2 files changed, 44 insertions(+), 2 deletions(-)

M cmd/tallyard/main.go
M election/voter.go

@@ 143,7 143,7 @@ func main() {
 
 	el.PrintResults()
 
-	el.Finish()
+	el.Finish(client)
 }
 
 var electionFilter = &mautrix.Filter{

@@ 470,10 470,52 @@ func (el *Election) SendSum(client *mautrix.Client, eventStore *EventStore) erro
 	return nil
 }
 
-func (el *Election) Finish() {
+func (el *Election) Finish(client *mautrix.Client) {
 	el.Lock()
 	defer el.Save()
 	defer el.Unlock()
+
+	if el.LocalVoter == nil {
+		return
+	}
+
+	reqRedact := mautrix.ReqRedact{
+		Reason: "election has concluded",
+	}
+
+	// redact the create/start events if we sent them
+	if el.CreateEvt.Sender == el.LocalVoter.JoinEvt.Sender {
+		_, err := client.RedactEvent(el.RoomID, el.CreateEvt.ID, reqRedact)
+		if err != nil {
+			panic(err)
+		}
+		// if we sent the create event, we necessarily sent the start event
+		_, err = client.RedactEvent(el.RoomID, *el.StartID, reqRedact)
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	// redact our join event
+	_, err := client.RedactEvent(el.RoomID, el.LocalVoter.JoinEvt.ID, reqRedact)
+	if err != nil {
+		panic(err)
+	}
+
+	// redact our keys event
+	_, err = client.RedactEvent(el.RoomID, *el.LocalVoter.KeysID, reqRedact)
+	if err != nil {
+		panic(err)
+	}
+
+	// redact our evals event
+	_, err = client.RedactEvent(el.RoomID, *el.LocalVoter.EvalsID, reqRedact)
+	if err != nil {
+		panic(err)
+	}
+
+	// we don't redact the sum event since others may still be using it
+
 	// the election is over; throw away the keys!
 	el.LocalVoter = nil
 }