@barchart/common-node-js/aws/lambda/LambdaStage.js

Common classes, utilities, and functions for building Node.js servers

const assert = require('@barchart/common-js/lang/assert'),
	Enum = require('@barchart/common-js/lang/Enum'),
	is = require('@barchart/common-js/lang/is');

module.exports = (() => {
	'use strict';

	/**
	 * Defines stage for lambda functions.
	 *
	 * @public
	 * @extends {Enum}
	 * @param {String} code
	 * @param {String} description
	 */
	class LambdaStage extends Enum {
		constructor(code, description) {
			super(code, description);
		}

		/**
		 * Development.
		 *
		 * @static
		 * @returns {LambdaStage}
		 */
		static get DEV() {
			return dev;
		}

		/**
		 * Demo.
		 *
		 * @static
		 * @returns {LambdaStage}
		 */
		static get DEMO() {
			return demo;
		}

		/**
		 * Stage.
		 *
		 * @static
		 * @returns {LambdaStage}
		 */
		static get STAGE() {
			return stage;
		}

		/**
		 * Production.
		 *
		 * @static
		 * @returns {LambdaStage}
		 */
		static get PROD() {
			return prod;
		}

		/**
		 * Returns a stage from name string.
		 *
		 * @public
		 * @static
		 * @param {String} name
		 * @returns {LambdaStage}
		 */
		static getStageFromName(name) {
			assert.argumentIsRequired(name, 'name', String);

			const matches = name.match(/^(.+)-(dev|stage|prod|demo)(-.+|$)$/);

			if (is.array(matches) && matches.length >= 2) {
				const stage = matches[2];

				return Enum.fromCode(LambdaStage, stage);
			} else {
				return LambdaStage.DEV;
			}
		}

		toString() {
			return `[LambdaStage (code=${this.code})]`;
		}
	}

	const dev = new LambdaStage('dev', 'Development');
	const demo = new LambdaStage('demo', 'Demo');
	const stage = new LambdaStage('stage', 'Stage');
	const prod = new LambdaStage('prod', 'Production');

	return LambdaStage;
})();