* Subscribe to session updates
(sessionId: string, callback: SessionSubscriber)
| 102 | * Subscribe to session updates |
| 103 | */ |
| 104 | subscribe(sessionId: string, callback: SessionSubscriber): () => void { |
| 105 | if (!this.subscribers.has(sessionId)) { |
| 106 | this.subscribers.set(sessionId, new Set()); |
| 107 | } |
| 108 | |
| 109 | this.subscribers.get(sessionId)!.add(callback); |
| 110 | |
| 111 | // Return unsubscribe function |
| 112 | return () => { |
| 113 | const subs = this.subscribers.get(sessionId); |
| 114 | if (subs) { |
| 115 | subs.delete(callback); |
| 116 | if (subs.size === 0) { |
| 117 | this.subscribers.delete(sessionId); |
| 118 | } |
| 119 | } |
| 120 | }; |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Notify subscribers of session updates |