/**
 * @fileoverview YAS (YOHO! Acquisition System) YOHO!采集系统的前端js的开发包，
 * 用于在网页端采集信息（应用信息，用户信息，用户行为信息，浏览器及其系统信息）。
 */
require('yoho-json2');

//工具库
var util = require('./util');

//cookie处理
var cookies = require('./cookie');

//跨域通信
var cross = require('./cross');

//事件处理
var ev = require('./event');

var config = require('./config');

//sdk 版本
var version = config.version;

var yasPath = config.yaPath;

var yasDomain = config.yasDomain;

//应用信息
var appInfo = {
  h: document.domain, //host
  p: window.location.port, //port
  u: window.location.pathname, //url
  //a:window.location.hash,//anchor
  //c:window.document.charset,//code
  ft: 0, //loadFinishTime
  fst: 0, //firstScreenTime
  // dt:document.title,//document title
  sv: '', // YAS版本
  ab: cookies('ab_5') || '',
  op: 'YB_PAGE_OPEN_L',
  apf: window.location.search.indexOf('app_version=') >= 0 ? 'Y' : 'N'
};

var isApp = navigator.userAgent.indexOf('app_version=') > -1 || window.location.search.indexOf('app_version=') > -1 || !!window.yohoInterface;
var isMobile = /(iPhone|Android|iPad|iPod|iOS)/i.test(navigator.userAgent);
var isWechat = /micromessenger/i.test(navigator.userAgent);
var ismyhbuy = /m\.yohobuy\.com/i.test(document.domain);
var isfeature = /feature\.yoho\.cn/i.test(document.domain);
var downloadBlackLst = ['m.yohobuy.com/brands'];

//获取跟踪ID
var VisitorId = getVisitorId();

//用户信息
var custInfo = {
  ak: '',
  cd: VisitorId.cid, //client_id
  vd: (new Date().getTime() + VisitorId.cid),
  ud: '', //uid
  rf: document.referrer, //referer
  ckf: VisitorId.isNew
};

//TODO:用户操作信息  
var custOpInfo = {
  mp: '', //mouse postion
  ev: '', //event
  st: 0 //scrollTop
};

var flash = util.flashChecker();

//浏览器信息
var browserInfo = {
  sr: window.screen.width + 'x' + window.screen.height, //screenWidthxscreenHeight
  wr: window.screen.availWidth + 'x' + window.screen.availHeight, //windowWidthxwindowHeight
  sd: window.screen.colorDepth, //screenDepth
  ln: window.navigator.language ? window.navigator.language : window.navigator.browserLanguage, //language
  //bv:window.navigator.userAgent,//browserVersion
  sy: window.navigator.platform, //systemInfo
  ce: window.navigator.cookieEnabled, //cookiesEnabled
  fv: flash.f ? flash.v : 0 //flashVersion
};

// 空方法
var nullFun = function() {};

//入口方法 
var _yas = function(initTime, version, tid, uid, geo, selector) {
  window.qs = util.queryString();

  custInfo.ak = tid;
  appInfo.sv = version;
  custInfo.ud = uid ? uid : '';
  custInfo.ts = (new Date()).getTime();

  var channelid = window.qs.yh_channel || util.getChannel();
  if (channelid) {
    appInfo.param = JSON.stringify({C_ID: channelid});
  }

  if (cookies('_yasgeo')) {
    var geoInfo = cookies('_yasgeo').split(',');
    custInfo.la = geoInfo[0];
    custInfo.lo = geoInfo[1];
    cookies('_yasgeo', null, {
      path: "/",
      domain: config.yasDomain,
      expires: 365 * 200
    });
  }

  var beginTime = new Date().getTime();
  var sendFlag = null;
  var isOver3sSend = false;

  appInfo.ft = beginTime - initTime;

  //firstScreenTime
  ev.addEventHandler(window, 'load', function(e) {
    var endTime = new Date().getTime();
    appInfo.fst = endTime - initTime;
    ev.removeEventHandler(window, 'load', arguments.callee);
    window.clearTimeout(sendFlag);
    if (!isOver3sSend) {
      send();
    }
  });

  sendFlag = window.setTimeout(function() {
    appInfo.fst = 0;
    appInfo.fse = '>3s';
    isOver3sSend = true;
    send();
  }, 3000);

