'use strict';

const fs = require('fs');
const path = require('path');
const Sequelize = require('sequelize');
const basename = path.basename(__filename);
const env = process.env.NODE_ENV || 'development';
const config = require(__dirname + '/../config/config.json')[env];
const models = {};

let sequelize;
if (config.use_env_variable) {
  sequelize = new Sequelize(process.env[config.use_env_variable], config);
} else {
  sequelize = new Sequelize(config.database, config.username, config.password, config);
}

// 반복문을 돌면서 models 내에 있는 파일들을 읽고 그것을 모델로 정의함
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));
      models[model.name] = model;
    });

models.User = require('./user')(sequelize, Sequelize);


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

models.sequelize = sequelize;
models.Sequelize = Sequelize;

module.exports = models;