<?php

/**
 * @file
 * Installation functionality for the recurring events registration module.
 */

use Drupal\Core\Field\BaseFieldDefinition;
use Drupal\recurring_events_registration\Plugin\Field\ComputedRegistrantTitleFieldItemList;

/**
 * Install the schema updates for eventseries entities to add registration.
 *
 * @see hook_install()
 */
function recurring_events_registration_install() {
  $storage_definition = BaseFieldDefinition::create('event_registration')
    ->setName('event_registration')
    ->setLabel(t('Event Registration'))
    ->setDescription('The event registration configuration.')
    ->setDisplayConfigurable('form', TRUE)
    ->setDisplayConfigurable('view', TRUE)
    ->setRevisionable(TRUE)
    ->setTranslatable(FALSE)
    ->setCardinality(1)
    ->setRequired(FALSE)
    ->setDisplayOptions('form', [
      'type' => 'event_registration',
      'weight' => 10,
    ]);

  \Drupal::entityDefinitionUpdateManager()
    ->installFieldStorageDefinition('event_registration', 'eventseries', 'eventseries', $storage_definition);

  // When enabling registrations make sure we create all the registrant types
  // to match the existing series and instance types.
  foreach (\Drupal::entityTypeManager()->getStorage('eventseries_type')->loadMultiple() as $type) {
    $registrant_type = \Drupal::entityTypeManager()->getStorage('registrant_type')->load($type->id());
    if (empty($registrant_type)) {
      $registrant_type = \Drupal::entityTypeManager()->getStorage('registrant_type')->create([
        'id' => $type->id(),
        'label' => $type->label(),
        'description' => $type->getDescription(),
      ]);
      $registrant_type->save();
    }
  }
}

/**
 * Add the computed title field to registrants.
 */
function recurring_events_registration_update_8001() {
  $storage_definition = BaseFieldDefinition::create('string')
    ->setLabel(t('Title'))
    ->setReadOnly(TRUE)
    ->setComputed(TRUE)
    ->setClass(ComputedRegistrantTitleFieldItemList::class);

  \Drupal::entityDefinitionUpdateManager()
    ->installFieldStorageDefinition('title', 'registrant', 'registrant', $storage_definition);

  // Configure the registrants title field.
  \Drupal::configFactory()->getEditable('recurring_events_registration.registrant.config')
    ->set('title', '[registrant:email]')
    ->save(TRUE);
}

/**
 * Install the new type basefields for registrant.
 */
function recurring_events_registration_update_8002() {
  $registrant_type = BaseFieldDefinition::create('entity_reference')
    ->setLabel(t('Bundle'))
    ->setDescription(t('The registrant type.'))
    ->setSetting('target_type', 'registrant_type')
    ->setReadOnly(TRUE);

  \Drupal::entityDefinitionUpdateManager()->installFieldStorageDefinition('bundle', 'registrant', 'registrant', $registrant_type);
}

/**
 * Update the event_registration field type to add new settings.
 */
function recurring_events_registration_update_8003() {
  $entity_type_manager = \Drupal::entityTypeManager();

  $storage = $entity_type_manager->getStorage('eventseries');
  $bundle_definition = $entity_type_manager->getDefinition('eventseries');

  $id_key = $bundle_definition->getKey('id');
  $revision_key = $bundle_definition->getKey('revision');

  $table_name = $storage->getDataTable() ?: $storage->getBaseTable();
  $revision_table_name = $storage->getRevisionDataTable() ?: $storage->getRevisionTable();

  $database = \Drupal::database();
  $definition_manager = \Drupal::entityDefinitionUpdateManager();

  $reg_fields = [
    'event_registration__value',
    'event_registration__end_value',
    'event_registration__registration',
    'event_registration__registration_type',
    'event_registration__registration_dates',
    'event_registration__capacity',
    'event_registration__waitlist',
    'event_registration__time_amount',
    'event_registration__time_type',
  ];

  $reg_field_mappings = [
    'event_registration__time_amount' => 'event_registration__instance_schedule_open_amount',
    'event_registration__time_type' => 'event_registration__instance_schedule_open_units',
  ];

  $registration_values = $database->select($table_name)
    ->fields($table_name, [$id_key, $revision_key] + $reg_fields)
    ->execute()
    ->fetchAll();

