<?php

use App\Cron\UserMakeOrder;
use App\Models\PaymentTransaction;
use App\Models\ShippingCountry;
use App\Models\ShoppingOrder;
use App\Models\ShoppingPayment;
use App\Models\ShoppingUser;
use App\Models\StripeWebhookEvent;
use App\Models\UserAbo;
use App\Models\UserAboOrder;
use App\Models\UserShop;
use App\Services\AboHelper;
use App\Services\Payment\Stripe\DTOs\StripeWebhookResult;
use App\Services\Payment\Stripe\StripeClientWrapper;
use App\Services\Payment\Stripe\StripePaymentService;
use App\Services\Payment\Stripe\StripeWebhookHandler;
use App\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Mail;
use Stripe\Checkout\Session;
use Stripe\Customer;
use Stripe\Exception\CardException;
use Stripe\PaymentIntent;
use Stripe\StripeClient;
use Tests\TestCase;

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

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

/**
 * Order-Fixture für eine 89,00-EUR-Abo-Bestellung (Plan S4).
 *
 * @return array{0: ShoppingOrder, 1: ShoppingUser}
 */
function stripeAboOrderBootstrap(array $orderOverrides = []): array
{
    $country = ShippingCountry::first() ?? ShippingCountry::create(['shipping_id' => 1, 'country_id' => 1]);

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

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

    $shoppingUser = ShoppingUser::create([
        'auth_user_id' => $shopOwner->id,
        'is_for' => 'me',
        'billing_firstname' => 'Stripe',
        'billing_lastname' => 'Abo',
        'billing_email' => 'stripe-abo-'.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' => 89.00,
        'total_shipping' => 89.00,
        'paid' => false,
        'txaction' => null,
        'mode' => 'test',
        'is_abo' => 1,
        'abo_interval' => 5,
    ], $orderOverrides));

    return [$order, $shoppingUser];
}

function stripeAboUserAbo(array $overrides = []): UserAbo
{
    $consultant = User::forceCreate([
        'email' => 'sa-abo-'.uniqid('', true).'@example.com',
        'password' => bcrypt('secret'),
        'lang' => 'de',
    ]);

    return UserAbo::create(array_merge([
        'user_id' => $consultant->id,
        'shopping_user_id' => 1,
        'is_for' => 'me',
        'email' => $consultant->email,
        'payone_userid' => 0,
        'payment_provider' => 'stripe',
        'stripe_customer_id' => 'cus_abo_1',
        'stripe_payment_method_id' => 'pm_abo_1',
        'clearingtype' => 'stripe',
        'active' => true,
        'status' => 2,
        'abo_interval' => 5,
        'next_date' => now()->addDays(3),
    ], $overrides));
}

/**
 * Stripe-Client-Mock, der genau einen fachlichen request()-Aufruf beantwortet
 * und die Argumente zur Assertion herausreicht (Muster: StripeCheckoutTest).
 *
 * Die Customer-Anlage aus Phase SE1 wird transparent mitbeantwortet — sie ist
 * Infrastruktur und nicht Gegenstand dieser Assertions.
 */
function stripeAboMockClient(mixed $result, ?array &$captured = null): void
{
    $client = Mockery::mock(StripeClient::class.'[request]', [['api_key' => 'sk_test_fake']]);

    $client->shouldReceive('request')
        ->withArgs(fn (...$args) => ($args[1] ?? null) === '/v1/customers')
        ->andReturn(Customer::constructFrom(['id' => 'cus_abo_checkout', 'object' => 'customer']));

    $expectation = $client->shouldReceive('request')
        ->once()
        ->withArgs(function (...$args) use (&$captured) {
            if (($args[1] ?? null) === '/v1/customers') {
                return false;
            }
            $captured = $args;

            return true;
        });

    if ($result instanceof Throwable) {
        $expectation->andThrow($result);
    } else {
        $expectation->andReturn($result);
    }

