114 lines
4.2 KiB
C#
114 lines
4.2 KiB
C#
using Microsoft.Extensions.DependencyInjection;
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using Serilog;
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using TwitchLib.Client.Models;
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namespace TwitchChatTTS.Chat.Commands
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{
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public class ChatCommandManager
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{
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private IDictionary<string, ChatCommand> _commands;
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private TwitchBotAuth _token;
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private IServiceProvider _serviceProvider;
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private ILogger _logger;
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private string CommandStartSign { get; } = "!";
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public ChatCommandManager(TwitchBotAuth token, IServiceProvider serviceProvider, ILogger logger)
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{
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_token = token;
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_serviceProvider = serviceProvider;
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_logger = logger;
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_commands = new Dictionary<string, ChatCommand>();
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GenerateCommands();
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}
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private void Add(ChatCommand command)
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{
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_commands.Add(command.Name.ToLower(), command);
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}
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private void GenerateCommands()
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{
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var basetype = typeof(ChatCommand);
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var assembly = GetType().Assembly;
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var types = assembly.GetTypes().Where(t => t.IsClass && !t.IsAbstract && basetype.IsAssignableFrom(t) && t.AssemblyQualifiedName?.Contains(".Chat.") == true);
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foreach (var type in types)
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{
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var key = "command-" + type.Name.Replace("Commands", "Comm#ands")
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.Replace("Command", "")
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.Replace("Comm#ands", "Commands")
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.ToLower();
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var command = _serviceProvider.GetKeyedService<ChatCommand>(key);
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if (command == null)
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{
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_logger.Error("Failed to add command: " + type.AssemblyQualifiedName);
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continue;
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}
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_logger.Debug($"Added command {type.AssemblyQualifiedName}.");
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Add(command);
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}
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}
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public async Task<ChatCommandResult> Execute(string arg, ChatMessage message)
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{
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if (_token.BroadcasterId == null)
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return ChatCommandResult.Unknown;
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if (string.IsNullOrWhiteSpace(arg))
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return ChatCommandResult.Unknown;
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arg = arg.Trim();
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if (!arg.StartsWith(CommandStartSign))
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return ChatCommandResult.Unknown;
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string[] parts = arg.Split(" ");
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string com = parts.First().Substring(CommandStartSign.Length).ToLower();
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string[] args = parts.Skip(1).ToArray();
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long broadcasterId = long.Parse(_token.BroadcasterId);
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if (!_commands.TryGetValue(com, out ChatCommand? command) || command == null)
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{
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_logger.Debug($"Failed to find command named '{com}'.");
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return ChatCommandResult.Missing;
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}
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if (!await command.CheckPermissions(message, broadcasterId) && message.UserId != "126224566" && !message.IsStaff)
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{
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_logger.Warning($"Chatter is missing permission to execute command named '{com}'.");
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return ChatCommandResult.Permission;
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}
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if (command.Parameters.Count(p => !p.Optional) > args.Length)
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{
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_logger.Warning($"Command syntax issue when executing command named '{com}' with the following args: {string.Join(" ", args)}");
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return ChatCommandResult.Syntax;
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}
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for (int i = 0; i < Math.Min(args.Length, command.Parameters.Count); i++)
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{
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if (!command.Parameters[i].Validate(args[i]))
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{
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_logger.Warning($"Commmand '{com}' failed because of the #{i + 1} argument. Invalid value: {args[i]}");
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return ChatCommandResult.Syntax;
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}
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}
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try
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{
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await command.Execute(args, message, broadcasterId);
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}
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catch (Exception e)
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{
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_logger.Error(e, $"Command '{arg}' failed.");
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return ChatCommandResult.Fail;
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}
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_logger.Information($"Executed the {com} command with the following args: " + string.Join(" ", args));
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return ChatCommandResult.Success;
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}
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}
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} |