feat: Implement NATS-based event processing for note smart features and add Qdrant collection auto-creation.

notes-worker/src/main.rs

@@ -1,3 +1,4 @@
+use futures_util::StreamExt;
 use notes_domain::services::SmartNoteService;
 use notes_infra::{
     DatabaseConfig,
@@ -10,8 +11,18 @@ use crate::config::Config;
 
 mod config;
 
+use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
+
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
+    tracing_subscriber::registry()
+        .with(
+            tracing_subscriber::EnvFilter::try_from_default_env()
+                .unwrap_or_else(|_| "notes_worker=info,notes_infra=info".into()),
+        )
+        .with(tracing_subscriber::fmt::layer())
+        .init();
+
     let config = Config::from_env();
     let nats_client = async_nats::connect(&config.broker_url).await?;
     let db_config = DatabaseConfig::new(config.database_url.clone());
@@ -29,8 +40,27 @@ async fn main() -> anyhow::Result<()> {
         config.embedding_provider
     );
 
-    // subscribe to jobs and process them
-    // (Future: consume NATS messages and call smart_service.process_note(&note))
+    // Subscribe to note update events
+    let mut subscriber = nats_client.subscribe("notes.updated").await?;
+    tracing::info!("Worker listening on 'notes.updated'...");
+
+    while let Some(msg) = subscriber.next().await {
+        // Parse message payload (assuming the payload IS the Note JSON)
+        let note_result: Result<notes_domain::Note, _> = serde_json::from_slice(&msg.payload);
+
+        match note_result {
+            Ok(note) => {
+                tracing::info!("Processing smart features for note: {}", note.id);
+                match smart_service.process_note(&note).await {
+                    Ok(_) => tracing::info!("Successfully processed note {}", note.id),
+                    Err(e) => tracing::error!("Failed to process note {}: {}", note.id, e),
+                }
+            }
+            Err(e) => {
+                tracing::error!("Failed to deserialize note from message: {}", e);
+            }
+        }
+    }
 
     Ok(())
 }