349 lines
16 KiB
C#
349 lines
16 KiB
C#
using Discord.API;
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using Discord.Rest;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Threading;
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namespace Discord.WebSocket
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{
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public partial class DiscordShardedClient : BaseDiscordClient, IDiscordClient
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{
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private readonly DiscordSocketConfig _baseConfig;
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private readonly SemaphoreSlim _connectionGroupLock;
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private int[] _shardIds;
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private Dictionary<int, int> _shardIdsToIndex;
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private DiscordSocketClient[] _shards;
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private int _totalShards;
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private bool _automaticShards;
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/// <summary> Gets the estimated round-trip latency, in milliseconds, to the gateway server. </summary>
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public int Latency => GetLatency();
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public UserStatus Status => _shards[0].Status;
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public Game? Game => _shards[0].Game;
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internal new DiscordSocketApiClient ApiClient => base.ApiClient as DiscordSocketApiClient;
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public new SocketSelfUser CurrentUser { get { return base.CurrentUser as SocketSelfUser; } private set { base.CurrentUser = value; } }
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public IReadOnlyCollection<SocketGuild> Guilds => GetGuilds().ToReadOnlyCollection(() => GetGuildCount());
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public IReadOnlyCollection<ISocketPrivateChannel> PrivateChannels => GetPrivateChannels().ToReadOnlyCollection(() => GetPrivateChannelCount());
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public IReadOnlyCollection<DiscordSocketClient> Shards => _shards;
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public IReadOnlyCollection<RestVoiceRegion> VoiceRegions => _shards[0].VoiceRegions;
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/// <summary> Creates a new REST/WebSocket discord client. </summary>
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public DiscordShardedClient() : this(null, new DiscordSocketConfig()) { }
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/// <summary> Creates a new REST/WebSocket discord client. </summary>
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public DiscordShardedClient(DiscordSocketConfig config) : this(null, config, CreateApiClient(config)) { }
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/// <summary> Creates a new REST/WebSocket discord client. </summary>
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public DiscordShardedClient(int[] ids) : this(ids, new DiscordSocketConfig()) { }
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/// <summary> Creates a new REST/WebSocket discord client. </summary>
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public DiscordShardedClient(int[] ids, DiscordSocketConfig config) : this(ids, config, CreateApiClient(config)) { }
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private DiscordShardedClient(int[] ids, DiscordSocketConfig config, API.DiscordSocketApiClient client)
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: base(config, client)
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{
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if (config.ShardId != null)
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throw new ArgumentException($"{nameof(config.ShardId)} must not be set.");
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if (ids != null && config.TotalShards == null)
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throw new ArgumentException($"Custom ids are not supported when {nameof(config.TotalShards)} is not specified.");
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_shardIdsToIndex = new Dictionary<int, int>();
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config.DisplayInitialLog = false;
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_baseConfig = config;
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_connectionGroupLock = new SemaphoreSlim(1, 1);
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if (config.TotalShards == null)
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_automaticShards = true;
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else
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{
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_totalShards = config.TotalShards.Value;
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_shardIds = ids ?? Enumerable.Range(0, _totalShards).ToArray();
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_shards = new DiscordSocketClient[_shardIds.Length];
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for (int i = 0; i < _shardIds.Length; i++)
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{
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_shardIdsToIndex.Add(_shardIds[i], i);
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var newConfig = config.Clone();
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newConfig.ShardId = _shardIds[i];
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_shards[i] = new DiscordSocketClient(newConfig, _connectionGroupLock, i != 0 ? _shards[0] : null);
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RegisterEvents(_shards[i], i == 0);
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}
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}
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}
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private static API.DiscordSocketApiClient CreateApiClient(DiscordSocketConfig config)
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=> new API.DiscordSocketApiClient(config.RestClientProvider, config.WebSocketProvider, DiscordRestConfig.UserAgent);
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internal override async Task OnLoginAsync(TokenType tokenType, string token)
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{
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if (_automaticShards)
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{
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var response = await ApiClient.GetBotGatewayAsync().ConfigureAwait(false);
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_shardIds = Enumerable.Range(0, response.Shards).ToArray();
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_totalShards = _shardIds.Length;
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_shards = new DiscordSocketClient[_shardIds.Length];
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for (int i = 0; i < _shardIds.Length; i++)
