fix: use htmlpreview.github.io for update link (v1.0.3)

build: update dist files for v1.0.2
Bump version from v1.0.1 to v1.0.2 - update test
2026-02-13 11:49:51 +01:00 · 2026-02-13 11:47:15 +01:00 · 2026-02-13 11:43:09 +01:00 · 2026-02-13 11:40:45 +01:00 · 2026-02-13 11:20:13 +01:00 · 2026-02-13 11:16:31 +01:00
10 changed files with 514 additions and 47 deletions
--- a/README.md
+++ b/README.md
@@ -8,9 +8,8 @@ Ein intelligentes Bookmarklet für die Mitarbeiter-Kantine der Bessa App. Dieses
 *   **Bestellstatus:** Farbige Indikatoren für bestellte Menüs.
 *   **Kostenkontrolle:** Summiert automatisch den Gesamtpreis der Woche.
 *   **Session Reuse:** Nutzt automatisch eine bestehende Login-Session (Loggt dich automatisch ein).
-*   **Bestellhistorie:** Zeigt zuverlässig alle aktiven und abgeschlossenen Bestellungen an (über `/user/orders/`).
-*   **Lokaler Cache:** Lädt Menüdaten blitzschnell aus dem Browser-Speicher.
-*   **Scroll-Fix:** Garantiert Scrollbarkeit auch auf restriktiven Seiten.
+*   **API Fallback:** Prüft die Verbindung und bietet bei Fehlern einen Direktlink zur Originalseite.
+*   **Menu Badges:** Zeigt Menü-Codes (M1, M2+) direkt im Header.

 ## 📦 Installation

--- a/build-bookmarklet.sh
+++ b/build-bookmarklet.sh
@@ -8,19 +8,28 @@ DIST_DIR="$SCRIPT_DIR/dist"
 CSS_FILE="$SCRIPT_DIR/style.css"
 JS_FILE="$SCRIPT_DIR/kantine.js"

+# === VERSION ===
+if [ -f "$SCRIPT_DIR/version.txt" ]; then
+    VERSION=$(cat "$SCRIPT_DIR/version.txt" | tr -d '\n')
+else
+    echo "ERROR: version.txt not found"
+    exit 1
+fi
+
 mkdir -p "$DIST_DIR"

-echo "=== Kantine Bookmarklet Builder ==="
+echo "=== Kantine Bookmarklet Builder ($VERSION) ==="

 # Check files exist
 if [ ! -f "$CSS_FILE" ]; then echo "ERROR: $CSS_FILE not found"; exit 1; fi
 if [ ! -f "$JS_FILE" ]; then echo "ERROR: $JS_FILE not found"; exit 1; fi

 CSS_CONTENT=$(cat "$CSS_FILE")
-JS_CONTENT=$(cat "$JS_FILE")
+# Inject version into JS
+JS_CONTENT=$(cat "$JS_FILE" | sed "s/{{VERSION}}/$VERSION/g")

 # === 1. Build standalone HTML (for local testing/dev) ===
-cat > "$DIST_DIR/kantine-standalone.html" << 'HTMLEOF'
+cat > "$DIST_DIR/kantine-standalone.html" << HTMLEOF
 <!DOCTYPE html>
 <html lang="de">
 <head>
@@ -37,7 +46,7 @@ HTMLEOF
 # Inject CSS
 cat "$CSS_FILE" >> "$DIST_DIR/kantine-standalone.html"

-cat >> "$DIST_DIR/kantine-standalone.html" << 'HTMLEOF'
+cat >> "$DIST_DIR/kantine-standalone.html" << HTMLEOF
    </style>
 </head>
 <body>
@@ -45,9 +54,9 @@ cat >> "$DIST_DIR/kantine-standalone.html" << 'HTMLEOF'
 HTMLEOF

 # Inject JS
-cat "$JS_FILE" >> "$DIST_DIR/kantine-standalone.html"
+echo "$JS_CONTENT" >> "$DIST_DIR/kantine-standalone.html"

