<?php
header('Content-Type: application/json; charset=utf-8');
header('Cache-Control: no-cache, must-revalidate');

// 获取客户ID
$id = $_GET['id'] ?? null;

if (!$id) {
    http_response_code(400);
    echo json_encode(['error' => '缺少客户ID参数'], JSON_UNESCAPED_UNICODE);
    exit;
}

// 引入根目录的数据库配置文件
require_once __DIR__ . '/config.php';

// 确保配置变量存在
if (!isset($host) || !isset($username) || !isset($password) || !isset($database)) {
    http_response_code(500);
    echo json_encode([
        'error' => '配置文件加载失败',
        'message' => '无法读取数据库配置信息'
    ], JSON_UNESCAPED_UNICODE);
    exit;
}

// 配置变量重命名，确保兼容性
$dbname = $database;

try {
    $pdo = new PDO("mysql:host=$host;dbname=$dbname;charset=utf8mb4", $username, $password);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    
    // 查询指定ID的VIP客户
    $stmt = $pdo->prepare("
        SELECT id, customer_name, phone, car_model, car_number, email, birthday, notes, is_active
        FROM vip_customers 
        WHERE id = ? AND is_active = 1
    ");
    $stmt->execute([$id]);
    
    $vipCustomer = $stmt->fetch(PDO::FETCH_ASSOC);
    
    if ($vipCustomer) {
        echo json_encode($vipCustomer, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
    } else {
        http_response_code(404);
        echo json_encode(['error' => 'VIP客户不存在'], JSON_UNESCAPED_UNICODE);
    }
    
} catch(PDOException $e) {
    http_response_code(500);
    echo json_encode([
        'error' => '数据库连接失败',
        'message' => $e->getMessage()
    ], JSON_UNESCAPED_UNICODE);
}
?>