    $wrapper = Mockery::mock(StripeClientWrapper::class);
    $wrapper->shouldReceive('client')->andReturn($client);
    app()->instance(StripeClientWrapper::class, $wrapper);
}

function handleStripeAboEvent(string $type, array $object, string $eventId): StripeWebhookResult
{
    $payload = json_encode([
        'id' => $eventId,
        'object' => 'event',
        'api_version' => '2026-06-30',
        'type' => $type,
        'data' => ['object' => $object],
    ]);
    $timestamp = time();
    $signed = hash_hmac('sha256', $timestamp.'.'.$payload, config('stripe.webhook_secret'));

    return app(StripeWebhookHandler::class)->handle($payload, "t={$timestamp},v1={$signed}");
}

// --- S4.1: Abo-Erstzahlung speichert das Zahlungsmittel ---

it('requests off-session saving and customer creation for abo checkout sessions', function () {
    [$order, $shoppingUser] = stripeAboOrderBootstrap();

    $captured = null;
    stripeAboMockClient(Session::constructFrom([
        'id' => 'cs_abo_1',
        'object' => 'checkout.session',
        'url' => 'https://checkout.stripe.com/c/pay/cs_abo_1',
        'status' => 'open',
        'livemode' => false,
    ]), $captured);

    app(StripePaymentService::class)->initiateCheckoutPayment(
        $shoppingUser,
        $order,
        8900,
        'EUR',
        'aref123',
        'https://checkout.test/transaction/status/success/aref123',
        'https://checkout.test/transaction/status/cancel/aref123',
    );

    $params = $captured[2];

    // Seit SE1 hängt der Checkout einen benannten Customer an, statt Stripe
    // einen namenlosen anlegen zu lassen (customer_creation).
    expect($params['customer'])->toBe('cus_abo_checkout')
        ->and($params)->not->toHaveKey('customer_creation')
        ->and($params['payment_intent_data']['setup_future_usage'])->toBe('off_session');
});

it('does not request off-session saving for one-time checkout sessions', function () {
    [$order, $shoppingUser] = stripeAboOrderBootstrap(['is_abo' => 0, 'abo_interval' => 0]);

    $captured = null;
    stripeAboMockClient(Session::constructFrom([
        'id' => 'cs_once_1',
        'object' => 'checkout.session',
        'url' => 'https://checkout.stripe.com/c/pay/cs_once_1',
        'status' => 'open',
        'livemode' => false,
    ]), $captured);

    app(StripePaymentService::class)->initiateCheckoutPayment(
        $shoppingUser,
        $order,
        8900,
        'EUR',
        'oref123',
        'https://s.test/ok',
        'https://s.test/cancel',
    );

    $params = $captured[2];

    expect($params)->not->toHaveKey('customer_creation')
        ->and($params['customer'])->toBe('cus_abo_checkout')
        ->and($params['payment_intent_data'])->not->toHaveKey('setup_future_usage');
});

// --- S4.2: Abo-Anlage über den Webhook-Paid-Pfad ---

it('creates the user abo with stripe fields from the webhook paid path', function () {
    [$order] = stripeAboOrderBootstrap();
    $payment = ShoppingPayment::create([
        'shopping_order_id' => $order->id,
        'payment_provider' => 'stripe',
        'clearingtype' => 'stripe',
        'reference' => 'sa-ref-'.uniqid(),
        'amount' => 8900,
        'currency' => 'EUR',
        'is_abo' => true,
        'abo_interval' => 5,
        'mode' => 'test',
    ]);

    handleStripeAboEvent('payment_intent.succeeded', [
        'id' => 'pi_abo_paid',
        'object' => 'payment_intent',
        'status' => 'succeeded',
        'amount_received' => 8900,
        'customer' => 'cus_new_1',
        'payment_method' => 'pm_new_1',
        'livemode' => false,
        'metadata' => ['shopping_payment_id' => (string) $payment->id],
    ], 'evt_abo_paid');

