<?php

namespace Drupal\dgi_fixity;

use Drupal\Core\Datetime\DateFormatterInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityListBuilder;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Render\RendererInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a listing of fixity check items.
 */
class FixityCheckListBuilder extends EntityListBuilder {

  /**
   * The date formatter service.
   *
   * @var \Drupal\Core\Datetime\DateFormatterInterface
   */
  protected $dateFormatter;

  /**
   * The renderer service.
   *
   * @var \Drupal\Core\Render\RendererInterface
   */
  protected $renderer;

  /**
   * Constructs a new FixityCheckListBuilder object.
   *
   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
   *   The entity type definition.
   * @param \Drupal\Core\Entity\EntityStorageInterface $storage
   *   The entity storage class.
   * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
   *   The date formatter service.
   * @param \Drupal\Core\Render\RendererInterface $renderer
   *   The renderer service.
   */
  public function __construct(EntityTypeInterface $entity_type, EntityStorageInterface $storage, DateFormatterInterface $date_formatter, RendererInterface $renderer) {
    parent::__construct($entity_type, $storage);
    $this->dateFormatter = $date_formatter;
    $this->renderer = $renderer;
  }

  /**
   * {@inheritdoc}
   */
  public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
    $entity_type_manager = $container->get('entity_type.manager');
    return new static(
      $entity_type,
      $entity_type_manager->getStorage($entity_type->id()),
      $container->get('date.formatter'),
      $container->get('renderer'),
    );
  }

  /**
   * {@inheritdoc}
   */
  public function buildHeader() {
    $header = [];
    $header += [
      'link' => [
        'data' => $this->t('Check'),
      ],
      'state' => [
        'data' => $this->t('State'),
      ],
      'performed' => [
        'data' => $this->t('Performed'),
      ],
    ];
    return $header + parent::buildHeader();
  }

  /**
   * {@inheritdoc}
   */
  public function buildRow(EntityInterface $entity) {
    /** @var \Drupal\dgi_fixity\FixityCheckInterface $entity */
    $row = [
      'link' => $entity->toLink(),
    ];

    $row['state']['data'] = $entity->state->view([
      'label' => 'hidden',
      'type' => 'dgi_fixity_state',
    ]);

    // Use timestamp rather than timestamp_ago to allow for caching.
    $row['performed']['data'] = $entity->wasPerformed() ?
      $entity->performed->view([
        'label' => 'hidden',
        'type' => 'timestamp',
        'weight' => 1,
      ]) :
      ['#markup' => $this->t('never')];

    return $row + parent::buildRow($entity);
  }

  /**
   * {@inheritdoc}
   */
  protected function getEntityIds() {
    $query = $this->getStorage()->getQuery()
      ->accessCheck(TRUE)
      ->sort('performed', 'DESC');

    // Only add the pager if a limit is specified.
    if ($this->limit) {
      $query->pager($this->limit);
    }
    return $query->execute();
  }

}