From ba674af5d46ebadbee3c61dfaf89b1f1dfaa05ce Mon Sep 17 00:00:00 2001
From: Wim <wim@42.be>
Date: Sun, 25 Nov 2018 11:08:57 +0100
Subject: [PATCH] Handle deleted/edited thread starting messages (slack). Fixes
 #600 (#605)

---
 bridge/slack/handlers.go | 7 +++++++
 bridge/slack/slack.go    | 1 +
 2 files changed, 8 insertions(+)

diff --git a/bridge/slack/handlers.go b/bridge/slack/handlers.go
index a3291c38..035c5af5 100644
--- a/bridge/slack/handlers.go
+++ b/bridge/slack/handlers.go
@@ -202,6 +202,13 @@ func (b *Bslack) handleStatusEvent(ev *slack.MessageEvent, rmsg *config.Message)
 		rmsg.Event = config.EventJoinLeave
 	case sChannelTopic, sChannelPurpose:
 		rmsg.Event = config.EventTopicChange
+	case sMessageChanged:
+		rmsg.Text = ev.SubMessage.Text
+		// handle deleted thread starting messages
+		if ev.SubMessage.Text == "This message was deleted." {
+			rmsg.Event = config.EventMsgDelete
+			return true
+		}
 	case sMessageDeleted:
 		rmsg.Text = config.EventMsgDelete
 		rmsg.Event = config.EventMsgDelete
diff --git a/bridge/slack/slack.go b/bridge/slack/slack.go
index 0951fb10..4251f83b 100644
--- a/bridge/slack/slack.go
+++ b/bridge/slack/slack.go
@@ -48,6 +48,7 @@ const (
 	sChannelLeave    = "channel_leave"
 	sChannelJoined   = "channel_joined"
 	sMemberJoined    = "member_joined_channel"
+	sMessageChanged  = "message_changed"
 	sMessageDeleted  = "message_deleted"
 	sSlackAttachment = "slack_attachment"
 	sPinnedItem      = "pinned_item"