var apexwebsocket ={
    ws:null,
    timeoutid:null,
    timeout: 15000, //心跳发送间隔时间
    severtimeout: 20000,  //服务端超时时间
    timeoutobj: null,
    servertimeoutobj: null,
    "ws_core" :"market",//行情类型
    /**
     * 客户端是否支持websocket
     * @returns {boolean}
     */
    issupport:function(){
        var b = false;
        if ('websocket' in window) {
            b = true;
        } else if ('mozwebsocket' in window) {
            b = true;
        }
        return b;
    },
    /**
     * 获取ws链接地址
     * @returns {string}
     */
    gettargeturl:function (topic) {

        if(window["websocket_host"] != undefined){
            return window["websocket_host"] + "/websocket/bidinfoserver/" + apexwebsocket["ws_core"] + "/" + topic;
        }
        var target = window["p_basepath"] + "/websocket/bidinfoserver/" + apexwebsocket["ws_core"] + "/" + topic;

        //ws url上增加引用地址pathname，有助于日志分析，问题排查
        if(target.indexof("?") != -1){
            target = target + "&ref="+location.pathname+"&token="+encodeuricomponent(window["token"]);
        }else{
            target = target + "?ref="+location.pathname+"&token="+encodeuricomponent(window["token"]);
        }

        if (window.location.protocol == 'http:') {
            return 'ws://' + window.location.host + target;
        } else {
            return 'wss://' + window.location.host + target;
        }
    },
    connect : function (topic, messagecallback, closecallback){
        if(apexwebsocket.timeoutid != null){
            base.logger.info('websocket 链接...cleartimeout');
            cleartimeout(apexwebsocket.timeoutid);
        }
        base.logger.info('websocket 链接延迟创建...');
        //fix:通过timeout方式解决页面重新加载导致的重连问题？ todo
        apexwebsocket.timeoutid = settimeout(function () {
            apexwebsocket.connecttimeout(topic, messagecallback, closecallback);
        },3000);
    },

    connecttimeout : function (topic, messagecallback, closecallback) {
        var _this = this;
        var target = apexwebsocket.gettargeturl(topic);
        if ('websocket' in window) {
            apexwebsocket.ws = new websocket(target);
        } else if ('mozwebsocket' in window) {
            apexwebsocket.ws = new mozwebsocket(target);
        } else {
            alert('您的浏览器不支持websocket.');
            return;
        }
        apexwebsocket.ws.onopen = function () {
            _this.heartcheck();
            base.logger.info('websocket 链接已创建.');
        };
        apexwebsocket.ws.onmessage = function (event) {
            //log('received: ' + event.data);
            if (event.data === 'heartback'){
                //心跳返回消息
                _this.heartcheck();
                return;
            }
            if(typeof messagecallback == 'function'){
                try{
                    var json = $.parsejson(event.data);
                    if(json.success){
                        messagecallback(json.object);
                    }
                }catch (e){
                    base.logger.error(e);
                }
            }
        };
        apexwebsocket.ws.onclose = function (event) {
            base.logger.info('websocket 链接关闭, code: ' + event.code + (event.reason == "" ? "" : ", reason: " + event.reason));
            //if(!!!apexwebsocket.onclose){
            //    apexwebsocket.onclose = true;
            //    base.logger.info("websocket 链接关闭,不进行回调操作。");
            //    return false;//手动关闭
            //}
            if(typeof messagecallback == 'function'){
                base.logger.info('websocket 进行回调 ');
                settimeout(function () {
                    closecallback(event);
                },500);
            }

        };
    },
    isclosed:function(){
        /**
         * readystate 说明：
         *     0        connecting        连接尚未建立
         *     1        open            websocket的链接已经建立
         *     2        closing            连接正在关闭
         *     3        closed            连接已经关闭或不可用
         */
        return apexwebsocket.ws == null || apexwebsocket.ws.readystate == 3;
    },
    close:function(triggeronclose){
        apexwebsocket.onclose = triggeronclose;
        if(!apexwebsocket.isclosed()){
            return apexwebsocket.ws.close();
        }
    },
    /**
     * 心跳检查
     * 间隔一定时间发送心跳包
     * 在超时时间内无响应 断开主动重连
     */
    heartcheck: function(){
        var _this = this;
        this.timeoutobj && cleartimeout(this.timeoutobj); //timeoutobj 不为空清除timeoutobj定时器
        this.servertimeoutobj && cleartimeout(this.servertimeoutobj); //servertimeoutobj 不为空 清除servertimeoutobj定时器
        this.timeoutobj = settimeout(function(){
            //这里发送一个心跳，后端收到后，返回一个心跳消息，
            //onmessage拿到返回的心跳就说明连接正常
            _this.ws.send("heartbeat"); // 心跳包
            base.logger.info('发送心跳包');
            //计算答复的超时时间
            _this.servertimeoutobj = settimeout(function() {
                base.logger.info('后端无响应 断开重连');
                _this.ws.close();
            }, _this.severtimeout);
        }, this.timeout)
    },
}