    $abo = $order->fresh()->getUserAbo();

    expect($order->fresh()->paid)->toBeTruthy()
        ->and($abo)->not->toBeNull()
        ->and($abo->payment_provider)->toBe('stripe')
        ->and($abo->stripe_customer_id)->toBe('cus_new_1')
        ->and($abo->stripe_payment_method_id)->toBe('pm_new_1')
        ->and((int) $abo->payone_userid)->toBe(0)
        ->and($payment->fresh()->stripe_customer_id)->toBe('cus_new_1');
});

it('defers abo creation on browser return until stripe ids arrived via webhook', function () {
    [$order] = stripeAboOrderBootstrap();
    $payment = ShoppingPayment::create([
        'shopping_order_id' => $order->id,
        'payment_provider' => 'stripe',
        'clearingtype' => 'stripe',
        'reference' => 'sa-ref-'.uniqid(),
        'amount' => 8900,
        'currency' => 'EUR',
        'is_abo' => true,
        'abo_interval' => 5,
        'mode' => 'test',
    ]);

    // Browser-Return läuft vor dem Webhook: noch keine Stripe-IDs an der Zahlung
    AboHelper::createNewAbo($payment);

    expect(UserAboOrder::where('shopping_order_id', $order->id)->exists())->toBeFalse();

    // Webhook liefert die IDs und legt das Abo vollständig an
    handleStripeAboEvent('payment_intent.succeeded', [
        'id' => 'pi_abo_late',
        'object' => 'payment_intent',
        'status' => 'succeeded',
        'amount_received' => 8900,
        'customer' => 'cus_late_1',
        'payment_method' => 'pm_late_1',
        'livemode' => false,
        'metadata' => ['shopping_payment_id' => (string) $payment->id],
    ], 'evt_abo_late');

    $abo = $order->fresh()->getUserAbo();

    expect($abo)->not->toBeNull()
        ->and($abo->stripe_payment_method_id)->toBe('pm_late_1');
});

it('never creates a new abo for recurring cron charges even when the webhook wins the race', function () {
    $userAbo = stripeAboUserAbo();
    [$order] = stripeAboOrderBootstrap();
    $payment = ShoppingPayment::create([
        'shopping_order_id' => $order->id,
        'payment_provider' => 'stripe',
        'clearingtype' => 'stripe',
        'reference' => 'sa-ref-'.uniqid(),
        'amount' => 8900,
        'currency' => 'EUR',
        'is_abo' => true,
        'abo_interval' => 5,
        'mode' => 'test',
        'user_abo_id' => $userAbo->id,
    ]);

    $abosBefore = UserAbo::count();

    handleStripeAboEvent('payment_intent.succeeded', [
        'id' => 'pi_recurring',
        'object' => 'payment_intent',
        'status' => 'succeeded',
        'amount_received' => 8900,
        'customer' => 'cus_abo_1',
        'payment_method' => 'pm_abo_1',
        'livemode' => false,
        'metadata' => ['shopping_payment_id' => (string) $payment->id, 'user_abo_id' => (string) $userAbo->id],
    ], 'evt_recurring');

    expect($order->fresh()->paid)->toBeTruthy()
        ->and(UserAbo::count())->toBe($abosBefore);
});

// --- S4 / §7.2 Nr. 3: Recovery-Zahlung zieht das Abo auf Stripe um ---

it('advances a payone abo to stripe after a recovery payment via webhook', function () {
    $userAbo = stripeAboUserAbo([
        'payment_provider' => 'payone',
        'payone_userid' => 900500,
        'clearingtype' => 'cc',
        'stripe_customer_id' => null,
        'stripe_payment_method_id' => null,
        'status' => 3,
    ]);

