<?php

use App\Exceptions\ManualPaymentException;
use App\Http\Requests\Payment\RecordManualPaymentRequest;
use App\Mail\MailCheckout;
use App\Models\PaymentTransaction;
use App\Models\ShippingCountry;
use App\Models\ShoppingOrder;
use App\Models\ShoppingPayment;
use App\Models\ShoppingUser;
use App\Models\UserShop;
use App\Services\ManualPaymentService;
use App\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Routing\Redirector;
use Illuminate\Support\Facades\Mail;
use Illuminate\Validation\ValidationException;
use Tests\TestCase;

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

beforeEach(function (): void {
    Mail::fake();
});

/**
 * Phase SE4 (dev/2026-08-26-stripe/): Zahlungseingang manuell erfassen.
 * Der reale Fall ist eine Vorkasse-Überweisung über PAYONE mit falschem
 * Verwendungszweck, die PAYONE nicht zuordnen kann.
 *
 * @return array{0: ShoppingOrder, 1: ShoppingPayment, 2: User}
 */
function manualPaymentBootstrap(array $paymentOverrides = [], array $orderOverrides = []): array
{
    $country = ShippingCountry::first() ?? ShippingCountry::create(['shipping_id' => 1, 'country_id' => 1]);

    $shopOwner = User::forceCreate([
        'email' => 'mp-owner-'.uniqid('', true).'@example.com',
        'password' => bcrypt('secret'),
        'lang' => 'de',
    ]);

    $admin = User::forceCreate([
        'email' => 'mp-admin-'.uniqid('', true).'@example.com',
        'password' => bcrypt('secret'),
        'lang' => 'de',
        'admin' => 3,
    ]);

    $userShop = UserShop::first() ?? UserShop::create([
        'user_id' => $shopOwner->id,
        'name' => 'Manual Shop',
        'slug' => 'mp-shop-'.uniqid(),
        'domain' => 'mp-test.local',
    ]);

    $shoppingUser = ShoppingUser::create([
        'auth_user_id' => $shopOwner->id,
        'billing_firstname' => 'Vorkasse',
        'billing_lastname' => 'Kunde',
        'billing_email' => 'mp-'.uniqid().'@example.com',
        'billing_country_id' => $country->id,
        'shipping_country_id' => $country->id,
    ]);

    $order = ShoppingOrder::create(array_merge([
        'shopping_user_id' => $shoppingUser->id,
        'auth_user_id' => $shopOwner->id,
        'country_id' => $country->id,
        'user_shop_id' => $userShop->id,
        'total' => 288.50,
        'paid' => false,
        'txaction' => 'appointed',
        'mode' => 'test',
    ], $orderOverrides));

    $payment = ShoppingPayment::create(array_merge([
        'shopping_order_id' => $order->id,
        'payment_provider' => 'payone',
        'clearingtype' => 'vor',
        'reference' => 'mp-ref-'.uniqid(),
        'amount' => 28850,
        'currency' => 'EUR',
        'mode' => 'test',
    ], $paymentOverrides));

    return [$order->fresh(), $payment, $admin];
}

/**
 * @return array{amount_cents: int, paid_at: string, method: string, bank_reference: string, note: string|null, send_mail: bool}
 */
function manualPaymentData(array $overrides = []): array
{
    return array_merge([
        'amount_cents' => 28850,
        'paid_at' => '2026-06-13',
        'method' => ManualPaymentService::METHOD_BANK_TRANSFER,
        'bank_reference' => 'Überweisung Mathis, Verwendungszweck "Bestellung"',
        'note' => null,
        'send_mail' => true,
    ], $overrides);
}

it('marks the order paid and runs the full paid path', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap();

    $transaction = app(ManualPaymentService::class)
        ->recordIncomingPayment($order, $payment, manualPaymentData(), $admin);

    expect((bool) $order->fresh()->paid)->toBeTrue()
        ->and($order->fresh()->txaction)->toBe('paid')
        ->and($payment->fresh()->txaction)->toBe('paid')
        ->and($transaction->request)->toBe('manual_payment')
        ->and($transaction->provider)->toBe('manual')
        ->and($transaction->txaction)->toBe('paid');
});

it('stores a complete audit trail on the transaction', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap();

    $transaction = app(ManualPaymentService::class)->recordIncomingPayment(
        $order,
        $payment,
        manualPaymentData(['note' => 'Kunde hat telefonisch bestätigt']),
        $admin,
    );

    $audit = $transaction->transmitted_data;

    expect($audit['recorded_by_user_id'])->toBe($admin->id)
        ->and($audit['recorded_by_email'])->toBe($admin->email)
        ->and($audit['amount_cents'])->toBe(28850)
        ->and($audit['expected_cents'])->toBe(28850)
        ->and($audit['amount_matches'])->toBeTrue()
        ->and($audit['paid_at'])->toBe('2026-06-13')
        ->and($audit['bank_reference'])->toContain('Mathis')
        ->and($audit['note'])->toBe('Kunde hat telefonisch bestätigt');
});

it('sends the confirmation mail only when requested', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap();

    app(ManualPaymentService::class)
        ->recordIncomingPayment($order, $payment, manualPaymentData(['send_mail' => false]), $admin);

    // MailSyS (Admin-Protokoll) darf laufen — die Kundenmail nicht.
    Mail::assertNotSent(MailCheckout::class);
});

it('sends the confirmation mail to the customer when requested', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap();

    app(ManualPaymentService::class)
        ->recordIncomingPayment($order, $payment, manualPaymentData(['send_mail' => true]), $admin);

    Mail::assertSent(MailCheckout::class);
});

it('records a deviating amount and flags it in the audit trail', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap();

