passport-config.js

const LocalStrategy = require('passport-local').Strategy
const bcrpyt = require('bcrypt')

// add async in front of function?? 
async function initialize(passport, getUserByEmail, getUserById){
    const authenticateUser = async (email, password, done) => {        
        const user = getUserByEmail(email)
        if (user == null) {
            return done(null, false, { message: 'no user with email' })
        }
        try { 
            if(await bcrpyt.compare(password, user.password)) {
                res.send('Success')
                return done(null, user)
            } else { 
                return done(null, false, {message: 'password incorrect'})
            }
        } catch (e) {
            return done(e)
        }

    passport.use(new LocalStrategy({ usernameField: 'email'},
    authenticateUser))
    passport.serializeUser((user, done) => done(null, user.id))
    passport.deserializeUser((id, done) => {
        return done(null, getUserById(id))
        })
    }  
}

module.exports = initialize