From 51e654c592c7d4c5e43deb3315e6d94ea3d7d54b Mon Sep 17 00:00:00 2001
From: Nils-Johan Gynther <nils-johan.gynther@neoleaf.se>
Date: Fri, 1 May 2026 23:33:33 +0200
Subject: [PATCH] feat: implement product name normalization to Title Case with
 smart rules

---
 .../presentation/receipt_import_tab.dart      | 21 +++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/flutter/lib/features/import/presentation/receipt_import_tab.dart b/flutter/lib/features/import/presentation/receipt_import_tab.dart
index 6da7a522..691264ca 100644
--- a/flutter/lib/features/import/presentation/receipt_import_tab.dart
+++ b/flutter/lib/features/import/presentation/receipt_import_tab.dart
@@ -86,6 +86,19 @@ String _formatSwedishNumber(double value) {
   return _formatCompactNumber(value).replaceAll('.', ',');
 }
 
+/// Konverterar VERSALER-produktnamn till Title Case med smarta regler:
+/// - Token med `/` (förkortningar) lämnas i versaler: KY/KAL/LE/TO
+/// - Token som börjar med siffra (mängd/storlek) görs till gemener: 284g, 12x85g
+/// - Övriga token: första bokstav versal, resten gemen: Aprikosmarmelad
+String _normalizeProductName(String raw) {
+  return raw.trim().split(' ').map((token) {
+    if (token.isEmpty) return token;
+    if (token.contains('/')) return token;
+    if (RegExp(r'^\d').hasMatch(token)) return token.toLowerCase();
+    return token[0].toUpperCase() + token.substring(1).toLowerCase();
+  }).join(' ');
+}
+
 // ── Redigeringstillstånd per rad ─────────────────────────────────────────────
 
 typedef _ItemEdit = ItemEdit;
@@ -153,7 +166,7 @@ class _EditDialogState extends State<_EditDialog> {
       text: widget.current.unit ?? widget.item.unit ?? '',
     );
     _newProductNameCtrl = TextEditingController(
-      text: widget.current.productName ?? widget.item.rawName,
+      text: _normalizeProductName(widget.current.productName ?? widget.item.rawName),
     );
   }
 
@@ -314,7 +327,11 @@ class _EditDialogState extends State<_EditDialog> {
     final aiPath = item.categorySuggestionPath;
     final aiLabel = (aiPath != null && aiPath.isNotEmpty)
         ? aiPath
-        : ((aiCategory != null && aiCategory.isNotEmpty) ? aiCategory : null);
+        : ((aiCategory != null && aiCategory.isNotEmpty)
+            ? aiCategory
+            : (item.suggestedProductName?.isNotEmpty == true
+                ? item.suggestedProductName
+                : null));
     final currentQuantity =
         double.tryParse(_quantityCtrl.text.replaceAll(',', '.')) ?? widget.item.quantity;
     final currentUnit = _unitCtrl.text.trim().isEmpty ? widget.item.unit : _unitCtrl.text.trim();