author, DateTime timeStamp,
+            DateTime? editedTimeStamp, string content,
+            IReadOnlyList<Attachment> attachments, IReadOnlyList<User> mentionedUsers,
+            IReadOnlyList<Role> mentionedRoles, IReadOnlyList<Channel> mentionedChannels)
+        {
+            Id = id;
+            ChannelId = channelId;
+            Type = type;
+            Author = author;
+            TimeStamp = timeStamp;
+            EditedTimeStamp = editedTimeStamp;
+            Content = content;
+            Attachments = attachments;
+            MentionedUsers = mentionedUsers;
+            MentionedRoles = mentionedRoles;
+            MentionedChannels = mentionedChannels;
+        }
+
+        public override string ToString()
+        {
+            return Content;
+        }
+    }
+}

DiscordChatExporter.Core/Models/MessageGroup.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
 
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
     public class MessageGroup
     {

DiscordChatExporter.Core/Models/MessageType.cs

@@ -0,0 +1,14 @@
+namespace DiscordChatExporter.Core.Models
+{
+    public enum MessageType
+    {
+        Default,
+        RecipientAdd,
+        RecipientRemove,
+        Call,
+        ChannelNameChange,
+        ChannelIconChange,
+        ChannelPinnedMessage,
+        GuildMemberJoin
+    }
+}

DiscordChatExporter.Core/Models/Role.cs

@@ -0,0 +1,28 @@
+namespace DiscordChatExporter.Core.Models
+{
+    public partial class Role
+    {
+        public string Id { get; }
+
+        public string Name { get; }
+
+        public Role(string id, string name)
+        {
+            Id = id;
+            Name = name;
+        }
+
+        public override string ToString()
+        {
+            return Name;
+        }
+    }
+
+    public partial class Role
+    {
+        public static Role CreateDeletedRole(string id)
+        {
+            return new Role(id, "deleted-role");
+        }
+    }
+}

DiscordChatExporter.Core/Models/User.cs

@@ -1,6 +1,6 @@
 using Tyrrrz.Extensions;
 
-namespace DiscordChatExporter.Models
+namespace DiscordChatExporter.Core.Models
 {
     public class User
     {
@@ -10,11 +10,15 @@ namespace DiscordChatExporter.Models
 
         public string Name { get; }
 
+        public string FullName => $"{Name}#{Discriminator:0000}";
+
         public string AvatarHash { get; }
 
+        public string DefaultAvatarHash => $"{Discriminator % 5}";
+
         public string AvatarUrl => AvatarHash.IsNotBlank()
             ? $"https://cdn.discordapp.com/avatars/{Id}/{AvatarHash}.png"
-            : $"https://cdn.discordapp.com/embed/avatars/{Discriminator % 5}.png";
+            : $"https://cdn.discordapp.com/embed/avatars/{DefaultAvatarHash}.png";
 
         public User(string id, int discriminator, string name, string avatarHash)
         {
@@ -26,7 +30,7 @@ namespace DiscordChatExporter.Models
 
         public override string ToString()
         {
-            return $"{Name}#{Discriminator}";
+            return FullName;
         }
     }
 }

DiscordChatExporter.Core/Resources/ExportService/DarkTheme.css

@@ -10,7 +10,9 @@ a {
     text-decoration: none;
 }
 
-a:hover { text-decoration: underline; }
+a:hover {
+     text-decoration: underline;
+}
 
 div.pre {
     background-color: #2F3136;
@@ -18,7 +20,7 @@ div.pre {
     font-family: Consolas, Courier New, Courier, Monospace;
     margin-top: 4px;
     padding: 8px;
-    white-space: pre;
+    white-space: pre-wrap;
 }
 
 span.pre {
@@ -26,7 +28,7 @@ span.pre {
     font-family: Consolas, Courier New, Courier, Monospace;
     padding-left: 2px;
     padding-right: 2px;
-    white-space: pre;
+    white-space: pre-wrap;
 }
 
 div#info {
@@ -37,7 +39,9 @@ div#info {
     max-width: 100%;
 }
 
-div#log { max-width: 100%; }
+div#log {
+     max-width: 100%;
+}
 
 img.guild-icon {
     max-height: 64px;
@@ -51,15 +55,22 @@ div.info-right {
 
 div.guild-name {
     color: #FFFFFF;
-    font-size: 1.4rem;
+    font-size: 1.4em;
 }
 
 div.channel-name {
     color: #FFFFFF;
-    font-size: 1.2rem;
+    font-size: 1.2em;
 }
 
-div.misc { margin-top: 2px; }
+div.channel-topic {
+    margin-top: 2px;
+    color: #FFFFFF;
+}
+
+div.channel-messagecount {
+    margin-top: 2px;
+}
 
 div.msg {
     border-top: 1px solid rgba(255, 255, 255, 0.04);
@@ -84,28 +95,30 @@ img.msg-avatar {
 div.msg-right {
     flex: 1;
     margin-left: 20px;
+    min-width: 50%;
 }
 
 span.msg-user {
     color: #FFFFFF;
-    font-size: 1rem;
+    font-size: 1em;
 }
 
 span.msg-date {
     color: rgba(255, 255, 255, 0.2);
-    font-size: .75rem;
+    font-size: .75em;
     margin-left: 5px;
 }
 
 span.msg-edited {
     color: rgba(255, 255, 255, 0.2);
-    font-size: .8rem;
+    font-size: .8em;
     margin-left: 5px;
 }
 
 div.msg-content {
-    font-size: .9375rem;
+    font-size: .9375em;
     padding-top: 5px;
+    word-wrap: break-word;
 }
 
 div.msg-attachment {
@@ -116,4 +129,14 @@ div.msg-attachment {
 img.msg-attachment {
     max-height: 500px;
     max-width: 50%;
+}
+
+img.emoji {
+    height: 24px;
+    width: 24px;
+    vertical-align: -.4em;
+}
+
+span.mention {
+    font-weight: 600;
 }

DiscordChatExporter.Core/Resources/ExportService/LightTheme.css

@@ -10,7 +10,9 @@ a {
     text-decoration: none;
 }
 
-a:hover { text-decoration: underline; }
+a:hover {
+     text-decoration: underline;
+}
 
 div.pre {
     background-color: #F9F9F9;
@@ -18,6 +20,7 @@ div.pre {
     font-family: Consolas, Courier New, Courier, Monospace;
     margin-top: 4px;
     padding: 8px;
+    white-space: pre-wrap;
 }
 
 span.pre {
@@ -25,6 +28,7 @@ span.pre {
     font-family: Consolas, Courier New, Courier, Monospace;
     padding-left: 2px;
     padding-right: 2px;
+    white-space: pre-wrap;
 }
 
 div#info {
@@ -35,7 +39,9 @@ div#info {
     max-width: 100%;
 }
 
-div#log { max-width: 100%; }
+div#log {
+     max-width: 100%;
+}
 
 img.guild-icon {
     max-height: 64px;
@@ -49,15 +55,22 @@ div.info-right {
 
 div.guild-name {
     color: #2F3136;
-    font-size: 1.4rem;
+    font-size: 1.4em;
 }
 
 div.channel-name {
     color: #2F3136;
-    font-size: 1.2rem;
+    font-size: 1.2em;
 }
 
-div.misc { margin-top: 2px; }
+div.channel-topic {
+    margin-top: 2px;
+    color: #2F3136;
+}
+
+div.channel-messagecount {
+    margin-top: 2px;
+}
 
 div.msg {
     border-top: 1px solid #ECEEEF;
@@ -82,28 +95,30 @@ img.msg-avatar {
 div.msg-right {
     flex: 1;
     margin-left: 20px;
+    min-width: 50%;
 }
 
 span.msg-user {
     color: #2F3136;
-    font-size: 1rem;
+    font-size: 1em;
 }
 
 span.msg-date {
     color: #99AAB5;
-    font-size: .75rem;
+    font-size: .75em;
     margin-left: 5px;
 }
 
 span.msg-edited {
     color: #99AAB5;
-    font-size: .8rem;
+    font-size: .8em;
     margin-left: 5px;
 }
 
 div.msg-content {
-    font-size: .9375rem;
+    font-size: .9375em;
     padding-top: 5px;
+    word-wrap: break-word;
 }
 
 div.msg-attachment {
@@ -114,4 +129,14 @@ div.msg-attachment {
 img.msg-attachment {
     max-height: 500px;
     max-width: 50%;
+}
+
+img.emoji {
+    height: 24px;
+    width: 24px;
+    vertical-align: -.4em;
+}
+
+span.mention {
+    font-weight: 600;
 }

DiscordChatExporter.Core/Services/DataService.cs

@@ -0,0 +1,326 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using DiscordChatExporter.Core.Exceptions;
+using DiscordChatExporter.Core.Models;
+using Newtonsoft.Json.Linq;
+using Tyrrrz.Extensions;
+
+namespace DiscordChatExporter.Core.Services
+{
+    public partial class DataService : IDataService, IDisposable
+    {
+        private const string ApiRoot = "https://discordapp.com/api/v6";
+
+        private readonly HttpClient _httpClient = new HttpClient();
+        private readonly Dictionary<string, Role> _roleCache = new Dictionary<string, Role>();
+        private readonly Dictionary<string, Channel> _channelCache = new Dictionary<string, Channel>();
+
+        private User ParseUser(JToken token)
+        {
+            var id = token["id"].Value<string>();
+            var discriminator = token["discriminator"].Value<int>();
+            var name = token["username"].Value<string>();
+            var avatarHash = token["avatar"].Value<string>();
+
+            return new User(id, discriminator, name, avatarHash);
+        }
+
+        private Role ParseRole(JToken token)
+        {
+            var id = token["id"].Value<string>();
+            var name = token["name"].Value<string>();
+
+            return new Role(id, name);
+        }
+
+        private Guild ParseGuild(JToken token)
+        {
+            var id = token["id"].Value<string>();
+            var name = token["name"].Value<string>();
+            var iconHash = token["icon"].Value<string>();
+            var roles = token["roles"].Select(ParseRole).ToArray();
+
+            return new Guild(id, name, iconHash, roles);
+        }
+
+        private Channel ParseChannel(JToken token)
+        {
+            // Get basic data
+            var id = token["id"].Value<string>();
+            var guildId = token["guild_id"]?.Value<string>();
+            var type = (ChannelType) token["type"].Value<int>();
+            var topic = token["topic"]?.Value<string>();
+
+            // Extract name based on type
+            string name;
+            if (type.IsEither(ChannelType.DirectTextChat, ChannelType.DirectGroupTextChat))
+            {
+                guildId = Guild.DirectMessages.Id;
+
+                // Try to get name if it's set
+                name = token["name"]?.Value<string>();
+
+                // Otherwise use recipients as the name
+                if (name.IsBlank())
+                    name = token["recipients"].Select(ParseUser).Select(u => u.Name).JoinToString(", ");
+            }
+            else
+            {
+                name = token["name"].Value<string>();
+            }
+
+            return new Channel(id, guildId, name, topic, type);
+        }
+
+        private Message ParseMessage(JToken token)
+        {
+            // Get basic data
+            var id = token["id"].Value<string>();
+            var channelId = token["channel_id"].Value<string>();
+            var timeStamp = token["timestamp"].Value<DateTime>();
+            var editedTimeStamp = token["edited_timestamp"]?.Value<DateTime?>();
+            var content = token["content"].Value<string>();
+            var type = (MessageType) token["type"].Value<int>();
+
+            // Workarounds for non-default types
+            if (type == MessageType.RecipientAdd)
+                content = "Added a recipient.";
+            else if (type == MessageType.RecipientRemove)
+                content = "Removed a recipient.";
+            else if (type == MessageType.Call)
+                content = "Started a call.";
+            else if (type == MessageType.ChannelNameChange)
+                content = "Changed the channel name.";
+            else if (type == MessageType.ChannelIconChange)
+                content = "Changed the channel icon.";
+            else if (type == MessageType.ChannelPinnedMessage)
+                content = "Pinned a message.";
+            else if (type == MessageType.GuildMemberJoin)
+                content = "Joined the server.";
+
+            // Get author
+            var author = ParseUser(token["author"]);
+
+            // Get attachment
+            var attachments = new List<Attachment>();
+            foreach (var attachmentJson in token["attachments"].EmptyIfNull())
+            {
+                var attachmentId = attachmentJson["id"].Value<string>();
+                var attachmentUrl = attachmentJson["url"].Value<string>();
+                var attachmentType = attachmentJson["width"] != null
+                    ? AttachmentType.Image
+                    : AttachmentType.Other;
+                var attachmentFileName = attachmentJson["filename"].Value<string>();
+                var attachmentFileSize = attachmentJson["size"].Value<long>();
+
+                var attachment = new Attachment(
+                    attachmentId, attachmentType, attachmentUrl,
+                    attachmentFileName, attachmentFileSize);
+                attachments.Add(attachment);
+            }
+
+            // Get user mentions
+            var mentionedUsers = token["mentions"].Select(ParseUser).ToArray();
+
+            // Get role mentions
+            var mentionedRoles = token["mention_roles"]
+                .Values<string>()
+                .Select(i => _roleCache.GetOrDefault(i) ?? Role.CreateDeletedRole(id))
+                .ToArray();
+
+            // Get channel mentions
+            var mentionedChannels = Regex.Matches(content, "<#(\\d+)>")
+                .Cast<Match>()
+                .Select(m => m.Groups[1].Value)
+                .ExceptBlank()
+                .Select(i => _channelCache.GetOrDefault(i) ?? Channel.CreateDeletedChannel(id))
+                .ToArray();
+
+            return new Message(id, channelId, type, author, timeStamp, editedTimeStamp, content, attachments,
+                mentionedUsers, mentionedRoles, mentionedChannels);
+        }
+
+        private async Task<string> GetStringAsync(string url)
+        {
+            using (var response = await _httpClient.GetAsync(url))
+            {
+                // Check status code
+                // We throw our own exception here because default one doesn't have status code
+                if (!response.IsSuccessStatusCode)
+                    throw new HttpErrorStatusCodeException(response.StatusCode);
+
+                // Get content
+                return await response.Content.ReadAsStringAsync();
+            }
+        }
+
+        public async Task<Guild> GetGuildAsync(string token, string guildId)
+        {
+            // Form request url
+            var url = $"{ApiRoot}/guilds/{guildId}?token={token}";
+
+            // Get response
+            var content = await GetStringAsync(url);
+
+            // Parse
+            var guild = ParseGuild(JToken.Parse(content));
+
+            // Add roles to cache
+            foreach (var role in guild.Roles)
+                _roleCache[role.Id] = role;
+
+            return guild;
+        }
+
+        public async Task<Channel> GetChannelAsync(string token, string channelId)
+        {
+            // Form request url
+            var url = $"{ApiRoot}/channels/{channelId}?token={token}";
+
+            // Get response
+            var content = await GetStringAsync(url);
+
+            // Parse
+            var channel = ParseChannel(JToken.Parse(content));
+
+            // Add channel to cache
+            _channelCache[channel.Id] = channel;
+
+            return channel;
+        }
+
+        public async Task<IReadOnlyList<Channel>> GetGuildChannelsAsync(string token, string guildId)
+        {
+            // Form request url
+            var url = $"{ApiRoot}/guilds/{guildId}/channels?token={token}";
+
+            // Get response
+            var content = await GetStringAsync(url);
+
+            // Parse
+            var channels = JArray.Parse(content).Select(ParseChannel).ToArray();
+
+            // Add channels to cache
+            foreach (var channel in channels)
+                _channelCache[channel.Id] = channel;
+
+            return channels;
+        }
+
+        public async Task<IReadOnlyList<Guild>> GetUserGuildsAsync(string token)
+        {
+            // Form request url
+            var url = $"{ApiRoot}/users/@me/guilds?token={token}&limit=100";
+
+            // Get response
+            var content = await GetStringAsync(url);
+
+            // Parse IDs
+            var guildIds = JArray.Parse(content).Select(t => t["id"].Value<string>());
+
+            // Get full guild infos
+            var guilds = new List<Guild>();
+            foreach (var guildId in guildIds)
+            {
+                var guild = await GetGuildAsync(token, guildId);
+                guilds.Add(guild);
+            }
+
+            return guilds;
+        }
+
+        public async Task<IReadOnlyList<Channel>> GetDirectMessageChannelsAsync(string token)
+        {
+            // Form request url
+            var url = $"{ApiRoot}/users/@me/channels?token={token}";
+
+            // Get response
+            var content = await GetStringAsync(url);
+
+            // Parse
+            var channels = JArray.Parse(content).Select(ParseChannel).ToArray();
+
+            return channels;
+        }
+
+        public async Task<IReadOnlyList<Message>> GetChannelMessagesAsync(string token, string channelId,
+            DateTime? from, DateTime? to)
+        {
+            var result = new List<Message>();
+
+            // We are going backwards from last message to first
+            // collecting everything between them in batches
+            var beforeId = to != null ? DateTimeToSnowflake(to.Value) : null;
+            while (true)
+            {
+                // Form request url
+                var url = $"{ApiRoot}/channels/{channelId}/messages?token={token}&limit=100";
+                if (beforeId.IsNotBlank())
+                    url += $"&before={beforeId}";
+
+                // Get response
+                var content = await GetStringAsync(url);
+
+                // Parse
+                var messages = JArray.Parse(content).Select(ParseMessage);
+
+                // Add messages to list
+                string currentMessageId = null;
+                foreach (var message in messages)
+                {
+                    // Break when the message is older than from date
+                    if (from != null && message.TimeStamp < from)
+                    {
+                        currentMessageId = null;
+                        break;
+                    }
+
+                    // Add message
+                    result.Add(message);
+                    currentMessageId = message.Id;
+                }
+
+                // If no messages - break
+                if (currentMessageId == null)
+                    break;
+
+                // Otherwise offset the next request
+                beforeId = currentMessageId;
+            }
+
+            // Messages appear newest first, we need to reverse
+            result.Reverse();
+
+            return result;
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                _httpClient.Dispose();
+            }
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+    }
+
+    public partial class DataService
+    {
+        private static string DateTimeToSnowflake(DateTime dateTime)
+        {
+            const long epoch = 62135596800000;
+            var unixTime = dateTime.ToUniversalTime().Ticks / TimeSpan.TicksPerMillisecond - epoch;
+            var value = ((ulong) unixTime - 1420070400000UL) << 22;
+            return value.ToString();
+        }
+    }
+}

