Initial Build

Multiarch docker build
Unified logging (replaced some crashes with error logs)
Replace all console writes with log formatted writes.

Changelog: added

MinecraftDiscordBot/ConnectedComputer.cs

@@ -15,12 +15,11 @@ public class ConnectedComputer {
     }
 
     private void OnMessage(string message) {
-        var msg = JsonConvert.DeserializeObject<ReplyMessage>(message);
-        if (msg is null) throw new InvalidProgramException("Unexpected Message!");
+        if (JsonConvert.DeserializeObject<ReplyMessage>(message) is not ReplyMessage msg) return;
         IChunkWaiter? waiter;
         lock (_syncRoot) {
             if (!_waits.TryGetValue(msg.AnswerId, out waiter)) {
-                Console.WriteLine($"Invalid wait id '{msg.AnswerId}'!");
+                Program.LogWarning("Socket", $"Invalid wait id '{msg.AnswerId}'!");
                 return;
             }
         }
@@ -62,9 +61,16 @@ public class ConnectedComputer {
         public void AddChunk(int chunkId, int totalChunks, string value) {
             lock (_syncRoot) {
                 if (_chunks is null) _chunks = new string[totalChunks];
-                else if (_chunks.Length != totalChunks) throw new InvalidOperationException("Different numbers of chunks in same message ID!");
+                else if (_chunks.Length != totalChunks) {
+                    Program.LogError(Program.WebSocketSource, new InvalidOperationException("Different numbers of chunks in same message ID!"));
+                    return;
+                }
                 ref string? chunk = ref _chunks[chunkId - 1]; // Lua 1-indexed
-                chunk = chunk is null ? value : throw new InvalidOperationException($"Chunk with ID {chunkId} was already received!");
+                if (chunk is not null) {
+                    Program.LogError(Program.WebSocketSource, new InvalidOperationException($"Chunk with ID {chunkId} was already received!"));
+                    return;
+                }
+                chunk = value;
             }
             if (++_receivedChunks == totalChunks) FinalizeResult(_chunks);
         }
@@ -75,13 +81,13 @@ public class ConnectedComputer {
     }
 
     protected int GetFreeId() {
-        int i = 10;
-        while (i-- >= 0) {
+        var attempts = 0;
+        while (true) {
             var id = _rnd.Next();
             if (!_waits.ContainsKey(id))
                 return id;
+            Program.LogWarning(Program.WebSocketSource, $"Could not get a free ID after {++attempts} attempts!");
         }
-        throw new InvalidOperationException("Could not get a free ID after many attempts!");
     }
 
     protected ChunkWaiter<T> GetWaiter<T>(Func<string, T> resultParser, CancellationToken ct) {
@@ -285,9 +291,7 @@ public class ModItemId {
         if (colon < 0) throw new ArgumentException("Invalid mod item id!", nameof(name));
         ModName = name[..colon];
         ModItem = name[(colon + 1)..];
-#if DEBUG
         if (ToString() != name) throw new InvalidProgramException("Bad Parsing!");
-#endif
     }
     public override string ToString() => $"{ModName}:{ModItem}";
     public string ModName { get; }

MinecraftDiscordBot/Dockerfile

@@ -3,16 +3,16 @@
 FROM mcr.microsoft.com/dotnet/runtime:6.0 AS base
 WORKDIR /app
 
-FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
+FROM mcr.microsoft.com/dotnet/sdk:6.0-bullseye-slim-amd64 AS build
 WORKDIR /src
 COPY ["MinecraftDiscordBot/MinecraftDiscordBot.csproj", "MinecraftDiscordBot/"]
 RUN dotnet restore "MinecraftDiscordBot/MinecraftDiscordBot.csproj"
 COPY . .
 WORKDIR "/src/MinecraftDiscordBot"
-RUN dotnet build "MinecraftDiscordBot.csproj" -c Release -o /app/build
+RUN dotnet build "MinecraftDiscordBot.csproj" -c Release -o /app/build /p:UseAppHost=false
 