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{
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_shardIdsToIndex.Add(_shardIds[i], i);
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var newConfig = _baseConfig.Clone();
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newConfig.ShardId = _shardIds[i];
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newConfig.TotalShards = _totalShards;
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_shards[i] = new DiscordSocketClient(newConfig, _connectionGroupLock, i != 0 ? _shards[0] : null);
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RegisterEvents(_shards[i], i == 0);
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}
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}
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//Assume threadsafe: already in a connection lock
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for (int i = 0; i < _shards.Length; i++)
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await _shards[i].LoginAsync(tokenType, token, false);
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}
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internal override async Task OnLogoutAsync()
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{
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//Assume threadsafe: already in a connection lock
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for (int i = 0; i < _shards.Length; i++)
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await _shards[i].LogoutAsync();
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CurrentUser = null;
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if (_automaticShards)
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{
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_shardIds = new int[0];
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_shardIdsToIndex.Clear();
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_totalShards = 0;
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_shards = null;
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}
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}
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/// <inheritdoc />
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public async Task StartAsync()
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{
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await Task.WhenAll(_shards.Select(x => x.StartAsync())).ConfigureAwait(false);
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}
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/// <inheritdoc />
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public async Task StopAsync()
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{
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await Task.WhenAll(_shards.Select(x => x.StopAsync())).ConfigureAwait(false);
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}
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public DiscordSocketClient GetShard(int id)
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{
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if (_shardIdsToIndex.TryGetValue(id, out id))
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return _shards[id];
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return null;
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}
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private int GetShardIdFor(ulong guildId)
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=> (int)((guildId >> 22) % (uint)_totalShards);
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public int GetShardIdFor(IGuild guild)
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=> GetShardIdFor(guild.Id);
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private DiscordSocketClient GetShardFor(ulong guildId)
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=> GetShard(GetShardIdFor(guildId));
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public DiscordSocketClient GetShardFor(IGuild guild)
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=> GetShardFor(guild.Id);
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/// <inheritdoc />
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public async Task<RestApplication> GetApplicationInfoAsync()
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=> await _shards[0].GetApplicationInfoAsync().ConfigureAwait(false);
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/// <inheritdoc />
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public SocketGuild GetGuild(ulong id) => GetShardFor(id).GetGuild(id);
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/// <inheritdoc />
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public Task<RestGuild> CreateGuildAsync(string name, IVoiceRegion region, Stream jpegIcon = null)
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=> ClientHelper.CreateGuildAsync(this, name, region, jpegIcon);
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/// <inheritdoc />
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public SocketChannel GetChannel(ulong id)
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{
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for (int i = 0; i < _shards.Length; i++)
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{
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var channel = _shards[i].GetChannel(id);
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if (channel != null)
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return channel;
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}
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return null;
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}
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private IEnumerable<ISocketPrivateChannel> GetPrivateChannels()
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{
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for (int i = 0; i < _shards.Length; i++)
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{
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foreach (var channel in _shards[i].PrivateChannels)
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yield return channel;
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}
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}
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private int GetPrivateChannelCount()
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{
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int result = 0;
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for (int i = 0; i < _shards.Length; i++)
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result += _shards[i].PrivateChannels.Count;
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return result;
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}
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/// <inheritdoc />
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public Task<IReadOnlyCollection<RestConnection>> GetConnectionsAsync()
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=> ClientHelper.GetConnectionsAsync(this);
