<?php

/**
 * @file
 * Install, update and uninstall for Configuration of all common WCMS.
 */

use Drupal\Core\Config\FileStorage;
use Drupal\field\Entity\FieldConfig;
use Drupal\node\Entity\Node;
use Drupal\taxonomy\Entity\Term;
use Drupal\user\Entity\Role;
use Drupal\uw_cfg_common\UwPermissions\UwPermissions;
use Drupal\uw_cfg_common\UwRoles\UwRoles;
use Drupal\webform\WebformInterface;
use Symfony\Component\Yaml\Yaml;

/**
 * Implements hook_install().
 */
function uw_cfg_common_install() {

  // ISTWCMS-5865: this the attempt to fix features for our build.
  // Moving the actual installing of workflows to here, so that
  // we can include workflows as a dependency in our modules and
  // that it will allow new site installs.
  $name = 'workflows.workflow.uw_workflow';
  $path = \Drupal::service('extension.list.module')->getPath('uw_cfg_common') . '/config/custom/';
  $source = new FileStorage($path);
  $active_storage = \Drupal::service('config.storage');
  $active_storage->write($name, $source->read($name));

  // Get the role ids for UW roles.
  $uw_rids = UwRoles::getUwRoleIds();

  // Step through each of the rids and create
  // role and set permissions.
  foreach ($uw_rids as $uw_rid) {

    // Create the role.
    $role = Role::create(
      [
        'id' => $uw_rid,
        'label' => UwRoles::getUwRoleLabel($uw_rid),
      ]
    );
    $role->save();

    // Get the info about the role.
    $uw_role = UwRoles::getUwRole($uw_rid);

    // Set the permissions for the role.
    UwRoles::setUwPermissions($uw_role);
  }

  // Get the role ids for Drupal roles.
  $drupal_rids = UwRoles::getDrupalRoleIds();

  // Step through each of the Drupal roles and
  // set the permissions.
  foreach ($drupal_rids as $drupal_rid) {

    // Get the info about the role.
    $uw_role = UwRoles::getUwRole($drupal_rid);

    // Set the permissions for the role.
    UwRoles::setUwPermissions($uw_role);
  }
  // Build the access permissions array.
  $module_handler = \Drupal::service('module_handler');
  $module_path = $module_handler->getModule('uw_cfg_common')->getPath();
  $permissions_to_process = Yaml::parseFile($module_path . '/src/UwRoles/access_content_permissions.yml');
  UwPermissions::grantRevoke($permissions_to_process, 'grant');

  // Add terms to the vocabulary 'uw_vocab_audience'.
  $terms = [
    'Current students' => [
      'Current undergraduate students',
      'Current graduate students',
    ],
    'Future students' => [
      'Future undergraduate students',
      'Future graduate students',
    ],
    'Faculty' => 'Faculty',
    'Staff' => 'Staff',
    'Alumni' => 'Alumni',
    'Parents' => 'Parents',
    'Donors | Friends | Supporters' => 'Donors | Friends | Supporters',
    'Employers' => 'Employers',
    'International' => 'International',
    'Media' => 'Media',
  ];

  $weight = 0;
  foreach ($terms as $key => $term) {
    if (is_array($term)) {
      $parent = _uw_cfg_common_create_term($key, 'uw_vocab_audience', $weight, []);
      $childweight = 0;
      foreach ($term as $child) {
        _uw_cfg_common_create_term($child, 'uw_vocab_audience', $childweight, [$parent]);
        $childweight++;
      }
    }
    else {
      _uw_cfg_common_create_term($term, 'uw_vocab_audience', $weight, []);
    }
    $weight++;
  }
}

/**
 * @file
 * Contains various helper functions.
 */

/**
 * Helper function to create a taxonomy term programmatically.
 *
 * @code
 * // Create top level term
 * $term_id = _nodemaker_term_create('My Term', 'my_vocab', 0, []);
 *
 * // Create term with parent term with an id of 999
 * $term_id = _nodemaker_term_create('My Term', 'my_vocab', 0, [999]);
 * @endcode
 *
 * @param string $taxonomy_name
 *   - Term Name.
 * @param string $vocab_machine_name
 *   - System id of the vocabulary term will be added to.
 * @param string|int $weight
 *   - Taxonomy term weight.
 * @param array $parent_tid
 *   - Array of term ids to be assigned as parent.
 *
 * @return int|null
 *   - Returns the term id of the created term on success, null on failure.
 *
 * @throws \Drupal\Core\Entity\EntityStorageException
 */
function _uw_cfg_common_create_term($taxonomy_name, $vocab_machine_name, $weight, array $parent_tid = []) {

