package hotime

import (
	"context"
	"database/sql"
	"io/ioutil"
	"net/http"
	"net/url"
	"os"
	"os/signal"
	"path/filepath"
	"strconv"
	"strings"
	"sync"
	"sync/atomic"
	"syscall"
	"time"

	. "code.hoteas.com/golang/hotime/cache"
	"code.hoteas.com/golang/hotime/code"
	. "code.hoteas.com/golang/hotime/common"
	. "code.hoteas.com/golang/hotime/db"
	"code.hoteas.com/golang/hotime/log"
)

type Application struct {
	MakeCodeRouter map[string]*code.MakeCode
	MethodRouter
	Router
	Log             *log.Logger
	WebConnectLog   *log.Logger
	Port            string                     //端口号
	TLSPort         string                     //ssl访问端口号
	connectListener []func(that *Context) bool //所有的访问监听,true按原计划继续使用，false表示有监听器处理
	connectDbFunc   func() (master, slave *sql.DB)
	configPath      string
	Config          Map
	Db              HoTimeDB
	*HoTimeCache
	*http.Server
	http.Handler
	shuttingDown    atomic.Bool   // 停机标志，置为 true 后新请求立即返回 503
	inFlight        atomic.Int64  // 当前正在处理的请求数（不含已返回 503 的）
	shutdownOnce    sync.Once     // 保证多路触发（信号/关窗口）只执行一次
	DrainTimeout    time.Duration // 返回 503 后等 nginx 切流的最长时长，默认 5s（每 1s 检测在途请求，为 0 则立即进入 Shutdown）
	ShutdownTimeout time.Duration // 等在途请求完成的最长时间，默认 30s
}

func (that *Application) ServeHTTP(w http.ResponseWriter, req *http.Request) {
	if that.shuttingDown.Load() {
		w.Header().Set("Connection", "close")
		http.Error(w, "Service Unavailable", http.StatusServiceUnavailable)
		return
	}
	that.inFlight.Add(1)
	defer that.inFlight.Add(-1)
	that.handler(w, req)
}

// initiateGracefulShutdown 触发优雅停机，通过 sync.Once 保证多路触发只执行一次。
// drain: 返回 503 后等待上游（nginx）完成流量切换的最长时长，每 1s 检测一次在途请求数，
//        若为 0 则立即进入 Shutdown，避免无谓等待。
// shutdown: 等待在途请求完成的最长时间。
func (that *Application) initiateGracefulShutdown(drain, shutdown time.Duration) {
	that.shutdownOnce.Do(func() {
		that.shuttingDown.Store(true)
		that.Log.Infof("优雅停机：新请求已返回 503，最多等 %v 让 nginx 完成流量切换（每秒检测在途请求）...", drain)

		// 每秒检测一次，若无在途请求立即停机，否则最多等满 drain
		tick := time.NewTicker(1 * time.Second)
		defer tick.Stop()
		deadline := time.Now().Add(drain)
		for {
			if n := that.inFlight.Load(); n == 0 {
				that.Log.Infof("无在途请求，立即进入 Shutdown")
				break
			} else if time.Now().After(deadline) {
				that.Log.Infof("drain 等待到达上限 %v，仍有 %d 个在途请求，强制进入 Shutdown", drain, n)
				break
			} else {
				that.Log.Infof("drain 等待中，当前在途请求数=%d", n)
			}
			<-tick.C
		}

		ctx, cancel := context.WithTimeout(context.Background(), shutdown)
		defer cancel()
		that.Log.Infof("停止接受新连接，等进行中请求完成（最多 %v）...", shutdown)
		if err := that.Server.Shutdown(ctx); err != nil {
			that.Log.Errorf("优雅停机超时，强制关闭: %v", err)
		} else {
			that.Log.Infof("服务已安全关闭")
		}
		os.Exit(0)
	})
}

// Run 启动实例
func (that *Application) Run(router Router) {
	//如果没有设置配置自动生成配置
	if that.configPath == "" || len(that.Config) == 0 {
		that.SetConfig()
	}

	//防止手动设置缓存误伤
	if that.HoTimeCache == nil {
		that.SetCache()
	}

	//防止手动设置session误伤
	//if that.sessionShort == nil && that.sessionLong == nil {
	//	if that.connectDbFunc == nil {
	//		that.SetSession(CacheIns(&CacheMemory{}), nil)
	//	} else {
	//		that.SetSession(CacheIns(&CacheMemory{}), CacheIns(&CacheDb{Db: &that.Db, Time: that.Config.GetInt64("cacheLongTime")}))
	//	}
	//
	//}

