<?php

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

function invokeReturnsServiceConvert(string $method, $argument)
{
    $service = new ReturnsService(new DhlClient('https://example.test', null, null, null));

    $reflection = (new ReflectionClass(ReturnsService::class))->getMethod($method);
    $reflection->setAccessible(true);

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

it('converts known ISO-2 country codes to DHL ISO-3 via the resolver', function (string $input, string $expected) {
    expect(invokeReturnsServiceConvert('convertCountryCode', $input))->toBe($expected);
})->with([
    'germany' => ['DE', 'DEU'],
    'austria' => ['AT', 'AUT'],
    'switzerland' => ['CH', 'CHE'],
    'spain' => ['ES', 'ESP'],
    'germany lowercase' => ['de', 'DEU'],
    'germany already iso-3' => ['DEU', 'DEU'],
]);

it('throws on unsupported country codes instead of silently using DEU', function () {
    invokeReturnsServiceConvert('convertCountryCode', 'XX');
})->throws(InvalidArgumentException::class);

it('normalizes addresses back to ISO-2 via the resolver', function () {
    $converted = invokeReturnsServiceConvert('convertAddressFor2LetterCountry', [
        'name' => 'Test',
        'country' => 'AUT',
    ]);

    expect($converted['country'])->toBe('AT');
});

it('throws when normalizing an address with an unsupported country', function () {
    invokeReturnsServiceConvert('convertAddressFor2LetterCountry', ['country' => 'ZZ']);
})->throws(InvalidArgumentException::class);

it('keeps the address unchanged when the country key is missing', function () {
    $converted = invokeReturnsServiceConvert('convertAddressFor2LetterCountry', ['name' => 'Test']);

    expect($converted)->toBe(['name' => 'Test']);
});