From 9cc3e325bbbb31b9effbe19cc20fc499ba43bb70 Mon Sep 17 00:00:00 2001
From: Scarriffle <admin@scarriffle.com>
Date: Thu, 30 Jul 2026 18:26:20 +0200
Subject: [PATCH] Web: Kassenzettel-Trefferschwelle in den Einstellungen

Prozent-Feld fuer receipt_match_threshold (Default 45) analog zur Ablaufwarnung;
speichert ueber den generischen Settings-Endpunkt.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 web/src/pages/Settings.jsx | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/web/src/pages/Settings.jsx b/web/src/pages/Settings.jsx
index 28c6ec5..4c3e5a3 100644
--- a/web/src/pages/Settings.jsx
+++ b/web/src/pages/Settings.jsx
@@ -10,11 +10,13 @@ import { DATE_FORMATS, formatDate } from "../units";
 import { applyFavicon } from "../branding";
 
 const EXPIRY_KEY = "expiry_warning_days";
+const RECEIPT_KEY = "receipt_match_threshold";
 
 export default function Settings() {
   const { reload } = useSettings();
   const toast = useToast();
   const [days, setDays] = useState("");
+  const [threshold, setThreshold] = useState("");
   const [dateFormat, setDateFormat] = useState("de");
   const [error, setError] = useState(null);
   const [busy, setBusy] = useState(false);
@@ -23,6 +25,7 @@ export default function Settings() {
     try {
       const settings = await api.listSettings();
       setDays(settings.find((s) => s.key === EXPIRY_KEY)?.value ?? "7");
+      setThreshold(settings.find((s) => s.key === RECEIPT_KEY)?.value ?? "45");
       setDateFormat(settings.find((s) => s.key === DATE_FORMAT_KEY)?.value ?? "de");
     } catch (err) {
       setError(err.message);
@@ -36,6 +39,7 @@ export default function Settings() {
     setError(null); setBusy(true);
     try {
       await api.setSetting(EXPIRY_KEY, String(parseInt(days, 10)));
+      await api.setSetting(RECEIPT_KEY, String(Math.max(0, Math.min(100, parseInt(threshold, 10) || 0))));
       await api.setSetting(DATE_FORMAT_KEY, dateFormat);
       await reload();
       toast("Gespeichert.");
@@ -71,6 +75,20 @@ export default function Settings() {
           bereits überschritten ist), erscheinen auf der Übersicht unter „Bald ablaufend“.
         </p>
 
+        <div className="card-head" style={{ marginTop: "var(--sp-5)" }}>
+          <Icon name="cart" /><h2>Kassenzettel-Scan</h2>
+        </div>
+        <label>
+          Trefferschwelle (%)
+          <input type="number" min="0" max="100" step="1" value={threshold}
+            onChange={(e) => setThreshold(e.target.value)} style={{ maxWidth: 160 }} />
+        </label>
+        <p className="muted small mt-0">
+          Beim Scannen eines Kassenzettels (iOS) werden je Zeile nur Artikel vorgeschlagen,
+          deren Übereinstimmung mindestens so hoch ist. Höher = strenger (weniger, dafür
+          sicherere Vorschläge), niedriger = mehr Vorschläge.
+        </p>
+
         <div className="card-head" style={{ marginTop: "var(--sp-5)" }}>
           <Icon name="settings" /><h2>Darstellung</h2>
         </div>