  //记录地理信息
  if (geo) {
    util.getGeo(function(lat, lng) {
      if (lat) {
        cookies('_yasgeo', lat + ',' + lng, {
          path: "/",
          domain: yasDomain,
          expires: 365 * 200
        });
      }
    });
  }

  // 设定页面下载条
  setDownloadBar();

  // 页面统计 设定mkt_code
  setMktc();

  // 监控app下载链接，添加union_type
  setUnionType();

  /**
   * 用于统计用户点击的selector元素的序号
   * 记录cookie, 待进入新页面后通过send方法将cookie中的鼠标记录发送并清空.
   *
   */
  if (selector && selector[0]) {
    for (var i = 0, length = selector.length; i < length; i++) {
      selector[i].setAttribute('yoho_index', (i + 1));
    }
  } else {
    /**
     * <a>标签的点击事件,适用于页面跳转的情形
     * 记录cookie, 待进入新页面后通过send方法将cookie中的鼠标记录发送并清空.
     *
     */
    ev.addEventHandler(document, 'click', function(e) {
      e = e || window.event;
      var target = e.target || e.srcElement;
      if (target && (target.nodeName === 'A' || (target.nodeName === 'IMG' && target.parentNode.nodeName === 'A'))) {
        var pos = getMouseEventPosition(e);
        var str = pos.x + ',' + pos.y + ',' + e.type;
        var yoho_index = target.getAttribute('yoho_index') || target.parentNode.getAttribute('yoho_index');
        if (yoho_index) {
          str += ',' + yoho_index;
        }
        cookies('_yasmp', str, {
          path: '/',
          domain: yasDomain,
          expires: 365 * 200
        });
      }
      ix = 0;
    });
  }

  onerror = handleErr;
  var txt = "";

  function handleErr(msg, url, l) {
    txt = "This page contains error! \n\n";
    txt += "Error message is：" + msg + "\n";
    txt += "URL is: " + url + "\n";
    txt += "Line is：" + l + "\n\n";

    var errString = JSON.stringify({
      'er': txt
    });
    cookies('_yaserror', errString, {
      path: '/',
      domain: yasDomain,
      expires: 365 * 200
    });

    return false;
  }

};

function send(callback) {
  var info = util.merge(appInfo, custInfo);
  info = util.merge(info, browserInfo);
  var mktc = getMktc();
  if (mktc) {
    info = util.merge(info, mktc);
  }

  // 鼠标位置
  var mpJson = getMousePosition();
  if (mpJson) {
    info = util.merge(info, mpJson);
    cookies('_yasmp', null, {
      path: "/",
      domain: config.yasDomain,
      expires: 365 * 200
    });
  }

  // 用户自定义信息
  var _custJsonStr = cookies('_yascustjson');
  if (_custJsonStr) {
    var custJson = JSON.parse(_custJsonStr);
    info = util.merge(info, custJson);
    cookies('_yascustjson', null, {
      path: "/",
      domain: config.yasDomain,
      expires: 365 * 200
    });
  }

  // 页面error信息
  var _yasErrorStr = cookies('_yaserror');
  if (_yasErrorStr) {
    var errorJson = JSON.parse(_yasErrorStr);
    info = util.merge(info, errorJson);
    cookies('_yaserror', null, {
      path: "/",
      domain: config.yasDomain,
      expires: 365 * 200
    });
  }

  var param = util.genParam(info);
  callback = callback ? callback : function() {};
  cross.imgSend(param, callback);
  var _yasev = cookies('_yasev');
  if (_yasev) {
    cross.imgSend(_yasev, function() {
      cookies('_yasev', null, {
        path: '/',
        domain: config.yasDomain,
        expires: 365 * 200
      });
    });
  }
}

function getVisitorId() {
  var cid = cookies('_yasvd');
  if (cid) {
    return {
      cid: cid,
      isNew: 'N'
    };
  }

  cid = util.Random() ^ util.hashClientInfo() & 2147483647;
  cookies('_yasvd', cid, {
    path: "/",
    domain: yasDomain,
    expires: 365 * 200
  });
  return {
    cid: cid,
    isNew: 'Y'
  };
}

function getMousePosition() {
  var mp = cookies('_yasmp');
  if (mp) {
    var mpObject = mp.split(',');
    if (mpObject.length === 3) {
      return {
        x: mpObject[0],
        y: mpObject[1],
        et: mpObject[2]
      };
    } else if (mpObject.length === 4) {
      return {
        x: mpObject[0],
        y: mpObject[1],
        et: mpObject[2],
        ix: mpObject[3]
      };
    }

