From 15015f280e47deb042cd6091a9df8f6da11ff159 Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Tue, 5 Sep 2023 12:57:02 +0300
Subject: [PATCH] Fix panic if converted message has no parts

---
 portal.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/portal.go b/portal.go
index 4fd0ff8..3df8f26 100644
--- a/portal.go
+++ b/portal.go
@@ -1025,7 +1025,7 @@ func (portal *Portal) convertGoogleMessage(ctx context.Context, source *User, ev
 	if portal.bridge.Config.Bridge.CaptionInMessage {
 		cm.MergeCaption()
 	}
-	if raw != nil && base64.StdEncoding.EncodedLen(len(raw)) < 8192 {
+	if raw != nil && base64.StdEncoding.EncodedLen(len(raw)) < 8192 && len(cm.Parts) > 0 {
 		extra := cm.Parts[0].Extra
 		if extra == nil {
 			extra = make(map[string]any)