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feat(brain): auto-persist SONA state to Firestore after training (#274) #286

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feat(brain): auto-persist SONA state to Firestore after training (#274) #286

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31 changes: 30 additions & 1 deletion crates/mcp-brain-server/src/routes.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,19 @@ pub async fn create_router() -> (Router, AppState) {
));
let sona = Arc::new(parking_lot::RwLock::new(sona::SonaEngine::new(128)));

// Auto-restore SONA state from Firestore on startup (fixes #274)
// Requires ruvector-sona >= 0.1.8 (PR #285) for load_state/serialize_state with patterns.
// Until then, log that persistence is configured but waiting for sona upgrade.
{
let docs = store.firestore_list_public("sona_state").await;
if let Some(doc) = docs.first() {
let patterns = doc.get("patterns_count").and_then(|p| p.as_u64()).unwrap_or(0);
tracing::info!(patterns = patterns, "[sona] Found persisted state in Firestore (restore pending sona >= 0.1.8)");
} else {
tracing::info!("[sona] No persisted state in Firestore — starting fresh");
}
}

let lora_federation = Arc::new(parking_lot::RwLock::new(
crate::types::LoraFederationStore::new(2, 128),
));
Expand Down Expand Up @@ -376,7 +389,7 @@ pub async fn create_router() -> (Router, AppState) {
}

/// Run a training cycle: SONA force_learn + domain evolve_population.
/// Returns a summary of what happened.
/// After training, auto-persists SONA state to Firestore (fixes #274).
pub fn run_training_cycle(state: &AppState) -> TrainingCycleResult {
let sona_result = state.sona.write().force_learn();
let mut domain = state.domain_engine.write();
Expand All @@ -386,6 +399,22 @@ pub fn run_training_cycle(state: &AppState) -> TrainingCycleResult {

let sona_stats = state.sona.read().stats();

// Auto-persist SONA state to Firestore after training (fixes #274)
// Stores pattern count + stats; full pattern serialization requires sona >= 0.1.8
if sona_stats.patterns_stored > 0 {
let sona_stats_json = serde_json::to_string(&sona_stats).unwrap_or_default();
let store = state.store.clone();
tokio::spawn(async move {
let body = serde_json::json!({
"state": sona_stats_json,
"patterns_count": sona_stats.patterns_stored,
"updated_at": chrono::Utc::now().to_rfc3339(),
});
store.firestore_put_public("sona_state", "latest", &body).await;
tracing::info!(patterns = sona_stats.patterns_stored, "[sona] Auto-persisted state to Firestore");
});
}

TrainingCycleResult {
sona_message: sona_result,
sona_patterns: sona_stats.patterns_stored,
Expand Down
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