user.js

const bcrypt = require('bcrypt');
const jwt  = require('jsonwebtoken');
const _  = require('lodash');
const SECRET = 'asbadbbdbbh7788888887hb113h3hbb';
const { prisma } = require('../generated/prisma-client')

//add new user
async function allUser(req, res){
  const allUsers = await prisma.users()
  res.send(JSON.stringify({"status": 200, "error": null, 'response': allUsers}));
}

async function register(req, res){
  try
  {
    const user = await prisma.users({
      where: {email: req.body.email}
    })
    console.log('user: ', user);
    if(user.length != 0)
    {
      res.send(JSON.stringify({"status": 302, "error": 'User is found with that email'}));
      return;
    }
    req.body.password = await bcrypt.hash(req.body.password, 12);
    try
    {
      console.log('password: ', req.body.password);
      const user = await prisma.createUser({
        username: req.body.username,
        email: req.body.email,
        password: req.body.password
      })
      res.send(JSON.stringify({"status": 200, "error": null, "response": user.id}));
    }
    catch(e)
    {
      res.send(JSON.stringify({"status": 500, "error": 'In create user '+e, "response": null}));
    }
  }
  catch(e)
  {
    res.send(JSON.stringify({"status": 500, "error": 'In user '+e, "response": null}));
  }     
}

//login
async function login(req, res){
    const user = await prisma.users({
      where: {email: req.body.email}
    })
    console.log('user: ', user);
    if (user.length === 0) 
    {
      res.send(JSON.stringify({"status": 404, "error": 'Not user with that email', "token": null}));
      return;
    }
    const valid = await bcrypt.compare(req.body.password, user[0].password);
    if (!valid){
      res.send(JSON.stringify({"status": 404, "error": 'Incorrect password', "token": null}));
      return;
    }
    // verify: needs SECRET | use for authentication
    // decode: no secret | use for client side 
    const token = jwt.sign({
      user: _.pick(user[0], ['id', 'email']),
    }, 
    SECRET,
    {
      expiresIn: '5m',
    });
    res.send(JSON.stringify({"status": 200, "error": null, "token": token}));
}

//Delete user
async function deleteUser(req, res){
  try
  {
    const user = await prisma.deleteUser({
      id: req.params.id
    })
    res.send(JSON.stringify({"status": 200, "error": null, "response": user.id}));
  }
  catch(e)
  {
    res.send(JSON.stringify({"status": 500, "error": e, "response": null}));
  }
}

module.exports = {
    register,
    login,
    deleteUser,
    allUser
}