DiscordChatExporter.Core/Services/ExportService.Html.cs

@@ -0,0 +1,208 @@
+using System.IO;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using DiscordChatExporter.Core.Models;
+using Tyrrrz.Extensions;
+
+namespace DiscordChatExporter.Core.Services
+{
+    public partial class ExportService
+    {
+        private string FormatMessageContentHtml(Message message)
+        {
+            // A lot of these regexes were inspired by or taken from MarkdownSharp
+
+            var content = message.Content;
+
+            // HTML-encode content
+            content = HtmlEncode(content);
+
+            // Encode multiline codeblocks (```text```)
+            content = Regex.Replace(content,
+                @"```+(?:[^`]*?\n)?([^`]+)\n?```+",
+                m => $"\x1AM{Base64Encode(m.Groups[1].Value)}\x1AM");
+
+            // Encode inline codeblocks (`text`)
+            content = Regex.Replace(content,
+                @"`([^`]+)`",
+                m => $"\x1AI{Base64Encode(m.Groups[1].Value)}\x1AI");
+
+            // Encode URLs
+            content = Regex.Replace(content,
+                @"((https?|ftp)://[-a-zA-Z0-9+&@#/%?=~_|!:,\.\[\]\(\);]*[-a-zA-Z0-9+&@#/%=~_|\[\])])(?=$|\W)",
+                m => $"\x1AL{Base64Encode(m.Groups[1].Value)}\x1AL");
+
+            // Process bold (**text**)
+            content = Regex.Replace(content, @"(\*\*)(?=\S)(.+?[*_]*)(?<=\S)\1", "<b>$2</b>");
+
+            // Process underline (__text__)
+            content = Regex.Replace(content, @"(__)(?=\S)(.+?)(?<=\S)\1", "<u>$2</u>");
+
+            // Process italic (*text* or _text_)
+            content = Regex.Replace(content, @"(\*|_)(?=\S)(.+?)(?<=\S)\1", "<i>$2</i>");
+
+            // Process strike through (~~text~~)
+            content = Regex.Replace(content, @"(~~)(?=\S)(.+?)(?<=\S)\1", "<s>$2</s>");
+
+            // Decode and process multiline codeblocks
+            content = Regex.Replace(content, "\x1AM(.*?)\x1AM",
+                m => $"<div class=\"pre\">{Base64Decode(m.Groups[1].Value)}</div>");
+
+            // Decode and process inline codeblocks
+            content = Regex.Replace(content, "\x1AI(.*?)\x1AI",
+                m => $"<span class=\"pre\">{Base64Decode(m.Groups[1].Value)}</span>");
+
+            // Decode and process URLs
+            content = Regex.Replace(content, "\x1AL(.*?)\x1AL",
+                m => $"<a href=\"{Base64Decode(m.Groups[1].Value)}\">{Base64Decode(m.Groups[1].Value)}</a>");
+
+            // New lines
+            content = content.Replace("\n", "<br />");
+
+            // Meta mentions (@everyone)
+            content = content.Replace("@everyone", "<span class=\"mention\">@everyone</span>");
+
+            // Meta mentions (@here)
+            content = content.Replace("@here", "<span class=\"mention\">@here</span>");
+
+            // User mentions (<@id> and <@!id>)
+            foreach (var mentionedUser in message.MentionedUsers)
+            {
+                content = Regex.Replace(content, $"&lt;@!?{mentionedUser.Id}&gt;",
+                    $"<span class=\"mention\" title=\"{HtmlEncode(mentionedUser.FullName)}\">" +
+                    $"@{HtmlEncode(mentionedUser.Name)}" +
+                    "</span>");
+            }
+
+            // Role mentions (<@&id>)
+            foreach (var mentionedRole in message.MentionedRoles)
+            {
+                content = content.Replace($"&lt;@&amp;{mentionedRole.Id}&gt;",
+                    "<span class=\"mention\">" +
+                    $"@{HtmlEncode(mentionedRole.Name)}" +
+                    "</span>");
+            }
+
+            // Channel mentions (<#id>)
+            foreach (var mentionedChannel in message.MentionedChannels)
+            {
+                content = content.Replace($"&lt;#{mentionedChannel.Id}&gt;",
+                    "<span class=\"mention\">" +
+                    $"#{HtmlEncode(mentionedChannel.Name)}" +
+                    "</span>");
+            }
+
+            // Custom emojis (<:name:id>)
+            content = Regex.Replace(content, "&lt;(:.*?:)(\\d*)&gt;",
+                "<img class=\"emoji\" title=\"$1\" src=\"https://cdn.discordapp.com/emojis/$2.png\" />");
+
+            return content;
+        }
+
+        private async Task ExportAsHtmlAsync(ChannelChatLog log, TextWriter output, string css)
+        {
+            // Generation info
+            await output.WriteLineAsync("<!-- https://github.com/Tyrrrz/DiscordChatExporter -->");
+
+            // Html start
+            await output.WriteLineAsync("<!DOCTYPE html>");
+            await output.WriteLineAsync("<html lang=\"en\">");
+
+            // HEAD
+            await output.WriteLineAsync("<head>");
+            await output.WriteLineAsync($"<title>{log.Guild.Name} - {log.Channel.Name}</title>");
+            await output.WriteLineAsync("<meta charset=\"utf-8\" />");
+            await output.WriteLineAsync("<meta name=\"viewport\" content=\"width=device-width\" />");
+            await output.WriteLineAsync($"<style>{css}</style>");
+            await output.WriteLineAsync("</head>");
+
+            // Body start
+            await output.WriteLineAsync("<body>");
+
+            // Guild and channel info
+            await output.WriteLineAsync("<div id=\"info\">");
+            await output.WriteLineAsync("<div class=\"info-left\">");
+            await output.WriteLineAsync($"<img class=\"guild-icon\" src=\"{log.Guild.IconUrl}\" />");
+            await output.WriteLineAsync("</div>"); // info-left
+            await output.WriteLineAsync("<div class=\"info-right\">");
+            await output.WriteLineAsync($"<div class=\"guild-name\">{log.Guild.Name}</div>");
+            await output.WriteLineAsync($"<div class=\"channel-name\">{log.Channel.Name}</div>");
+            await output.WriteLineAsync($"<div class=\"channel-topic\">{log.Channel.Topic}</div>");
+            await output.WriteLineAsync(
+                $"<div class=\"channel-messagecount\">{log.TotalMessageCount:N0} messages</div>");
+            await output.WriteLineAsync("</div>"); // info-right
+            await output.WriteLineAsync("</div>"); // info
+
+            // Chat log
+            await output.WriteLineAsync("<div id=\"log\">");
+            foreach (var group in log.MessageGroups)
+            {
+                await output.WriteLineAsync("<div class=\"msg\">");
+                await output.WriteLineAsync("<div class=\"msg-left\">");
+                await output.WriteLineAsync($"<img class=\"msg-avatar\" src=\"{group.Author.AvatarUrl}\" />");
+                await output.WriteLineAsync("</div>");
+
+                await output.WriteLineAsync("<div class=\"msg-right\">");
+                await output.WriteAsync(
+                    $"<span class=\"msg-user\" title=\"{HtmlEncode(group.Author.FullName)}\">");
+                await output.WriteAsync(HtmlEncode(group.Author.Name));
+                await output.WriteLineAsync("</span>");
+                var timeStampFormatted = HtmlEncode(group.TimeStamp.ToString(_settingsService.DateFormat));
+                await output.WriteLineAsync($"<span class=\"msg-date\">{timeStampFormatted}</span>");
+
+                // Messages
+                foreach (var message in group.Messages)
+                {
+                    // Content
+                    if (message.Content.IsNotBlank())
+                    {
+                        await output.WriteLineAsync("<div class=\"msg-content\">");
+                        var contentFormatted = FormatMessageContentHtml(message);
+                        await output.WriteAsync(contentFormatted);
+
+                        // Edited timestamp
+                        if (message.EditedTimeStamp != null)
+                        {
+                            var editedTimeStampFormatted =
+                                HtmlEncode(message.EditedTimeStamp.Value.ToString(_settingsService.DateFormat));
+                            await output.WriteAsync(
+                                $"<span class=\"msg-edited\" title=\"{editedTimeStampFormatted}\">(edited)</span>");
+                        }
+
+                        await output.WriteLineAsync("</div>"); // msg-content
+                    }
+
+                    // Attachments
+                    foreach (var attachment in message.Attachments)
+                    {
+                        if (attachment.Type == AttachmentType.Image)
+                        {
+                            await output.WriteLineAsync("<div class=\"msg-attachment\">");
+                            await output.WriteLineAsync($"<a href=\"{attachment.Url}\">");
+                            await output.WriteLineAsync($"<img class=\"msg-attachment\" src=\"{attachment.Url}\" />");
+                            await output.WriteLineAsync("</a>");
+                            await output.WriteLineAsync("</div>");
+                        }
+                        else
+                        {
+                            await output.WriteLineAsync("<div class=\"msg-attachment\">");
+                            await output.WriteLineAsync($"<a href=\"{attachment.Url}\">");
+                            var fileSizeFormatted = FormatFileSize(attachment.FileSize);
+                            await output.WriteLineAsync($"Attachment: {attachment.FileName} ({fileSizeFormatted})");
+                            await output.WriteLineAsync("</a>");
+                            await output.WriteLineAsync("</div>");
+                        }
+                    }
+                }
+
+                await output.WriteLineAsync("</div>"); // msg-right
+                await output.WriteLineAsync("</div>"); // msg
+            }
+
+            await output.WriteLineAsync("</div>"); // log
+
+            await output.WriteLineAsync("</body>");
+            await output.WriteLineAsync("</html>");
+        }
+    }
+}

