<?php

use App\Models\Country;
use App\Models\ShoppingOrder;
use App\Models\UserInvoice;
use App\Services\DatevReconciliationService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Tests\TestCase;

uses(TestCase::class, RefreshDatabase::class);

function makeChecklistCountry(): Country
{
    return Country::firstOrCreate(
        ['code' => 'DE'],
        [
            'phone' => '49', 'en' => 'Germany', 'de' => 'Deutschland', 'es' => 'Alemania',
            'fr' => 'Allemagne', 'it' => 'Germania', 'ru' => 'Германия',
        ]
    );
}

function makeChecklistOrder(string $lastName, float $gross): ShoppingOrder
{
    $country = makeChecklistCountry();

    $shoppingUserId = DB::table('shopping_users')->insertGetId([
        'auth_user_id' => 0,
        'member_id' => 0,
        'billing_firstname' => 'Test',
        'billing_lastname' => $lastName,
        'billing_email' => strtolower($lastName).'-'.uniqid('', true).'@example.com',
        'billing_country_id' => $country->id,
        'shipping_country_id' => $country->id,
        'wp_order_number' => 0,
        'created_at' => now(), 'updated_at' => now(),
    ]);

    $net = round($gross / 1.19, 2);

    return ShoppingOrder::forceCreate([
        'shopping_user_id' => $shoppingUserId,
        'auth_user_id' => 0,
        'member_id' => 0,
        'country_id' => $country->id,
        'user_shop_id' => 1,
        'total' => $gross,
        'total_shipping' => $gross,
        'tax_split' => ['19' => (string) round($gross - $net, 2)],
        'net_split' => ['19' => (string) $net],
    ]);
}

function makeChecklistInvoice(ShoppingOrder $order, string $number, string $date, array $overrides = []): UserInvoice
{
    return UserInvoice::forceCreate(array_merge([
        'shopping_order_id' => $order->id,
        'date' => $date,
        'month' => (int) date('n', strtotime($date)),
        'year' => (int) date('Y', strtotime($date)),
        'full_number' => $number,
        'number' => (int) substr($number, -5),
        'status' => 2,
    ], $overrides));
}

it('lists both invoices behind a duplicated invoice number with the counterpart named', function () {
    makeChecklistInvoice(makeChecklistOrder('Hoppe', 24.80), '202699100', '2026-08-11');
    makeChecklistInvoice(makeChecklistOrder('Kuhn', 144.90), '202699100', '2026-08-11');

    $rows = app(DatevReconciliationService::class)->build(8, 2026)
        ->where('kategorie', DatevReconciliationService::CATEGORY_DUPLICATE_NUMBER);

    expect($rows)->toHaveCount(2);

    $hoppe = $rows->firstWhere('name', 'Hoppe Test');
    expect($hoppe['betrag_brutto'])->toBe(24.80);
    expect($hoppe['hinweis'])->toContain('2× vergeben');
    expect($hoppe['hinweis'])->toContain('169,70');
    expect($hoppe['hinweis'])->toContain('Kuhn Test (144,90 €)');
});

it('flags an invoice refunded through the payment provider without a cancellation document', function () {
    $order = makeChecklistOrder('Matyjaszek', 113.40);
    makeChecklistInvoice($order, '202699200', '2026-08-05');

    DB::table('shopping_payments')->insert([
        'shopping_order_id' => $order->id,
        'clearingtype' => 'wlt',
        'reference' => 'ref-'.uniqid('', true),
        'identifier' => 'id-'.uniqid('', true),
        'txaction' => 'refund',
        'status' => 'success',
        'amount' => 11340,
        'currency' => 'EUR',
        'created_at' => '2026-08-05 10:00:00',
        'updated_at' => '2026-08-28 10:00:00',
    ]);

    $rows = app(DatevReconciliationService::class)->build(8, 2026)
        ->where('kategorie', DatevReconciliationService::CATEGORY_EXTERNAL_CANCELLATION);

    expect($rows)->toHaveCount(1);
    expect($rows->first()['belegnummer'])->toBe('202699200');
    expect($rows->first()['hinweis'])->toContain('28.08.2026');
    expect($rows->first()['hinweis'])->toContain('kein Stornobeleg');
});

it('points a cross-month cancellation at its original invoice and back', function () {
    $order = makeChecklistOrder('Ebner', 123.10);
    $original = makeChecklistInvoice($order, '202699300', '2026-08-24');
    $storno = makeChecklistInvoice($order, '202699301', '2026-09-25', [
        'status' => 12,
        'cancellation' => true,
    ]);

    $original->cancellation = true;
    $original->cancellation_id = $storno->id;
    $original->save();

    $service = app(DatevReconciliationService::class);

    $august = $service->build(8, 2026)
        ->where('kategorie', DatevReconciliationService::CATEGORY_CANCELLED_LATER);

    expect($august)->toHaveCount(1);
    expect($august->first()['hinweis'])->toContain('202699301');
    expect($august->first()['empfehlung'])->toContain('Stornomonat');

    $september = $service->build(9, 2026)
        ->where('kategorie', DatevReconciliationService::CATEGORY_CROSS_MONTH_CANCELLATION);

    expect($september)->toHaveCount(1);
    expect($september->first()['hinweis'])->toContain('202699300');
    expect($september->first()['hinweis'])->toContain('08/2026');
});

it('stays empty for a clean period', function () {
    makeChecklistInvoice(makeChecklistOrder('Sauber', 119.00), '202699400', '2026-08-15');

    expect(app(DatevReconciliationService::class)->build(8, 2026))->toBeEmpty();
});

it('renders the checklist as a quoted csv with a header row', function () {
    makeChecklistInvoice(makeChecklistOrder('Hoppe', 24.80), '202699100', '2026-08-11');
    makeChecklistInvoice(makeChecklistOrder('Kuhn', 144.90), '202699100', '2026-08-11');

    $csv = app(DatevReconciliationService::class)->buildCsv(8, 2026);

    expect($csv)->toStartWith("\xEF\xBB\xBF\"Kategorie\";\"Belegnummer\"");
    expect($csv)->toContain('"Doppelt vergebene Rechnungsnummer"');
    expect($csv)->toContain('"24,80"');
    expect(substr_count($csv, "\r\n"))->toBe(3);
});