<?php

use App\Services\DhlProductResolver;

beforeEach(function () {
    config([
        'dhl.config_source' => 'env',
        'dhl.international_countries' => ['AT', 'ES'],
    ]);
});

it('resolves domestic DHL products for Germany', function () {
    $resolver = new DhlProductResolver;

    expect($resolver->resolveForShipment('DE', 'V62KP'))->toMatchArray([
        'country_code' => 'DE',
        'dhl_country_code' => 'DEU',
        'product_code' => 'V62KP',
    ]);
});

it('suggests international parcel for Austria and Spain', function (string $countryCode) {
    $resolver = new DhlProductResolver;

    expect($resolver->resolveProductCode($countryCode, null, 'V01PAK'))->toBe('V53PAK');
})->with([
    'austria' => 'AT',
    'spain' => 'ES',
]);

it('rejects unsupported destination countries', function () {
    (new DhlProductResolver)->resolveProductCode('FR', null, 'V01PAK');
})->throws(InvalidArgumentException::class, 'DHL-Versand in das Zielland FR ist aktuell nicht freigegeben.');

it('uses configured international destination countries', function () {
    $previousConfigSource = config('dhl.config_source');
    $previousCountries = config('dhl.international_countries');

    config([
        'dhl.config_source' => 'env',
        'dhl.international_countries' => ['AT', 'FR'],
    ]);

    try {
        $resolver = new DhlProductResolver;

        expect($resolver->resolveProductCode('FR', null, 'V01PAK'))->toBe('V53PAK')
            ->and($resolver->getProductSuggestionsByCountry())->toMatchArray([
                'DE' => 'V01PAK',
                'FR' => 'V53PAK',
            ]);
    } finally {
        config([
            'dhl.config_source' => $previousConfigSource,
            'dhl.international_countries' => $previousCountries,
        ]);
    }
});

it('normalizes configurable international countries', function () {
    expect(DhlProductResolver::normalizeCountryCodeList([' at ', 'DE', 'XX', 'FR', 'AT']))->toBe(['AT', 'FR']);
});

it('describes DHL product scope for preflight checks', function () {
    $resolver = new DhlProductResolver;

    expect($resolver->getProductScope('V01PAK'))->toBe('national')
        ->and($resolver->getProductScopeLabel('V01PAK'))->toBe('DHL Paket National')
        ->and($resolver->getProductScope('V53PAK'))->toBe('international')
        ->and($resolver->getProductScopeLabel('V53PAK'))->toBe('DHL Paket International');
});

it('rejects domestic products for international shipments when explicitly selected', function () {
    (new DhlProductResolver)->resolveProductCode('AT', 'V01PAK');
})->throws(InvalidArgumentException::class, 'Produkt V01PAK ist fuer DHL-Versand in das Zielland AT nicht erlaubt.');

it('does not fallback unknown countries to Germany', function () {
    (new DhlProductResolver)->toDhlCountryCode('XX');
})->throws(InvalidArgumentException::class, 'DHL-Laendercode XX wird nicht unterstuetzt.');

it('requires a billing number for the resolved product', function () {
    (new DhlProductResolver)->assertBillingNumber('V53PAK', null);
})->throws(InvalidArgumentException::class, 'Keine DHL-Abrechnungsnummer fuer Produkt V53PAK konfiguriert.');