package websocket

import (
	"fts/handle"
	"github.com/gorilla/websocket"
	"log"
	"net/http"
	"strings"
)

var(
	upgrader = websocket.Upgrader{
		//允许跨域访问
		CheckOrigin: func(r *http.Request) bool {
			return true
		},
	}
)

func UploadHandler(w http.ResponseWriter, r *http.Request) {
	//w.Write([]byte("hello"))
	//收到http请求(upgrade),完成websocket协议转换
	//在应答的header中放上upgrade:websoket
	var (
		conn *websocket.Conn
		err error
		//msgType int
		data []byte
	)
	if conn, err = upgrader.Upgrade(w, r, nil); err !=nil {
		//报错了，直接返回底层的websocket链接就会终断掉
		return
	}
	//得到了websocket.Conn长连接的对象，实现数据的收发
	for {
		//Text(json), Binary
		//if _, data, err = conn.ReadMessage(); err != nil {
		if _, data, err = conn.ReadMessage(); err != nil {
			//报错关闭websocket
			goto ERR
		}
		//发送数据，判断返回值是否报错
		log.Println("param uploadHandler:"+string(data))

		params :=strings.Split(string(data),"|")
		err := handle.UploadCommand(conn,params[0],params[1],params[2],params[3])
		if err!=nil{
			log.Println(err)
			goto ERR
		}
		goto ERR
	}
	//error的标签
ERR:
	conn.Close()
}

func DownloadHandler(w http.ResponseWriter, r *http.Request) {
	//w.Write([]byte("hello"))
	//收到http请求(upgrade),完成websocket协议转换
	//在应答的header中放上upgrade:websoket
	var (
		conn *websocket.Conn
		err error
		//msgType int
		data []byte
	)
	if conn, err = upgrader.Upgrade(w, r, nil); err !=nil {
		//报错了，直接返回底层的websocket链接就会终断掉
		return
	}
	//得到了websocket.Conn长连接的对象，实现数据的收发
	for {
		//Text(json), Binary
		//if _, data, err = conn.ReadMessage(); err != nil {
		if _, data, err = conn.ReadMessage(); err != nil {
			//报错关闭websocket
			goto ERR
		}
		//发送数据，判断返回值是否报错
		log.Println("param downloadHandler:"+string(data))

		params :=strings.Split(string(data),"|")
		err := handle.DownCommand(conn,params[0],params[1],params[2],params[3])
		if err!=nil{
			log.Println(err)
			goto ERR
		}

		goto ERR
	}
	//error的标签
ERR:
	conn.Close()
}

func InitLocalWorkSpaceHandler(w http.ResponseWriter, r *http.Request) {
	//w.Write([]byte("hello"))
	//收到http请求(upgrade),完成websocket协议转换
	//在应答的header中放上upgrade:websoket
	var (
		conn *websocket.Conn
		err error
		//msgType int
		data []byte
	)
	if conn, err = upgrader.Upgrade(w, r, nil); err !=nil {
		//报错了，直接返回底层的websocket链接就会终断掉
		return
	}
	//得到了websocket.Conn长连接的对象，实现数据的收发
	for {
		//Text(json), Binary
		//if _, data, err = conn.ReadMessage(); err != nil {
		if _, data, err = conn.ReadMessage(); err != nil {
			//报错关闭websocket
			goto ERR
		}
		//发送数据，判断返回值是否报错
		log.Println("param initLocalWorkSpaceHandler:"+string(data))

		params :=strings.Split(string(data),"|")
		err := handle.InitLocalWorkSpace(conn,params[0],params[1])
		if err!=nil{
			log.Println(err)
			goto ERR
		}

		goto ERR
	}
	//error的标签
ERR:
	conn.Close()
}

func GetFolderFileInfoHandler(w http.ResponseWriter, r *http.Request) {
	//w.Write([]byte("hello"))
	//收到http请求(upgrade),完成websocket协议转换
	//在应答的header中放上upgrade:websoket
	var (
		conn *websocket.Conn
		err error
		//msgType int
		data []byte
	)
	if conn, err = upgrader.Upgrade(w, r, nil); err !=nil {
		//报错了，直接返回底层的websocket链接就会终断掉
		return
	}
	//得到了websocket.Conn长连接的对象，实现数据的收发
	for {
		//Text(json), Binary
		//if _, data, err = conn.ReadMessage(); err != nil {
		if _, data, err = conn.ReadMessage(); err != nil {
			//报错关闭websocket
			goto ERR
		}
		//发送数据，判断返回值是否报错
		log.Println("param GetFolderFileInfo:"+string(data))

		err := handle.GetFolderFileInfo(conn,string(data))
		if err!=nil{
			log.Println(err)
			goto ERR
		}

		goto ERR
	}
	//error的标签
ERR:
	conn.Close()
}

func SubscriptionFileChangeHandler(w http.ResponseWriter, r *http.Request){
	//w.Write([]byte("hello"))
	//收到http请求(upgrade),完成websocket协议转换
	//在应答的header中放上upgrade:websoket
	var (
		conn *websocket.Conn
		err error
		//msgType int
		data []byte
	)
	if conn, err = upgrader.Upgrade(w, r, nil); err !=nil {
		//报错了，直接返回底层的websocket链接就会终断掉
		return
	}
	//得到了websocket.Conn长连接的对象，实现数据的收发
	for {
		//Text(json), Binary
		//if _, data, err = conn.ReadMessage(); err != nil {
		if _, data, err = conn.ReadMessage(); err != nil {
			//报错关闭websocket
			goto ERR
		}
		//发送数据，判断返回值是否报错
		log.Println("param subscriptionFileChangeHandler:"+string(data))
		err = handle.SubscriptionFileChange(conn,string(data))

		if err != nil {
			//报错了
			log.Println(err)
			goto ERR
		}

	}
	//error的标签
ERR:
	conn.Close()}

func main() {


}