From 1e9e32ee95bb58ff820eb00907a521a38d5d1d12 Mon Sep 17 00:00:00 2001
From: Grail Finder <wohilas@gmail.com>
Date: Mon, 8 Dec 2025 18:05:48 +0300
Subject: Fix: avoid panic on deleting from empty slice

---
 tui.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tui.go b/tui.go
index 2087239..3590c0b 100644
--- a/tui.go
+++ b/tui.go
@@ -718,6 +718,12 @@ func init() {
 		}
 		if event.Key() == tcell.KeyF2 {
 			// regen last msg
+			if len(chatBody.Messages) == 0 {
+				if err := notifyUser("info", "no messages to regenerate"); err != nil {
+					logger.Error("failed to send notification", "error", err)
+				}
+				return nil
+			}
 			chatBody.Messages = chatBody.Messages[:len(chatBody.Messages)-1]
 			// there is no case where user msg is regenerated
 			// lastRole := chatBody.Messages[len(chatBody.Messages)-1].Role
@@ -736,6 +742,12 @@ func init() {
 				colorText()
 				return nil
 			}
+			if len(chatBody.Messages) == 0 {
+				if err := notifyUser("info", "no messages to delete"); err != nil {
+					logger.Error("failed to send notification", "error", err)
+				}
+				return nil
+			}
 			chatBody.Messages = chatBody.Messages[:len(chatBody.Messages)-1]
 			textView.SetText(chatToText(cfg.ShowSys))
 			colorText()
-- 
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