Files
Discord.Net/src/Discord.Net.Modules/ModuleManager.cs
2015-12-02 10:01:24 -04:00

302 lines
12 KiB
C#

using Discord.Commands;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
namespace Discord.Modules
{
public class ModuleManager
{
public event EventHandler<ServerEventArgs> ServerEnabled;
public event EventHandler<ServerEventArgs> ServerDisabled;
public event EventHandler<ChannelEventArgs> ChannelEnabled;
public event EventHandler<ChannelEventArgs> ChannelDisabled;
public event EventHandler<ServerEventArgs> LeftServer;
public event EventHandler<ServerEventArgs> ServerUpdated;
public event EventHandler<ServerEventArgs> ServerUnavailable;
public event EventHandler<ServerEventArgs> ServerAvailable;
public event EventHandler<BanEventArgs> UserBanned;
public event EventHandler<BanEventArgs> UserUnbanned;
public event EventHandler<ChannelEventArgs> ChannelCreated;
public event EventHandler<ChannelEventArgs> ChannelDestroyed;
public event EventHandler<ChannelEventArgs> ChannelUpdated;
public event EventHandler<RoleEventArgs> RoleCreated;
public event EventHandler<RoleEventArgs> RoleUpdated;
public event EventHandler<RoleEventArgs> RoleDeleted;
public event EventHandler<UserEventArgs> UserJoined;
public event EventHandler<UserEventArgs> UserLeft;
public event EventHandler<UserEventArgs> UserUpdated;
public event EventHandler<UserEventArgs> UserPresenceUpdated;
public event EventHandler<UserEventArgs> UserVoiceStateUpdated;
public event EventHandler<UserChannelEventArgs> UserIsTypingUpdated;
public event EventHandler<UserIsSpeakingEventArgs> UserIsSpeakingUpdated;
public event EventHandler<MessageEventArgs> MessageReceived;
public event EventHandler<MessageEventArgs> MessageSent;
public event EventHandler<MessageEventArgs> MessageDeleted;
public event EventHandler<MessageEventArgs> MessageUpdated;
public event EventHandler<MessageEventArgs> MessageReadRemotely;
private readonly DiscordClient _client;
private readonly string _name, _id;
private readonly FilterType _filterType;
private readonly bool _useServerWhitelist, _useChannelWhitelist, _allowAll, _allowPrivate;
private readonly ConcurrentDictionary<long, Server> _enabledServers;
private readonly ConcurrentDictionary<long, Channel> _enabledChannels;
private readonly ConcurrentDictionary<long, int> _indirectServers;
public DiscordClient Client => _client;
public string Name => _name;
public string Id => _id;
public FilterType FilterType => _filterType;
public IEnumerable<Server> EnabledServers => _enabledServers.Select(x => x.Value);
public IEnumerable<Channel> EnabledChannels => _enabledChannels.Select(x => x.Value);
internal ModuleManager(DiscordClient client, string name, FilterType filterType)
{
_client = client;
_name = name;
_id = name.ToLowerInvariant();
_filterType = filterType;
_allowAll = filterType == FilterType.Unrestricted;
_useServerWhitelist = filterType.HasFlag(FilterType.ServerWhitelist);
_useChannelWhitelist = filterType.HasFlag(FilterType.ChannelWhitelist);
_allowPrivate = filterType.HasFlag(FilterType.AllowPrivate);
_enabledServers = new ConcurrentDictionary<long, Server>();
_enabledChannels = new ConcurrentDictionary<long, Channel>();
_indirectServers = new ConcurrentDictionary<long, int>();
if (_allowAll || _useServerWhitelist) //Server-only events
{
client.ChannelCreated += (s, e) => { if (ChannelCreated != null && HasServer(e.Server)) ChannelCreated(s, e); };
client.UserVoiceStateUpdated += (s, e) => { if (UserVoiceStateUpdated != null && HasServer(e.Server)) UserVoiceStateUpdated(s, e); };
client.UserIsSpeakingUpdated += (s, e) => { if (UserIsSpeakingUpdated != null && HasServer(e.Server)) UserIsSpeakingUpdated(s, e); };
}
client.ChannelDestroyed += (s, e) => { if (ChannelDestroyed != null && HasChannel(e.Channel)) ChannelDestroyed(s, e); };