-cat >> "$DIST_DIR/kantine-standalone.html" << 'HTMLEOF'
+cat >> "$DIST_DIR/kantine-standalone.html" << HTMLEOF
    </script>
 </body>
 </html>
@@ -69,7 +78,7 @@ var s=document.createElement('style');
 s.textContent='${CSS_ESCAPED}';
 document.head.appendChild(s);
 var sc=document.createElement('script');
-sc.textContent=$(cat "$JS_FILE" | python3 -c "import sys,json; print(json.dumps(sys.stdin.read()))" 2>/dev/null || cat "$JS_FILE" | sed 's/\\/\\\\/g' | sed "s/'/\\\\'/g" | sed 's/"/\\\\"/g' | tr '\n' ' ' | sed 's/^/"/' | sed 's/$/"/');
+sc.textContent=$(echo "$JS_CONTENT" | python3 -c "import sys,json; print(json.dumps(sys.stdin.read()))" 2>/dev/null || echo "$JS_CONTENT" | sed 's/\\/\\\\/g' | sed "s/'/\\\\'/g" | sed 's/"/\\\\"/g' | tr '\n' ' ' | sed 's/^/"/' | sed 's/$/"/');
 document.head.appendChild(sc);
 })();
 PAYLOADEOF
@@ -81,31 +90,45 @@ echo "javascript:${BOOKMARKLET_RAW}" > "$DIST_DIR/bookmarklet.txt"
 echo "✅ Bookmarklet URL: $DIST_DIR/bookmarklet.txt"

 # === 3. Create an easy-to-use HTML installer page ===
-cat > "$DIST_DIR/install.html" << 'INSTALLEOF'
+cat > "$DIST_DIR/install.html" << INSTALLEOF
 <!DOCTYPE html>
 <html lang="de">
 <head>
    <meta charset="UTF-8">
-    <title>Kantine Wrapper Installer</title>
+    <title>Kantine Wrapper Installer ($VERSION)</title>
    <style>
        body { font-family: 'Inter', sans-serif; max-width: 600px; margin: 40px auto; padding: 20px; background: #1a1a2e; color: #eee; }
-        h1 { color: #e94560; }
+        h1 { color: #029AA8; } /* Knapp Teal */
        .instructions { background: #16213e; padding: 20px; border-radius: 12px; margin: 20px 0; }
        .instructions ol li { margin: 10px 0; }
-        a.bookmarklet { display: inline-block; background: #e94560; color: white; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 18px; cursor: grab; }
-        a.bookmarklet:hover { background: #c73652; }
+        a.bookmarklet { display: inline-block; background: #029AA8; color: white; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 18px; cursor: grab; }
+        a.bookmarklet:hover { background: #006269; }
        code { background: #0f3460; padding: 2px 6px; border-radius: 4px; }
    </style>
 </head>
 <body>
-    <h1>🍽️ Kantine Wrapper</h1>
+    <h1>🍽️ Kantine Wrapper <span style="font-size:0.5em; opacity:0.6; font-weight:400; vertical-align:middle; margin-left:10px;">$VERSION</span></h1>
    <div class="instructions">
        <h2>Installation</h2>
        <ol>
            <li>Ziehe den Button unten in deine <strong>Lesezeichen-Leiste</strong> (Drag & Drop)</li>
-            <li>Navigiere zu <a href="https://web.bessa.app/knapp-kantine" style="color:#e94560">web.bessa.app/knapp-kantine</a></li>
-            <li>Klicke auf das Lesezeichen <code>Kantine Wrapper</code></li>
+            <li>Navigiere zu <a href="https://web.bessa.app/knapp-kantine" style="color:#029AA8">web.bessa.app/knapp-kantine</a></li>
+            <li>Klicke auf das Lesezeichen <code>Kantine $VERSION</code></li>
        </ol>
+
+        <h2>✨ Features</h2>
+        <ul>
+            <li>📅 <strong>Wochenübersicht:</strong> Die ganze Woche auf einen Blick.</li>
+            <li>💰 <strong>Kostenkontrolle:</strong> Automatische Berechnung der Wochensumme.</li>
+            <li>🔑 <strong>Auto-Login:</strong> Nutzt deine bestehende Session.</li>
+            <li>🏷️ <strong>Badges & Status:</strong> Menü-Codes (M1, M2) und Bestellstatus direkt sichtbar.</li>
+            <li>🛡️ <strong>Offline-Support:</strong> Speichert Menüdaten lokal.</li>
+        </ul>
+
+        <div style="margin-top: 30px; padding: 15px; background: rgba(233, 69, 96, 0.1); border: 1px solid rgba(233, 69, 96, 0.3); border-radius: 8px; font-size: 0.85em; color: #ddd;">
+             <strong>⚠️ Haftungsausschluss:</strong><br>
+             Die Verwendung dieses Bookmarklets erfolgt auf eigene Verantwortung. Der Entwickler übernimmt keine Haftung für Schäden, Datenverlust oder ungewollte Bestellungen, die durch die Nutzung dieser Software entstehen.
+        </div>
    </div>
    <p>👇 Diesen Button in die Lesezeichen-Leiste ziehen:</p>
    <p><a class="bookmarklet" id="bookmarklet-link" href="#">⏳ Wird generiert...</a></p>
@@ -114,7 +137,7 @@ INSTALLEOF

