package controller

import (
	"encoding/json"
	"github.com/gin-gonic/gin"
	"github.com/taoshihan1991/imaptool/tmpl"
	"github.com/taoshihan1991/imaptool/tools"
	"golang.org/x/net/websocket"
	"log"
	"net/http"
	"time"
)

//聊天主界面
func ActionChatMain(w http.ResponseWriter, r *http.Request) {
	render := tmpl.NewRender(w)
	render.Display("chat_main", nil)
}

//聊天客户端界面
func ActionChatPage(w http.ResponseWriter, r *http.Request) {
	render := tmpl.NewRender(w)
	render.Display("chat_page", nil)
}

//咨询界面
func PageChat(c *gin.Context) {
	html := tools.FileGetContent("html/chat_page.html")
	c.Header("Content-Type", "text/html; charset=utf-8")
	c.String(200, html)
}

//获取在线用户
func ChatUsers(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("content-type", "text/json;charset=utf-8;")
	result := make([]map[string]string, 0)
	for uid, _ := range clientList {
		userInfo := make(map[string]string)
		userInfo["uid"] = uid
		userInfo["username"] = clientNameList[uid]
		result = append(result, userInfo)
	}
	msg, _ := json.Marshal(tools.JsonListResult{
		JsonResult: tools.JsonResult{Code: 200, Msg: "获取成功"},
		Result:     result,
	})
	w.Write(msg)
}

type NoticeMessage struct {
	Type interface{} `json:"type"`
	Data interface{} `json:"data"`
}
type TypeMessage struct {
	Type interface{} `json:"type"`
	Data interface{} `json:"data"`
}
type KfMessage struct {
	Kf_name  string `json:"kf_name"`
	Avatar   string `json:"avatar"`
	Kf_id    string `json:"kf_id"`
	Kf_group string `json:"kf_group"`
	Time     string `json:"time"`
	Guest_id string `json:"guest_id"`
	Content  string `json:"content"`
}
type UserMessage struct {
	From_avatar string `json:"from_avatar"`
	From_id     string `json:"from_id"`
	From_name   string `json:"from_name"`
	To_id       string `json:"to_id"`
	To_name     string `json:"to_name"`
	Time        string `json:"time"`
	Content     string `json:"content"`
}

//定时检测客户端是否在线
func init() {
	sendPingToClient()
}

//兼容之前的聊天服务
func ChatServer(w *websocket.Conn) {
	var error error

	for {
		//接受消息
		var receive string
		if error = websocket.Message.Receive(w, &receive); error != nil {
			log.Println("接受消息失败", error)
			break
		}
		log.Println("客户端:", receive)

		var typeMsg TypeMessage
		var kfMsg KfMessage
		var userMsg UserMessage
		json.Unmarshal([]byte(receive), &typeMsg)
		if typeMsg.Type == nil || typeMsg.Data == nil {
			break
		}
		msgType := typeMsg.Type.(string)
		msgData, _ := json.Marshal(typeMsg.Data)

