From c682bf28dbac4bb11929518d96258ea6a54eea3a Mon Sep 17 00:00:00 2001
From: Garret Alfert <alfert@wevelop.de>
Date: Tue, 31 Aug 2021 19:58:48 +0200
Subject: [PATCH] Handle incoming presence unavailable updates

---
 app/services/sockethub-xmpp.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/app/services/sockethub-xmpp.js b/app/services/sockethub-xmpp.js
index d1bfed73..2b4cc7e8 100644
--- a/app/services/sockethub-xmpp.js
+++ b/app/services/sockethub-xmpp.js
@@ -174,6 +174,19 @@ export default class SockethubXmppService extends Service {
           channel.addUser(message.actor.displayName);
         }
       }
+    } else if (message.actor['@type'] === 'person' && message.actor['@id'].match(/\/(.+)$/)) {
+      const sockethubActorId = message.actor['@id'];
+      const targetChannelId = sockethubActorId.match(/^(.+)\//)[1];
+      const channel = this.coms.getChannel(targetChannelId);
+      const displayName = sockethubActorId.match(/\/(.+)$/)[1];
+
+      if (channel) {
+        if (message.object.presence === 'unavailable') {
+          channel.removeUser(displayName);
+        } else {
+          channel.addUser(displayName);
+        }
+      }
     } else {
       this.log('xmpp', 'presence update from contact:', message.actor['@id'], message.object.presence, message.object.status);
     }