 FROM build AS publish
-RUN dotnet publish "MinecraftDiscordBot.csproj" -c Release -o /app/publish
+RUN dotnet publish "MinecraftDiscordBot.csproj" -c Release -o /app/publish /p:UseAppHost=false
 
 FROM base AS final
 WORKDIR /app

MinecraftDiscordBot/MinecraftDiscordBot.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -9,10 +9,15 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="CommandLineParser" Version="2.8.0" />
     <PackageReference Include="Discord.Net" Version="3.1.0" />
     <PackageReference Include="Fleck" Version="1.2.0" />
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.14.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Properties\" />
+  </ItemGroup>
+
 </Project>

MinecraftDiscordBot/Program.cs

@@ -6,103 +6,138 @@ using Fleck;
 using Newtonsoft.Json;
 using System.Collections.Concurrent;
 using System.Reflection;
+using System.Runtime.CompilerServices;
 
 namespace MinecraftDiscordBot;
 
-public class Program {
-    private const string WebSocketSource = "WebSocket";
-    private readonly object _logLock = new();
+public class Program : IDisposable {
+    public const string WebSocketSource = "WebSocket";
+    public const string BotSource = "Bot";
+    private static readonly object LogLock = new();
     private readonly DiscordSocketClient _client = new(new() {
-        LogLevel = LogSeverity.Verbose
+        LogLevel = LogSeverity.Verbose,
+        GatewayIntents = GatewayIntents.AllUnprivileged & ~(GatewayIntents.GuildScheduledEvents | GatewayIntents.GuildInvites)
     });
     private readonly WebSocketServer _wssv;
     private readonly BotConfiguration _config;
     private readonly HashSet<ulong> _whitelistedChannels;
     private readonly ConcurrentDictionary<Guid, ConnectedComputer> _connections = new();
     private static readonly char[] WhiteSpace = new char[] { '\t', '\n', ' ', '\r' };
+    public ITextChannel[] _channels = Array.Empty<ITextChannel>();
     private RefinedStorageComputer? _rsSystem = null;
+    private bool disposedValue;
 
+    public RefinedStorageComputer? RsSystem {
+        get => _rsSystem; set {
+            if (_rsSystem != value) {
+                _rsSystem = value;
+                _ = Task.Run(() => Broadcast(i => i.SendMessageAsync(value is null
+                    ? $"The Refined Storage went offline. Please check the server!"
+                    : $"The Refined Storage is back online!")));
+            }
+        }
+    }
+
+    private async Task Broadcast(Func<ITextChannel, Task<IUserMessage>> message) => _ = await Task.WhenAll(_channels.Select(message));
     public Program(BotConfiguration config) {
         _config = config;
-        _client.Log += Log;
+        _client.Log += LogAsync;
         _client.MessageReceived += (msg) => DiscordMessageReceived(msg);
         _wssv = new WebSocketServer($"ws://0.0.0.0:{config.Port}") {
             RestartAfterListenError = true
         };
+        FleckLog.LogAction = LogWebSocket;
         _whitelistedChannels = config.Channels.ToHashSet();
     }
 
+    private void LogWebSocket(LogLevel level, string message, Exception exception) => Log(new(level switch {
+        LogLevel.Debug => LogSeverity.Debug,
+        LogLevel.Info => LogSeverity.Info,
+        LogLevel.Warn => LogSeverity.Warning,
+        LogLevel.Error => LogSeverity.Error,
+        _ => LogSeverity.Critical // Unknown logging states should behave critical
+    }, WebSocketSource, message, exception));
+
+
     public static Task<int> Main(string[] args)
         => JsonConvert.DeserializeObject<BotConfiguration>(File.ReadAllText("config.json")) is BotConfiguration config
             ? new Program(config).RunAsync()
             : throw new InvalidProgramException("Configuration file missing!");
 
     public async Task<int> RunAsync() {
-        _wssv.Start(socket => {
-            socket.OnOpen = async () => await SocketOpened(socket);
-            socket.OnClose = async () => await SocketClosed(socket);
-            socket.OnMessage = async message => await SocketReceived(socket, message);
-        });
         await _client.LoginAsync(TokenType.Bot, _config.Token);
         await _client.StartAsync();
-#if !DEBUG
         await VerifyTextChannels();
-#endif
+        StartWebSocketServer();
 
