<?php

declare(strict_types = 1);

/**
 * This file is part of the 'Yasumi' package.
 *
 * The easy PHP Library for calculating holidays.
 *
 * Copyright (c) 2015 - 2026 AzuyaLabs
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @author Sacha Telgenhof <me at sachatelgenhof dot com>
 */

namespace Yasumi\Filters;

/**
 * OnFilter is a class used for filtering holidays based on a given date.
 *
 * Filters for all holidays that happen on the given date.
 *
 * Note: this class can be used separately, however is implemented by the AbstractProvider::on method.
 */
class OnFilter extends AbstractFilter
{
    private const DATE_FORMAT = 'Y-m-d';

    /** date to check for holidays */
    private readonly string $date;

    /**
     * Construct the On FilterIterator Object.
     *
     * @param \Iterator<string, \Yasumi\Holiday> $iterator Iterator object of the Holidays Provider
     * @param \DateTimeInterface                 $date     Start date of the time frame to check against
     */
    public function __construct(
        \Iterator $iterator,
        \DateTimeInterface $date,
    ) {
        parent::__construct($iterator);
        $this->date = $date->format(self::DATE_FORMAT);
    }

    public function accept(): bool
    {
        return $this->getInnerIterator()->current()->format(self::DATE_FORMAT) === $this->date;
    }
}
