<?php

namespace App\Http\Controllers\Shop;

use App\Http\Controllers\Controller;
use App\Models\Coupon;
use App\Models\Order;
use App\Models\ShippingRate;
use App\Services\CartService;
use App\Services\OrderService;
use Illuminate\Http\Request;
use Stripe\StripeClient;

class StripeController extends Controller
{
    public function __construct(private CartService $cart, private OrderService $orderService) {}

    public function createIntent(Request $request)
    {
        $subtotal     = $this->cart->subtotal();
        $country      = session('checkout_country', 'DE');
        $shippingRate = ShippingRate::forCart($subtotal, $country);
        $shippingCost = $shippingRate ? $shippingRate->getCostForTotal($subtotal) : 0;
        $discount     = 0;
        if ($code = session('coupon_code')) {
            $coupon = Coupon::findValid($code);
            if ($coupon) $discount = $coupon->calcDiscount($subtotal);
        }
        $total = max(0, $subtotal - $discount) + $shippingCost;

        $stripe = new StripeClient(config('services.stripe.secret'));
        $intent = $stripe->paymentIntents->create([
            'amount'   => (int) round($total * 100),
            'currency' => 'eur',
            'automatic_payment_methods' => ['enabled' => true],
        ]);

        return response()->json(['client_secret' => $intent->client_secret]);
    }

    public function success(Request $request)
    {
        $checkoutData  = session('checkout_data');
        $paymentIntent = $request->input('payment_intent');

        if (!$checkoutData || !$paymentIntent) {
            return redirect()->route('checkout.index');
        }

        $stripe = new StripeClient(config('services.stripe.secret'));
        $intent = $stripe->paymentIntents->retrieve($paymentIntent);

        if ($intent->status !== 'succeeded') {
            return redirect()->route('checkout.confirm')->with('error', 'Zahlung nicht abgeschlossen.');
        }

        $checkoutData['payment_method'] = 'stripe';
        $order = $this->orderService->createFromSession($checkoutData, 'stripe');
        $order->update([
            'payment_id' => $paymentIntent,
            'status'     => 'payment_received',
            'paid_at'    => now(),
        ]);

        session()->forget(['checkout_data', 'checkout_country']);

        return redirect()->route('checkout.thankyou', $order->order_number);
    }
}