<?php

namespace Modules\Core\Payment\Drivers;

use Lunar\Exceptions\FingerprintMismatchException;
use Lunar\Exceptions\Carts\CartException;
use Lunar\Exceptions\DisallowMultipleCartOrdersException;
use Lunar\Models\Cart;
use Lunar\Models\Order;
use Lunar\Stripe\Actions\UpdateOrderFromIntent;
use Lunar\Stripe\Facades\Stripe;
use Lunar\Stripe\Models\StripePaymentIntent;
use Modules\Core\Checkout\Contracts\PaymentDriver;
use Modules\Core\Checkout\Services\CheckoutService;
use Modules\Core\Payment\Exceptions\PaymentNotConfirmedException;
use Stripe\PaymentIntent;

/**
 * Wraps Lunar\Stripe\StripePaymentType::authorize() to satisfy
 * Modules\Core\Checkout\Contracts\PaymentDriver — calls
 * CheckoutService::placeOrder($fingerprint) at the moment Stripe confirms
 * payment, instead of the vendor's own Cart::createOrder() call.
 *
 * This is a fork, not a decoration: StripePaymentType::authorize() is
 * `final` and calls Cart::createOrder() directly with no seam to redirect
 * that one call — so this class reimplements authorize()'s logic (intent
 * retrieval, capture-on-policy, status mapping via UpdateOrderFromIntent)
 * rather than wrapping the vendor method. Kept deliberately close to the
 * original so a lunarphp/stripe upgrade is easy to diff against. See
 * docs/payments.md.
 */
class StripePaymentDriver implements PaymentDriver
{
    public function __construct(
        private readonly CheckoutService $checkout,
    ) {}

    /**
     * Same key lunarphp/stripe's own StripeManager reads its API key from
     * (Stripe::setApiKey(config('services.stripe.key')) in
     * StripeManager::__construct()) — no key, no usable driver.
     */
    public function isConfigured(): bool
    {
        return filled(config('services.stripe.key'));
    }

    /**
     * @throws PaymentNotConfirmedException if Stripe hasn't confirmed the
     *   payment intent (wrong intent id, already processed, order already
     *   placed, or the gateway call itself fails) — nothing here should be
     *   treated as "place the order anyway."
     * @throws FingerprintMismatchException
     * @throws CartException
     */
    public function confirm(Cart $cart, string $type, string $fingerprint, array $data): Order
    {
        $paymentIntentId = $data['payment_intent'];

        $paymentIntentModel = StripePaymentIntent::where('intent_id', $paymentIntentId)->first();

        if ($paymentIntentModel && ! $paymentIntentModel->isActive()) {
            throw new PaymentNotConfirmedException('Payment intent already processed.');
        }

        if (! $paymentIntentModel) {
            $paymentIntentModel = StripePaymentIntent::create([
                'intent_id' => $paymentIntentId,
                'cart_id' => $cart->id,
            ]);
        }

        $paymentIntentModel->update(['processing_at' => now()]);

        $stripe = Stripe::getClient();
        $paymentIntent = $stripe->paymentIntents->retrieve($paymentIntentId);

        if (! $paymentIntent) {
            throw new PaymentNotConfirmedException('Unable to locate payment intent.');
        }

        $policy = config('lunar.stripe.policy', 'automatic');

        if ($paymentIntent->status === PaymentIntent::STATUS_REQUIRES_CAPTURE && $policy === 'automatic') {
            $paymentIntent = $stripe->paymentIntents->capture($paymentIntentId);
        }

        if ($paymentIntent->status !== PaymentIntent::STATUS_SUCCEEDED) {
            $paymentIntentModel->update(['status' => $paymentIntent->status]);

            throw new PaymentNotConfirmedException(
                $paymentIntent->last_payment_error->message ?? "Payment intent status: {$paymentIntent->status}."
            );
        }

        try {
            $order = $this->checkout->placeOrder($fingerprint);
        } catch (DisallowMultipleCartOrdersException|CartException $e) {
            throw new PaymentNotConfirmedException($e->getMessage(), previous: $e);
        }

        $paymentIntentModel->order_id = $order->id;
        $paymentIntentModel->status = $paymentIntent->status;
        $paymentIntentModel->processed_at = now();
        $paymentIntentModel->save();

        UpdateOrderFromIntent::execute($order, $paymentIntent);

        return $order->refresh();
    }
}