From 01f1a8b75ea389216972eb0bf8146232c03a54a0 Mon Sep 17 00:00:00 2001
From: Richard Hansen <rhansen@rhansen.org>
Date: Fri, 8 Apr 2022 04:26:32 -0400
Subject: [PATCH] chat: Move `chatHead` initialization to `padLoad` hook

---
 src/ep.json        | 1 +
 src/node/chat.js   | 4 ++++
 src/node/db/Pad.js | 1 -
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/ep.json b/src/ep.json
index 566be503c..7b657c05a 100644
--- a/src/ep.json
+++ b/src/ep.json
@@ -26,6 +26,7 @@
         "eejsBlock_stickyContainer": "ep_etherpad-lite/node/chat",
         "handleMessage": "ep_etherpad-lite/node/chat",
         "padCheck": "ep_etherpad-lite/node/chat",
+        "padLoad": "ep_etherpad-lite/node/chat",
         "socketio": "ep_etherpad-lite/node/chat"
       }
     },
diff --git a/src/node/chat.js b/src/node/chat.js
index f805f6306..935607db9 100644
--- a/src/node/chat.js
+++ b/src/node/chat.js
@@ -156,6 +156,10 @@ exports.padCheck = async (hookName, {pad}) => {
   for (const p of chats.batch(100).buffer(99)) await p;
 };
 
+exports.padLoad = async (hookName, {pad}) => {
+  if (!('chatHead' in pad)) pad.chatHead = -1;
+};
+
 exports.socketio = (hookName, {io}) => {
   socketio = io;
 };
diff --git a/src/node/db/Pad.js b/src/node/db/Pad.js
index ec7cef6c7..ee080b112 100644
--- a/src/node/db/Pad.js
+++ b/src/node/db/Pad.js
@@ -49,7 +49,6 @@ class Pad {
     this.atext = Changeset.makeAText('\n');
     this.pool = new AttributePool();
     this.head = -1;
-    this.chatHead = -1;
     this.publicStatus = false;
     this.id = id;
     this.savedRevisions = [];