<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Mail\PaymentReceivedMail;
use App\Models\Order;
use App\Services\InvoiceService;
use App\Services\OrderService;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Mail;

class OrderController extends Controller
{
    public function __construct(
        private OrderService $orderService,
        private InvoiceService $invoiceService,
    ) {}

    public function index(Request $request)
    {
        $query = Order::with('addresses')->latest();

        if ($request->filled('status')) {
            $query->where('status', $request->status);
        }
        if ($request->filled('payment')) {
            $query->where('payment_method', $request->payment);
        }
        if ($request->filled('q')) {
            $query->where('order_number', 'like', '%'.$request->q.'%');
        }

        $orders = $query->paginate(25);
        return view('admin.orders.index', compact('orders'));
    }

    public function show(Order $order)
    {
        $order->load('items', 'addresses', 'user');
        return view('admin.orders.show', compact('order'));
    }

    public function updateStatus(Request $request, Order $order)
    {
        $data = $request->validate([
            'status'        => 'required|in:' . implode(',', array_keys(Order::$statusLabels)),
            'tracking_code' => 'nullable|string|max:255',
        ]);

        $this->orderService->updateStatus($order, $data['status'], $data['tracking_code'] ?? null);

        // Bei Zahlungseingang: Rechnung per Mail senden
        if ($data['status'] === 'payment_received') {
            $pdf   = $this->invoiceService->generate($order);
            $email = $order->guest_email ?? $order->user?->email;
            if ($email) {
                Mail::to($email)->send(new PaymentReceivedMail($order, $pdf->output(), $this->invoiceService->filename($order)));
            }
        }

        return back()->with('success', 'Status aktualisiert.');
    }

    public function sendInvoice(Order $order)
    {
        $pdf   = $this->invoiceService->generate($order);
        $email = $order->guest_email ?? $order->user?->email;
        if ($email) {
            Mail::to($email)->send(new PaymentReceivedMail($order, $pdf->output(), $this->invoiceService->filename($order)));
        }
        return back()->with('success', 'Rechnung erneut gesendet.');
    }

    public function downloadInvoice(Order $order)
    {
        return $this->invoiceService->generate($order)->download($this->invoiceService->filename($order));
    }
}