  }
  return null;
}

function getMouseEventPosition(e) {
  var x = 0,
    y = 0;

  if (e.pageX || e.pageY) { //Chrome,Safari,FF
    x = e.pageX;
    y = e.pageY;
  } else if (e.clientX || e.clientY) { //IE
    x = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
    y = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
  }
  x -= window.screen.width / 2;
  y = window.screen.height / 2 - y;
  return {
    x: x,
    y: y
  };
}

function setMktc() {
  var mktc = window.qs.mkt_code || window.qs.union_type || util.getMktcBySeo();
  if (mktc) {
    var options = {
      path: "/",
      domain: yasDomain,
      expires: new Date(Date.now() + (7 * 24 * 60 * 60 * 1000))
    }

    if (isWechat) {
        // 微信中，不管是否已经种入cookie，直接覆盖
        cookies('mkt_code', mktc, options);
    } else if (!cookies('mkt_code')){
        // 如果没有种入mtk_code则种入
        cookies('mkt_code', mktc, options);
    }
  }
}

function getMktc() {
  var mktc = cookies('mkt_code');
  if (mktc) {
    return {
      mktc: mktc
    };
  }
  return null;
}

function setUnionType() {
    var mktc =  window.qs.mkt_code || window.qs.union_type || util.getMktcBySeo();
    var aDom = document.getElementsByTagName("a"); //获取页面所有a标签
    for (var i = 0; i < aDom.length; i++) {
      var href = aDom[i].getAttribute('href') || '';

      if (href.indexOf('union.yoho.cn/union/downapp.html') > -1) {
          if (mktc && href.indexOf('union_type') === -1) {
            href += '?union_type=' + mktc;
            aDom[i].setAttribute('href', href);
          }

          ev.addEventHandler(aDom[i], 'click', function(e) {
            _yas.sendCustomInfo && _yas.sendCustomInfo({
              op: 'YB_DOWNLOAD_C',
              param: JSON.stringify({
                C_ID: window.qs.yh_channel || util.getChannel() || 1,
                TO_URL: e.target.getAttribute('href')
              })
            }, true);
          });
        }
    }
}

function setDownloadBar() {
  var nodownload = document.getElementById('no-download'); // 页面不需要下载条
  var downBar = document.getElementById('top-downloadbar');
  var blackCheck = downloadBlackLst.some(function(url) {
    return new RegExp(url, 'i').test(location.href);
  });

  if (nodownload || window.qs.nodownload || downBar || blackCheck) {
    return;
  }

  if (!isApp && (isMobile || isWechat) && (ismyhbuy || isfeature)) {
    downBar = document.getElementById('float-layer-app');
    if (downBar) {
      // 存在下载条时，删除
      downBar.parentNode.removeChild(downBar);
    }

    if (cookies('_downloadBar')) {
      return;
    }

    // 设定fontsize
    util.setFontSize();

    var css =  require('../css/download.css')
    var downloadDom = document.createElement("div");
    downloadDom.innerHTML = util.getDownloadStr(isWechat);
    document.body.insertBefore(downloadDom, document.body.firstChild);

    // bindevent
    var closeDom = document.getElementById('download-close');
    ev.addEventHandler(closeDom, 'click', function(){
      cookies('_downloadBar', 'close', {
        path: "/",
        domain: config.yasDomain,
        expires: new Date(Date.now() + (60 * 1000))
      });
      cross.downloadSend('//m.yohobuy.com/activitylog.json?close', '');
      downloadDom.style.display = 'none';
    });

    var goDom = document.getElementById('download-go');
    ev.addEventHandler(goDom, 'click', function(){
      cross.downloadSend('//m.yohobuy.com/activitylog.json?download', '');
    });

    var wechatDom = document.getElementById('download-wechat');
    ev.addEventHandler(wechatDom, 'click', function(){
      cross.downloadSend('//m.yohobuy.com/activitylog.json?attenion', '');
    });
  }
}

