bring in khatru and eventstore.

eventstore/wrappers/skipevent/skipevent.go

@@ -0,0 +1,24 @@
+package skipevent
+
+import (
+	"context"
+
+	"github.com/fiatjaf/eventstore"
+	"github.com/nbd-wtf/go-nostr"
+)
+
+type Wrapper struct {
+	eventstore.Store
+
+	Skip func(ctx context.Context, evt *nostr.Event) bool
+}
+
+var _ eventstore.Store = (*Wrapper)(nil)
+
+func (w Wrapper) SaveEvent(ctx context.Context, evt *nostr.Event) error {
+	if w.Skip(ctx, evt) {
+		return nil
+	}
+
+	return w.Store.SaveEvent(ctx, evt)
+}