const express = require("express");
const jwt = require("jsonwebtoken");
const { User } = require("../models"); // Import from models/index.js to get models with associations
const router = express.Router();

router.post("/register", async (req, res) => {
  try {
    const { username, email, password, firstName, lastName, phone } = req.body;

    const existingUser = await User.findOne({
      where: {
        [require("sequelize").Op.or]: [{ email }, { username }],
      },
    });

    if (existingUser) {
      return res.status(400).json({ error: "User already exists" });
    }

    const user = await User.create({
      username,
      email,
      password,
      firstName,
      lastName,
      phone,
    });

    const token = jwt.sign({ id: user.id }, process.env.JWT_SECRET, {
      expiresIn: "7d",
    });

    res.status(201).json({
      user: {
        id: user.id,
        username: user.username,
        email: user.email,
        firstName: user.firstName,
        lastName: user.lastName,
      },
      token,
    });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

router.post("/login", async (req, res) => {
  try {
    const { email, password } = req.body;

    const user = await User.findOne({ where: { email } });

    if (!user || !(await user.comparePassword(password))) {
      return res.status(401).json({ error: "Invalid credentials" });
    }

    const token = jwt.sign({ id: user.id }, process.env.JWT_SECRET, {
      expiresIn: "7d",
    });

    res.json({
      user: {
        id: user.id,
        username: user.username,
        email: user.email,
        firstName: user.firstName,
        lastName: user.lastName,
      },
      token,
    });
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

module.exports = router;