89 lines
3.2 KiB
C#
89 lines
3.2 KiB
C#
using Discord;
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using Discord.WebSocket;
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using Newtonsoft.Json.Linq;
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using Noikoio.RegexBot.ConfigItem;
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using System;
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using System.Linq;
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using System.Threading.Tasks;
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namespace Noikoio.RegexBot.Module.ModCommands
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{
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/// <summary>
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/// This class manages reading configuration and creating instances based on it.
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/// It processes input and looks for messages that intend to invoke commands defined in configuration.
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/// </summary>
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/// <remarks>
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/// Discord.Net has its own recommended way of implementing commands, but it's not exactly
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/// done in a way that would easily allow for flexibility and modifications during runtime.
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/// Thus, reinventing the wheel right here.
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/// </remarks>
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class CommandListener : BotModule
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{
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public override string Name => "ModCommands";
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public CommandListener(DiscordSocketClient client) : base(client)
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{
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client.MessageReceived += Client_MessageReceived;
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}
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private async Task Client_MessageReceived(SocketMessage arg)
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{
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// Always ignore these
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if (arg.Author.IsBot || arg.Author.IsWebhook) return;
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if (arg.Channel is IGuildChannel) await CommandCheckInvoke(arg);
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}
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[ConfigSection("ModCommands")]
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public override async Task<object> ProcessConfiguration(JToken configSection)
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{
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// Constructor throws exception on config errors
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var conf = new ConfigItem(this, configSection);
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// Log results
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if (conf.Commands.Count > 0)
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await Log(conf.Commands.Count + " command definition(s) loaded.");
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return conf;
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}
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private new ConfigItem GetConfig(ulong guildId) => (ConfigItem)base.GetConfig(guildId);
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public new Task Log(string text) => base.Log(text);
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private async Task CommandCheckInvoke(SocketMessage arg)
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{
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SocketGuild g = ((SocketGuildUser)arg.Author).Guild;
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// Get guild config
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ServerConfig sc = RegexBot.Config.Servers.FirstOrDefault(s => s.Id == g.Id);
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if (sc == null) return;
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// Disregard if not a bot moderator
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if (!sc.Moderators.ExistsInList(arg)) return;
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// Disregard if the message contains a newline character
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if (arg.Content.Contains("\n")) return;
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// Check for and invoke command
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string cmdchk;
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int spc = arg.Content.IndexOf(' ');
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if (spc != -1) cmdchk = arg.Content.Substring(0, spc);
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else cmdchk = arg.Content;
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if (GetConfig(g.Id).Commands.TryGetValue(cmdchk, out var c))
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{
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try
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{
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await c.Invoke(g, arg);
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// TODO Custom invocation log messages? Not by the user, but by the command.
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await Log($"{g.Name}/#{arg.Channel.Name}: {arg.Author} invoked {arg.Content}");
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}
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catch (Exception ex)
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{
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await Log($"Encountered an unhandled exception while processing '{c.Label}'. Details follow:");
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await Log(ex.ToString());
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}
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}
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}
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}
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}
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