using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.OpenApi.Models;
using OpenCvSharp;
using SHH.CameraSdk;
using System.Diagnostics;

namespace SHH.CameraSdk
{
    /// <summary>
    /// A 方案：标准控制台结构 (显式 Main 方法 + STAThread)
    /// </summary>
    public class Program
    {
        // [关键点 1] 显式声明 STA 线程模式，确保 OpenCV/GUI 窗口消息循环正常
        [STAThread]
        public static async Task Main(string[] args)
        {
            // ==============================================================================
            // 1. 基础设施初始化
            // ==============================================================================
            InitHardwareEnv();
            using var cameraManager = new CameraManager();

            // [关键点 2] 提升变量作用域
            // 将渲染器(消费者)在 Main 中声明，确保它与主程序同寿命，不会被中途回收
            using var remoteRenderer = new FrameConsumer("Process A Remote Preview");
            remoteRenderer.Start();

            // ==============================================================================
            // 2. 启动 Web 监控与诊断服务
            // ==============================================================================
            var app = await StartWebMonitoring(cameraManager);

            // [新增] 启动网络哨兵 (它会自动在后台跑)
            // 就像保安一样，你不需要管它，它每3秒会把所有摄像头的 IsOnline 状态刷一遍
            var sentinel = new ConnectivitySentinel(cameraManager);

            // ==============================================================================
            // 3. 业务编排：配置设备与流控策略 (8+2 演示)
            // ==============================================================================
            // [关键点 3] 将渲染器作为参数传递进去
            await ConfigureBusinessLogic(cameraManager, remoteRenderer);

            // ==============================================================================
            // 4. 启动引擎与交互
            // ==============================================================================
            Console.WriteLine("\n[系统] 正在启动全局管理引擎...");
            await cameraManager.StartAsync();

            Console.WriteLine(">> 系统就绪。访问 http://localhost:5000/swagger 查看诊断信息。");
            Console.WriteLine(">> 按 'S' 键退出...");

            // [关键点 4] 阻塞主线程
            // 只要这个循环在跑，remoteRenderer 就不会被 Dispose，窗口就会一直存在
            while (Console.ReadKey(true).Key != ConsoleKey.S)
            {
                Thread.Sleep(100);
            }

            Console.WriteLine("[系统] 正在停机...");
            await app.StopAsync();
        }

        // ==============================================================================
        //  Static Methods (原 Local Functions 转换为类的静态方法)
        // ==============================================================================

        static void InitHardwareEnv()
        {
            Console.WriteLine("=== 工业级视频 SDK 架构测试 (V3.3 分层版 - STA模式) ===");
            Console.WriteLine("[硬件] 海康驱动预热中...");
            HikNativeMethods.NET_DVR_Init();
            HikSdkManager.ForceWarmUp(); // 强制加载 PlayCtrl.dll
            Console.WriteLine("[硬件] 预热完成。");
        }

        static async Task<WebApplication> StartWebMonitoring(CameraManager manager)
        {
            var builder = WebApplication.CreateBuilder();

            // [新增] 屏蔽日志配置
            builder.Logging.AddFilter("Microsoft", Microsoft.Extensions.Logging.LogLevel.Warning);
            builder.Logging.AddFilter("System", Microsoft.Extensions.Logging.LogLevel.Warning);
            builder.Logging.AddFilter("Microsoft.AspNetCore.Hosting.Diagnostics", Microsoft.Extensions.Logging.LogLevel.Warning);

            // 注入服务
            builder.Services.AddControllers();
            builder.Services.AddEndpointsApiExplorer();
            builder.Services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new OpenApiInfo { Title = "SHH Camera Diagnostics", Version = "v1" });
            });
            builder.Services.AddCors(o => o.AddPolicy("AllowAll", p => p.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader()));

            // 关键：注入单例 Manager
            builder.Services.AddSingleton(manager);

            var webApp = builder.Build();

            // 配置管道
            webApp.UseSwagger();
            webApp.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "Diagnostics V1"));
            webApp.UseCors("AllowAll");
            webApp.MapControllers();

            // 异步启动，不阻塞主线程
            _ = webApp.RunAsync("http://0.0.0.0:5000");
            Console.WriteLine("[Web] 监控API已启动: http://localhost:5000");

            return webApp;
        }

        // [关键点 5] 方法签名修改：接收 FrameConsumer 参数
        static async Task ConfigureBusinessLogic(CameraManager manager, FrameConsumer renderer)
        {
            // 1. 配置设备
            var config = new VideoSourceConfig
            {
                Id = 101,
                Brand = DeviceBrand.HikVision,
                IpAddress = "172.16.41.206",
                //IpAddress = "192.168.5.9",
                Port = 8000,
                Username = "admin",
                Password = "abcd1234",
                //Password = "RRYFOA",
                StreamType = 0 // 主码流
            };
            manager.AddDevice(config);

            if (manager.GetDevice(101) is HikVideoSource hikCamera)
            {
                // 1. 注册差异化需求 (给每个消费者唯一的 AppId)
                // ----------------------------------------------------
                // 1. 注册需求时，手动加上 _Display 后缀
                hikCamera.Controller.Register("Process_A_Remote_Display", 20);

                // 2. 订阅时，也改用带后缀的名称
                GlobalStreamDispatcher.Subscribe("Process_A_Remote_Display", 101, frame =>
                {
                    frame.AddRef();
                    renderer.Enqueue(frame);
                });
            }

            var config2 = new VideoSourceConfig
            {
                Id = 102,
                Brand = DeviceBrand.HikVision,
                IpAddress = "172.16.41.20",
                Port = 8000,
                Username = "admin",
                Password = "abcd1234",
                StreamType = 0 // 主码流
            };
            manager.AddDevice(config2);

            //if (manager.GetDevice(102) is HikVideoSource hikCamera2)
            //{

            //}
        }
    }
}