<?php

/**
 * @file
 * Install, update and uninstall functions for the University of Cambridge installation profile.
 */

/**
 * Implements hook_install().
 *
 * Perform actions to set up the site for this profile.
 *
 * @see system_install()
 */
function cambridge_install() {
  require_once 'cambridge_base.inc';

  cambridge_base_install();

  // Force a main-menu link on Basic Pages.
  variable_set('menu_force_page', TRUE);

  // News articles shouldn't be promoted to front page.
  variable_set('node_options_news_article', array('status'));

  // Display date and author information on news articles.
  variable_set('node_submitted_news_article', TRUE);

  // News articles shouldn't be on a menu.
  variable_set('menu_options_news_article', array());

  $instances = array(
    array(
      'entity_type' => 'node',
      'bundle' => 'page',
      'field_name' => 'field_related_links',
      'label' => st('Related links'),
      'cardinality' => -1,
      'type' => 'field_related_links',
      'settings' => array(
        'title' => 'required',
      ),
      'display' => array(
        'default' => array(
          'label' => 'above',
          'type' => 'hidden',
        ),
        'teaser' => array(
          'label' => 'hidden',
          'type' => 'hidden',
        ),
      ),
    ),
  );

  foreach ($instances as $instance) {
    field_create_instance($instance);
  }

  // Use the Smart Trim module for teasers.

  $smart_trimmed = array(
    'label' => 'hidden',
    'module' => 'smart_trim',
    'settings' => array(
      'more_link' => 0,
      'more_text' => 'Read more',
      'summary_handler' => 'full',
      'trim_length' => 325,
      'trim_options' => array(
        'text' => 'text',
      ),
      'trim_suffix' => '...',
      'trim_type' => 'chars',
    ),
    'type' => 'smart_trim_format',
    'weight' => 0,
  );

  foreach (array('page', 'link') as $type) {
    $instance = field_info_instance('node', 'body', $type);

    foreach (array('teaser', 'news_listing_item', 'vertical_teaser', 'sidebar_teaser') as $mode) {
      $instance['display'][$mode] = $smart_trimmed;
    }

    field_update_instance($instance);
  }

  // Force a main-menu link on Basic Pages.
  variable_set('menu_force_page', TRUE);

  // Questions and Answers shouldn't be promoted to front page.
  variable_set('node_options_questions_and_answers', array('status'));

  // Questions and Answers shouldn't show date and author information.
  variable_set('node_submitted_questions_and_answers', FALSE);

  // Force a main-menu link on Questions and Answers.
  variable_set('menu_force_questions_and_answers', TRUE);

  // Set sensible URL alias pattern defaults.

  variable_set('pathauto_node_pattern', '[node:title]');
  variable_set('pathauto_node_page_pattern', '[node:menu-link:parent:url:path]/[node:title]');
  variable_set('pathauto_node_link_pattern', 'link/[node:title]');
  variable_set('pathauto_node_news_article_pattern', 'news/[node:title]');
  variable_set('pathauto_node_questions_and_answers_pattern', '[node:menu-link:parent:url:path]/[node:title]');

  // Don't let Menu Trail By Path handle breadcrumbs.
  variable_set('menu_trail_by_path_breadcrumb_handling', FALSE);

  // Use the media module for image field instances.

  $instances = array(
    field_read_instance('node', 'field_image', 'page'),
    field_read_instance('node', 'field_image', 'link'),
  );

  foreach ($instances as $instance) {
    $instance['widget']['type'] = 'media_generic';
    $instance['widget']['module'] = 'media';

    field_update_instance($instance);
  }

  // Create a real name field for users.

  $field = array(
    'field_name' => 'field_user_name',
    'label' => st('Name'),
    'cardinality' => 1,
    'type' => 'text',
    'settings' => array(
      'max_length' => 255,
    ),
  );

  field_create_field($field);

  $instance = array(
    'entity_type' => 'user',
    'bundle' => 'user',
    'field_name' => 'field_user_name',
    'label' => st('Name'),
    'description' => st('The user\'s real name.'),
    'required' => 1,
    'cardinality' => 1,
    'type' => 'field_user_name',
    'settings' => array(
      'size' => 60,
      'text_processing' => 0,
      'user_register_form' => 1,
    ),
    'widget' => array(
      'weight' => -11,
    ),
    'display' => array(
      'default' => array(
        'label' => 'inline',
        'type' => 'text_plain',
        'weight' => 1,
      ),
      'teaser' => array(
        'label' => 'inline',
        'type' => 'text_plain',
        'weight' => 1,
      ),
    ),
  );

  field_create_instance($instance);

  variable_set('realname_pattern', '[user:field_user_name]');

