<?php
/**
 * 会话校验接口  GET /api/auth/session.php
 * 前端页面加载时调用：未登录返回 401（前端跳转登录页），已登录返回当前用户信息。
 */
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';

requireLogin();

$pdo = DB::getInstance()->getPdo();
$stmt = $pdo->prepare("SELECT last_login_time, last_login_ip FROM system_users WHERE id = ?");
$stmt->execute([(int)$_SESSION['user_id']]);
$loginInfo = $stmt->fetch() ?: [];

Response::success([
    'user_id'         => (int)$_SESSION['user_id'],
    'username'        => $_SESSION['username'],
    'real_name'       => $_SESSION['real_name'],
    'role_name'       => $_SESSION['role_name'],
    'permissions'     => $_SESSION['permissions'],
    'last_login_time' => $loginInfo['last_login_time'] ?? null,
    'last_login_ip'   => $loginInfo['last_login_ip'] ?? null,
]);