500 lines
18 KiB
C#
500 lines
18 KiB
C#
using Discord;
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using Discord.Commands;
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using Discord.WebSocket;
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using NadekoBot.Core.Services;
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using NadekoBot.Core.Services.Impl;
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using NLog;
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using System;
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using System.Linq;
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using System.Reflection;
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using System.Threading.Tasks;
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using System.Collections.Immutable;
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using System.Diagnostics;
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using NadekoBot.Core.Services.Database.Models;
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using System.Threading;
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using System.IO;
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using NadekoBot.Extensions;
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using System.Collections.Generic;
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using NadekoBot.Common;
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using NadekoBot.Common.ShardCom;
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using NadekoBot.Core.Services.Database;
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using StackExchange.Redis;
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using Newtonsoft.Json;
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namespace NadekoBot
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{
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public class NadekoBot
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{
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private Logger _log;
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public BotCredentials Credentials { get; }
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public DiscordSocketClient Client { get; }
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public CommandService CommandService { get; }
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private readonly DbService _db;
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public ImmutableArray<GuildConfig> AllGuildConfigs { get; private set; }
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/* I don't know how to make this not be static
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* and keep the convenience of .WithOkColor
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* and .WithErrorColor extensions methods.
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* I don't want to pass botconfig every time I
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* want to send a confirm or error message, so
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* I'll keep this for now */
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public static Color OkColor { get; private set; }
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public static Color ErrorColor { get; private set; }
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public TaskCompletionSource<bool> Ready { get; private set; } = new TaskCompletionSource<bool>();
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public INServiceProvider Services { get; private set; }
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private readonly BotConfig _botConfig;
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public IDataCache Cache { get; private set; }
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public int GuildCount =>
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Cache.Redis.GetDatabase()
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.ListRange(Credentials.RedisKey() + "_shardstats")
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.Select(x => JsonConvert.DeserializeObject<ShardComMessage>(x))
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.Sum(x => x.Guilds);
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public NadekoBot(int shardId, int parentProcessId)
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{
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if (shardId < 0)
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throw new ArgumentOutOfRangeException(nameof(shardId));
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LogSetup.SetupLogger();
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_log = LogManager.GetCurrentClassLogger();
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TerribleElevatedPermissionCheck();
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Cache = new RedisCache();
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Credentials = new BotCredentials();
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_db = new DbService(Credentials);
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Client = new DiscordSocketClient(new DiscordSocketConfig
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{
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MessageCacheSize = 10,
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LogLevel = LogSeverity.Warning,
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ConnectionTimeout = int.MaxValue,
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TotalShards = Credentials.TotalShards,
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ShardId = shardId,
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AlwaysDownloadUsers = false,
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});
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CommandService = new CommandService(new CommandServiceConfig()
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{
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CaseSensitiveCommands = false,
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DefaultRunMode = RunMode.Sync,
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});
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using (var uow = _db.UnitOfWork)
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{
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_botConfig = uow.BotConfig.GetOrCreate();
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OkColor = new Color(Convert.ToUInt32(_botConfig.OkColor, 16));
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ErrorColor = new Color(Convert.ToUInt32(_botConfig.ErrorColor, 16));
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}
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SetupShard(parentProcessId);
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#if GLOBAL_NADEKO
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Client.Log += Client_Log;
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#endif
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}
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private void StartSendingData()
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{
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Task.Run(async () =>
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{
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while (true)
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{
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var data = new ShardComMessage()
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{
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ConnectionState = Client.ConnectionState,
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Guilds = Client.ConnectionState == ConnectionState.Connected ? Client.Guilds.Count : 0,
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ShardId = Client.ShardId,
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Time = DateTime.UtcNow,
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};
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var sub = Cache.Redis.GetSubscriber();
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var msg = JsonConvert.SerializeObject(data);
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await sub.PublishAsync(Credentials.RedisKey() + "_shardcoord_send", msg).ConfigureAwait(false);
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await Task.Delay(7500);
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}
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});
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}
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private void AddServices()
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{
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var startingGuildIdList = Client.Guilds.Select(x => (long)x.Id).ToList();