 # Embed the bookmarklet URL inline
 echo "document.getElementById('bookmarklet-link').href = " >> "$DIST_DIR/install.html"
-cat "$JS_FILE" | python3 -c "
+echo "$JS_CONTENT" | python3 -c "
 import sys, json
 js = sys.stdin.read()
 css = open('$CSS_FILE').read().replace('\\n', ' ').replace('  ', ' ')
@@ -122,8 +145,8 @@ bmk = '''javascript:(function(){if(window.__KANTINE_LOADED){alert(\"Already load
 print(json.dumps(bmk) + ';')
 " 2>/dev/null >> "$DIST_DIR/install.html" || echo "'javascript:alert(\"Build error\")'" >> "$DIST_DIR/install.html"

-cat >> "$DIST_DIR/install.html" << 'INSTALLEOF'
-        document.getElementById('bookmarklet-link').textContent = '🍽️ Kantine Wrapper';
+cat >> "$DIST_DIR/install.html" << INSTALLEOF
+        document.getElementById('bookmarklet-link').textContent = 'Kantine $VERSION';
    </script>
 </body>
 </html>
--- a/build-bookmarklet_old.sh
+++ b/build-bookmarklet_old.sh
@@ -0,0 +1,150 @@
+#!/bin/bash
+# Build script for Kantine Bookmarklet
+# Creates a self-contained bookmarklet URL and standalone HTML file
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+DIST_DIR="$SCRIPT_DIR/dist"
+CSS_FILE="$SCRIPT_DIR/style.css"
+JS_FILE="$SCRIPT_DIR/kantine.js"
+
+mkdir -p "$DIST_DIR"
+
+echo "=== Kantine Bookmarklet Builder ==="
+
+# Check files exist
+if [ ! -f "$CSS_FILE" ]; then echo "ERROR: $CSS_FILE not found"; exit 1; fi
+if [ ! -f "$JS_FILE" ]; then echo "ERROR: $JS_FILE not found"; exit 1; fi
+
+CSS_CONTENT=$(cat "$CSS_FILE")
+JS_CONTENT=$(cat "$JS_FILE")
+
+# === 1. Build standalone HTML (for local testing/dev) ===
+cat > "$DIST_DIR/kantine-standalone.html" << 'HTMLEOF'
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Kantine Weekly Menu (Standalone)</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">
+    <link href="https://fonts.googleapis.com/icon?family=Material+Icons+Round" rel="stylesheet">
+    <style>
+HTMLEOF
+
+# Inject CSS
+cat "$CSS_FILE" >> "$DIST_DIR/kantine-standalone.html"
+
+cat >> "$DIST_DIR/kantine-standalone.html" << 'HTMLEOF'
+    </style>
+</head>
+<body>
+    <script>
+HTMLEOF
+
+# Inject JS
+cat "$JS_FILE" >> "$DIST_DIR/kantine-standalone.html"
+
+cat >> "$DIST_DIR/kantine-standalone.html" << 'HTMLEOF'
+    </script>
+</body>
+</html>
+HTMLEOF
+
+echo "✅ Standalone HTML: $DIST_DIR/kantine-standalone.html"
+
+# === 2. Build bookmarklet (JavaScript URL) ===
+# The bookmarklet injects CSS + JS into the current page
+
+# Escape CSS for embedding in JS string
+CSS_ESCAPED=$(echo "$CSS_CONTENT" | sed "s/'/\\\\'/g" | tr '\n' ' ' | sed 's/  */ /g')
+
+# Build bookmarklet payload
+cat > "$DIST_DIR/bookmarklet-payload.js" << PAYLOADEOF
+(function(){
+if(window.__KANTINE_LOADED){alert('Kantine Wrapper already loaded!');return;}
+var s=document.createElement('style');
+s.textContent='${CSS_ESCAPED}';
+document.head.appendChild(s);
+var sc=document.createElement('script');
+sc.textContent=$(cat "$JS_FILE" | python3 -c "import sys,json; print(json.dumps(sys.stdin.read()))" 2>/dev/null || cat "$JS_FILE" | sed 's/\\/\\\\/g' | sed "s/'/\\\\'/g" | sed 's/"/\\\\"/g' | tr '\n' ' ' | sed 's/^/"/' | sed 's/$/"/');
+document.head.appendChild(sc);
+})();
+PAYLOADEOF
+
+# URL-encode for bookmark
+BOOKMARKLET_RAW=$(cat "$DIST_DIR/bookmarklet-payload.js" | tr '\n' ' ' | sed 's/  */ /g')
+echo "javascript:${BOOKMARKLET_RAW}" > "$DIST_DIR/bookmarklet.txt"
+
+echo "✅ Bookmarklet URL: $DIST_DIR/bookmarklet.txt"
+
+# === 3. Create an easy-to-use HTML installer page ===
+cat > "$DIST_DIR/install.html" << 'INSTALLEOF'
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <title>Kantine Wrapper Installer</title>
+    <style>
+        body { font-family: 'Inter', sans-serif; max-width: 600px; margin: 40px auto; padding: 20px; background: #1a1a2e; color: #eee; }
+        h1 { color: #e94560; }
+        .instructions { background: #16213e; padding: 20px; border-radius: 12px; margin: 20px 0; }
