Add option to re-enable Ctrl+Shift+I in the Discord app

app/Desktop/Discord/DiscordAppSettings.cs

@@ -0,0 +1,119 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text.Json;
+using System.Threading.Tasks;
+using DHT.Utils.Logging;
+using static System.Environment.SpecialFolder;
+using static System.Environment.SpecialFolderOption;
+
+namespace DHT.Desktop.Discord {
+	static class DiscordAppSettings {
+		private static readonly Log Log = Log.ForType(typeof(DiscordAppSettings));
+
+		private const string JsonKeyDevTools = "DANGEROUS_ENABLE_DEVTOOLS_ONLY_ENABLE_IF_YOU_KNOW_WHAT_YOURE_DOING";
+
+		public static string JsonFilePath { get; }
+		private static string JsonBackupFilePath { get; }
+
+		[SuppressMessage("ReSharper", "ConvertIfStatementToConditionalTernaryExpression")]
+		static DiscordAppSettings() {
+			string rootFolder;
+
+			if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) {
+				rootFolder = Path.Combine(Environment.GetFolderPath(ApplicationData, DoNotVerify), "Discord");
+			}
+			else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+				rootFolder = Path.Combine(Environment.GetFolderPath(UserProfile, DoNotVerify), "Library", "Application Support", "Discord");
+			}
+			else {
+				rootFolder = Path.Combine(Environment.GetFolderPath(ApplicationData, DoNotVerify), "discord");
+			}
+
+			JsonFilePath = Path.Combine(rootFolder, "settings.json");
+			JsonBackupFilePath = JsonFilePath + ".bak";
+		}
+
+		public static async Task<bool?> AreDevToolsEnabled() {
+			try {
+				return AreDevToolsEnabled(await ReadSettingsJson());
+			} catch (Exception) {
+				return null;
+			}
+		}
+
+		private static bool AreDevToolsEnabled(Dictionary<string, object?> json) {
+			return json.TryGetValue(JsonKeyDevTools, out var value) && value is JsonElement { ValueKind: JsonValueKind.True };
+		}
+
+		public static async Task<SettingsJsonResult> ConfigureDevTools(bool enable) {
+			Dictionary<string, object?> json;
+
+			try {
+				json = await ReadSettingsJson();
+			} catch (FileNotFoundException) {
+				return SettingsJsonResult.FileNotFound;
+			} catch (JsonException) {
+				return SettingsJsonResult.InvalidJson;
+			} catch (Exception e) {
+				Log.Error(e);
+				return SettingsJsonResult.ReadError;
+			}
+
+			if (enable == AreDevToolsEnabled(json)) {
+				return SettingsJsonResult.AlreadySet;
+			}
+
+			if (enable) {
+				json[JsonKeyDevTools] = true;
+			}
+			else {
+				json.Remove(JsonKeyDevTools);
+			}
+
+			try {
+				if (!File.Exists(JsonBackupFilePath)) {
+					File.Copy(JsonFilePath, JsonBackupFilePath);
+				}
+
+				await WriteSettingsJson(json);
+			} catch (Exception e) {
+				Log.Error("An error occurred when writing settings file.");
+				Log.Error(e);
+
+				if (File.Exists(JsonBackupFilePath)) {
+					try {
+						File.Move(JsonBackupFilePath, JsonFilePath, true);
+						Log.Info("Restored settings file from backup.");
+					} catch (Exception e2) {
+						Log.Error("Cannot restore settings file from backup.");
+						Log.Error(e2);
+					}
+				}
+
+				return SettingsJsonResult.WriteError;
+			}
+
+			try {
+				File.Delete(JsonBackupFilePath);
+			} catch (Exception e) {
+				Log.Error("Cannot delete backup file.");
+				Log.Error(e);
+			}
+
+			return SettingsJsonResult.Success;
+		}
+
+		private static async Task<Dictionary<string, object?>> ReadSettingsJson() {
+			await using var stream = new FileStream(JsonFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
+			return await JsonSerializer.DeserializeAsync<Dictionary<string, object?>?>(stream) ?? throw new JsonException();
+		}
+
+		private static async Task WriteSettingsJson(Dictionary<string, object?> json) {
+			await using var stream = new FileStream(JsonFilePath, FileMode.Truncate, FileAccess.Write, FileShare.None);
+			await JsonSerializer.SerializeAsync(stream, json, new JsonSerializerOptions { WriteIndented = true });
+		}
+	}
+}