DiscordChatExporter.Core/Services/ExportService.PlainText.cs

@@ -0,0 +1,79 @@
+using System;
+using System.IO;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using DiscordChatExporter.Core.Models;
+using Tyrrrz.Extensions;
+
+namespace DiscordChatExporter.Core.Services
+{
+    public partial class ExportService
+    {
+        private string FormatMessageContentPlainText(Message message)
+        {
+            var content = message.Content;
+
+            // New lines
+            content = content.Replace("\n", Environment.NewLine);
+
+            // User mentions (<@id> and <@!id>)
+            foreach (var mentionedUser in message.MentionedUsers)
+                content = Regex.Replace(content, $"<@!?{mentionedUser.Id}>", $"@{mentionedUser}");
+
+            // Role mentions (<@&id>)
+            foreach (var mentionedRole in message.MentionedRoles)
+                content = content.Replace($"<@&{mentionedRole.Id}>", $"@{mentionedRole.Name}");
+
+            // Channel mentions (<#id>)
+            foreach (var mentionedChannel in message.MentionedChannels)
+                content = content.Replace($"<#{mentionedChannel.Id}>", $"#{mentionedChannel.Name}");
+
+            // Custom emojis (<:name:id>)
+            content = Regex.Replace(content, "<(:.*?:)\\d*>", "$1");
+
+            return content;
+        }
+
+        private async Task ExportAsPlainTextAsync(ChannelChatLog log, TextWriter output)
+        {
+            // Generation info
+            await output.WriteLineAsync("https://github.com/Tyrrrz/DiscordChatExporter");
+            await output.WriteLineAsync();
+
+            // Guild and channel info
+            await output.WriteLineAsync('='.Repeat(48));
+            await output.WriteLineAsync($"Guild: {log.Guild.Name}");
+            await output.WriteLineAsync($"Channel: {log.Channel.Name}");
+            await output.WriteLineAsync($"Topic: {log.Channel.Topic}");
+            await output.WriteLineAsync($"Messages: {log.TotalMessageCount:N0}");
+            await output.WriteLineAsync('='.Repeat(48));
+            await output.WriteLineAsync();
+
+            // Chat log
+            foreach (var group in log.MessageGroups)
+            {
+                var timeStampFormatted = group.TimeStamp.ToString(_settingsService.DateFormat);
+                await output.WriteLineAsync($"{group.Author.FullName}  [{timeStampFormatted}]");
+
+                // Messages
+                foreach (var message in group.Messages)
+                {
+                    // Content
+                    if (message.Content.IsNotBlank())
+                    {
+                        var contentFormatted = FormatMessageContentPlainText(message);
+                        await output.WriteLineAsync(contentFormatted);
+                    }
+
+                    // Attachments
+                    foreach (var attachment in message.Attachments)
+                    {
+                        await output.WriteLineAsync(attachment.Url);
+                    }
+                }
+
+                await output.WriteLineAsync();
+            }
+        }
+    }
+}

DiscordChatExporter.Core/Services/ExportService.cs

@@ -0,0 +1,81 @@
+using System;
+using System.IO;
+using System.Net;
+using System.Reflection;
+using System.Threading.Tasks;
+using DiscordChatExporter.Core.Internal;
+using DiscordChatExporter.Core.Models;
+using Tyrrrz.Extensions;
+
+namespace DiscordChatExporter.Core.Services
+{
+    public partial class ExportService : IExportService
+    {
+        private readonly ISettingsService _settingsService;
+
+        public ExportService(ISettingsService settingsService)
+        {
+            _settingsService = settingsService;
+        }
+
+        public async Task ExportAsync(ExportFormat format, string filePath, ChannelChatLog log)
+        {
+            using (var output = File.CreateText(filePath))
+            {
+                if (format == ExportFormat.PlainText)
+                {
+                    await ExportAsPlainTextAsync(log, output);
+                }
+
+                else if (format == ExportFormat.HtmlDark)
+                {
+                    var css = Assembly.GetExecutingAssembly()
+                        .GetManifestResourceString("DiscordChatExporter.Core.Resources.ExportService.DarkTheme.css");
+                    await ExportAsHtmlAsync(log, output, css);
+                }
+
+                else if (format == ExportFormat.HtmlLight)
+                {
+                    var css = Assembly.GetExecutingAssembly()
+                        .GetManifestResourceString("DiscordChatExporter.Core.Resources.ExportService.LightTheme.css");
+                    await ExportAsHtmlAsync(log, output, css);
+                }
+
+                else throw new ArgumentOutOfRangeException(nameof(format));
+            }
+        }
+    }
+
+    public partial class ExportService
+    {
+        private static string Base64Encode(string str)
+        {
+            return str.GetBytes().ToBase64();
+        }
+
+        private static string Base64Decode(string str)
+        {
+            return str.FromBase64().GetString();
+        }
+
+        private static string HtmlEncode(string str)
+        {
+            return WebUtility.HtmlEncode(str);
+        }
+
+        private static string FormatFileSize(long fileSize)
+        {
+            string[] units = {"B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"};
+            double size = fileSize;
+            var unit = 0;
+
+            while (size >= 1024)
+            {
+                size /= 1024;
+                ++unit;
+            }
+
+            return $"{size:0.#} {units[unit]}";
+        }
+    }
+}

DiscordChatExporter.Core/Services/IDataService.cs

@@ -1,18 +1,22 @@
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 
-namespace DiscordChatExporter.Services
+namespace DiscordChatExporter.Core.Services
 {
     public interface IDataService
     {
-        Task<IReadOnlyList<Guild>> GetGuildsAsync(string token);
+        Task<Guild> GetGuildAsync(string token, string guildId);
 
-        Task<IReadOnlyList<Channel>> GetDirectMessageChannelsAsync(string token);
+        Task<Channel> GetChannelAsync(string token, string channelId);
 
         Task<IReadOnlyList<Channel>> GetGuildChannelsAsync(string token, string guildId);
 
+        Task<IReadOnlyList<Guild>> GetUserGuildsAsync(string token);
+
+        Task<IReadOnlyList<Channel>> GetDirectMessageChannelsAsync(string token);
+
         Task<IReadOnlyList<Message>> GetChannelMessagesAsync(string token, string channelId,
             DateTime? from, DateTime? to);
     }

DiscordChatExporter.Core/Services/IExportService.cs

@@ -1,7 +1,7 @@
 using System.Threading.Tasks;
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 
-namespace DiscordChatExporter.Services
+namespace DiscordChatExporter.Core.Services
 {
     public interface IExportService
     {

DiscordChatExporter.Core/Services/IMessageGroupService.cs

@@ -1,7 +1,7 @@
 using System.Collections.Generic;
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 
-namespace DiscordChatExporter.Services
+namespace DiscordChatExporter.Core.Services
 {
     public interface IMessageGroupService
     {

DiscordChatExporter.Core/Services/ISettingsService.cs

@@ -1,9 +1,11 @@
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 
-namespace DiscordChatExporter.Services
+namespace DiscordChatExporter.Core.Services
 {
     public interface ISettingsService
     {
+        bool IsAutoUpdateEnabled { get; set; }
+
         string DateFormat { get; set; }
         int MessageGroupLimit { get; set; }
 

DiscordChatExporter.Core/Services/IUpdateService.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Threading.Tasks;
+
+namespace DiscordChatExporter.Core.Services
+{
+    public interface IUpdateService
+    {
+        bool NeedRestart { get; set; }
+
+        Task<Version> CheckPrepareUpdateAsync();
+
+        void FinalizeUpdate();
+    }
+}

DiscordChatExporter.Core/Services/MessageGroupService.cs

@@ -1,8 +1,8 @@
 using System.Collections.Generic;
 using System.Linq;
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 
-namespace DiscordChatExporter.Services
+namespace DiscordChatExporter.Core.Services
 {
     public class MessageGroupService : IMessageGroupService
     {

DiscordChatExporter.Core/Services/SettingsService.cs

@@ -1,10 +1,12 @@
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 using Tyrrrz.Settings;
 
-namespace DiscordChatExporter.Services
+namespace DiscordChatExporter.Core.Services
 {
     public class SettingsService : SettingsManager, ISettingsService
     {
+        public bool IsAutoUpdateEnabled { get; set; } = true;
+
         public string DateFormat { get; set; } = "dd-MMM-yy hh:mm tt";
         public int MessageGroupLimit { get; set; } = 20;
 

DiscordChatExporter.Core/Services/UpdateService.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Threading.Tasks;
+using Onova;
+using Onova.Services;
+
+namespace DiscordChatExporter.Core.Services
+{
+    public class UpdateService : IUpdateService
+    {
+        private readonly ISettingsService _settingsService;
+        private readonly IUpdateManager _manager;
+
+        private Version _updateVersion;
+        private bool _updateFinalized;
+
+        public bool NeedRestart { get; set; }
+
+        public UpdateService(ISettingsService settingsService)
+        {
+            _settingsService = settingsService;
+
+            _manager = new UpdateManager(
+                new GithubPackageResolver("Tyrrrz", "DiscordChatExporter", "DiscordChatExporter.zip"),
+                new ZipPackageExtractor());
+        }
+
+        public async Task<Version> CheckPrepareUpdateAsync()
+        {
+            // If auto-update is disabled - don't check for updates
+            if (!_settingsService.IsAutoUpdateEnabled)
+                return null;
+
+            // Cleanup leftover files
+            _manager.Cleanup();
+
+            // Check for updates
+            var check = await _manager.CheckForUpdatesAsync();
+            if (!check.CanUpdate)
+                return null;
+
+            // Prepare the update
+            if (!_manager.IsUpdatePrepared(check.LastVersion))
+                await _manager.PrepareUpdateAsync(check.LastVersion);
+
+            return _updateVersion = check.LastVersion;
+        }
+
+        public void FinalizeUpdate()
+        {
+            // Check if an update is pending
+            if (_updateVersion == null)
+                return;
+
+            // Check if the update has already been finalized
+            if (_updateFinalized)
+                return;
+
+            // Launch the updater
+            _manager.LaunchUpdater(_updateVersion, NeedRestart);
+            _updateFinalized = true;
+        }
+    }
+}

DiscordChatExporter.Gui/App.ammy

@@ -1,4 +1,4 @@
-Application "DiscordChatExporter.App" {
+Application "DiscordChatExporter.Gui.App" {
   StartupUri: "Views/MainWindow.g.xaml"
   Startup: App_Startup
   Exit: App_Exit

DiscordChatExporter.Gui/App.ammy.cs

@@ -1,9 +1,11 @@
 using System.Windows;
 
-namespace DiscordChatExporter
+namespace DiscordChatExporter.Gui
 {
     public partial class App
     {
+        private Container Container => (Container) Resources["Container"];
+
         private void App_Startup(object sender, StartupEventArgs e)
         {
             Container.Init();

DiscordChatExporter.Gui/Container.cs

@@ -0,0 +1,41 @@
+using CommonServiceLocator;
+using DiscordChatExporter.Core.Services;
+using DiscordChatExporter.Gui.ViewModels;
+using GalaSoft.MvvmLight.Ioc;
+
+namespace DiscordChatExporter.Gui
+{
+    public class Container
+    {
+        public IExportSetupViewModel ExportSetupViewModel => Resolve<IExportSetupViewModel>();
+        public IMainViewModel MainViewModel => Resolve<IMainViewModel>();
+        public ISettingsViewModel SettingsViewModel => Resolve<ISettingsViewModel>();
+
+        private T Resolve<T>(string key = null)
+        {
+            return ServiceLocator.Current.GetInstance<T>(key);
+        }
+
+        public void Init()
+        {
+            ServiceLocator.SetLocatorProvider(() => SimpleIoc.Default);
+            SimpleIoc.Default.Reset();
+
+            // Services
+            SimpleIoc.Default.Register<IDataService, DataService>();
+            SimpleIoc.Default.Register<IExportService, ExportService>();
+            SimpleIoc.Default.Register<IMessageGroupService, MessageGroupService>();
+            SimpleIoc.Default.Register<ISettingsService, SettingsService>();
+            SimpleIoc.Default.Register<IUpdateService, UpdateService>();
+
+            // View models
+            SimpleIoc.Default.Register<IExportSetupViewModel, ExportSetupViewModel>(true);
+            SimpleIoc.Default.Register<IMainViewModel, MainViewModel>(true);
+            SimpleIoc.Default.Register<ISettingsViewModel, SettingsViewModel>(true);
+        }
+
+        public void Cleanup()
+        {
+        }
+    }
+}