  // Give the admin user a real name.

  db_insert('field_data_field_user_name')
    ->fields(
      array(
        'entity_type' => 'user',
        'bundle' => 'user',
        'deleted' => 0,
        'entity_id' => 1,
        'revision_id' => 1,
        'language' => 'und',
        'delta' => 0,
        'field_user_name_value' => 'Administrator',
        'field_user_name_format' => NULL,
      )
    )
    ->execute();

  db_insert('field_revision_field_user_name')
    ->fields(
      array(
        'entity_type' => 'user',
        'bundle' => 'user',
        'deleted' => 0,
        'entity_id' => 1,
        'revision_id' => 1,
        'language' => 'und',
        'delta' => 0,
        'field_user_name_value' => 'Administrator',
        'field_user_name_format' => NULL,
      )
    )
    ->execute();

  // Transliterate Pathauto aliases.

  variable_set('pathauto_transliterate', 1);

  // Set CKEditor settings.

  $settings = db_select('ckeditor_settings', 's')
    ->fields('s', array('settings'))
    ->condition('name', 'CKEditor Global Profile')
    ->execute()
    ->fetchField();

  $settings = unserialize($settings);

  // Set path to CKEditor library.
  $settings['ckeditor_path'] = '%b/profiles/cambridge/libraries/ckeditor';

  db_update('ckeditor_settings')
    ->fields(array('settings' => serialize($settings)))
    ->condition('name', 'CKEditor Global Profile')
    ->execute();

  $profiles = db_select('ckeditor_settings', 's')
    ->fields('s')
    ->condition('name', array('Advanced', 'Full'), 'IN')
    ->execute()
    ->fetchAllAssoc('name');

  foreach ($profiles as $name => $profile) {
    $settings = unserialize($profile->settings);

    // Set language to English (United Kingdom).
    $settings['lang'] = 'en-uk';

    // Turn off Advanced Content Filter.
    $settings['js_conf'] = 'config.allowedContent = true;';

    $plugins = ckeditor_load_plugins();

    // Enable CKEditor Link plugin.
    $settings['loadPlugins']['ckeditor_link'] = $plugins['ckeditor_link'];

    db_update('ckeditor_settings')
      ->fields(array('settings' => serialize($settings)))
      ->condition('name', $name)
      ->execute();
  }

  // Add the CKEditor Link filter.
  foreach (array('filtered_html', 'full_html') as $format_name) {
    $format = filter_format_load($format_name);
    $format->filters = filter_list_format($format_name);
    foreach ($format->filters as $key => $filter) {
      $format->filters[$key] = (array) $filter;
    }
    $format->filters['ckeditor_link_filter']['status'] = 1;
    filter_format_save($format);
  }
  filter_formats_reset();

  // Fix usernames in emails
  cambridge_update_7101();
}

/**
 * Set up the Menu Trail By Path module.
 */
function cambridge_update_7100() {
  if (module_exists('menu_trail_by_path') || module_exists('menu_position')) {
    return;
  }

  $result = module_enable(array('menu_trail_by_path'));

  if (!$result) {
    throw new DrupalUpdateException('Failed to enabled Menu Trail By Path module');
  }

  variable_set('menu_trail_by_path_breadcrumb_handling', FALSE);
}

/**
 * Stop names appearing where usernames should in emails.
 *
 * See https://drupal.org/node/1827980
 */
function cambridge_update_7101() {
  global $conf;

  if (FALSE === module_exists('realname')) {
    return;
  }

  $emails = array('register_admin_created_body', 'register_no_approval_required_body', 'status_activated_body');

  foreach ($emails as $email) {
    $key = 'user_mail_' . $email;

    $current_variable = variable_get($key);
    $conf[$key] = FALSE; // temporarily hide a customised message
    $default_message = _user_mail_text($email, NULL, array(), FALSE); // find the default
    $conf[$key] = $current_variable; // revert back

    $current_message = _user_mail_text($email, NULL, array(), FALSE); // find the current

    $current_message = preg_replace('~\R~u', "\n", $current_message); // normalise line endings

    if ($current_message === $default_message) {
      // only change cases where the message is still Drupal's default