  $update_fields = array_fill_keys($reg_fields, NULL);

  $database->update($table_name)
    ->fields($update_fields)
    ->execute();

  $field_storage_definition = $definition_manager->getFieldStorageDefinition('event_registration', 'eventseries');
  $definition_manager->uninstallFieldStorageDefinition($field_storage_definition);

  $storage_definition = BaseFieldDefinition::create('event_registration')
    ->setName('event_registration')
    ->setLabel(t('Event Registration'))
    ->setDescription('The event registration configuration.')
    ->setDisplayConfigurable('form', TRUE)
    ->setDisplayConfigurable('view', TRUE)
    ->setRevisionable(TRUE)
    ->setTranslatable(FALSE)
    ->setCardinality(1)
    ->setRequired(FALSE)
    ->setDisplayOptions('form', [
      'type' => 'event_registration',
      'weight' => 10,
    ]);

  \Drupal::entityDefinitionUpdateManager()
    ->installFieldStorageDefinition('event_registration', 'eventseries', 'eventseries', $storage_definition);

  if (!empty($registration_values)) {
    foreach ($registration_values as $value) {
      $values_to_restore = [
        $id_key => $value->{$id_key},
        $revision_key => $value->{$revision_key},
      ];
      foreach ($reg_fields as $field) {
        $key = $field;
        if (isset($reg_field_mappings[$field])) {
          $key = $reg_field_mappings[$field];
        }
        $values_to_restore[$key] = rtrim($value->{$field}, 's');
        $values_to_restore += [
          'event_registration__instance_schedule_open' => 'custom',
          'event_registration__instance_schedule_close' => 'start',
        ];
      }
      $database->update($table_name)
        ->fields($values_to_restore)
        ->condition($id_key, $value->{$id_key})
        ->execute();

      $database->update($revision_table_name)
        ->fields($values_to_restore)
        ->condition($id_key, $value->{$id_key})
        ->execute();
    }
  }
}

/**
 * Add the default registration message configurations.
 */
function recurring_events_registration_update_8004() {
  // Configure the registrantion messages.
  \Drupal::configFactory()->getEditable('recurring_events_registration.registrant.config')
    ->set('successfully_registered', 'Registrant successfully created.')
    ->set('successfully_registered_waitlist', 'Successfully registered to the waitlist.')
    ->set('successfully_updated', 'Registrant successfully updated.')
    ->set('successfully_updated_waitlist', 'Successfully updated waitlist registrant.')
    ->set('already_registered', 'ser already registered for this event.')
    ->set('registration_closed', 'Unfortunately, registration is not available at this time.')
    ->save(TRUE);
}

/**
 * Install the new status field.
 */
function recurring_events_registration_update_8005() {
  $definition_update_manager = \Drupal::entityDefinitionUpdateManager();

  // Add the status field.
  $status = BaseFieldDefinition::create('boolean')
    ->setLabel(t('Status'))
    ->setDescription(t('Is this registration complete?'))
    ->setDefaultValue(FALSE)
    ->setInitialValue(FALSE)
    ->setSetting('on_label', 'Complete')
    ->setDisplayOptions('form', [
      'type' => 'boolean_checkbox',
      'settings' => [
        'display_label' => FALSE,
      ],
      'weight' => 100,
    ])
    ->setDisplayConfigurable('form', TRUE)
    ->setDisplayOptions('view', [
      'type' => 'boolean',
      'label' => 'above',
      'weight' => 0,
      'settings' => [
        'format' => 'enabled-disabled',
      ],
    ])
    ->setDefaultValue(0)
    ->setDisplayConfigurable('view', FALSE);
  $definition_update_manager->installFieldStorageDefinition('status', 'registrant', 'registrant', $status);
}

/**
 * Update existing registrants to be marked as completed.
 */
function recurring_events_registration_update_8006(&$sandbox) {
  // This is a multipass update.
  // Grab all the registrants.
  if (empty($sandbox['registrants'])) {
    $registrants = \Drupal::entityTypeManager()
      ->getStorage('registrant')
      ->getQuery()
      ->execute();

