Add support for playing Spotify URLs by searching same song on YouTube (

#30)

Co-authored-by: sweep-ai[bot] <128439645+sweep-ai[bot]@users.noreply.github.com>
Co-authored-by: Lassi Säike <lassisaike11@gmail.com>

package.json

@@ -86,6 +86,8 @@
     "ts-node": "^10.5.0",
     "tslint": "^6.1.3",
     "typedoc": "^0.22.11",
-    "typescript": "^4.5.5"
+    "typescript": "^4.5.5",
+    "spotify-uri": "^4.0.0",
+    "spotify-url-info": "^3.2.6"
   }
-}
+}

src_modules/player/commands/PlayCommand.ts

@@ -11,6 +11,8 @@ import ytpl = require("@distube/ytpl");
 import ytsr = require("@distube/ytsr");
 import fetch from "node-fetch";
 import { Readable } from "stream";
+import * as spotifyUri from 'spotify-uri';
+const { getPreview } = require('spotify-url-info')(fetch);
 
 export class PlayCommand extends Command<[StringArgument<false>]> {
     private player: PlayerModule;
@@ -90,6 +92,12 @@ export class PlayCommand extends Command<[StringArgument<false>]> {
                 return;
             }
             return [item];
+        } else if (this.isSpotifyUrl(query)) {
+            const item = await this.getQueueItemFromSpotifyUrl(query, context);
+            if (!item) {
+                return context.respond(musicNotFoundPhrase, { search: query });
+            }
+            return [item];
         } else {
             const item = await this.getQueueItemFromDirectUrl(query);
             if (!item) {
@@ -99,6 +107,16 @@ export class PlayCommand extends Command<[StringArgument<false>]> {
         }
     }
 
+    private isSpotifyUrl(url: string): boolean {
+        try {
+            spotifyUri.parse(url);
+
+            return true;
+        } catch {
+            return false;
+        }
+    }
+
     private async searchYoutube(query: string, context: ICommandContext): Promise<PlayerQueueItem | undefined> {
         const respondPromise = context.respond(musicSearchingPhrase, { search: query });
         let searchResult: ytsr.VideoResult;
@@ -192,6 +210,19 @@ export class PlayCommand extends Command<[StringArgument<false>]> {
         return new PlayerQueueItem(itemDetails, ytdlResult);
     }
 
+    private async getQueueItemFromSpotifyUrl(url: string, context: ICommandContext): Promise<PlayerQueueItem | undefined> {
+        try {
+            const parsed = spotifyUri.parse(url);
+            const openUrl = spotifyUri.formatOpenURL(parsed);
+
+            const data = await getPreview(openUrl);
+
+            return this.searchYoutube(`${data.artist} - ${data.title}`, context);
+        } catch {
+            return undefined;
+        }
+    }
+
     private async getQueueItemFromDirectUrl(url: string): Promise<PlayerQueueItem | undefined> {
         let itemDetails: IQueueItemDetails;
         const urlObj = new URL(url);
@@ -226,4 +257,4 @@ export class PlayCommand extends Command<[StringArgument<false>]> {
         };
         return new PlayerQueueItem(itemDetails);
     }
-}
+}

src_modules/player/index.ts

@@ -1,5 +1,5 @@
 // extcord module
-// requires ffmpeg-static@^5.1.0 @distube/ytdl-core@^4.11.17 @distube/ytsr@^1.1.9 @distube/ytpl@^1.1.1
+// requires ffmpeg-static@^5.1.0 @distube/ytdl-core@^4.11.17 @distube/ytsr@^1.1.9 @distube/ytpl@^1.1.1 spotify-uri@^4.0.0 spotify-url-info@^3.2.6
 
 import {
     AudioPlayerStatus, createAudioPlayer,