const db = require("../models");
const bcrypt = require("bcryptjs");
const jwt = require("jsonwebtoken");
require("dotenv").config();

const User = db.user;
const EstablishmentUser = db.EstablishmentUser;
const Establishment = db.Establishment;

// Register new user
exports.register = async (req, res) => {
  try {
    const { name, email, password } = req.body;
    if (!name || !email || !password)
      return  res.status(400).send({'status':"failed",'message':"All fields required",'data': ""}); 

    const existing = await User.findOne({ where: { email } });
    if (existing) res.status(400).send({'status':"failed",'message':"Email already used",'data': ""});  

    const hashedPassword = await bcrypt.hash(password, 10);
    const newUser = await User.create({ name, email, password: hashedPassword });

    res.status(201).send({'status':"success",'message':"User registered successfully",'data': newUser }); 
  } catch (err) {
    res.status(500).send({'status':"failed",'message':err.message });
  }
};

// Login user
exports.login = async (req, res) => {
  try {
    const { email, password } = req.body;

    userRole = 'EstablishmentUser'
    userData = await EstablishmentUser.findOne({ where: { email, is_active : { [Op.or]: [true, 1] } } });
    if (!userData) {
      userData = await User.findOne({ where: { email, is_active : { [Op.or]: [true, 1] } } });
      userRole = 'Admin'
      if (!userData) res.status(404).send({'status':"failed",'message':"User not found",'data': ""}); 
    }
    
    
    const validPass = await bcrypt.compare(password, userData.password);
    if (!validPass)  res.status(401).send({'status':"failed",'message':"Invalid password",'data': ""}); 


    if(userRole == 'Admin')
    {
      tokenData = { id: userData.id, email: userData.email , name: userData.name , role : userRole , last_login : userData.last_login }
      await User.update({ last_login : Date() }, { where: { id: userData.id } });
    }else{
      const establishment_data = await Establishment.findByPk(userData.establishment_id);
      tokenData = { id: userData.id, email: userData.email , name: userData.name , role : userRole , establishment_id: userData.establishment_id , establishment_data , last_login : userData.last_login }
      await EstablishmentUser.update({ last_login : Date(),  updated_at: new Date() }, { where: { id: userData.id } });
    }

    const token = jwt.sign(tokenData, process.env.JWT_SECRET, {
      expiresIn: "6h",
    });

    res.status(200).send({'status':"success",'message':"Login successful",'data': token }); 

  } catch (err) {
    res.status(500).send({'status':"failed",'message':err.message });
  }
};