package main

import (
	"context"
	"dashboard/controller"
	"dashboard/controller/unisc"
	"dashboard/dao/sqldb"
	"dashboard/logger"
	"dashboard/pkg/errgroups"
	"dashboard/routes"
	"dashboard/services/uniss"
	"dashboard/settings"
	"flag"
	"fmt"

	"github.com/fsnotify/fsnotify"
)

var config = flag.String("f", "./config/config.yaml", "config file path")

func callBack(e fsnotify.Event) {
	// os.Exit(0)
	// fmt.Println(e, os.Args)

	// out, err := exec.Command("go", "run", os.Args[0]).Output()

	// fmt.Println(out, err)
}

func main() {
	flag.Parse()

	sets := settings.New(settings.WithName(*config), settings.WithCallBack(callBack))

	log, err := logger.New(
		logger.WithFileName(sets.LogConfig.Filename),
		logger.WithLevel(sets.LogConfig.Level),
		logger.WithMaxAge(sets.LogConfig.MaxAge),
		logger.WithMaxSize(sets.LogConfig.MaxSize),
		logger.WithMaxBackUp(sets.LogConfig.MaxBackUps),
		logger.WithMode(sets.BaseConfig.Mode),
	)
	if err != nil {
		fmt.Println(err)
		panic(err)
	}
	defer func() {
		_ = log.Sync()
	}()

	log.Info("Settings and log init ok:)")

	db, err := sqldb.NewDb(sets.SqlConfig)
	if err != nil {
		log.Sugar().Panicf("New db error: %v", err)
	}
	defer func() {
		_ = db.GetDb().Close()
	}()

	err = sqldb.SqlDbInit(log, db)
	if err != nil {
		log.Sugar().Panicf("New db error: %v", err)
	}

	// r := routes.Setup(log, *sets.RateLimitConfig, *sets.JwtConfig)

	// listenAndServe(fmt.Sprintf(":%d", sets.BaseConfig.Port), r, log)
	var sunisa []errgroups.FuncWithErr
	var route []unisc.UnisHttpChanneler
	for index := range sets.UnisConfig.Instances {
		sets.UnisConfig.Instances = index
		unis, err := uniss.NewUnis(log, sets.UnisConfig)
		if err != nil {
			panic(err)
		}
		sunisa = append(sunisa, unis)
		route = append(route, unis)
	}

	errwg := errgroups.NewErrGroup()

	errwg.Add(routes.NewRouter(fmt.Sprintf(":%d", sets.BaseConfig.Port),
		log, *sets.RateLimitConfig, controller.NewFileRoute(*sets.JwtConfig),
		unisc.NewHttpRoute(route...)))
	errwg.Add(sunisa...)

	log.Sugar().Fatalln(errwg.Run(context.Background()))
}

/*
func listenAndServe(addr string, handle http.Handler, log *logger.Logger) {
	srv := &http.Server{
		Addr:    addr,
		Handler: handle,
	}

	log.Sugar().Infof("Server listen on %s", addr)
	go func() {
		// 开启一个goroutine启动服务
		if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
			log.Error("listen: %s\n", zap.Error(err))
		}
	}()

	// 等待中断信号来优雅地关闭服务器，为关闭服务器操作设置一个5秒的超时
	quit := make(chan os.Signal, 1) // 创建一个接收信号的通道
	// kill 默认会发送 syscall.SIGTERM 信号
	// kill -2 发送 syscall.SIGINT 信号，我们常用的Ctrl+C就是触发系统SIGINT信号
	// kill -9 发送 syscall.SIGKILL 信号，但是不能被捕获，所以不需要添加它
	// signal.Notify把收到的 syscall.SIGINT或syscall.SIGTERM 信号转发给quit
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM) // 此处不会阻塞
	<-quit                                               // 阻塞在此，当接收到上述两种信号时才会往下执行
	log.Info("Shutdown Server ...")
	// 创建一个5秒超时的context
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()
	// 5秒内优雅关闭服务（将未处理完的请求处理完再关闭服务），超过5秒就超时退出
	if err := srv.Shutdown(ctx); err != nil {
		log.Error("Server Shutdown: ", zap.Error(err))
	}

	log.Info("Server exiting")
}
*/