app/Desktop/Discord/SettingsJsonResult.cs

@@ -0,0 +1,10 @@
+namespace DHT.Desktop.Discord {
+	enum SettingsJsonResult {
+		Success,
+		AlreadySet,
+		FileNotFound,
+		ReadError,
+		InvalidJson,
+		WriteError
+	}
+}

app/Desktop/Main/MainContentScreenModel.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Threading.Tasks;
 using Avalonia.Controls;
 using DHT.Desktop.Main.Controls;
 using DHT.Desktop.Main.Pages;
@@ -45,8 +46,8 @@ namespace DHT.Desktop.Main {
 			StatusBarModel.CurrentStatus = ServerLauncher.IsRunning ? StatusBarModel.Status.Ready : StatusBarModel.Status.Stopped;
 		}
 
-		public void Initialize() {
-			TrackingPageModel.Initialize();
+		public async Task Initialize() {
+			await TrackingPageModel.Initialize();
 		}
 
 		private void TrackingPageModelOnServerStatusChanged(object? sender, StatusBarModel.Status e) {

app/Desktop/Main/MainWindowModel.cs

@@ -69,7 +69,7 @@ namespace DHT.Desktop.Main {
 			}
 		}
 
-		private void WelcomeScreenModelOnPropertyChanged(object? sender, PropertyChangedEventArgs e) {
+		private async void WelcomeScreenModelOnPropertyChanged(object? sender, PropertyChangedEventArgs e) {
 			if (e.PropertyName == nameof(WelcomeScreenModel.Db)) {
 				if (MainContentScreenModel != null) {
 					MainContentScreenModel.DatabaseClosed -= MainContentScreenModelOnDatabaseClosed;
@@ -87,7 +87,7 @@ namespace DHT.Desktop.Main {
 				else {
 					Title = Path.GetFileName(db.Path) + " - " + DefaultTitle;
 					MainContentScreenModel = new MainContentScreenModel(window, db);
-					MainContentScreenModel.Initialize();
+					await MainContentScreenModel.Initialize();
 					MainContentScreenModel.DatabaseClosed += MainContentScreenModelOnDatabaseClosed;
 					MainContentScreen = new MainContentScreen { DataContext = MainContentScreenModel };
 					OnPropertyChanged(nameof(MainContentScreen));

app/Desktop/Main/Pages/TrackingPage.axaml

@@ -23,13 +23,13 @@
 
     <StackPanel Spacing="10">
         <TextBlock TextWrapping="Wrap">
-            To start tracking messages, copy the tracking script and paste it into the console of either the Discord app (Ctrl+Shift+I), or your browser with Discord open.
+            To start tracking messages, copy the tracking script and paste it into the console of either the Discord app, or your browser. The console is usually opened by pressing Ctrl+Shift+I.
         </TextBlock>
-        <StackPanel Orientation="Horizontal" Spacing="10">
+        <StackPanel DockPanel.Dock="Left" Orientation="Horizontal" Spacing="10">
             <Button x:Name="CopyTrackingScript" Click="CopyTrackingScriptButton_OnClick">Copy Tracking Script</Button>
-            <Button Command="{Binding OnClickToggleButton}" Content="{Binding ToggleButtonText}" IsEnabled="{Binding IsToggleButtonEnabled}" />
+            <Button Command="{Binding OnClickToggleTrackingButton}" Content="{Binding ToggleTrackingButtonText}" IsEnabled="{Binding IsToggleButtonEnabled}" />
         </StackPanel>
-        <Expander Header="Advanced Settings">
+        <Expander Header="Advanced Tracking Settings">
             <StackPanel Spacing="10">
                 <TextBlock TextWrapping="Wrap">
                     The following settings determine how the tracking script communicates with this application. If you change them, you will have to copy and apply the tracking script again.
@@ -55,6 +55,10 @@
                 </StackPanel>
             </StackPanel>
         </Expander>
+        <TextBlock TextWrapping="Wrap" Margin="0 15 0 0">
+            By default, the Discord app does not allow opening the console. The button below will change a hidden setting in the Discord app that controls whether the Ctrl+Shift+I shortcut is enabled.
+        </TextBlock>
+        <Button DockPanel.Dock="Right" Command="{Binding OnClickToggleAppDevTools}" Content="{Binding ToggleAppDevToolsButtonText}" IsEnabled="{Binding IsToggleAppDevToolsButtonEnabled}" />
     </StackPanel>
 
