<?
require_once ("../lib/setting.inc.php");
require_once ("../lib/user.inc.php");
require_once ("../lib/history.inc.php");
require_once ("../lib/i18n.inc.php");


class UserManagement
{
	private $status;
	private $active = 0;
	private $user;

	public function __construct ()
	{
		session_id () || session_start ();
		
		if (!isset ($_SESSION['cms']['edit']['user_management'])) {
			$_SESSION['cms']['edit']['user_management']['activ_id'] = 0;
		}
		$this->active = &$_SESSION['cms']['edit']['user_management']['activ_id'];
		
		if ($this->active) {
			$this->user = $this->user ();
		}
		
		$this->status = $this->status ();
	}
	
	//***************************
	// GETTER / SETTER
	//***************************
	public function __get ($name)
	{
		switch ($name) {
		case "edit_groups":
			$userGroups = User::get ("groups");
			$allGroups = User::getEditGroups (true);
			$groups = array ();
			if (isset ($userGroups['all']) || User::get ("is_admin")) {
				$groups = $allGroups;
			} else {
				foreach ($allGroups as $group => $name) {
					if (isset ($userGroups[$group]) || $group=="self") {
						$groups[$group] = $name;
					}
				}
			}
			return $groups;
		case "is_admin":
			return User::get ("is_admin");
		case "may_edit_users":
			return User::get ("is_admin") || User::get ("may_edit_users");
		case "may_make_backups":
			return User::get ("is_admin") || User::get ("may_make_backups");
		case "may_edit_i18n":
			return User::get ("is_admin") || User::get ("may_edit_i18n");
		default:
			return $this->$name;
		}
	}
	
	public function __set ($name, $value)
	{
	}

	private function status ()
	{
		$status['has_ldap_user'] = false;
		foreach (User::getList () as $key => $row) {
			$status['has_ldap_user'] |= $row['status'] & User::STATUS_LDAP_USER;
		}
		
		$status['values'] = User::getList ($this->active);
		if (isset ($status['values'][0])) {
			$status['values'] = $status['values'][0];
			$status['values']['password'] = $status['values']['password'] ? "****" : "";
		}
		$status['values']['may_make_backups'] = isset ($status['values']['may_make_backups']) ? $status['values']['may_make_backups'] : "";
		$status['values']['may_edit_i18n'] = isset ($status['values']['may_edit_i18n']) ? $status['values']['may_edit_i18n'] : "";
		$status['values']['ldap_user'] = isset ($status['values']['status']) ? ($status['values']['status'] & User::STATUS_LDAP_USER) : 0;
		
		$status['messages'] = array ();
		
		$status['quickbar']['disabledButtons']['save'] = true;
		if (!History::getFirstUndo ($this->active, "user", false)) {
			$status['quickbar']['disabledButtons']['undo'] = true;
		}
		if (!History::getFirstRedo ($this->active, "user", false)) {
			$status['quickbar']['disabledButtons']['redo'] = true;
		}
		$status['quickbar']['disabledButtons']['delete'] = !$this->active;
		
		$status['statusbar']['value'] = "";	// Elementname, User, letzte Änderung,...
		if (User::get ("is_admin")) {
			$status['statusbar']['value'] .= " #{$this->active}";
		}
		
		return $status;
	}
	
	public function user ()
	{
		if ($this->active == -1) {
			$user = array ('id' => 0, 'realname' => "", 'username' => "", 'password' => "", 'groups' => "", 'may_edit_users' => "", 'may_make_backups' => "", 'may_edit_i18n' => "", 'is_admin' => "", 'ldap_user' => false);
		} else {
			$user = User::getList ($this->active);
			$user['may_make_backups'] = isset ($user['may_make_backups']) ? $user['may_make_backups'] : "";
			$user['may_edit_i18n'] = isset ($user['may_edit_i18n']) ? $user['may_edit_i18n'] : "";
			$user['password'] = $user['password'] ? "****" : "";
			$user['ldap_user'] = $user['status'] & User::STATUS_LDAP_USER;
		}
		return $user;
	}
	
	public function userList ()
	{
		$values = User::getList ();
		foreach ($values as $key => $row) {
			$values[$key]['may_make_backups'] = isset ($values[$key]['may_make_backups']) ? $values[$key]['may_make_backups'] : "";
			$values[$key]['may_edit_i18n'] = isset ($values[$key]['may_edit_i18n']) ? $values[$key]['may_edit_i18n'] : "";
			$values[$key]['password'] = $row['password'] ? "****" : "";
			$values[$key]['ldap_user'] = $row['status'] & User::STATUS_LDAP_USER;
		}
		return $values;
	}
	
	public function addNewUser ()
	{
		$this->active = -1;
	}
	
	public function select ($id)
	{
		$this->active = $id;
	}
	
	public function save ($values)
	{
		if (isset ($values['password'])) {
			if (strlen ($values['password']) < 6) {
				return $this->message ("password is to short");
			}
			if (!preg_match ("/[a-zA-Z]+(\W|\d)|(\W|\d)+[a-zA-Z]/", $values['password'])) {
				return $this->message ("password must contain a-Z and 0-9 or special characters");
			}
		}
		if (!$this->active && empty ($values['username'])) {
			return $this->message ("username missing");
		}
		if (User::set ($this->active, $values) == -1) {
			return $this->message ("username already exists");
		} else {
			$this->select (0);
		}
	}

	public function del ()
	{
		User::del ($this->active);
		$this->active = 0;
	}
	
	public function undo ()
	{
		if ($undo = History::getFirstUndo ($this->active, "user", false)) {
			History::restore ($undo['id']);
			$this->status = $this->status ();
		}
	}
	
	public function redo ()
	{
		if ($undo = History::getFirstRedo ($this->active, "user", false)) {
			History::restore ($undo['id']);
			$this->status = $this->status ();
		}
	}
	
	public function message ($text)
	{
		return I18n::tr ("edit", "user_management/$text", $text);
	}
	
	// Wandelt das gegebene Array/Text in eine Form um, die direkt einer JavaScript Variablen zugewiesen werden kann
	public function toJavaScript ($value)
	{
		if (is_array ($value)) {
			$values = array ();
			foreach ($value as $key => $val) {
				$values[] = "'$key':".$this->toJavaScript ($val);
			}
			return "{".implode (",", $values)."}";
		} else {
			$value = Database::escape ($value);
			return ($value===true) ? "true" : (($value===false) ? "false" : "'$value'");
		}
	}
}
?>