<?php

use App\Services\Billing\InvoiceDocument;

/**
 * The issuer's own VAT number is labelled.
 *
 * It was printed bare, between the register number and the court, on every page of
 * every invoice. The document was valid — the reverse-charge note is printed and
 * the RECIPIENT's number is labelled — but an auditor scanning for "UID" found the
 * recipient's and not ours, so the one number an Austrian invoice is legally
 * worthless without read as a reference of some kind.
 */
$issuer = [
    'name' => 'CluPilot Cloud e.U.',
    'address' => 'Dreherstraße 66/1/8',
    'postcode' => '1110',
    'city' => 'Wien',
    'register_number' => 'FN 123456a',
    'register_court' => 'Handelsgericht Wien',
    'vat_id' => 'ATU00000000',
];

it('labels the issuer VAT number, and only that one', function () use ($issuer) {
    $columns = InvoiceDocument::footerColumns($issuer, 'UID');

    expect($columns[2])->toBe([
        // Its neighbours stay as they are: a Firmenbuch number and a court name
        // announce themselves, an ATU string does not.
        'FN 123456a',
        'UID: ATU00000000',
        'Handelsgericht Wien',
    ]);
});

it('leaves out the line entirely when no VAT number is recorded', function () use ($issuer) {
    // A label with nothing after it is worse than the bare number was. The company
    // details are required before an invoice can be issued at all, so this is the
    // half-configured installation rather than a document anybody receives.
    $columns = InvoiceDocument::footerColumns(['vat_id' => ''] + $issuer, 'UID');

    expect($columns[2])->toBe(['FN 123456a', 'Handelsgericht Wien']);
});

it('drops empty details rather than leaving gaps where they would be', function () {
    $columns = InvoiceDocument::footerColumns(['name' => 'Nur ein Name']);

    expect($columns[0])->toBe(['Nur ein Name'])
        ->and($columns[1])->toBe([])
        ->and($columns[3])->toBe([]);
});