DiscordChatExporter.Gui/DiscordChatExporter.Gui.csproj

@@ -6,7 +6,7 @@
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{732A67AF-93DE-49DF-B10F-FD74710B7863}</ProjectGuid>
     <OutputType>WinExe</OutputType>
-    <RootNamespace>DiscordChatExporter</RootNamespace>
+    <RootNamespace>DiscordChatExporter.Gui</RootNamespace>
     <AssemblyName>DiscordChatExporter</AssemblyName>
     <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
@@ -35,79 +35,62 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup>
+    <ApplicationIcon>..\favicon.ico</ApplicationIcon>
+  </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject />
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="AmmySidekick, Version=1.0.0.0, Culture=neutral, PublicKeyToken=7c1296d24569a67d, processorArchitecture=MSIL">
-      <HintPath>..\packages\Ammy.WPF.1.2.87\lib\net40\AmmySidekick.dll</HintPath>
+      <HintPath>..\packages\Ammy.WPF.1.2.94\lib\net40\AmmySidekick.dll</HintPath>
     </Reference>
-    <Reference Include="GalaSoft.MvvmLight, Version=5.3.0.19026, Culture=neutral, PublicKeyToken=e7570ab207bcb616, processorArchitecture=MSIL">
-      <HintPath>..\packages\MvvmLightLibs.5.3.0.0\lib\net45\GalaSoft.MvvmLight.dll</HintPath>
+    <Reference Include="CommonServiceLocator, Version=2.0.3.0, Culture=neutral, PublicKeyToken=489b6accfaf20ef0, processorArchitecture=MSIL">
+      <HintPath>..\packages\CommonServiceLocator.2.0.3\lib\net45\CommonServiceLocator.dll</HintPath>
     </Reference>
-    <Reference Include="GalaSoft.MvvmLight.Extras, Version=5.3.0.19032, Culture=neutral, PublicKeyToken=669f0b5e8f868abf, processorArchitecture=MSIL">
-      <HintPath>..\packages\MvvmLightLibs.5.3.0.0\lib\net45\GalaSoft.MvvmLight.Extras.dll</HintPath>
+    <Reference Include="GalaSoft.MvvmLight, Version=5.4.1.0, Culture=neutral, PublicKeyToken=e7570ab207bcb616, processorArchitecture=MSIL">
+      <HintPath>..\packages\MvvmLightLibs.5.4.1\lib\net45\GalaSoft.MvvmLight.dll</HintPath>
     </Reference>
-    <Reference Include="GalaSoft.MvvmLight.Platform, Version=5.3.0.19032, Culture=neutral, PublicKeyToken=5f873c45e98af8a1, processorArchitecture=MSIL">
-      <HintPath>..\packages\MvvmLightLibs.5.3.0.0\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
+    <Reference Include="GalaSoft.MvvmLight.Extras, Version=5.4.1.0, Culture=neutral, PublicKeyToken=669f0b5e8f868abf, processorArchitecture=MSIL">
+      <HintPath>..\packages\MvvmLightLibs.5.4.1\lib\net45\GalaSoft.MvvmLight.Extras.dll</HintPath>
+    </Reference>
+    <Reference Include="GalaSoft.MvvmLight.Platform, Version=5.4.1.0, Culture=neutral, PublicKeyToken=5f873c45e98af8a1, processorArchitecture=MSIL">
+      <HintPath>..\packages\MvvmLightLibs.5.4.1\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
     </Reference>
     <Reference Include="MaterialDesignColors, Version=1.1.3.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\MaterialDesignColors.1.1.3\lib\net45\MaterialDesignColors.dll</HintPath>
     </Reference>
-    <Reference Include="MaterialDesignThemes.Wpf, Version=2.3.1.953, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\MaterialDesignThemes.2.3.1.953\lib\net45\MaterialDesignThemes.Wpf.dll</HintPath>
-    </Reference>
-    <Reference Include="Microsoft.Practices.ServiceLocation, Version=1.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <HintPath>..\packages\CommonServiceLocator.1.3\lib\portable-net4+sl5+netcore45+wpa81+wp8\Microsoft.Practices.ServiceLocation.dll</HintPath>
-    </Reference>
-    <Reference Include="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="MaterialDesignThemes.Wpf, Version=2.4.0.1044, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\MaterialDesignThemes.2.4.0.1044\lib\net45\MaterialDesignThemes.Wpf.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
-    <Reference Include="System.Net.Http" />
     <Reference Include="System.Windows.Interactivity, Version=4.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <HintPath>..\packages\MvvmLightLibs.5.3.0.0\lib\net45\System.Windows.Interactivity.dll</HintPath>
+      <HintPath>..\packages\MvvmLightLibs.5.4.1\lib\net45\System.Windows.Interactivity.dll</HintPath>
     </Reference>
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>
     </Reference>
-    <Reference Include="System.Xml" />
-    <Reference Include="Tyrrrz.Extensions, Version=1.4.1.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\Tyrrrz.Extensions.1.4.1\lib\net45\Tyrrrz.Extensions.dll</HintPath>
-    </Reference>
-    <Reference Include="Tyrrrz.Settings, Version=1.3.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\Tyrrrz.Settings.1.3.0\lib\net45\Tyrrrz.Settings.dll</HintPath>
+    <Reference Include="Tyrrrz.Extensions, Version=1.5.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\Tyrrrz.Extensions.1.5.0\lib\net45\Tyrrrz.Extensions.dll</HintPath>
     </Reference>
+    <Reference Include="Tyrrrz.Settings, Version=1.3.2.0, Culture=neutral, PublicKeyToken=null" />
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="Exceptions\HttpErrorStatusCodeException.cs" />
-    <Compile Include="Messages\ShowErrorMessage.cs" />
-    <Compile Include="Messages\ShowExportDoneMessage.cs" />
     <Compile Include="Messages\ShowExportSetupMessage.cs" />
+    <Compile Include="Messages\ShowNotificationMessage.cs" />
     <Compile Include="Messages\ShowSettingsMessage.cs" />
     <Compile Include="Messages\StartExportMessage.cs" />
-    <Compile Include="Models\AttachmentType.cs" />
-    <Compile Include="Models\ChannelChatLog.cs" />
-    <Compile Include="Models\ChannelType.cs" />
-    <Compile Include="Models\ExportFormat.cs" />
-    <Compile Include="Models\Extensions.cs" />
-    <Compile Include="Services\IMessageGroupService.cs" />
-    <Compile Include="Services\MessageGroupService.cs" />
-    <Compile Include="ViewModels\ErrorViewModel.cs" />
     <Compile Include="ViewModels\ExportSetupViewModel.cs" />
-    <Compile Include="ViewModels\IErrorViewModel.cs" />
     <Compile Include="ViewModels\IExportSetupViewModel.cs" />
     <Compile Include="ViewModels\ISettingsViewModel.cs" />
-    <Compile Include="ViewModels\IExportDoneViewModel.cs" />
     <Compile Include="ViewModels\SettingsViewModel.cs" />
-    <Compile Include="ViewModels\ExportDoneViewModel.cs" />
     <Compile Include="Views\ErrorDialog.ammy.cs">
       <DependentUpon>ErrorDialog.ammy</DependentUpon>
     </Compile>
-    <Compile Include="Views\ExportDoneDialog.ammy.cs">
-      <DependentUpon>ExportDoneDialog.ammy</DependentUpon>
-    </Compile>
     <Compile Include="Views\ExportSetupDialog.ammy.cs">
       <DependentUpon>ExportSetupDialog.ammy</DependentUpon>
     </Compile>
@@ -124,11 +107,6 @@
       <Generator>MSBuild:Compile</Generator>
       <DependentUpon>ErrorDialog.ammy</DependentUpon>
     </Page>
-    <Page Include="Views\ExportDoneDialog.g.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-      <DependentUpon>ExportDoneDialog.ammy</DependentUpon>
-    </Page>
     <Page Include="Views\ExportSetupDialog.g.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
@@ -143,19 +121,7 @@
       <DependentUpon>App.ammy</DependentUpon>
     </Compile>
     <Compile Include="Container.cs" />
-    <Compile Include="Models\Attachment.cs" />
-    <Compile Include="Models\Channel.cs" />
-    <Compile Include="Models\Guild.cs" />
-    <Compile Include="Models\Message.cs" />
-    <Compile Include="Models\MessageGroup.cs" />
-    <Compile Include="Models\User.cs" />
     <Compile Include="Program.cs" />
-    <Compile Include="Services\DataService.cs" />
-    <Compile Include="Services\ExportService.cs" />
-    <Compile Include="Services\IDataService.cs" />
-    <Compile Include="Services\IExportService.cs" />
-    <Compile Include="Services\ISettingsService.cs" />
-    <Compile Include="Services\SettingsService.cs" />
     <Compile Include="ViewModels\IMainViewModel.cs" />
     <Compile Include="ViewModels\MainViewModel.cs" />
     <Compile Include="Views\MainWindow.ammy.cs">
@@ -181,29 +147,31 @@
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>
     </EmbeddedResource>
     <None Include="App.ammy" />
+    <None Include="app.config" />
     <None Include="lib.ammy" />
     <None Include="packages.config">
       <SubType>Designer</SubType>
     </None>
     <None Include="Views\ErrorDialog.ammy" />
-    <None Include="Views\ExportDoneDialog.ammy" />
     <None Include="Views\ExportSetupDialog.ammy" />
     <None Include="Views\MainWindow.ammy" />
     <None Include="Views\SettingsDialog.ammy" />
   </ItemGroup>
   <ItemGroup>
-    <None Include="App.config" />
+    <Resource Include="..\favicon.ico" />
   </ItemGroup>
   <ItemGroup>
-    <EmbeddedResource Include="Resources\ExportService\DarkTheme.css" />
-    <EmbeddedResource Include="Resources\ExportService\LightTheme.css" />
+    <ProjectReference Include="..\DiscordChatExporter.Core\DiscordChatExporter.Core.csproj">
+      <Project>{707c0cd0-a7e0-4cab-8db9-07a45cb87377}</Project>
+      <Name>DiscordChatExporter.Core</Name>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <Import Project="..\packages\Ammy.1.2.87\build\Ammy.targets" Condition="Exists('..\packages\Ammy.1.2.87\build\Ammy.targets')" />
+  <Import Project="..\packages\Ammy.1.2.94\build\Ammy.targets" Condition="Exists('..\packages\Ammy.1.2.94\build\Ammy.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\Ammy.1.2.87\build\Ammy.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Ammy.1.2.87\build\Ammy.targets'))" />
+    <Error Condition="!Exists('..\packages\Ammy.1.2.94\build\Ammy.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Ammy.1.2.94\build\Ammy.targets'))" />
   </Target>
 </Project>

DiscordChatExporter.Gui/Messages/ShowExportSetupMessage.cs

@@ -1,6 +1,6 @@
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 
-namespace DiscordChatExporter.Messages
+namespace DiscordChatExporter.Gui.Messages
 {
     public class ShowExportSetupMessage
     {

DiscordChatExporter.Gui/Messages/ShowNotificationMessage.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace DiscordChatExporter.Gui.Messages
+{
+    public class ShowNotificationMessage
+    {
+        public string Message { get; }
+
+        public string CallbackCaption { get; }
+
+        public Action Callback { get; }
+
+        public ShowNotificationMessage(string message)
+        {
+            Message = message;
+        }
+
+        public ShowNotificationMessage(string message, string callbackCaption, Action callback)
+            : this(message)
+        {
+            CallbackCaption = callbackCaption;
+            Callback = callback;
+        }
+    }
+}

DiscordChatExporter.Gui/Messages/ShowSettingsMessage.cs

@@ -1,4 +1,4 @@
-namespace DiscordChatExporter.Messages
+namespace DiscordChatExporter.Gui.Messages
 {
     public class ShowSettingsMessage
     {

DiscordChatExporter.Gui/Messages/StartExportMessage.cs

@@ -1,7 +1,7 @@
 using System;
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 
-namespace DiscordChatExporter.Messages
+namespace DiscordChatExporter.Gui.Messages
 {
     public class StartExportMessage
     {

DiscordChatExporter.Gui/Program.cs

@@ -0,0 +1,17 @@
+using System;
+using AmmySidekick;
+
+namespace DiscordChatExporter.Gui
+{
+    public static class Program
+    {
+        [STAThread]
+        public static void Main()
+        {
+            var app = new App();
+            app.InitializeComponent();
+            RuntimeUpdateHandler.Register(app, $"/{Ammy.GetAssemblyName(app)};component/App.g.xaml");
+            app.Run();
+        }
+    }
+}

DiscordChatExporter.Gui/Properties/AssemblyInfo.cs

@@ -0,0 +1,7 @@
+using System.Reflection;
+
+[assembly: AssemblyTitle("DiscordChatExporter")]
+[assembly: AssemblyCompany("Tyrrrz")]
+[assembly: AssemblyCopyright("Copyright (c) 2017-2018 Alexey Golub")]
+[assembly: AssemblyVersion("2.4")]
+[assembly: AssemblyFileVersion("2.4")]

DiscordChatExporter.Gui/Properties/Resources.Designer.cs

@@ -8,10 +8,10 @@
 // </auto-generated>
 //------------------------------------------------------------------------------
 
-namespace DiscordChatExporter.Properties
-{
-
-
+namespace DiscordChatExporter.Gui.Properties {
+    using System;
+    
+    
     /// <summary>
     ///   A strongly-typed resource class, for looking up localized strings, etc.
     /// </summary>
@@ -19,51 +19,43 @@ namespace DiscordChatExporter.Properties
     // class via a tool like ResGen or Visual Studio.
     // To add or remove a member, edit your .ResX file then rerun ResGen
     // with the /str option, or rebuild your VS project.
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0")]
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    internal class Resources
-    {
-
+    internal class Resources {
+        
         private static global::System.Resources.ResourceManager resourceMan;
-
+        
         private static global::System.Globalization.CultureInfo resourceCulture;
-
+        
         [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
-        internal Resources()
-        {
+        internal Resources() {
         }
-
+        
         /// <summary>
         ///   Returns the cached ResourceManager instance used by this class.
         /// </summary>
         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
-        internal static global::System.Resources.ResourceManager ResourceManager
-        {
-            get
-            {
-                if ((resourceMan == null))
-                {
-                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("DiscordChatExporter.Properties.Resources", typeof(Resources).Assembly);
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("DiscordChatExporter.Gui.Properties.Resources", typeof(Resources).Assembly);
                     resourceMan = temp;
                 }
                 return resourceMan;
             }
         }
-
+        
         /// <summary>
         ///   Overrides the current thread's CurrentUICulture property for all
         ///   resource lookups using this strongly typed resource class.
         /// </summary>
         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
-        internal static global::System.Globalization.CultureInfo Culture
-        {
-            get
-            {
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
                 return resourceCulture;
             }
-            set
-            {
+            set {
                 resourceCulture = value;
             }
         }

DiscordChatExporter.Gui/ViewModels/ExportSetupViewModel.cs

@@ -2,14 +2,14 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using DiscordChatExporter.Messages;
-using DiscordChatExporter.Models;
-using DiscordChatExporter.Services;
+using DiscordChatExporter.Core.Models;
+using DiscordChatExporter.Core.Services;
+using DiscordChatExporter.Gui.Messages;
 using GalaSoft.MvvmLight;
 using GalaSoft.MvvmLight.CommandWpf;
 using Tyrrrz.Extensions;
 
-namespace DiscordChatExporter.ViewModels
+namespace DiscordChatExporter.Gui.ViewModels
 {
     public class ExportSetupViewModel : ViewModelBase, IExportSetupViewModel
     {
@@ -81,7 +81,7 @@ namespace DiscordChatExporter.ViewModels
                 Guild = m.Guild;
                 Channel = m.Channel;
                 SelectedFormat = _settingsService.LastExportFormat;
-                FilePath = $"{Guild} - {Channel}.{SelectedFormat.GetFileExtension()}"
+                FilePath = $"{Guild.Name} - {Channel.Name}.{SelectedFormat.GetFileExtension()}"
                     .Replace(Path.GetInvalidFileNameChars(), '_');
                 From = null;
                 To = null;

DiscordChatExporter.Gui/ViewModels/IExportSetupViewModel.cs

@@ -1,9 +1,9 @@
 using System;
 using System.Collections.Generic;
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 using GalaSoft.MvvmLight.CommandWpf;
 
-namespace DiscordChatExporter.ViewModels
+namespace DiscordChatExporter.Gui.ViewModels
 {
     public interface IExportSetupViewModel
     {

DiscordChatExporter.Gui/ViewModels/IMainViewModel.cs

@@ -1,8 +1,8 @@
 using System.Collections.Generic;
-using DiscordChatExporter.Models;
+using DiscordChatExporter.Core.Models;
 using GalaSoft.MvvmLight.CommandWpf;
 
-namespace DiscordChatExporter.ViewModels
+namespace DiscordChatExporter.Gui.ViewModels
 {
     public interface IMainViewModel
     {
@@ -15,6 +15,8 @@ namespace DiscordChatExporter.ViewModels
         Guild SelectedGuild { get; set; }
         IReadOnlyList<Channel> AvailableChannels { get; }
 
+        RelayCommand ViewLoadedCommand { get; }
+        RelayCommand ViewClosedCommand { get; }
         RelayCommand PullDataCommand { get; }
         RelayCommand ShowSettingsCommand { get; }
         RelayCommand ShowAboutCommand { get; }

