CJS -> ESM

utils/flake.js

@@ -1,7 +1,3 @@
-const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
+export const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
 
-const randomBool = (chance_of_failure = 0.25) => Math.random() < chance_of_failure;
-
-module.exports = {
-  sleep, randomBool
-};
+export const randomBool = (chance_of_failure = 0.25) => Math.random() < chance_of_failure;

utils/generateRandString.js

@@ -3,7 +3,7 @@
  * @param  {number} length The length of the string
  * @return {string} The generated string
  */
-module.exports = (length) => {
+export default (length) => {
   const possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
   let text = "";
 

utils/graph.js

@@ -1,6 +1,7 @@
-const logger = require("./logger")(module);
+import curriedLogger from "./logger.js";
+const logger = curriedLogger(import.meta);
 
-const typedefs = require("../typedefs");
+import * as typedefs from "../typedefs.js";
 
 /**
  * Directed graph, may or may not be connected.
@@ -21,7 +22,7 @@ const typedefs = require("../typedefs");
  * console.log(g.detectCycle()); // true
  * ```
 */
-class myGraph {
+export class myGraph {
   /**
    * @param {string[]} nodes Graph nodes IDs
    * @param {{ from: string, to: string }[]} edges Graph edges b/w nodes
@@ -156,4 +157,4 @@ class myGraph {
   }
 }
 
-module.exports = myGraph;
+export default myGraph;

utils/jsonTransformer.js

@@ -5,7 +5,7 @@
  * @param {string} delimiter Delimiter of final string
  * @returns {string}
  */
-const getNestedValuesString = (obj, delimiter = ", ") => {
+export const getNestedValuesString = (obj, delimiter = ", ") => {
   let values = [];
   for (key in obj) {
     if (typeof obj[key] !== "object") {
@@ -17,7 +17,3 @@ const getNestedValuesString = (obj, delimiter = ", ") => {
 
   return values.join(delimiter);
 }
-
-module.exports = {
-  getNestedValuesString
-}

utils/logger.js

@@ -1,10 +1,10 @@
-const path = require("path");
+import path from "path";
+
+import { createLogger, transports, config, format } from "winston";
+import * as typedefs from "../typedefs.js";
 
-const { createLogger, transports, config, format } = require("winston");
 const { combine, label, timestamp, printf, errors } = format;
 
-const typedefs = require("../typedefs");
-
 const getLabel = (callingModule) => {
   if (!callingModule.filename) return "repl";
   const parts = callingModule.filename?.split(path.sep);
@@ -35,9 +35,9 @@ const logFormat = printf(({ level, message, label, timestamp, ...meta }) => {
 
 /**
  * Creates a curried function, and call it with the module in use to get logs with filename
- * @param {typedefs.Module} callingModule The module from which the logger is called
+ * @param {typedefs.Module} callingModule The module from which the logger is called (ESM - import.meta)
  */
-const curriedLogger = (callingModule) => {
+export const curriedLogger = (callingModule) => {
   let winstonLogger = createLogger({
     levels: config.npm.levels,
     format: combine(
@@ -49,12 +49,12 @@ const curriedLogger = (callingModule) => {
     transports: [
       new transports.Console({ level: "info" }),
       new transports.File({
-        filename: __dirname + "/../logs/debug.log",
+        filename: import.meta.dirname + "/../logs/debug.log",
         level: "debug",
         maxsize: 10485760,
       }),
       new transports.File({
-        filename: __dirname + "/../logs/error.log",
+        filename: import.meta.dirname + "/../logs/error.log",
         level: "error",
         maxsize: 1048576,
       }),
@@ -64,4 +64,4 @@ const curriedLogger = (callingModule) => {
   return winstonLogger;
 }
 
-module.exports = curriedLogger;
+export default curriedLogger;

utils/spotifyUriTransformer.js

@@ -1,4 +1,4 @@
-const typedefs = require("../typedefs");
+import * as typedefs from "../typedefs.js";
 
 /** @type {RegExp} */
 const base62Pattern = /^[A-Za-z0-9]+$/;
@@ -10,7 +10,7 @@ const base62Pattern = /^[A-Za-z0-9]+$/;
  * @returns {typedefs.URIObject}
  * @throws {TypeError} If the input is not a valid Spotify URI
  */
-const parseSpotifyURI = (uri) => {
+export const parseSpotifyURI = (uri) => {
   const parts = uri.split(":");
 
   if (parts[0] !== "spotify") {
@@ -59,7 +59,7 @@ const parseSpotifyURI = (uri) => {
  * @returns {typedefs.URIObject}
  * @throws {TypeError} If the input is not a valid Spotify link
  */
-const parseSpotifyLink = (link) => {
+export const parseSpotifyLink = (link) => {
   const localPattern = /^https:\/\/open\.spotify\.com\/local\/([^\/]*)\/([^\/]*)\/([^\/]+)\/(\d+)$/;
   const standardPattern = /^https:\/\/open\.spotify\.com\/([^\/]+)\/([^\/?]+)/;
 
@@ -106,7 +106,7 @@ const parseSpotifyLink = (link) => {
  * @param {typedefs.URIObject} uriObj
  * @returns {string}
  */
-const buildSpotifyURI = (uriObj) => {
+export const buildSpotifyURI = (uriObj) => {
   if (uriObj.is_local) {
     const artist = encodeURIComponent(uriObj.artist ?? "");
     const album = encodeURIComponent(uriObj.album ?? "");
@@ -122,7 +122,7 @@ const buildSpotifyURI = (uriObj) => {
  * @param {typedefs.URIObject} uriObj
  * @returns {string}
  */
-const buildSpotifyLink = (uriObj) => {
+export const buildSpotifyLink = (uriObj) => {
   if (uriObj.is_local) {
     const artist = encodeURIComponent(uriObj.artist ?? "");
     const album = encodeURIComponent(uriObj.album ?? "");
@@ -132,10 +132,3 @@ const buildSpotifyLink = (uriObj) => {
   }
   return `https://open.spotify.com/${uriObj.type}/${uriObj.id}`
 }
-
-module.exports = {
-  parseSpotifyURI,
-  parseSpotifyLink,
-  buildSpotifyURI,
-  buildSpotifyLink
-}