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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  namespace core_communication\task;
  18  
  19  use core\task\adhoc_task;
  20  use core_communication\processor;
  21  
  22  /**
  23   * Class delete_room_task to add a task to delete a room and execute the task to action the deletion.
  24   *
  25   * this task will be queued by the communication api and will use the communication handler api to action the deletion.
  26   *
  27   * @package    core_communication
  28   * @copyright  2023 Safat Shahin <safat.shahin@moodle.com>
  29   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  30   */
  31  class delete_room_task extends adhoc_task {
  32      public function execute() {
  33          $data = $this->get_custom_data();
  34  
  35          $communication = processor::load_by_id($data->id);
  36  
  37          if ($communication === null) {
  38              mtrace("Skipping room creation because the instance does not exist");
  39              return;
  40          }
  41  
  42          // First remove the members from the room.
  43          $communication->get_room_user_provider()->remove_members_from_room($communication->get_instance_userids(true, true));
  44          // Now remove any mapping for users who are not in the room.
  45          $communication->delete_instance_non_synced_user_mapping($communication->get_instance_userids(false, true));
  46  
  47          // Now delete the room.
  48          if ($communication->get_room_provider()->delete_chat_room()) {
  49              $communication->delete_instance();
  50          }
  51      }
  52  
  53      /**
  54       * Queue the task for the next run.
  55       *
  56       * @param processor $communication The communication processor to perform the action on
  57       */
  58      public static function queue(
  59          processor $communication,
  60      ): void {
  61  
  62          // Add ad-hoc task to update the provider room.
  63          $task = new self();
  64          $task->set_custom_data([
  65              'id' => $communication->get_id(),
  66          ]);
  67  
  68          // Queue the task for the next run.
  69          \core\task\manager::queue_adhoc_task($task);
  70      }
  71  }