<?php

/**
 * @file
 * Contains islandora.module.
 *
 * This file is part of the Islandora Project.
 *
 * (c) Islandora Foundation
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @author Diego Pino Navarro <dpino@metro.org> https://github.com/diegopino
 */

use Drupal\Core\Entity\EntityInterface;
use Drupal\islandora\ContextProvider\NodeContextProvider;
use Drupal\islandora\ContextProvider\MediaContextProvider;
use Drupal\islandora\ContextProvider\FileContextProvider;
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function islandora_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the islandora module.
    case 'help.page.islandora':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Islandora integrates Drupal with a Fedora repository.') . '</p>';
      return $output;

    default:
  }
}

/**
 * Implements hook_modules_installed().
 */
function islandora_modules_installed($modules) {
  // Ensure the auth and serialization formats we need are available.
  if (in_array('rest', $modules)) {
    $rest_resource_config_storage = \Drupal::service('entity_type.manager')->getStorage('rest_resource_config');
    $rest_resource_config = $rest_resource_config_storage->load('entity.node');

    if ($rest_resource_config) {
      $configuration = $rest_resource_config->get('configuration');

      if (!in_array('jsonld', $configuration['formats'])) {
        $configuration['formats'][] = 'jsonld';
      }

      if (!in_array('jwt_auth', $configuration['authentication'])) {
        $configuration['authentication'][] = 'jwt_auth';
      }

      $rest_resource_config->set('configuration', $configuration);
      $rest_resource_config->save(TRUE);
    }
  }
}

/**
 * Implements hook_rdf_namespaces().
 */
function islandora_rdf_namespaces() {
  // Yes, it's amazing, rdf is not registered by default!
  return [
    'ldp'  => 'http://www.w3.org/ns/ldp#',
    'dc11' => 'http://purl.org/dc/elements/1.1/',
    'nfo' => 'http://www.semanticdesktop.org/ontologies/2007/03/22/nfo/v1.1/',
    'ebucore' => 'http://www.ebu.ch/metadata/ontologies/ebucore/ebucore#',
    'fedora' => 'http://fedora.info/definitions/v4/repository#',
    'owl' => 'http://www.w3.org/2002/07/owl#',
    'ore' => 'http://www.openarchives.org/ore/terms/',
    'rdf' => 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
    'islandora' => 'http://islandora.ca/CLAW/',
    'pcdm' => 'http://pcdm.org/models#',
    'use' => 'http://pcdm.org/use#',
    'iana' => 'http://www.iana.org/assignments/relation/',
  ];
}

/**
 * Implements hook_entity_insert().
 */
function islandora_entity_insert(EntityInterface $entity) {
  switch ($entity->getEntityType()->id()) {
    case "node":
      $provider = new NodeContextProvider($entity);
      break;

    case "media":
      $provider = new MediaContextProvider($entity);
      break;

    case "file":
      $provider = new FileContextProvider($entity);
      break;

    default:
      $provider = NULL;
      break;
  }

  if ($provider) {
    $context_manager = \Drupal::service('context.manager');
    $provided = $provider->getRuntimeContexts([]);
    $context_manager->evaluateContexts($provided);

    foreach ($context_manager->getActiveReactions('index') as $reaction) {
      $reaction->execute($entity);
    }
  }
}

/**
 * Implements hook_entity_update().
 */
function islandora_entity_update(EntityInterface $entity) {
  switch ($entity->getEntityType()->id()) {
    case "node":
      $provider = new NodeContextProvider($entity);
      break;

    case "media":
      $provider = new MediaContextProvider($entity);
      break;

    case "file":
      $provider = new FileContextProvider($entity);
      break;

    default:
      $provider = NULL;
      break;
  }

  if ($provider) {
    $context_manager = \Drupal::service('context.manager');
    $provided = $provider->getRuntimeContexts([]);
    $context_manager->evaluateContexts($provided);

    foreach ($context_manager->getActiveReactions('index') as $reaction) {
      $reaction->execute($entity);
    }
  }
}

/**
 * Implements hook_entity_delete().
 */
function islandora_entity_delete(EntityInterface $entity) {
  switch ($entity->getEntityType()->id()) {
    case "node":
      $provider = new NodeContextProvider($entity);
      break;

    case "media":
      $provider = new MediaContextProvider($entity);
      break;

    case "file":
      $provider = new FileContextProvider($entity);
      break;

    default:
      $provider = NULL;
      break;
  }

  if ($provider) {
    $context_manager = \Drupal::service('context.manager');
    $provided = $provider->getRuntimeContexts([]);
    $context_manager->evaluateContexts($provided);

    foreach ($context_manager->getActiveReactions('delete') as $reaction) {
      $reaction->execute($entity);
    }
  }
}

/**
 * Implements hook_jsonld_alter_normalized_array().
 */
function islandora_jsonld_alter_normalized_array(EntityInterface $entity, array &$normalized, array $context) {
  $context_manager = \Drupal::service('context.manager');
  foreach ($context_manager->getActiveReactions('\Drupal\islandora\ContextReaction\NormalizerAlterReaction') as $reaction) {
    $reaction->execute($entity, $normalized, $context);
  }
}