      $new_message = str_replace('username: [user:name]', 'username: [user:name-raw]', $default_message);

      variable_set($key, $new_message);
    }
  }
}

/**
 * Enable Metatag modules.
 */
function cambridge_update_7102() {
  if (module_exists('metatag') || module_exists('metatags_quick') || module_exists('opengraph_meta')) {
    return;
  }

  $result = module_enable(array('metatag', 'metatag_dc', 'metatag_views'));

  if (!$result) {
    throw new DrupalUpdateException('Failed to enabled Metatag modules');
  }
}

/**
 * Use the Smart Trim module for teasers rather than Drupal's native trimming.
 */
function cambridge_update_7103() {
  if (module_exists('smart_trim')) {
    return;
  }

  if (FALSE === module_enable(array('smart_trim'))) {
    throw new DrupalUpdateException('Failed to install Smart Trim module');
  }

  $smart_trimmed = array(
    'label' => 'hidden',
    'module' => 'smart_trim',
    'settings' => array(
      'more_link' => 0,
      'more_text' => 'Read more',
      'summary_handler' => 'full',
      'trim_length' => 325,
      'trim_options' => array(
        'text' => 'text',
      ),
      'trim_suffix' => '...',
      'trim_type' => 'chars',
    ),
    'type' => 'smart_trim_format',
  );

  foreach (array('page', 'link') as $type) {
    // Make sure the body appears trimmed in teasers.

    if (FALSE === node_type_get_name($type)) {
      // Content type no longer exists.
      continue;
    }

    $instance = field_info_instance('node', 'body', $type);

    foreach (array('teaser', 'news_listing_item', 'vertical_teaser', 'sidebar_teaser') as $mode) {
      if (
        $instance['display'][$mode]['label'] !== 'hidden'
        ||
        $instance['display'][$mode]['type'] !== 'text_summary_or_trimmed'
        ||
        $instance['display'][$mode]['settings']['trim_length'] !== 600
      ) {
        // Display has been changed, so don't touch it.
        continue;
      }

      $instance['display'][$mode] = array_merge($instance['display'][$mode], $smart_trimmed);
    }

    field_update_instance($instance);
  }
}

/**
 * Set up Focus On teasers.
 */
function cambridge_update_7104() {
  require_once 'cambridge_base.inc';

  cambridge_base_set_up_focus_on_teasers();
}

/**
 * Enable the Pathauto Persistent State module.
 */
function cambridge_update_7105() {
  if (module_exists('pathauto_persist') || FALSE === module_exists('pathauto')) {
    return;
  }

  if (FALSE === module_enable(array('pathauto_persist'))) {
    throw new DrupalUpdateException('Failed to install Pathauto Persistent State module');
  }
}

/**
 * Enable the CKEditor Link module
 */
function cambridge_update_7106() {
  if (module_exists('ckeditor_link') || FALSE === module_exists('ckeditor')) {
    return;
  }

  if (FALSE === module_enable(array('ckeditor_link'))) {
    throw new DrupalUpdateException('Failed to install CKEditor link module');
  }

  $profiles = db_select('ckeditor_settings', 's')
    ->fields('s')
    ->condition('name', array('Advanced', 'Full'), 'IN')
    ->execute()
    ->fetchAllAssoc('name');

  if (0 === count($profiles)) {
    // Profiles have changed.
    return;
  }

  foreach ($profiles as $name => $profile) {
    $settings = unserialize($profile->settings);

    $plugins = ckeditor_load_plugins();

    // Enable CKEditor Link plugin.
    $settings['loadPlugins']['ckeditor_link'] = $plugins['ckeditor_link'];

    db_update('ckeditor_settings')
      ->fields(array('settings' => serialize($settings)))
      ->condition('name', $name)
      ->execute();
  }

  // Add the CKEditor Link filter.
  foreach (array('filtered_html', 'full_html') as $format_name) {
    $format = filter_format_load($format_name);
    if (FALSE === $format) {
      // Text format no longer exists.
      continue;
    }
    $format->filters = filter_list_format($format_name);
    foreach ($format->filters as $key => $filter) {
      $format->filters[$key] = (array) $filter;
    }
    $format->filters['ckeditor_link_filter']['status'] = 1;
    filter_format_save($format);
  }
  filter_formats_reset();
}

/**
 * Set date formats to UK style.
 */
function cambridge_update_7107() {
  require_once 'cambridge_base.inc';

  cambridge_base_set_up_date_formats();
}