    [$order] = stripeAboOrderBootstrap(['recovery_user_abo_id' => $userAbo->id]);
    $payment = ShoppingPayment::create([
        'shopping_order_id' => $order->id,
        'payment_provider' => 'stripe',
        'clearingtype' => 'stripe',
        'reference' => 'sa-ref-'.uniqid(),
        'amount' => 8900,
        'currency' => 'EUR',
        'is_abo' => true,
        'abo_interval' => 5,
        'mode' => 'test',
    ]);

    handleStripeAboEvent('payment_intent.succeeded', [
        'id' => 'pi_recovery',
        'object' => 'payment_intent',
        'status' => 'succeeded',
        'amount_received' => 8900,
        'customer' => 'cus_rec_1',
        'payment_method' => 'pm_rec_1',
        'livemode' => false,
        'metadata' => ['shopping_payment_id' => (string) $payment->id],
    ], 'evt_recovery');

    $fresh = $userAbo->fresh();

    expect($order->fresh()->paid)->toBeTruthy()
        ->and($fresh->payment_provider)->toBe('stripe')
        ->and($fresh->stripe_customer_id)->toBe('cus_rec_1')
        ->and($fresh->stripe_payment_method_id)->toBe('pm_rec_1')
        ->and($fresh->status)->toBe(2)
        ->and(UserAbo::count())->toBe(1)
        ->and(UserAboOrder::where('shopping_order_id', $order->id)->where('paid', true)->exists())->toBeTrue();
});

// --- S4.3/S4.5: Wiederkehrende Abbuchung off-session ---

it('charges a stripe abo off-session with an idempotency key and records the transaction', function () {
    $userAbo = stripeAboUserAbo();
    [$order, $shoppingUser] = stripeAboOrderBootstrap();

    $captured = null;
    stripeAboMockClient(PaymentIntent::constructFrom([
        'id' => 'pi_charge_1',
        'object' => 'payment_intent',
        'status' => 'succeeded',
        'amount' => 8900,
        'customer' => 'cus_abo_1',
        'payment_method' => 'pm_abo_1',
        'livemode' => false,
    ]), $captured);

    $result = app(StripePaymentService::class)->chargeAbo($userAbo, $order, $shoppingUser, 8900, 'EUR');

    $params = $captured[2];
    $opts = $captured[3] ?? null;
    $payment = $result->shoppingPayment->fresh();

    expect($result->success)->toBeTrue()
        ->and($result->status)->toBe('APPROVED')
        ->and($result->transactionId)->toBe('pi_charge_1')
        ->and($params['customer'])->toBe('cus_abo_1')
        ->and($params['payment_method'])->toBe('pm_abo_1')
        ->and($params['off_session'])->toBeTrue()
        ->and($params['confirm'])->toBeTrue()
        ->and($params['metadata']['user_abo_id'])->toBe((string) $userAbo->id)
        ->and($opts['idempotency_key'] ?? null)->toBe('abo-'.$userAbo->id.'-order-'.$order->id)
        ->and($payment->payment_provider)->toBe('stripe')
        ->and($payment->user_abo_id)->toBe($userAbo->id)
        ->and($payment->external_reference)->toBe('pi_charge_1')
        ->and(PaymentTransaction::where('shopping_payment_id', $payment->id)->where('request', 'authorization')->exists())->toBeTrue();
});

it('maps a card decline to an error result with customer message', function () {
    $userAbo = stripeAboUserAbo();
    [$order, $shoppingUser] = stripeAboOrderBootstrap();

    stripeAboMockClient(CardException::factory(
        'Your card was declined.',
        402,
        null,
        ['error' => ['code' => 'card_declined', 'message' => 'Your card was declined.', 'decline_code' => 'generic_decline', 'type' => 'card_error']],
    ));

