mirror of https://github.com/ppy/osu
194 lines
7.0 KiB
C#
194 lines
7.0 KiB
C#
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// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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using osu.Framework.Configuration;
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using osu.Framework.Extensions.IEnumerableExtensions;
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using osu.Framework.Logging;
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using osu.Framework.Threading;
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using osu.Game.Online.API;
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using osu.Game.Online.API.Requests;
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namespace osu.Game.Online.Chat
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{
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/// <summary>
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/// Manages everything chat related
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/// </summary>
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public sealed class ChatManager : IOnlineComponent
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{
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/// <summary>
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/// The channels the player joins on startup
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/// </summary>
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private readonly string[] defaultChannels =
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{
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@"#lazer", @"#osu", @"#lobby"
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};
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/// <summary>
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/// The currently opened chat
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/// </summary>
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public Bindable<ChatBase> CurrentChat { get; } = new Bindable<ChatBase>();
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/// <summary>
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/// The Channels the player has joined
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/// </summary>
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public ObservableCollection<ChannelChat> JoinedChannels { get; } = new ObservableCollection<ChannelChat>();
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/// <summary>
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/// The channels available for the player to join
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/// </summary>
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public ObservableCollection<ChannelChat> AvailableChannels { get; } = new ObservableCollection<ChannelChat>();
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private APIAccess api;
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private readonly Scheduler scheduler;
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private ScheduledDelegate fetchMessagesScheduleder;
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private GetChannelMessagesRequest fetchChannelMsgReq;
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private long? lastChannelMsgId;
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public ChatManager(Scheduler scheduler)
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{
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this.scheduler = scheduler ?? throw new ArgumentNullException(nameof(scheduler));
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CurrentChat.ValueChanged += currentChatChanged;
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}
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private void currentChatChanged(ChatBase chatBase)
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{
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if (chatBase is ChannelChat channel && !JoinedChannels.Contains(channel))
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JoinedChannels.Add(channel);
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}
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/// <summary>
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/// Posts a message to the currently opened chat.
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/// </summary>
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/// <param name="text">The message text that is going to be posted</param>
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/// <param name="isAction">Is true if the message is an action, e.g.: user is currently eating </param>
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public void PostMessage(string text, bool isAction = false)
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{
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if (CurrentChat.Value == null)
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return;
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if (!api.IsLoggedIn)
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{
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CurrentChat.Value.AddNewMessages(new ErrorMessage("Please sign in to participate in chat!"));
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return;
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}
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var message = new LocalEchoMessage
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{
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Sender = api.LocalUser.Value,
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Timestamp = DateTimeOffset.Now,
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TargetType = CurrentChat.Value.Target,
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TargetId = CurrentChat.Value.ChatID,
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IsAction = isAction,
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Content = text
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};
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CurrentChat.Value.AddLocalEcho(message);
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var req = new PostMessageRequest(message);
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req.Failure += e => CurrentChat.Value?.ReplaceMessage(message, null);
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req.Success += m => CurrentChat.Value?.ReplaceMessage(message, m);
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api.Queue(req);
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}
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public void PostCommand(string text)
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{
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if (CurrentChat.Value == null)
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return;
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var parameters = text.Split(new[] { ' ' }, 2);
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string command = parameters[0];
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string content = parameters.Length == 2 ? parameters[1] : string.Empty;
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switch (command)
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{
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case "me":
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if (string.IsNullOrWhiteSpace(content))
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{
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CurrentChat.Value.AddNewMessages(new ErrorMessage("Usage: /me [action]"));
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break;
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}
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PostMessage(content, true);
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break;
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case "help":
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CurrentChat.Value.AddNewMessages(new InfoMessage("Supported commands: /help, /me [action]"));
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break;
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default:
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CurrentChat.Value.AddNewMessages(new ErrorMessage($@"""/{command}"" is not supported! For a list of supported commands see /help"));
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break;
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}
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}
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private void fetchNewMessages()
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{
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if (fetchChannelMsgReq == null)
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fetchNewChannelMessages();
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}
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private void fetchNewChannelMessages()
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{
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fetchChannelMsgReq = new GetChannelMessagesRequest(JoinedChannels, lastChannelMsgId);
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fetchChannelMsgReq.Success += messages =>
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{
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handleChannelMessages(messages);
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lastChannelMsgId = messages.LastOrDefault()?.Id ?? lastChannelMsgId;
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fetchChannelMsgReq = null;
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};
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fetchChannelMsgReq.Failure += exception => Logger.Error(exception, "Fetching channel messages failed.");
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api.Queue(fetchChannelMsgReq);
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}
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private void handleChannelMessages(IEnumerable<Message> messages)
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{
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var channels = JoinedChannels.ToList();
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foreach (var group in messages.GroupBy(m => m.TargetId))
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channels.Find(c => c.Id == group.Key)?.AddNewMessages(group.ToArray());
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}
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private void initializeDefaultChannels()
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{
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var req = new ListChannelsRequest();
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req.Success += channels =>
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{
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channels.Where(channel => AvailableChannels.All(c => c.ChatID != channel.ChatID))
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.ForEach(channel => AvailableChannels.Add(channel));
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channels.Where(channel => defaultChannels.Contains(channel.Name))
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.Where(channel => JoinedChannels.All(c => c.ChatID != channel.ChatID))
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.ForEach(channel => JoinedChannels.Add(channel));
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fetchNewMessages();
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};
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req.Failure += error => Logger.Error(error, "Fetching channels failed");
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api.Queue(req);
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}
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public void APIStateChanged(APIAccess api, APIState state)
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{
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this.api = api ?? throw new ArgumentNullException(nameof(api));
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switch (state)
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{
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case APIState.Online:
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if (JoinedChannels.Count == 0)
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initializeDefaultChannels();
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fetchMessagesScheduleder = scheduler.AddDelayed(fetchNewMessages, 1000, true);
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break;
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default:
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fetchChannelMsgReq?.Cancel();
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fetchMessagesScheduleder?.Cancel();
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break;
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}
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}
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}
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}
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