00097d3c27
* Add DiscordShardedClient sample project & Client FAQ entry. * Revise language, fix typo, add xrefs * Adjust placement of message handler. * Resolve DI issue with initialized client; properly initialize command handling service.
53 lines
1.9 KiB
C#
53 lines
1.9 KiB
C#
using System;
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using System.Reflection;
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using System.Threading.Tasks;
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using Microsoft.Extensions.DependencyInjection;
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using Discord;
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using Discord.Commands;
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using Discord.WebSocket;
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namespace _03_sharded_client.Services
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{
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public class CommandHandlingService
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{
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private readonly CommandService _commands;
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private readonly DiscordShardedClient _discord;
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private readonly IServiceProvider _services;
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public CommandHandlingService(IServiceProvider services)
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{
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_commands = services.GetRequiredService<CommandService>();
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_discord = services.GetRequiredService<DiscordShardedClient>();
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_services = services;
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}
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public async Task InitializeAsync()
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{
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await _commands.AddModulesAsync(Assembly.GetEntryAssembly(), _services);
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_discord.MessageReceived += MessageReceivedAsync;
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}
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public async Task MessageReceivedAsync(SocketMessage rawMessage)
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{
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// Ignore system messages, or messages from other bots
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if (!(rawMessage is SocketUserMessage message))
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return;
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if (message.Source != MessageSource.User)
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return;
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// This value holds the offset where the prefix ends
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var argPos = 0;
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if (!message.HasMentionPrefix(_discord.CurrentUser, ref argPos))
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return;
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// A new kind of command context, ShardedCommandContext can be utilized with the commands framework
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var context = new ShardedCommandContext(_discord, message);
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var result = await _commands.ExecuteAsync(context, argPos, _services);
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if (result.Error.HasValue &&
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result.Error.Value != CommandError.UnknownCommand) // it's bad practice to send 'unknown command' errors
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await context.Channel.SendMessageAsync(result.ToString());
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}
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}
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}
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