    $result = app(StripePaymentService::class)->chargeAbo($userAbo, $order, $shoppingUser, 8900, 'EUR');

    expect($result->success)->toBeFalse()
        ->and($result->status)->toBe('ERROR')
        ->and($result->errorMessage)->toContain('card_declined')
        ->and($result->customerMessage)->toBe(__('payment.payment_error_reasons.card_declined'))
        ->and(PaymentTransaction::where('shopping_payment_id', $result->shoppingPayment->id)->where('errorcode', 'card_declined')->exists())->toBeTrue();
});

it('fails without touching stripe when the abo has no stored payment method', function () {
    $userAbo = stripeAboUserAbo(['stripe_payment_method_id' => null]);
    [$order, $shoppingUser] = stripeAboOrderBootstrap();

    $result = app(StripePaymentService::class)->chargeAbo($userAbo, $order, $shoppingUser, 8900, 'EUR');

    expect($result->success)->toBeFalse()
        ->and($result->status)->toBe('ERROR')
        ->and($result->customerMessage)->toBe(__('payment.stripe_abo_payment_method_missing'))
        ->and($result->shoppingPayment)->toBeNull();
});

// --- S4.4: Provider-Dispatch im Cron ---

it('dispatches the cron payment of a stripe abo through the stripe gateway', function () {
    $userAbo = stripeAboUserAbo();
    [$order, $shoppingUser] = stripeAboOrderBootstrap();

    stripeAboMockClient(PaymentIntent::constructFrom([
        'id' => 'pi_cron_1',
        'object' => 'payment_intent',
        'status' => 'succeeded',
        'livemode' => false,
    ]));

    $userOrder = new UserMakeOrder($userAbo);
    $reflection = new ReflectionClass($userOrder);
    foreach (['shopping_user' => $shoppingUser, 'shopping_order' => $order] as $property => $value) {
        $prop = $reflection->getProperty($property);
        $prop->setAccessible(true);
        $prop->setValue($userOrder, $value);
    }

    $response = $userOrder->makePayment();

    expect($response['status'])->toBe('APPROVED')
        ->and($response['provider'])->toBe('stripe')
        ->and($response['txid'])->toBe('pi_cron_1')
        ->and($userOrder->getShoppingPayment()->payment_provider)->toBe('stripe');
});

it('returns an error response for a declined cron charge so the cron sets abo status 3', function () {
    $userAbo = stripeAboUserAbo();
    [$order, $shoppingUser] = stripeAboOrderBootstrap();

    stripeAboMockClient(CardException::factory(
        'Authentication required.',
        402,
        null,
        ['error' => ['code' => 'authentication_required', 'message' => 'Authentication required.', 'type' => 'card_error']],
    ));

    $userOrder = new UserMakeOrder($userAbo);
    $reflection = new ReflectionClass($userOrder);
    foreach (['shopping_user' => $shoppingUser, 'shopping_order' => $order] as $property => $value) {
        $prop = $reflection->getProperty($property);
        $prop->setAccessible(true);
        $prop->setValue($userOrder, $value);
    }

    $response = $userOrder->makePayment();

    expect($response['status'])->toBe('ERROR')
        ->and($response['customermessage'])->toBe(__('payment.stripe_abo_authentication_required'));
});

// --- Webhook-Race: Cron-Transaktion noch nicht committet ---

it('requests a stripe retry when our payment is not yet visible and processes it later', function () {
    [$order] = stripeAboOrderBootstrap();

    $object = [
        'id' => 'pi_race',
        'object' => 'payment_intent',
        'status' => 'succeeded',
        'amount_received' => 8900,
        'customer' => 'cus_abo_1',
        'payment_method' => 'pm_abo_1',
        'livemode' => false,
        'metadata' => ['shopping_payment_id' => '999999'],
    ];

    $first = handleStripeAboEvent('payment_intent.succeeded', $object, 'evt_race');

    expect($first->statusCode)->toBe(503)
        ->and($first->state)->toBe('payment_not_yet_visible')
        ->and(StripeWebhookEvent::whereEventId('evt_race')->first()->processed_at)->toBeNull();

