var AD_TRACELOG_HTTP_ROOT = "http://tj.alisoft.com/tj.html";
//新的日志监测根url
var AD_TRACELOG_HTTP_ROOT_="http://tj.alisoft.com";
/**
 * 保存一个切换对象
 * @param  htmlObjId html的id
 * @param  adId    广告位id
 * @param  stayMs  停留的毫秒数
 * follow by shj 
 * @param  openUrl 图片链接 
 * @param  imgUrl  图片url 
 **/
function PollObj( htmlObjId, adId,imgUrl,openUrl, stayMs) {
    this.htmlObjId = htmlObjId;
    this.adId = adId;
    this.stayMs = stayMs;
    
    this.imgUrl = imgUrl;
    this.openUrl = openUrl;
	
}

/**
 * 切换处理对象
 * @param  newArrPollObj html拖拉对象
 * @param  currentIndex  当前显示的索引id
 * @param  swapImgId  用来做切换处理的图片id, 如果不需要swap的日志的时候，则传个空过来
 **/
function Poll( newArrPollObj, currentIndex, swapImgId, swapMethod) {
    // 里面存储div对象列表
    this.arrPollObj = newArrPollObj;
	
    // 当前显示的第几个div
    this.currentIndex = currentIndex;
    // 轮询的时间间隔
	//this.replaceSencond = 30000;
	this.replaceSencond = 10000;

    // 供我使用的切换的图片的id
    this.swapImgId = swapImgId;
    // 跳转的方法
    this.swapMethod = swapMethod;

    var currentCount = -1;
    var arrPollIndex = [];
    for(var i=0;i<this.arrPollObj.length;i++){
    	arrPollIndex.push(i);
    }
   
	this.counter=0;
    // 对象切换显示
    this.swap = function() {
		
	  for(var x=0;x<this.arrPollObj.length;x++){ 
		  var b= this.arrPollObj[x].htmlObjId;
		  
	  }
		
        var obj ;
        // 把上一个对象设置成为不显示
        if ( this.currentIndex != -1 ) {
            obj = document.getElementById(this.arrPollObj[this.currentIndex].htmlObjId);	
            this.display( obj, false );
        } else {
            obj = document.getElementById(this.arrPollObj[0].htmlObjId);
            this.display( obj, false );
        }
        //设置当前要显示的数据
        this.setCurrentIndex();
        var pollObj = this.getCurrentPollObj();
        obj = document.getElementById(pollObj.htmlObjId);
		///alert("show:"+obj.id);
        this.display( obj, true );
        if ( swapImgId ) {
            if ( isNeedSwapAd() ) {
             //traceAdLogByType(this.swapImgId, 0, pollObj.adId);
            }
        }
        // 如果有回调的替换方法
        if( this.swapMethod ) {
            // 如果有拖拉对象的停留时间
            if ( pollObj.stayMs ) {
                  //alert("this.swapMethod=" + this.swapMethod);
                  //alert("second=" + pollObj.stayMs);
				  var stayMsValue=parseInt(pollObj.stayMs)*1000;
                setTimeout( this.swapMethod + "()", stayMsValue );
            }
        }
    };
    /**
	 * 通过初始化right.vm页面的富媒体全局变量，进行富媒体切换.
	 *
	 */
    this.richMediaSwap = function(){
    	this.getRandomIndex();
    	var currentPoll = this.getCurrentPollObj();
    	window.richImgUrl = currentPoll.imgUrl;
        window.richAdUrl = currentPoll.openUrl;
        window.richAdId = currentPoll.adId;
		
    };
    
    this.getCurrentPollObj = function() {
        return this.arrPollObj[this.currentIndex];
    };
    
    // 取得完全随即的下一个广告
    this.getRandomIndex = function() {
		var random=Math.random();
		random = random * this.arrPollObj.length;
		var ret = Math.floor(random);
		if ( ret == this.arrPollObj.length) {
			ret = this.arrPollObj.length - 1;
		}
		this.currentIndex = ret;
	};
    
    // 取得当前要显示的对象
    this.setCurrentIndex = function() {
    	if(currentCount>=arrPollIndex.length||currentCount<0){
    		var lastDis;
    		//保证在上一轮最后显示的不会在下一轮已开始就显示，第一轮不作此处理
    		if(currentCount!=-1){
    			lastDis = arrPollIndex[arrPollIndex.length-1];
    		}
    		arrPollIndex.sort(function(x,y){
        		return Math.random()>.5?-1:1;
        	});
    		if(currentCount!=-1){
    			if(lastDis == arrPollIndex[0]){
        			arrPollIndex[0] = arrPollIndex[arrPollIndex.length-1];
        			arrPollIndex[arrPollIndex.length-1] = lastDis;
        		}
    		}
    		currentCount=0;
    	}
		this.currentIndex = arrPollIndex[currentCount];
		currentCount++;
	};

