'use strict'
const AWS = require('aws-sdk');
const model = require('./model/user.js')
const crypto = require('crypto');

exports.handler = function (user, context, callback) {
    console.log(user);
    user = sha512(user);
    console.log(user);
    var dynamodb = new AWS.DynamoDB();
    var dynamoUser = model.User(user);
    console.log("testing this")
    console.log(dynamoUser);
    /*
    dynamodb.putItem(dynamoUser, function(err, data) {
        if (err){
            console.log(err, err.stack); // an error occurred
        context.fail('Failed!')
    }else{
            console.log(data);
            context.succeed('Success!')
        }

      });
*/
}

var sha512 = function(user){
    var salt = genRandomString(32);
    var hash = crypto.createHmac('sha512', salt); /** Hashing algorithm sha512 */
    hash.update(user.password);
    user.password = hash.digest('hex');
    user.salt = salt;
    return user;
};

var genRandomString = function(length){
    return crypto.randomBytes(Math.ceil(length/2))
            .toString('hex') /** convert to hexadecimal format */
            .slice(0,length);   /** return required number of characters */
};