// ==============================================================================================================
// ===                                     P U B L I C   F U N C T I O N S                                    ===
// ==============================================================================================================

// Show the compatibility dialog...

function compatibility_test()
{
	// 1: add some code...

	$('body').append("<div id='compatibility'>" +
										 "<div id='comp-background'>" +
									   "</div>" +
										 "<table id='comp-table' align='center' valign='middle'><tr><td>" +
										 	 "<div id='comp-dialog'>" +
										 	   "<h1>Dyyno Compatibility Test</h1>" +
												 "<ul>" +
												 	 "<li id='comp-os'>System has to be Windows XP or better or Mac OS 10.5 or better</li>" +
												 	 "<li id='comp-resolution'>Screen resolution hast to be 640 × 480 or better</li>" +
												 	 "<li id='comp-depth'>Screen depth has to be 24 bit or better</li>" +
												 	 "<li id='comp-flash'>Flash version 10+ or better has to be installed</li>" +
												 	 "<li id='comp-cookie'>Cookies have to be enabled</li>" +
												 "</ul>" +
												 "<div id='comp-failed'>" +
												 	 "Your system failed in the Dyyno Compatibility Test. Please make sure that all the above requirements are met and repeat the test." +
												 "</div>" +
												 "<div id='comp-passed'>" +
												 	 "Your system passed the Dyyno Compatibility Test! To fully check receiver compatibility, <a href='http://mychannel.dyyno.net'>view the Dyyno Test Stream</a>." +
												 "</div>" +
												 "<div id='comp-close'>" +
												 	 "<a href='#'>Close</a>" +
												 "</div>" +
											 "</div>" +
									   "</td></tr></table>" +
							  	 "</div>");

	// 2: check settings...
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"
		},
		{
			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();

	var passed = true;

		// 2.1: check OS...
		
		var is_right_os = false;

		if(RegExp('Win').test(navigator.platform))
		{
			var result = navigator.userAgent.match(RegExp('Windows\\sNT\\s+(\\d+\\.\\d+)'));
			if(typeof result != 'undefined')
			{
				var version = parseFloat(result[1]);
				
				if((version >= 5.1) && (version <= 6.0))
				{
					is_right_os = true;
				}
			}
		}
		
		if(BrowserDetect.OS == "Mac"){
			is_right_os = true;
		}

		if(is_right_os)
		{
			$('#comp-dialog #comp-os').addClass('comp-pass');
		}
		else
		{
			$('#comp-dialog #comp-os').addClass('comp-fail');
			passed = false;
		}

		// 2.2: check browser...

		var is_right_browser = false;

		if(RegExp('Firefox').test(navigator.userAgent))
		{
			// 2.2.1: firefox...

			var result = navigator.userAgent.match(RegExp('Firefox(?:\\s|\\/)(\\d+(?:\\.\\d+)+(?:(?:a|b)\\d*)?)'));
			if(typeof result != 'undefined')
			{
				var version = parseFloat(result[1]);
				
				if(version >= 2.0)
				{
					is_right_browser = true;
				}
			}
		}
		else if(RegExp('MSIE').test(navigator.userAgent))
		{
			// 2.2.2: internet explorer...

			var result = navigator.userAgent.match(RegExp('MSIE (\\d+(?:\\.\\d+)+(?:b\\d*)?)'));
			if(typeof result != 'undefined')
			{
				var version = parseFloat(result[1]);
				if(version >= 6.0)
				{
					is_right_browser = true;
				}
			}
		}

		if(is_right_browser)
		{
			$('#comp-dialog #comp-browser').addClass('comp-pass');
		}
		else
		{
			$('#comp-dialog #comp-browser').addClass('comp-fail');
			passed = false;
		}

		// 2.3: screen resolution...

		if((screen.width >= 640) && (screen.height >= 480))
		{
			$('#comp-dialog #comp-resolution').addClass('comp-pass');
		}
		else
		{
			$('#comp-dialog #comp-resolution').addClass('comp-fail');
			passed = false;
		}

		// 2.4: screen depth...

		if(screen.colorDepth >= 24)
		{
			$('#comp-dialog #comp-depth').addClass('comp-pass');
		}
		else
		{
			$('#comp-dialog #comp-depth').addClass('comp-fail');
			passed = false;
		}

		// 2.5: flash version...

		if(DetectFlashVer(10, 0, 0))
		{
			$('#comp-dialog #comp-flash').addClass('comp-pass');
		}
		else
		{
			$('#comp-dialog #comp-flash').addClass('comp-fail');
			passed = false;
		}
		
		// 2.6: cookies enabled?

		var are_cookies_enabled = (navigator.cookieEnabled) ? true : false;
		
		if(typeof navigator.cookieEnabled == "undefined" && !are_cookies_enabled)
		{
			// 2: fallback for really old browsers...
		
			document.cookie = "testcookie";
			are_cookies_enabled = (document.cookie.indexOf("testcookie") != -1) ? true : false;
		}

		if(are_cookies_enabled)
		{
			$('#comp-dialog #comp-cookie').addClass('comp-pass');
		}
		else
		{
			$('#comp-dialog #comp-cookie').addClass('comp-fail');
			passed = false;
		}
		
	// 3: show appropriate final message...
	
	if(passed)
	{
		$('#comp-dialog #comp-passed').show();
	}
	else
	{
		$('#comp-dialog #comp-failed').show();
	}
	
	// 4: add code to close window...
	
	$('#comp-dialog #comp-close a').click(function()
	{
		$('#compatibility').remove();
	});
}