	//that.Router = router
	if that.Router == nil {
		that.Router = Router{}
	}
	for k, _ := range router {
		v := router[k]
		if that.Router[k] == nil {
			that.Router[k] = v
		}
		//直达接口层复用
		for k1, _ := range v {
			v1 := v[k1]
			if that.Router[k][k1] == nil {
				that.Router[k][k1] = v1
			}

			for k2, _ := range v1 {
				v2 := v1[k2]
				that.Router[k][k1][k2] = v2
			}
		}

	}
	//重新设置MethodRouter//直达路由
	that.MethodRouter = MethodRouter{}
	modeRouterStrict := true
	if that.Config.GetBool("modeRouterStrict") == false {
		modeRouterStrict = false
	}
	if that.Router != nil {
		for pk, pv := range that.Router {
			if !modeRouterStrict {
				pk = strings.ToLower(pk)
			}
			if pv != nil {
				for ck, cv := range pv {
					if !modeRouterStrict {
						ck = strings.ToLower(ck)
					}
					if cv != nil {
						for mk, mv := range cv {
							if !modeRouterStrict {
								mk = strings.ToLower(mk)
							}
							that.MethodRouter["/"+pk+"/"+ck+"/"+mk] = mv
						}
					}
				}
			}
		}
	}

	//that.Port = port
	that.Port = that.Config.GetString("port")
	that.TLSPort = that.Config.GetString("tlsPort")

	if that.connectDbFunc != nil && (that.Db.DB == nil || that.Db.DB.Ping() != nil) {
		that.Db.SetConnect(that.connectDbFunc)
	}

	//异常处理
	defer func() {
		if err := recover(); err != nil {
			if that.shuttingDown.Load() {
				return // 停机过程中的 panic 不触发重启
			}
			//that.SetError(errors.New(fmt.Sprint(err)), LOG_FMT)
			that.Log.Warnf("%v", err)

			that.Run(router)
		}
	}()

	that.Server = &http.Server{}
	if !IsRun {
		IsRun = true
	}

	ch := make(chan int)
	if ObjToCeilInt(that.Port) != 0 {
		go func() {

			App[that.Port] = that
			that.Server.Handler = that
			//启动服务
			that.Server.Addr = ":" + that.Port
			err := that.Server.ListenAndServe()
			if err != nil && err != http.ErrServerClosed {
				that.Log.Error().Err(err).Msg("HTTP 服务退出")
				ch <- 1
			}

		}()
	}

	if ObjToCeilInt(that.TLSPort) != 0 {
		go func() {

			App[that.TLSPort] = that
			that.Server.Handler = that
			//启动服务
			that.Server.Addr = ":" + that.TLSPort
			err := that.Server.ListenAndServeTLS(that.Config.GetString("tlsCert"), that.Config.GetString("tlsKey"))
			if err != nil && err != http.ErrServerClosed {
				that.Log.Error().Err(err).Msg("HTTPS 服务退出")
				ch <- 2
			}

		}()
	}
	if ObjToCeilInt(that.Port) == 0 && ObjToCeilInt(that.TLSPort) == 0 {
		that.Log.Errorf("没有端口启用")
		return

	}

	// 注册 Windows 关窗口处理（Linux/macOS 上是空实现）
	that.registerWindowsCloseHandler()

	// 跨平台信号监听：Ctrl+C / SIGTERM（kill 命令）/ taskkill /PID
	go func() {
		sigCh := make(chan os.Signal, 1)
		signal.Notify(sigCh, os.Interrupt, syscall.SIGTERM)
		<-sigCh
		drain := that.DrainTimeout
		if drain == 0 {
			drain = 5 * time.Second
		}
		shutdown := that.ShutdownTimeout
		if shutdown == 0 {
			shutdown = 30 * time.Second
		}
		that.initiateGracefulShutdown(drain, shutdown)
	}()

	value := <-ch

	that.Log.Errorf("启动服务失败 : %s", ObjToStr(value))
}

// SetConnectDB 启动实例
func (that *Application) SetConnectDB(connect func() (master, slave *sql.DB)) {

	that.connectDbFunc = connect

	that.Db.SetConnect(that.connectDbFunc)