DiscordChatExporter.Gui/ViewModels/ISettingsViewModel.cs

@@ -1,7 +1,9 @@
-namespace DiscordChatExporter.ViewModels
+namespace DiscordChatExporter.Gui.ViewModels
 {
     public interface ISettingsViewModel
     {
+        bool IsAutoUpdateEnabled { get; set; }
+
         string DateFormat { get; set; }
         int MessageGroupLimit { get; set; }
     }

DiscordChatExporter.Gui/ViewModels/MainViewModel.cs

@@ -3,19 +3,21 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
 using System.Net;
-using DiscordChatExporter.Exceptions;
-using DiscordChatExporter.Messages;
-using DiscordChatExporter.Models;
-using DiscordChatExporter.Services;
+using System.Windows;
+using DiscordChatExporter.Core.Exceptions;
+using DiscordChatExporter.Core.Models;
+using DiscordChatExporter.Core.Services;
+using DiscordChatExporter.Gui.Messages;
 using GalaSoft.MvvmLight;
 using GalaSoft.MvvmLight.CommandWpf;
 using Tyrrrz.Extensions;
 
-namespace DiscordChatExporter.ViewModels
+namespace DiscordChatExporter.Gui.ViewModels
 {
     public class MainViewModel : ViewModelBase, IMainViewModel
     {
         private readonly ISettingsService _settingsService;
+        private readonly IUpdateService _updateService;
         private readonly IDataService _dataService;
         private readonly IMessageGroupService _messageGroupService;
         private readonly IExportService _exportService;
@@ -81,15 +83,18 @@ namespace DiscordChatExporter.ViewModels
             private set => Set(ref _availableChannels, value);
         }
 
+        public RelayCommand ViewLoadedCommand { get; }
+        public RelayCommand ViewClosedCommand { get; }
         public RelayCommand PullDataCommand { get; }
         public RelayCommand ShowSettingsCommand { get; }
         public RelayCommand ShowAboutCommand { get; }
         public RelayCommand<Channel> ShowExportSetupCommand { get; }
 
-        public MainViewModel(ISettingsService settingsService, IDataService dataService,
+        public MainViewModel(ISettingsService settingsService, IUpdateService updateService, IDataService dataService,
             IMessageGroupService messageGroupService, IExportService exportService)
         {
             _settingsService = settingsService;
+            _updateService = updateService;
             _dataService = dataService;
             _messageGroupService = messageGroupService;
             _exportService = exportService;
@@ -97,19 +102,54 @@ namespace DiscordChatExporter.ViewModels
             _guildChannelsMap = new Dictionary<Guild, IReadOnlyList<Channel>>();
 
             // Commands
+            ViewLoadedCommand = new RelayCommand(ViewLoaded);
+            ViewClosedCommand = new RelayCommand(ViewClosed);
             PullDataCommand = new RelayCommand(PullData, () => Token.IsNotBlank() && !IsBusy);
             ShowSettingsCommand = new RelayCommand(ShowSettings);
             ShowAboutCommand = new RelayCommand(ShowAbout);
             ShowExportSetupCommand = new RelayCommand<Channel>(ShowExportSetup, _ => !IsBusy);
 
             // Messages
-            MessengerInstance.Register<StartExportMessage>(this, m =>
-            {
-                Export(m.Channel, m.FilePath, m.Format, m.From, m.To);
-            });
+            MessengerInstance.Register<StartExportMessage>(this,
+                m => Export(m.Channel, m.FilePath, m.Format, m.From, m.To));
+        }
 
-            // Defaults
-            _token = _settingsService.LastToken;
+        private async void ViewLoaded()
+        {
+            // Load settings
+            _settingsService.Load();
+
+            // Set last token
+            Token = _settingsService.LastToken;
+
+            // Check and prepare update
+            try
+            {
+                var updateVersion = await _updateService.CheckPrepareUpdateAsync();
+                if (updateVersion != null)
+                {
+                    MessengerInstance.Send(new ShowNotificationMessage(
+                        $"Update to DiscordChatExporter v{updateVersion} will be installed when you exit",
+                        "INSTALL NOW", () =>
+                        {
+                            _updateService.NeedRestart = true;
+                            Application.Current.Shutdown();
+                        }));
+                }
+            }
+            catch
+            {
+                MessengerInstance.Send(new ShowNotificationMessage("Failed to perform application auto-update"));
+            }
+        }
+
+        private void ViewClosed()
+        {
+            // Save settings
+            _settingsService.Save();
+
+            // Finalize updates if available
+            _updateService.FinalizeUpdate();
         }
 
         private async void PullData()
@@ -130,13 +170,13 @@ namespace DiscordChatExporter.ViewModels
                 // Get DM channels
                 {
                     var channels = await _dataService.GetDirectMessageChannelsAsync(token);
-                    var guild = new Guild("@me", "Direct Messages", null);
+                    var guild = Guild.DirectMessages;
                     _guildChannelsMap[guild] = channels.ToArray();
                 }
 
                 // Get guild channels
                 {
-                    var guilds = await _dataService.GetGuildsAsync(token);
+                    var guilds = await _dataService.GetUserGuildsAsync(token);
                     foreach (var guild in guilds)
                     {
                         var channels = await _dataService.GetGuildChannelsAsync(token, guild.Id);
@@ -146,13 +186,11 @@ namespace DiscordChatExporter.ViewModels
             }
             catch (HttpErrorStatusCodeException ex) when (ex.StatusCode == HttpStatusCode.Unauthorized)
             {
-                const string message = "Unauthorized to perform request. Make sure token is valid.";
-                MessengerInstance.Send(new ShowErrorMessage(message));
+                MessengerInstance.Send(new ShowNotificationMessage("Unauthorized – make sure the token is valid"));
             }
             catch (HttpErrorStatusCodeException ex) when (ex.StatusCode == HttpStatusCode.Forbidden)
             {
-                const string message = "Forbidden to perform request. The account may be locked by 2FA.";
-                MessengerInstance.Send(new ShowErrorMessage(message));
+                MessengerInstance.Send(new ShowNotificationMessage("Forbidden – account may be locked by 2FA"));
             }
 
             AvailableGuilds = _guildChannelsMap.Keys.ToArray();
@@ -197,12 +235,12 @@ namespace DiscordChatExporter.ViewModels
                 await _exportService.ExportAsync(format, filePath, log);
 
                 // Notify completion
-                MessengerInstance.Send(new ShowExportDoneMessage(filePath));
+                MessengerInstance.Send(new ShowNotificationMessage("Export complete",
+                    "OPEN", () => Process.Start(filePath)));
             }
             catch (HttpErrorStatusCodeException ex) when (ex.StatusCode == HttpStatusCode.Forbidden)
             {
-                const string message = "Forbidden to view messages in that channel.";
-                MessengerInstance.Send(new ShowErrorMessage(message));
+                MessengerInstance.Send(new ShowNotificationMessage("You don't have access to this channel"));
             }
 
             IsBusy = false;

DiscordChatExporter.Gui/ViewModels/SettingsViewModel.cs

@@ -1,13 +1,19 @@
-using DiscordChatExporter.Services;
+using DiscordChatExporter.Core.Services;
 using GalaSoft.MvvmLight;
 using Tyrrrz.Extensions;
 
-namespace DiscordChatExporter.ViewModels
+namespace DiscordChatExporter.Gui.ViewModels
 {
     public class SettingsViewModel : ViewModelBase, ISettingsViewModel
     {
         private readonly ISettingsService _settingsService;
 
+        public bool IsAutoUpdateEnabled
+        {
+            get => _settingsService.IsAutoUpdateEnabled;
+            set => _settingsService.IsAutoUpdateEnabled = value;
+        }
+
         public string DateFormat
         {
             get => _settingsService.DateFormat;

DiscordChatExporter.Gui/Views/ErrorDialog.ammy

@@ -0,0 +1,27 @@
+using MaterialDesignThemes.Wpf
+
+UserControl "DiscordChatExporter.Gui.Views.ErrorDialog" {
+  DataContext: bind ErrorViewModel from $resource Container
+  Width: 250
+
+  StackPanel {
+    // Message
+    TextBlock {
+      Margin: 16
+      FontSize: 16
+      TextWrapping: WrapWithOverflow
+      Text: bind Message
+    }
+
+    // OK
+    Button {
+      Margin: 8
+      Command: DialogHost.CloseDialogCommand
+      Content: "OK"
+      HorizontalAlignment: Right
+      IsDefault: true
+      IsCancel: true
+      Style: resource dyn "MaterialDesignFlatButton"
+    }
+  }
+}

DiscordChatExporter.Gui/Views/ErrorDialog.ammy.cs

@@ -1,4 +1,4 @@
-namespace DiscordChatExporter.Views
+namespace DiscordChatExporter.Gui.Views
 {
     public partial class ErrorDialog
     {

DiscordChatExporter.Gui/Views/ExportSetupDialog.ammy

@@ -1,14 +1,14 @@
-using DiscordChatExporter.Models
+using DiscordChatExporter.Core.Models
 using MaterialDesignThemes.Wpf
 
-UserControl "DiscordChatExporter.Views.ExportSetupDialog" {
+UserControl "DiscordChatExporter.Gui.Views.ExportSetupDialog" {
   DataContext: bind ExportSetupViewModel from $resource Container
   Width: 325
 
   StackPanel {
     // File path
     TextBox {
-      Margin: "16 16 16 8"
+      Margin: [16, 16, 16, 8]
       HintAssist.Hint: "Output file"
       HintAssist.IsFloating: true
       IsReadOnly: true
@@ -18,18 +18,19 @@ UserControl "DiscordChatExporter.Views.ExportSetupDialog" {
 
     // Format
     ComboBox {
-      Margin: "16 8 16 8"
+      Margin: [16, 8, 16, 8]
       HintAssist.Hint: "Export format"
       HintAssist.IsFloating: true
       IsReadOnly: true
       ItemsSource: bind AvailableFormats
+      SelectedItem: bind SelectedFormat
+
       ItemTemplate: DataTemplate {
         TextBlock {
           Text: bind
                 convert (ExportFormat f) => Extensions.GetDisplayName(f)
         }
       }
-      SelectedItem: bind SelectedFormat
     }
 
     // Date range
@@ -37,16 +38,16 @@ UserControl "DiscordChatExporter.Views.ExportSetupDialog" {
       #TwoColumns("*", "*")
 
       DatePicker {
-        Grid.Column: 0
-        Margin: "16 20 8 8"
+        #Cell(0, 0)
+        Margin: [16, 20, 8, 8]
         HintAssist.Hint: "From (optional)"
         HintAssist.IsFloating: true
         SelectedDate: bind From
       }
 
       DatePicker {
-        Grid.Column: 1
-        Margin: "8 20 16 8"
+        #Cell(0, 1)
+        Margin: [8, 20, 16, 8]
         HintAssist.Hint: "To (optional)"
         HintAssist.IsFloating: true
         SelectedDate: bind To
@@ -59,26 +60,28 @@ UserControl "DiscordChatExporter.Views.ExportSetupDialog" {
 
       // Browse
       Button "BrowseButton" {
+        Margin: 8
         Click: BrowseButton_Click
         Content: "BROWSE"
-        Margin: 8
         Style: resource dyn "MaterialDesignFlatButton"
       }
 
       // Export
       Button "ExportButton" {
+        Margin: 8
         Click: ExportButton_Click
         Command: bind ExportCommand
         Content: "EXPORT"
-        Margin: 8
+        IsDefault: true
         Style: resource dyn "MaterialDesignFlatButton"
       }
 
       // Cancel
       Button {
+        Margin: 8
         Command: DialogHost.CloseDialogCommand
         Content: "CANCEL"
-        Margin: 8
+        IsCancel: true
         Style: resource dyn "MaterialDesignFlatButton"
       }
     }

DiscordChatExporter.Gui/Views/ExportSetupDialog.ammy.cs

@@ -1,10 +1,10 @@
 using System.Windows;
-using DiscordChatExporter.Models;
-using DiscordChatExporter.ViewModels;
+using DiscordChatExporter.Core.Models;
+using DiscordChatExporter.Gui.ViewModels;
 using MaterialDesignThemes.Wpf;
 using Microsoft.Win32;
 
-namespace DiscordChatExporter.Views
+namespace DiscordChatExporter.Gui.Views
 {
     public partial class ExportSetupDialog
     {

DiscordChatExporter.Gui/Views/MainWindow.ammy

@@ -1,7 +1,8 @@
-using MaterialDesignThemes.Wpf
+using System.Windows.Interactivity;
+using MaterialDesignThemes.Wpf
 using MaterialDesignThemes.Wpf.Transitions
 
-Window "DiscordChatExporter.Views.MainWindow" {
+Window "DiscordChatExporter.Gui.Views.MainWindow" {
   Title: "DiscordChatExporter"
   Width: 600
   Height: 550
@@ -9,6 +10,7 @@ Window "DiscordChatExporter.Views.MainWindow" {
   DataContext: bind MainViewModel from $resource Container
   FocusManager.FocusedElement: bind from "TokenTextBox"
   FontFamily: resource dyn "MaterialDesignFont"
+  Icon: "/DiscordChatExporter;component/favicon.ico"
   SnapsToDevicePixels: true
   TextElement.FontSize: 13
   TextElement.FontWeight: Regular
@@ -18,47 +20,59 @@ Window "DiscordChatExporter.Views.MainWindow" {
   UseLayoutRounding: true
   WindowStartupLocation: CenterScreen
 
-  DialogHost {
-    DockPanel {
-      IsEnabled: bind IsBusy
-                 convert (bool b) => b ? false : true
+  Interaction.Triggers: [
+    Interactivity.EventTrigger {
+      EventName: "Loaded"
+      InvokeCommandAction { Command: bind ViewLoadedCommand }
+    },
+    Interactivity.EventTrigger {
+      EventName: "Closed"
+      InvokeCommandAction { Command: bind ViewClosedCommand }
+    }
+  ]
 
+  DialogHost {
+    SnackbarMessageQueue: bind MessageQueue from "Snackbar"
+
+    DockPanel {
       // Toolbar
       Border {
         DockPanel.Dock: Top
         Background: resource dyn "PrimaryHueMidBrush"
+        IsEnabled: bind IsBusy
+                   convert (bool b) => b ? false : true
         TextElement.Foreground: resource dyn "SecondaryInverseTextBrush"
         StackPanel {
           Grid {
             #TwoColumns("*", "Auto")
 
