app/Desktop/Desktop.csproj

@@ -9,7 +9,6 @@
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
     <ApplicationIcon>./Resources/icon.ico</ApplicationIcon>
-    <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
     <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
     <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
   </PropertyGroup>

app/Desktop/Dialogs/CheckBox/CheckBoxDialog.axaml

@@ -5,7 +5,6 @@
         xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.CheckBox"
         mc:Ignorable="d" d:DesignWidth="500"
         x:Class="DHT.Desktop.Dialogs.CheckBox.CheckBoxDialog"
-        x:DataType="namespace:CheckBoxDialogModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="500" SizeToContent="Height" CanResize="False"

app/Desktop/Dialogs/Message/MessageDialog.axaml

@@ -5,7 +5,6 @@
         xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.Message"
         mc:Ignorable="d" d:DesignWidth="500"
         x:Class="DHT.Desktop.Dialogs.Message.MessageDialog"
-        x:DataType="namespace:MessageDialogModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="500" SizeToContent="Height" CanResize="False"

app/Desktop/Dialogs/Progress/ProgressDialog.axaml

@@ -5,7 +5,6 @@
         xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.Progress"
         mc:Ignorable="d" d:DesignWidth="500"
         x:Class="DHT.Desktop.Dialogs.Progress.ProgressDialog"
-        x:DataType="namespace:ProgressDialogModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Opened="OnOpened"

app/Desktop/Dialogs/TextBox/TextBoxDialog.axaml

@@ -5,7 +5,6 @@
         xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.TextBox"
         mc:Ignorable="d" d:DesignWidth="500"
         x:Class="DHT.Desktop.Dialogs.TextBox.TextBoxDialog"
-        x:DataType="namespace:TextBoxDialogModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="500" SizeToContent="Height" CanResize="False"

app/Desktop/Main/AboutWindow.axaml

@@ -5,7 +5,6 @@
         xmlns:main="clr-namespace:DHT.Desktop.Main"
         mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="295"
         x:Class="DHT.Desktop.Main.AboutWindow"
-        x:DataType="main:AboutWindowModel"
         Title="About Discord History Tracker"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="480" Height="295" CanResize="False"

app/Desktop/Main/Controls/AttachmentFilterPanel.axaml

@@ -4,8 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d"
-             x:Class="DHT.Desktop.Main.Controls.AttachmentFilterPanel"
+             x:Class="DHT.Desktop.Main.Controls.AttachmentFilterPanel">
-             x:DataType="controls:AttachmentFilterPanelModel">
 
     <Design.DataContext>
         <controls:AttachmentFilterPanelModel />

app/Desktop/Main/Controls/MessageFilterPanel.axaml

@@ -4,8 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d"
-             x:Class="DHT.Desktop.Main.Controls.MessageFilterPanel"
+             x:Class="DHT.Desktop.Main.Controls.MessageFilterPanel">
-             x:DataType="controls:MessageFilterPanelModel">
 
     <Design.DataContext>
         <controls:MessageFilterPanelModel />

app/Desktop/Main/Controls/ServerConfigurationPanel.axaml

@@ -4,8 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d"
-             x:Class="DHT.Desktop.Main.Controls.ServerConfigurationPanel"
+             x:Class="DHT.Desktop.Main.Controls.ServerConfigurationPanel">
-             x:DataType="controls:ServerConfigurationPanelModel">
 
     <Design.DataContext>
         <controls:ServerConfigurationPanelModel />

app/Desktop/Main/Controls/StatusBar.axaml

@@ -4,8 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d"
-             x:Class="DHT.Desktop.Main.Controls.StatusBar"
+             x:Class="DHT.Desktop.Main.Controls.StatusBar">
-             x:DataType="controls:StatusBarModel">
 
     <Design.DataContext>
         <controls:StatusBarModel />

app/Desktop/Main/MainWindow.axaml

@@ -5,7 +5,6 @@
         xmlns:main="clr-namespace:DHT.Desktop.Main"
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
         x:Class="DHT.Desktop.Main.MainWindow"
-        x:DataType="main:MainWindowModel"
         Title="{Binding Title}"
         Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
         Width="800" Height="500"

app/Desktop/Main/Pages/AdvancedPage.axaml

@@ -5,8 +5,7 @@
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.AdvancedPage"
+             x:Class="DHT.Desktop.Main.Pages.AdvancedPage">
-             x:DataType="pages:AdvancedPageModel">
 