}

// SetDefault 默认配置缓存和session实现
func (that *Application) SetDefault(connect func() (*sql.DB, *sql.DB)) {
	that.SetConfig()

	if connect != nil {
		that.connectDbFunc = connect
		that.Db.SetConnect(that.connectDbFunc)
	}

}

// SetCache 设置配置文件路径全路径或者相对路径
func (that *Application) SetCache() {
	cacheIns := HoTimeCache{}
	cacheIns.Init(that.Config.GetMap("cache"), HoTimeDBInterface(&that.Db), that.Log)
	that.HoTimeCache = &cacheIns
	that.Db.HoTimeCache = &cacheIns
}

// SetConfig 设置配置文件路径全路径或者相对路径
func (that *Application) SetConfig(configPath ...string) {

	that.Log = log.NewLogger(1, "", 100)
	if len(configPath) != 0 {
		that.configPath = configPath[0]
	}

	if that.configPath == "" {
		that.configPath = "config/config.json"
	}
	//加载配置文件
	btes, err := ioutil.ReadFile(that.configPath)
	that.Config = DeepCopyMap(Config).(Map)
	configErr := false
	if err == nil {
		cmap := Map{}
		cmap.JsonToMap(string(btes))

		for k, v := range cmap {
			that.Config[k] = v
			Config[k] = v
		}
	} else {
		that.Log.Errorf("配置文件不存在，或者配置出错，使用缺省默认配置")
	}

	if !configErr {
		configStr := that.Config.ToJsonString()
		if len(btes) != 0 && configStr == string(btes) {
			// 配置无变化，跳过写入
		} else {
			configNoteStr := ConfigNote.ToJsonString()
			_ = os.MkdirAll(filepath.Dir(that.configPath), os.ModeDir)
			err = ioutil.WriteFile(that.configPath, []byte(configStr), os.ModePerm)
			if err != nil {
				that.Log.Error().Err(err).Msg("写入配置文件失败")
				configErr = true
			}
			_ = ioutil.WriteFile(filepath.Dir(that.configPath)+"/configNote.json", []byte(configNoteStr), os.ModePerm)
		}
	}

	logLevel := that.Config.GetCeilInt("logLevel")
	logFile := that.Config.GetString("logFile")
	logHistory := that.Config.GetCeilInt("logHistory")
	if logHistory == 0 {
		logHistory = 100
	}
	that.Log = log.NewLogger(logLevel, logFile, logHistory)
	that.Db.Log = that.Log
	if that.Config.Get("webConnectLogShow") == nil || that.Config.GetBool("webConnectLogShow") {
		that.WebConnectLog = log.NewLoggerNoCaller(1, that.Config.GetString("webConnectLogFile"), 0)
	}

}

// SetConnectListener 连接判断,返回false继续传输至控制层，true则停止传输
func (that *Application) SetConnectListener(lis func(that *Context) (isFinished bool)) {
	that.connectListener = append(that.connectListener, lis)
}

//网络错误
//func (that *Application) session(w http.ResponseWriter, req *http.Request) {
//
//}

// 序列化链接
func (that *Application) urlSer(url string) (string, []string) {
	q := strings.Index(url, "?")
	if q == -1 {
		q = len(url)
	}
	o := Substr(url, 0, q)

	r := strings.SplitN(o, "/", -1)

	var s = make([]string, 0)

	for i := 0; i < len(r); i++ {
		if !strings.EqualFold("", r[i]) {
			s = append(s, r[i])
		}
	}
	return o, s
}

//访问

func (that *Application) handler(w http.ResponseWriter, req *http.Request) {
	nowUnixTime := time.Now()

