// ruisenor.js
// James Rees 2014
//3|2014-07-05|10.4|100|0|2.4532|1|1|5|20|2|801|2013-06-01

(function(){
	var variableNames = [
		'nd', //#dons
		'ld', //last donation
		'dd', //dd?
		's', //score
		'jd', //join date
		'c', //const --> could then poll CBY to find locals?
		'f', //fb
		't',
		'k', // klout
		'fc', //facebook count
		'tc',
		'a', //??
		'ad', //average
		'hd' //highest		
	];
	
	//if ted string is available, write new cookies
	if (getParameterByName('ted') != ''){
		var ted = decode64(getParameterByName('ted')).split('|');
		for (var i=0;i<variableNames.length;i++){setCookie('ted_'+variableNames[i],ted[i],180);}
	}
	
})();

function decode64(input) {

	var keyStr = "ABCDEFGHIJKLMNOP" +
               "QRSTUVWXYZabcdef" +
               "ghijklmnopqrstuv" +
               "wxyz0123456789+/" +
               "=";


     var output = "";
     var chr1, chr2, chr3 = "";
     var enc1, enc2, enc3, enc4 = "";
     var i = 0;
 
     // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
     var base64test = /[^A-Za-z0-9\+\/\=]/g;
     if (base64test.exec(input)) {
        alert("There were invalid base64 characters in the input text.\n" +
             "Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" +
              "Expect errors in decoding.");
     }
     input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 
     do {
        enc1 = keyStr.indexOf(input.charAt(i++));
        enc2 = keyStr.indexOf(input.charAt(i++));
        enc3 = keyStr.indexOf(input.charAt(i++));
        enc4 = keyStr.indexOf(input.charAt(i++));
 
        chr1 = (enc1 << 2) | (enc2 >> 4);

        chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
        chr3 = ((enc3 & 3) << 6) | enc4;

        output = output + String.fromCharCode(chr1);
 
        if (enc3 != 64) {
           output = output + String.fromCharCode(chr2);
        }

        if (enc4 != 64) {
           output = output + String.fromCharCode(chr3);
        }
        chr1 = chr2 = chr3 = "";
        enc1 = enc2 = enc3 = enc4 = "";
     } while (i < input.length);
     return unescape(output);
  }


function setCookie(cname, cvalue, exdays) {
    var d = new Date();
    d.setTime(d.getTime() + (exdays*24*60*60*1000));
    var expires = "expires="+d.toGMTString();
    document.cookie = cname + "=" + cvalue + ";path=/;domain=38degrees.org.uk; " + expires;
}

function getCookie(cname) {
    var name = cname + "=";
    var ca = document.cookie.split(';');
    for(var i=0; i<ca.length; i++) {
        var c = ca[i].trim();
        if (c.indexOf(name) == 0) return c.substring(name.length,c.length);
    }
    return "";
}

function getParameterByName(name) {
    name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
    var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
        results = regex.exec(location.search);
    return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}