     <Design.DataContext>
         <pages:AdvancedPageModel />

app/Desktop/Main/Pages/AttachmentsPage.axaml

@@ -5,8 +5,7 @@
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.AttachmentsPage"
+             x:Class="DHT.Desktop.Main.Pages.AttachmentsPage">
-             x:DataType="pages:AttachmentsPageModel">
 
     <Design.DataContext>
         <pages:AttachmentsPageModel />
@@ -36,7 +35,7 @@
             <TextBlock Text="{Binding DownloadMessage}" Margin="10 0 0 0" VerticalAlignment="Center" DockPanel.Dock="Left" />
             <ProgressBar Value="{Binding DownloadProgress}" IsVisible="{Binding IsDownloading}" Margin="15 0" VerticalAlignment="Center" DockPanel.Dock="Right" />
         </DockPanel>
-        <controls:AttachmentFilterPanel DataContext="{Binding FilterModel}" IsEnabled="{Binding !IsDownloading, RelativeSource={RelativeSource AncestorType=pages:AttachmentsPageModel}}" />
+        <controls:AttachmentFilterPanel DataContext="{Binding FilterModel}" IsEnabled="{Binding !DataContext.IsDownloading, RelativeSource={RelativeSource AncestorType=UserControl}}" />
         <StackPanel Orientation="Vertical" Spacing="12">
             <Expander Header="Download Status" IsExpanded="True">
                 <DataGrid ItemsSource="{Binding StatisticsRows}" AutoGenerateColumns="False" CanUserReorderColumns="False" CanUserResizeColumns="False" CanUserSortColumns="False" IsReadOnly="True">

app/Desktop/Main/Pages/DatabasePage.axaml

@@ -4,8 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.DatabasePage"
+             x:Class="DHT.Desktop.Main.Pages.DatabasePage">
-             x:DataType="pages:DatabasePageModel">
 
     <Design.DataContext>
         <pages:DatabasePageModel />

app/Desktop/Main/Pages/DebugPage.axaml

@@ -4,8 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.DebugPage"
+             x:Class="DHT.Desktop.Main.Pages.DebugPage">
-             x:DataType="pages:DebugPageModel">
     
     <Design.DataContext>
         <pages:DebugPageModel />

app/Desktop/Main/Pages/TrackingPage.axaml

@@ -4,8 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.TrackingPage"
+             x:Class="DHT.Desktop.Main.Pages.TrackingPage">
-             x:DataType="pages:TrackingPageModel">
 
     <Design.DataContext>
         <pages:TrackingPageModel />

app/Desktop/Main/Pages/ViewerPage.axaml

@@ -5,8 +5,7 @@
              xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Pages.ViewerPage"
+             x:Class="DHT.Desktop.Main.Pages.ViewerPage">
-             x:DataType="pages:ViewerPageModel">
 
     <Design.DataContext>
         <pages:ViewerPageModel />

app/Desktop/Main/Pages/ViewerPageModel.cs

@@ -35,7 +35,7 @@ sealed class ViewerPageModel : BaseModel, IDisposable {
 		set => Change(ref hasFilters, value);
 	}
 
-	public MessageFilterPanelModel FilterModel { get; }
+	private MessageFilterPanelModel FilterModel { get; }
 
 	private readonly Window window;
 	private readonly IDatabaseFile db;

app/Desktop/Main/Screens/MainContentScreen.axaml

@@ -5,8 +5,7 @@
              xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
              xmlns:screens="clr-namespace:DHT.Desktop.Main.Screens"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Screens.MainContentScreen"
+             x:Class="DHT.Desktop.Main.Screens.MainContentScreen">
-             x:DataType="screens:MainContentScreenModel">
 
     <Design.DataContext>
         <screens:MainContentScreenModel />

app/Desktop/Main/Screens/WelcomeScreen.axaml

@@ -4,8 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              xmlns:screens="clr-namespace:DHT.Desktop.Main.Screens"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="DHT.Desktop.Main.Screens.WelcomeScreen"
+             x:Class="DHT.Desktop.Main.Screens.WelcomeScreen">
-             x:DataType="screens:WelcomeScreenModel">
 
