passport.js

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



function initPassport(passport, getUserByEmail, getUserById) {
    const authenticateUser = async (email, password, done) => {
        const user = await getUserByEmail(email)
        if( user == null){
            return done (null, false, {message: 'No user with that email'})
        }
        try {
            if (await bcrypt.compare(password, user.password)) {
                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( async (id, done) => {
        const user = await getUserById(id);
        done(null, user);
    })
}

module.exports = initPassport