<?php
declare(strict_types=1);

namespace MageSail\Magesail\Plugin\App\Request;

use Magento\Framework\App\Request\Http;
use Magento\Store\Model\StoreManager;

/**
 * When request has X-MageSail-Store-Code header or magesail_store query param (from tunnel proxy),
 * make getServerValue return it for MAGE_RUN_CODE and 'store' for MAGE_RUN_TYPE so Magento serves that store.
 */
class StoreFromMageSailHeaderPlugin
{
    private const HEADER_STORE_CODE = 'X-MageSail-Store-Code';
    private const QUERY_PARAM_STORE = 'magesail_store';

    /**
     * Around getServerValue: if MageSail store header is set, return it for MAGE_RUN_CODE / MAGE_RUN_TYPE.
     *
     * @param Http $subject
     * @param callable $proceed
     * @param string|null $name
     * @param mixed $default
     * @return mixed
     */
    public function aroundGetServerValue(Http $subject, callable $proceed, $name = null, $default = null)
    {
        $storeCode = $this->getStoreCodeFromRequest($subject);
        if ($storeCode === null) {
            return $proceed($name, $default);
        }
        if ($name === StoreManager::PARAM_RUN_CODE) {
            return $storeCode;
        }
        if ($name === StoreManager::PARAM_RUN_TYPE) {
            return 'store';
        }
        return $proceed($name, $default);
    }

    private function getStoreCodeFromRequest(Http $request): ?string
    {
        $value = $request->getParam(self::QUERY_PARAM_STORE);
        if ($value !== null && trim((string) $value) !== '') {
            return trim((string) $value);
        }
        $value = $request->getHeader(self::HEADER_STORE_CODE);
        if ($value !== false && $value !== null && trim((string) $value) !== '') {
            return trim((string) $value);
        }
        $value = $request->getServer('HTTP_X_MAGESAIL_STORE_CODE');
        if ($value !== null && $value !== '' && trim((string) $value) !== '') {
            return trim((string) $value);
        }
        return null;
    }
}