From f251d67c32e001a01c19faac800762ba146c2339 Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Sun, 1 Mar 2020 15:38:54 +0100
Subject: [PATCH] UNTESTED: GROUP CHATS ;; add handlers for member join/leave
 and name changes

---
 external/messenger.py | 31 ++++++++++++++++++++++++-------
 1 file changed, 24 insertions(+), 7 deletions(-)

diff --git a/external/messenger.py b/external/messenger.py
index cd5d972..f857b46 100755
--- a/external/messenger.py
+++ b/external/messenger.py
@@ -389,7 +389,7 @@ class MessengerBridge:
                     "room": room,
                 }
             })
-            self.joined_map[key] = true
+            self.joined_map[key] = True
 
     def onMessage(self, thread_id, thread_type, message_object, **kwargs):
         if message_object.author == self.client.uid:
@@ -443,12 +443,29 @@ class MessengerBridge:
 
         self.cache_put("last_seen_%s"%thread_id, message_object.uid)
 
-    def onPeopleAdded(self, *args, **kwargs):
-        pass
-    def onPersonRemoved(self, *args, **kwargs):
-        pass
-    def onTitleChange(self, *args, **kwargs):
-        pass
+    def onPeopleAdded(self, added_ids, thread_id, *args, **kwargs):
+        for user_id in added_ids:
+            self.ensureJoined(self.getUserIdFromUid(user_id), thread_id)
+
+    def onPersonRemoved(self, removed_id, thread_id, *args, **kwargs):
+        userId = self.getUserIdFromUid(removed_id),
+        self.write({
+            "_type": EVENT,
+            "data": {
+                "type": EVENT_JOIN,
+                "author": userId,
+                "room": thread_id,
+            }
+        })
+        del self.joined_map["{}--{}".format(userId, thread_id)]
+
+    def onTitleChange(self, author_id, new_title, thread_id, thread_type, *args, **kwargs):
+        if thread_type == ThreadType.GROUP:
+            self.bridge.write({
+                "_type": ROOM_INFO_UPDATED,
+                "room": thread_id,
+                "data": {"name": new_title},
+            })
 
 if __name__ == "__main__":
     bridge = MessengerBridge()