<?php

use League\Csv\Writer;

/**
 * @file
 */

/**
 * Implements hook_requirements().
 *
 * @param $phase
 *
 * @return array
 */
function csv_serialization_requirements($phase) {
  $requirements = [];
  if ($phase === 'install') {
    if (!class_exists(Writer::class)) {
      $requirements['league_csv'] = [
        'description' => t('CSV Serialization requires the League\Csv library.'),
        'severity' => REQUIREMENT_ERROR,
      ];
    }
  }
  return $requirements;
}