package web

import (
	"context"
	"math/rand"
	"net/http"
	"server/call"
	"server/config"
	"server/db"
	edb "server/db/es"
	mdb "server/db/mysql"
	rdb "server/db/redis"
	"server/modules/web/routers"
	"server/util"
	"time"

	"github.com/liangdas/mqant/conf"
	"github.com/liangdas/mqant/log"
	"github.com/liangdas/mqant/module"
	basemodule "github.com/liangdas/mqant/module/base"
)

var Module = func() module.Module {
	this := new(Web)
	return this
}

type Web struct {
	basemodule.BaseModule
	//addr string

	httpSvr *http.Server
	// httpSvr2 *http.Server
}

func (w *Web) GetType() string {
	//很关键,需要与配置文件中的Module配置对应
	return "web"
}
func (w *Web) Version() string {
	//可以在监控时了解代码版本
	return "1.0.0"
}
func (w *Web) OnInit(app module.App, settings *conf.ModuleSettings) {
	w.BaseModule.OnInit(w, app, settings)

	db.InitDB(&rdb.RedisClient{}, &edb.EsClient{}, &mdb.MysqlClient{})
	log.Info("[%v]module init finish, config:%+v", w.GetType(), config.GetConfig().Web)
	log.Info("[%v]module init finish, base:%+v", w.GetType(), config.GetBase())

	// 自动初始化数据库
	// MigrateDB()

	call.NewCaller(w)

	call.NewSnowflake(int64(config.GetConfig().WorkID))

	// 创建一个随机数生成器
	rand.Seed(time.Now().UnixNano())

	// 后台改配置
	if err := loadConfig(); err != nil {
		log.Error("err:%v", err)
		panic(err)
	}

	call.InitReload(w.App.Transport())
	if err := call.LoadIpDB(); err != nil {
		log.Error("err:%v", err)
		panic(err)
	}

	// 拉取缓存数据
	util.Go(func() {
		FetchDatas()
	})
}

func (wb *Web) startHttpServer() {
	webcfg := config.GetConfig().Web
	router := routers.SetUpRouter()
	srv := &http.Server{
		Addr:    webcfg.Addr,
		Handler: router,
	}

	go func() {
		if config.GetConfig().Web.TLS {
			if err := srv.ListenAndServeTLS(webcfg.CertFile, webcfg.KeyFile); err != nil {
				log.Error("web ListenAndServeTLS fail error:%v", err)
			}
		} else {
			if err := srv.ListenAndServe(); err != nil {
				log.Error("web ListenAndServe fail error:%v", err)
			}
		}

	}()
	// srv2 := &http.Server{
	// 	Addr:    ":80",
	// 	Handler: router,
	// }
	// go func() {
	// 	if err := srv2.ListenAndServe(); err != nil {
	// 		log.Error("web ListenAndServe fail error:%v", err)
	// 	}
	// }()
	// returning reference so caller can call Shutdown()
	wb.httpSvr = srv
	// wb.httpSvr2 = srv2
}

func (w *Web) Run(closeSig chan bool) {
	log.Info("web: starting HTTP server :%s", config.GetConfig().Web.Addr)
	w.startHttpServer()
	<-closeSig
	log.Info("web: stopping HTTP server")

}

func (w *Web) OnDestroy() {
	// The context is used to inform the server it has 5 seconds to finish
	// the request it is currently handling
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()

	// now close the server gracefully ("shutdown")
	// timeout could be given instead of nil as a https://golang.org/pkg/context/
	if err := w.httpSvr.Shutdown(ctx); err != nil {
		log.Error("OnDestroy web Shutdown error:%v", err)
	}
	// if err := w.httpSvr2.Shutdown(ctx); err != nil {
	// 	log.Error("OnDestroy web Shutdown error:%v", err)
	// }

	log.Info("web: done. exiting")

	//一定别忘了继承
	w.BaseModule.OnDestroy()

	log.Info("web 模块已销毁")
}