<?php

declare(strict_types=1);

namespace MiniShop\Tests\Contract\Sales\v1;

use MiniShop\Contracts\Sales\V1\Event\OrderConfirmed;
use MiniShop\Invoicing\Application\Command\IssueInvoiceForExternalOrder;
use MiniShop\Invoicing\Application\Command\IssueInvoiceForExternalOrderHandler;
use MiniShop\Invoicing\Infrastructure\Persistence\InMemoryInvoiceRepository;
use MiniShop\Invoicing\Infrastructure\SequentialInvoiceNumberGenerator;
use MiniShop\Invoicing\Interfaces\Messaging\WhenOrderConfirmed;
use MiniShop\Shared\Technical\SystemClock;
use PHPUnit\Framework\TestCase;

/**
 * Test de compatibilite Conformist : Invoicing consomme sales.v1.OrderConfirmed
 * tel quel, sans traduction. Toute evolution du schema upstream doit rester
 * compatible avec ce consommateur.
 */
final class ConformistCompatibilityTest extends TestCase
{
    public function test_invoicing_can_consume_order_confirmed_v1(): void
    {
        $invoiceRepo = new InMemoryInvoiceRepository();
        $handler = new IssueInvoiceForExternalOrderHandler(
            $invoiceRepo,
            new SequentialInvoiceNumberGenerator(),
            new SystemClock(),
        );
        $consumer = new WhenOrderConfirmed($handler);

        $message = new OrderConfirmed(
            orderId: 'order-conformist-001',
            customerId: 'cust-001',
            totalInCents: 3000,
            currency: 'EUR',
            lines: [
                ['productName' => 'Widget', 'quantity' => 2, 'unitPriceInCents' => 1500, 'currency' => 'EUR'],
            ],
        );

        $consumer($message);

        $invoice = $invoiceRepo->findByExternalOrderId('order-conformist-001');
        self::assertNotNull($invoice, 'Invoicing (Conformist) must be able to consume sales.v1.OrderConfirmed.');
        self::assertSame('order-conformist-001', $invoice->externalOrderId);
        self::assertCount(1, $invoice->lines());
    }

    public function test_schema_backward_compatible_with_extra_fields(): void
    {
        // Simule un schema upstream avec un champ supplementaire (retro-compatible)
        $json = '{"orderId":"order-002","customerId":"cust-002","totalInCents":5000,"currency":"EUR","lines":[{"productName":"Gadget","quantity":1,"unitPriceInCents":5000,"currency":"EUR"}],"newField":"ignored"}';
        $decoded = json_decode($json, true, flags: JSON_THROW_ON_ERROR);

        $message = new OrderConfirmed(
            orderId: $decoded['orderId'],
            customerId: $decoded['customerId'],
            totalInCents: $decoded['totalInCents'],
            currency: $decoded['currency'],
            lines: $decoded['lines'],
        );

        self::assertSame('order-002', $message->orderId);
        self::assertSame(5000, $message->totalInCents);
    }
}