<?php
declare(strict_types=1);

namespace Esun3d\LanguageUrlStoreResolver\Model;

use Magento\Framework\App\RequestInterface;

class MarketResolver
{
    /**
     * @var MarketCookie
     */
    private $marketCookie;

    /**
     * @var StoreCodeMapper
     */
    private $storeCodeMapper;

    public function __construct(MarketCookie $marketCookie, StoreCodeMapper $storeCodeMapper)
    {
        $this->marketCookie = $marketCookie;
        $this->storeCodeMapper = $storeCodeMapper;
    }

    public function resolve(RequestInterface $request): ?string
    {
        $requestMarket = $this->normalizeMarket($request->getParam('market'));
        if ($requestMarket !== null) {
            return $requestMarket;
        }

        $cookieMarket = $this->normalizeMarket($this->marketCookie->get());
        if ($cookieMarket !== null) {
            return $cookieMarket;
        }

        return null;
    }

    public function resolveForLanguage(RequestInterface $request, string $language): ?string
    {
        $requestMarket = $this->normalizeMarketForLanguage($request->getParam('market'), $language);
        if ($requestMarket !== null) {
            return $requestMarket;
        }

        $cookieMarket = $this->normalizeMarketForLanguage($this->marketCookie->get(), $language);
        if ($cookieMarket !== null) {
            return $cookieMarket;
        }

        return $this->storeCodeMapper->getDefaultStoreCodeForLanguage($language);
    }

    public function normalizeMarket($market): ?string
    {
        if (!is_scalar($market)) {
            return null;
        }

        $market = trim((string)$market);

        return $this->storeCodeMapper->isRealStoreCodeInScope($market) ? $market : null;
    }

    public function normalizeMarketForLanguage($market, string $language): ?string
    {
        $market = $this->normalizeMarket($market);
        if ($market === null) {
            return null;
        }

        return $this->storeCodeMapper->languageFromStoreCode($market) === strtolower($language) ? $market : null;
    }
}