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//this unit of work will be used for initialization of all modules too, to prevent multiple queries from running
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using (var uow = _db.UnitOfWork)
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{
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AllGuildConfigs = uow.GuildConfigs.GetAllGuildConfigs(startingGuildIdList).ToImmutableArray();
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IBotConfigProvider botConfigProvider = new BotConfigProvider(_db, _botConfig);
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//initialize Services
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Services = new NServiceProvider()
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.AddManual<IBotCredentials>(Credentials)
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.AddManual(_db)
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.AddManual(Client)
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.AddManual(CommandService)
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.AddManual(botConfigProvider)
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.AddManual<NadekoBot>(this)
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.AddManual<IUnitOfWork>(uow)
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.AddManual<IDataCache>(Cache);
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Services.LoadFrom(Assembly.GetAssembly(typeof(CommandHandler)));
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var commandHandler = Services.GetService<CommandHandler>();
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commandHandler.AddServices(Services);
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LoadTypeReaders(typeof(NadekoBot).Assembly);
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}
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Services.Unload(typeof(IUnitOfWork)); // unload it after the startup
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}
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private IEnumerable<object> LoadTypeReaders(Assembly assembly)
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{
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Type[] allTypes;
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try
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{
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allTypes = assembly.GetTypes();
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}
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catch (ReflectionTypeLoadException ex)
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{
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Console.WriteLine(ex.LoaderExceptions[0]);
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return Enumerable.Empty<object>();
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}
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var filteredTypes = allTypes
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.Where(x => x.IsSubclassOf(typeof(TypeReader))
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&& x.BaseType.GetGenericArguments().Length > 0
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&& !x.IsAbstract);
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var toReturn = new List<object>();
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foreach (var ft in filteredTypes)
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{
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var x = (TypeReader)Activator.CreateInstance(ft, Client, CommandService);
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var baseType = ft.BaseType;
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var typeArgs = baseType.GetGenericArguments();
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try
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{
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CommandService.AddTypeReader(typeArgs[0], x);
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}
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catch (Exception ex)
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{
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_log.Error(ex);
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throw;
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}
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toReturn.Add(x);
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//_log.Info("Loaded {0} typereader.", x.GetType().Name);
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}
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return toReturn;
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}
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private async Task LoginAsync(string token)
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{
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var clientReady = new TaskCompletionSource<bool>();
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Task SetClientReady()
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{
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var _ = Task.Run(async () =>
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{
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clientReady.TrySetResult(true);
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try
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{
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foreach (var chan in (await Client.GetDMChannelsAsync()))
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{
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await chan.CloseAsync().ConfigureAwait(false);
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}
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}
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catch
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{
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// ignored
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}
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finally
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{
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}
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});
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return Task.CompletedTask;
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}
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//connect
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_log.Info("Shard {0} logging in ...", Client.ShardId);
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await Client.LoginAsync(TokenType.Bot, token).ConfigureAwait(false);
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await Client.StartAsync().ConfigureAwait(false);
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Client.Ready += SetClientReady;
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await clientReady.Task.ConfigureAwait(false);
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Client.Ready -= SetClientReady;
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Client.JoinedGuild += Client_JoinedGuild;
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Client.LeftGuild += Client_LeftGuild;
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_log.Info("Shard {0} logged in.", Client.ShardId);
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}
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private Task Client_LeftGuild(SocketGuild arg)
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{
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_log.Info("Left server: {0} [{1}]", arg?.Name, arg?.Id);
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return Task.CompletedTask;
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}
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private Task Client_JoinedGuild(SocketGuild arg)
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{
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_log.Info("Joined server: {0} [{1}]", arg?.Name, arg?.Id);
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return Task.CompletedTask;
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}
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public async Task RunAsync(params string[] args)
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{
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var sw = Stopwatch.StartNew();
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await LoginAsync(Credentials.Token).ConfigureAwait(false);
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_log.Info($"Shard {Client.ShardId} loading services...");
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try
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{
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AddServices();