             Card {
-              Grid.Column: 0
-              Margin: "6 6 0 6"
+              #Cell(0, 0)
+              Margin: [6, 6, 0, 6]
 
               Grid {
                 #TwoColumns("*", "Auto")
 
                 // Token
                 TextBox "TokenTextBox" {
-                  Grid.Column: 0
+                  #Cell(0, 0)
                   Margin: 6
                   BorderThickness: 0
                   HintAssist.Hint: "Token"
-                  KeyDown: TokenTextBox_KeyDown
                   FontSize: 16
                   Text: bind Token
                         set [ UpdateSourceTrigger: PropertyChanged ]
                   TextFieldAssist.DecorationVisibility: Hidden
-                  TextFieldAssist.TextBoxViewMargin: "0 0 2 0"
+                  TextFieldAssist.TextBoxViewMargin: [0, 0, 2, 0]
                 }
 
                 // Submit
                 Button {
-                  Grid.Column: 1
-                  Margin: "0 6 6 6"
+                  #Cell(0, 1)
+                  Margin: [0, 6, 6, 6]
                   Padding: 4
                   Command: bind PullDataCommand
+                  IsDefault: true
                   Style: resource dyn "MaterialDesignFlatButton"
 
                   PackIcon {
@@ -72,7 +86,7 @@ Window "DiscordChatExporter.Views.MainWindow" {
 
             // Popup menu
             PopupBox {
-              Grid.Column: 1
+              #Cell(0, 1)
               Foreground: resource dyn "PrimaryHueMidForegroundBrush"
               PlacementMode: LeftAndAlignTopEdges
 
@@ -103,6 +117,8 @@ Window "DiscordChatExporter.Views.MainWindow" {
       Grid {
         DockPanel {
           Background: resource dyn "MaterialDesignCardBackground"
+          IsEnabled: bind IsBusy
+                     convert (bool b) => b ? false : true
           Visibility: bind IsDataAvailable
                       convert (bool b) => b ? Visibility.Visible : Visibility.Hidden
 
@@ -122,7 +138,7 @@ Window "DiscordChatExporter.Views.MainWindow" {
                 TransitioningContent {
                   OpeningEffect: TransitionEffect {
                     Duration: "0:0:0.3"
-                    Kind: SlideInFromRight
+                    Kind: SlideInFromLeft
                   }
 
                   Border {
@@ -131,9 +147,11 @@ Window "DiscordChatExporter.Views.MainWindow" {
                     Cursor: CursorType.Hand
 
                     Image {
-                      Margin: "12 4 12 4"
+                      Margin: [12, 4, 12, 4]
                       Width: 48
                       Height: 48
+                      Source: bind IconUrl
+                      ToolTip: bind Name
                       OpacityMask: RadialGradientBrush {
                         GradientStops: [
                           GradientStop { Color: "#FF000000", Offset: 0 }
@@ -141,8 +159,6 @@ Window "DiscordChatExporter.Views.MainWindow" {
                           GradientStop { Color: "#00000000", Offset: 1 }
                         ]
                       }
-                      Source: bind IconUrl
-                      ToolTip: bind Name
                     }
                   }
                 }
@@ -177,12 +193,12 @@ Window "DiscordChatExporter.Views.MainWindow" {
                     ]
 
                     PackIcon {
-                      Margin: "16 7 0 6"
+                      Margin: [16, 7, 0, 6]
                       Kind: PackIconKind.Pound
                       VerticalAlignment: Center
                     }
                     TextBlock {
-                      Margin: "3 8 8 8"
+                      Margin: [3, 8, 8, 8]
                       FontSize: 14
                       Text: bind Name
                       VerticalAlignment: Center
@@ -196,7 +212,7 @@ Window "DiscordChatExporter.Views.MainWindow" {
 
         // Content placeholder
         StackPanel {
-          Margin: "32 32 8 8"
+          Margin: [32, 32, 8, 8]
           Visibility: bind IsDataAvailable
                       convert (bool b) => b ? Visibility.Hidden : Visibility.Visible
 
@@ -206,13 +222,13 @@ Window "DiscordChatExporter.Views.MainWindow" {
           }
 
           TextBlock {
-            Margin: "0 8 0 0"
+            Margin: [0, 8, 0, 0]
             FontSize: 16
             Text: "To obtain it, follow these steps:"
           }
 
           TextBlock {
-            Margin: "8 0 0 0"
+            Margin: [8, 0, 0, 0]
             FontSize: 14
 
             Run {
@@ -264,6 +280,10 @@ Window "DiscordChatExporter.Views.MainWindow" {
             }
           }
         }
+
+        // Snackbar
+        Snackbar "Snackbar" {
+        }
       }
     }
   }

DiscordChatExporter.Gui/Views/MainWindow.ammy.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Reflection;
+using DiscordChatExporter.Gui.Messages;
+using GalaSoft.MvvmLight.Messaging;
+using MaterialDesignThemes.Wpf;
+using Tyrrrz.Extensions;
+
+namespace DiscordChatExporter.Gui.Views
+{
+    public partial class MainWindow
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+            Title += $" v{Assembly.GetExecutingAssembly().GetName().Version}";
+
+            Snackbar.MessageQueue = new SnackbarMessageQueue(TimeSpan.FromSeconds(5));
+
+            // Notification messages
+            Messenger.Default.Register<ShowNotificationMessage>(this, m =>
+            {
+                if (m.CallbackCaption != null && m.Callback != null)
+                    Snackbar.MessageQueue.Enqueue(m.Message, m.CallbackCaption, m.Callback);
+                else
+                    Snackbar.MessageQueue.Enqueue(m.Message);
+            });
+
+            // Dialog messages
+            Messenger.Default.Register<ShowExportSetupMessage>(this,
+                m => DialogHost.Show(new ExportSetupDialog()).Forget());
+            Messenger.Default.Register<ShowSettingsMessage>(this, 
+                m => DialogHost.Show(new SettingsDialog()).Forget());
+        }
+    }
+}

DiscordChatExporter.Gui/Views/SettingsDialog.ammy

@@ -1,13 +1,13 @@
 using MaterialDesignThemes.Wpf
 
-UserControl "DiscordChatExporter.Views.SettingsDialog" {
+UserControl "DiscordChatExporter.Gui.Views.SettingsDialog" {
   DataContext: bind SettingsViewModel from $resource Container
   Width: 250
 
   StackPanel {
     // Date format
     TextBox {
-      Margin: "16 16 16 8"
+      Margin: [16, 16, 16, 8]
       HintAssist.Hint: "Date format"
       HintAssist.IsFloating: true
       Text: bind DateFormat
@@ -15,18 +15,37 @@ UserControl "DiscordChatExporter.Views.SettingsDialog" {
 
     // Group limit
     TextBox {
-      Margin: "16 8 16 8"
+      Margin: [16, 8, 16, 8]
       HintAssist.Hint: "Message group limit"
       HintAssist.IsFloating: true
       Text: bind MessageGroupLimit
     }
 
+    // Auto-update
+    DockPanel {
+      LastChildFill: false
+
+      TextBlock {
+        Margin: [16, 8, 16, 8]
+        DockPanel.Dock: Left
+        Text: "Auto-updates"
+      }
+
+      ToggleButton {
+        Margin: [16, 8, 16, 8]
+        DockPanel.Dock: Right
+        IsChecked: bind IsAutoUpdateEnabled
+      }
+    }
+
     // Save
     Button {
       Margin: 8
       Command: DialogHost.CloseDialogCommand
       Content: "SAVE"
       HorizontalAlignment: Right
+      IsDefault: true
+      IsCancel: true
       Style: resource dyn "MaterialDesignFlatButton"
     }
   }

DiscordChatExporter.Gui/Views/SettingsDialog.ammy.cs

@@ -1,4 +1,4 @@
-namespace DiscordChatExporter.Views
+namespace DiscordChatExporter.Gui.Views
 {
     public partial class SettingsDialog
     {

DiscordChatExporter.Gui/app.config

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="CommonServiceLocator" publicKeyToken="489b6accfaf20ef0" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-2.0.3.0" newVersion="2.0.3.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
+</configuration>

DiscordChatExporter.Gui/packages.config

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Ammy" version="1.2.94" targetFramework="net461" />
+  <package id="Ammy.WPF" version="1.2.94" targetFramework="net461" />
+  <package id="CommonServiceLocator" version="2.0.3" targetFramework="net461" />
+  <package id="MaterialDesignColors" version="1.1.3" targetFramework="net461" />
+  <package id="MaterialDesignThemes" version="2.4.0.1044" targetFramework="net461" />
+  <package id="MvvmLightLibs" version="5.4.1" targetFramework="net461" />
+  <package id="Tyrrrz.Extensions" version="1.5.0" targetFramework="net461" />
+</packages>

DiscordChatExporter.sln

@@ -1,15 +1,20 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.26730.15
+VisualStudioVersion = 15.0.27130.2026
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{EA305DD5-1F98-415D-B6C4-65053A58F914}"
 	ProjectSection(SolutionItems) = preProject
+		Changelog.md = Changelog.md
 		License.txt = License.txt
 		Readme.md = Readme.md
 	EndProjectSection
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DiscordChatExporter", "DiscordChatExporter\DiscordChatExporter.csproj", "{732A67AF-93DE-49DF-B10F-FD74710B7863}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DiscordChatExporter.Gui", "DiscordChatExporter.Gui\DiscordChatExporter.Gui.csproj", "{732A67AF-93DE-49DF-B10F-FD74710B7863}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DiscordChatExporter.Core", "DiscordChatExporter.Core\DiscordChatExporter.Core.csproj", "{707C0CD0-A7E0-4CAB-8DB9-07A45CB87377}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DiscordChatExporter.Cli", "DiscordChatExporter.Cli\DiscordChatExporter.Cli.csproj", "{D08624B6-3081-4BCB-91F8-E9832FACC6CE}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -21,6 +26,14 @@ Global
 		{732A67AF-93DE-49DF-B10F-FD74710B7863}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{732A67AF-93DE-49DF-B10F-FD74710B7863}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{732A67AF-93DE-49DF-B10F-FD74710B7863}.Release|Any CPU.Build.0 = Release|Any CPU
+		{707C0CD0-A7E0-4CAB-8DB9-07A45CB87377}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{707C0CD0-A7E0-4CAB-8DB9-07A45CB87377}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{707C0CD0-A7E0-4CAB-8DB9-07A45CB87377}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{707C0CD0-A7E0-4CAB-8DB9-07A45CB87377}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D08624B6-3081-4BCB-91F8-E9832FACC6CE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D08624B6-3081-4BCB-91F8-E9832FACC6CE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D08624B6-3081-4BCB-91F8-E9832FACC6CE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D08624B6-3081-4BCB-91F8-E9832FACC6CE}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

DiscordChatExporter/App.config

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<configuration>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
-    </startup>
-</configuration>

DiscordChatExporter/Container.cs

@@ -1,43 +0,0 @@
-using DiscordChatExporter.Services;
-using DiscordChatExporter.ViewModels;
-using GalaSoft.MvvmLight.Ioc;
-using Microsoft.Practices.ServiceLocation;
-
-namespace DiscordChatExporter
-{
-    public class Container
-    {
-        public static void Init()
-        {
-            ServiceLocator.SetLocatorProvider(() => SimpleIoc.Default);
-
-            // Settings
-            SimpleIoc.Default.Register<ISettingsService, SettingsService>();
-            ServiceLocator.Current.GetInstance<ISettingsService>().Load();
-
-            // Services
-            SimpleIoc.Default.Register<IDataService, DataService>();
-            SimpleIoc.Default.Register<IExportService, ExportService>();
-            SimpleIoc.Default.Register<IMessageGroupService, MessageGroupService>();
-
-            // View models
-            SimpleIoc.Default.Register<IErrorViewModel, ErrorViewModel>(true);
-            SimpleIoc.Default.Register<IExportDoneViewModel, ExportDoneViewModel>(true);
-            SimpleIoc.Default.Register<IExportSetupViewModel, ExportSetupViewModel>(true);
-            SimpleIoc.Default.Register<IMainViewModel, MainViewModel>(true);
-            SimpleIoc.Default.Register<ISettingsViewModel, SettingsViewModel>(true);
-        }
-
-        public static void Cleanup()
-        {
-            // Settings
-            ServiceLocator.Current.GetInstance<ISettingsService>().Save();
-        }
-
-        public IErrorViewModel ErrorViewModel => ServiceLocator.Current.GetInstance<IErrorViewModel>();
-        public IExportDoneViewModel ExportDoneViewModel => ServiceLocator.Current.GetInstance<IExportDoneViewModel>();
-        public IExportSetupViewModel ExportSetupViewModel => ServiceLocator.Current.GetInstance<IExportSetupViewModel>();
-        public IMainViewModel MainViewModel => ServiceLocator.Current.GetInstance<IMainViewModel>();
-        public ISettingsViewModel SettingsViewModel => ServiceLocator.Current.GetInstance<ISettingsViewModel>();
-    }
-}

DiscordChatExporter/Messages/ShowErrorMessage.cs

@@ -1,12 +0,0 @@
-namespace DiscordChatExporter.Messages
-{
-    public class ShowErrorMessage
-    {
-        public string Message { get; }
-
-        public ShowErrorMessage(string message)
-        {
-            Message = message;
-        }
-    }
-}

DiscordChatExporter/Messages/ShowExportDoneMessage.cs

@@ -1,12 +0,0 @@
-namespace DiscordChatExporter.Messages
-{
-    public class ShowExportDoneMessage
-    {
-        public string FilePath { get; }
-
-        public ShowExportDoneMessage(string filePath)
-        {
-            FilePath = filePath;
-        }
-    }
-}

DiscordChatExporter/Models/Channel.cs

@@ -1,23 +0,0 @@
-namespace DiscordChatExporter.Models
-{
-    public class Channel
-    {
-        public string Id { get; }
-
-        public string Name { get; }
-
-        public ChannelType Type { get; }
-
-        public Channel(string id, string name, ChannelType type)
-        {
-            Id = id;
-            Name = name;
-            Type = type;
-        }
-
-        public override string ToString()
-        {
-            return Name;
-        }
-    }
-}

