<?php

declare(strict_types=1);

namespace App\Tests\Controller\Api;

use App\BusProNet\ApiClient;
use App\BusProNet\Model\BaseData;
use App\BusProNet\Model\Notification;
use App\BusProNet\Model\Room;
use App\Controller\Api\TravelController;
use App\Service\TravelDataProvider;
use PHPUnit\Framework\TestCase;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\Serializer\Encoder\JsonEncoder;
use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory;
use Symfony\Component\Serializer\Mapping\Loader\AttributeLoader;
use Symfony\Component\Serializer\Normalizer\DateTimeNormalizer;
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
use Symfony\Component\Serializer\Serializer;

class TravelControllerTest extends TestCase
{
    public function testHotelAvailabilityOnlySerializesApiGroupFields(): void
    {
        $room = new Room();
        $room->id = 1;
        $room->label = 'Doppelzimmer';
        $room->status = 'Frei';
        $room->available = 2;
        $room->price = 199.0;
        // booking-only fields that must NOT appear in the API response
        $room->dateFrom = new \DateTimeImmutable('2030-01-01');
        $room->totalCount = 42;
        $room->board = 'Halbpension';

        $apiClient = $this->createMock(ApiClient::class);
        $apiClient->expects($this->once())
            ->method('getHotelAvailability')
            ->willReturn(new BaseData([1 => $room]));

        $controller = new TravelController($apiClient, $this->createMock(TravelDataProvider::class));

        $classMetadataFactory = new ClassMetadataFactory(new AttributeLoader());
        $serializer = new Serializer(
            [new DateTimeNormalizer(), new ObjectNormalizer($classMetadataFactory)],
            [new JsonEncoder()],
        );
        $container = new Container();
        $container->set('serializer', $serializer);
        $controller->setContainer($container);

        $response = $controller->hotelAvailability(12345, 67890, new \DateTimeImmutable('2030-01-06'));
        $payload = json_decode((string) $response->getContent(), true, 512, JSON_THROW_ON_ERROR);

        $roomPayload = $payload['1'] ?? null;
        $this->assertNotNull($roomPayload);
        $this->assertSame('Frei', $roomPayload['status']);
        $this->assertArrayNotHasKey('dateFrom', $roomPayload);
        $this->assertArrayNotHasKey('totalCount', $roomPayload);
        $this->assertArrayNotHasKey('board', $roomPayload);
    }

    public function testHotelAvailabilityReturnsErrorPayloadForApiNotification(): void
    {
        $apiClient = $this->createMock(ApiClient::class);
        $apiClient->expects($this->once())
            ->method('getHotelAvailability')
            ->willReturn(new Notification(999, 'Hotel not found'));

        $controller = new TravelController($apiClient, $this->createMock(TravelDataProvider::class));

        $container = new Container();
        $container->set('serializer', new Serializer(
            [new ObjectNormalizer(new ClassMetadataFactory(new AttributeLoader()))],
            [new JsonEncoder()],
        ));
        $controller->setContainer($container);

        $response = $controller->hotelAvailability(12345, 67890, new \DateTimeImmutable('2030-01-06'));
        $payload = json_decode((string) $response->getContent(), true, 512, JSON_THROW_ON_ERROR);

        $this->assertSame(['error' => 'Hotel not found', 'type' => 'api_error'], $payload);
    }
}