         // Block this task until the program is closed.
         await Task.Delay(-1);
         return 0;
     }
 
-    private async Task VerifyTextChannels() {
-        var channels = await Task.WhenAll(_whitelistedChannels.Select(id => _client.GetChannelAsync(id).AsTask()).ToArray());
-        await Task.WhenAll(channels.Where(i => i is ITextChannel { Guild: RestGuild }).Select(i => ((RestGuild)((ITextChannel)i).Guild).UpdateAsync()));
-        foreach (var channel in channels) {
-            if (channel is ITextChannel tchannel) Console.WriteLine($"Whitelisted in channel: {channel.Name} [{channel.Id}] on server {tchannel.Guild.Name} [{tchannel.Guild.Id}]");
-            else throw new InvalidProgramException($"Cannot use this bot on non-text channel {channel.Name} [{channel.Id}]!");
+    private void StartWebSocketServer() => _wssv.Start(socket => {
+        socket.OnOpen = async () => await SocketOpened(socket);
+        socket.OnClose = async () => await SocketClosed(socket);
+        socket.OnMessage = async message => await SocketReceived(socket, message);
+    });
+    private async IAsyncEnumerable<ITextChannel> GetValidChannels(IEnumerable<ulong> ids) {
+        foreach (var channelId in ids) {
+            var channel = await _client.GetChannelAsync(channelId);
+            if (channel is not ITextChannel textChannel) {
+                if (channel is null) await LogWarning(BotSource, $"Channel with id [{channelId}] does not exist!");
+                else await LogWarning(BotSource, $"Channel is not a text channels and will not be used: {channel.Name} [{channel.Id}]!");
+                continue;
+            }
+
+            if (textChannel.Guild is RestGuild guild) {
+                await guild.UpdateAsync();
+                await LogInfo(BotSource, $"Whitelisted in channel: {channel.Name} [{channel.Id}] on server {guild.Name} [{guild.Id}]");
+            } else {
+                await LogWarning(BotSource, $"Whitelisted in channel: {channel.Name} [{channel.Id}] on unknown server!");
+            }
+            yield return textChannel;
         }
     }
 
+    private async Task VerifyTextChannels() => _channels = await GetValidChannels(_whitelistedChannels).ToArrayAsync();
+
     private async Task SocketReceived(IWebSocketConnection socket, string message) {
-        var capability = JsonConvert.DeserializeObject<CapabilityMessage>(message);
+        if (JsonConvert.DeserializeObject<CapabilityMessage>(message) is not CapabilityMessage capability) return;
 
-        if (capability is null) return;
+        try {
             var pc = capability.Role switch {
                 RefinedStorageComputer.Role => new RefinedStorageComputer(socket),
                 string role => throw new ArgumentException($"Invalid role '{role}'!")
             };
             AddComputerSocket(socket, pc);
-        await Log(new LogMessage(LogSeverity.Info, WebSocketSource, $"[{socket.ConnectionInfo.Id}] Presented capability as {pc.GetType().Name}")).ConfigureAwait(false);
+            await LogInfo(WebSocketSource, $"[{socket.ConnectionInfo.Id}] Presented capability as {pc.GetType().Name}");
+        } catch (ArgumentException e) {
+            await LogError(WebSocketSource, e);
+        }
     }
 
-    private void AddComputerSocket(IWebSocketConnection socket, RefinedStorageComputer pc) {
-        _connections[socket.ConnectionInfo.Id] = pc;
-        if (pc is not null) _rsSystem = pc;
+    private void AddComputerSocket(IWebSocketConnection socket, ConnectedComputer pc) {
+        if (pc is RefinedStorageComputer rs) RsSystem = rs;
     }
 
     private void RemoveComputerSocket(IWebSocketConnection socket) {
-        if (!_connections.TryRemove(socket.ConnectionInfo.Id, out _))
-            throw new InvalidProgramException("Could not remove non-existing client!");
-        if (_rsSystem?.ConnectionInfo.Id == socket.ConnectionInfo.Id) _rsSystem = null;
+        if (RsSystem?.ConnectionInfo.Id == socket.ConnectionInfo.Id) RsSystem = null;
     }
 
     private async Task SocketClosed(IWebSocketConnection socket) {
         RemoveComputerSocket(socket);
-        await Log(new LogMessage(LogSeverity.Info, WebSocketSource, $"[{socket.ConnectionInfo.Id}] Client disconnected!")).ConfigureAwait(false);
+        await LogInfo(WebSocketSource, $"[{socket.ConnectionInfo.Id}] Client disconnected!");
     }
 