     <Design.DataContext>
         <screens:WelcomeScreenModel />

app/Server/Database/Export/Snowflake.cs

@@ -1,3 +0,0 @@
-namespace DHT.Server.Database.Export; 
-
-readonly record struct Snowflake(ulong Id);

app/Server/Database/Export/SnowflakeJsonSerializer.cs

@@ -1,23 +0,0 @@
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace DHT.Server.Database.Export;
-
-sealed class SnowflakeJsonSerializer : JsonConverter<Snowflake> {
-	public override Snowflake Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-		return new Snowflake(ulong.Parse(reader.GetString()!));
-	}
-
-	public override void Write(Utf8JsonWriter writer, Snowflake value, JsonSerializerOptions options) {
-		writer.WriteStringValue(value.Id.ToString());
-	}
-
-	public override Snowflake ReadAsPropertyName(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
-		return new Snowflake(ulong.Parse(reader.GetString()!));
-	}
-
-	public override void WriteAsPropertyName(Utf8JsonWriter writer, Snowflake value, JsonSerializerOptions options) {
-		writer.WritePropertyName(value.Id.ToString());
-	}
-}

app/Server/Database/Export/ViewerJson.cs

@@ -1,93 +0,0 @@
-using System.Collections.Generic;
-using System.Text.Json.Serialization;
-
-namespace DHT.Server.Database.Export;
-
-sealed class ViewerJson {
-	public required JsonMeta Meta { get; init; }
-	public required Dictionary<Snowflake, Dictionary<Snowflake, JsonMessage>> Data { get; init; }
-
-	public sealed class JsonMeta {
-		public required Dictionary<Snowflake, JsonUser> Users { get; init; }
-		public required List<Snowflake> Userindex { get; init; }
-		public required List<JsonServer> Servers { get; init; }
-		public required Dictionary<Snowflake, JsonChannel> Channels { get; init; }
-	}
-	
-	public sealed class JsonUser {
-		public required string Name { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string? Avatar { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string? Tag { get; init; }
-	}
-
-	public sealed class JsonServer {
-		public required string Name { get; init; }
-		public required string Type { get; init; }
-	}
-
-	public sealed class JsonChannel {
-		public required int Server { get; init; }
-		public required string Name { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string? Parent { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public int? Position { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string? Topic { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public bool? Nsfw { get; init; }
-	}
-
-	public sealed class JsonMessage {
-		public required int U { get; init; }
-		public required long T { get; init; }
-
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string? M { get; init; }
-
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public long? Te { get; init; }
-
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string? R { get; init; }
-
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public JsonMessageAttachment[]? A { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string[]? E { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public JsonMessageReaction[]? Re { get; init; }
-	}
-
-	public sealed class JsonMessageAttachment {
-		public required string Url { get; init; }
-		public required string Name { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public int? Width { get; set; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public int? Height { get; set; }
-	}
-
-	public sealed class JsonMessageReaction {
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string? Id { get; init; }
-		
-		[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
-		public string? N { get; init; }
-
-		public required bool A { get; init; }
-		public required int C { get; init; }
-	}
-}

app/Server/Database/Export/ViewerJsonContext.cs

@@ -1,11 +0,0 @@
-using System.Text.Json.Serialization;
-
-namespace DHT.Server.Database.Export;
-
-[JsonSourceGenerationOptions(
-	Converters = new [] { typeof(SnowflakeJsonSerializer) },
-	PropertyNamingPolicy = JsonKnownNamingPolicy.CamelCase,
-	GenerationMode = JsonSourceGenerationMode.Default
-)]
-[JsonSerializable(typeof(ViewerJson))]
-sealed partial class ViewerJsonContext : JsonSerializerContext {}

app/Server/Database/Export/ViewerJsonExport.cs

@@ -42,28 +42,26 @@ public static class ViewerJsonExport {
 
 		perf.Step("Collect database data");
 
-		var value = new ViewerJson {
+		var value = new {
-			Meta = new ViewerJson.JsonMeta {
+			meta = new { users, userindex, servers, channels },
-				Users = users,
+			data = GenerateMessageList(includedMessages, userIndices, strategy),
-				Userindex = userindex,
-				Servers = servers,
-				Channels = channels
-			},
-			Data = GenerateMessageList(includedMessages, userIndices, strategy)
 		};
 
 		perf.Step("Generate value object");
 
-		await JsonSerializer.SerializeAsync(stream, value, ViewerJsonContext.Default.ViewerJson);
+		var opts = new JsonSerializerOptions();
+		opts.Converters.Add(new ViewerJsonSnowflakeSerializer());
+
+		await JsonSerializer.SerializeAsync(stream, value, opts);
 
 		perf.Step("Serialize to JSON");
 		perf.End();
 	}
 
-	private static Dictionary<Snowflake, ViewerJson.JsonUser> GenerateUserList(IDatabaseFile db, HashSet<ulong> userIds, out List<Snowflake> userindex, out Dictionary<ulong, int> userIndices) {
+	private static Dictionary<string, object> GenerateUserList(IDatabaseFile db, HashSet<ulong> userIds, out List<string> userindex, out Dictionary<ulong, object> userIndices) {
-		var users = new Dictionary<Snowflake, ViewerJson.JsonUser>();
+		var users = new Dictionary<string, object>();
-		userindex = new List<Snowflake>();
+		userindex = new List<string>();
-		userIndices = new Dictionary<ulong, int>();
+		userIndices = new Dictionary<ulong, object>();
 
 		foreach (var user in db.GetAllUsers()) {
 			var id = user.Id;
@@ -71,23 +69,30 @@ public static class ViewerJsonExport {
 				continue;
 			}
 