client.ChannelUpdated += (s, e) => { if (ChannelUpdated != null && HasChannel(e.Channel)) ChannelUpdated(s, e); };
client.MessageReceived += (s, e) => { if (MessageReceived != null && HasChannel(e.Channel)) MessageReceived(s, e); };
client.MessageSent += (s, e) => { if (MessageSent != null && HasChannel(e.Channel)) MessageSent(s, e); };
client.MessageDeleted += (s, e) => { if (MessageDeleted != null && HasChannel(e.Channel)) MessageDeleted(s, e); };
client.MessageUpdated += (s, e) => { if (MessageUpdated != null && HasChannel(e.Channel)) MessageUpdated(s, e); };
client.MessageReadRemotely += (s, e) => { if (MessageReadRemotely != null && HasChannel(e.Channel)) MessageReadRemotely(s, e); };
client.RoleCreated += (s, e) => { if (RoleCreated != null && HasIndirectServer(e.Server)) RoleCreated(s, e); };
client.RoleUpdated += (s, e) => { if (RoleUpdated != null && HasIndirectServer(e.Server)) RoleUpdated(s, e); };
client.RoleDeleted += (s, e) => { if (RoleDeleted != null && HasIndirectServer(e.Server)) RoleDeleted(s, e); };
client.LeftServer += (s, e) => { if (LeftServer != null && HasIndirectServer(e.Server)) { DisableServer(e.Server); LeftServer(s, e); } };
client.ServerUpdated += (s, e) => { if (ServerUpdated != null && HasIndirectServer(e.Server)) ServerUpdated(s, e); };
client.ServerUnavailable += (s, e) => { if (ServerUnavailable != null && HasIndirectServer(e.Server)) ServerUnavailable(s, e); };
client.ServerAvailable += (s, e) => { if (ServerAvailable != null && HasIndirectServer(e.Server)) ServerAvailable(s, e); };
client.UserJoined += (s, e) => { if (UserJoined != null && HasIndirectServer(e.Server)) UserJoined(s, e); };
client.UserLeft += (s, e) => { if (UserLeft != null && HasIndirectServer(e.Server)) UserLeft(s, e); };
client.UserUpdated += (s, e) => { if (UserUpdated != null && HasIndirectServer(e.Server)) UserUpdated(s, e); };
client.UserIsTypingUpdated += (s, e) => { if (UserIsSpeakingUpdated != null && HasChannel(e.Channel)) UserIsTypingUpdated(s, e); };
//TODO: We aren't getting events from UserPresence if AllowPrivate is enabled, but the server we know that user through isn't on the whitelist
client.UserPresenceUpdated += (s, e) => { if (UserPresenceUpdated != null && HasIndirectServer(e.Server)) UserPresenceUpdated(s, e); };
client.UserBanned += (s, e) => { if (UserBanned != null && HasIndirectServer(e.Server)) UserBanned(s, e); };
client.UserUnbanned += (s, e) => { if (UserUnbanned != null && HasIndirectServer(e.Server)) UserUnbanned(s, e); };
}
public void CreateCommands(string prefix, Action<CommandGroupBuilder> config)
{
var commandService = _client.Commands(true);
commandService.CreateGroup(prefix, x =>
{
x.Category(_name);
x.AddCheck(new ModuleChecker(this));
config(x);
});
}
public bool EnableServer(Server server)
{
if (server == null) throw new ArgumentNullException(nameof(server));
if (!_useServerWhitelist) throw new InvalidOperationException("This module is not configured to use a server whitelist.");
lock (this)
return EnableServerInternal(server);
}
public void EnableServers(IEnumerable<Server> servers)
{
if (servers == null) throw new ArgumentNullException(nameof(servers));
if (servers.Contains(null)) throw new ArgumentException("Collection cannot contain null.", nameof(servers));
if (!_useServerWhitelist) throw new InvalidOperationException("This module is not configured to use a server whitelist.");
lock (this)
{
foreach (var server in servers)
EnableServerInternal(server);
}
}
private bool EnableServerInternal(Server server)
{
if (_enabledServers.TryAdd(server.Id, server))
{
if (ServerEnabled != null)
ServerEnabled(this, new ServerEventArgs(server));
return true;
}
return false;
}
