'use strict';

const Sequelize = require('sequelize');

module.exports = function (config) {
    const defaultConfig = require('../../config').postgres;
    config = config || defaultConfig;

    if (config) {
        let orm = new Sequelize(config.url, config.opts);
        let dc = {
            orm,
            ORM: Sequelize,
            models: {}
        };
        if (Array.isArray(config.models)) {
            config.models.forEach(fn => {
                fn(dc);
            });
        }
        process.postgres = dc;
        return dc;
    }
};