+        .instructions ol li { margin: 10px 0; }
+        a.bookmarklet { display: inline-block; background: #e94560; color: white; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 18px; cursor: grab; }
+        a.bookmarklet:hover { background: #c73652; }
+        code { background: #0f3460; padding: 2px 6px; border-radius: 4px; }
+    </style>
+</head>
+<body>
+    <h1>🍽️ Kantine Wrapper</h1>
+    <div class="instructions">
+        <h2>Installation</h2>
+        <ol>
+            <li>Ziehe den Button unten in deine <strong>Lesezeichen-Leiste</strong> (Drag & Drop)</li>
+            <li>Navigiere zu <a href="https://web.bessa.app/knapp-kantine" style="color:#e94560">web.bessa.app/knapp-kantine</a></li>
+            <li>Klicke auf das Lesezeichen <code>Kantine Wrapper</code></li>
+        </ol>
+
+        <h2>✨ Features</h2>
+        <ul>
+            <li>📅 <strong>Wochenübersicht:</strong> Die ganze Woche auf einen Blick.</li>
+            <li>💰 <strong>Kostenkontrolle:</strong> Automatische Berechnung der Wochensumme.</li>
+            <li>🔑 <strong>Auto-Login:</strong> Nutzt deine bestehende Session.</li>
+            <li>🏷️ <strong>Badges & Status:</strong> Menü-Codes (M1, M2) und Bestellstatus direkt sichtbar.</li>
+            <li>🛡️ <strong>Offline-Support:</strong> Speichert Menüdaten lokal.</li>
+        </ul>
+
+        <div style="margin-top: 30px; padding: 15px; background: rgba(233, 69, 96, 0.1); border: 1px solid rgba(233, 69, 96, 0.3); border-radius: 8px; font-size: 0.85em; color: #ddd;">
+             <strong>⚠️ Haftungsausschluss:</strong><br>
+             Die Verwendung dieses Bookmarklets erfolgt auf eigene Verantwortung. Der Entwickler übernimmt keine Haftung für Schäden, Datenverlust oder ungewollte Bestellungen, die durch die Nutzung dieser Software entstehen.
+        </div>
+    </div>
+    <p>👇 Diesen Button in die Lesezeichen-Leiste ziehen:</p>
+    <p><a class="bookmarklet" id="bookmarklet-link" href="#">⏳ Wird generiert...</a></p>
+    <script>
+INSTALLEOF
+
+# Embed the bookmarklet URL inline
+echo "document.getElementById('bookmarklet-link').href = " >> "$DIST_DIR/install.html"
+cat "$JS_FILE" | python3 -c "
+import sys, json
+js = sys.stdin.read()
+css = open('$CSS_FILE').read().replace('\\n', ' ').replace('  ', ' ')
+bmk = '''javascript:(function(){if(window.__KANTINE_LOADED){alert(\"Already loaded\");return;}var s=document.createElement(\"style\");s.textContent=''' + json.dumps(css) + ''';document.head.appendChild(s);var sc=document.createElement(\"script\");sc.textContent=''' + json.dumps(js) + ''';document.head.appendChild(sc);})();'''
+print(json.dumps(bmk) + ';')
+" 2>/dev/null >> "$DIST_DIR/install.html" || echo "'javascript:alert(\"Build error\")'" >> "$DIST_DIR/install.html"
+
+cat >> "$DIST_DIR/install.html" << 'INSTALLEOF'
+        document.getElementById('bookmarklet-link').textContent = '🍽️ Kantine Wrapper';
+    </script>
+</body>
+</html>
+INSTALLEOF
+
+echo "✅ Installer page: $DIST_DIR/install.html"
+echo ""
+echo "=== Build Complete ==="
+echo "Files in $DIST_DIR:"
+ls -la "$DIST_DIR/"
--- a/dist/bookmarklet-payload.js
+++ b/dist/bookmarklet-payload.js
--- a/dist/bookmarklet.txt
+++ b/dist/bookmarklet.txt
--- a/dist/install.html
+++ b/dist/install.html
--- a/dist/kantine-standalone.html
+++ b/dist/kantine-standalone.html
@@ -1116,6 +1116,7 @@ body {
        box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
    }
 }
+
 /* Day Header Badges */
 .day-header-left {
    display: flex;
@@ -1126,7 +1127,8 @@ body {
 .menu-code-badge {
    font-size: 0.75rem;
    font-weight: 700;
-    color: #8b5cf6; /* Violet 500 */
+    color: #8b5cf6;
+    /* Violet 500 */
    background-color: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 2px 6px;
@@ -1136,10 +1138,74 @@ body {
 }

