using DotNetty.Codecs;
using DotNetty.Transport.Bootstrapping;
using DotNetty.Transport.Channels;
using DotNetty.Transport.Channels.Sockets;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using NearCardAttendance.Common;
using NearCardAttendance.Common.helper;
using NearCardAttendance.Service.TcpServer.Handler;
using NearCardAttendance.Service.TcpServer.Mapper;
using NearCardAttendance.TcpServer.Config;
using Serilog;
using System.Text;

namespace NearCardAttendance.TcpServer
{
    internal class Program
    {
        static void Main(string[] args)
        {
            var config = new ConfigurationBuilder()
               .SetBasePath(Directory.GetCurrentDirectory())
               .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
               .Build();
            Log.Logger = new LoggerConfiguration()
                .ReadFrom.Configuration(config).Enrich.WithThreadInfo()
                .Filter.ByExcluding(logEvent => logEvent.Level == Serilog.Events.LogEventLevel.Verbose) // 过滤掉VRB级别的日志
                .CreateLogger();
            try
            {
                Log.Information("Starting up");

                CreateHostBuilder(args).Build().Run();



            }
            catch (Exception ex)
            {
                Log.Fatal(ex, "Application start-up failed");
            }
            finally
            {
                Log.CloseAndFlush();
            }
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
             Host.CreateDefaultBuilder(args)
            .UseSerilog()
            .ConfigureServices((hostContext, services) => {
                var configuration = hostContext.Configuration;

                #region 配置信息
                //services
                //    .Configure<ServiceConfig>(configuration.GetSection("ServiceConfig"))
                //    ;
                #endregion

                #region Http请求
                services
                    .AddSingleton<HttpHelper>()
                    .AddHttpClient(Consts.DEFAULT_HTTPCLIENT_NAME, c =>
                    {
                        c.Timeout = TimeSpan.FromSeconds(10);   //超时限制
                        c.DefaultRequestHeaders.Add("Accept", "application/json");
                    })
                    ;
                #endregion

                #region TcpService
                services
                    .AddSingleton<ServerBootstrap>(provider =>
                    {
                        var bossGroup = new MultithreadEventLoopGroup();
                        var workerGroup = new MultithreadEventLoopGroup();

                        var bootstrap = new ServerBootstrap();
                        bootstrap.Group(bossGroup, workerGroup)
                                    .Channel<TcpServerSocketChannel>()
                                    .Option(ChannelOption.SoBacklog, 100)
                                    .ChildOption(ChannelOption.TcpNodelay, true) // 低延迟
                                    .ChildHandler(new ActionChannelInitializer<IChannel>(channel =>
                                    {
                                        // var handler = provider.GetRequiredService<ProtocolHandler>();
                                        // var handler = provider.GetRequiredService<SomeServerHandler>();
                                        var pipeline = channel.Pipeline;
                                        pipeline.AddLast(new StringEncoder(Encoding.ASCII));
                                        pipeline.AddLast(
                                            provider.GetRequiredService<ProtocolHandler>(),
                                            provider.GetRequiredService<RegisterHandler>()
                                            //provider.GetRequiredService<HeartBeatHandler>(),
                                            //provider.GetRequiredService<PassThroughHandler>()
                                            ); // Add the injected handler
                                    }));
                        return bootstrap;
                    })
                    .AddSingleton<TcpClientsManager>()
                    .AddSingleton<ScheduleResendManager>()
                    .AddTransient<ProtocolHandler>()
                    .AddTransient<RegisterHandler>()
                    //.AddTransient<HeartBeatHandler>()
                    //.AddTransient<PassThroughHandler>()
                    .AddHostedService<Server>()
                    ;
                #endregion

                
            });
    }
}