var ACS = {};

ACS.User = function(infoData) {
try{
    var acsUser = this;
    if (infoData) {
        var datastring = infoData.substring(infoData.indexOf("+")+1, infoData.length);
		datastring = decodeURIComponent(datastring);
        this.data = jQuery.parseJSON(Base64.decode(datastring));//Ext.util.JSON.decode(Base64.decode(datastring))
    } else {
		
        $.ajax({
            url:'/acs/login.json',
            cache:true,
            async:false,
            success:function(html){
                acsUser.data = html;
    }
        });
}
}catch(e){
//alert(e);
}

};

ACS.User.prototype = function() {

    return {

        /**
         * @property {Object} data
         * The user data.
         * @private
         */
        data: null,


		isLoggedIn : function(){
            if(this.data == null){
                return false;
            }else{
                return (this.getFirstName() != "" && this.getFirstName() != "null");
            }
        },

        isInstitution : function(){
            return this.data.institution;
        },
        isRemembered : function(){
            return this.data.rememberme;
        },
        
        /**
         * Returns the name of the user.
         * @return {String} The user name
         */
        getUserName: function() {
            if (this.data.username)
                return this.data.username;
            return "";
        },

        getFullName: function(){
            if (this.data.fname && this.data.lname){
                return this.data.fname + ' ' + this.data.lname;
            } else if(this.data.fname) {
                return this.data.fname;
            }
            return "";
        },

        getFirstName: function(){
            if (this.data.fname)
                return this.data.fname.replace(/</g, "&lt;").replace(/>/g, "&gt;");
            return "";
        },
        
        getEmail : function(){
            if (this.data.email)
                return this.data.email;
            return "";

        },
        /**
         * Returns the home of the user.
         * @return {String} The user home
         */
        getHome: function() {
            return this.data.home;
        },


        hasAccess:function(){
            return false;   
        }



    };
}();

ACS.User.getCurrentUser = function(data) {
    if (!window.top.ACS_User) {
        window.top.ACS_User = new ACS.User(data);
    }
    return window.top.ACS_User;
};

ACS.User.getUserName = function() {
    return ACS.User.getCurrentUser().getUserName();
};

ACS.User.getFullName = function() {
    return ACS.User.getCurrentUser().getFullName();
};
ACS.User.getFirstName = function() {
    return ACS.User.getCurrentUser().getFirstName();
};
ACS.User.getEmail = function() {
    return ACS.User.getCurrentUser().getEmail();
};
ACS.User.isLoggedIn = function() {
    return ACS.User.getCurrentUser().isLoggedIn();
};
ACS.User.isInstitution = function() {
    return ACS.User.getCurrentUser().isInstitution();
};
ACS.User.isRemembered = function() {
    return ACS.User.getCurrentUser().isRemembered();
};


/**
*
*  Base64 encode / decode
*  http://www.webtoolkit.info/
*
**/
 
var Base64 = {
 
    // private property
    _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
 
    // public method for encoding
    encode : function (input) {
        var output = "";
        var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
        var i = 0;
 
        input = Base64._utf8_encode(input);
 
        while (i < input.length) {
 
            chr1 = input.charCodeAt(i++);
            chr2 = input.charCodeAt(i++);
            chr3 = input.charCodeAt(i++);
 
            enc1 = chr1 >> 2;
            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
            enc4 = chr3 & 63;
 
            if (isNaN(chr2)) {
                enc3 = enc4 = 64;
            } else if (isNaN(chr3)) {
                enc4 = 64;
            }
 
            output = output +
            this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
            this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
 
        }
 
        return output;
    },
 
    // public method for decoding
    decode : function (input) {
        var output = "";
        var chr1, chr2, chr3;
        var enc1, enc2, enc3, enc4;
        var i = 0;
 
        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 
        while (i < input.length) {
 
            enc1 = this._keyStr.indexOf(input.charAt(i++));
            enc2 = this._keyStr.indexOf(input.charAt(i++));
            enc3 = this._keyStr.indexOf(input.charAt(i++));
            enc4 = this._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);
            }
 
        }
 
        output = Base64._utf8_decode(output);
 
        return output;
 
    },
 
    // private method for UTF-8 encoding
    _utf8_encode : function (string) {
        string = string.replace(/\r\n/g,"\n");
        var utftext = "";
 
        for (var n = 0; n < string.length; n++) {
 
            var c = string.charCodeAt(n);
 
            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }
 
        }
 
        return utftext;
    },
 
    // private method for UTF-8 decoding
    _utf8_decode : function (utftext) {
        var string = "";
        var i = 0;
        var c = c1 = c2 = 0;
 
        while ( i < utftext.length ) {
 
            c = utftext.charCodeAt(i);
 
            if (c < 128) {
                string += String.fromCharCode(c);
                i++;
            }
            else if((c > 191) && (c < 224)) {
                c2 = utftext.charCodeAt(i+1);
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                i += 2;
            }
            else {
                c2 = utftext.charCodeAt(i+1);
                c3 = utftext.charCodeAt(i+2);
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                i += 3;
            }
 
        }
 
        return string;
    }
 
};