<?php

class App_User_AuthAdapter extends Qs_Auth_Adapter_DbTable
{
    protected $_tableAlias = 'User';
    protected $_tableName;
    protected $_identityColumn = 'login';
    protected $_credentialColumn = 'password';
    protected $_credentialTreatment = "CONVERT(VARCHAR(32), HashBytes('MD5', \"salt\" + ?), 2)";
    protected $_xPdfUserId;

    public function getXPdfUserId()
    {
        return $this->_xPdfUserId;
    }

    public function setXPdfUserId($xPdfUserId)
    {
        $this->_xPdfUserId = $xPdfUserId;
        return $this;
    }

    public function setIdentity($spec)
    {
        parent::setIdentity($spec);

        // gag for wkhtml2pdf authenticatation
        if (is_array($spec) && isset($spec['xPdfUserId'])) {
            $this->setXPdfUserId($spec['xPdfUserId']);
        }
        return $this;
    }

    protected function _authenticateCreateSelect()
    {
        if (null == ($userId = $this->getXPdfUserId())) {
            return parent::_authenticateCreateSelect();
        }

        // gag for wkhtml2pdf authenticatation
        $select = $this->_zendDb->select();
        $select->from(Qs_Db::getPair($this->_tableAlias), array('*', new Zend_Db_Expr('1 AS zend_auth_credential_match')))
            ->where('id = ?', $userId)
            ->limit(1);
        return $select;
    }

    protected function _authenticateSetup()
    {
        if (null == $this->getXPdfUserId()) {
            return parent::_authenticateSetup();
        }

        // gag for wkhtml2pdf authenticatation
        $this->_authenticateResultInfo = array(
            'code'       => Zend_Auth_Result::FAILURE,
            'xPdfUserId' => $this->getXPdfUserId(),
            'messages'   => array()
        );
        return true;
    }

}