  // Create the taxonomy term.
  $new_term = Term::create([
    'name' => $taxonomy_name,
    'vid' => $vocab_machine_name,
    'parent' => $parent_tid,
    'weight' => $weight,
  ]);

  // Save the taxonomy term.
  $new_term->save();

  // Return the taxonomy term id.
  return $new_term->id();
}

/**
 * Implements hook_update_dependencies().
 */
function uw_cfg_common_update_dependencies() {
  $dependencies['uw_cfg_common'][8103] = [
    'uw_sites_all' => 8105,
  ];

  return $dependencies;
}

/**
 * Implements hook_update_N().
 */

/**
 * Update listing blocks items per page when needed.
 *
 * For listing blocks items per page, when default settings were used,
 * change to the original default number of items.
 */
function uw_cfg_common_update_8101() {

  // Block ids that need to be changed, and what the original default was.
  // For some reason, we didn't originally use the same number for everything.
  $block_ids = [
    'views_block:uw_view_blogs-blogs_listing_block' => 5,
    'views_block:uw_view_events-events_listing_block' => 10,
    'views_block:uw_view_news_items-news_items_listing_block' => 10,
  ];

  // Load all the nodes.
  $nodes = Node::loadMultiple();

  // Step through each node and set any that were using the default setting
  // to the number that was the default before this change.
  foreach ($nodes as $node) {

    // Flag to save the node, have this to save processing
    // time if we don't need to save the node after the checks.
    $save_node_flag = FALSE;

    // Load the layout and sections.
    $layout = $node->get('layout_builder__layout');
    $sections = $layout->getSections();

    // Step through each of the sections.
    foreach ($sections as $section) {

      // Load the components for the section.
      $components = $section->getComponents();

      // Step through each of the components.
      foreach ($components as $component) {

        // If this component is one that needs to be changed,
        // then check for setting and change if required.
        if (in_array($component->getPluginId(), array_keys($block_ids))) {

          // Load the config for the block.
          $configurations = $component->get('configuration');

          // If the config is set to "none", it needs to be changed to
          // be set to the number that was the old default value.
          if ($configurations['items_per_page'] == 'none') {
            // Change the config and save the component.
            $configurations['items_per_page'] = $block_ids[$component->getPluginId()];
            $component->setConfiguration($configurations);

            // Set the save node flag so that we know to
            // save this node as the last step in the loop.
            $save_node_flag = TRUE;
          }
        }
      }

      // If we need to save the node, then save it.
      if ($save_node_flag) {
        $node->save();
      }
    }

    // Load all the revisions for the node.
    $vids = \Drupal::service('entity_type.manager')->getStorage('node')->revisionIds($node);

    // Step through each revision, and check if we have to
    // change the settings for the listing blocks.
    foreach ($vids as $vid) {

      // Flag to see if we have to save the revision.
      $save_revision_flag = FALSE;

      // Load the revision node.
      $revision_node = \Drupal::service('entity_type.manager')->getStorage('node')->loadRevision($vid);

      // Comments from here down are the same as above.
      $layout = $revision_node->get('layout_builder__layout');
      $sections = $layout->getSections();

      foreach ($sections as $section) {

        $components = $section->getComponents();

        foreach ($components as $component) {

          if (in_array($component->getPluginId(), $block_ids)) {

            $configurations = $component->get('configuration');

            if (
              $configurations['items_per_page'] == 'none' ||
              $configurations['items_per_page'] == '5'
            ) {

              $configurations['items_per_page'] = '3';
              $component->setConfiguration($configurations);
              $save_revision_flag = TRUE;
            }
          }
        }
      }

      if ($save_revision_flag) {
        $revision_node->save();
      }
    }
  }
}

/**
 * Set draggable views permissions, since cd-update doesn't do it reliably.
 */
function uw_cfg_common_update_8102() {
  $roles = [
    'uw_role_content_author',
    'uw_role_content_editor',
    'uw_role_form_editor',
    'uw_role_form_results_access',
    'uw_role_site_manager',
    'uw_role_site_owner',
  ];
  foreach ($roles as $role_name) {
    $role_object = Role::load($role_name);
    $role_object->grantPermission('access draggableviews');
    $role_object->save();
  }
}

/**
 * Load config and assigns permissions to roles.
 *
 * Load quick_node_clone config.
 */
function uw_cfg_common_update_8103() {

  // Load config that is not being set properly by config distro update.
  $config_path = drupal_get_path('module', 'uw_cfg_common') . '/config/install';
  $source = new FileStorage($config_path);
  $config_storage = \Drupal::service('config.storage');
  $config_storage->write('quick_node_clone.settings', $source->read('quick_node_clone.settings'));