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}
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catch (Exception ex)
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{
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_log.Error(ex);
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throw;
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}
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sw.Stop();
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_log.Info($"Shard {Client.ShardId} connected in {sw.Elapsed.TotalSeconds:F2}s");
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var stats = Services.GetService<IStatsService>();
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stats.Initialize();
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var commandHandler = Services.GetService<CommandHandler>();
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var CommandService = Services.GetService<CommandService>();
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// start handling messages received in commandhandler
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await commandHandler.StartHandling().ConfigureAwait(false);
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var _ = await CommandService.AddModulesAsync(this.GetType().GetTypeInfo().Assembly);
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bool isPublicNadeko = false;
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#if GLOBAL_NADEKO
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isPublicNadeko = true;
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#endif
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//unload modules which are not available on the public bot
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if (isPublicNadeko)
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CommandService
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.Modules
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.ToArray()
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.Where(x => x.Preconditions.Any(y => y.GetType() == typeof(NoPublicBot)))
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.ForEach(x => CommandService.RemoveModuleAsync(x));
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Ready.TrySetResult(true);
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HandleStatusChanges();
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StartSendingData();
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_log.Info($"Shard {Client.ShardId} ready.");
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}
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private Task Client_Log(LogMessage arg)
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{
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_log.Warn(arg.Source + " | " + arg.Message);
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if (arg.Exception != null)
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_log.Warn(arg.Exception);
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return Task.CompletedTask;
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}
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public async Task RunAndBlockAsync(params string[] args)
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{
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await RunAsync(args).ConfigureAwait(false);
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await Task.Delay(-1).ConfigureAwait(false);
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}
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private void TerribleElevatedPermissionCheck()
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{
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try
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{
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File.WriteAllText("test", "test");
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File.Delete("test");
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}
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catch
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{
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_log.Error("You must run the application as an ADMINISTRATOR.");
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Console.ReadKey();
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Environment.Exit(2);
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}
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}
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private void SetupShard(int parentProcessId)
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{
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new Thread(new ThreadStart(() =>
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{
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try
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{
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var p = Process.GetProcessById(parentProcessId);
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if (p == null)
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return;
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p.WaitForExit();
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}
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finally
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{
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Environment.Exit(10);
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}
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})).Start();
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}
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private void HandleStatusChanges()
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{
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var sub = Services.GetService<IDataCache>().Redis.GetSubscriber();
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sub.Subscribe(Client.CurrentUser.Id + "_status.game_set", async (ch, game) =>
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{
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try
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{
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var obj = new { Name = default(string) };
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obj = JsonConvert.DeserializeAnonymousType(game, obj);
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await Client.SetGameAsync(obj.Name).ConfigureAwait(false);
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}
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catch (Exception ex)
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{
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_log.Warn(ex);
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}
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}, CommandFlags.FireAndForget);
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sub.Subscribe(Client.CurrentUser.Id + "_status.stream_set", async (ch, streamData) =>
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{
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try
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{
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var obj = new { Name = "", Url = "" };
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obj = JsonConvert.DeserializeAnonymousType(streamData, obj);
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await Client.SetGameAsync(obj.Name, obj.Url, StreamType.Twitch).ConfigureAwait(false);
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}
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catch (Exception ex)
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{
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_log.Warn(ex);
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}
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}, CommandFlags.FireAndForget);
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}
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public Task SetGameAsync(string game)
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{
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var obj = new { Name = game };
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var sub = Services.GetService<IDataCache>().Redis.GetSubscriber();
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return sub.PublishAsync(Client.CurrentUser.Id + "_status.game_set", JsonConvert.SerializeObject(obj));
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}
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public Task SetStreamAsync(string name, string url)
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{
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var obj = new { Name = name, Url = url };
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var sub = Services.GetService<IDataCache>().Redis.GetSubscriber();
