feat: synced lyrics (#142)

Close #134

Implement synced lyrics

Reviewed-on: #142
Co-authored-by: Mylloon <kennel.anri@tutanota.com>
Co-committed-by: Mylloon <kennel.anri@tutanota.com>

src/commands/music/lyrics.ts

@@ -56,6 +56,15 @@ export default {
                 .setDescriptionLocalizations(getLocalizations(client, `c_${filename}_opt1_desc`)),
             ),
         )
+
+        // Synced
+        .addSubcommand((subcommand) =>
+          subcommand
+            .setName(loc_default.get(`c_${filename}_sub3_name`)?.toLowerCase() ?? "")
+            .setDescription(loc_default.get(`c_${filename}_sub3_desc`) ?? "")
+            .setNameLocalizations(getLocalizations(client, `c_${filename}_sub3_name`, true))
+            .setDescriptionLocalizations(getLocalizations(client, `c_${filename}_sub3_desc`)),
+        )
     );
   },
 
@@ -73,6 +82,7 @@ export default {
     await interaction.deferReply();
 
     const player = useMainPlayer() as Player;
+    const queue = useQueue(interaction.guildId ?? "");
     if (request) {
       if (
         interaction.options.getSubcommand() ==
@@ -88,22 +98,50 @@ export default {
       } catch {
         return await interaction.followUp(`❌ | ${loc.get("c_lyrics2")} \`${request}\``);
       }
-    } else {
-      const queue = useQueue(interaction.guildId ?? "");
-      if (queue) {
-        const track = queue.history.currentTrack;
-        if (track) {
-          try {
-            data = await player.lyrics.search({
-              q: track.cleanTitle + " " + queue.history.currentTrack?.author,
-            });
-          } catch {
-            return await interaction.followUp(`❌ | ${loc.get("c_lyrics2")} \`${track.title}\``);
-          }
+    } else if (queue) {
+      const track = queue.history.currentTrack;
+      if (track) {
+        try {
+          data = await player.lyrics.search({
+            q: track.cleanTitle + " " + queue.history.currentTrack?.author,
+          });
+        } catch {
+          return await interaction.followUp(`❌ | ${loc.get("c_lyrics2")} \`${track.title}\``);
         }
       }
     }
 
+    if (
+      interaction.options.getSubcommand() ==
+        loc_default?.get(`c_${filename}_sub3_name`)?.toLowerCase() ??
+      ""
+    ) {
+      if (queue === null) {
+        return await interaction.followUp(`❌ | ${loc.get("c_lyrics1")}`);
+      }
+
+      if (data === null || !data[0].syncedLyrics) {
+        return await interaction.followUp(`❌ | ${loc.get("c_lyrics3")} \`${request}\``);
+      }
+
+      // Load lyrics
+      const syncedLyrics = queue?.syncedLyrics(data[0]);
+
+      syncedLyrics?.onChange(async (lyrics) => {
+        await interaction.channel?.send({
+          content: `[${data[0].trackName}]: ${lyrics}`,
+        });
+      });
+
+      // Live update
+      syncedLyrics.subscribe();
+
+      return await interaction.followUp({
+        content: `🎤 | ${loc.get("c_lyrics4")}`,
+        ephemeral: true,
+      });
+    }
+
     if (data && data.length > 0) {
       const title = data[0];
       const limit_desc = 4096;

src/locales/en-US.json

@@ -134,10 +134,14 @@
 
   "c_lyrics_name": "lyrics",
   "c_lyrics_desc": "Displays the lyrics of a song",
+  "c_lyrics_sub3_name": "synced",
+  "c_lyrics_sub3_desc": "Synchronized lyrics search (updates in live)",
   "c_lyrics_opt1_name": "song",
   "c_lyrics_opt1_desc": "Wanted song",
   "c_lyrics1": "The bot is not playing anything at the moment and no songs are specified.",
   "c_lyrics2": "Unable to find the lyrics for",
+  "c_lyrics3": "Impossible to find synchronized lyrics for",
+  "c_lyrics4": "It's karaoke time!",
 
   "c_repeat_name": "repeat",
   "c_repeat_desc": "Command for the type of music repetition",

src/locales/fr.json

@@ -141,10 +141,14 @@
   "c_lyrics_sub1_desc": "Recherche de paroles",
   "c_lyrics_sub2_name": "romanized",
   "c_lyrics_sub2_desc": "Recherche de paroles romanisée (ex: hangul -> latin)",
+  "c_lyrics_sub3_name": "synced",
+  "c_lyrics_sub3_desc": "Recherche de paroles synchronisée (se met à jour avec la chanson en direct)",
   "c_lyrics_opt1_name": "chanson",
   "c_lyrics_opt1_desc": "Chanson recherchée",
   "c_lyrics1": "Le bot ne joue rien en ce moment et aucune chanson n'est renseignée.",
   "c_lyrics2": "Impossible de trouver les paroles pour",
+  "c_lyrics3": "Impossible de trouver les paroles synchronisées pour",
+  "c_lyrics4": "C'est parti !",
 
   "c_repeat_name": "repeat",
   "c_repeat_desc": "Commande relative à la répétition des musiques",