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private IEnumerable<SocketGuild> GetGuilds()
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{
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for (int i = 0; i < _shards.Length; i++)
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{
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foreach (var guild in _shards[i].Guilds)
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yield return guild;
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}
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}
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private int GetGuildCount()
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{
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int result = 0;
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for (int i = 0; i < _shards.Length; i++)
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result += _shards[i].Guilds.Count;
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return result;
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}
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/// <inheritdoc />
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public Task<RestInvite> GetInviteAsync(string inviteId)
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=> ClientHelper.GetInviteAsync(this, inviteId);
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/// <inheritdoc />
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public SocketUser GetUser(ulong id)
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{
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for (int i = 0; i < _shards.Length; i++)
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{
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var user = _shards[i].GetUser(id);
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if (user != null)
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return user;
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}
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return null;
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}
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/// <inheritdoc />
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public SocketUser GetUser(string username, string discriminator)
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{
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for (int i = 0; i < _shards.Length; i++)
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{
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var user = _shards[i].GetUser(username, discriminator);
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if (user != null)
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return user;
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}
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return null;
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}
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/// <inheritdoc />
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public RestVoiceRegion GetVoiceRegion(string id)
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=> _shards[0].GetVoiceRegion(id);
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/// <summary> Downloads the users list for the provided guilds, if they don't have a complete list. </summary>
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public async Task DownloadUsersAsync(IEnumerable<SocketGuild> guilds)
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{
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for (int i = 0; i < _shards.Length; i++)
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{
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int id = _shardIds[i];
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var arr = guilds.Where(x => GetShardIdFor(x) == id).ToArray();
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if (arr.Length > 0)
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await _shards[i].DownloadUsersAsync(arr);
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}
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}
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private int GetLatency()
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{
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int total = 0;
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for (int i = 0; i < _shards.Length; i++)
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total += _shards[i].Latency;
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return (int)Math.Round(total / (double)_shards.Length);
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}
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public async Task SetStatusAsync(UserStatus status)
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{
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for (int i = 0; i < _shards.Length; i++)
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await _shards[i].SetStatusAsync(status).ConfigureAwait(false);
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}
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public async Task SetGameAsync(string name, string streamUrl = null, StreamType streamType = StreamType.NotStreaming)
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{
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for (int i = 0; i < _shards.Length; i++)
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await _shards[i].SetGameAsync(name, streamUrl, streamType).ConfigureAwait(false);
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}
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private void RegisterEvents(DiscordSocketClient client, bool isPrimary)
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{
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client.Log += (msg) => _logEvent.InvokeAsync(msg);
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client.LoggedOut += () =>
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{
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var state = LoginState;
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if (state == LoginState.LoggedIn || state == LoginState.LoggingIn)
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{
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//Should only happen if token is changed
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var _ = LogoutAsync(); //Signal the logout, fire and forget
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}
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return Task.Delay(0);
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};
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if (isPrimary)
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{
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client.Ready += () =>
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{
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CurrentUser = client.CurrentUser;
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return Task.Delay(0);
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};
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}
