<?php

use Drupal\imageapi_optimize\Entity\ImageAPIOptimizePipeline;

/**
 * Gets an array of image pipelines suitable for using as select list options.
 *
 * @param $include_empty
 *   If TRUE a '- None -' option will be inserted in the options array.
 * @return
 *   Array of image pipelines both key and value are set to pipeline name.
 */
function imageapi_optimize_pipeline_options($include_empty = TRUE, $include_site_default = TRUE) {
  $pipelines = ImageAPIOptimizePipeline::loadMultiple();
  $options = array();
  if ($include_empty && !empty($pipelines)) {
    $options[''] = t('- None -');
  }
  if ($include_site_default && !empty($pipelines)) {
    if ($default_pipeline_name = \Drupal::config('imageapi_optimize.settings')->get('default_pipeline')) {
      if ($default_pipeline = ImageAPIOptimizePipeline::load($default_pipeline_name)) {
        $options['__default__'] = t('Sitewide default pipeline: @name', array('@name' => $default_pipeline->label()));
      }
    }
  }
  foreach ($pipelines as $name => $pipeline) {
    $options[$name] = $pipeline->label();
  }

  if (empty($options)) {
    $options[''] = t('No defined pipelines');
  }
  return $options;
}

/**
 * Implements hook_entity_type_alter().
 */
function imageapi_optimize_entity_type_alter(array &$entity_types) {
  /** @var $entity_types \Drupal\Core\Entity\EntityTypeInterface[] */
  if (isset($entity_types['image_style'])) {
    $image_style = $entity_types['image_style'];
    $image_style->setClass('Drupal\imageapi_optimize\Entity\ImageStyleWithPipeline');
    $image_style->setHandlerClass('list_builder', 'Drupal\imageapi_optimize\ImageStyleWithPipelineListBuilder');
    $config_export = $image_style->get('config_export');
    $config_export[] = 'pipeline';
    $image_style->set('config_export', $config_export);
  }
}

/**
 * Implements hook_config_schema_info_alter().
 */
function imageapi_optimize_config_schema_info_alter(&$definitions) {
  if (isset($definitions['image.style.*'])) {
    $definitions['image.style.*']['mapping']['pipeline']['type'] = 'string';
  }
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function imageapi_optimize_form_image_style_edit_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {
  $entity = $form_state->getFormObject()->getEntity();
  $form['pipeline'] = [
    '#type' => 'select',
    '#title' => t('Image Optimize Pipeline'),
    '#options' => imageapi_optimize_pipeline_options(),
    '#default_value' => $entity->getPipeline(),
    '#description' => t('Optionally select an Image Optimization pipeline which will be applied after all effects in this image style.'),
    '#weight' => 10,
  ];
}