<?php

namespace bff\validation\rules;

use DateTimeInterface;
use bff\validation\Rule;

/**
 * Date rule
 * @copyright Tamaranga
 */
class Date extends Rule
{
    /**
     * @var string
     */
    protected $format = 'Y-m-d';

    protected function defaults($params)
    {
        if (is_string($params)) {
            $params = ['format' => $params];
        }
        return $params;
    }

    /**
     * Set date format
     * @param string $format
     * @return bool
     */
    protected function setFormat($format): bool
    {
        if (empty($format) || ! is_string($format)) {
            return false;
        }
        $this->format = $this->replace['format'] = $format;

        return true;
    }

    /**
     * Set date format
     * @param string $format
     * @return static
     */
    public function format($format)
    {
        $this->setFormat($format);

        return $this;
    }

    public function check(&$value)
    {
        if ($value instanceof DateTimeInterface) {
            return true;
        }
        if (strtotime($value) === false) {
            return false;
        }
        return date_create_from_format('!' . $this->format, $value) !== false;
    }

    /**
     * Default message
     * @return string
     */
    public function defaultMessage(): string
    {
        return _t('error', "The [attribute] is not valid date format, '[format]' required");
    }
}