-			var idSnowflake = new Snowflake(id);
+			var obj = new Dictionary<string, object> {
-			userIndices[id] = users.Count;
+				["name"] = user.Name
-			userindex.Add(idSnowflake);
-			
-			users[idSnowflake] = new ViewerJson.JsonUser {
-				Name = user.Name,
-				Avatar = user.AvatarUrl,
-				Tag = user.Discriminator
 			};
+
+			if (user.AvatarUrl != null) {
+				obj["avatar"] = user.AvatarUrl;
+			}
+
+			if (user.Discriminator != null) {
+				obj["tag"] = user.Discriminator;
+			}
+
+			var idStr = id.ToString();
+			userIndices[id] = users.Count;
+			userindex.Add(idStr);
+			users[idStr] = obj;
 		}
 
 		return users;
 	}
 
-	private static List<ViewerJson.JsonServer> GenerateServerList(IDatabaseFile db, HashSet<ulong> serverIds, out Dictionary<ulong, int> serverIndices) {
+	private static List<object> GenerateServerList(IDatabaseFile db, HashSet<ulong> serverIds, out Dictionary<ulong, object> serverIndices) {
-		var servers = new List<ViewerJson.JsonServer>();
+		var servers = new List<object>();
-		serverIndices = new Dictionary<ulong, int>();
+		serverIndices = new Dictionary<ulong, object>();
 
 		foreach (var server in db.GetAllServers()) {
 			var id = server.Id;
@@ -96,78 +101,113 @@ public static class ViewerJsonExport {
 			}
 
 			serverIndices[id] = servers.Count;
-			
+			servers.Add(new Dictionary<string, object> {
-			servers.Add(new ViewerJson.JsonServer {
+				["name"] = server.Name,
-				Name = server.Name,
+				["type"] = ServerTypes.ToJsonViewerString(server.Type),
-				Type = ServerTypes.ToJsonViewerString(server.Type)
 			});
 		}
 
 		return servers;
 	}
 
-	private static Dictionary<Snowflake, ViewerJson.JsonChannel> GenerateChannelList(List<Channel> includedChannels, Dictionary<ulong, int> serverIndices) {
+	private static Dictionary<string, object> GenerateChannelList(List<Channel> includedChannels, Dictionary<ulong, object> serverIndices) {
-		var channels = new Dictionary<Snowflake, ViewerJson.JsonChannel>();
+		var channels = new Dictionary<string, object>();
 
 		foreach (var channel in includedChannels) {
-			var channelIdSnowflake = new Snowflake(channel.Id);
+			var obj = new Dictionary<string, object> {
-			
+				["server"] = serverIndices[channel.Server],
-			channels[channelIdSnowflake] = new ViewerJson.JsonChannel {
+				["name"] = channel.Name,
-				Server = serverIndices[channel.Server],
-				Name = channel.Name,
-				Parent = channel.ParentId?.ToString(),
-				Position = channel.Position,
-				Topic = channel.Topic,
-				Nsfw = channel.Nsfw
 			};
+
+			if (channel.ParentId != null) {
+				obj["parent"] = channel.ParentId;
+			}
+
+			if (channel.Position != null) {
+				obj["position"] = channel.Position;
+			}
+
+			if (channel.Topic != null) {
+				obj["topic"] = channel.Topic;
+			}
+
+			if (channel.Nsfw != null) {
+				obj["nsfw"] = channel.Nsfw;
+			}
+
+			channels[channel.Id.ToString()] = obj;
 		}
 
 		return channels;
 	}
 
-	private static Dictionary<Snowflake, Dictionary<Snowflake, ViewerJson.JsonMessage>> GenerateMessageList(List<Message> includedMessages, Dictionary<ulong, int> userIndices, IViewerExportStrategy strategy) {
+	private static Dictionary<string, Dictionary<string, object>> GenerateMessageList( List<Message> includedMessages, Dictionary<ulong, object> userIndices, IViewerExportStrategy strategy) {
-		var data = new Dictionary<Snowflake, Dictionary<Snowflake, ViewerJson.JsonMessage>>();
+		var data = new Dictionary<string, Dictionary<string, object>>();
 
