From 3c042e20a1e132bb7c282472d50f911f4154b2a8 Mon Sep 17 00:00:00 2001
From: dailz <dailz@example.com>
Date: Sat, 11 Apr 2026 08:52:22 +0800
Subject: [PATCH] fix(tui): show [0/0] instead of [1/0] for empty files

---
 crates/tui/src/ui.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/crates/tui/src/ui.rs b/crates/tui/src/ui.rs
index a6fecf0..c1c52df 100644
--- a/crates/tui/src/ui.rs
+++ b/crates/tui/src/ui.rs
@@ -15,7 +15,12 @@ pub fn render(frame: &mut ratatui::Frame, app: &mut App) {
     // ── Title bar ──────────────────────────────────────────────────
     let title_text = if app.is_loaded() {
         let name = app.file_name().unwrap_or("unknown");
-        format!(" {} [{}/{}]", name, app.cursor_line + 1, app.total_lines())
+        let cursor_display = if app.total_lines() == 0 {
+            0
+        } else {
+            app.cursor_line + 1
+        };
+        format!(" {} [{}/{}]", name, cursor_display, app.total_lines())
     } else {
         " Log Viewer".to_string()
     };