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return sub.PublishAsync(Client.CurrentUser.Id + "_status.game_set", JsonConvert.SerializeObject(obj));
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}
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//private readonly Dictionary<string, (IEnumerable<ModuleInfo> Modules, IEnumerable<Type> Types)> _loadedPackages = new Dictionary<string, (IEnumerable<ModuleInfo>, IEnumerable<Type>)>();
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//private readonly SemaphoreSlim _packageLocker = new SemaphoreSlim(1, 1);
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//public IEnumerable<string> LoadedPackages => _loadedPackages.Keys;
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///// <summary>
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///// Unloads a package
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///// </summary>
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///// <param name="name">Package name. Case sensitive.</param>
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///// <returns>Whether the unload is successful.</returns>
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//public async Task<bool> UnloadPackage(string name)
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//{
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// await _packageLocker.WaitAsync().ConfigureAwait(false);
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// try
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// {
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// if (!_loadedPackages.Remove(name, out var data))
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// return false;
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// var modules = data.Modules;
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// var types = data.Types;
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// var i = 0;
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// foreach (var m in modules)
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// {
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// await CommandService.RemoveModuleAsync(m).ConfigureAwait(false);
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// i++;
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// }
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// _log.Info("Unloaded {0} modules.", i);
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// if (types != null && types.Any())
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// {
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// i = 0;
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// foreach (var t in types)
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// {
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// var obj = Services.Unload(t);
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// if (obj is IUnloadableService s)
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// await s.Unload().ConfigureAwait(false);
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// i++;
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// }
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// _log.Info("Unloaded {0} types.", i);
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// }
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// using (var uow = _db.UnitOfWork)
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// {
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// uow.BotConfig.GetOrCreate().LoadedPackages.Remove(new LoadedPackage
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// {
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// Name = name,
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// });
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// }
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// return true;
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// }
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// finally
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// {
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// _packageLocker.Release();
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// }
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//}
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///// <summary>
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///// Loads a package
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///// </summary>
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///// <param name="name">Name of the package to load. Case sensitive.</param>
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///// <returns>Whether the load is successful.</returns>
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//public async Task<bool> LoadPackage(string name)
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//{
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// await _packageLocker.WaitAsync().ConfigureAwait(false);
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// try
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// {
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// if (_loadedPackages.ContainsKey(name))
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// return false;
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// var startingGuildIdList = Client.Guilds.Select(x => (long)x.Id).ToList();
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// using (var uow = _db.UnitOfWork)
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// {
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// AllGuildConfigs = uow.GuildConfigs.GetAllGuildConfigs(startingGuildIdList).ToImmutableArray();
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// }
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// var domain = new Context();
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// var package = domain.LoadFromAssemblyPath(Path.Combine(AppContext.BaseDirectory,
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// "modules",
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// $"NadekoBot.Modules.{name}",
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// $"NadekoBot.Modules.{name}.dll"));
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// //var package = Assembly.LoadFile(Path.Combine(AppContext.BaseDirectory,
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// // "modules",
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// // $"NadekoBot.Modules.{name}",
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// // $"NadekoBot.Modules.{name}.dll"));
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// var types = Services.LoadFrom(package);
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// var added = await CommandService.AddModulesAsync(package).ConfigureAwait(false);
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// var trs = LoadTypeReaders(package);
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// /* i don't have to unload typereaders
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// * (and there's no api for it)
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// * because they get overwritten anyway, and since
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// * the only time I'd unload typereaders, is when unloading a module
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// * which means they won't have a chance to be used
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// * */
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// _log.Info("Loaded {0} modules and {1} types.", added.Count(), types.Count());
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// _loadedPackages.Add(name, (added, types));
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// using (var uow = _db.UnitOfWork)
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// {
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// uow.BotConfig.GetOrCreate().LoadedPackages.Add(new LoadedPackage
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// {
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// Name = name,
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// });
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// }
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// return true;
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// }
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// finally
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// {
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// _packageLocker.Release();
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// }
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//}
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}
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}
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