<?php

use Acme\Dhl\Services\ShippingService;
use Acme\Dhl\Support\DhlClient;

function invokeParseAddressFields(array $address): array
{
    $service = new ShippingService(new DhlClient('https://example.test', null, null, null));

    $reflection = (new ReflectionClass(ShippingService::class))->getMethod('parseAddressFields');
    $reflection->setAccessible(true);

    return $reflection->invoke($service, $address);
}

it('keeps an explicit house number unchanged', function () {
    $address = invokeParseAddressFields([
        'street' => 'Musterstrasse',
        'houseNumber' => '42a',
    ]);

    expect($address['street'])->toBe('Musterstrasse')
        ->and($address['houseNumber'])->toBe('42a');
});

it('extracts the house number from a combined street field', function () {
    $address = invokeParseAddressFields([
        'street' => 'Musterstrasse 42a',
        'houseNumber' => '',
    ]);

    expect($address['street'])->toBe('Musterstrasse')
        ->and($address['houseNumber'])->toBe('42a');
});

it('throws when the street contains no parseable house number instead of defaulting to 1', function () {
    invokeParseAddressFields([
        'street' => 'Postfach',
        'houseNumber' => '',
    ]);
})->throws(InvalidArgumentException::class, 'Hausnummer fehlt');

it('does not throw when neither street nor house number are provided', function () {
    $address = invokeParseAddressFields([
        'street' => '',
        'houseNumber' => '',
    ]);

    expect($address)->toBe(['street' => '', 'houseNumber' => '']);
});