<?php

declare(strict_types=1);

namespace MiniShop\Tests\Integration\Sales;

use MiniShop\Contracts\Sales\V1\Api\OrderView;
use MiniShop\Sales\Application\Command\PlaceOrder;
use MiniShop\Sales\Application\Command\PlaceOrderHandler;
use MiniShop\Sales\Application\Query\GetOrderById;
use MiniShop\Sales\Application\Query\GetOrderByIdHandler;
use MiniShop\Sales\Domain\Model\OrderLine;
use MiniShop\Sales\Interfaces\Http\Api\V1\OrderViewAssembler;
use MiniShop\Sales\Infrastructure\Persistence\InMemoryOrderRepository;
use MiniShop\Shared\Technical\SystemClock;
use PHPUnit\Framework\TestCase;

/**
 * Test de l'Open Host Service : verifie que l'API OHS expose uniquement
 * des DTOs du Published Language (OrderView) et jamais les modeles internes.
 */
final class OhsApiTest extends TestCase
{
    public function test_assembler_returns_order_view_contract(): void
    {
        $orderRepo = new InMemoryOrderRepository();
        $clock = new SystemClock();
        $assembler = new OrderViewAssembler();

        // Create a stub publisher that does nothing
        $publisher = new class implements \MiniShop\Sales\Application\Port\SalesEventPublisher {
            public function publishOrderPlaced(\MiniShop\Sales\Domain\Event\OrderPlaced $event): void {}
            public function publishOrderConfirmed(\MiniShop\Sales\Domain\Event\OrderConfirmed $event): void {}
            public function publishOrderCancelled(\MiniShop\Sales\Domain\Event\OrderCancelled $event): void {}
        };

        $placeHandler = new PlaceOrderHandler($orderRepo, $publisher, $clock);
        $getHandler = new GetOrderByIdHandler($orderRepo);

        $orderId = 'ohs-test-001';
        ($placeHandler)(new PlaceOrder(
            orderId: $orderId,
            customerId: 'cust-001',
            lines: [
                ['productName' => 'Widget', 'quantity' => 2, 'unitPriceInCents' => 1500, 'currency' => 'EUR'],
            ],
        ));

        $order = ($getHandler)(new GetOrderById($orderId));
        $view = $assembler->toView($order);

        // Verifie que le retour est un DTO du Published Language
        self::assertInstanceOf(OrderView::class, $view);
        self::assertSame($orderId, $view->orderId);
        self::assertSame('placed', $view->status);
        self::assertSame(3000, $view->totalInCents);
        self::assertSame('EUR', $view->currency);
        self::assertCount(1, $view->lines);
    }

    public function test_order_view_does_not_expose_internal_model(): void
    {
        $assembler = new OrderViewAssembler();
        $orderRepo = new InMemoryOrderRepository();
        $clock = new SystemClock();
        $publisher = new class implements \MiniShop\Sales\Application\Port\SalesEventPublisher {
            public function publishOrderPlaced(\MiniShop\Sales\Domain\Event\OrderPlaced $event): void {}
            public function publishOrderConfirmed(\MiniShop\Sales\Domain\Event\OrderConfirmed $event): void {}
            public function publishOrderCancelled(\MiniShop\Sales\Domain\Event\OrderCancelled $event): void {}
        };

        ($placeHandler = new PlaceOrderHandler($orderRepo, $publisher, $clock))(new PlaceOrder(
            orderId: 'ohs-test-002',
            customerId: 'cust-001',
            lines: [['productName' => 'Widget', 'quantity' => 1, 'unitPriceInCents' => 1000, 'currency' => 'EUR']],
        ));

        $order = (new GetOrderByIdHandler($orderRepo))(new GetOrderById('ohs-test-002'));
        $view = $assembler->toView($order);

        $json = json_encode($view, JSON_THROW_ON_ERROR);
        $decoded = json_decode($json, true, flags: JSON_THROW_ON_ERROR);

        // Le JSON ne doit contenir que les champs du Published Language
        $allowedKeys = ['orderId', 'customerId', 'status', 'totalInCents', 'currency', 'lines'];
        self::assertSame($allowedKeys, array_keys($decoded));

        // Les lignes ne doivent pas contenir de types internes (Money, OrderLine)
        $lineKeys = array_keys($decoded['lines'][0]);
        self::assertContains('productName', $lineKeys);
        self::assertContains('lineTotalInCents', $lineKeys);
        self::assertNotContains('unitPrice', $lineKeys); // pas d'objet Money
    }
}