<?php

/**
 * @file
 * Main module file for the translation management node source plugin user
 * interface.
 */

/**
 * Implements hook_page_alter().
 */
function tmgmt_node_ui_page_alter(&$page) {
  // Translation tabs for nodes.
  if (($node = menu_get_object()) && entity_access('create', 'tmgmt_job')) {
    if (isset($page['content']['system_main']['translation_node_overview'])) {
      module_load_include('inc', 'tmgmt_node_ui', 'tmgmt_node_ui.pages');
      $page['content']['system_main']['translation_node_overview'] = drupal_get_form('tmgmt_node_ui_node_form', $node, $page['content']['system_main']['translation_node_overview']);
    }
    // Support the context module: when context is used for placing the
    // system_main block, then block contents appear nested one level deeper
    // under another 'content' key.
    elseif (isset($page['content']['system_main']['content']['translation_node_overview'])) {
      module_load_include('inc', 'tmgmt_node_ui', 'tmgmt_node_ui.pages');
      $page['content']['system_main']['content']['translation_node_overview'] = drupal_get_form('tmgmt_node_ui_node_form', $node, $page['content']['system_main']['content']['translation_node_overview']);
    }
  }
}

/**
 * Implements hook_action_info().
 */
function tmgmt_node_ui_action_info() {
  return array(
    'tmgmt_node_ui_checkout_multiple_action' => array(
      'type' => 'node',
      'label' => t('Request translations'),
      'configurable' => false,
      'aggregate' => true
    )
  );
}

/**
 * Action to do multistep checkout for translations.
 *
 * @param array $nodes
 *   Array of Drupal nodes.
 * @param $info
 *   Action info - not used.
 *
 */
function tmgmt_node_ui_checkout_multiple_action($nodes, $info) {
  $jobs = array();
  $source_lang_registry = array();

  // Loop through entities and create individual jobs for each source language.
  foreach ($nodes as $node) {

    try {

      // For given source lang no job exists yet.
      if (!isset($source_lang_registry[$node->language])) {
        // Create new job.
        $job = tmgmt_job_create($node->language, NULL, $GLOBALS['user']->uid);
        // Add initial job item.
        $job->addItem('node', 'node', $node->nid);
        // Add job identifier into registry
        $source_lang_registry[$node->language] = $job->tjid;
        // Add newly created job into jobs queue.
        $jobs[$job->tjid] = $job;
      }
      // We have a job for given source lang, so just add new job item for the
      // existing job.
      else {
        $jobs[$source_lang_registry[$node->language]]->addItem('node', 'node', $node->nid);
      }
    }
    catch (TMGMTException $e) {
      watchdog_exception('tmgmt', $e);
      drupal_set_message(t('Unable to add job item for node %name. Make sure the source content is not empty.', array('%name' => $node->title)), 'error');
    }
  }

  // If necessary, do a redirect.
  $redirects = tmgmt_ui_job_checkout_multiple($jobs);
  if ($redirects) {
    tmgmt_ui_redirect_queue_set($redirects, current_path());
    drupal_set_message(format_plural(count($redirects), t('One job needs to be checked out.'), t('@count jobs need to be checked out.')));
    drupal_goto(tmgmt_ui_redirect_queue_dequeue());
  }
}