<?php

/**
 * @file
 * Install, update and uninstall functions for the checklistapiexample module.
 */

/**
 * Implements hook_uninstall().
 */
function checklistapiexample_uninstall() {
  /** @var \Drupal\checklistapi\Storage\StateStorage $storage */
  $storage = \Drupal::service('checklistapi_storage.state');
  $storage->setChecklistId('example_checklist')->deleteSavedProgress();
}

/**
 * Move saved progress from old config storage to new state storage.
 */
function checklistapiexample_update_8101() {
  $checklist_id = 'example_checklist';

  // Get saved progress from old config storage.
  /** @var \Drupal\checklistapi\Storage\ConfigStorage $old_config_storage */
  $old_config_storage = \Drupal::service('checklistapi_storage.config');
  $saved_progress = $old_config_storage->setChecklistId($checklist_id)
    ->getSavedProgress();

  if (!$saved_progress) {
    return;
  }

  // Copy saved progress to new state storage.
  /** @var \Drupal\checklistapi\Storage\StateStorage $new_state_storage */
  $new_state_storage = \Drupal::service('checklistapi_storage.state');
  $new_state_storage->setChecklistId($checklist_id)
    ->setSavedProgress($saved_progress);

  // Delete old config storage.
  $old_config_storage->deleteSavedProgress();
}