osu/osu.Game/Online/Spectator/OnlineSpectatorClient.cs

117 lines
4.0 KiB
C#

// 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.Diagnostics;
using System.Threading.Tasks;
using Microsoft.AspNetCore.SignalR.Client;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Game.Online.API;
using osu.Game.Online.Multiplayer;
namespace osu.Game.Online.Spectator
{
public class OnlineSpectatorClient : SpectatorClient
{
private readonly string endpoint;
private IHubClientConnector? connector;
public override IBindable<bool> IsConnected { get; } = new BindableBool();
private HubConnection? connection => connector?.CurrentConnection;
public OnlineSpectatorClient(EndpointConfiguration endpoints)
{
endpoint = endpoints.SpectatorEndpointUrl;
}
[BackgroundDependencyLoader]
private void load(IAPIProvider api)
{
connector = api.GetHubConnector(nameof(SpectatorClient), endpoint);
if (connector != null)
{
connector.ConfigureConnection = connection =>
{
// until strong typed client support is added, each method must be manually bound
// (see https://github.com/dotnet/aspnetcore/issues/15198)
connection.On<int, SpectatorState>(nameof(ISpectatorClient.UserBeganPlaying), ((ISpectatorClient)this).UserBeganPlaying);
connection.On<int, FrameDataBundle>(nameof(ISpectatorClient.UserSentFrames), ((ISpectatorClient)this).UserSentFrames);
connection.On<int, SpectatorState>(nameof(ISpectatorClient.UserFinishedPlaying), ((ISpectatorClient)this).UserFinishedPlaying);
};
IsConnected.BindTo(connector.IsConnected);
}
}
protected override async Task BeginPlayingInternal(SpectatorState state)
{
if (!IsConnected.Value)
return;
Debug.Assert(connection != null);
try
{
await connection.InvokeAsync(nameof(ISpectatorServer.BeginPlaySession), state);
}
catch (Exception exception)
{
if (exception.GetHubExceptionMessage() == HubClientConnector.SERVER_SHUTDOWN_MESSAGE)
{
Debug.Assert(connector != null);
await connector.Reconnect();
await BeginPlayingInternal(state);
}
// Exceptions can occur if, for instance, the locally played beatmap doesn't have a server-side counterpart.
// For now, let's ignore these so they don't cause unobserved exceptions to appear to the user (and sentry).
}
}
protected override Task SendFramesInternal(FrameDataBundle bundle)
{
if (!IsConnected.Value)
return Task.CompletedTask;
Debug.Assert(connection != null);
return connection.SendAsync(nameof(ISpectatorServer.SendFrameData), bundle);
}
protected override Task EndPlayingInternal(SpectatorState state)
{
if (!IsConnected.Value)
return Task.CompletedTask;
Debug.Assert(connection != null);
return connection.InvokeAsync(nameof(ISpectatorServer.EndPlaySession), state);
}
protected override Task WatchUserInternal(int userId)
{
if (!IsConnected.Value)
return Task.CompletedTask;
Debug.Assert(connection != null);
return connection.InvokeAsync(nameof(ISpectatorServer.StartWatchingUser), userId);
}
protected override Task StopWatchingUserInternal(int userId)
{
if (!IsConnected.Value)
return Task.CompletedTask;
Debug.Assert(connection != null);
return connection.InvokeAsync(nameof(ISpectatorServer.EndWatchingUser), userId);
}
}
}