<?php
namespace EEPROM;

use Index\Http\HttpFx;
use Index\Http\HttpRequest;
use Index\Routing\IRouter;
use Index\Routing\IRouteHandler;
use Syokuhou\IConfig;

class RoutingContext {
    private HttpFx $router;

    public function __construct(private IConfig $config) {
        $this->router = new HttpFx;
        $this->router->use('/', $this->middleware(...));
    }

    private function middleware($response, $request) {
        $response->setPoweredBy('EEPROM');

        $origin = $request->getHeaderLine('Origin');

        if(!empty($origin)) {
            $originHost = parse_url($origin, PHP_URL_HOST);
            if(empty($originHost))
                return 403;

            if($originHost !== $request->getHeaderLine('Host')) {
                $allowedOrigins = $this->config->getArray('origins');

                if(!empty($allowedOrigins)) {
                    $originHost = strtolower($originHost);

                    if(!in_array($originHost, $allowedOrigins))
                        return 403;
                }
            }

            $response->setHeader('Access-Control-Allow-Origin', $origin);
            $response->setHeader('Vary', 'Origin');
        }
    }

    public function getRouter(): IRouter {
        return $this->router;
    }

    public function register(IRouteHandler $handler): void {
        $this->router->register($handler);
    }

    public function dispatch(?HttpRequest $request = null): void {
        $this->router->dispatch($request);
    }
}