/**
 * browser.js
 * 
 * Pioneer browser class
 *
 */
var PioneerBrowser = Class.create();

PioneerBrowser.prototype = {
	/**
	 * Parameters
	 */
	browser: null,
	version: null,
	OS: null,
	versionSearchString: null,

	/**
	 * Methods
	 *
	 * Class constructor
	 *
	 * @return PioneerBrowser
	 */
	initialize: function () {
		this.browser = this.searchString(this.dataBrowser) || 'unknown';
		this.version = this.searchVersion(navigator.userAgent) || this.searchVersion(navigator.appVersion) || 'unknown';
		this.OS = this.searchString(this.dataOS) || 'unknown';
	},

	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;
			}
		}
		return false;
	},

	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);

		if (index != -1) {
			var version = parseFloat(dataString.substring(index+this.versionSearchString.length+1));
			return version;
		}
		return false;
	},
	
	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"
		},
		{
			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"
		},
		{
			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"
		},
		{
			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"
		}
	]
};