DiscordChatExporter/Models/Message.cs

@@ -1,37 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace DiscordChatExporter.Models
-{
-    public class Message
-    {
-        public string Id { get; }
-
-        public User Author { get; }
-
-        public DateTime TimeStamp { get; }
-
-        public DateTime? EditedTimeStamp { get; }
-
-        public string Content { get; }
-
-        public IReadOnlyList<Attachment> Attachments { get; }
-
-        public Message(string id, User author,
-            DateTime timeStamp, DateTime? editedTimeStamp,
-            string content, IReadOnlyList<Attachment> attachments)
-        {
-            Id = id;
-            Author = author;
-            TimeStamp = timeStamp;
-            EditedTimeStamp = editedTimeStamp;
-            Content = content;
-            Attachments = attachments;
-        }
-
-        public override string ToString()
-        {
-            return Content;
-        }
-    }
-}

DiscordChatExporter/Program.cs

@@ -1,36 +0,0 @@
-using System;
-using System.IO;
-using System.Reflection;
-using System.Resources;
-using AmmySidekick;
-
-namespace DiscordChatExporter
-{
-    public static class Program
-    {
-        [STAThread]
-        public static void Main()
-        {
-            var app = new App();
-            app.InitializeComponent();
-
-            RuntimeUpdateHandler.Register(app, $"/{Ammy.GetAssemblyName(app)};component/App.g.xaml");
-
-            app.Run();
-        }
-
-        public static string GetResourceString(string resourcePath)
-        {
-            var assembly = Assembly.GetExecutingAssembly();
-            var stream = assembly.GetManifestResourceStream(resourcePath);
-            if (stream == null)
-                throw new MissingManifestResourceException("Could not find resource");
-
-            using (stream)
-            using (var reader = new StreamReader(stream))
-            {
-                return reader.ReadToEnd();
-            }
-        }
-    }
-}

DiscordChatExporter/Properties/AssemblyInfo.cs

@@ -1,7 +0,0 @@
-using System.Reflection;
-
-[assembly: AssemblyTitle("DiscordChatExporter")]
-[assembly: AssemblyCompany("Tyrrrz")]
-[assembly: AssemblyCopyright("Copyright (c) 2017 Alexey Golub")]
-[assembly: AssemblyVersion("2.2.1")]
-[assembly: AssemblyFileVersion("2.2.1")]

DiscordChatExporter/Services/DataService.cs

@@ -1,220 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net.Http;
-using System.Threading.Tasks;
-using DiscordChatExporter.Exceptions;
-using DiscordChatExporter.Models;
-using Newtonsoft.Json.Linq;
-using Tyrrrz.Extensions;
-
-namespace DiscordChatExporter.Services
-{
-    public partial class DataService : IDataService, IDisposable
-    {
-        private const string ApiRoot = "https://discordapp.com/api/v6";
-        private readonly HttpClient _httpClient = new HttpClient();
-
-        private async Task<string> GetStringAsync(string url)
-        {
-            using (var response = await _httpClient.GetAsync(url))
-            {
-                // Check status code
-                // We throw our own exception here because default one doesn't have status code
-                if (!response.IsSuccessStatusCode)
-                    throw new HttpErrorStatusCodeException(response.StatusCode);
-
-                // Get content
-                return await response.Content.ReadAsStringAsync();
-            }
-        }
-
-        public async Task<IReadOnlyList<Guild>> GetGuildsAsync(string token)
-        {
-            // Form request url
-            var url = $"{ApiRoot}/users/@me/guilds?token={token}&limit=100";
-
-            // Get response
-            var content = await GetStringAsync(url);
-
-            // Parse
-            var guilds = JArray.Parse(content).Select(ParseGuild).ToArray();
-
-            return guilds;
-        }
-
-        public async Task<IReadOnlyList<Channel>> GetDirectMessageChannelsAsync(string token)
-        {
-            // Form request url
-            var url = $"{ApiRoot}/users/@me/channels?token={token}";
-
-            // Get response
-            var content = await GetStringAsync(url);
-
-            // Parse
-            var channels = JArray.Parse(content).Select(ParseChannel).ToArray();
-
-            return channels;
-        }
-
-        public async Task<IReadOnlyList<Channel>> GetGuildChannelsAsync(string token, string guildId)
-        {
-            // Form request url
-            var url = $"{ApiRoot}/guilds/{guildId}/channels?token={token}";
-
-            // Get response
-            var content = await GetStringAsync(url);
-
-            // Parse
-            var channels = JArray.Parse(content).Select(ParseChannel).ToArray();
-
-            return channels;
-        }
-
-        public async Task<IReadOnlyList<Message>> GetChannelMessagesAsync(string token, string channelId,
-            DateTime? from, DateTime? to)
-        {
-            var result = new List<Message>();
-
-            // We are going backwards from last message to first
-            // collecting everything between them in batches
-            string beforeId = null;
-            while (true)
-            {
-                // Form request url
-                var url = $"{ApiRoot}/channels/{channelId}/messages?token={token}&limit=100";
-                if (beforeId.IsNotBlank())
-                    url += $"&before={beforeId}";
-
-                // Get response
-                var content = await GetStringAsync(url);
-
-                // Parse
-                var messages = JArray.Parse(content).Select(ParseMessage);
-
-                // Add messages to list
-                var currentMessageId = default(string);
-                foreach (var message in messages)
-                {
-                    result.Add(message);
-                    currentMessageId = message.Id;
-                }
-
-                // If no messages - break
-                if (currentMessageId == null)
-                    break;
-
-                // If last message is older than from date - break
-                if (from != null && result.Last().TimeStamp < from)
-                    break;
-
-                // Otherwise offset the next request
-                beforeId = currentMessageId;
-            }
-
-            // Messages appear newest first, we need to reverse
-            result.Reverse();
-
-            // Filter
-            if (from != null)
-                result.RemoveAll(m => m.TimeStamp < from);
-            if (to != null)
-                result.RemoveAll(m => m.TimeStamp > to);
-
-            return result;
-        }
-
-        protected virtual void Dispose(bool disposing)
-        {
-            if (disposing)
-            {
-                _httpClient.Dispose();
-            }
-        }
-
-        public void Dispose()
-        {
-            Dispose(true);
-            GC.SuppressFinalize(this);
-        }
-    }
-
-    public partial class DataService
-    {
-        private static User ParseUser(JToken token)
-        {
-            var id = token.Value<string>("id");
-            var discriminator = token.Value<int>("discriminator");
-            var name = token.Value<string>("username");
-            var avatarHash = token.Value<string>("avatar");
-
-            return new User(id, discriminator, name, avatarHash);
-        }
-
-        private static Guild ParseGuild(JToken token)
-        {
-            var id = token.Value<string>("id");
-            var name = token.Value<string>("name");
-            var iconHash = token.Value<string>("icon");
-
-            return new Guild(id, name, iconHash);
-        }
-
-        private static Channel ParseChannel(JToken token)
-        {
-            // Get basic data
-            var id = token.Value<string>("id");
-            var type = (ChannelType) token.Value<int>("type");
-
-            // Extract name based on type
-            string name;
-            if (type.IsEither(ChannelType.DirectTextChat, ChannelType.DirectGroupTextChat))
-            {
-                var recipients = token["recipients"].Select(ParseUser);
-                name = recipients.Select(r => r.Name).JoinToString(", ");
-            }
-            else
-            {
-                name = token.Value<string>("name");
-            }
-
-            return new Channel(id, name, type);
-        }
-
-        private static Message ParseMessage(JToken token)
-        {
-            // Get basic data
-            var id = token.Value<string>("id");
-            var timeStamp = token.Value<DateTime>("timestamp");
-            var editedTimeStamp = token.Value<DateTime?>("edited_timestamp");
-            var content = token.Value<string>("content");
-
-            // Lazy workaround for calls
-            if (token["call"] != null)
-                content = "Started a call.";
-
-            // Get author
-            var author = ParseUser(token["author"]);
-
-            // Get attachment
-            var attachments = new List<Attachment>();
-            foreach (var attachmentJson in token["attachments"].EmptyIfNull())
-            {
-                var attachmentId = attachmentJson.Value<string>("id");
-                var attachmentUrl = attachmentJson.Value<string>("url");
-                var attachmentType = attachmentJson["width"] != null
-                    ? AttachmentType.Image
-                    : AttachmentType.Other;
-                var attachmentFileName = attachmentJson.Value<string>("filename");
-                var attachmentFileSize = attachmentJson.Value<long>("size");
-
-                var attachment = new Attachment(
-                    attachmentId, attachmentType, attachmentUrl,
-                    attachmentFileName, attachmentFileSize);
-                attachments.Add(attachment);
-            }
-
-            return new Message(id, author, timeStamp, editedTimeStamp, content, attachments);
-        }
-    }
-}

DiscordChatExporter/Services/ExportService.cs

@@ -1,253 +0,0 @@
-using System;
-using System.IO;
-using System.Net;
-using System.Text;
-using System.Text.RegularExpressions;
-using System.Threading.Tasks;
-using DiscordChatExporter.Models;
-using Tyrrrz.Extensions;
-
-namespace DiscordChatExporter.Services
-{
-    public partial class ExportService : IExportService
-    {
-        private readonly ISettingsService _settingsService;
-
-        public ExportService(ISettingsService settingsService)
-        {
-            _settingsService = settingsService;
-        }
-
-        private async Task ExportAsTextAsync(string filePath, ChannelChatLog log)
-        {
-            using (var writer = new StreamWriter(filePath, false, Encoding.UTF8, 128 * 1024))
-            {
-                // Generation info
-                await writer.WriteLineAsync("https://github.com/Tyrrrz/DiscordChatExporter");
-                await writer.WriteLineAsync();
-
-                // Guild and channel info
-                await writer.WriteLineAsync('='.Repeat(48));
-                await writer.WriteLineAsync($"Guild: {log.Guild}");
-                await writer.WriteLineAsync($"Channel: {log.Channel}");
-                await writer.WriteLineAsync($"Messages: {log.TotalMessageCount:N0}");
-                await writer.WriteLineAsync('='.Repeat(48));
-                await writer.WriteLineAsync();
-
-                // Chat log
-                foreach (var group in log.MessageGroups)
-                {
-                    var timeStampFormatted = group.TimeStamp.ToString(_settingsService.DateFormat);
-                    await writer.WriteLineAsync($"{group.Author}  [{timeStampFormatted}]");
-
-                    // Messages
-                    foreach (var message in group.Messages)
-                    {
-                        // Content
-                        if (message.Content.IsNotBlank())
-                        {
-                            var contentFormatted = message.Content.Replace("\n", Environment.NewLine);
-                            await writer.WriteLineAsync(contentFormatted);
-                        }
-
-                        // Attachments
-                        foreach (var attachment in message.Attachments)
-                        {
-                            await writer.WriteLineAsync(attachment.Url);
-                        }
-                    }
-
-                    await writer.WriteLineAsync();
-                }
-            }
-        }
-
-        private async Task ExportAsHtmlAsync(string filePath, ChannelChatLog log, string css)
-        {
-            using (var writer = new StreamWriter(filePath, false, Encoding.UTF8, 128 * 1024))
-            {
-                // Generation info
-                await writer.WriteLineAsync("<!-- https://github.com/Tyrrrz/DiscordChatExporter -->");
-
-                // Html start
-                await writer.WriteLineAsync("<!DOCTYPE html>");
-                await writer.WriteLineAsync("<html lang=\"en\">");
-
-                // HEAD
-                await writer.WriteLineAsync("<head>");
-                await writer.WriteLineAsync($"<title>{log.Guild} - {log.Channel}</title>");
-                await writer.WriteLineAsync("<meta charset=\"utf-8\" />");
-                await writer.WriteLineAsync("<meta name=\"viewport\" content=\"width=device-width\" />");
-                await writer.WriteLineAsync($"<style>{css}</style>");
-                await writer.WriteLineAsync("</head>");
-
-                // Body start
-                await writer.WriteLineAsync("<body>");
-
-                // Guild and channel info
-                await writer.WriteLineAsync("<div id=\"info\">");
-                await writer.WriteLineAsync("<div class=\"info-left\">");
-                await writer.WriteLineAsync($"<img class=\"guild-icon\" src=\"{log.Guild.IconUrl}\" />");
-                await writer.WriteLineAsync("</div>"); // info-left
-                await writer.WriteLineAsync("<div class=\"info-right\">");
-                await writer.WriteLineAsync($"<div class=\"guild-name\">{log.Guild}</div>");
-                await writer.WriteLineAsync($"<div class=\"channel-name\">{log.Channel}</div>");
-                await writer.WriteLineAsync($"<div class=\"misc\">{log.TotalMessageCount:N0} messages</div>");
-                await writer.WriteLineAsync("</div>"); // info-right
-                await writer.WriteLineAsync("</div>"); // info
-
-                // Chat log
-                await writer.WriteLineAsync("<div id=\"log\">");
-                foreach (var group in log.MessageGroups)
-                {
-                    await writer.WriteLineAsync("<div class=\"msg\">");
-                    await writer.WriteLineAsync("<div class=\"msg-left\">");
-                    await writer.WriteLineAsync($"<img class=\"msg-avatar\" src=\"{group.Author.AvatarUrl}\" />");
-                    await writer.WriteLineAsync("</div>");
-
-                    await writer.WriteLineAsync("<div class=\"msg-right\">");
-                    await writer.WriteAsync($"<span class=\"msg-user\" title=\"{HtmlEncode(group.Author)}\">");
-                    await writer.WriteAsync(HtmlEncode(group.Author.Name));
-                    await writer.WriteLineAsync("</span>");
-                    var timeStampFormatted = HtmlEncode(group.TimeStamp.ToString(_settingsService.DateFormat));
-                    await writer.WriteLineAsync($"<span class=\"msg-date\">{timeStampFormatted}</span>");
-
-                    // Messages
-                    foreach (var message in group.Messages)
-                    {
-                        // Content
-                        if (message.Content.IsNotBlank())
-                        {
-                            await writer.WriteLineAsync("<div class=\"msg-content\">");
-                            var contentFormatted = FormatMessageContentHtml(message.Content);
-                            await writer.WriteAsync(contentFormatted);
-
-                            // Edited timestamp
-                            if (message.EditedTimeStamp != null)
-                            {
-                                var editedTimeStampFormatted =
-                                    HtmlEncode(message.EditedTimeStamp.Value.ToString(_settingsService.DateFormat));
-                                await writer.WriteAsync(
-                                    $"<span class=\"msg-edited\" title=\"{editedTimeStampFormatted}\">(edited)</span>");
-                            }
-
-                            await writer.WriteLineAsync("</div>"); // msg-content
-                        }
-
-                        // Attachments
-                        foreach (var attachment in message.Attachments)
-                        {
-                            if (attachment.Type == AttachmentType.Image)
-                            {
-                                await writer.WriteLineAsync("<div class=\"msg-attachment\">");
-                                await writer.WriteLineAsync($"<a href=\"{attachment.Url}\">");
-                                await writer.WriteLineAsync(
-                                    $"<img class=\"msg-attachment\" src=\"{attachment.Url}\" />");
-                                await writer.WriteLineAsync("</a>");
-                                await writer.WriteLineAsync("</div>");
-                            }
-                            else
-                            {
-                                await writer.WriteLineAsync("<div class=\"msg-attachment\">");
-                                await writer.WriteLineAsync($"<a href=\"{attachment.Url}\">");
-                                var fileSizeFormatted = FormatFileSize(attachment.FileSize);
-                                await writer.WriteLineAsync($"Attachment: {attachment.FileName} ({fileSizeFormatted})");
-                                await writer.WriteLineAsync("</a>");
-                                await writer.WriteLineAsync("</div>");
-                            }
-                        }
-                    }
-                    await writer.WriteLineAsync("</div>"); // msg-right
-                    await writer.WriteLineAsync("</div>"); // msg
-                }
-                await writer.WriteLineAsync("</div>"); // log
-
-                await writer.WriteLineAsync("</body>");
-                await writer.WriteLineAsync("</html>");
-            }
-        }
-
-        public Task ExportAsync(ExportFormat format, string filePath, ChannelChatLog log)
-        {
-            if (format == ExportFormat.PlainText)
-            {
-                return ExportAsTextAsync(filePath, log);
-            }
-            if (format == ExportFormat.HtmlDark)
-            {
-                var css = Program.GetResourceString("DiscordChatExporter.Resources.ExportService.DarkTheme.css");
-                return ExportAsHtmlAsync(filePath, log, css);
-            }
-            if (format == ExportFormat.HtmlLight)
-            {
-                var css = Program.GetResourceString("DiscordChatExporter.Resources.ExportService.LightTheme.css");
-                return ExportAsHtmlAsync(filePath, log, css);
-            }
-
-            throw new NotImplementedException();
-        }
-    }
-
-    public partial class ExportService
-    {
-        private static string HtmlEncode(string str)
-        {
-            return WebUtility.HtmlEncode(str);
-        }
-
-        private static string HtmlEncode(object obj)
-        {
-            return WebUtility.HtmlEncode(obj.ToString());
-        }
-
-        private static string FormatFileSize(long fileSize)
-        {
-            string[] units = {"B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"};
-            double size = fileSize;
-            var unit = 0;
-
-            while (size >= 1024)
-            {
-                size /= 1024;
-                ++unit;
-            }
-
-            return $"{size:0.#} {units[unit]}";
-        }
-
-        private static string FormatMessageContentHtml(string content)
-        {
-            // Encode HTML
-            content = HtmlEncode(content);
-
-            // Preformatted div
-            content = Regex.Replace(content, "```+(?:[^`]*?\\n)?([^`]+)\\n?```+",
-                m => "<div class=\"pre\">" + m.Groups[1].Value + "</div>");
-
-            // Preformatted span
-            content = Regex.Replace(content, "`([^`]+)`",
-                m => "<span class=\"pre\">" + m.Groups[1].Value + "</span>");
-
-            // Links from URLs
-            content = Regex.Replace(content, "((https?|ftp)://[^\\s/$.?#].[^\\s]*)",
-                "<a href=\"$1\">$1</a>");
-
-            // Bold
-            content = Regex.Replace(content, "\\*\\*([^\\*]*?)\\*\\*", "<b>$1</b>");
-
-            // Italic
-            content = Regex.Replace(content, "\\*([^\\*]*?)\\*", "<i>$1</i>");
-
-            // Underline
-            content = Regex.Replace(content, "__([^_]*?)__", "<u>$1</u>");
-
-            // Strike through
-            content = Regex.Replace(content, "~~([^~]*?)~~", "<s>$1</s>");
-
-            // New lines
-            content = content.Replace("\n", "<br />");
-
-            return content;
-        }
-    }
-}

