var eUserType = { Self: 0, User: 1, Group: 2 };

function user( _id, _name, _type, _avatar ) {
	this.id		= _id;
	this.name	= _name;
	this.type	= _type;
	this.av		= _avatar;
	this.image	= null;
	this.lat	= null;
	this.lng	= null;
	if( !this.av || this.av == '' ) this.av = 'genav.gif';
}
user.prototype = {
	getImage: function() {
		if( !this.image ) {
			var d = new Date();
			this.image = new Image();			
			//this.image.onabort = this.image.onerror = function() { this.src = './avatars/genav.gif'; }
			if( this.type == eUserType.Group ) this.image.src = 'image.php?gid=' + this.id + '&' + d.getFullYear() + d.getMonth() + d.getDate();
			else this.image.src = 'image.php?id=' + this.id + '&' + d.getFullYear() + d.getMonth() + d.getDate();
		}
		return this.image.cloneNode( true );
	}
}

var usrMgr = new userManager();

function userManager(){
	this.loaded = false;
	this.users 	= [];
	this.groups	= [];
	this.onLoad	= null;
	this.av = null;
}

userManager.prototype.getByID = function( _id ){
	var res = this.getUserByID( _id );
	if( !res ) res = this.getGroupByID( _id );
	return res;
}

userManager.prototype.getUserByID = function( _id ){
	_id = parseInt( _id, 10 );
	for( var i = 0; i < this.users.length; i++ ){
		if( this.users[ i ].id == _id ) return this.users[ i ];
	}
	return new user( _id, '<b>UNKNOWN USER</b>', eUserType.User );
}

userManager.prototype.getGroupByID = function( _id ){
	_id = parseInt( _id, 10 );
	for( var i = 0; i < this.groups.length; i++ ){
		if( this.groups[ i ].id == _id ) return this.groups[ i ];
	}
	return new user( _id, '<b>UNKNOWN GROUP</b>', eUserType.Group );
}

userManager.prototype.retrieveUsers = function(){
	this.loaded = false;
	var o = new ajaxobject2();
	o.create( this, this.loadUsers, eAjaxModes.Get, 'wheriz.php?get=users', '' );
	o.request();
}

/* List management
	var l = ge( "users" );
	if( vv.length > 0  ){
		if( users ) delete users;
		users = new Array();
		for( var j = 0; j < l.options.length; j++ )
			l.remove( j );
		for( var k = 0; k < vv.length; k++ ){
			var t = ga( vv[ k ], 'name' );
			var opt = document.createElement( 'option' );
			opt.text = t;
			try{ 
				l.add( opt, null );
			} catch( e ){
				l.add( opt );
			}
*/

userManager.prototype.loadUsers = function( _obj ){
	_obj.thisPtr.users.clear();
	var response = _obj.http_request.responseXML.documentElement;
	_obj.thisPtr.av = ga( gfc( response ), 'image' );
	var uid = ga( response, 'id' );
	_obj.thisPtr.users.push( new user( uid, loc_js.me, eUserType.Self ) );
	var vv = gds( response, 'user' );
	if( vv.length > 0 && _obj.thisPtr ){
		for( var k = 0; k < vv.length; k++ ){
			var vi = vv[ k ];
			var t = ga( vi, 'name' );
			var u = new user( ga( vi, 'id' ), t, eUserType.User, ga( vi, 'image' ) );
			u.city = ga( vi, 'city' );
			u.eid = ga( vi, 'eid' );
			u.lat = parseFloat( ga( vi, 'lat' ) );
			u.lng = parseFloat( ga( vi, 'lng' ) );
			u.sector = parseInt( ga( vi, 'sector' ), 10 );
			u.te = new wTimestamp( parseInt( ga( vi, 'te' ), 10 ), 0, null );
			_obj.thisPtr.users.push( u );
		}
	}
	var vv = gds( response, 'group' );
	if( vv.length > 0 && _obj.thisPtr ){
		_obj.thisPtr.groups.clear();
		for( var k = 0; k < vv.length; k++ ){
			var t = ga( vv[ k ], 'name' );
			_obj.thisPtr.groups.push( new user( ga( vv[ k ], 'id' ), t, eUserType.Group, '' ) );
		}
	}
	_obj.thisPtr.loaded = true;
	if( _obj.thisPtr.onLoad ) _obj.thisPtr.onLoad();
}