	_, s := that.urlSer(req.RequestURI)
	//获取cookie
	// 如果cookie存在直接将sessionId赋值为cookie.Value
	// 如果cookie不存在就查找传入的参数中是否有token
	// 如果token不存在就生成随机的sessionId
	// 如果token存在就判断token是否在Session中有保存
	// 如果有取出token并复制给cookie
	// 没有保存就生成随机的session
	cookie, err := req.Cookie(that.Config.GetString("sessionName"))
	sessionId := Md5(strconv.Itoa(Rand(10)))
	needSetCookie := ""
	token := req.Header.Get("Authorization")
	if len(token) != 32 {

		token = req.FormValue("token")
	}
	//没有cookie或者cookie不等于token
	//有token优先token
	if len(token) == 32 {
		sessionId = token
		//没有token，则查阅session
		if cookie == nil || cookie.Value != sessionId {
			needSetCookie = sessionId
		}
	} else if err == nil && cookie.Value != "" {
		sessionId = cookie.Value
		//session也没有则判断是否创建cookie
	} else {
		needSetCookie = sessionId
	}

	unescapeUrl, err := url.QueryUnescape(req.RequestURI)
	if err != nil {
		unescapeUrl = req.RequestURI
	}
	//访问实例
	context := Context{SessionIns: SessionIns{SessionId: sessionId, HoTimeCache: that.HoTimeCache},
		Resp: w, Req: req, Application: that, RouterString: s, Config: that.Config, Db: &that.Db,
		HandlerStr: unescapeUrl}
	//header默认设置
	header := w.Header()
	header.Set("Content-Type", "text/html; charset=utf-8")

	//url去掉参数并序列化
	context.HandlerStr, context.RouterString = that.urlSer(context.HandlerStr)

	//跨域设置
	that.crossDomain(&context, needSetCookie)

	defer func() {
		//是否展示日志
		if that.WebConnectLog != nil {

			//负载均衡优化
			ipStr := ""
			if req.Header.Get("X-Forwarded-For") != "" {
				ipStr = req.Header.Get("X-Forwarded-For")
			} else if req.Header.Get("X-Real-IP") != "" {
				ipStr = req.Header.Get("X-Real-IP")
			}
			//负载均衡优化
			if ipStr == "" {
				//RemoteAddr := that.Req.RemoteAddr
				ipStr = Substr(context.Req.RemoteAddr, 0, strings.Index(context.Req.RemoteAddr, ":"))
			}

			that.WebConnectLog.Info().
				Str("ip", ipStr).
				Str("method", context.Req.Method).
				Float64("cost_ms", ObjToFloat64(time.Now().UnixNano()-nowUnixTime.UnixNano())/1000000.00).
				Float64("size_kb", ObjToFloat64(context.DataSize)/1000.00).
				Msg(context.HandlerStr)
		}
	}()

	//访问拦截true继续false暂停
	connectListenerLen := len(that.connectListener) - 1

	for true {
		if connectListenerLen < 0 {
			break
		}
		if that.connectListener[connectListenerLen](&context) {
			context.View()
			return
		}
		connectListenerLen--
	}

	//接口服务
	//验证接口严格模式
	modeRouterStrict := that.Config.GetBool("modeRouterStrict")
	tempHandlerStr := context.HandlerStr
	if !modeRouterStrict {
		tempHandlerStr = strings.ToLower(tempHandlerStr)
	}

	//执行接口
	if that.MethodRouter[tempHandlerStr] != nil {
		that.MethodRouter[tempHandlerStr](&context)
		context.View()
		return
	}

	//url赋值，静态文件必须使用原始路径（Linux文件系统大小写敏感）
	path := that.Config.GetString("tpt") + context.HandlerStr

	//判断是否为默认
	if path[len(path)-1] == '/' {
		defFile := that.Config.GetSlice("defFile")

		for i := 0; i < len(defFile); i++ {
			temp := path + defFile.GetString(i)
			_, err := os.Stat(temp)

			if err == nil {
				path = temp
				break
			}
		}
		if path[len(path)-1] == '/' {
			w.WriteHeader(404)
			return
		}
	}

	if strings.Contains(path, "/.") {
		w.WriteHeader(404)
		return
	}

	//设置header
	delete(header, "Content-Type")
	if that.Config.GetCeilInt("logLevel") == 0 {
		header.Set("Cache-Control", "public")
	} else {
		header.Set("Cache-Control", "no-cache")
	}

	t := strings.LastIndex(path, ".")
	if t != -1 {
		tt := strings.ToLower(path[t:])

		if MimeMaps[tt] != "" {

			header.Add("Content-Type", MimeMaps[tt])
		}
	}

	//w.Write(data)
	http.ServeFile(w, req, path)

