Move prefixes table maintenance from DBHandler to PrefixHandler

- DBHandler now only maintains asns and asn_peerings tables
- PrefixHandler maintains both prefixes and live_routes tables
- This consolidates all prefix-related operations in one handler

internal/routewatch/dbhandler.go

@@ -27,7 +27,6 @@ type DBHandler struct {
 
 	// Batching
 	mu           sync.Mutex
-	prefixBatch  []prefixOp
 	asnBatch     []asnOp
 	peeringBatch []peeringOp
 	lastFlush    time.Time
@@ -35,11 +34,6 @@ type DBHandler struct {
 	wg           sync.WaitGroup
 }
 
-type prefixOp struct {
-	prefix    string
-	timestamp time.Time
-}
-
 type asnOp struct {
 	number    int
 	timestamp time.Time
@@ -59,7 +53,6 @@ func NewDBHandler(
 	h := &DBHandler{
 		db:           db,
 		logger:       logger,
-		prefixBatch:  make([]prefixOp, 0, batchSize),
 		asnBatch:     make([]asnOp, 0, batchSize),
 		peeringBatch: make([]peeringOp, 0, batchSize),
 		lastFlush:    time.Now(),
@@ -99,60 +92,41 @@ func (h *DBHandler) HandleMessage(msg *ristypes.RISMessage) {
 	h.mu.Lock()
 	defer h.mu.Unlock()
 
-	// Queue operations for announcements
-	for _, announcement := range msg.Announcements {
-		for _, prefix := range announcement.Prefixes {
-			// Queue prefix operation
-			h.prefixBatch = append(h.prefixBatch, prefixOp{
-				prefix:    prefix,
-				timestamp: timestamp,
-			})
-
-			// Queue origin ASN operation
-			if originASN > 0 {
-				h.asnBatch = append(h.asnBatch, asnOp{
-					number:    originASN,
-					timestamp: timestamp,
-				})
-			}
-
-			// Process AS path to queue peering operations
-			if len(msg.Path) > 1 {
-				for i := range len(msg.Path) - 1 {
-					fromASN := msg.Path[i]
-					toASN := msg.Path[i+1]
-
-					// Queue ASN operations
-					h.asnBatch = append(h.asnBatch, asnOp{
-						number:    fromASN,
-						timestamp: timestamp,
-					})
-					h.asnBatch = append(h.asnBatch, asnOp{
-						number:    toASN,
-						timestamp: timestamp,
-					})
-
-					// Queue peering operation
-					h.peeringBatch = append(h.peeringBatch, peeringOp{
-						fromASN:   fromASN,
-						toASN:     toASN,
-						timestamp: timestamp,
-					})
-				}
-			}
-		}
-	}
-
-	// Queue operations for withdrawals
-	for _, prefix := range msg.Withdrawals {
-		h.prefixBatch = append(h.prefixBatch, prefixOp{
-			prefix:    prefix,
+	// Queue origin ASN operation
+	if originASN > 0 {
+		h.asnBatch = append(h.asnBatch, asnOp{
+			number:    originASN,
 			timestamp: timestamp,
 		})
 	}
 
+	// Process AS path to queue peering operations
+	if len(msg.Path) > 1 {
+		for i := range len(msg.Path) - 1 {
+			fromASN := msg.Path[i]
+			toASN := msg.Path[i+1]
+
+			// Queue ASN operations
+			h.asnBatch = append(h.asnBatch, asnOp{
+				number:    fromASN,
+				timestamp: timestamp,
+			})
+			h.asnBatch = append(h.asnBatch, asnOp{
+				number:    toASN,
+				timestamp: timestamp,
+			})
+
+			// Queue peering operation
+			h.peeringBatch = append(h.peeringBatch, peeringOp{
+				fromASN:   fromASN,
+				toASN:     toASN,
+				timestamp: timestamp,
+			})
+		}
+	}
+
 	// Check if we need to flush
-	if len(h.prefixBatch) >= batchSize || len(h.asnBatch) >= batchSize || len(h.peeringBatch) >= batchSize {
+	if len(h.asnBatch) >= batchSize || len(h.peeringBatch) >= batchSize {
 		h.flushBatchesLocked()
 	}
 }
@@ -184,7 +158,7 @@ func (h *DBHandler) flushLoop() {
 
 // flushBatchesLocked flushes all batches to the database (must be called with mutex held)
 func (h *DBHandler) flushBatchesLocked() {
-	if len(h.prefixBatch) == 0 && len(h.asnBatch) == 0 && len(h.peeringBatch) == 0 {
+	if len(h.asnBatch) == 0 && len(h.peeringBatch) == 0 {
 		return
 	}
 
@@ -207,21 +181,6 @@ func (h *DBHandler) flushBatchesLocked() {
 		asnCache[asn] = asnObj
 	}
 
-	// Process prefixes (deduped)
-	prefixMap := make(map[string]time.Time)
-	for _, op := range h.prefixBatch {
-		if existing, ok := prefixMap[op.prefix]; !ok || op.timestamp.After(existing) {
-			prefixMap[op.prefix] = op.timestamp
-		}
-	}
-
-	for prefix, ts := range prefixMap {
-		_, err := h.db.GetOrCreatePrefix(prefix, ts)
-		if err != nil {
-			h.logger.Error("Failed to get/create prefix", "prefix", prefix, "error", err)
-		}
-	}
-
 	// Process peerings (deduped)
 	type peeringKey struct {
 		from, to int
@@ -250,7 +209,6 @@ func (h *DBHandler) flushBatchesLocked() {
 	}
 
 	// Clear batches
-	h.prefixBatch = h.prefixBatch[:0]
 	h.asnBatch = h.asnBatch[:0]
 	h.peeringBatch = h.peeringBatch[:0]
 	h.lastFlush = time.Now()

internal/routewatch/prefixhandler.go

@@ -168,7 +168,7 @@ func (h *PrefixHandler) flushBatchLocked() {
 
 	// Apply updates to database
 	for _, update := range prefixMap {
-		// Get or create prefix
+		// Get or create prefix (this maintains the prefixes table)
 		prefix, err := h.db.GetOrCreatePrefix(update.prefix, update.timestamp)
 		if err != nil {
 			h.logger.Error("Failed to get/create prefix",