floriday/models/sequelize.js

import { Sequelize } from 'sequelize';
import dotenv from 'dotenv';
import chalk from 'chalk';
import ora from 'ora';
import { criticalError, updateClientConfig } from '../utils.js';

dotenv.config();
const env = process.env;

console.clear()
console.log(chalk.hex('#06c581')(
	`
	███████ ██      ██████  ██████  ██ ██████   █████  ██    ██     ██
	██      ██     ██    ██ ██   ██ ██ ██   ██ ██   ██ ██    ██    ██  ███
	█████   ██     ██    ██ ██████  ██ ██   ██ ███████  ███████       ███
	██      ██     ██    ██ ██   ██ ██ ██   ██ ██   ██       ██     ████
	██      ██████  ██████  ██   ██ ██ ██████  ██   ██ ███████     ██
	`
))

let sequelize, conSpinner
try {
	conSpinner = ora('Creating database connection...').start();
	sequelize = createConn();
	await checkConn();
	conSpinner.succeed();
} catch (err) {
	conSpinner.fail();
	criticalError(err);
}

// Supply Line Models
import supplyLine from './supplyLine/supplyLine.js';
import volumePrices from './supplyLine/volumePrices.js';

// Conf Models
import clientConfig from './conf/clientConfig.js';
import sequenceNumber from './conf/sequenceNumber.js';

// Supplier Models
import supplier from './supplier/supplier.js';
import connections from './supplier/connections.js';

// TradeItem Models
import tradeItem from './tradeItem/tradeItem.js';
import botanicalNames from './tradeItem/botanicalNames.js';
import countryOfOriginIsoCodes from './tradeItem/countryOfOriginIsoCodes.js';
import packageModel from './tradeItem/package.js';
import packingConfigurations from './tradeItem/packingConfigurations.js';
import photos from './tradeItem/photos.js';
import seasonalPeriod from './tradeItem/seasonalPeriod.js';
import characteristics from './tradeItem/characteristics.js';

/**
 * Contains all the models that are related to the application.
 * 
 * @example
 * models.@modelName@.findAll();
 * 
 * @example
 * models.tradeItem.findAll().then((data) => {
 *    console.log(data);
 * });
 * 
 * @example
 * models.tradeItem.create({
 *   tradeItemName: 'Test',
 *   foo: 'bar',
 * });
 * 
 * 
 * @type {Object.<string, Sequelize.Model>}
 */
let models = {
	sequelize: sequelize,
	tradeItem: tradeItem(sequelize),
	packingConfiguration: packingConfigurations(sequelize),
	photo: photos(sequelize),
	characteristic: characteristics(sequelize),
	countryOfOriginIsoCode: countryOfOriginIsoCodes(sequelize),
	package: packageModel(sequelize),
	seasonalPeriod: seasonalPeriod(sequelize),
	clientConfig: clientConfig(sequelize),
	botanicalName: botanicalNames(sequelize),
	supplyLine: supplyLine(sequelize),
	volumePrices: volumePrices(sequelize),
	supplier: supplier(sequelize),
	sequenceNumber: sequenceNumber(sequelize),
	connection: connections(sequelize),
};

try {
	/* Remove ID atribute from models */
	models.characteristic.removeAttribute('id');
	models.seasonalPeriod.removeAttribute('id');
	models.package.removeAttribute('id');
	models.botanicalName.removeAttribute('id');
	models.countryOfOriginIsoCode.removeAttribute('id');
	/* ------------------------------ */

	models.characteristic.belongsTo(models.tradeItem, {
		foreignKey: 'tradeItemId',
		as: 'tradeItem_Fk',
		targetKey: 'tradeItemId',
	});

	models.seasonalPeriod.belongsTo(models.tradeItem, {
		foreignKey: 'tradeItemId',
		as: 'tradeItem_Fk',
		targetKey: 'tradeItemId',
	});

	models.photo.belongsTo(models.tradeItem, {
		foreignKey: 'tradeItemId',
		as: 'tradeItem_Fk',
		targetKey: 'tradeItemId',
	});

	models.packingConfiguration.belongsTo(models.tradeItem, {
		foreignKey: 'tradeItemId',
		as: 'tradeItem_Fk',
		targetKey: 'tradeItemId',
	});

	models.packingConfiguration.hasMany(models.package, {
		foreignKey: 'packingConfigurationFk',
		as: 'package_Fk',
		targetKey: 'packingConfigurationId',
	});

	models.package.belongsTo(models.packingConfiguration, {
		foreignKey: 'packingConfigurationFk',
		as: 'packingConfiguration_Fk',
		targetKey: 'packingConfigurationId',
	});

	models.botanicalName.belongsTo(models.tradeItem, {
		foreignKey: 'tradeItemId',
		as: 'tradeItem_Fk',
		targetKey: 'tradeItemId',
	});

	models.countryOfOriginIsoCode.belongsTo(models.tradeItem, {
		foreignKey: 'tradeItemId',
		as: 'tradeItem_Fk',
		targetKey: 'tradeItemId',
	});

	models.volumePrices.belongsTo(models.supplyLine, {
		foreignKey: 'supplyLineId',
		as: 'supplyLine_Fk',
		targetKey: 'supplyLineId',
	});

	models.supplyLine.belongsTo(models.tradeItem, {
		foreignKey: 'tradeItemId',
		as: 'tradeItem_Fk',
		targetKey: 'tradeItemId',
	});

	models.tradeItem.belongsTo(models.supplier, {
		foreignKey: 'supplierOrganizationId',
		as: 'supplierOrganization_Id',
		targetKey: 'supplierOrganizationId',
	});

	models.supplyLine.belongsTo(models.supplier, {
		foreignKey: 'supplierOrganizationId',
		as: 'supplierOrganization_Id',
		targetKey: 'supplierOrganizationId',
	});
} catch (err) {
	criticalError(err);
}

let action, isForce;
if (JSON.parse(env.FORCE_SYNC)) {
	action = 'Forcing'
	isForce = true
} else {
	action = 'Altering'
	isForce = false
}

const modSpinner = ora(`${action} models...`).start();
try {
	await sequelize.sync({ force: isForce });
	modSpinner.succeed();
}
catch (err) {
	modSpinner.fail();
	criticalError(err);
}

/**
 * Creates the connection to the database.
 * 
 * @returns {Sequelize} Sequelize instance with the connection to the database.
 */
function createConn() {
	return new Sequelize(env.DB_SCHEMA, env.DB_USER, env.DB_PWD, {
		host: env.DB_HOST,
		dialect: env.DB_DIALECT,
		logging: false,
		pool: {
			max: parseInt(env.DB_MAX_CONN_POOL),
			acquire: 60000,
			idle: 10000,
		},
		timezone: env.DB_TIMEZONE,
	});
}

/**
 * Check if connection is ok
 */
async function checkConn() {
	try {
		await sequelize.authenticate();
	} catch (err) {
		throw new Error (err);
	} 
}

/**
 * Close the connection to the database
 */
async function closeConn() {
	const spinner = ora('Closing database connection...').start();
	try {
		await sequelize.close()
		spinner.succeed();
	} catch (err) {
		spinner.fail();
		criticalError(err)
	}
}

export { models, checkConn, closeConn};