From 1e7707d6777a319a3958865d4be70c439bdfbcbe Mon Sep 17 00:00:00 2001
From: M66B <M66B@users.noreply.github.com>
Date: Sat, 8 Jan 2022 10:31:44 +0100
Subject: [PATCH] Cache thread ID

---
 app/src/main/java/eu/faircode/email/MessageHelper.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/app/src/main/java/eu/faircode/email/MessageHelper.java b/app/src/main/java/eu/faircode/email/MessageHelper.java
index 4c7dee5548..e9eeb2a671 100644
--- a/app/src/main/java/eu/faircode/email/MessageHelper.java
+++ b/app/src/main/java/eu/faircode/email/MessageHelper.java
@@ -125,6 +125,7 @@ public class MessageHelper {
     private boolean ensuredStructure = false;
     private MimeMessage imessage;
     private String hash = null;
+    private String threadId = null;
     private InternetHeaders reportHeaders = null;
 
     private static File cacheDir = null;
@@ -1285,6 +1286,12 @@ public class MessageHelper {
     }
 
     String getThreadId(Context context, long account, long folder, long uid) throws MessagingException {
+        if (threadId == null)
+            threadId = _getThreadId(context, account, folder, uid);
+        return threadId;
+    }
+
+    private String _getThreadId(Context context, long account, long folder, long uid) throws MessagingException {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
 
         if (imessage instanceof GmailMessage) {