<?php

/**
 * @file
 * Contains \Drupal\Console\Utils\Generate\Base.
 */

namespace Drupal\Console\Utils\Create;

use Drupal\Component\Utility\Random;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\field\FieldConfigInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Entity\EntityFieldManagerInterface;
use Drupal\Core\Datetime\DateFormatterInterface;

/**
 * Class ContentNode
 *
 * @package Drupal\Console\Utils
 */
abstract class Base
{
    /* @var EntityTypeManagerInterface */
    protected $entityTypeManager = null;

    /* @var EntityFieldManagerInterface */
    protected $entityFieldManager = null;

    /* @var DateFormatterInterface */
    protected $dateFormatter = null;

    /* @var array */
    protected $users = [];

    /* @var Random $random */
    protected $random = null;

    /**
     * ContentNode constructor.
     *
     * @param EntityTypeManagerInterface  $entityTypeManager
     * @param EntityFieldManagerInterface $entityFieldManager
     * @param DateFormatterInterface      $dateFormatter
     */
    public function __construct(
        EntityTypeManagerInterface $entityTypeManager,
        EntityFieldManagerInterface $entityFieldManager,
        DateFormatterInterface $dateFormatter
    ) {
        $this->entityTypeManager = $entityTypeManager;
        $this->entityFieldManager = $entityFieldManager;
        $this->dateFormatter = $dateFormatter;
    }

    /**
     * @param $entity
     * @return array
     */
    private function getFields($entity)
    {
        $entityTypeId = $entity->getEntityType()->id();
        $bundle = $entity->bundle();

        $fields = array_filter(
            $this->entityFieldManager->getFieldDefinitions($entityTypeId, $bundle), function ($fieldDefinition) {
                return $fieldDefinition instanceof FieldConfigInterface;
            }
        );

        return $fields;
    }

    /**
     * @param
     * @param $entity
     */
    protected function generateFieldSampleData($entity)
    {
        $fields = $this->getFields($entity);

        /* @var \Drupal\field\FieldConfigInterface[] $fields */
        foreach ($fields as $field) {
            $fieldName = $field->getFieldStorageDefinition()->getName();
            $cardinality = $field->getFieldStorageDefinition()->getCardinality(
            );
            if ($cardinality == FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED) {
                $cardinality = rand(1, 5);
            }

            $entity->$fieldName->generateSampleItems($cardinality);
        }
    }

    /**
     * Returns the random data generator.
     *
     * @return \Drupal\Component\Utility\Random
     *   The random data generator.
     */
    protected function getRandom()
    {
        if (!$this->random) {
            $this->random = new Random();
        }

        return $this->random;
    }

    /**
     * Retrieve a random Uid of enabled users.
     *
     * @return array
     */
    protected function getUserId()
    {
        if (!$this->users) {
            $userStorage = $this->entityTypeManager->getStorage('user');

            $this->users = $userStorage->loadByProperties(['status' => true]);
        }

        return array_rand($this->users);
    }
}