<?php

declare(strict_types=1);


namespace Internetgalerie\IgDatapoolFe\Property\TypeConverter;

use DateTime;
use TYPO3\CMS\Extbase\Error\Error;
use TYPO3\CMS\Extbase\Property\Exception\TypeConverterException;
use TYPO3\CMS\Extbase\Property\PropertyMappingConfigurationInterface;

/**
 * Converter which transforms from different input formats into DateTime objects.
 *
 * Source can be either a string or an array. The date string is expected to be formatted
 * according to DEFAULT_DATE_FORMAT.
 *
 * But the default date format can be overridden in the initialize*Action() method like this::
 *
 *  $this->arguments['<argumentName>']
 *    ->getPropertyMappingConfiguration()
 *    ->forProperty('<propertyName>') // this line can be skipped in order to specify the format for all properties
 *    ->setTypeConverterOption(\TYPO3\CMS\Extbase\Property\TypeConverter\DateTimeConverter::class, \TYPO3\CMS\Extbase\Property\TypeConverter\DateTimeConverter::CONFIGURATION_DATE_FORMAT, '<dateFormat>');
 *
 * If the source is of type array, it is possible to override the format in the source::
 *
 *  array(
 *   'date' => '<dateString>',
 *   'dateFormat' => '<dateFormat>'
 *  );
 *
 * By using an array as source you can also override time and timezone of the created DateTime object::
 *
 *  array(
 *   'date' => '<dateString>',
 *   'hour' => '<hour>', // integer
 *   'minute' => '<minute>', // integer
 *   'seconds' => '<seconds>', // integer
 *   'timezone' => '<timezone>', // string, see http://www.php.net/manual/timezones.php
 *  );
 *
 * As an alternative to providing the date as string, you might supply day, month and year as array items each::
 *
 *  array(
 *   'day' => '<day>', // integer
 *   'month' => '<month>', // integer
 *   'year' => '<year>', // integer
 *  );
 */
class DateTimeConverter extends \TYPO3\CMS\Extbase\Property\TypeConverter\DateTimeConverter
{
    /**
     * @var int
     */
    protected $priority = 11;


    /**
     * Converts $source to a \DateTime using the configured dateFormat
     *
     * @param string|int|array $source the string to be converted to a \DateTime object
     * @param string $targetType must be "DateTime"
     * @param array $convertedChildProperties not used currently
     * @param PropertyMappingConfigurationInterface $configuration
     * @return DateTime|Error|null
     * @throws TypeConverterException
     * @internal only to be used within Extbase, not part of TYPO3 Core API.
     */
    public function convertFrom($source, string $targetType, array $convertedChildProperties = [], PropertyMappingConfigurationInterface $configuration = null): ?DateTime
    {
        $dateFormat = $this->getDefaultDateFormat($configuration);
        $dateAsString = (string)($source['date'] ?? '');
        if (($dateFormat === 'Y-m-d\TH:i:s' || $dateFormat === 'Y-m-d\TH:i:sP')&& strlen($dateAsString) == 16) {
            $source['date'] .= ':00';
        }
        return parent::convertFrom($source, $targetType, $convertedChildProperties, $configuration);
    }

}
