<?php

namespace App\Http\Controllers;

use App\Enums\BillingProductPurpose;
use App\Http\Resources\BillingProductResource;
use App\Models\BillingProduct;
use App\Services\MobileDeepLink;
use App\Services\PaymentTransactionRecorder;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\AnonymousResourceCollection;

class BillingController extends Controller
{
    public function products(): AnonymousResourceCollection
    {
        $products = BillingProduct::query()
            ->active()
            ->whereNotNull('purpose')
            ->whereNotNull('stripe_price_id')
            ->orderBy('sort_order')
            ->orderBy('amount')
            ->get();

        return BillingProductResource::collection($products);
    }

    public function checkout(
        Request $request,
        BillingProduct $billingProduct,
        PaymentTransactionRecorder $transactions,
    ): JsonResponse {
        abort_unless($billingProduct->is_active, 404);
        abort_unless($billingProduct->purpose !== null, 404);
        abort_unless(filled($billingProduct->stripe_price_id), 404);

        $user = $request->user();
        $this->ensureStripeCustomer($user);

        $metadata = [
            'billing_product_id' => $billingProduct->getKey(),
            'billing_product_purpose' => $billingProduct->purpose->value,
        ];
        $sessionOptions = [
            'success_url' => $this->redirectUrl('success'),
            'cancel_url' => $this->redirectUrl('cancel'),
            'metadata' => $metadata,
            'client_reference_id' => $billingProduct->getKey(),
        ];

        if ($billingProduct->purpose === BillingProductPurpose::SUBSCRIPTION) {
            if ($user->subscribed('default')) {
                return response()->json([
                    'message' => __('api.billing.active_subscription_exists'),
                ], 409);
            }

            $checkout = $user
                ->newSubscription('default', $billingProduct->stripe_price_id)
                ->withMetadata($metadata)
                ->checkout($sessionOptions);
        } else {
            if ($user->hasPurchasedCertification() || $user->account_verified_at !== null) {
                return response()->json([
                    'message' => __('api.billing.certification_already_purchased'),
                ], 409);
            }

            $sessionOptions['invoice_creation'] = [
                'enabled' => true,
                'invoice_data' => [
                    'metadata' => $metadata,
                ],
            ];

            $checkout = $user->checkout([
                $billingProduct->stripe_price_id => 1,
            ], $sessionOptions);
        }

        $session = $checkout->asStripeCheckoutSession();

        $transactions->recordCheckoutSession(
            user: $user,
            product: $billingProduct,
            stripeCheckoutSessionId: $session->id,
            stripeCustomerId: $session->customer,
            amount: $session->amount_total,
            currency: $session->currency,
        );

        return response()->json([
            'id' => $session->id,
            'url' => $session->url,
        ]);
    }

    public function portal(Request $request): JsonResponse
    {
        $user = $request->user();
        $this->ensureStripeCustomer($user);

        if (! $user->subscribed('default')) {
            return response()->json([
                'message' => __('api.billing.no_active_subscription'),
            ], 409);
        }

        $portalUrl = $user->billingPortalUrl($this->redirectUrl('portal'));

        return response()->json([
            'url' => $portalUrl,
        ]);
    }

    public function redirectToMobileApp(string $status): RedirectResponse
    {
        abort_unless(in_array($status, ['success', 'cancel', 'portal'], true), 404);

        return redirect()->away(MobileDeepLink::to("billing/{$status}"));
    }

    private function ensureStripeCustomer(mixed $user): void
    {
        if (! is_object($user) || ! method_exists($user, 'createOrGetStripeCustomer')) {
            return;
        }

        $user->createOrGetStripeCustomer();
    }

    private function redirectUrl(string $status): string
    {
        return route('billing.web-return', ['status' => $status]);
    }
}