/**
 * Cookie utilities
 */

var Cookie = {};

Cookie.write = function(name, value, hours){
    var expire = '';
    if(hours){
        expire = new Date((new Date()).getTime() + hours * 3600000);
        expire = '; expires=' + expire.toGMTString();
    }
    document.cookie = name + '=' + escape(value) + expire;
};

Cookie.read = function(name){
    var cookieValue = '',
        search = name + '=';
    if(document.cookie.length > 0){
        var cookie = document.cookie,
            offset = cookie.indexOf(search);
        if(offset !== -1){
            offset += search.length;
            var end = cookie.indexOf(';', offset);
            if(end === -1){
                end = cookie.length;
            }
            cookieValue = unescape(cookie.substring(offset, end));
        }
    }
    return cookieValue;
};

Cookie.remove = function(name){
    this.write(name,'',-1);
};

Cookie.valueToArray = function(name, separator){
    if(!separator){
        separator = ',';
    }
    //reads the cookie
    var val = this.read(name);
    //creates an array with filters' values
    var arr = val.split(separator);
    return arr;
};

Cookie.getValueByIndex = function(name, index, separator){
    if(!separator){
        separator = ',';
    }
    //reads the cookie
    var val = this.valueToArray(name, separator);
    return val[index];
};

exports.Cookie = Cookie;