public bool DisableServer(Server server)
{
if (server == null) throw new ArgumentNullException(nameof(server));
if (!_useServerWhitelist) throw new InvalidOperationException("This module is not configured to use a server whitelist.");
lock (this)
{
if (_enabledServers.TryRemove(server.Id, out server))
{
if (ServerDisabled != null)
ServerDisabled(this, new ServerEventArgs(server));
return true;
}
return false;
}
}
public void DisableAllServers()
{
if (!_useServerWhitelist) throw new InvalidOperationException("This module is not configured to use a server whitelist.");
lock (this)
{
if (ServerDisabled != null)
{
foreach (var server in _enabledServers)
ServerDisabled(this, new ServerEventArgs(server.Value));
}
_enabledServers.Clear();
}
}
public bool EnableChannel(Channel channel)
{
if (channel == null) throw new ArgumentNullException(nameof(channel));
if (!_useChannelWhitelist) throw new InvalidOperationException("This module is not configured to use a channel whitelist.");
lock (this)
return EnableChannelInternal(channel);
}
public void EnableChannels(IEnumerable<Channel> channels)
{
if (channels == null) throw new ArgumentNullException(nameof(channels));
if (channels.Contains(null)) throw new ArgumentException("Collection cannot contain null.", nameof(channels));
if (!_useChannelWhitelist) throw new InvalidOperationException("This module is not configured to use a channel whitelist.");
lock (this)
{
foreach (var channel in channels)
EnableChannelInternal(channel);
}
}
private bool EnableChannelInternal(Channel channel)
{
if (_enabledChannels.TryAdd(channel.Id, channel))
{
var server = channel.Server;
if (server != null)
{
int value = 0;
_indirectServers.TryGetValue(server.Id, out value);
value++;
_indirectServers[server.Id] = value;
}
if (ChannelEnabled != null)
ChannelEnabled(this, new ChannelEventArgs(channel));
return true;
}
return false;
}
public bool DisableChannel(Channel channel)
{
if (channel == null) throw new ArgumentNullException(nameof(channel));
if (!_useChannelWhitelist) throw new InvalidOperationException("This module is not configured to use a channel whitelist.");
lock (this)
{
Channel ignored;
if (_enabledChannels.TryRemove(channel.Id, out ignored))
{
var server = channel.Server;
if (server != null)
{
int value = 0;
_indirectServers.TryGetValue(server.Id, out value);
value--;
if (value <= 0)
_indirectServers.TryRemove(server.Id, out value);
else
_indirectServers[server.Id] = value;
}
if (ChannelDisabled != null)
ChannelDisabled(this, new ChannelEventArgs(channel));
return true;
}
return false;
}
}
public void DisableAllChannels()
{
if (!_useChannelWhitelist) throw new InvalidOperationException("This module is not configured to use a channel whitelist.");
lock (this)
{
if (ChannelDisabled != null)
{
foreach (var channel in _enabledChannels)
ChannelDisabled(this, new ChannelEventArgs(channel.Value));
}
_enabledChannels.Clear();
_indirectServers.Clear();
}
}
public void DisableAll()
{
if (_useServerWhitelist)
DisableAllServers();
if (_useChannelWhitelist)
DisableAllChannels();
}
internal bool HasServer(Server server) =>
_allowAll ||
_useServerWhitelist && _enabledServers.ContainsKey(server.Id);
internal bool HasIndirectServer(Server server) =>
_allowAll ||
(_useServerWhitelist && _enabledServers.ContainsKey(server.Id)) ||
(_useChannelWhitelist && _indirectServers.ContainsKey(server.Id));
internal bool HasChannel(Channel channel)
{
if (_allowAll) return true;
if (channel.IsPrivate) return _allowPrivate;
if (_useChannelWhitelist && _enabledChannels.ContainsKey(channel.Id)) return true;
if (_useServerWhitelist)
{
var server = channel.Server;
if (server == null) return false;
if (_enabledServers.ContainsKey(server.Id)) return true;
}
return false;
}
}
}