<?php
session_start();
$servername = "localhost";
$username = "root";
$password = "root";
$dbname = "cyberpunk";

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接数据库失败: " . $conn->connect_error);
}

// 检查用户是否已登录
if (!isset($_SESSION['id'])) {
    http_response_code(401);
    echo json_encode(['error' => '用户未登录']);
    exit;
}

$user_id = $_SESSION['id'];
$car_id = $_POST['car_id'];

$sql = "DELETE FROM user_cart WHERE user_id=? AND vehicle_id=?";
$stmt = $conn->prepare($sql);
if (!$stmt) {
    http_response_code(500);
    echo json_encode(['error' => '预处理 SQL 语句失败: ' . $conn->error]);
    exit;
}

$stmt->bind_param("ii", $user_id, $car_id);
$stmt->execute();
$affected_rows = $stmt->affected_rows;
$stmt->close();

$conn->close();

$response = ['success' => ($affected_rows > 0)];
header('Content-Type: application/json');
echo json_encode($response);
exit;
?>