using Fantasy.Async;
using Fantasy.Event;
using Fantasy.Network.HTTP;
using Microsoft.AspNetCore.Builder;
using System;
using Fantasy;

namespace NBF
{
    public class GameHttpApplicationHandler : AsyncEventSystem<OnConfigureHttpApplication>
    {
        protected override async FTask Handler(OnConfigureHttpApplication self)
        {
            var app = self.Application;

            // 1. CORS（必须在认证之前）
            app.UseCors("GameClient");

            // 2. 请求日志中间件
            app.Use(async (context, next) =>
            {
                var requestId = Guid.NewGuid().ToString("N");
                context.Items["RequestId"] = requestId;

                var start = DateTime.UtcNow;
                var method = context.Request.Method;
                var path = context.Request.Path;
                var ip = context.Connection.RemoteIpAddress?.ToString();

                Log.Info($"[HTTP-{requestId}] {method} {path} - IP: {ip}");

                try
                {
                    await next.Invoke();

                    var duration = (DateTime.UtcNow - start).TotalMilliseconds;
                    var status = context.Response.StatusCode;
                    Log.Info($"[HTTP-{requestId}] {status} - {duration}ms");
                }
                catch (Exception e)
                {
                    Log.Error($"[HTTP-{requestId}] 异常: {e.Message}");
                    throw;
                }
            });

            // 3. 认证
            app.UseAuthentication();

            // 4. 授权
            app.UseAuthorization();

            // 5. 自定义响应头
            app.Use(async (context, next) =>
            {
                context.Response.Headers.Add("X-Game-Server", "NBF");
                context.Response.Headers.Add("X-Server-Version", "1.0.0");
                await next.Invoke();
            });

            Log.Info($"[HTTP] 游戏应用配置完成: Scene {self.Scene.SceneConfigId}");

            await FTask.CompletedTask;
        }
    }
}