		switch msgType {
		//获取当前在线的所有用户
		case "getOnlineUsers":
			getOnlineUser(w)
		//用户上线
		case "userInit":
			json.Unmarshal(msgData, &userMsg)
			//用户id对应的连接
			clientList[userMsg.From_id] = w
			clientNameList[userMsg.From_id] = userMsg.From_name
			SendUserAllNotice()
		//客服上线
		case "kfOnline":
			json.Unmarshal(msgData, &kfMsg)
			//客服id对应的连接
			kefuList[kfMsg.Kf_id] = w
			//发送给客户
			if len(clientList) == 0 {
				break
			}
			for _, conn := range clientList {
				SendKefuOnline(kfMsg, conn)
			}
			//发送给客服通知
			//SendOnekfuAllNotice(w)
		//客服接手
		case "kfConnect":
			json.Unmarshal(msgData, &kfMsg)
			kefuList[kfMsg.Kf_id] = w
			SendKefuOnline(kfMsg, clientList[kfMsg.Guest_id])
		case "kfChatMessage":
			json.Unmarshal(msgData, &kfMsg)
			conn := clientList[kfMsg.Guest_id]
			if kfMsg.Guest_id == "" || conn == nil {
				return
			}
			msg := NoticeMessage{
				Type: "kfChatMessage",
				Data: KfMessage{
					Kf_name:  kfMsg.Kf_name,
					Avatar:   kfMsg.Avatar,
					Kf_id:    kfMsg.Kf_id,
					Time:     time.Now().Format("2006-01-02 15:04:05"),
					Guest_id: kfMsg.Guest_id,
					Content:  kfMsg.Content,
				},
			}
			str, _ := json.Marshal(msg)
			sendStr := string(str)
			websocket.Message.Send(conn, sendStr)
		case "chatMessage":
			json.Unmarshal(msgData, &userMsg)
			conn := kefuList[userMsg.To_id]
			msg := NoticeMessage{
				Type: "chatMessage",
				Data: UserMessage{
					From_avatar: userMsg.From_avatar,
					From_id:     userMsg.From_id,
					From_name:   userMsg.From_name,
					To_id:       userMsg.To_id,
					To_name:     userMsg.To_name,
					Content:     userMsg.Content,
					Time:        time.Now().Format("2006-01-02 15:04:05"),
				},
			}
			str, _ := json.Marshal(msg)
			sendStr := string(str)
			websocket.Message.Send(conn, sendStr)
		}
	}
}

//发送给所有客服客户上线
func SendUserAllNotice() {
	if len(kefuList) != 0 {
		//发送给客服通知
		for _, conn := range kefuList {
			msg := NoticeMessage{
				Type: "notice",
			}
			str, _ := json.Marshal(msg)
			sendStr := string(str)
			websocket.Message.Send(conn, sendStr)
		}
	}
}

//发送给客户客服上线
func SendKefuOnline(kfMsg KfMessage, conn *websocket.Conn) {
	sendMsg := TypeMessage{
		Type: "kfOnline",
		Data: KfMessage{
			Kf_name:  kfMsg.Kf_name,
			Avatar:   kfMsg.Avatar,
			Kf_id:    kfMsg.Kf_id,
			Kf_group: kfMsg.Kf_group,
			Time:     time.Now().Format("2006-01-02 15:04:05"),
			Content:  "客服上线",
		},
	}
	jsonStrByte, _ := json.Marshal(sendMsg)
	websocket.Message.Send(conn, string(jsonStrByte))
}

//发送给所有客服客户上线
func SendOnekfuAllNotice(conn *websocket.Conn) {
	result := make([]map[string]string, 0)
	for uid, _ := range clientList {
		userInfo := make(map[string]string)
		userInfo["uid"] = uid
		userInfo["username"] = clientNameList[uid]
		result = append(result, userInfo)
	}
	msg := NoticeMessage{
		Type: "notice",
		Data: result,
	}
	str, _ := json.Marshal(msg)
	sendStr := string(str)
	websocket.Message.Send(conn, sendStr)
}

//获取当前的在线用户
func getOnlineUser(w *websocket.Conn) {
	result := make([]map[string]string, 0)
	for uid, _ := range clientList {
		userInfo := make(map[string]string)
		userInfo["uid"] = uid
		userInfo["username"] = clientNameList[uid]
		result = append(result, userInfo)
	}
	msg := NoticeMessage{
		Type: "getOnlineUsers",
		Data: result,
	}
	str, _ := json.Marshal(msg)
	sendStr := string(str)
	websocket.Message.Send(w, sendStr)
}

//定时给客户端发送消息判断客户端是否在线
func sendPingToClient() {
	msg := NoticeMessage{
		Type: "ping",
	}
	go func() {
		for {
			log.Println("check online users...")
			str, _ := json.Marshal(msg)
			sendStr := string(str)
			for uid, conn := range clientList {
				err := websocket.Message.Send(conn, sendStr)
				if err != nil {
					delete(clientList, uid)
					SendUserAllNotice()
				}
			}
			time.Sleep(10 * time.Second)
		}

	}()
}

var clientList = make(map[string]*websocket.Conn)
var clientNameList = make(map[string]string)
var kefuList = make(map[string]*websocket.Conn)