    // Zahlung wird sichtbar (Cron-Commit), Stripe stellt erneut zu
    ShoppingPayment::forceCreate([
        'id' => 999999,
        'shopping_order_id' => $order->id,
        'payment_provider' => 'stripe',
        'clearingtype' => 'stripe',
        'reference' => 'sa-ref-race',
        'amount' => 8900,
        'currency' => 'EUR',
        'mode' => 'test',
        'user_abo_id' => stripeAboUserAbo()->id,
    ]);

    $second = handleStripeAboEvent('payment_intent.succeeded', $object, 'evt_race');

    expect($second->statusCode)->toBe(200)
        ->and($second->state)->toBe('processed')
        ->and($order->fresh()->paid)->toBeTruthy();
});

it('processes pending stored events via the maintenance command once the payment is visible', function () {
    [$order] = stripeAboOrderBootstrap();
    $payment = ShoppingPayment::create([
        'shopping_order_id' => $order->id,
        'payment_provider' => 'stripe',
        'clearingtype' => 'stripe',
        'reference' => 'sa-ref-'.uniqid(),
        'amount' => 8900,
        'currency' => 'EUR',
        'is_abo' => true,
        'abo_interval' => 5,
        'mode' => 'test',
        'user_abo_id' => stripeAboUserAbo()->id,
    ]);

    // Wie nach einem 503: Event liegt gespeichert, aber unverarbeitet im Store
    StripeWebhookEvent::create([
        'event_id' => 'evt_pending_cmd',
        'type' => 'payment_intent.succeeded',
        'payload' => [
            'id' => 'pi_pending_cmd',
            'object' => 'payment_intent',
            'status' => 'succeeded',
            'amount_received' => 8900,
            'customer' => 'cus_abo_1',
            'payment_method' => 'pm_abo_1',
            'livemode' => false,
            'metadata' => ['shopping_payment_id' => (string) $payment->id],
        ],
    ]);

    // Nicht zuordenbares Event bleibt liegen
    StripeWebhookEvent::create([
        'event_id' => 'evt_still_missing',
        'type' => 'payment_intent.succeeded',
        'payload' => [
            'id' => 'pi_still_missing',
            'object' => 'payment_intent',
            'status' => 'succeeded',
            'livemode' => false,
            'metadata' => ['shopping_payment_id' => '888888'],
        ],
    ]);

    $this->artisan('stripe:process-pending-events')->assertExitCode(0);

    expect($order->fresh()->paid)->toBeTruthy()
        ->and(StripeWebhookEvent::whereEventId('evt_pending_cmd')->first()->processed_at)->not->toBeNull()
        ->and(StripeWebhookEvent::whereEventId('evt_still_missing')->first()->processed_at)->toBeNull();
});

it('still acknowledges foreign events without our metadata', function () {
    $result = handleStripeAboEvent('payment_intent.succeeded', [
        'id' => 'pi_foreign',
        'object' => 'payment_intent',
        'status' => 'succeeded',
        'livemode' => false,
        'metadata' => [],
    ], 'evt_foreign');

    expect($result->statusCode)->toBe(200)
        ->and(StripeWebhookEvent::whereEventId('evt_foreign')->first()->processed_at)->not->toBeNull();
});

// --- S4.6: Anzeige ---

it('labels stripe abos from the stored payment method summary', function () {
    $userAbo = stripeAboUserAbo([
        'carddata' => ['type' => 'card', 'brand' => 'visa', 'last4' => '4242', 'exp' => '04/2031', 'wallet' => null],
    ]);

    expect($userAbo->getPaymentType())->toContain('Visa')
        ->and($userAbo->getPaymentType())->toContain('4242')
        ->and(UserAbo::formatMaskedCard($userAbo->carddata))->toBe('Visa •••• 4242 (04/2031)');
});

it('falls back to the stripe type label for masked cards without last4', function () {
    expect(UserAbo::formatMaskedCard(['type' => 'paypal']))->toBe(__('payment.paypal'))
        ->and(UserAbo::formatMaskedCard(null))->toBeNull();
});