}

func (that *Application) crossDomain(context *Context, sessionId string) {

	//没有跨域设置
	if context.Config.GetString("crossDomain") == "" {
		if sessionId != "" {
			http.SetCookie(context.Resp, &http.Cookie{Name: that.Config.GetString("sessionName"), Value: sessionId, Path: "/"})
			//context.Resp.Header().Set("Set-Cookie", that.Config.GetString("sessionName")+"="+sessionId+"; Path=/; SameSite=None; Secure")
		}

		return
	}

	header := context.Resp.Header()

	//不跨域,则不设置
	remoteHost := context.Req.Host
	if context.Config.GetString("port") == "80" || context.Config.GetString("port") == "443" {
		remoteHost = remoteHost + ":" + context.Config.GetString("port")
	}
	if context.Config.GetString("crossDomain") != "auto" {
		//不跨域,则不设置
		if strings.Contains(context.Config.GetString("crossDomain"), remoteHost) {

			if sessionId != "" {
				http.SetCookie(context.Resp, &http.Cookie{Name: that.Config.GetString("sessionName"), Value: sessionId, Path: "/"})
			}
			return
		}
		header.Set("Access-Control-Allow-Origin", that.Config.GetString("crossDomain"))
		// 后端设置，2592000单位秒，这里是30天
		header.Set("Access-Control-Max-Age", "2592000")

		//header.Set("Access-Control-Allow-Origin", "*")
		header.Set("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,DELETE")
		header.Set("Access-Control-Allow-Credentials", "true")
		header.Set("Access-Control-Expose-Headers", "*")
		header.Set("Access-Control-Allow-Headers", "X-Requested-With,Content-Type,Access-Token,Authorization,Cookie,Set-Cookie")

		if sessionId != "" {
			//跨域允许需要设置cookie的允许跨域https才有效果
			context.Resp.Header().Set("Set-Cookie", that.Config.GetString("sessionName")+"="+sessionId+"; Path=/; SameSite=None; Secure")
		}
		return
	}

	origin := context.Req.Header.Get("Origin")

	refer := context.Req.Header.Get("Referer")
	if (origin != "" && strings.Contains(origin, remoteHost)) || strings.Contains(refer, remoteHost) {

		if sessionId != "" {
			//http.SetCookie(context.Resp, &http.Cookie{Name: that.Config.GetString("sessionName"), Value: sessionId, Path: "/"})
			context.Resp.Header().Set("Set-Cookie", that.Config.GetString("sessionName")+"="+sessionId+"; Path=/; SameSite=None; Secure")
		}

		return
	}

	if origin != "" {
		header.Set("Access-Control-Allow-Origin", origin)
		//return
	} else if refer != "" {
		tempInt := 0
		lastInt := strings.IndexFunc(refer, func(r rune) bool {
			if r == '/' && tempInt > 8 {
				return true
			}
			tempInt++
			return false
		})

		if lastInt < 0 {
			lastInt = len(refer)
		}
		refer = Substr(refer, 0, lastInt)
		header.Set("Access-Control-Allow-Origin", refer)
		//header.Set("Access-Control-Allow-Origin", "*")

	}

	header.Set("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,DELETE")
	header.Set("Access-Control-Allow-Credentials", "true")
	header.Set("Access-Control-Expose-Headers", "*")
	header.Set("Access-Control-Allow-Headers", "X-Requested-With,Content-Type,Access-Token,Authorization,Cookie,Set-Cookie")

	if sessionId != "" {
		//跨域允许需要设置cookie的允许跨域https才有效果
		context.Resp.Header().Set("Set-Cookie", that.Config.GetString("sessionName")+"="+sessionId+"; Path=/; SameSite=None; Secure")
	}

}

// Init 初始化application
func Init(config string) *Application {
	appIns := Application{}
	//手动模式，
	appIns.SetConfig(config)

	SetDB(&appIns)
	appIns.SetCache()
	codeConfig := appIns.Config.GetSlice("codeConfig")

	if codeConfig != nil {

		for k, _ := range codeConfig {
			codeMake := codeConfig.GetMap(k)
			if codeMake == nil {
				continue
			}
			//codeMake["table"] = k
			if appIns.MakeCodeRouter == nil {
				appIns.MakeCodeRouter = map[string]*code.MakeCode{}
			}

			if codeMake.GetString("name") == "" {
				codeMake["name"] = codeMake.GetString("table")
			}

			appIns.MakeCodeRouter[codeMake.GetString("name")] = &code.MakeCode{Log: appIns.Log}
			appIns.MakeCodeRouter[codeMake.GetString("name")].Db2JSON(&appIns.Db, codeMake)

