<template>
	<div id="UiHeader">
		<el-menu router :default-active="activeIndex" menu-trigger="click" background-color="#545c64" text-color="#fff" active-text-color="#ffd04b" mode="horizontal">
            <el-menu-item index="/">控制台</el-menu-item>
            <el-menu-item index="/deviceList">设备列表</el-menu-item>
            <el-menu-item index="/pushVideoList">推流列表</el-menu-item>
            <el-menu-item index="/streamProxyList">拉流代理</el-menu-item>
            <el-menu-item index="/cloudRecord">云端录像</el-menu-item>
            <el-menu-item index="/mediaServerManger">节点管理</el-menu-item>
            <el-menu-item index="/parentPlatformList/15/1">国标级联</el-menu-item>
            <el-menu-item @click="openDoc">在线文档</el-menu-item>
<!--            <el-submenu index="/setting">-->
<!--              <template slot="title">系统设置</template>-->
<!--              <el-menu-item index="/setting/web">WEB服务</el-menu-item>-->
<!--              <el-menu-item index="/setting/sip">国标服务</el-menu-item>-->
<!--              <el-menu-item index="/setting/media">媒体服务</el-menu-item>-->
<!--            </el-submenu>-->
            <el-switch v-model="alarmNotify"  active-text="报警信息推送" style="display: block float: right" @change="alarmNotifyChannge"></el-switch>
<!--            <el-menu-item style="float: right;" @click="loginout">退出</el-menu-item>-->
            <el-submenu index="" style="float: right;" >
              <template slot="title">欢迎，{{this.$cookies.get("session").username}}</template>
              <el-menu-item @click="changePassword">修改密码</el-menu-item>
              <el-menu-item @click="loginout">注销</el-menu-item>
            </el-submenu>
        </el-menu>
    <changePasswordDialog ref="changePasswordDialog"></changePasswordDialog>
	</div>
</template>

<script>

import changePasswordDialog from './dialog/changePassword.vue'
export default {
    name: "UiHeader",
    components: { Notification, changePasswordDialog },
    data() {
        return {
            alarmNotify: false,
            sseSource: null,
            activeIndex: this.$route.path,
        };
    },
    created(){
      if (this.$route.path.startsWith("/channelList")){
        this.activeIndex = "/deviceList"
      }

    },
    mounted() {
      window.addEventListener('beforeunload', e => this.beforeunloadHandler(e))
      // window.addEventListener('unload', e => this.unloadHandler(e))
      this.alarmNotify = this.getAlarmSwitchStatus() === "true";
      this.sseControl();
    },
    methods:{
  	    loginout(){
          this.$axios({
            method: 'get',
            url:"/api/user/logout"
          }).then((res)=> {
            // 删除cookie，回到登录页面
            this.$cookies.remove("session");
            this.$router.push('/login');
            this.sseSource.close();
          }).catch((error)=> {
            console.error("登出失败")
            console.error(error)
          });
        },
        changePassword(){
          this.$refs.changePasswordDialog.openDialog()
        },
        openDoc(){
  	      console.log(process.env.BASE_API)
          window.open( !!process.env.BASE_API? process.env.BASE_API + "/doc.html": "/doc.html")
        },
        beforeunloadHandler() {
            this.sseSource.close();
        },
        alarmNotifyChannge(){
          this.setAlarmSwitchStatus()
          this.sseControl()
        },
        sseControl() {
            let that = this;
            if (this.alarmNotify) {
              console.log("申请SSE推送API调用，浏览器ID: " + this.$browserId);
              this.sseSource = new EventSource('/api/emit?browserId=' + this.$browserId);
        	    this.sseSource.addEventListener('message', function(evt) {
                    that.$notify({
                        title: '收到报警信息',
                        dangerouslyUseHTMLString: true,
                        message: evt.data,
                        type: 'warning'
                    });
	                console.log("收到信息：" + evt.data);
        	    });
	            this.sseSource.addEventListener('open', function(e) {
        	        console.log("SSE连接打开.");
	            }, false);
        	    this.sseSource.addEventListener('error', function(e) {
	                if (e.target.readyState == EventSource.CLOSED) {
	                    console.log("SSE连接关闭");
        	        } else {
	                    console.log(e.target.readyState);
        	        }
	            }, false);
            } else {
                if (this.sseSource != null) {
                  this.sseSource.removeEventListener('open', null);
                  this.sseSource.removeEventListener('message', null);
                  this.sseSource.removeEventListener('error', null);
                  this.sseSource.close();
                }

            }
        },
        getAlarmSwitchStatus(){
          if (localStorage.getItem("alarmSwitchStatus") == null) {
            localStorage.setItem("alarmSwitchStatus", false);
          }
          return localStorage.getItem("alarmSwitchStatus");
        },
        setAlarmSwitchStatus(){
          localStorage.setItem("alarmSwitchStatus", this.alarmNotify);
        }
    },
    destroyed() {
        window.removeEventListener('beforeunload', e => this.beforeunloadHandler(e))
        if (this.sseSource != null) {
          this.sseSource.removeEventListener('open', null);
          this.sseSource.removeEventListener('message', null);
          this.sseSource.removeEventListener('error', null);
          this.sseSource.close();
        }
    },

 }

</script>