-    private async Task SocketOpened(IWebSocketConnection socket) => await Log(new LogMessage(LogSeverity.Info, WebSocketSource, $"[{socket.ConnectionInfo.Id}] Client connected from {socket.ConnectionInfo.ClientIpAddress}:{socket.ConnectionInfo.ClientPort}!")).ConfigureAwait(false);
+    private static async Task SocketOpened(IWebSocketConnection socket)
+        => await LogInfo(WebSocketSource, $"[{socket.ConnectionInfo.Id}] Client connected from {socket.ConnectionInfo.ClientIpAddress}:{socket.ConnectionInfo.ClientPort}!");
 
     private async Task DiscordMessageReceived(SocketMessage arg, int timeout = 10000) {
         if (arg is not SocketUserMessage message) return;
         if (message.Author.IsBot) return;
         if (!IsChannelWhitelisted(arg.Channel)) return;
 
-        var cts = new CancellationTokenSource(timeout
-#if DEBUG
-            * 1000
-#endif
-            );
+        var cts = new CancellationTokenSource(timeout);
 
         if (IsCommand(message, out var argPos)) {
             var parameters = message.Content[argPos..].Split(WhiteSpace, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
@@ -110,8 +145,8 @@ public class Program {
             return;
         }
 
-        await Log(new LogMessage(LogSeverity.Info, "Discord", $"[{arg.Author.Username}] {arg.Content}")).ConfigureAwait(false);
-        await SendToAll(JsonConvert.SerializeObject(new TextMessage(arg)));
+        await LogInfo("Discord", $"[{arg.Author.Username}] {arg.Content}");
+        // TODO: Relay Message to Chat Receiver   
     }
 
     private Task HandleCommand(SocketUserMessage message, string[] parameters, CancellationToken ct)
@@ -123,9 +158,9 @@ public class Program {
             : message.ReplyAsync($"You really think an empty command works?");
 
     private Task HandleRefinedStorageCommand(SocketUserMessage message, string[] parameters, CancellationToken ct)
-        => _rsSystem is null
-            ? message.ReplyAsync("The Refined Storage system is currently unavailable!")
-            : _rsSystem.HandleCommand(message, parameters, ct);
+        => RsSystem is RefinedStorageComputer rs
+            ? rs.HandleCommand(message, parameters, ct)
+            : message.ReplyAsync("The Refined Storage system is currently unavailable!");
 
     private bool IsCommand(SocketUserMessage message, out int argPos) {
         argPos = 0;
@@ -134,20 +169,44 @@ public class Program {
     private bool IsChannelWhitelisted(ISocketMessageChannel channel)
         => _whitelistedChannels.Contains(channel.Id);
 
-    private async Task SendToAll(string message) {
-        async Task SendToClient(KeyValuePair<Guid, ConnectedComputer> cp) {
-            try {
-                await cp.Value.Send(message);
-            } catch (Exception e) {
-                await Log(new LogMessage(LogSeverity.Warning, WebSocketSource, $"[{cp.Key}] Sending message failed!", e)).ConfigureAwait(false);
-            }
-        }
-        await Task.WhenAll(_connections.Select(SendToClient).ToArray());
-    }
+    public static ConfiguredTaskAwaitable LogInfo(string source, string message) => LogAsync(new(LogSeverity.Info, source, message)).ConfigureAwait(false);
+    public static ConfiguredTaskAwaitable LogWarning(string source, string message) => LogAsync(new(LogSeverity.Warning, source, message)).ConfigureAwait(false);
+    public static ConfiguredTaskAwaitable LogError(string source, Exception exception) => LogAsync(new(LogSeverity.Error, source, exception?.Message, exception)).ConfigureAwait(false);
 