    $sandbox['registrants'] = $registrants;
    $sandbox['max'] = count($registrants);
    $sandbox['limit'] = 20;
    $sandbox['progress'] = 0;
  }

  if (count($sandbox['registrants']) > 0) {
    // Loop through chunks of 20 registrants at a time.
    $registrant_ids = array_splice($sandbox['registrants'], 0, $sandbox['limit'], []);
    if (!empty($registrant_ids)) {
      $registrants = \Drupal::entityTypeManager()->getStorage('registrant')->loadMultiple($registrant_ids);
      foreach ($registrants as $registrant) {
        $registrant->status = 1;
        $registrant->save();
        $sandbox['progress']++;
      }
      $sandbox['#finished'] = ($sandbox['progress'] / $sandbox['max']);
    }
  }
  else {
    $sandbox['#finished'] = 1;
  }
}

/**
 * Update the event_registration field type to add unique email field.
 */
function recurring_events_registration_update_8007() {
  $entity_type_manager = \Drupal::entityTypeManager();

  $storage = $entity_type_manager->getStorage('eventseries');
  $bundle_definition = $entity_type_manager->getDefinition('eventseries');

  $id_key = $bundle_definition->getKey('id');
  $revision_key = $bundle_definition->getKey('revision');

  $table_name = $storage->getDataTable() ?: $storage->getBaseTable();
  $revision_table_name = $storage->getRevisionDataTable() ?: $storage->getRevisionTable();

  $database = \Drupal::database();
  $definition_manager = \Drupal::entityDefinitionUpdateManager();

  // We need to grab all the current data for registration settings for an event
  // before we remove the registration field, before re-adding it with our new
  // unique email field.
  $reg_fields = [
    'event_registration__value',
    'event_registration__end_value',
    'event_registration__registration',
    'event_registration__registration_type',
    'event_registration__registration_dates',
    'event_registration__capacity',
    'event_registration__waitlist',
    'event_registration__instance_schedule_open',
    'event_registration__instance_schedule_open_amount',
    'event_registration__instance_schedule_open_units',
    'event_registration__instance_schedule_close',
    'event_registration__instance_schedule_close_amount',
    'event_registration__instance_schedule_close_units',
    'event_registration__instance_schedule_close_type',
  ];

  $registration_values = $database->select($table_name)
    ->fields($table_name, [$id_key, $revision_key] + $reg_fields)
    ->execute()
    ->fetchAll();

  // We need to NULL out all the current values, so that we can remove the field
  // without warning.
  $update_fields = array_fill_keys($reg_fields, NULL);
  $database->update($table_name)
    ->fields($update_fields)
    ->execute();

  // Remove the existing registration field.
  $field_storage_definition = $definition_manager->getFieldStorageDefinition('event_registration', 'eventseries');
  $definition_manager->uninstallFieldStorageDefinition($field_storage_definition);

  // Create a new instance of the registration field and install it.
  $storage_definition = BaseFieldDefinition::create('event_registration')
    ->setName('event_registration')
    ->setLabel(t('Event Registration'))
    ->setDescription('The event registration configuration.')
    ->setDisplayConfigurable('form', TRUE)
    ->setDisplayConfigurable('view', TRUE)
    ->setRevisionable(TRUE)
    ->setTranslatable(FALSE)
    ->setCardinality(1)
    ->setRequired(FALSE)
    ->setDisplayOptions('form', [
      'type' => 'event_registration',
      'weight' => 10,
    ]);

  \Drupal::entityDefinitionUpdateManager()
    ->installFieldStorageDefinition('event_registration', 'eventseries', 'eventseries', $storage_definition);

  // Restore previously stored values.
  if (!empty($registration_values)) {
    foreach ($registration_values as $value) {
      $values_to_restore = [
        $id_key => $value->{$id_key},
        $revision_key => $value->{$revision_key},
      ];
      foreach ($reg_fields as $field) {
        $values_to_restore[$field] = rtrim($value->{$field}, 's');
      }
      $values_to_restore['event_registration__unique_email_address'] = 0;
      $database->update($table_name)
        ->fields($values_to_restore)
        ->condition($id_key, $value->{$id_key})
        ->execute();

      $database->update($revision_table_name)
        ->fields($values_to_restore)
        ->condition($id_key, $value->{$id_key})
        ->execute();
    }
  }
}