From dfa19ff0776be0850ad7b86ca579601431349593 Mon Sep 17 00:00:00 2001
From: bndw <ben@bdw.to>
Date: Fri, 13 Feb 2026 20:38:59 -0800
Subject: feat: implement NIP-09 with hard delete

Implement event deletion (NIP-09) using hard delete approach:
- Kind 5 events trigger deletion but are not stored themselves
- ProcessDeletion hard deletes referenced events (DELETE FROM events)
- Only authors can delete their own events (pubkey verification)
- Support multiple event IDs in single deletion request
- No deletions table needed (simpler schema)
- Added 4 deletion tests covering various scenarios
- All 45 tests passing
---
 internal/handler/grpc/server.go | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'internal/handler/grpc')

diff --git a/internal/handler/grpc/server.go b/internal/handler/grpc/server.go
index b65b527..4d6e700 100644
--- a/internal/handler/grpc/server.go
+++ b/internal/handler/grpc/server.go
@@ -13,6 +13,7 @@ import (
 type EventStore interface {
 	StoreEvent(context.Context, *storage.EventData) error
 	QueryEvents(context.Context, []*pb.Filter, *storage.QueryOptions) ([]*pb.Event, error)
+	ProcessDeletion(context.Context, *pb.Event) error
 }
 
 type Server struct {
@@ -58,6 +59,22 @@ func (s *Server) PublishEvent(ctx context.Context, req *pb.PublishEventRequest)
 
 	canonicalJSON := nostrEvent.Serialize()
 
+	// Handle deletion events (kind 5) - process but don't store
+	if req.Event.Kind == 5 {
+		if err := s.store.ProcessDeletion(ctx, req.Event); err != nil {
+			return &pb.PublishEventResponse{
+				Accepted:      false,
+				Message:       fmt.Sprintf("deletion failed: %v", err),
+				CanonicalJson: canonicalJSON,
+			}, nil
+		}
+		return &pb.PublishEventResponse{
+			Accepted:      true,
+			Message:       "deleted",
+			CanonicalJson: canonicalJSON,
+		}, nil
+	}
+
 	eventData := &storage.EventData{
 		Event:         req.Event,
 		CanonicalJSON: canonicalJSON,
-- 
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