  // List of permissions needed to be applied to roles.
  $permissions = [
    'clone uw_ct_blog content',
    'clone uw_ct_catalog_item content',
    'clone uw_ct_contact content',
    'clone uw_ct_event content',
    'clone uw_ct_news_item content',
    'clone uw_ct_profile content',
    'clone uw_ct_sidebar content',
    'clone uw_ct_web_page content',
  ];

  // Roles that require updated permissions.
  $role_ids = [
    'uw_role_site_manager',
    'uw_role_content_editor',
    'uw_role_content_author',
  ];

  $roles = Role::loadMultiple($role_ids);

  // Grant all all roles.
  foreach ($permissions as $permission) {
    $roles['uw_role_site_manager']->grantPermission($permission);
    $roles['uw_role_content_editor']->grantPermission($permission);
    $roles['uw_role_content_author']->grantPermission($permission);
  }

  // Save role with new permissions.
  $roles['uw_role_site_manager']->save();
  $roles['uw_role_content_editor']->save();
  $roles['uw_role_content_author']->save();

}

/**
 * Give default access to Webforms that have no access to create submissions.
 */
function uw_cfg_common_update_8104() {
  $counter = 0;

  $webforms = \Drupal::entityTypeManager()->getStorage('webform')->loadMultiple();
  foreach ($webforms as $webform) {
    $access = $webform->getAccessRules();
    if (empty($access['create']['roles'])) {
      $access['create']['roles'] = [
        'anonymous',
        'authenticated',
      ];
      $webform->setAccessRules($access);
      $webform->save();
      $counter++;
    }
  }

  return t('Set default access for @counter Webforms.', ['@counter' => $counter]);
}

/**
 * Update the fields required for new media section.
 */
function uw_cfg_common_update_9101() {

  // The content types to get updated.
  $node_types = [
    'uw_ct_blog',
    'uw_ct_event',
    'uw_ct_news_item',
  ];

  // We need to a feature revert first, so tha the fields for
  // type of media are created.
  // Reverting uw_cfg_common first so that the fields get created.
  \Drupal::service('uw_cfg_common.features')->import(['uw_cfg_common']);

  // Revert the rest of the content types.
  \Drupal::service('uw_cfg_common.features')->import($node_types);

  // Step through each of the content types and update the field.
  foreach ($node_types as $node_type) {

    // Get all the nids of the content type.
    $nids = \Drupal::service('entity_type.manager')->getStorage('node')->getQuery()->condition('type', $node_type)->execute();

    // Step through each of the nids, get the node and check
    // if we have to update the field.
    foreach ($nids as $nid) {

      // Load the node.
      $node = \Drupal::service('entity_type.manager')->getStorage('node')->load($nid);

      // If there is a hero image, update the type of media field,
      // then save the node.
      if ($node->field_uw_hero_image->entity) {
        $node->set("field_uw_type_of_media", 'image');
        $node->save();
      }
    }
  }
}

/**
 * Set all Webforms to use the access denied page.
 */
function uw_cfg_common_update_9102() {
  $webforms = \Drupal::entityTypeManager()->getStorage('webform')->loadMultiple();
  foreach ($webforms as $webform) {
    // This is set as the default in uw_cfg_common_webform_create().
    $webform->setSetting('form_access_denied', WebformInterface::ACCESS_DENIED_PAGE);
    $webform->save();
  }
}

/**
 * Add Private content viewer role for the existing site.
 */
function uw_cfg_common_update_9103() {
  Role::create([
    'id' => 'uw_role_private_content_viewer',
    'label' => 'Private content viewer',
  ])->save();
}

/**
 * Removes missing blocks from temp storage and saved nodes (revisions too).
 */
function uw_cfg_common_update_9104(&$sandbox) {
  $service = \Drupal::service('uw_cfg_common.missing_blocks');
  $service->removeMissingBlocksFromUnsaved();
  $service->removeMissingBlocksFromSaved();
}

/**
 * Feature revert for workflows.
 */
function uw_cfg_common_update_9105(&$sandbox) {
  $name = 'workflows.workflow.uw_workflow';
  $path = \Drupal::service('extension.list.module')->getPath('uw_cfg_common') . '/config/custom/';
  $source = new FileStorage($path);
  $active_storage = \Drupal::service('config.storage');
  $active_storage->write($name, $source->read($name));
}

/**
 * Add new fields for banners above.
 */
function uw_cfg_common_update_9106(&$sandbox) {

  // The content types that are not getting any changes.
  $cts_not_to_install = [
    'uw_ct_sidebar',
    'uw_ct_site_footer',
    'uw_ct_expand_collapse_group',
  ];

  // The content types with media already in it (hero image).
  $cts_with_media = [
    'uw_ct_blog',
    'uw_ct_event',
    'uw_ct_news_item',
  ];

  // Get all the node types.
  $node_types = \Drupal::entityTypeManager()->getStorage('node_type')->loadMultiple();