			//接入动态代码层
			if appIns.Router == nil {
				appIns.Router = Router{}
			}

			//appIns.Router[codeMake.GetString("name")] = TptProject
			appIns.Router[codeMake.GetString("name")] = Proj{}

			for k2, _ := range TptProject {
				if appIns.Router[codeMake.GetString("name")][k2] == nil {
					appIns.Router[codeMake.GetString("name")][k2] = Ctr{}
				}
				for k3, _ := range TptProject[k2] {
					v3 := TptProject[k2][k3]
					appIns.Router[codeMake.GetString("name")][k2][k3] = v3
				}
			}

			for k1, _ := range appIns.MakeCodeRouter[codeMake.GetString("name")].TableColumns {
				if appIns.Router[codeMake.GetString("name")][k1] == nil {
					appIns.Router[codeMake.GetString("name")][k1] = Ctr{}
				}

				for k2, _ := range appIns.Router[codeMake.GetString("name")]["hotimeCommon"] {
					//golang毛病
					v2 := appIns.Router[codeMake.GetString("name")]["hotimeCommon"][k2]
					appIns.Router[codeMake.GetString("name")][k1][k2] = v2
				}
			}

			setMakeCodeListener(codeMake.GetString("name"), &appIns)

		}

	}

	return &appIns
}

// SetDB 智能数据库设置
func SetDB(appIns *Application) {
	db := appIns.Config.GetMap("db")
	dbSqlite := db.GetMap("sqlite")
	dbMysql := db.GetMap("mysql")
	dbDm := db.GetMap("dm")
	if db != nil && dbSqlite != nil {
		SetSqliteDB(appIns, dbSqlite)
	}
	if db != nil && dbMysql != nil {
		SetMysqlDB(appIns, dbMysql)
	}
	if db != nil && dbDm != nil {
		SetDmDB(appIns, dbDm)
	}
}
func SetMysqlDB(appIns *Application, config Map) {

	appIns.Db.Type = "mysql"
	appIns.Db.DBName = config.GetString("name")
	appIns.Db.Prefix = config.GetString("prefix")
	appIns.Db.Log = appIns.Log
	appIns.SetConnectDB(func() (master, slave *sql.DB) {
		query := config.GetString("user") + ":" + config.GetString("password") +
			"@tcp(" + config.GetString("host") + ":" + config.GetString("port") + ")/" + config.GetString("name") + "?charset=utf8"
		DB, e := sql.Open("mysql", query)
		if e != nil {
			appIns.Log.Error().Err(e).Msg("MySQL 主库连接失败")
		}
		master = DB
		configSlave := config.GetMap("slave")
		if configSlave != nil {
			query := configSlave.GetString("user") + ":" + configSlave.GetString("password") +
				"@tcp(" + config.GetString("host") + ":" + configSlave.GetString("port") + ")/" + configSlave.GetString("name") + "?charset=utf8"
			DB1, e := sql.Open("mysql", query)
			if e != nil {
				appIns.Log.Error().Err(e).Msg("MySQL 从库连接失败")
			}
			slave = DB1
		}

		return master, slave
	})
}
func SetSqliteDB(appIns *Application, config Map) {

	appIns.Db.Type = "sqlite"
	appIns.Db.Prefix = config.GetString("prefix")
	appIns.Db.Log = appIns.Log
	appIns.SetConnectDB(func() (master, slave *sql.DB) {
		db, e := sql.Open("sqlite3", config.GetString("path"))
		if e != nil {
			appIns.Log.Error().Err(e).Msg("SQLite 连接失败")
		}
		master = db
		return master, slave
	})
}

func SetDmDB(appIns *Application, config Map) {
	appIns.Db.Type = "dm"
	appIns.Db.DBName = config.GetString("name")
	appIns.Db.Prefix = config.GetString("prefix")
	appIns.Db.Log = appIns.Log
	appIns.SetConnectDB(func() (master, slave *sql.DB) {
		query := "dm://" + config.GetString("user") + ":" + config.GetString("password") +
			"@" + config.GetString("host") + ":" + config.GetString("port") + "?schema=" + config.GetString("name")
		DB, e := sql.Open("dm", query)
		if e != nil {
			appIns.Log.Error().Err(e).Msg("达梦主库连接失败")
		}
		master = DB
		configSlave := config.GetMap("slave")
		if configSlave != nil {
			querySlave := "dm://" + configSlave.GetString("user") + ":" + configSlave.GetString("password") +
				"@" + configSlave.GetString("host") + ":" + configSlave.GetString("port") + "?schema=" + configSlave.GetString("name")
			DB1, e := sql.Open("dm", querySlave)
			if e != nil {
				appIns.Log.Error().Err(e).Msg("达梦从库连接失败")
			}
			slave = DB1
		}
		return master, slave
	})
}

