/**
 * 入口文件 - API路由
 */

// 记录请求日志
$logFile = __DIR__ . '/logs/request_' . date('Y-m-d') . '.log';
$dir = dirname($logFile);
if (!is_dir($dir)) mkdir($dir, 0755, true);
file_put_contents($logFile, date('Y-m-d H:i:s') . ' ' . $_SERVER['REQUEST_URI'] . "\n", FILE_APPEND);

// 设置时区
date_default_timezone_set('Asia/Shanghai');

// 允许跨域
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type, Authorization');

// 处理OPTIONS请求
if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
    exit(0);
}

// 引入类文件
require __DIR__ . '/application/database.php';
require __DIR__ . '/application/config.php';
require __DIR__ . '/application/WxPayApi.php';
require __DIR__ . '/application/Merchant.php';
require __DIR__ . '/application/Order.php';

// 获取请求路径
$uri = $_SERVER['REQUEST_URI'];
$path = parse_url($uri, PHP_URL_PATH);
$path = str_replace('/api.php', '', $path);
$path = trim($path, '/');

// 路由分发
try {
    if ($path === '' || $path === 'index') {
        echo json_encode(['code' => 0, 'msg' => 'API服务运行正常', 'time' => date('Y-m-d H:i:s')]);
        
    } elseif ($path === 'merchant/nearby') {
        $ctrl = new MerchantController();
        $ctrl->nearby();
        
    } elseif ($path === 'merchant/detail') {
        $ctrl = new MerchantController();
        $ctrl->detail();
        
    } elseif ($path === 'merchant/categories') {
        $ctrl = new MerchantController();
        $ctrl->categories();
        
    } elseif ($path === 'order/create') {
        $ctrl = new OrderController();
        $ctrl->create();
        
    } elseif ($path === 'order/query') {
        $ctrl = new OrderController();
        $ctrl->query();
        
    } elseif ($path === 'order/list') {
        $ctrl = new OrderController();
        $ctrl->list();
        
    } elseif ($path === 'wxpay/notify') {
        $ctrl = new OrderController();
        $ctrl->notify();
        
    } else {
        http_response_code(404);
        echo json_encode(['code' => 404, 'msg' => '接口不存在: ' . $path]);
    }
    
} catch (Exception $e) {
    $logFile = __DIR__ . '/logs/error_' . date('Y-m-d') . '.log';
    file_put_contents($logFile, date('Y-m-d H:i:s') . ' Error: ' . $e->getMessage() . "\n", FILE_APPEND);
    
    http_response_code(500);
    echo json_encode(['code' => 500, 'msg' => '服务器错误: ' . $e->getMessage()]);
}