Fix Share stats disappearing regression

api/internal/httpapi/server.go

@@ -43,6 +43,7 @@ func (s *Server) Handler() http.Handler {
 	mux.HandleFunc("POST /api/admin/reset-latency", s.resetLatency)
 	mux.HandleFunc("POST /api/admin/ack-best", s.ackBest)
 	mux.HandleFunc("POST /api/admin/reset-ack-best", s.resetAckBest)
+	mux.HandleFunc("POST /api/admin/rebuild-share-stats", s.rebuildShareStats)
 	mux.HandleFunc("POST /api/accelerate", s.accelerate)
 	mux.HandleFunc("POST /api/accelerate/cancel", s.accelerateCancel)
 	mux.HandleFunc("POST /api/accelerate/max", s.accelerateMax)
@@ -223,6 +224,22 @@ func (s *Server) resetLatency(w http.ResponseWriter, _ *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]any{"ok": true})
 }
 
+// rebuildShareStats recounts the all-time share statistics from the
+// ckpool log. Blocking and potentially slow (it reads the entire log),
+// so it is only ever reached by an explicit operator request.
+func (s *Server) rebuildShareStats(w http.ResponseWriter, _ *http.Request) {
+	adopted, scanned, err := s.Agg.RebuildShareStatsFromLog()
+	if err != nil {
+		writeJSON(w, http.StatusInternalServerError, map[string]any{
+			"ok": false, "error": err.Error(),
+		})
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{
+		"ok": true, "adopted": adopted, "shares_in_log": scanned,
+	})
+}
+
 func (s *Server) ackBest(w http.ResponseWriter, _ *http.Request) {
 	s.Agg.AckBestDiff()
 	writeJSON(w, http.StatusOK, map[string]any{"ok": true})