 		foreach (var grouping in includedMessages.GroupBy(static message => message.Channel)) {
-			var channelIdSnowflake = new Snowflake(grouping.Key);
+			var channel = grouping.Key.ToString();
-			var channelData = new Dictionary<Snowflake, ViewerJson.JsonMessage>();
+			var channelData = new Dictionary<string, object>();
 
 			foreach (var message in grouping) {
-				var messageIdSnowflake = new Snowflake(message.Id);
+				var obj = new Dictionary<string, object> {
+					["u"] = userIndices[message.Sender],
+					["t"] = message.Timestamp,
+				};
 
-				channelData[messageIdSnowflake] = new ViewerJson.JsonMessage {
+				if (!string.IsNullOrEmpty(message.Text)) {
-					U = userIndices[message.Sender],
+					obj["m"] = message.Text;
-					T = message.Timestamp,
+				}
-					M = string.IsNullOrEmpty(message.Text) ? null : message.Text,
-					Te = message.EditTimestamp,
-					R = message.RepliedToId?.ToString(),
 
-					A = message.Attachments.IsEmpty ? null : message.Attachments.Select(attachment => {
+				if (message.EditTimestamp != null) {
-						var a = new ViewerJson.JsonMessageAttachment {
+					obj["te"] = message.EditTimestamp;
-							Url = strategy.GetAttachmentUrl(attachment),
+				}
-							Name = Uri.TryCreate(attachment.NormalizedUrl, UriKind.Absolute, out var uri) ? Path.GetFileName(uri.LocalPath) : attachment.NormalizedUrl
+
+				if (message.RepliedToId != null) {
+					obj["r"] = message.RepliedToId.Value;
+				}
+
+				if (!message.Attachments.IsEmpty) {
+					obj["a"] = message.Attachments.Select(attachment => {
+						var a = new Dictionary<string, object> {
+							{ "url", strategy.GetAttachmentUrl(attachment) },
+							{ "name", Uri.TryCreate(attachment.NormalizedUrl, UriKind.Absolute, out var uri) ? Path.GetFileName(uri.LocalPath) : attachment.NormalizedUrl },
 						};
 
 						if (attachment is { Width: not null, Height: not null }) {
-							a.Width = attachment.Width;
+							a["width"] = attachment.Width;
-							a.Height = attachment.Height;
+							a["height"] = attachment.Height;
 						}
 
 						return a;
-					}).ToArray(),
+					}).ToArray();
+				}
 
-					E = message.Embeds.IsEmpty ? null : message.Embeds.Select(static embed => embed.Json).ToArray(),
+				if (!message.Embeds.IsEmpty) {
+					obj["e"] = message.Embeds.Select(static embed => embed.Json).ToArray();
+				}
 
-					Re = message.Reactions.IsEmpty ? null : message.Reactions.Select(static reaction => new ViewerJson.JsonMessageReaction {
+				if (!message.Reactions.IsEmpty) {
-						Id = reaction.EmojiId?.ToString(),
+					obj["re"] = message.Reactions.Select(static reaction => {
-						N = reaction.EmojiName,
+						var r = new Dictionary<string, object>();
-						A = reaction.EmojiFlags.HasFlag(EmojiFlags.Animated),
+
-						C = reaction.Count
+						if (reaction.EmojiId != null) {
-					}).ToArray()
+							r["id"] = reaction.EmojiId.Value;
-				};
+						}
+
+						if (reaction.EmojiName != null) {
+							r["n"] = reaction.EmojiName;
+						}
+
+						r["a"] = reaction.EmojiFlags.HasFlag(EmojiFlags.Animated);
+						r["c"] = reaction.Count;
+						return r;
+					}).ToArray();
+				}
+
+				channelData[message.Id.ToString()] = obj;
 			}
 
-			data[channelIdSnowflake] = channelData;
+			data[channel] = channelData;
 		}
 
 		return data;

app/Server/Database/Export/ViewerJsonSnowflakeSerializer.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace DHT.Server.Database.Export;
+
+sealed class ViewerJsonSnowflakeSerializer : JsonConverter<ulong> {
+	public override ulong Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) {
+		return ulong.Parse(reader.GetString()!);
+	}
+
+	public override void Write(Utf8JsonWriter writer, ulong value, JsonSerializerOptions options) {
+		writer.WriteStringValue(value.ToString());
+	}
+}