using System;
using System.Threading.Tasks;

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;

using Syntriax.Engine.Core;
using Syntriax.Engine.Network;

namespace Server;

public class PongEndpoints : Behaviour, IFirstFrameUpdate
{
    private INetworkCommunicatorServer? server = null!;

    public PongEndpoints()
    {
        Task.Run(() =>
        {
            WebApplicationBuilder builder = WebApplication.CreateBuilder();

            builder.Services.AddHealthChecks();

            WebApplication app = builder.Build();

            app.MapHealthChecks("/health");

            app.MapGet("/stats", GetStats);

            app.Run($"http://0.0.0.0:{Environment.GetEnvironmentVariable("PORT") ?? "8888"}");
        });
    }

    private IResult GetStats() => Results.Json(new { Count = server?.Connections.Count ?? 0 });

    public void FirstActiveFrame() => server = Universe.FindRequiredBehaviour<INetworkCommunicatorServer>();
    protected override void OnExitedUniverse(IUniverse universe) => server = null;
}