import express from 'express';
const router = express.Router();

// POST /api/auth/login — 支持 email/phone/name 登录
router.post('/login', async (req, res) => {
  try {
    const Parse = (globalThis as any).Parse;
    const { identifier, password } = req.body;

    if (!identifier || !password) {
      return res.status(400).json({ success: false, error: '缺少 identifier 或 password' });
    }

    // 1. 先尝试直接用 identifier 作为 username 登录
    try {
      const user = await Parse.User.logIn(identifier, password);
      return res.json({
        success: true,
        data: {
          objectId: user.id,
          username: user.get('username'),
          email: user.get('email'),
          name: user.get('name'),
          role: user.get('role'),
          department: user.get('department'),
          phone: user.get('phone'),
          sessionToken: user.getSessionToken(),
        },
      });
    } catch { /* 继续尝试其他方式 */ }

    // 2. 通过 email 查找
    const q1 = new Parse.Query(Parse.User);
    q1.equalTo('email', identifier);
    let user = await q1.first({ useMasterKey: true });

    // 3. 通过 phone 查找
    if (!user) {
      const q2 = new Parse.Query(Parse.User);
      q2.equalTo('phone', identifier);
      user = await q2.first({ useMasterKey: true });
    }

    // 4. 通过 name 查找
    if (!user) {
      const q3 = new Parse.Query(Parse.User);
      q3.equalTo('name', identifier);
      user = await q3.first({ useMasterKey: true });
    }

    if (!user) {
      return res.status(401).json({ success: false, error: '账户不存在' });
    }

    // 用找到的 username 尝试登录
    try {
      const loggedIn = await Parse.User.logIn(user.get('username'), password);
      return res.json({
        success: true,
        data: {
          objectId: loggedIn.id,
          username: loggedIn.get('username'),
          email: loggedIn.get('email'),
          name: loggedIn.get('name'),
          role: loggedIn.get('role'),
          department: loggedIn.get('department'),
          phone: loggedIn.get('phone'),
          sessionToken: loggedIn.getSessionToken(),
        },
      });
    } catch {
      return res.status(401).json({ success: false, error: '密码错误或账户已停用' });
    }
  } catch (e: any) {
    res.status(500).json({ success: false, error: e.message });
  }
});

// GET /api/auth/me — 获取当前用户
router.get('/me', async (req, res) => {
  try {
    const token = req.headers.authorization?.replace('Bearer ', '') || '';
    if (!token) {
      return res.status(401).json({ success: false, error: '未登录' });
    }
    const Parse = (globalThis as any).Parse;
    const q = new Parse.Query('_Session');
    q.equalTo('sessionToken', token);
    const session = await q.first({ useMasterKey: true });
    if (!session) {
      return res.status(401).json({ success: false, error: 'token 已失效' });
    }
    const user = session.get('user');
    if (user) {
      await user.fetch({ useMasterKey: true });
      res.json({
        success: true,
        data: {
          objectId: user.id,
          username: user.get('username'),
          email: user.get('email'),
          name: user.get('name'),
          role: user.get('role'),
          department: user.get('department'),
          phone: user.get('phone'),
        },
      });
    } else {
      res.status(401).json({ success: false, error: '用户不存在' });
    }
  } catch (e: any) {
    res.status(500).json({ success: false, error: e.message });
  }
});

export default router;