 /* Detailed Badge Colors */
-.nav-badge.badge-violet { background-color: #8b5cf6; }
-.nav-badge.badge-green { background-color: var(--success-color); }
-.nav-badge.badge-red { background-color: var(--error-color); }
-.nav-badge.badge-blue { background-color: var(--accent-color); }
+.nav-badge.badge-violet {
+    background-color: #8b5cf6;
+}
+
+.nav-badge.badge-green {
+    background-color: var(--success-color);
+}
+
+.nav-badge.badge-red {
+    background-color: var(--error-color);
+}
+
+.nav-badge.badge-blue {
+    background-color: var(--accent-color);
+}
+
+/* Day Header Status Colors (User Request) */
+.card-header.header-violet {
+    background-color: rgba(139, 92, 246, 0.15);
+    border-bottom: 2px solid #8b5cf6;
+}
+
+.card-header.header-green {
+    background-color: rgba(16, 185, 129, 0.15);
+    border-bottom: 2px solid var(--success-color);
+}
+
+.card-header.header-red {
+    background-color: rgba(239, 68, 68, 0.15);
+    border-bottom: 2px solid var(--error-color);
+}
+
+.card-header.header-violet .day-name,
+.card-header.header-green .day-name,
+.card-header.header-red .day-name {
+    font-weight: 700;
+    color: var(--text-primary);
+    /* Ensure text remains standard color */
+}
+/* Update Icon */
+.update-icon {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    margin-left: 8px;
+    background-color: rgba(16, 185, 129, 0.2); /* Green tint */
+    color: var(--success-color);
+    border-radius: 50%;
+    width: 24px;
+    height: 24px;
+    cursor: pointer;
+    font-size: 14px;
+    transition: all 0.2s;
+    text-decoration: none;
+    animation: pulse 2s infinite;
+}
+
+.update-icon:hover {
+    background-color: var(--success-color);
+    color: white;
+    transform: scale(1.1);
+}
+
+@keyframes pulse {
+    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
+    70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
+    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
+}
    </style>
 </head>
 <body>
@@ -1211,8 +1277,8 @@ body {
                <div class="header-content">
                    <div class="brand">
                        <span class="material-icons-round logo-icon">restaurant_menu</span>
-                        <div class="brand-text">
-                            <h1>Kantinen Übersicht</h1>
+                        <div class="header-left">
+                            <h1>Kantinen Übersicht <small style="font-size: 0.6em; opacity: 0.7; font-weight: 400;">v1.0.3</small></h1>
                            <div id="last-updated-subtitle" class="subtitle"></div>
                        </div>
                    </div>
@@ -2239,6 +2305,33 @@ body {

