user i models liten u

let mongoose = require("mongoose"),
    bcrypt = require('bcrypt-nodejs');
    // SALT_WORK_FACTOR = 10;


    /* Creating Schema for the  user */
let userSchema = new mongoose.Schema({
    username: { type: String, required: true, unique: true},
    password: { type: String, required: true, unique: true },
    createdAt: {type: Date, required: true, default: Date.now}
});

/* Checks and validates the password againts the requirements */
userSchema.path("password").validate(function(password) {
    return password.length >= 8;
}, "The password must be of minimum length 8 characters.");


userSchema.pre('save', function(next) {
    let user = this;
    bcrypt.genSalt(10, function(err, salt) {
        if(err) { return next(err); }

        // Using https://www.npmjs.com/package/bcrypt-nodejs
        bcrypt.hash(user.password, salt, null, function(err, hash) {
            if(err) { return next(err); }

            /* Makes the password to hash */
            user.password = hash;
            next();
        });
    });
});


let user = mongoose.model('user', userSchema);
module.exports = user;