<?php

namespace App\Controllers;

use App\models\CartModel;
use App\core\JsonResponse;

class CartController
{
    protected CartModel $cartModel;

    public function __construct(CartModel $cartModel = null)
    {
        $this->cartModel = $cartModel ?? new CartModel();
    }

    public function addToCart($userId, $data): void
    {
        if (!isset($data['product_id'], $data['quantity'])) {
            JsonResponse::send(['error' => 'Missing required fields'], 400);
            return;
        }

        $success = $this->cartModel->add($userId, $data['product_id'], $data['quantity']);

        if ($success) {
            JsonResponse::send(['success' => 'Product added to cart']);
        } else {
            JsonResponse::send(['error' => 'Failed to add to cart'], 500);
        }
    }

    public function removeFromCart($userId, $itemId): void
    {
        $success = $this->cartModel->remove($userId, $itemId);

        if ($success) {
            JsonResponse::send(['success' => 'Item removed from cart']);
        } else {
            JsonResponse::send(['error' => 'Failed to remove item'], 500);
        }
    }

    public function getCart($userId): void
    {
        $items = $this->cartModel->getItems($userId);
        JsonResponse::send(['cart' => $items]);
    }

    public function clearCart($userId): void
    {
        $this->cartModel->clear($userId);
        JsonResponse::send(['success' => 'Cart cleared']);
    }
}