        const badgesHtml = menuBadges.map(code => `<span class="menu-code-badge">${code}</span>`).join('');

+        // Determine Day Status for Header Color
+        // Violet: Has Order
+        // Green: No Order but Orderable
+        // Red: No Order and Not Orderable (Locked/Sold Out)
+        let headerClass = '';
+        const hasAnyOrder = day.items && day.items.some(item => {
+            const articleId = item.articleId || parseInt(item.id.split('_')[1]);
+            const key = `${day.date}_${articleId}`;
+            return orderMap.has(key) && orderMap.get(key).length > 0;
+        });
+
+        const hasOrderable = day.items && day.items.some(item => {
+            // Use pre-calculated available flag from loadMenuDataFromAPI calculation
+            return item.available;
+        });
+
+        if (hasAnyOrder) {
+            headerClass = 'header-violet';
+        } else if (hasOrderable && !isPastCutoff) {
+            headerClass = 'header-green';
+        } else {
+            // Red if not orderable (or past cutoff)
+            headerClass = 'header-red';
+        }
+
+        if (headerClass) header.classList.add(headerClass);
+
        header.innerHTML = `
            <div class="day-header-left">
                <span class="day-name">${translateDay(day.weekday)}</span>
@@ -2391,6 +2484,50 @@ body {
        return card;
    }

+    // === Version Check ===
+    async function checkForUpdates() {
+        const CurrentVersion = 'v1.0.3'; // Injected by build script
+        const VersionUrl = 'https://raw.githubusercontent.com/TauNeutrino/kantine-overview/main/version.txt';
+        // Use htmlpreview.github.io to render the HTML directly in browser
+        const InstallerUrl = 'https://htmlpreview.github.io/?https://github.com/TauNeutrino/kantine-overview/blob/main/dist/install.html';
+
+        console.log(`[Kantine] Checking for updates... (Current: ${CurrentVersion})`);
+
+        try {
+            const response = await fetch(VersionUrl, { cache: 'no-cache' });
+            if (!response.ok) return;
+
+            const remoteVersion = (await response.text()).trim();
+            console.log(`[Kantine] Remote version: ${remoteVersion}`);
+
+            if (remoteVersion && remoteVersion !== CurrentVersion) {
+                // Simple semantic version check or string inequality
+                // Assuming format v1.0.0
+                showUpdateIcon(remoteVersion, InstallerUrl);
+            }
+        } catch (error) {
+            console.warn('[Kantine] Version check failed:', error);
+        }
+    }
+
+    function showUpdateIcon(newVersion, url) {
+        const headerTitle = document.querySelector('.header-left h1');
+        if (!headerTitle) return;
+
+        // Check if already added
+        if (headerTitle.querySelector('.update-icon')) return;
+
+        const icon = document.createElement('a');
+        icon.className = 'update-icon';
+        icon.href = url;
+        icon.target = '_blank';
+        icon.innerHTML = '🆕'; // User requested icon
+        icon.title = `Neue Version verfügbar (${newVersion}). Klick für download`;
+
+        headerTitle.appendChild(icon);
+        showToast(`Update verfügbar: ${newVersion}`, 'info');
+    }
+
    // === Helpers ===
    function getISOWeek(date) {
        const d = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()));
@@ -2436,6 +2573,9 @@ body {
        startPolling();
    }

