feat: centralize isPlaylistUrl function as a helper that could be upgraded in the future

server/controller/info.controller.js

@@ -2,6 +2,7 @@ const { fetchInfo } = require("../services/info.services");
 const { parseVideo, parsePlaylist } = require("../helpers/parseInfo.helpers");
 const { logger } = require("../logger");
 const { isValidUrl } = require("../helpers/validation.helpers");
+const {isUrlPlaylist} = require("../helpers/playlist.helpers");
 
 /**
  * Handles metadata retrieval for a video or playlist.
@@ -36,7 +37,7 @@ async function infoController(req, res) {
     logger.info(`Info request received. ENCODED: ${encodedUrl}`);
 
     // Lightweight heuristic to detect playlist URLs. It works for Youtube.
-    const isPlaylistUrl = url.includes("&list") || url.includes("?list");
+    const isPlaylistUrl = isUrlPlaylist(url);
 
     logger.info(
         isPlaylistUrl

server/helpers/playlist.helpers.js

@@ -0,0 +1,12 @@
+/**
+ * Determines whether a URL targets a playlist.
+ *
+ * The detection is based on the presence of the YouTube
+ * playlist query parameter (`list`).
+ *
+ * @param {string} url - URL to inspect.
+ * @returns {boolean} True if the URL appears to be a playlist.
+ */
+export function isUrlPlaylist(url) {
+    return url.includes("?list=") || url.includes("&list=") || url.includes("@");
+}

server/services/download.services.js

@@ -7,6 +7,7 @@ const notify = require("../helpers/notify.helpers");
 const path = require("path");
 const { isSafePath } = require("../helpers/validation.helpers");
 const {reloadFeatures} = require("../../config");
+const {isUrlPlaylist} = require("../helpers/playlist.helpers");
 
 /**
  * Reference to the currently running yt-dlp process.
@@ -18,19 +19,6 @@ const {reloadFeatures} = require("../../config");
  */
 let currentDownloadProcess = null;
 
-/**
- * Determines whether a URL targets a playlist.
- *
- * The detection is based on the presence of the YouTube
- * playlist query parameter (`list`).
- *
- * @param {string} url - URL to inspect.
- * @returns {boolean} True if the URL appears to be a playlist.
- */
-function isPlaylistUrl(url) {
-  return url.includes("?list=") || url.includes("&list=");
-}
-
 /**
  * Creates a dedicated download folder for a playlist.
  *
@@ -160,7 +148,7 @@ function fetchDownload(options, progressListeners, speedListeners, stageListener
     }
 
     // Détecte si c'est une playlist et crée un dossier approprié
-    const isPlaylist = options.playlistTitle || isPlaylistUrl(options.url);
+    const isPlaylist = options.playlistTitle || isUrlPlaylist(options.url);
 
     if (isPlaylist && userConfig.createPlaylistFolders) {
       try {