always return a reponse to discord

src/commands/music/play.ts

@@ -10,7 +10,7 @@ import {
 import { Metadata } from "../../utils/metadata";
 import { getLocale, getLocalizations } from "../../utils/locales";
 import { getFilename } from "../../utils/misc";
-import { Player, useMasterPlayer, useQueue } from "discord-player";
+import { Player, SearchResult, useMasterPlayer, useQueue } from "discord-player";
 
 export default {
   scope: () => [],
@@ -158,20 +158,38 @@ export default {
       loc_default?.get(`c_${filename}_opt1_name`) as string,
       true
     );
-
-    const results = await player.search(query);
-
+    if (query) {
       /* Since Discord wanna receive a response within 3 secs and results is async
        * and can take longer than that, exception of type 'Unknown interaction' (10062)
-     * happens.
-     * TODO: Silently pass the exception */
+       * happens.  */
+
+      let timeoutId: NodeJS.Timeout;
+      const delay = new Promise(function (_, reject) {
+        timeoutId = setTimeout(function () {
+          reject(new Error());
+        }, 2900);
+      });
+
+      /* Create a race between a timeout and the research
+       * At the end, Discord will always receive a response */
+      const tracks = await Promise.race([delay, player.search(query)])
+        .then((res) => {
+          clearTimeout(timeoutId);
+          return (res as SearchResult).tracks;
+        })
+        .catch(() => {
+          return [];
+        });
 
       // Returns a list of songs with their title
       return interaction.respond(
-      results.tracks.slice(0, 10).map((t) => ({
+        tracks.slice(0, 10).map((t) => ({
           name: t.title,
           value: t.url,
         }))
       );
+    } else {
+      return interaction.respond([]);
+    }
   },
 };