servicepoint-tanks/tanks-backend/TanksServer/Interactivity/ClientScreenServer.cs
2024-04-21 14:32:29 +02:00

64 lines
2.3 KiB
C#

using System.Diagnostics;
using System.Net.WebSockets;
using DisplayCommands;
using Microsoft.Extensions.Hosting;
using TanksServer.Graphics;
namespace TanksServer.Interactivity;
internal sealed class ClientScreenServer(
ILogger<ClientScreenServer> logger,
ILoggerFactory loggerFactory,
IOptions<HostConfiguration> hostConfig
) : IHostedLifecycleService, IFrameConsumer
{
private readonly ConcurrentDictionary<ClientScreenServerConnection, byte> _connections = new();
private readonly TimeSpan _minFrameTime = TimeSpan.FromMilliseconds(hostConfig.Value.ClientDisplayMinFrameTimeMs);
private bool _closing;
public Task StoppingAsync(CancellationToken cancellationToken)
{
logger.LogInformation("closing connections");
_closing = true;
return Task.WhenAll(_connections.Keys.Select(c => c.CloseAsync()));
}
public Task HandleClient(WebSocket socket, Guid? playerGuid)
{
if (_closing)
{
logger.LogWarning("ignoring request because connections are closing");
return Task.CompletedTask;
}
logger.LogDebug("HandleClient");
var connection = new ClientScreenServerConnection(
socket,
loggerFactory.CreateLogger<ClientScreenServerConnection>(),
this,
_minFrameTime,
playerGuid);
var added = _connections.TryAdd(connection, 0);
Debug.Assert(added);
return connection.Done;
}
public void Remove(ClientScreenServerConnection connection) => _connections.TryRemove(connection, out _);
public IEnumerable<ClientScreenServerConnection> GetConnections() => _connections.Keys;
public Task OnFrameDoneAsync(GamePixelGrid gamePixelGrid, PixelGrid observerPixels)
{
var tasks = _connections.Keys
.Select(c => c.SendAsync(observerPixels, gamePixelGrid));
return Task.WhenAll(tasks);
}
public Task StartAsync(CancellationToken cancellationToken) => Task.CompletedTask;
public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
public Task StartedAsync(CancellationToken cancellationToken) => Task.CompletedTask;
public Task StartingAsync(CancellationToken cancellationToken) => Task.CompletedTask;
public Task StoppedAsync(CancellationToken cancellationToken) => Task.CompletedTask;
}