<?php

declare(strict_types=1);

namespace DigiComp\FlowMaintenanceMode\AllowModules;

use Psr\Http\Message\ServerRequestInterface;

class ByCookieAllowModule implements AllowModuleInterface
{
    protected ?string $cookieName;
    protected ?string $cookieValue;

    /**
     * @param string|null $cookieName
     * @param string|null $cookieValue
     */
    public function __construct(?string $cookieName, ?string $cookieValue)
    {
        $this->cookieName = $cookieName;
        $this->cookieValue = $cookieValue;
    }

    public function isRequestAllowed(ServerRequestInterface $request): bool
    {
        $cookies = $request->getCookieParams();
        if ($this->cookieName === null || !isset($cookies[$this->cookieName])) {
            return false;
        }
        if ($this->cookieValue !== null && $cookies[$this->cookieName] !== $this->cookieValue) {
            return false;
        }
        return true;
    }
}