<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Str;
use Stripe\Stripe;
use Stripe\Checkout\Session;
use Stripe\StripeClient;
use Exception;
use PayPal\Api\Amount;
use PayPal\Api\Payer;
use PayPal\Api\Payment;
use PayPal\Api\RedirectUrls;
use PayPal\Api\Transaction;
use PayPal\Rest\ApiContext;
use PayPal\Auth\OAuthTokenCredential;
use App\Models\Tenant;
use App\Models\EventPurchase;

class MarketingController extends Controller
{
    public function __construct()
    {
        \Stripe\Stripe::setApiKey(config('services.stripe.key'));
    }

    public function index()
    {
        $packages = [
            ['id' => 'basic', 'name' => 'Basic', 'events' => 1, 'price' => 0, 'description' => '1 Event, 100 Fotos, Grundfunktionen'],
            ['id' => 'standard', 'name' => 'Standard', 'events' => 10, 'price' => 99, 'description' => '10 Events, Unbegrenzt Fotos, Erweiterte Features'],
            ['id' => 'premium', 'name' => 'Premium', 'events' => 50, 'price' => 199, 'description' => '50 Events, Support & Custom, Alle Features'],
        ];

        return view('marketing', compact('packages'));
    }

    public function contact(Request $request)
    {
        $request->validate([
            'name' => 'required|string|max:255',
            'email' => 'required|email|max:255',
            'message' => 'required|string|max:1000',
        ]);

        Mail::raw("Kontakt-Anfrage von {$request->name} ({$request->email}): {$request->message}", function ($message) use ($request) {
            $message->to('admin@fotospiel.de')
                    ->subject('Neue Kontakt-Anfrage');
        });

        return redirect()->back()->with('success', 'Nachricht gesendet!');
    }

    public function checkout(Request $request, $package)
    {
        $packages = [
            'basic' => ['name' => 'Basic', 'price' => 0, 'events' => 1],
            'standard' => ['name' => 'Standard', 'price' => 9900, 'events' => 10], // cents
            'premium' => ['name' => 'Premium', 'price' => 19900, 'events' => 50],
        ];

        if (!isset($packages[$package])) {
            abort(404);
        }

        $pkg = $packages[$package];

        if ($pkg['price'] == 0) {
            // Free package: create tenant and event
            $tenant = Tenant::create([
                'name' => $request->input('tenant_name', 'New Tenant'),
                'slug' => Str::slug('new-' . now()),
                'email' => $request->input('email'),
                'events_remaining' => $pkg['events'],
            ]);

            // Create initial event
            $event = $tenant->events()->create([
                'name' => $request->input('event_name', 'My Event'),
                'slug' => Str::slug($request->input('event_name', 'my-event')),
                'status' => 'active',
            ]);

            $purchase = EventPurchase::create([
                'tenant_id' => $tenant->id,
                'events_purchased' => $pkg['events'],
                'amount' => 0,
                'currency' => 'EUR',
                'provider' => 'free',
                'status' => 'completed',
                'purchased_at' => now(),
            ]);

            return redirect("/admin/tenants/{$tenant->id}/edit")->with('success', 'Konto erstellt! Willkommen bei Fotospiel.');
        }

        $stripe = new \Stripe\StripeClient(config('services.stripe.secret'));
        $session = $stripe->checkout->sessions->create([
            'payment_method_types' => ['card'],
            'line_items' => [[
                'price_data' => [
                    'currency' => 'eur',
                    'product_data' => [
                        'name' => $pkg['name'] . ' Package',
                    ],
                    'unit_amount' => $pkg['price'],
                ],
                'quantity' => 1,
            ]],
            'mode' => 'payment',
            'success_url' => route('marketing.success', $package),
            'cancel_url' => route('marketing'),
            'metadata' => [
                'package' => $package,
                'events' => $pkg['events'],
            ],
        ]);

        return redirect($session->url, 303);
    }

    public function stripeCheckout($sessionId)
    {
        // Handle Stripe success
        return view('marketing.success', ['provider' => 'Stripe']);
    }

    public function paypalCheckout(Request $request, $package)
    {
        $packages = [
            'basic' => ['name' => 'Basic', 'price' => 0, 'events' => 1],
            'standard' => ['name' => 'Standard', 'price' => 99, 'events' => 10],
            'premium' => ['name' => 'Premium', 'price' => 199, 'events' => 50],
        ];

        if (!isset($packages[$package])) {
            abort(404);
        }

        $pkg = $packages[$package];

        if ($pkg['price'] == 0) {
            // Free package: create tenant and event
            $tenant = Tenant::create([
                'name' => $request->input('tenant_name', 'New Tenant'),
                'slug' => Str::slug('new-' . now()),
                'email' => $request->input('email'),
                'events_remaining' => $pkg['events'],
            ]);

            // Create initial event
            $event = $tenant->events()->create([
                'name' => $request->input('event_name', 'My Event'),
                'slug' => Str::slug($request->input('event_name', 'my-event')),
                'status' => 'active',
            ]);

            $purchase = EventPurchase::create([
                'tenant_id' => $tenant->id,
                'events_purchased' => $pkg['events'],
                'amount' => 0,
                'currency' => 'EUR',
                'provider' => 'free',
                'status' => 'completed',
                'purchased_at' => now(),
            ]);

            return redirect("/admin/tenants/{$tenant->id}/edit")->with('success', 'Konto erstellt! Willkommen bei Fotospiel.');
        }

        $apiContext = new ApiContext(
            new OAuthTokenCredential(
                config('services.paypal.client_id'),
                config('services.paypal.secret')
            )
        );

        $payment = new Payment();
        $payer = new Payer();
        $payer->setPaymentMethod('paypal');

        $amountObj = new Amount();
        $amountObj->setCurrency('EUR');
        $amountObj->setTotal($pkg['price']);

        $transaction = new Transaction();
        $transaction->setAmount($amountObj);

        $redirectUrls = new RedirectUrls();
        $redirectUrls->setReturnUrl(route('marketing.success', $package));
        $redirectUrls->setCancelUrl(route('marketing'));

        $payment->setIntent('sale')
                ->setPayer($payer)
                ->setTransactions([$transaction])
                ->setRedirectUrls($redirectUrls);

        try {
            $payment->create($apiContext);
            return redirect($payment->getApprovalLink());
        } catch (Exception $e) {
            return back()->with('error', 'Zahlung fehlgeschlagen');
        }
    }
}