<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 5                                                  |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2018                                |
 +--------------------------------------------------------------------+
 | 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) 2004-2018
 */

/**
 * Auxiliary class to provide support to the Contact Form class.
 *
 * Does this by implementing a small set of static methods.
 */
class CRM_Contact_Form_Edit_Household {

  /**
   * This function provides the HTML form elements that are specific to the Household Contact Type.
   *
   * @param CRM_Core_Form $form
   *   Form object.
   * @param int $inlineEditMode
   *   ( 1 for contact summary.
   * top bar form and 2 for display name edit )
   */
  public static function buildQuickForm(&$form, $inlineEditMode = NULL) {
    $form->applyFilter('__ALL__', 'trim');

    if (!$inlineEditMode || $inlineEditMode == 1) {
      // household_name
      $form->addField('household_name');
    }

    if (!$inlineEditMode || $inlineEditMode == 2) {
      // nick_name
      $form->addField('nick_name');
      $form->addField('contact_source', array('label' => ts('Source')));
    }

    if (!$inlineEditMode) {
      $form->addField('external_identifier', array('label' => ts('External ID')));
      $form->addRule('external_identifier',
        ts('External ID already exists in Database.'),
        'objectExists',
        array('CRM_Contact_DAO_Contact', $form->_contactId, 'external_identifier')
      );
    }
  }

  /**
   * Add rule for household.
   *
   * @param array $fields
   *   Array of form values.
   * @param array $files
   *   Unused.
   * @param int $contactID
   *
   * @return array|bool
   *   $error
   */
  public static function formRule($fields, $files, $contactID = NULL) {
    $errors = array();
    $primaryID = CRM_Contact_Form_Contact::formRule($fields, $errors, $contactID, 'Household');

    // make sure that household name is set
    if (empty($fields['household_name'])) {
      $errors['household_name'] = 'Household Name should be set.';
    }

    return empty($errors) ? TRUE : $errors;
  }

}