<?php

declare(strict_types=1);

namespace App\Core;


final class MapovyPodklad
{
    public const COOKIE = 'mapovyPodklad';

    public const OSM = 'osm';

    public const MAPYCZ = 'mapycz';

    public const MAPYCZ_LETECKA = 'mapycz-letecka';

    public const VYCHOZI = self::OSM;

    /**
     * @return array<string, string>
     */
    public static function moznosti(): array
    {
        return [
            self::OSM => 'OpenStreetMap',
            self::MAPYCZ => 'Mapy.cz',
            self::MAPYCZ_LETECKA => 'Mapy.cz (letecká)',
        ];
    }

    public static function platny(?string $hodnota): string
    {
        return array_key_exists((string) $hodnota, self::moznosti())
            ? (string) $hodnota
            : self::VYCHOZI;
    }
}