<?php

class Cms_Auth
{
    protected $_authAdapter;
    protected $_username;
    protected $_password;
    protected $_tableName = 'users';
    protected $_identity = 'username';
    protected $_credential = 'password';
    protected $_result;

    public function __construct($username = null, $password = null, $remeber = false)
    {
        $this->_username = $username;
        $this->_password = md5($password);
        $this->_remember = $remeber;
    }

    public function getAdapter()
  {
    $dbAdapter = Zend_Registry::get('dbAdapter');
    $salt = Zend_Registry::get('configuration')->auth->salt;
    $this->_authAdapter = new Zend_Auth_Adapter_DbTable($dbAdapter);
    $this->_authAdapter->setTableName($this->_tableName)
                ->setIdentityColumn($this->_identity)
                ->setCredentialColumn($this->_credential);

    $this->_authAdapter->setIdentity($this->_username);
    $this->_authAdapter->setCredential($this->_password);

    return $this->_authAdapter;
  }

  public function authenticate()
  {
    $auth       = Zend_Auth::getInstance();
    $result = $auth->authenticate($this->getAdapter());

    if ($result->isValid())
    {
        $data = $this->_authAdapter->getResultRowObject(null, 'password');
        Cms_Debug::debug($data);
        // check if the user is inactive and return error + msg
      if (!$data->active)
      {
        $auth->clearIdentity();
        return 'inactive';
      }

      // this session will be remembered?
      if ($this->_remember)
      {
        Zend_Session::rememberMe();
      }

      // save data to storage
      $auth->getStorage()->write($data);

      return 'success';
    }

    return 'fail';
  }
}