ermnvldmr.com/services/docs/content/en/quetza/recipes/voice-features.md

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Interactive Voice Features	1

Goal: Implement sophisticated voice interactions that respect guild boundaries and manage ephemeral resources.

1. Resource Scoping Strategy

Voice features MUST be scoped to the Guild.

• Pattern: The Controller maintains a Map<GuildID, Player>.
• Behavior:
  • Join: Create a Player for Guild A if none exists.
  • Leave: Destroy the Player and release connections.
  • Isolation: Commands in Guild B never affect Guild A.

2. Command Orchestration

Voice features require a suite of commands coordinated via the Controller.

Command	Action	Controller Logic
/join	Connect to channel	createPlayer(guildId, channelId)
/play	Add track to queue	getPlayer(guildId).enqueue(track)
/stop	Disconnect	destroyPlayer(guildId)

3. State Persistence

Audio sessions are ephemeral.

• Transient State: Active audio stream (Lost on disconnect).
• Durable State: Queue/Playlist (Persisted in Controller until restart).

[!TIP] > Resilience: Separate the Queue logic from the Voice Connection logic. This allows the bot to reconnect without losing the user's playlist.

4. Implementation Sketch

// lib/MusicController.ts
class MusicController {
  private players = new Map<string, AudioPlayer>();

  getPlayer(guildId: string): AudioPlayer {
    if (!this.players.has(guildId)) {
      this.players.set(guildId, new AudioPlayer());
    }
    return this.players.get(guildId);
  }

  destroyPlayer(guildId: string) {
    this.players.get(guildId)?.disconnect();
    this.players.delete(guildId);
  }
}

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See also:

• Discord.js Voice Guide