// manages user preferences through cookies

// globals used: gConf

// YUI3 used: cookie

Preferences = function() {

	this.prefs = {} ;  

}

Preferences.prototype = {

	init : function() {

		this._read() ;

	},

	//read user preferences from cookie

	_read : function() {

		for (var key1 in gConf['defaultPrefs']) {

			this.prefs[key1] = {} ;

			for (var key2 in gConf['defaultPrefs'][key1]) {

				var val = null ;

				if (key1 == 'user' && (key2 == 'name' || key2 == 'email'))

					val = CY.Cookie.get("user_" + key2);

				else 

					val = CY.Cookie.getSub(key1, key2);

				this.prefs[key1][key2] = (val == null) ? gConf['defaultPrefs'][key1][key2] : val ;

			}

		}

	},

	// to be used only on values in gDefaultPrefs

	persist : function(key1, key2, val) {

		var cookieOptions = {path:"/", expires:(new Date()).setFullYear(2100,0,1)} ;

		if (key1 == 'user' && (key2 == 'name' || key2 == 'email')) // special case want to get that from cookie set up by python code

			CY.Cookie.set("user_" + key2, val, cookieOptions);

		else 

			CY.Cookie.setSub(key1, key2, val, cookieOptions);

		this.prefs[key1][key2] = val ;

	},

	get : function(key1, key2) {

		return this.prefs[key1][key2] ;

	},

	readDefault : function(key1, key2) {

		return gConf['defaultPrefs'][key1][key2] ;

	},

	reset : function(entries) {

		for (var i = 0; i < entries.length ; i++) {

			var key1 = entries[i] ;

			for (var key2 in gConf['defaultPrefs'][key1]) {

				this.persist(key1, key2, gConf['defaultPrefs'][key1][key2]) ;

			}

		}

	}

}