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client.ChannelCreated += (channel) => _channelCreatedEvent.InvokeAsync(channel);
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client.ChannelDestroyed += (channel) => _channelDestroyedEvent.InvokeAsync(channel);
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client.ChannelUpdated += (oldChannel, newChannel) => _channelUpdatedEvent.InvokeAsync(oldChannel, newChannel);
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client.MessageReceived += (msg) => _messageReceivedEvent.InvokeAsync(msg);
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client.MessageDeleted += (cache, channel) => _messageDeletedEvent.InvokeAsync(cache, channel);
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client.MessageUpdated += (oldMsg, newMsg, channel) => _messageUpdatedEvent.InvokeAsync(oldMsg, newMsg, channel);
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client.ReactionAdded += (cache, channel, reaction) => _reactionAddedEvent.InvokeAsync(cache, channel, reaction);
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client.ReactionRemoved += (cache, channel, reaction) => _reactionRemovedEvent.InvokeAsync(cache, channel, reaction);
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client.ReactionsCleared += (cache, channel) => _reactionsClearedEvent.InvokeAsync(cache, channel);
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client.RoleCreated += (role) => _roleCreatedEvent.InvokeAsync(role);
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client.RoleDeleted += (role) => _roleDeletedEvent.InvokeAsync(role);
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client.RoleUpdated += (oldRole, newRole) => _roleUpdatedEvent.InvokeAsync(oldRole, newRole);
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client.JoinedGuild += (guild) => _joinedGuildEvent.InvokeAsync(guild);
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client.LeftGuild += (guild) => _leftGuildEvent.InvokeAsync(guild);
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client.GuildAvailable += (guild) => _guildAvailableEvent.InvokeAsync(guild);
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client.GuildUnavailable += (guild) => _guildUnavailableEvent.InvokeAsync(guild);
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client.GuildMembersDownloaded += (guild) => _guildMembersDownloadedEvent.InvokeAsync(guild);
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client.GuildUpdated += (oldGuild, newGuild) => _guildUpdatedEvent.InvokeAsync(oldGuild, newGuild);
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client.UserJoined += (user) => _userJoinedEvent.InvokeAsync(user);
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client.UserLeft += (user) => _userLeftEvent.InvokeAsync(user);
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client.UserBanned += (user, guild) => _userBannedEvent.InvokeAsync(user, guild);
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client.UserUnbanned += (user, guild) => _userUnbannedEvent.InvokeAsync(user, guild);
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client.UserUpdated += (oldUser, newUser) => _userUpdatedEvent.InvokeAsync(oldUser, newUser);
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client.GuildMemberUpdated += (oldUser, newUser) => _guildMemberUpdatedEvent.InvokeAsync(oldUser, newUser);
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client.UserVoiceStateUpdated += (user, oldVoiceState, newVoiceState) => _userVoiceStateUpdatedEvent.InvokeAsync(user, oldVoiceState, newVoiceState);
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client.CurrentUserUpdated += (oldUser, newUser) => _selfUpdatedEvent.InvokeAsync(oldUser, newUser);
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client.UserIsTyping += (oldUser, newUser) => _userIsTypingEvent.InvokeAsync(oldUser, newUser);
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client.RecipientAdded += (user) => _recipientAddedEvent.InvokeAsync(user);
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client.RecipientRemoved += (user) => _recipientRemovedEvent.InvokeAsync(user);
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}
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//IDiscordClient
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async Task<IApplication> IDiscordClient.GetApplicationInfoAsync()
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=> await GetApplicationInfoAsync().ConfigureAwait(false);
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Task<IChannel> IDiscordClient.GetChannelAsync(ulong id, CacheMode mode)
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=> Task.FromResult<IChannel>(GetChannel(id));
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Task<IReadOnlyCollection<IPrivateChannel>> IDiscordClient.GetPrivateChannelsAsync(CacheMode mode)
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=> Task.FromResult<IReadOnlyCollection<IPrivateChannel>>(PrivateChannels);
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async Task<IReadOnlyCollection<IConnection>> IDiscordClient.GetConnectionsAsync()
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=> await GetConnectionsAsync().ConfigureAwait(false);
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async Task<IInvite> IDiscordClient.GetInviteAsync(string inviteId)
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=> await GetInviteAsync(inviteId).ConfigureAwait(false);
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Task<IGuild> IDiscordClient.GetGuildAsync(ulong id, CacheMode mode)
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=> Task.FromResult<IGuild>(GetGuild(id));
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Task<IReadOnlyCollection<IGuild>> IDiscordClient.GetGuildsAsync(CacheMode mode)
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=> Task.FromResult<IReadOnlyCollection<IGuild>>(Guilds);
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async Task<IGuild> IDiscordClient.CreateGuildAsync(string name, IVoiceRegion region, Stream jpegIcon)
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=> await CreateGuildAsync(name, region, jpegIcon).ConfigureAwait(false);
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Task<IUser> IDiscordClient.GetUserAsync(ulong id, CacheMode mode)
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=> Task.FromResult<IUser>(GetUser(id));
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Task<IUser> IDiscordClient.GetUserAsync(string username, string discriminator)
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=> Task.FromResult<IUser>(GetUser(username, discriminator));
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Task<IReadOnlyCollection<IVoiceRegion>> IDiscordClient.GetVoiceRegionsAsync()
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=> Task.FromResult<IReadOnlyCollection<IVoiceRegion>>(VoiceRegions);
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Task<IVoiceRegion> IDiscordClient.GetVoiceRegionAsync(string id)
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=> Task.FromResult<IVoiceRegion>(GetVoiceRegion(id));
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}
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}
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