/**
 * 
 * @module app.utils.browser-detect
 */
/**
 * @see http://www.quirksmode.org/js/detect.html
 * Warning: The author of this module recommends to avoid using it (see previous link).
 * Warning: When run on Internet Explorer 11, window.BrowserDetect.browser returns "Mozilla"
 * 
 * This is now ONLY used to show the "Your browser is too old" banner
 * @type {Object}
 */
var BrowserDetect = {
  init: function() {
    this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
    this.version = this.searchVersion(navigator.userAgent)
        || this.searchVersion(navigator.appVersion)
        || "an unknown version";
    this.OS = this.searchString(this.dataOS) || "an unknown OS";
  },
  searchString: function(data) {
    for (var i = 0; i < data.length; i++) {
      var dataString = data[i].string;
      var dataProp = data[i].prop;
      this.versionSearchString = data[i].versionSearch || data[i].identity;
      if (dataString) {
        if (dataString.indexOf(data[i].subString) != -1)
            return data[i].identity;
      }
      else if (dataProp)
          return data[i].identity;
    }
  },
  searchVersion: function(dataString) {
    var index = dataString.indexOf(this.versionSearchString);
    if (index == -1) return;
    return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));
  },
  dataBrowser: [
        {
          string: navigator.userAgent,
          subString: "Chrome",
          identity: "Chrome"
        },
        {   string: navigator.userAgent,
            subString: "OmniWeb",
            versionSearch: "OmniWeb/",
            identity: "OmniWeb"
        },
        {
          string: navigator.vendor,
          subString: "Apple",
          identity: "Safari",
          versionSearch: "Version"
        },
        {
          prop: window.opera,
          identity: "Opera",
          versionSearch: "Version"
        },
        {
          string: navigator.vendor,
          subString: "iCab",
          identity: "iCab"
        },
        {
          string: navigator.vendor,
          subString: "KDE",
          identity: "Konqueror"
        },
        {
          string: navigator.userAgent,
          subString: "Firefox",
          identity: "Firefox"
        },
        {
          string: navigator.vendor,
          subString: "Camino",
          identity: "Camino"
        },
        {       // for newer Netscapes (6+)
          string: navigator.userAgent,
          subString: "Netscape",
          identity: "Netscape"
        },
        {
          string: navigator.userAgent,
          subString: "MSIE",
          identity: "Explorer",
          versionSearch: "MSIE"
        },
        {
          string: navigator.userAgent,
          subString: "Gecko",
          identity: "Mozilla",
          versionSearch: "rv"
        },
        {       // for older Netscapes (4-)
          string: navigator.userAgent,
          subString: "Mozilla",
          identity: "Netscape",
          versionSearch: "Mozilla"
        }
    ],
  dataOS: [
        {
          string: navigator.platform,
          subString: "Win",
          identity: "Windows"
        },
        {
          string: navigator.platform,
          subString: "Mac",
          identity: "Mac"
        },
        {
          string: navigator.userAgent,
          subString: "iPhone",
          identity: "iPhone/iPod"
        },
        {
          string: navigator.platform,
          subString: "Linux",
          identity: "Linux"
        }
    ]

};
BrowserDetect.init();