    // 显示某个对象
    this.display = function( obj, needDisplay ) {
        if ( needDisplay ) {
            obj.style.display = "";
        } else {
            obj.style.display = "none";
        }
    };
}
/**
 * 广告日志参数实体，用于保存点击广告后需要发送到日志服务器的url参数
 * @param loginid 登陆id
 * @param site    当前站点
**/
function LogEntity(loginid,site){
	this.loginid=loginid;//登陆用户id，不包含站点前缀
	this.site=site;       //当前站点
	this.toString=function(){
	   return (this.loginid+" "+this.site);
	
	}
}
var logVariable;//全局变量
/**
 * 初始化日志实体.
 * @ param param1
 * @ param param2
 */
function initLogEntity(param1,param2){
  logVariable=new LogEntity(param1,param2);
}
 
/**
 * 监测广告位相关广告点击情况。
 * @param  imgId 图片id
 * @param  type  记录类型： 0 广告切换, 1 广告点击；根据指定的type来生成记录日志。
 * @param  adId  广告id
 * @param  adzone广告位
 **/
function traceAdLogByTypeNew(imgId, type, adId, adzone) {
    var r=Math.random();
    var linkUrl = AD_TRACELOG_HTTP_ROOT_;
	//进行参数检查
	var errorStr="";
	var isError=false;
	if(logVariable){
		errorStr="以下参数不存在:<br>"+logVariable.toString();
	    var loginid=logVariable.loginid;
		var site=logVariable.site;
		var lostParams=new Array()
		if(!loginid){
           lostParams.push("loginid ");
           isError=true;
		}
		else if (!site)
		{
		   lostParams.push("site");
		   isError=true;
		}
        errorStr.concat(lostParams.toString());
	}
	if(!logVariable){
	   //alert("logVariable 未初始化")应该提示出来.
	   
	}
	if(isError)
	{
	    throw (new Error(errorStr.toString()));
	}
	 
    switch ( type ) {
        case 0:
		    linkUrl= linkUrl+"?tracelog=show&adid="+adId;
			linkUrl=linkUrl.concat("&loginid="+logVariable.loginid)
			         .concat("&site="+logVariable.site)
			         .concat("&adzone="+adzone);
            break;
        case 1:
		    linkUrl= linkUrl+"?tracelog=click&adid="+adId;
			linkUrl=linkUrl.concat("&loginid="+logVariable.loginid)
			        .concat("&site="+logVariable.site)
			        .concat("&adzone="+adzone);
            break;
		case 2:
			linkUrl= linkUrl+"?tracelog=bannerclick&adid="+adId;
			linkUrl=linkUrl.concat("&loginid="+logVariable.loginid)
			        .concat("&site="+logVariable.site)
			        .concat("&adzone="+adzone);
            break;
    }
	
    // 图片对象
    var obj = document.getElementById(imgId);
    if (obj) {
        obj.src = linkUrl;
    }
}

/**
 * 根据指定的type来生成记录日志
 * @param  imgId 图片id
 * @param  type  记录类型： 0 广告切换, 1 广告点击
 * @param  adId  广告id
 **/
function traceAdLogByType(imgId, type, adId) {
    var r=Math.random();
    var linkUrl = AD_TRACELOG_HTTP_ROOT;
    switch ( type ) {
        case 0:
            linkUrl = linkUrl + "?tracelog=show_"+adId+"&signmode=none&rand="+r;  
            break;
        case 1:
            linkUrl = linkUrl + "?tracelog=click_"+adId+"&signmode=none&rand="+r; 
            break;
    }
    // 图片对象
    var obj = document.getElementById(imgId);
    if (obj) {
        obj.src = linkUrl;
    }
}
/**
 * 记录日志
 * @param  imgId 图片id
 * @param  tracelog  日志的参数
 **/
function traceAdLog(imgId, tracelog) {
    var r=Math.random();
    var linkUrl = AD_TRACELOG_HTTP_ROOT;
    linkUrl = linkUrl + "?" + tracelog;
    // 图片对象
    var obj = document.getElementById(imgId);
    if (obj) {
        obj.src = linkUrl;
    }
}
 
var needSwapAd = false;
function setActive() {
  //  alert("active");
    needSwapAd = true;
}
function unsetActive() {
//		alert("unactive");
    needSwapAd = false;
}
function isNeedSwapAd() {
    return needSwapAd;
}