  // Step through each node type and get the path to
  // the module and the machine name.
  foreach ($node_types as $node_type) {

    // Get the id from the node type.
    $id = $node_type->id();

    // Ensure we are only getting the node type
    // that need updating.
    if (!in_array($id, $cts_not_to_install)) {

      // Catalogs and opportunities have different paths
      // and ids, so setup the content types array with
      // the correct info.
      if ($id == 'uw_ct_catalog_item') {
        $content_types['uw_ct_catalog'] = $id;
      }
      elseif ($id == 'uw_ct_opportunity') {
        $content_types['uw_ct_opportunities'] = $id;
      }
      else {
        $content_types[$id] = $id;
      }
    }
  }

  // Get the type of media field that we need to udpate.
  $type_of_media = current(\Drupal::entityTypeManager()->getStorage('field_storage_config')->loadByProperties(['id' => 'node.field_uw_type_of_media']));

  // Get the type of media settings.
  $settings = $type_of_media->getSettings();

  // Update the settings to remove the allowed values and
  // add the allowed values function.
  $settings['allowed_values'] = [];
  $settings['allowed_values_function'] = '_uw_cfg_common_allowed_media_types';

  // Set the update settings.
  $type_of_media->setSettings($settings);

  // Save the field.
  $type_of_media->save();

  // The names of the fields we need to install.
  $names = [
    'field.storage.node.field_uw_banner',
    'field.storage.node.field_uw_media_width',
    'field.storage.node.field_uw_slide_speed',
    'field.storage.node.field_uw_transition_speed',
    'field.storage.node.field_uw_text_overlay_style',
  ];

  // Get the path to cfg common config install directory.
  $path = \Drupal::service('extension.list.module')->getPath('uw_cfg_common') . '/config/install/';
  $config_dir = new FileStorage($path);

  // Step through each of the field names and install them.
  foreach ($names as $name) {

    // Get the config from the yml file into an array.
    $config_record = $config_dir->read($name);

    // Get the entity type.
    $entity_type = \Drupal::service('config.manager')->getEntityTypeIdByName($name);

    // Get the storage.
    $storage = \Drupal::entityTypeManager()->getStorage($entity_type);

    // Create the new field from the converted yml.
    $field = $storage->createFromStorageRecord($config_record);

    // Save the new field.
    $field->save();
  }

  // Step through each of the content types and install the fields,
  // and also setup default values for the fields.
  foreach ($content_types as $path => $id) {

    // Get the path to the content type.
    $path = \Drupal::service('extension.list.module')->getPath($path) . '/config/install/';
    $config_dir = new FileStorage($path);

    // The names of the fields to install.
    $names = [
      'field.field.node.' . $id . '.field_uw_banner',
      'field.field.node.' . $id . '.field_uw_type_of_media',
      'field.field.node.' . $id . '.field_uw_media_width',
      'field.field.node.' . $id . '.field_uw_text_overlay_style',
      'field.field.node.' . $id . '.field_uw_transition_speed',
    ];

    // Step through each of the fields and install them.
    foreach ($names as $name) {

      // Get the config from the yml into an array.
      $config_record = $config_dir->read($name);

      // If the field config is not install, install it.
      if (!FieldConfig::loadByName(
        $config_record['entity_type'],
        $config_record['bundle'],
        $config_record['field_name'])
      ) {
        FieldConfig::create($config_record)->save();
      }
    }

    // If there is no media yet on the content type,
    // then install the type of hero image field.
    if (!in_array($id, $cts_with_media)) {

      // Name of the hero image field.
      $name = 'field.field.node.' . $id . '.field_uw_hero_image';

      // Get the config from the yml into an array.
      $config_record = $config_dir->read($name);

      // If the field config is not install, install it.
      if (!FieldConfig::loadByName($config_record['entity_type'], $config_record['bundle'], $config_record['field_name'])) {
        FieldConfig::create($config_record)->save();
      }
    }

    // Get all the nodes of the content type.
    $nodes = \Drupal::entityTypeManager()->getStorage('node')->loadByProperties(['type' => $id]);

    // Step through each of the nodes and set the default
    // values of the fields.
    foreach ($nodes as $node) {

      // Set default values for banners.
      $node->field_uw_banner = NULL;
      $node->field_uw_media_width = 'uw_lbs_full_width';
      $node->field_uw_slide_speed = 7000;
      $node->field_uw_transition_speed = 400;
      $node->field_uw_text_overlay_style = 'full-width';

      // If the content type does not have media yet,
      // set the default value for type of media.
      if (!in_array($id, $cts_with_media)) {
        $node->field_uw_type_of_media = NULL;
      }

      // Save the node.
      $node->save();
    }
  }
}