osu/osu.Game/Tests/PollingChatClient.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using osu.Game.Online;
using osu.Game.Online.API;
using osu.Game.Online.API.Requests;
using osu.Game.Online.Chat;
namespace osu.Game.Tests
{
public class PollingChatClient : PersistentEndpointClient
{
public event Action<Channel>? ChannelJoined;
public event Action<List<Message>>? NewMessages;
public event Action? PresenceReceived;
private readonly IAPIProvider api;
private long lastMessageId;
public PollingChatClient(IAPIProvider api)
{
this.api = api;
}
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public override Task ConnectAsync(CancellationToken cancellationToken)
{
Task.Run(async () =>
{
while (!cancellationToken.IsCancellationRequested)
{
await api.PerformAsync(CreateInitialFetchRequest()).ConfigureAwait(true);
await Task.Delay(1000, cancellationToken).ConfigureAwait(true);
}
}, cancellationToken);
return Task.CompletedTask;
}
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protected APIRequest CreateInitialFetchRequest(long? lastMessageId = null)
{
var fetchReq = new GetUpdatesRequest(lastMessageId ?? this.lastMessageId);
fetchReq.Success += updates =>
{
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if (updates.Presence != null)
{
foreach (var channel in updates.Presence)
handleChannelJoined(channel);
//todo: handle left channels
handleMessages(updates.Messages);
}
PresenceReceived?.Invoke();
};
return fetchReq;
}
private void handleChannelJoined(Channel channel)
{
channel.Joined.Value = true;
ChannelJoined?.Invoke(channel);
}
private void handleMessages(List<Message>? messages)
{
if (messages == null)
return;
NewMessages?.Invoke(messages);
lastMessageId = Math.Max(lastMessageId, messages.LastOrDefault()?.Id ?? 0);
}
}
}