<?php

namespace App\Controller;

use App\Entity\GatewayTransaction;
use App\Ramcar\TransactionStatus;
use Doctrine\ORM\EntityManagerInterface;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class PayMongoController extends Controller
{
    protected $em;

    public function __construct(EntityManagerInterface $em)
    {
        $this->em = $em;
    }

    public function listen(Request $req)
    {
        $payload = json_decode($req->getContent(), true);

        // DEBUG
        @file_put_contents(__DIR__ . '/../../var/log/paymongo.log', print_r($payload, true) . "\r\n----------------------------------------\r\n\r\n", FILE_APPEND);

        /*
        return $this->json([
            'success' => true,
        ]);
        */
        
        // END DEBUG

        // get event type and process accordingly
        $attr = $payload['data']['attributes'];
        $event = $attr['data'];
        $event_name = $attr['type'];

        switch ($event_name) {
            case "payment.paid":
                return $this->handlePaymentPaid($event);
                break;
            case "payment.failed":
                return $this->handlePaymentPaid($event);
                break;
            case "payment.refunded": // TODO: handle refunds
            case "payment.refund.updated":
            case "checkout_session.payment.paid":
            default:
                break;
        }

        return $this->json([
            'success' => true,
        ]);
    }

    protected function handlePaymentPaid($event)
    {
        $metadata = $event['attributes']['metadata'];
        $obj = $this->getTransaction($metadata['transaction_id']);

        // mark as paid
        $obj->setStatus(TransactionStatus::PAID);
        $this->em->flush();

        return $this->json([
            'success' => true,
        ]);
    }

    protected function handlePaymentFailed(Request $req)
    {
        // TODO: do something about failed payments?
        return $this->json([
            'success' => true,
        ]);
    }

    protected function getTransaction($id)
    {
        //$class_name = 'App\\Entity\\' . $type;
        //$instance = new $class_name;

        return $this->em->getRepository(GatewayTransaction::class)->find($id);
    }

    public function paymentSuccess(Request $req)
    {
        return $this->render('paymongo/success.html.twig');
    }

    public function paymentCancelled(Request $req)
    {
        return $this->render('paymongo/cancelled.html.twig');
    }
}