DiscordChatExporter/ViewModels/ErrorViewModel.cs

@@ -1,19 +0,0 @@
-using DiscordChatExporter.Messages;
-using GalaSoft.MvvmLight;
-
-namespace DiscordChatExporter.ViewModels
-{
-    public class ErrorViewModel : ViewModelBase, IErrorViewModel
-    {
-        public string Message { get; private set; }
-
-        public ErrorViewModel()
-        {
-            // Messages
-            MessengerInstance.Register<ShowErrorMessage>(this, m =>
-            {
-                Message = m.Message;
-            });
-        }
-    }
-}

DiscordChatExporter/ViewModels/ExportDoneViewModel.cs

@@ -1,32 +0,0 @@
-using System.Diagnostics;
-using DiscordChatExporter.Messages;
-using GalaSoft.MvvmLight;
-using GalaSoft.MvvmLight.CommandWpf;
-
-namespace DiscordChatExporter.ViewModels
-{
-    public class ExportDoneViewModel : ViewModelBase, IExportDoneViewModel
-    {
-        private string _filePath;
-
-        // Commands
-        public RelayCommand OpenCommand { get; }
-
-        public ExportDoneViewModel()
-        {
-            // Commands
-            OpenCommand = new RelayCommand(Open);
-
-            // Messages
-            MessengerInstance.Register<ShowExportDoneMessage>(this, m =>
-            {
-                _filePath = m.FilePath;
-            });
-        }
-
-        private void Open()
-        {
-            Process.Start(_filePath);
-        }
-    }
-}

DiscordChatExporter/ViewModels/IErrorViewModel.cs

@@ -1,7 +0,0 @@
-namespace DiscordChatExporter.ViewModels
-{
-    public interface IErrorViewModel
-    {
-        string Message { get; }
-    }
-}

DiscordChatExporter/ViewModels/IExportDoneViewModel.cs

@@ -1,9 +0,0 @@
-using GalaSoft.MvvmLight.CommandWpf;
-
-namespace DiscordChatExporter.ViewModels
-{
-    public interface IExportDoneViewModel
-    {
-        RelayCommand OpenCommand { get; }
-    }
-}

DiscordChatExporter/Views/ErrorDialog.ammy

@@ -1,25 +0,0 @@
-using MaterialDesignThemes.Wpf
-
-UserControl "DiscordChatExporter.Views.ErrorDialog" {
-  DataContext: bind ErrorViewModel from $resource Container
-    Width: 250
-
-    StackPanel {
-      // Message
-      TextBlock {
-        Margin: 16
-        FontSize: 16
-        TextWrapping: WrapWithOverflow
-        Text: bind Message
-      }
-
-      // OK
-      Button {
-        Margin: 8
-        Command: DialogHost.CloseDialogCommand
-        Content: "OK"
-        HorizontalAlignment: Right
-        Style: resource dyn "MaterialDesignFlatButton"
-      }
-    }
-}

DiscordChatExporter/Views/ExportDoneDialog.ammy

@@ -1,38 +0,0 @@
-using MaterialDesignThemes.Wpf
-
-UserControl "DiscordChatExporter.Views.ExportDoneDialog" {
-  DataContext: bind ExportDoneViewModel from $resource Container
-  Width: 250
-
-  StackPanel {
-    // Message
-    TextBlock {
-      Margin: 16
-      FontSize: 16
-      TextWrapping: WrapWithOverflow
-      Text: "Finished exporting chat log"
-    }
-
-    // Buttons
-    @StackPanelHorizontal {
-      HorizontalAlignment: Right
-
-      // Open
-      Button "OpenButton" {
-        Click: OpenButton_Click
-        Command: bind OpenCommand
-        Content: "OPEN IT"
-        Margin: 8
-        Style: resource dyn "MaterialDesignFlatButton"
-      }
-
-      // Dismiss
-      Button {
-        Command: DialogHost.CloseDialogCommand
-        Content: "DISMISS"
-        Margin: 8
-        Style: resource dyn "MaterialDesignFlatButton"
-      }
-    }
-  }
-}

DiscordChatExporter/Views/ExportDoneDialog.ammy.cs

@@ -1,18 +0,0 @@
-using System.Windows;
-using MaterialDesignThemes.Wpf;
-
-namespace DiscordChatExporter.Views
-{
-    public partial class ExportDoneDialog
-    {
-        public ExportDoneDialog()
-        {
-            InitializeComponent();
-        }
-
-        public void OpenButton_Click(object sender, RoutedEventArgs args)
-        {
-            DialogHost.CloseDialogCommand.Execute(null, null);
-        }
-    }
-}

DiscordChatExporter/Views/MainWindow.ammy.cs

@@ -1,35 +0,0 @@
-using System.Reflection;
-using System.Windows.Input;
-using DiscordChatExporter.Messages;
-using DiscordChatExporter.ViewModels;
-using GalaSoft.MvvmLight.Messaging;
-using MaterialDesignThemes.Wpf;
-using Tyrrrz.Extensions;
-
-namespace DiscordChatExporter.Views
-{
-    public partial class MainWindow
-    {
-        private IMainViewModel ViewModel => (IMainViewModel) DataContext;
-
-        public MainWindow()
-        {
-            InitializeComponent();
-            Title += $" v{Assembly.GetExecutingAssembly().GetName().Version}";
-
-            Messenger.Default.Register<ShowErrorMessage>(this, m => DialogHost.Show(new ErrorDialog()).Forget());
-            Messenger.Default.Register<ShowExportDoneMessage>(this, m => DialogHost.Show(new ExportDoneDialog()).Forget());
-            Messenger.Default.Register<ShowExportSetupMessage>(this, m => DialogHost.Show(new ExportSetupDialog()).Forget());
-            Messenger.Default.Register<ShowSettingsMessage>(this, m => DialogHost.Show(new SettingsDialog()).Forget());
-        }
-
-        public void TokenTextBox_KeyDown(object sender, KeyEventArgs e)
-        {
-            if (e.Key == Key.Enter)
-            {
-                // Execute command
-                ViewModel.PullDataCommand.Execute(null);
-            }
-        }
-    }
-}

DiscordChatExporter/packages.config

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="Ammy" version="1.2.87" targetFramework="net461" />
-  <package id="Ammy.WPF" version="1.2.87" targetFramework="net461" />
-  <package id="CommonServiceLocator" version="1.3" targetFramework="net461" />
-  <package id="MaterialDesignColors" version="1.1.3" targetFramework="net461" />
-  <package id="MaterialDesignThemes" version="2.3.1.953" targetFramework="net461" />
-  <package id="MvvmLightLibs" version="5.3.0.0" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net461" />
-  <package id="Tyrrrz.Extensions" version="1.4.1" targetFramework="net461" />
-  <package id="Tyrrrz.Settings" version="1.3.0" targetFramework="net461" />
-</packages>

License.txt

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017 Alexey Golub
+Copyright (c) 2017-2018 Alexey Golub
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

Readme.md

@@ -1,5 +1,9 @@
 # DiscordChatExporter
 
+[![Build](https://img.shields.io/appveyor/ci/Tyrrrz/DiscordChatExporter/master.svg)](https://ci.appveyor.com/project/Tyrrrz/DiscordChatExporter)
+[![Release](https://img.shields.io/github/release/Tyrrrz/DiscordChatExporter.svg)](https://github.com/Tyrrrz/DiscordChatExporter/releases)
+[![Downloads](https://img.shields.io/github/downloads/Tyrrrz/DiscordChatExporter/total.svg)](https://github.com/Tyrrrz/DiscordChatExporter/releases)
+
 DiscordChatExporter can be used to export message history from a [Discord](https://discordapp.com) channel to a file. It works for both direct message chats and guild chats, supports markdown, message grouping, and attachments. The tool also lets you select from/to dates to limit the exported messages. There are options to configure the output, such as date format, color theme, message grouping limit, etc.
 
 ## Screenshots
@@ -9,21 +13,25 @@ DiscordChatExporter can be used to export message history from a [Discord](https
 
 ## Download
 
-- [See releases](https://github.com/Tyrrrz/DiscordChatExporter/releases)
+- [Stable releases](https://github.com/Tyrrrz/DiscordChatExporter/releases)
+- [Continuous integration](https://ci.appveyor.com/project/Tyrrrz/DiscordChatExporter)
 
 ## Features
 
 - Intuitive GUI that displays available guilds and channels
+- CLI as additional alternative to GUI
 - Date ranges to limit messages
 - Groups messages by author and time
-- Export to a plain text file
-- Export to an HTML file
+- Exports to a plain text file
+- Exports to an HTML file
   - Dark and light themes
   - User avatars
   - Inline image attachments
   - Full markdown support
   - Automatic links
   - Styled similarly to the app
+- Renders custom emojis
+- Resolves user, role and channel mentions
 
 ## Libraries used
 
@@ -31,5 +39,7 @@ DiscordChatExporter can be used to export message history from a [Discord](https
 - [GalaSoft.MVVMLight](http://www.mvvmlight.net)
 - [MaterialDesignInXamlToolkit](https://github.com/ButchersBoy/MaterialDesignInXamlToolkit)
 - [Newtonsoft.Json](http://www.newtonsoft.com/json)
+- [Onova](https://github.com/Tyrrrz/Onova)
+- [FluentCommandLineParser](https://github.com/fclp/fluent-command-line-parser)
 - [Tyrrrz.Extensions](https://github.com/Tyrrrz/Extensions)
 - [Tyrrrz.Settings](https://github.com/Tyrrrz/Settings)

appveyor.yml

@@ -0,0 +1,29 @@
+version: '{build}'
+
+image: Visual Studio 2017
+configuration: Release
+
+before_build:
+- ps: nuget restore
+
+build:
+  verbosity: minimal
+
+after_build:
+- ps: Deploy\Prepare.ps1
+
+artifacts:
+- path: Deploy\bin\DiscordChatExporter.zip
+  name: DiscordChatExporter.zip
+- path: Deploy\bin\DiscordChatExporter.Cli.zip
+  name: DiscordChatExporter.Cli.zip
+
+deploy:
+- provider: GitHub
+  auth_token:
+    secure: sjQHWRw29AMiVMn3MtidtWnAzAf1mJ+mkJ/7h1B9TIAHhkFrqwMK7LtXV+uNJ9AO
+  artifact: DiscordChatExporter.zip,DiscordChatExporter.Cli.zip
+  description: '[Changelog](https://github.com/Tyrrrz/DiscordChatExporter/blob/master/Changelog.md)'
+  on:
+    branch: master
+    appveyor_repo_tag: true