<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.3                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2013                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM is distributed in the hope that it will be useful, but     |
 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
 | See the GNU Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
*/

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC (c) 2004-2013
 * $Id$
 *
 */

/**
 * This class generates form components for Error Handling and Debugging
 *
 */
class CRM_Admin_Form_Setting_UpdateConfigBackend extends CRM_Admin_Form_Setting {
  protected $_oldBaseDir;
  protected $_oldBaseURL;
  protected $_oldSiteName;

  /**
   * Function to build the form
   *
   * @return None
   * @access public
   */
  public function buildQuickForm() {
    CRM_Utils_System::setTitle(ts('Settings - Cleanup Caches and Update Paths'));

    list(
      $this->_oldBaseURL,
      $this->_oldBaseDir,
      $this->_oldSiteName
    ) = CRM_Core_BAO_ConfigSetting::getConfigSettings();

    $this->assign('oldBaseURL', $this->_oldBaseURL);
    $this->assign('oldBaseDir', $this->_oldBaseDir);
    $this->assign('oldSiteName', $this->_oldSiteName);

    $this->addElement(
      'submit', $this->getButtonName('next', 'cleanup'), 'Cleanup Caches',
      array('class' => 'form-submit', 'id' => 'cleanup-cache')
    );

    $this->add('text', 'newBaseURL', ts('New Base URL'), NULL, TRUE);
    $this->add('text', 'newBaseDir', ts('New Base Directory'), NULL, TRUE);
    if ($this->_oldSiteName) {
      $this->add('text', 'newSiteName', ts('New Site Name'), NULL, TRUE);
    }
    $this->addFormRule(array('CRM_Admin_Form_Setting_UpdateConfigBackend', 'formRule'));

    parent::buildQuickForm();
  }

  function setDefaultValues() {
    if (!$this->_defaults) {
      parent::setDefaultValues();

      $config = CRM_Core_Config::singleton();
      list(
        $this->_defaults['newBaseURL'],
        $this->_defaults['newBaseDir'],
        $this->_defaults['newSiteName']
      ) = CRM_Core_BAO_ConfigSetting::getBestGuessSettings();
    }

    return $this->_defaults;
  }

  static function formRule($fields) {
    $tmpDir = trim($fields['newBaseDir']);

    $errors = array();
    if (!is_writeable($tmpDir)) {
      $errors['newBaseDir'] = ts('%1 directory does not exist or cannot be written by webserver',
        array(1 => $tmpDir)
      );
    }
    return $errors;
  }

  function postProcess() {
    if (CRM_Utils_Array::value('_qf_UpdateConfigBackend_next_cleanup', $_POST)) {

      $config = CRM_Core_Config::singleton();

      // cleanup templates_c directory
      $config->cleanup(1, FALSE);

      // clear db caching
      CRM_Core_Config::clearDBCache();
      parent::rebuildMenu();

      CRM_Core_Session::setStatus(ts('Cache has been cleared and menu has been rebuilt successfully.'), ts("Success"), "success");
      return CRM_Utils_System::redirect(CRM_Utils_System::url('civicrm/admin/setting/updateConfigBackend', 'reset=1'));
    }

    // redirect to admin page after saving
    $session = CRM_Core_Session::singleton();
    $session->pushUserContext(CRM_Utils_System::url('civicrm/admin'));

    $params = $this->controller->exportValues($this->_name);

    //CRM-5679
    foreach ($params as $name => & $val) {
      if ($val && in_array($name, array(
        'newBaseURL', 'newBaseDir', 'newSiteName'))) {
        $val = CRM_Utils_File::addTrailingSlash($val);
      }
    }

    $from = array($this->_oldBaseURL, $this->_oldBaseDir);
    $to = array(trim($params['newBaseURL']),
      trim($params['newBaseDir']),
    );
    if ($this->_oldSiteName &&
      $params['newSiteName']
    ) {
      $from[] = $this->_oldSiteName;
      $to[] = $params['newSiteName'];
    }

    $newValues = str_replace($from,
      $to,
      $this->_defaults
    );

    parent::commonProcess($newValues);

    parent::rebuildMenu();
  }
}