var MSGDiv = "";
var MQTTPre = "";
var MQTTOptions = {};
var MQTTClent = null;
var MQTTClientId = "";
var MQTTC2STopic = "";
var MQTTS2CTopic = "";

var MSGNewNum = 0;
var MQTTReconnectNum = 0;
var MQTTReconnectNumMax = 500;
var MQTTConnectFlag = false;
var MQTTReconnectT = null;

function setMqttState() {
    // $("#" + MSGDiv).removeClass("text-main icon-paw text-dot icon-frown-o");
    if (MQTTConnectFlag) {
        $("#div_main")[0].contentWindow.showMsg("", "云台服务已上线");
       // showH5Alert("setMqttState", "已上线");
    } else {
        $("#div_main")[0].contentWindow.showMsgwebsoket("", "yt_error_icon", "bg-dot");//云台服务已离线
        //showH5Alert("setMqttState", "未连接服务器");
    }
}

function startMQTT(_mqtt) {
    //alert(JSON.stringify(_mqtt));
    MQTTPre = "hkipc";
    //mqtt
    MQTTC2STopic = MQTTPre + "/c2b";
    MQTTS2CTopic = MQTTPre + "/b2c";
    MQTTClientId = MQTTPre + "WEB_" + getRandomDate();
    MQTTClent = new Paho.Client(_mqtt.ip, parseInt(_mqtt.port),"/ws", MQTTClientId);
    // var willMessage = new Paho.Message(JSON.stringify({
    //     clienttype: "web",
    //     ucid: _mqtt.uinstid + "|web",
    //     cid: _mqtt.uinstid + "|web",
    //     clientid: MQTTClientId,
    //     clientop: "close",
    //     token: ""
    // }));
    // willMessage.destinationName = "WILLTOPIC/" + _mqtt.uinstid + "/Web";
    // willMessage.qos = 1;
    // willMessage.retained = true;
    MQTTOptions = {
        invocationContext: {
            host: _mqtt.ip,
            port: _mqtt.port,
            path: MQTTClent.path,
            clientId: MQTTClientId
        },
        timeout: 60,
        keepAliveInterval: 120,
        cleanSession: true,
        useSSL: false,
        //willMessage: willMessage,
        userName: _mqtt.user,
        password: _mqtt.password,
        onSuccess: onMQTTConnect,

        onFailure: function (e) {
            //showH5Alert("MQTT_ERR", "消息服务器连接失败！");
            $("#div_main")[0].contentWindow.showMsgwebsoket("", "yt_error_icon", "bg-dot");
            //连接失败定时重连
        }
    };
    MQTTClent.onConnectionLost = onMQTTConnectionLost;
    MQTTClent.onMessageArrived = onMQTTMessageArrived;
    setTimeout(function () {
        MQTTClent.connect(MQTTOptions);
    }, 2000);

}

//连接服务器并注册连接成功处理事件
function onMQTTConnect() {
    //初始化数据
    closeMQTTTimes();
    setMqttState();
    MQTTClent.subscribe(MQTTC2STopic);

    //var _msg = "<li class='divlmsg text-main' style='padding:8px;cursor: pointer;font-weight:bold;' onclick=\"setMSGNewNum(false);$(this).css('font-weight','');\">[消息服务器]连接成功！！</li>";
    //$("#div_msglist").prepend(_msg);
    //setMSGNewNum(true);
}


//注册连接断开处理事件
function onMQTTConnectionLost(responseObject) {
    console.log("onConnectionLost:" + JSON.stringify(responseObject));
    if (responseObject.errorCode !== 0) {
        //console.log("onConnectionLost:" + responseObject.errorMessage);
        // var _msg = "<li class='divlmsg text-dot' style='padding:8px;cursor: pointer;font-weight:bold;' onclick=\"setMSGNewNum(false);$(this).css('font-weight','');\">[消息服务器]连接断开！！等待重连……</li>";
        // $("#div_msglist").prepend(_msg);
        // setMSGNewNum(true);
        MQTTConnectFlag = false;
        setMqttState();
        if (MQTTReconnectT == null) {
            MQTTReconnectT = setInterval(function () {
                reConnectMQTT();
            }, 20000);
        }
    }
}

//注册消息接收处理事件
function onMQTTMessageArrived(message) {
    
    //console.log("onMQTTMessageArrived:" + JSON.stringify(message));
    if (message != "") {
        var hasDlg = false;
        var _oldD = decodeURIComponent(message.payloadString);
        _oldD = _oldD.replace(/%20/g, " ");
        var _d = JSON.parse(_oldD);
        //$("#opinfo").prepend("收到的消息：" + _oldD + "<br/>");//收到消息 返回到页面上去
        //遍历窗口是否有该消息
        if (_d.opfun == "online") {
            //showH5Alert("onMQTTMessageArrived", "成功连接服务器！", "message", "bottom")
        } else {
            mqttMessageToFrame(_d);
        }
    }
}

function closeMQTTTimes() {
    MQTTConnectFlag = true;
    clearInterval(MQTTReconnectT);
    MQTTReconnectNum = 0;
    MQTTReconnectT = null;
}

function sendMQTT(msg, qos) {
    let isOk = false;
    let retained = false;
    if (MQTTClent.isConnected) {
        MQTTMessage = new Paho.Message(JSON.stringify(msg));
        MQTTMessage.destinationName = MQTTS2CTopic;//topic;
        MQTTMessage.qos = 2;
        MQTTMessage.retained = false;
        MQTTClent.send(MQTTMessage);
        isOk = true;
    }
    return isOk;
}

// function sendMQTT(msg, topic, qos, retained) {
//     if (MQTTClent.isConnected) {
//         if (qos == null) {
//             qos = 1;
//         }
//         if (retained == null) {
//             retained = false;
//         }
//         MQTTMessage = new Paho.Message(msg);
//         MQTTMessage.destinationName = MQTTS2CTopic;//topic;
//         MQTTMessage.qos = qos;
//         MQTTMessage.retained = retained;
//         MQTTClent.send(MQTTMessage);
//     }
// }


function reConnectMQTT() {
    if (MQTTReconnectNumMax >= MQTTReconnectNum) {
        MQTTReconnectNum++;
        MQTTClent.connect(MQTTOptions);
    }
}

function mqttMessageToFrame(_msg) {
    try {
        $("#div_main")[0].contentWindow.onMQTTMessage(_msg);
    } catch (e) {
    }
}