<?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
 * $Id$
 *
 */

/**
 * Create a page for displaying Custom Options.
 *
 * Heart of this class is the run method which checks
 * for action type and then displays the appropriate
 * page.
 *
 */
class CRM_Custom_Page_Option extends CRM_Core_Page {

  /**
   * The Group id of the option
   *
   * @var int
   * @access protected
   */
  protected $_gid;

  /**
   * The field id of the option
   *
   * @var int
   * @access protected
   */
  protected $_fid;

  /**
   * The action links that we need to display for the browse screen
   *
   * @var array
   * @access private
   */
  private static $_actionLinks;

  /**
   * Get the action links for this page.
   *
   * @param null
   *
   * @return array  array of action links that we need to display for the browse screen
   * @access public
   */
  function &actionLinks() {
    if (!isset(self::$_actionLinks)) {
      self::$_actionLinks = array(
        CRM_Core_Action::UPDATE => array(
          'name' => ts('Edit Option'),
          'url' => 'civicrm/admin/custom/group/field/option',
          'qs' => 'reset=1&action=update&id=%%id%%&fid=%%fid%%&gid=%%gid%%',
          'title' => ts('Edit Multiple Choice Option'),
        ),
        CRM_Core_Action::VIEW => array(
          'name' => ts('View'),
          'url' => 'civicrm/admin/custom/group/field/option',
          'qs' => 'action=view&id=%%id%%&fid=%%fid%%',
          'title' => ts('View Multiple Choice Option'),
        ),
        CRM_Core_Action::DISABLE => array(
          'name' => ts('Disable'),
          'extra' => 'onclick = "enableDisable( %%id%%,\'' . 'CRM_Core_BAO_OptionValue' . '\',\'' . 'enable-disable' . '\' );"',
          'ref' => 'disable-action',
          'title' => ts('Disable Mutliple Choice Option'),
        ),
        CRM_Core_Action::ENABLE => array(
          'name' => ts('Enable'),
          'extra' => 'onclick = "enableDisable( %%id%%,\'' . 'CRM_Core_BAO_OptionValue' . '\',\'' . 'disable-enable' . '\' );"',
          'ref' => 'enable-action',
          'title' => ts('Enable Mutliple Choice Option'),
        ),
        CRM_Core_Action::DELETE => array(
          'name' => ts('Delete'),
          'url' => 'civicrm/admin/custom/group/field/option',
          'qs' => 'action=delete&id=%%id%%&fid=%%fid%%',
          'title' => ts('Disable Multiple Choice Option'),
        ),
      );
    }
    return self::$_actionLinks;
  }

  /**
   * Browse all custom group fields.
   *
   * @param null
   *
   * @return void
   * @access public
   */
  function browse() {
    //get the default value from custom fields
    $customFieldBAO = new CRM_Core_BAO_CustomField();
    $customFieldBAO->id = $this->_fid;
    if ($customFieldBAO->find(TRUE)) {
      $defaultValue = $customFieldBAO->default_value;
      $fieldHtmlType = $customFieldBAO->html_type;
    }
    else {
      CRM_Core_Error::fatal();
    }
    $defVal = explode(CRM_Core_DAO::VALUE_SEPARATOR,
      substr($defaultValue, 1, -1)
    );

    // get the option group id
    $optionGroupID = CRM_Core_DAO::getFieldValue('CRM_Core_DAO_CustomField',
      $this->_fid,
      'option_group_id'
    );

    $query = "
SELECT id, label
FROM   civicrm_custom_field
WHERE  option_group_id = %1";
    $params = array(1 => array($optionGroupID, 'Integer'),
      2 => array($this->_fid, 'Integer'),
    );
    $dao = CRM_Core_DAO::executeQuery($query, $params);
    $reusedNames = array();
    if ($dao->N > 1) {
      while ($dao->fetch()) {
        $reusedNames[] = $dao->label;
      }
      $reusedNames = implode(', ', $reusedNames);
      $newTitle = ts('%1 - Multiple Choice Options',
        array(1 => $reusedNames)
      );
      CRM_Utils_System::setTitle($newTitle);
      $this->assign('reusedNames', $reusedNames);
    }

    $query = "
SELECT   *
  FROM   civicrm_option_value
 WHERE   option_group_id = %1
ORDER BY weight, label
";
    $params = array(1 => array($optionGroupID, 'Integer'));
    $dao = CRM_Core_DAO::executeQuery($query, $params);

    $customOption = array();
    $fields       = array('label', 'value', 'is_active', 'weight');
    $config       = CRM_Core_Config::singleton();
    while ($dao->fetch()) {
      $customOption[$dao->id] = array();
      foreach ($fields as $field) {
        $customOption[$dao->id][$field] = $dao->$field;
      }

