<?php

/**
 * Implements hook_preprocess_views_view().
 */
function cdesai_emulsify_preprocess_views_view(&$vars) {
  // Add the view title to selected views.
  if (in_array($vars['id'], [
    'page_teaser_topic',
    'media_resources_tar',
    'events_by_series',
    'events_teaser_small',
    'news_teaser_small',
    'news_related_card',
  ])) {
    $vars['title'] = [
      '#markup' => $vars['view']->getTitle(),
    ];
  }

  // Add classes to the more link to selected views.
  if (in_array($vars['id'], [
    'events_teaser_small',
    'news_teaser_small',
    'media_resources_tar',
    'page_teaser_topic',
  ]) && !empty($vars['more'])) {
    $vars['more']['#options']['attributes']['class'][] = 'arrow-link';
    $vars['more']['#options']['attributes']['class'][] = 'view__more-link';
  }
  elseif (in_array($vars['id'], [
    'publication_teaser',
    'news_teaser',
    'news_related_card',
    'page_teaser',
  ]) && !empty($vars['more'])) {
    $vars['more']['#options']['attributes']['class'][] = 'button';
    $vars['more']['#options']['attributes']['class'][] = 'button--secondary';
  }
}

/**
 * Implements hook_preprocess_views_view__HOOK().
 */
function cdesai_emulsify_preprocess_views_view__events_by_series(&$vars) {
  if (!empty($vars['attachment_before']) &&
    !empty($vars['attachment_before'][0])
  ) {
    $attachment_before = $vars['attachment_before'][0]['#view'];
    $vars['attachment_before_rows'] = $attachment_before->total_rows;
  }
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function cdesai_emulsify_form_views_exposed_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $formState) {
  // Group start and end date within a fieldset.
  if (!empty($form['#id']) &&
    in_array($form['#id'], ['views-exposed-form-news-teaser-list-search-news']) &&
    !empty($form['published_date'])
  ) {
    $published_date_range = [
      '#type' => 'fieldset',
      '#name' => 'published_date_range',
      '#title' => t('Published Date'),
      'published_date' => $form['published_date'],
    ];
    // Since the order of the displayed exposed form options more or less
    // follows the array order, insert the new fieldset next to the start date.
    $published_date_index = array_search('published_date', array_keys($form));
    $form = array_merge(
      array_slice($form, 0, $published_date_index),
      ['published_date_range' => $published_date_range],
      array_slice($form, $published_date_index)
    );
    unset($form['published_date']);
  }
}

/**
 * Implements hook_preprocess_views_exposed_form
 */
function cdesai_emulsify_preprocess_views_exposed_form(&$vars) {
  $form = &$vars['form'];
  if (!empty($form['published_date_range'])) {
    // Views doesn't add labels to exposed form elements until the preprocess
    // function, so we do the same thing here for elements moved into a fieldset.
    // @see template_preprocess_views_exposed_form
    $form['published_date_range']['published_date']['min']['#title'] = t('Start');
    $form['published_date_range']['published_date']['max']['#title'] = t('End');
  }
}