using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using Rhea.Common;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using System.Security.Principal;
using Microsoft.AspNetCore.Builder;
using Tiger.Api;
using Autofac.Extensions.DependencyInjection;
using Autofac;
using Tiger.IBusiness;

var begin = DateTime.Now;
try
{
	//非UI线程未捕获异常处理事件
	AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
	//Task 线程内未捕获异常处理事件
	TaskScheduler.UnobservedTaskException += TaskScheduler_UnobservedTaskException;
	
	bool isService = Debugger.IsAttached ? false : Directory.GetCurrentDirectory().ToLower() == @"c:\windows\system32";
	
	var pathToContentRoot = AppDomain.CurrentDomain.BaseDirectory;
	if (isService)
	{
	    var pathToExe = Process.GetCurrentProcess().MainModule.FileName;
	    pathToContentRoot = Path.GetDirectoryName(pathToExe) + "\\";
	}
	
	var IsRunAsAdmin = new WindowsPrincipal(WindowsIdentity.GetCurrent()).IsInRole(WindowsBuiltInRole.Administrator);
	//var config = (new ConfigurationBuilder().SetBasePath(pathToContentRoot).AddJsonFile("appsettings.json")).Build();
	var prod = (Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyProductAttribute)).First() as AssemblyProductAttribute).Product;
	var vers = (Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyFileVersionAttribute)).First() as AssemblyFileVersionAttribute).Version;
	var desc = (Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyDescriptionAttribute)).First() as AssemblyDescriptionAttribute).Description;
	Logger.Default.Info($"{prod}(Version {vers}) {desc}");
	ConsoleExt.WriteLine("");
	ConsoleExt.WriteLine($"                         {prod}(Version {vers}) Base on .Net 6", ConsoleColor.Green);
	ConsoleExt.WriteLine("");
	ConsoleExt.Write($" ====== > ===== > ==== >---->--->-->-> >  ", ConsoleColor.DarkCyan);
	ConsoleExt.Write($"Link Start{(IsRunAsAdmin ? $" As Admin" : "")}", ConsoleColor.Cyan);
	ConsoleExt.WriteLine($"  < <-<--<---<----< ==== < ===== < ====== ", ConsoleColor.DarkCyan);
	Logger.Console.Info($"Begin to load {prod}");

    System.Net.ServicePointManager.DefaultConnectionLimit = 1024;

    var options = new WebApplicationOptions
	{
	    Args = args,
	    ContentRootPath = pathToContentRoot,
	};

    var builder = WebApplication.CreateBuilder(options);
	builder.Host.UseServiceProviderFactory(new AutofacServiceProviderFactory());
	builder.Host.ConfigureContainer<ContainerBuilder>(builder =>
	{
	    //AutoFac 配置文件注入
	    AutoFacContainer.Init(builder);
	    builder.RegisterBuildCallback(scope =>
	    {
	        AutoFacContainer.Instance = (IContainer)scope;
	        //初始化Business的AutoFacContainer
	        //DI.Resolve<IBiz>().SetContainer(AutoFacContainer.Instance = (IContainer)scope);
	    });
	    //builder.RegisterType<TestService>().As<ITest>();
	});
    
    Logger.Console.Info($"AutoFac container inject successful");
    var startup = new Startup(builder.Configuration);
	startup.ConfigureServices(builder.Services);

    var config = (new ConfigurationBuilder().SetBasePath(pathToContentRoot).AddJsonFile("appsettings.json")).Build();
	var urls = config.AsEnumerable().Where(q => q.Key.StartsWith("StartUpSetting:UseUrls") && q.Value != null).Select(q => q.Value).ToArray();
	builder.WebHost.UseUrls(urls);
	
	builder.WebHost.UseKestrel(opt =>
	{
        // 设置最大连接数
        opt.Limits.MaxConcurrentConnections = null;
        // 设置请求队列的长度
        opt.Limits.MaxConcurrentUpgradedConnections = null;
        opt.Limits.MinRequestBodyDataRate = null;
    });

    if (isService)
	{
		builder.Host.UseWindowsService();
	    Logger.Default.Info("Run Api as Windows Services");
	}
    Logger.Console.Info($"Configure WebApplication successful");
    var app = builder.Build();
    Logger.Console.Info($"Build {prod} successful");
    // Fetch all the dependencies from the DI container 
    // var hostLifetime = app.Services.GetRequiredService<IHostApplicationLifetime>();
    // As pointed out by DavidFowler, IHostApplicationLifetime is exposed directly on ApplicationBuilder
    // Call Configure(), passing in the dependencies
    startup.Configure(app, app.Environment);
	Logger.Console.Info($"Run {prod} Successful");
    Logger.Console.Info($"Total Elapsed Time: {(DateTime.Now - begin).TotalSeconds:0.000} seconds");