    $transaction = app(ManualPaymentService::class)
        ->recordIncomingPayment($order, $payment, manualPaymentData(['amount_cents' => 28000]), $admin);

    expect($transaction->transmitted_data['amount_matches'])->toBeFalse()
        ->and($transaction->transmitted_data['amount_cents'])->toBe(28000)
        ->and($transaction->transmitted_data['expected_cents'])->toBe(28850);
});

it('refuses an order that is already paid', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap([], ['paid' => true, 'txaction' => 'paid']);

    expect(fn () => app(ManualPaymentService::class)
        ->recordIncomingPayment($order, $payment, manualPaymentData(), $admin)
    )->toThrow(ManualPaymentException::class);

    expect(PaymentTransaction::where('shopping_payment_id', $payment->id)->count())->toBe(0);
});

it('refuses a cancelled order', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap([], ['txaction' => 'cancelled']);

    expect(fn () => app(ManualPaymentService::class)
        ->recordIncomingPayment($order, $payment, manualPaymentData(), $admin)
    )->toThrow(ManualPaymentException::class);
});

it('refuses a payment that belongs to a different order', function () {
    [$order, , $admin] = manualPaymentBootstrap();
    [, $foreignPayment] = manualPaymentBootstrap();

    expect(fn () => app(ManualPaymentService::class)
        ->recordIncomingPayment($order, $foreignPayment, manualPaymentData(), $admin)
    )->toThrow(ManualPaymentException::class);
});

it('activates the subscription when the order is an abo', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap(
        ['is_abo' => true, 'abo_interval' => 1],
        ['is_abo' => true, 'abo_interval' => 1],
    );

    app(ManualPaymentService::class)->recordIncomingPayment($order, $payment, manualPaymentData(), $admin);

    // Der Paid-Pfad ist durchgelaufen (AboHelper::setAboActive inklusive) —
    // entscheidend ist, dass die Bestellung dabei nicht hängen bleibt.
    expect((bool) $order->fresh()->paid)->toBeTrue()
        ->and($order->fresh()->txaction)->toBe('paid');
});

it('does not create a second transaction on a repeated call', function () {
    [$order, $payment, $admin] = manualPaymentBootstrap();
    $service = app(ManualPaymentService::class);

    $service->recordIncomingPayment($order, $payment, manualPaymentData(), $admin);

    expect(fn () => $service->recordIncomingPayment($order->fresh(), $payment, manualPaymentData(), $admin))
        ->toThrow(ManualPaymentException::class);

    expect(PaymentTransaction::where('shopping_payment_id', $payment->id)->where('request', 'manual_payment')->count())
        ->toBe(1);
});

// --- Formular-Validierung (SE4.2 / SE4.3) ---

/**
 * @param  array<string, mixed>  $data
 */
function validateManualPaymentRequest(array $data): void
{
    $request = RecordManualPaymentRequest::create('/admin/sales/payment/manual', 'POST', $data);
    $request->setContainer(app())->setRedirector(app(Redirector::class));
    $request->validateResolved();
}

/**
 * @return array<string, mixed>
 */
function manualPaymentFormData(ShoppingOrder $order, ShoppingPayment $payment, array $overrides = []): array
{
    return array_merge([
        'id' => $order->id,
        'payment_id' => $payment->id,
        'paid_at' => '2026-06-13',
        'amount' => '288.50',
        'method' => ManualPaymentService::METHOD_BANK_TRANSFER,
        'bank_reference' => 'Überweisung Mathis',
    ], $overrides);
}

it('accepts a matching amount', function () {
    [$order, $payment] = manualPaymentBootstrap();

    validateManualPaymentRequest(manualPaymentFormData($order, $payment));
})->throwsNoExceptions();

it('rejects a deviating amount without confirmation', function () {
    [$order, $payment] = manualPaymentBootstrap();

    try {
        validateManualPaymentRequest(manualPaymentFormData($order, $payment, ['amount' => '280.00']));
        $this->fail('Die Abweichung hätte abgelehnt werden müssen.');
    } catch (ValidationException $e) {
        expect($e->validator->errors()->has('amount'))->toBeTrue()
            ->and($e->validator->errors()->first('amount'))->toContain('288,50');
    }
});

it('accepts a deviating amount once it is confirmed', function () {
    [$order, $payment] = manualPaymentBootstrap();

    validateManualPaymentRequest(manualPaymentFormData($order, $payment, [
        'amount' => '280.00',
        'confirm_deviation' => '1',
    ]));
})->throwsNoExceptions();

it('requires the bank reference', function () {
    [$order, $payment] = manualPaymentBootstrap();

    try {
        validateManualPaymentRequest(manualPaymentFormData($order, $payment, ['bank_reference' => '']));
        $this->fail('Der fehlende Verwendungszweck hätte abgelehnt werden müssen.');
    } catch (ValidationException $e) {
        expect($e->validator->errors()->has('bank_reference'))->toBeTrue();
    }
});

it('rejects a payment date in the future', function () {
    [$order, $payment] = manualPaymentBootstrap();

    try {
        validateManualPaymentRequest(manualPaymentFormData($order, $payment, [
            'paid_at' => now()->addDay()->format('Y-m-d'),
        ]));
        $this->fail('Das Datum in der Zukunft hätte abgelehnt werden müssen.');
    } catch (ValidationException $e) {
        expect($e->validator->errors()->has('paid_at'))->toBeTrue();
    }
});

it('parses german decimal input', function () {
    $request = RecordManualPaymentRequest::create('/x', 'POST', ['amount' => '288,50']);

    expect($request->amountCents())->toBe(28850);
});