func setMakeCodeListener(name string, appIns *Application) {
	appIns.SetConnectListener(func(context *Context) (isFinished bool) {

		codeIns := appIns.MakeCodeRouter[name]

		if len(context.RouterString) < 2 || appIns.MakeCodeRouter[context.RouterString[0]] == nil {
			return isFinished
		}

		if len(context.RouterString) > 1 && context.RouterString[0] == name {
			if context.RouterString[1] == "hotime" && context.RouterString[2] == "login" {
				return isFinished
			}
			if context.RouterString[1] == "hotime" && context.RouterString[2] == "logout" {
				return isFinished
			}

			if context.RouterString[1] == "hotime" && context.RouterString[2] == "config" {
				return isFinished
			}
			if context.RouterString[1] == "hotime" && context.RouterString[2] == "wallpaper" {
				return isFinished
			}
			if context.Session(codeIns.FileConfig.GetString("table")+"_id").Data == nil {
				context.Display(2, "你还没有登录")
				return true
			}
		}

		if context.RouterString[0] != name {
			return isFinished
		}
		if len(context.RouterString) < 2 || len(context.RouterString) > 3 ||
			!(context.Router[context.RouterString[0]] != nil &&
				context.Router[context.RouterString[0]][context.RouterString[1]] != nil) {
			return isFinished
		}
		//排除无效操作
		if len(context.RouterString) == 2 &&
			context.Req.Method != "GET" &&
			context.Req.Method != "POST" {
			return isFinished
		}
		//排除已有接口的无效操作
		if len(context.RouterString) == 3 && context.Router[context.RouterString[0]] != nil && context.Router[context.RouterString[0]][context.RouterString[1]] != nil && context.Router[context.RouterString[0]][context.RouterString[1]][context.RouterString[2]] != nil {
			return isFinished
		}

		//列表检索
		if len(context.RouterString) == 2 &&
			context.Req.Method == "GET" {
			if context.Router[context.RouterString[0]][context.RouterString[1]]["search"] == nil {
				return isFinished
			}
			context.Router[context.RouterString[0]][context.RouterString[1]]["search"](context)
		}
		//新建
		if len(context.RouterString) == 2 &&
			context.Req.Method == "POST" {
			if context.Router[context.RouterString[0]][context.RouterString[1]]["add"] == nil {
				return true
			}
			context.Router[context.RouterString[0]][context.RouterString[1]]["add"](context)
		}
		if len(context.RouterString) == 3 &&
			context.Req.Method == "POST" {
			return isFinished
		}
		//分析
		if len(context.RouterString) == 3 && context.RouterString[2] == "analyse" &&
			context.Req.Method == "GET" {

			if context.Router[context.RouterString[0]][context.RouterString[1]]["analyse"] == nil {
				return isFinished
			}

			context.Router[context.RouterString[0]][context.RouterString[1]]["analyse"](context)
		}
		//查询单条
		if len(context.RouterString) == 3 &&
			context.Req.Method == "GET" {

			if context.Router[context.RouterString[0]][context.RouterString[1]]["info"] == nil {
				return isFinished
			}

			context.Router[context.RouterString[0]][context.RouterString[1]]["info"](context)
		}
		//更新
		if len(context.RouterString) == 3 &&
			context.Req.Method == "PUT" {

			if context.Router[context.RouterString[0]][context.RouterString[1]]["update"] == nil {
				return true
			}

			context.Router[context.RouterString[0]][context.RouterString[1]]["update"](context)
		}
		//移除
		if len(context.RouterString) == 3 &&
			context.Req.Method == "DELETE" {

			if context.Router[context.RouterString[0]][context.RouterString[1]]["remove"] == nil {
				return true
			}

			context.Router[context.RouterString[0]][context.RouterString[1]]["remove"](context)
		}

		//context.View()
		return true
	})
}