package server

import (
	"context"
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"
	"videoweb/pub/common/laosiji"
	"videoweb/pub/common/log"
	"videoweb/pub/common/srvversion"
	"videoweb/pub/esmanager"
	"videoweb/pub/models"
	"videoweb/pub/mongos"
	"videoweb/pub/payCenter"
	"videoweb/pub/redis"
	"videoweb/pub/seo/googleindex"
	"videoweb/pub/storage/proxy"
	"videoweb/web/router"
	"videoweb/web/service"
	"videoweb/web/webg"

	"gopkg.in/yaml.v2"
)

func init() {
	time.Local, _ = time.LoadLocation("Asia/Shanghai")
}
func Run(args []string) {
	showVersion()
	if err := initConfig(); err != nil {
		log.Error("init config err", log.E(err))
		os.Exit(1)
		return
	}

	shopDb := mongos.NewManager(webg.Conf.Mongodb.Addr)
	if err := shopDb.Init(); err != nil {
		log.Error("connect shopDb err", log.E(err))
		os.Exit(1)
	}
	mongos.Shop = shopDb

	shopLog := mongos.NewManager(webg.Conf.Mongodb.LogAddr)
	if err := shopLog.Init(); err != nil {
		log.Error("connect shopLog err", log.E(err))
		os.Exit(1)
	}
	mongos.ShopLog = shopLog

	if err := redis.Init(redis.Options{
		Addr: webg.Conf.Redis.Addr,
		Psw:  webg.Conf.Redis.Passwd,
		Db:   webg.Conf.Redis.Db,
	}); err != nil {
		log.Error("redis connect err", log.E(err))
		os.Exit(1)
	}

	if err := initCollections(); err != nil {
		os.Exit(1)
		return
	}

	if err := initElasticSearch(); err != nil {
		log.Error("init ES failed", log.E(err))
		os.Exit(1)
	}
	//初始化tg机器人
	if webg.Conf.TgToken != "" {
		//tgbot.InitTgBot(webg.Conf.TgToken, "[汁乎Web]")
	}

	proxy.InitBucketVideoAddress(webg.Conf.BucketVideoAddressV2)
	initLaosiji()
	mongos.StartLid()
	initData()
	initSeoPush()

	initHttpServer()

	shutdownHandler()
}

func showVersion() {
	log.Info(fmt.Sprintf("sevice version:%s", srvversion.SERVICE_VERSION))
	log.Info(fmt.Sprintf("git version:%s", srvversion.GIT_VERSION))
	log.Info(fmt.Sprintf("build date:%s", srvversion.BUILD_DATE))
	log.Info(fmt.Sprintf("build ip:%s", srvversion.BUILD_IP))
}

func initConfig() error {

	buf, err := ioutil.ReadFile("conf/web.yaml")
	if err != nil {
		return err
	}

	if err = yaml.Unmarshal(buf, &webg.Conf); err != nil {
		return err
	}
	payCenter.Init(webg.Conf.NewPayCenter)

	return nil
}

// mongo表
func initCollections() error {
	return nil
}

// 数据
func initData() {
	models.Init()
	service.Start()
}

// 搜索引擎推送
func initSeoPush() {
	if webg.Conf.RunMod != "prod" {
		return
	}
	googleindex.Init(context.Background())
}

func initElasticSearch() error {
	es, err := esmanager.NewManager(webg.Conf.Es.Addr,
		webg.Conf.Es.User, webg.Conf.Es.Pass)
	if err != nil {
		log.Info("new es failed", log.Any("err", err))
		return err
	}
	if err = es.ClientConnect(); err != nil {
		log.Info("connect es failed", log.Any("err", err))
		return err
	}
	esmanager.Instance = es
	log.Info("es:Init Ok!")
	return nil
}

func initHttpServer() {

	addr := fmt.Sprintf(":%s", webg.Conf.ListenAddr)
	srv := &http.Server{
		Addr:    addr,
		Handler: router.Init(),
	}

	go func() {
		log.Info("服务已启动", log.Any("地址", addr))
		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatal("listen:", log.E(err))
		}
	}()
}

func shutdownHandler() {
	quit := make(chan os.Signal)
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM, os.Kill)
	<-quit
	log.Warn("Shutdown... server")
	service.Stop()

	done := make(chan struct{})
	go func() {
		mongos.Shop.DisConnect()
		mongos.ShopLog.DisConnect()
		redis.Disconnect()
		// srv_resource.ClosePrefetch()
		done <- struct{}{}
	}()
	select {
	case <-time.After(5 * time.Second):
		log.Warn("shutdown timeout....")
	case <-done:
		log.Info("graceful shutdown")
	}
}

func initLaosiji() {
	if webg.Conf.LsjMediaConf.ApiUrl == "" {
		return
	}
	cli := laosiji.New(webg.Conf.LsjMediaConf.ApiUrl, webg.Conf.LsjMediaConf.AppId, webg.Conf.LsjMediaConf.ApiKey)
	d := laosiji.NewDomains(cli)
	laosiji.LaosijiClient = cli
	laosiji.LaosijiDomains = d

	hr := webg.Conf.LsjMediaConf.DomainsRefreshHr
	if hr <= 0 {
		hr = 3
	}
	d.StartAutoRefresh(time.Duration(hr) * time.Hour)

	go func() {
		ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
		defer cancel()
		if _, err := d.Refresh(ctx); err != nil {
			log.Error("Init Laosiji domains 首次拉取失败（后台重试，不影响启动）", log.E(err))
		} else {
			log.Info("Init Laosiji OK...")
		}
	}()
}