 </UserControl>

app/Desktop/Main/Pages/TrackingPageModel.cs

@@ -4,6 +4,7 @@ using System.Web;
 using Avalonia;
 using Avalonia.Controls;
 using DHT.Desktop.Dialogs.Message;
+using DHT.Desktop.Discord;
 using DHT.Desktop.Main.Controls;
 using DHT.Server.Database;
 using DHT.Server.Service;
@@ -40,14 +41,36 @@ namespace DHT.Desktop.Main.Pages {
 
 		public bool HasMadeChanges => ServerPort != InputPort || ServerToken != InputToken;
 
-		private bool isToggleButtonEnabled = true;
+		private bool isToggleTrackingButtonEnabled = true;
 
 		public bool IsToggleButtonEnabled {
-			get => isToggleButtonEnabled;
-			set => Change(ref isToggleButtonEnabled, value);
+			get => isToggleTrackingButtonEnabled;
+			set => Change(ref isToggleTrackingButtonEnabled, value);
 		}
 
-		public string ToggleButtonText => ServerLauncher.IsRunning ? "Pause Tracking" : "Resume Tracking";
+		public string ToggleTrackingButtonText => ServerLauncher.IsRunning ? "Pause Tracking" : "Resume Tracking";
+
+		private bool areDevToolsEnabled;
+
+		private bool AreDevToolsEnabled {
+			get => areDevToolsEnabled;
+			set {
+				Change(ref areDevToolsEnabled, value);
+				OnPropertyChanged(nameof(ToggleAppDevToolsButtonText));
+			}
+		}
+
+		public bool IsToggleAppDevToolsButtonEnabled { get; private set; } = true;
+
+		public string ToggleAppDevToolsButtonText {
+			get {
+				if (!IsToggleAppDevToolsButtonEnabled) {
+					return "Unavailable";
+				}
+				
+				return AreDevToolsEnabled ? "Disable Ctrl+Shift+I" : "Enable Ctrl+Shift+I";
+			}
+		}
 
 		public event EventHandler<StatusBarModel.Status>? ServerStatusChanged;
 
@@ -62,7 +85,7 @@ namespace DHT.Desktop.Main.Pages {
 			this.db = db;
 		}
 
-		public void Initialize() {
+		public async Task Initialize() {
 			ServerLauncher.ServerStatusChanged += ServerLauncherOnServerStatusChanged;
 			ServerLauncher.ServerManagementExceptionCaught += ServerLauncherOnServerManagementExceptionCaught;
 
@@ -70,6 +93,15 @@ namespace DHT.Desktop.Main.Pages {
 				string token = ServerToken;
 				ServerLauncher.Relaunch(port, token, db);
 			}
+
+			bool? devToolsEnabled = await DiscordAppSettings.AreDevToolsEnabled();
+			if (devToolsEnabled.HasValue) {
+				AreDevToolsEnabled = devToolsEnabled.Value;
+			}
+			else {
+				IsToggleAppDevToolsButtonEnabled = false;
+				OnPropertyChanged(nameof(IsToggleAppDevToolsButtonEnabled));
+			}
 		}
 
 		public void Dispose() {
@@ -78,6 +110,17 @@ namespace DHT.Desktop.Main.Pages {
 			ServerLauncher.Stop();
 		}
 