    app.Run();
	Logger.Console.Info($"{prod} Host is shut down");
}
catch (System.Exception ex)
{
    Logger.Console.Fatal(ex, "Run {prod} Host Exception");
}
finally
{
    Logger.Console.Info($"Api Host finally shut down");
}


void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
    //StringBuilder sbEx = new StringBuilder();
    //if (e.IsTerminating)
    //{
    //    sbEx.Append("程序发生致命错误，将强制退出！\r\n");
    //}
    //sbEx.Append("非UI线程捕获未处理异常：");
    //if (e.ExceptionObject is Exception)
    //{
    //    sbEx.Append(((Exception)e.ExceptionObject).Message);
    //}
    //else
    //{
    //    sbEx.Append(e.ExceptionObject);
    //}
    //MessageBox.Show(sbEx.ToString());
    if (e.ExceptionObject is Exception)
    {
        Logger.Default.Fatal(e.ExceptionObject as Exception, $"非UI线程捕获未处理异常");
    }
    else
    {
        Logger.Default.Fatal($"非UI线程捕获未处理异常：{e.ExceptionObject}");
    }
}
void TaskScheduler_UnobservedTaskException(object sender, UnobservedTaskExceptionEventArgs e)
{
    //Task 线程内未处理捕获
    Logger.Default.Fatal(e.Exception, $"捕获线程内未处理异常");
    e.SetObserved();//设置该异常已察觉（这样处理后就不会引起程序崩溃）
}

void CreateWindowsServicesBuilder(string[] args)
{
    try
    {
        bool isService = Debugger.IsAttached ? false : Directory.GetCurrentDirectory().ToLower() == @"c:\windows\system32";

        var pathToContentRoot = AppDomain.CurrentDomain.BaseDirectory;
        if (isService)
        {
            var pathToExe = Process.GetCurrentProcess().MainModule.FileName;
            pathToContentRoot = Path.GetDirectoryName(pathToExe) + "\\";
        }

        var IsRunAsAdmin = new WindowsPrincipal(WindowsIdentity.GetCurrent()).IsInRole(WindowsBuiltInRole.Administrator);
        var config = (new ConfigurationBuilder().SetBasePath(pathToContentRoot).AddJsonFile("appsettings.json")).Build();
        var prod = (Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyProductAttribute)).First() as AssemblyProductAttribute).Product;
        var vers = (Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyFileVersionAttribute)).First() as AssemblyFileVersionAttribute).Version;
        var desc = (Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(AssemblyDescriptionAttribute)).First() as AssemblyDescriptionAttribute).Description;
        Logger.Default.Info($"{prod}(Version {vers}) {desc}");
        ConsoleExt.WriteLine("");
        ConsoleExt.WriteLine($"                         {prod}(Version {vers}) Base on .Net 6", ConsoleColor.Green);
        ConsoleExt.WriteLine("");
        ConsoleExt.Write($" ====== > ===== > ==== >---->--->-->-> >  ", ConsoleColor.DarkCyan);
        ConsoleExt.Write($"Link Start{(IsRunAsAdmin ? $" As Admin" : "")}", ConsoleColor.Cyan);
        ConsoleExt.WriteLine($"  < <-<--<---<----< ==== < ===== < ====== ", ConsoleColor.DarkCyan);
        Logger.Console.Info($"Run {prod} Host");
        //var urls = string.IsNullOrEmpty(config["StartUpSetting:UseUrls"]) ? "http://*:3810" : config["StartUpSetting:UseUrls"];
        var urls = config.AsEnumerable().Where(q => q.Key.StartsWith("StartUpSetting:UseUrls") && q.Value != null).Select(q => q.Value).ToArray();
        var host = WebHost.CreateDefaultBuilder(args)
            .UseContentRoot(pathToContentRoot)
            .UseUrls(urls)
            .UseStartup<Startup>()
            .Build();

        if (isService)
        {
            host.RunAsApiService();
            //host.RunAsService();
        }
        else
        {
            Logger.Console.Info($"Run {prod} Host");
            host.Run();
            Logger.Console.Info($"{prod} Host is shut down");
        }
    }
    catch (System.Exception ex)
    {
        Logger.Console.Fatal(ex, "Create Windows Services Failed");
    }
}