      $action = array_sum(array_keys($this->actionLinks()));

      // update enable/disable links depending on custom_field properties.
      if ($dao->is_active) {
        $action -= CRM_Core_Action::ENABLE;
      }
      else {
        $action -= CRM_Core_Action::DISABLE;
      }

      if ($fieldHtmlType == 'CheckBox' ||
        $fieldHtmlType == 'AdvMulti-Select' ||
        $fieldHtmlType == 'Multi-Select'
      ) {
        if (in_array($dao->value, $defVal)) {
          $customOption[$dao->id]['default_value'] = '<img src="' . $config->resourceBase . 'i/check.gif" />';
        }
        else {
          $customOption[$dao->id]['default_value'] = '';
        }
      }
      else {
        if ($defaultValue == $dao->value) {
          $customOption[$dao->id]['default_value'] = '<img src="' . $config->resourceBase . 'i/check.gif" />';
        }
        else {
          $customOption[$dao->id]['default_value'] = '';
        }
      }

      $customOption[$dao->id]['action'] = CRM_Core_Action::formLink(self::actionLinks(),
        $action,
        array(
          'id' => $dao->id,
          'fid' => $this->_fid,
          'gid' => $this->_gid,
        )
      );
    }

    // Add order changing widget to selector
    $returnURL = CRM_Utils_System::url('civicrm/admin/custom/group/field/option',
      "reset=1&action=browse&gid={$this->_gid}&fid={$this->_fid}"
    );
    $filter = "option_group_id = {$optionGroupID}";
    CRM_Utils_Weight::addOrder($customOption, 'CRM_Core_DAO_OptionValue',
      'id', $returnURL, $filter
    );
    $this->assign('customOption', $customOption);
  }

  /**
   * edit custom Option.
   *
   * editing would involved modifying existing fields + adding data to new fields.
   *
   * @param string  $action   the action to be invoked
   *
   * @return void
   * @access public
   */
  function edit($action) {
    // create a simple controller for editing custom data
    $controller = new CRM_Core_Controller_Simple('CRM_Custom_Form_Option', ts('Custom Option'), $action);

    // set the userContext stack
    $session = CRM_Core_Session::singleton();
    $session->pushUserContext(CRM_Utils_System::url('civicrm/admin/custom/group/field/option',
        "reset=1&action=browse&fid={$this->_fid}&gid={$this->_gid}"
      ));
    $controller->setEmbedded(TRUE);
    $controller->process();
    $controller->run();
    $this->browse();
  }

  /**
   * Run the page.
   *
   * This method is called after the page is created. It checks for the
   * type of action and executes that action.
   *
   * @param null
   *
   * @return void
   * @access public
   */
  function run() {

    // get the field id
    $this->_fid = CRM_Utils_Request::retrieve('fid', 'Positive',
      $this, FALSE, 0
    );
    $this->_gid = CRM_Utils_Request::retrieve('gid', 'Positive',
      $this, FALSE, 0
    );

    //as url contain $gid so append breadcrumb dynamically.
    $breadcrumb = array(array('title' => ts('Custom Data Fields'),
        'url' => CRM_Utils_System::url('civicrm/admin/custom/group/field', 'reset=1&gid=' . $this->_gid),
      ));
    CRM_Utils_System::appendBreadCrumb($breadcrumb);

    if ($this->_fid) {
      $fieldTitle = CRM_Core_BAO_CustomField::getTitle($this->_fid);
      $this->assign('fid', $this->_fid);
      $this->assign('gid', $this->_gid);
      $this->assign('fieldTitle', $fieldTitle);
      CRM_Utils_System::setTitle(ts('%1 - Multiple Choice Options', array(1 => $fieldTitle)));
    }

    // get the requested action
    $action = CRM_Utils_Request::retrieve('action', 'String',
      // default to 'browse'
      $this, FALSE, 'browse'
    );

    // assign vars to templates
    $this->assign('action', $action);

    $id = CRM_Utils_Request::retrieve('id', 'Positive',
      $this, FALSE, 0
    );


    // what action to take ?
    if (($action &
        (CRM_Core_Action::UPDATE | CRM_Core_Action::ADD |
          CRM_Core_Action::VIEW | CRM_Core_Action::DELETE
        )
      ) ||
      !empty($_POST)
    ) {
      // no browse for edit/update/view
      $this->edit($action);
    }
    else {
      $this->browse();
    }
    // Call the parents run method
    return parent::run();
  }
}