v1.2.0: skip unchanged writes, transactional schema/root counters, snapshot replay for meta:events 0-0 (drops boot republish), collect-once search driver

internal/api/schema_handlers.go

@@ -5,38 +5,44 @@ import (
 	"net/http"
 )
 
-// handleSchemaGet returns the per-field schema (recomputed from the store every
-// few minutes; see schema.Indexer).
+// handleSchemaGet returns the per-field schema, folded from counters the write
+// path keeps exact (see schema.Indexer).
 func (s *Server) handleSchemaGet(w http.ResponseWriter, r *http.Request) {
 	if s.schemaIndexer == nil {
 		http.Error(w, "schema indexer not running", http.StatusServiceUnavailable)
 		return
 	}
-	snap := s.schemaIndexer.Snapshot()
+	snap, err := s.schemaIndexer.Snapshot(r.Context())
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
 	w.Header().Set("Content-Type", "application/json")
 	_ = json.NewEncoder(w).Encode(snap)
 }
 
-// handleSchemaRescan recomputes the schema from a full scan of the store and
-// returns it. It no longer republishes every property into meta:events — the
-// indexer reads the store itself — so a rescan floods no consumer.
+// handleSchemaRescan rebuilds the schema counters from a full read of the
+// records and returns the result. The counters are exact by construction, so
+// this is a repair tool, not routine: it runs as one write transaction, and
+// every other write waits for it (minutes on a large store).
 func (s *Server) handleSchemaRescan(w http.ResponseWriter, r *http.Request) {
 	if s.schemaIndexer == nil {
 		http.Error(w, "schema indexer not running", http.StatusServiceUnavailable)
 		return
 	}
-
-	snap, err := s.schemaIndexer.Rebuild(r.Context())
+	if err := s.storage.RebuildCounters(); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	snap, err := s.schemaIndexer.Snapshot(r.Context())
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
-	out := *snap
-	out.Source = "rescan"
-
+	snap.Source = "rescan"
 	w.Header().Set("Content-Type", "application/json")
 	_ = json.NewEncoder(w).Encode(map[string]any{
 		"published_events": 0,
-		"schema":           &out,
+		"schema":           snap,
 	})
 }