From 9e5b64b9a4e7306ff9e1c9e665cb70d310c90603 Mon Sep 17 00:00:00 2001
From: Christian Heller <c.heller@plomlompom.de>
Date: Thu, 12 Feb 2026 19:49:04 +0100
Subject: [PATCH] Rename "mirror" button to "balance all" and apply it
 line-by-line.

---
 src/templates/edit_structured.html |  2 +-
 src/templates/edit_structured.js   | 10 +++++++---
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/templates/edit_structured.html b/src/templates/edit_structured.html
index f62b85b..92f14cf 100644
--- a/src/templates/edit_structured.html
+++ b/src/templates/edit_structured.html
@@ -27,7 +27,7 @@ input.amount {
 {% block content %}
 {{ macros.edit_bar(block, 'structured', 'raw') }}
 <span class="disable_on_taint">
-<input id="btn_mirror" type="button" value="mirror">
+<input id="btn_mirror" type="button" value="balance all">
 <input id="btn_sink" type="button" value="fill sink">
 |
 <input id="btn_replace" type="button" value="replace string">
diff --git a/src/templates/edit_structured.js b/src/templates/edit_structured.js
index 44cbb3d..94459d2 100644
--- a/src/templates/edit_structured.js
+++ b/src/templates/edit_structured.js
@@ -406,9 +406,13 @@ const replace = () => {
 };
 
 const mirror = () => {
-    bookingLines.slice(IDX_PAST_INTRO_LINE).forEach(
-        (line) => bookingLines.push(balance(line))
-    );
+    for (let idx = bookingLines.length; idx > IDX_PAST_INTRO_LINE; idx--) {
+        bookingLines.splice(
+            idx,
+            LEN_EMPTY,
+            balance(bookingLines[idx - LEN_LINE_STEP])
+        );
+    }
     taintAndUpdateForm();
 };
 
-- 
2.30.2