//超过5次发送自定义信息
var evTimes = 0;

//添加或发送自定义信息
_yas.add = function(trackType, input, action, label, value) {
  if (evTimes > 3) {
    cross.imgSend(cookies('_yasev'), function() {
      cookies('_yasev', null, {
        path: "/",
        domain: config.yasDomain,
        expires: 365 * 200
      });
      evTimes = 0;
      _addEv2Cookies(trackType, input, action, label, value);
    });
  } else {
    _addEv2Cookies(trackType, input, action, label, value);
  }
};

//把自定义事件信息加入cookies
function _addEv2Cookies(trackType, input, action, label, value) {
  var ev = cookies('_yasev');
  if (ev) {
    ev += '&';
  } else {
    ev = '';
  }
  cookies('_yasev', ev + 'vd=' + custInfo.vd + '&t=' + trackType + '&i=' + input + '&l=' + label + '&v=' + value, {
    path: "/",
    domain: yasDomain,
    expires: 365 * 200
  });
  evTimes++;
}

/**
 * 发送用户鼠标事件的位置, 此方法提供给用户调用, 本方法不对参数合法性进行检查, 调用者自己保证。
 * @param e 用户鼠标事件, 必选参数
 * @param flag 用户事件执行后, 页面是否停留当前页, 是可选参数
 *        true表示停留，false表示跳转, 默认值是false
 *        取值是false时, 记录cookie, 待进入新页面后通过send方法将cookie中的事件记录发送并清空。
 */
_yas.sendMouseEvent = function(e, flag) {
  e = e || window.event;
  var pos = getMouseEventPosition(e);

  if (!flag) {
    cookies('_yasmp', pos.x + ',' + pos.y + ',' + e.type, {
      path: '/',
      domain: yasDomain,
      expires: 365 * 200
    });
  } else {
    var mp = {
      x: pos.x,
      y: pos.y,
      et: e.type
    };
    var info = util.merge(appInfo, custInfo);
    info = util.merge(info, browserInfo);
    info = util.merge(info, mp);
    var param = util.genParam(info);
    cross.imgSend(param, function() {});
  }
};

/**
 * 发送用户订制信息, 此方法提供给用户调用, 本方法不对参数合法性进行检查, 调用者自己保证。
 * @param json 用户订制信息, 必选参数,采用json格式
 * @param flag 用户事件执行后, 页面是否停留当前页, 是可选参数, 默认是页面跳转
 *        true表示停留，false表示跳转, 默认值是false
 *        取值是false时, 记录cookie, 待进入新页面后通过send方法将cookie中的事件记录发送并清空。
 * 本方法使用场合：
 *        1. wap中的事件上报
 *        2. app和wap中都需要的事件上报
 */
_yas.sendCustomInfo = function(json, flag, callback) {
  if (window.appBaseLogs && json.appop) {
    // 从app中打开的wap页
    json.op = json.appop;
    return _yas.sendAppLogs(json, true);
  } else {
    // wap页上报数据中去掉 appop
    delete json.appop;
    json.ts = (new Date()).getTime();

    if (!flag) {
      var string = JSON.stringify(json);
      cookies('_yascustjson', string, {
        path: '/',
        domain: yasDomain,
        expires: 365 * 200
      });
    } else {
      var info = util.merge(appInfo, custInfo);
      info = util.merge(info, browserInfo);
      info = util.merge(info, json);
      var mktc = getMktc();
      if (mktc) {
        info = util.merge(info, mktc);
      }
      var param = util.genParam(info);
      cross.imgSend(param, callback);
    }
  }
};

/**
 * 发送用户订制信息, 此方法提供给用户调用, 本方法不对参数合法性进行检查, 调用者自己保证。（app上报数据使用）
 * @param json 用户订制信息, 必选参数,采用json格式
 * @param asyncindx 是否需要同步indx
 *        true表示同步，false表示不需要同步, 默认值是false
 * 本方法使用场合：
 *        1. app中的事件上报
 */
_yas.sendAppLogs = function(json, asyncindx) {
  if (!window.appBaseLogs) {
    return;
  }

