<?php

/**
 * @file
 * Rules link i18n integration module via entity API i18n support.
 *
 * @see EntityDefaultI18nController
 */

/**
 * Implements hook_entity_info_alter().
 */
function rules_link_i18n_entity_info_alter(&$info) {
  // Enable i18n support via the entity API.
  $info['rules_link']['i18n controller class'] = 'RulesLinkI18nController';
}

/**
 * Customized i18n string integration controller.
 */
class RulesLinkI18nController extends EntityDefaultI18nStringController {

  /**
   * Overriddes EntityDefaultI18nStringController::hook_object_info() to include a custom object wrapper.
   */
  public function hook_object_info() {
    $info = parent::hook_object_info();
    $info['rules_link']['class'] = 'RulesLinkI18nStringObjectWrapper';
    return $info;
  }

  /**
   * Overrides EntityDefaultI18nStringController::translatableProperties() to define our custom ones.
   */
  protected function translatableProperties() {
    $properties = array();
    $properties['text'] = t('Link text');
    $properties['confirm_question'] = t('Confirm question');
    $properties['confirm_description'] = t('Confirm description');
    return $properties;
  }
}

/**
 * Custom i18n object wrapper.
 */
class RulesLinkI18nStringObjectWrapper extends i18n_string_object_wrapper {

  /**
   * Overrides i18n_string_object_wrapper::get_field() to read properties from the settings array.
   */
  public function get_field($field, $default = NULL) {
    return isset($this->object->settings[$field]) ? $this->object->settings[$field] : parent::get_field($field, $default);
  }
}

/**
 * Implements hook_rules_link_insert().
 */
function rules_link_i18n_rules_link_insert($rules_link) {
  i18n_string_object_update('rules_link', $rules_link);
}

/**
 * Implements hook_rules_link_update().
 */
function rules_link_i18n_rules_link_update($rules_link) {
  // Account for name changes.
  if ($rules_link->original->name != $rules_link->name) {
    i18n_string_update_context("rules_link:rules_link:{$rules_link->original->name}:*", "rules_link:rules_link:{$rules_link->name}:*");
  }
  i18n_string_object_update('rules_link', $rules_link);
}

/**
 * Implements hook_rules_link_delete().
 */
function rules_link_i18n_rules_link_delete($rules_link) {
  i18n_string_object_remove('rules_link', $rules_link);
}