113 lines
4.3 KiB
C#
113 lines
4.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using App.Metrics;
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using Autofac;
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using DSharpPlus;
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using DSharpPlus.Entities;
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using PluralKit.Core;
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namespace PluralKit.Bot
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{
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public class Context
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{
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private readonly ILifetimeScope _provider;
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private readonly DiscordRestClient _rest;
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private readonly DiscordShardedClient _client;
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private readonly DiscordClient _shard;
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private readonly DiscordMessage _message;
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private readonly Parameters _parameters;
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private readonly MessageContext _messageContext;
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private readonly IDatabase _db;
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private readonly ModelRepository _repo;
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private readonly PKSystem _senderSystem;
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private readonly IMetrics _metrics;
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private Command _currentCommand;
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public Context(ILifetimeScope provider, DiscordClient shard, DiscordMessage message, int commandParseOffset,
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PKSystem senderSystem, MessageContext messageContext)
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{
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_rest = provider.Resolve<DiscordRestClient>();
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_client = provider.Resolve<DiscordShardedClient>();
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_message = message;
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_shard = shard;
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_senderSystem = senderSystem;
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_messageContext = messageContext;
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_db = provider.Resolve<IDatabase>();
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_repo = provider.Resolve<ModelRepository>();
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_metrics = provider.Resolve<IMetrics>();
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_provider = provider;
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_parameters = new Parameters(message.Content.Substring(commandParseOffset));
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}
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public DiscordUser Author => _message.Author;
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public DiscordChannel Channel => _message.Channel;
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public DiscordMessage Message => _message;
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public DiscordGuild Guild => _message.Channel.Guild;
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public DiscordClient Shard => _shard;
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public DiscordShardedClient Client => _client;
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public MessageContext MessageContext => _messageContext;
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public DiscordRestClient Rest => _rest;
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public PKSystem System => _senderSystem;
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public Parameters Parameters => _parameters;
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internal IDatabase Database => _db;
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internal ModelRepository Repository => _repo;
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public Task<DiscordMessage> Reply(string text = null, DiscordEmbed embed = null, IEnumerable<IMention> mentions = null)
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{
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if (!this.BotHasAllPermissions(Permissions.SendMessages))
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// Will be "swallowed" during the error handler anyway, this message is never shown.
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throw new PKError("PluralKit does not have permission to send messages in this channel.");
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if (embed != null && !this.BotHasAllPermissions(Permissions.EmbedLinks))
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throw new PKError("PluralKit does not have permission to send embeds in this channel. Please ensure I have the **Embed Links** permission enabled.");
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return Channel.SendMessageFixedAsync(text, embed: embed, mentions: mentions);
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}
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public async Task Execute<T>(Command commandDef, Func<T, Task> handler)
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{
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_currentCommand = commandDef;
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try
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{
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await handler(_provider.Resolve<T>());
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_metrics.Measure.Meter.Mark(BotMetrics.CommandsRun);
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}
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catch (PKSyntaxError e)
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{
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await Reply($"{Emojis.Error} {e.Message}\n**Command usage:**\n> pk;{commandDef.Usage}");
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}
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catch (PKError e)
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{
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await Reply($"{Emojis.Error} {e.Message}");
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}
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catch (TimeoutException)
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{
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// Got a complaint the old error was a bit too patronizing. Hopefully this is better?
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await Reply($"{Emojis.Error} Operation timed out, sorry. Try again, perhaps?");
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}
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}
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public LookupContext LookupContextFor(PKSystem target) =>
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System?.Id == target.Id ? LookupContext.ByOwner : LookupContext.ByNonOwner;
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public LookupContext LookupContextFor(SystemId systemId) =>
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System?.Id == systemId ? LookupContext.ByOwner : LookupContext.ByNonOwner;
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public LookupContext LookupContextFor(PKMember target) =>
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System?.Id == target.System ? LookupContext.ByOwner : LookupContext.ByNonOwner;
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public IComponentContext Services => _provider;
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}
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} |