+		private void ServerLauncherOnServerStatusChanged(object? sender, EventArgs e) {
+			ServerStatusChanged?.Invoke(this, ServerLauncher.IsRunning ? StatusBarModel.Status.Ready : StatusBarModel.Status.Stopped);
+			OnPropertyChanged(nameof(ToggleTrackingButtonText));
+			IsToggleButtonEnabled = true;
+		}
+
+		private async void ServerLauncherOnServerManagementExceptionCaught(object? sender, Exception ex) {
+			Log.Error(ex);
+			await Dialog.ShowOk(window, "Server Error", ex.Message);
+		}
+
 		private async Task<bool> StartServer() {
 			if (!int.TryParse(InputPort, out int port) || port is < 0 or > 65535) {
 				await Dialog.ShowOk(window, "Invalid Port", "Port must be a number between 0 and 65535.");
@@ -96,7 +139,7 @@ namespace DHT.Desktop.Main.Pages {
 			ServerLauncher.Stop();
 		}
 
-		public async Task<bool> OnClickToggleButton() {
+		public async Task<bool> OnClickToggleTrackingButton() {
 			if (ServerLauncher.IsRunning) {
 				StopServer();
 				return true;
@@ -134,15 +177,42 @@ namespace DHT.Desktop.Main.Pages {
 			InputToken = ServerToken;
 		}
 
-		private void ServerLauncherOnServerStatusChanged(object? sender, EventArgs e) {
-			ServerStatusChanged?.Invoke(this, ServerLauncher.IsRunning ? StatusBarModel.Status.Ready : StatusBarModel.Status.Stopped);
-			OnPropertyChanged(nameof(ToggleButtonText));
-			IsToggleButtonEnabled = true;
-		}
+		public async void OnClickToggleAppDevTools() {
+			const string DialogTitle = "Discord App Settings File";
+			
+			bool oldState = AreDevToolsEnabled;
+			bool newState = !oldState;
 
-		private async void ServerLauncherOnServerManagementExceptionCaught(object? sender, Exception ex) {
-			Log.Error(ex);
-			await Dialog.ShowOk(window, "Server Error", ex.Message);
+			switch (await DiscordAppSettings.ConfigureDevTools(newState)) {
+				case SettingsJsonResult.Success:
+					AreDevToolsEnabled = newState;
+					await Dialog.ShowOk(window, DialogTitle, "Ctrl+Shift+I was " + (newState ? "enabled." : "disabled.") + " Restart the Discord app for the change to take effect.");
+					break;
+				
+				case SettingsJsonResult.AlreadySet:
+					await Dialog.ShowOk(window, DialogTitle, "Ctrl+Shift+I is already " + (newState ? "enabled." : "disabled."));
+					AreDevToolsEnabled = newState;
+					break;
+
+				case SettingsJsonResult.FileNotFound:
+					await Dialog.ShowOk(window, DialogTitle, "Cannot find the settings file:\n" + DiscordAppSettings.JsonFilePath);
+					break;
+
+				case SettingsJsonResult.ReadError:
+					await Dialog.ShowOk(window, DialogTitle, "Cannot read the settings file:\n" + DiscordAppSettings.JsonFilePath);
+					break;
+
+				case SettingsJsonResult.InvalidJson:
+					await Dialog.ShowOk(window, DialogTitle, "Unknown format of the settings file:\n" + DiscordAppSettings.JsonFilePath);
+					break;
+
+				case SettingsJsonResult.WriteError:
+					await Dialog.ShowOk(window, DialogTitle, "Cannot save the settings file:\n" + DiscordAppSettings.JsonFilePath);
+					break;
+
+				default:
+					throw new ArgumentOutOfRangeException();
+			}
 		}
 	}
 }