-    private async Task Log(LogMessage msg) {
-        lock (_logLock)
-            Console.WriteLine(msg.ToString());
+    private static async Task LogAsync(LogMessage msg) {
+        Log(msg);
         await Task.CompletedTask;
     }
+
+    private static void Log(LogMessage msg) {
+        lock (LogLock)
+            Console.WriteLine(msg.ToString());
+    }
+
+    protected virtual void Dispose(bool disposing) {
+        if (!disposedValue) {
+            if (disposing) {
+                // TODO: dispose managed state (managed objects)
+                _wssv.Dispose();
+                _client.Dispose();
+            }
+
+            // TODO: free unmanaged resources (unmanaged objects) and override finalizer
+            // TODO: set large fields to null
+            disposedValue = true;
+        }
+    }
+
+    // // TODO: override finalizer only if 'Dispose(bool disposing)' has code to free unmanaged resources
+    // ~Program()
+    // {
+    //     // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
+    //     Dispose(disposing: false);
+    // }
+
+    public void Dispose() {
+        // Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
+        Dispose(disposing: true);
+        GC.SuppressFinalize(this);
+    }
 }

build.py

@@ -0,0 +1,34 @@
+#!python
+import subprocess
+import argparse
+from itertools import chain
+
+dockercmd = 'docker'
+
+parser = argparse.ArgumentParser(description='Create custom recumock images.')
+parser.add_argument('tags', metavar='TAG', nargs='+', help='Version tags to build.')
+
+args = parser.parse_args()
+
+platforms = ['linux/amd64', 'linux/arm64', 'linux/arm/v7']
+
+def pull(image):
+    subprocess.run([dockercmd, 'pull', baseimage], check=True)
+
+def build(image, directory, platforms, build_args = None):
+    if build_args is None:
+        build_args = []
+    build_args = list(chain.from_iterable(['--build-arg', f'{arg}={val}'] for (arg, val) in build_args))
+    platformlist = ','.join(platforms)
+    subprocess.run([dockercmd, 'buildx', 'build', '-f', 'MinecraftDiscordBot/Dockerfile', '--platform', platformlist, '-t', image] + build_args + ['--push', directory], check=True)
+    
+
+for tag in args.tags:
+    targetimage = f'chenio/mcdiscordbot:{tag}'
+    baseimage = f'mcr.microsoft.com/dotnet/runtime:6.0'
+    
+    #print(f'Pulling base image {baseimage}')
+    #pull(baseimage)
+    print(f'Building image {targetimage} from {baseimage}.')
+    build(targetimage, '.', platforms, [('TAG', tag)])
+    

checkcompat.py

@@ -0,0 +1,28 @@
+#!python
+import subprocess
+import argparse
+
+parser = argparse.ArgumentParser(description='Check platform compatibility with Python.')
+parser.add_argument('tag', metavar='TAG', help='Version tag to build.')
+
+args = parser.parse_args()
+tag = args.tag
+sourcetag = tag
+baseimage = f'mcr.microsoft.com/dotnet/runtime:6.0'
+targetimage = f'chenio/mcdiscordbot:{tag}'
+
+platforms = ['linux/amd64', 'linux/arm64', 'linux/riscv64', 'linux/ppc64le', 'linux/s390x', 'linux/386', 'linux/mips64le', 'linux/mips64', 'linux/arm/v7', 'linux/arm/v6']
+
+compatible_archs = []
+
+print(f'Pulling base image {baseimage}')
+subprocess.run(['docker', 'pull', baseimage], check=True)
+for platform in platforms:
+    print(f'Try building image {targetimage} for architecture {platform}.')
+    proc = subprocess.run(['docker', 'buildx', 'build', '-f', 'MinecraftDiscordBot/Dockerfile', '--platform', platform, '-t', targetimage, '.'])
+    if proc.returncode == 0:
+        compatible_archs.append(platform)
+
+print(f'Successful platforms for {baseimage}:')
+for platform in compatible_archs:
+    print(f'\t- {platform}')