  // 数据整合
  var param = JSON.parse(json.param);
  if (param.F_URL) {
    param.F_URL = decodeURIComponent(param.F_URL);
  }
  
  var event = util.merge(window.appBaseLogs.events[0], {
    ts: (new Date()).getTime().toString(),
    indx: ++window.indx,
    op: json.appop,
    param: param
  });
  var logs = util.merge(window.appBaseLogs, {
    events: [event]
  });

  // 上报数据
  cross.appSend("_mlogs=" + escape(JSON.stringify(logs)));
  window._yasloaded = true;

  if (asyncindx) { // 将indx同步到app中
    if (window.isandroidyas) {
      window.prompt(JSON.stringify({
        method: 'set.analyticEventIndex',
        arguments: {
          indx: window.indx
        }
      }));
    } else {
      window.yohoInterface.triggerEvent(nullFun, nullFun, {
        method: 'set.analyticEventIndex',
        arguments: {
          indx: window.indx
        }
      });
    }
  }
}

function appPageOpen(data, actionUrl) {
  if (!data.av) {
    return;
  }
  window.indx = data.indx;
  window.originUrl = data.origin || location.href;
  window.appBaseLogs = {
    device: {
      ak: data.ak,
      udid: data.udid,
    },
    status: [{
      av: data.av,
      udid: data.udid,
      sid: data.sid,
    }],
    events: [{
      uid: data.uid,
      sid: data.sid
    }]
  }

  // 上报页面打开事件
  if (window.originUrl && window.qs) {
    _yas.sendAppLogs({
      appop: 'YB_H5_PAGE_OPEN_L',
      param: JSON.stringify({
        C_ID: window.qs.yh_channel || util.getChannel() || 1,
        PAGE_URL: window.originUrl,
        PAGE_NAME: decodeURI(window.qs.title || document.title),
        ACTION_URL: actionUrl
      })
    }, false);  
  }
}

if (navigator.userAgent.indexOf('YohoBuy-android-yas') > -1) {
  // 针对android商品详情页做特殊处理
  window.isandroidyas = true;
  var data = window.prompt(JSON.stringify({
    method: 'get.analyticAppData'
  }));
  
  appPageOpen(JSON.parse(data || '{}'));
} else {
  // 监听app加载的deviceready事件
  ev.addEventHandler(document, 'deviceready', function(e) {
    window._yasloaded = false;

    var actionUrl = [];
    var aDom = document.getElementsByTagName("a"); //获取页面所有a标签

    for (var i = 0; i < aDom.length; i++) {
      var href = aDom[i].getAttribute('href');
      if (href && !/^#.*$/.test(href) && !/^javascript.*$/i.test(href)) {
        actionUrl.push(href);
      }

      ev.addEventHandler(aDom[i], 'click', function(e) {
        if (!window.originUrl) {
          return;
        }

        var target = e.currentTarget,
          furl = target.getAttribute('href');

        // 上报曝光事件
        _yas.sendAppLogs({
          appop: 'YB_H5_PAGE_FLR_C',
          param: JSON.stringify({
            C_ID: window.qs.yh_channel || util.getChannel() || 1,
            PAGE_URL: window.originUrl,
            PAGE_NAME: decodeURI(window.qs.title || document.title),
            F_URL: furl
          })
        }, true);

        if ('feature.yoho.cn' === document.domain) { // feature.yoho.cn场合
          var operid = target.getAttribute('operid');
          if (operid) {
            var param = target.getAttribute('param');

            param = JSON.parse(param);
            param.C_ID = window.qs.yh_channel;
            param.F_URL = furl;

            // 上报点击事件
            _yas.sendAppLogs({
              appop: operid,
              param: JSON.stringify(param)
            }, true);
          }
        }
      });
    }

    window.yohoInterface.triggerEvent(function(data) {
      appPageOpen(data, actionUrl);
    }, nullFun, {
      method: 'get.analyticAppData'
    });

    // 同步indx（需延迟处理）
    var timer = setInterval(function() {
      if (window._yasloaded) {
        clearInterval(timer);
        window.yohoInterface.triggerEvent(nullFun, nullFun, {
          method: 'set.analyticEventIndex',
          arguments: {
            indx: window.indx
          }
        });
      }
    }, 500);
  });
}

module.exports = _yas;