<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\Order;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;

class OrderController extends Controller
{
    /**
     * Mettre à jour le statut d'une commande
     * Remplace la fonction Supabase update-order-status
     */
    public function updateStatus(Request $request, string $orderId)
    {
        $validator = Validator::make($request->all(), [
            'newStatus' => 'required|string|in:En attente de traitement,Traitement en cours,Commande traitée',
        ]);

        if ($validator->fails()) {
            return response()->json([
                'error' => 'newStatus est requis et doit être une chaîne de caractères valide'
            ], 400);
        }

        $newStatus = $request->input('newStatus');

        // Vérifier que la commande existe
        $order = Order::find($orderId);

        if (!$order) {
            return response()->json([
                'error' => 'Commande introuvable'
            ], 404);
        }

        // Vérifier si le statut est déjà le même
        if ($order->status === $newStatus) {
            return response()->json([
                'error' => "La commande a déjà le statut \"{$newStatus}\"",
                'order' => $order
            ], 400);
        }

        // Mettre à jour le statut
        $order->status = $newStatus;
        $order->save();

        return response()->json($order, 200);
    }

    /**
     * Récupérer les commandes avec pagination
     */
    public function index(Request $request)
    {
        $perPage = $request->input('per_page', 10);
        $page = $request->input('page', 1);
        $status = $request->input('status');

        $query = Order::query()->orderBy('created_at', 'desc');

        if ($status) {
            $query->where('status', $status);
        }

        $orders = $query->paginate($perPage, ['*'], 'page', $page);

        return response()->json([
            'data' => $orders->items(),
            'total' => $orders->total(),
            'per_page' => $orders->perPage(),
            'current_page' => $orders->currentPage(),
            'last_page' => $orders->lastPage(),
        ]);
    }

    /**
     * Récupérer les métriques des commandes
     */
    public function metrics()
    {
        $total = Order::count();
        $pending = Order::where('status', 'En attente de traitement')->count();
        $processing = Order::where('status', 'Traitement en cours')->count();
        $completed = Order::where('status', 'Commande traitée')->count();
        $totalRevenue = Order::sum('price');
        $pendingRevenue = Order::where('status', 'En attente de traitement')->sum('price');
        $processingRevenue = Order::where('status', 'Traitement en cours')->sum('price');
        $completedRevenue = Order::where('status', 'Commande traitée')->sum('price');

        return response()->json([
            'total' => $total,
            'pending' => $pending,
            'processing' => $processing,
            'completed' => $completed,
            'totalRevenue' => $totalRevenue,
            'pendingRevenue' => $pendingRevenue,
            'processingRevenue' => $processingRevenue,
            'completedRevenue' => $completedRevenue,
        ]);
    }
}