ES6 index file for sequelize mole

index.js

import fs from 'fs';
import path from 'path';
import Sequelize from 'sequelize';
import configJson from '../config/config';

const basename = path.basename(__filename);
const env = process.env.NODE_ENV ? process.env.NODE_ENV : 'development';

const config = configJson[env];

console.log('this is the environment: ', env);

const db = {};

let sequelize;
if (config.environment === 'production') {
  sequelize = new Sequelize(
      process.env[config.use_env_variable], config
    );
  sequelize = new Sequelize(
    process.env.DB_NAME,
    process.env.DB_USER,
    process.env.DB_PASS, {
      host: process.env.DB_HOST,
      port: process.env.DB_PORT,
      dialect: 'postgres',
      dialectOption: {
        ssl: true,
        native: true
      },
      logging: true
    }
  );
} else {
  sequelize = new Sequelize(
     config.database, config.username, config.password, config
  );
}

fs
  .readdirSync(__dirname)
  .filter((file) => {
    return (file.indexOf('.') !== 0) && 
           (file !== basename) && (file.slice(-3) === '.js');
  })
  .forEach((file) => {
    const model = sequelize.import(path.join(__dirname, file));
    db[model.name] = model;
  });

Object.keys(db).forEach((modelName) => {
  if (db[modelName].associate) {
    db[modelName].associate(db);
  }
});

db.sequelize = sequelize;
db.Sequelize = Sequelize;

export default db;