+    // Check for updates
+    checkForUpdates();
+
    console.log('Kantine Wrapper loaded ✅');
 })();

--- a/kantine.js
+++ b/kantine.js
@@ -65,8 +65,8 @@
                <div class="header-content">
                    <div class="brand">
                        <span class="material-icons-round logo-icon">restaurant_menu</span>
-                        <div class="brand-text">
-                            <h1>Kantinen Übersicht</h1>
+                        <div class="header-left">
+                            <h1>Kantinen Übersicht <small style="font-size: 0.6em; opacity: 0.7; font-weight: 400;">{{VERSION}}</small></h1>
                            <div id="last-updated-subtitle" class="subtitle"></div>
                        </div>
                    </div>
@@ -1093,6 +1093,33 @@

        const badgesHtml = menuBadges.map(code => `<span class="menu-code-badge">${code}</span>`).join('');

+        // Determine Day Status for Header Color
+        // Violet: Has Order
+        // Green: No Order but Orderable
+        // Red: No Order and Not Orderable (Locked/Sold Out)
+        let headerClass = '';
+        const hasAnyOrder = day.items && day.items.some(item => {
+            const articleId = item.articleId || parseInt(item.id.split('_')[1]);
+            const key = `${day.date}_${articleId}`;
+            return orderMap.has(key) && orderMap.get(key).length > 0;
+        });
+
+        const hasOrderable = day.items && day.items.some(item => {
+            // Use pre-calculated available flag from loadMenuDataFromAPI calculation
+            return item.available;
+        });
+
+        if (hasAnyOrder) {
+            headerClass = 'header-violet';
+        } else if (hasOrderable && !isPastCutoff) {
+            headerClass = 'header-green';
+        } else {
+            // Red if not orderable (or past cutoff)
+            headerClass = 'header-red';
+        }
+
+        if (headerClass) header.classList.add(headerClass);
+
        header.innerHTML = `
            <div class="day-header-left">
                <span class="day-name">${translateDay(day.weekday)}</span>
@@ -1245,6 +1272,50 @@
        return card;
    }

+    // === Version Check ===
+    async function checkForUpdates() {
+        const CurrentVersion = '{{VERSION}}'; // Injected by build script
+        const VersionUrl = 'https://raw.githubusercontent.com/TauNeutrino/kantine-overview/main/version.txt';
+        // Use htmlpreview.github.io to render the HTML directly in browser
+        const InstallerUrl = 'https://htmlpreview.github.io/?https://github.com/TauNeutrino/kantine-overview/blob/main/dist/install.html';
+
+        console.log(`[Kantine] Checking for updates... (Current: ${CurrentVersion})`);
+
+        try {
+            const response = await fetch(VersionUrl, { cache: 'no-cache' });
+            if (!response.ok) return;
+
+            const remoteVersion = (await response.text()).trim();
+            console.log(`[Kantine] Remote version: ${remoteVersion}`);
+
+            if (remoteVersion && remoteVersion !== CurrentVersion) {
+                // Simple semantic version check or string inequality
+                // Assuming format v1.0.0
+                showUpdateIcon(remoteVersion, InstallerUrl);
+            }
+        } catch (error) {
+            console.warn('[Kantine] Version check failed:', error);
+        }
+    }
+
+    function showUpdateIcon(newVersion, url) {
+        const headerTitle = document.querySelector('.header-left h1');
+        if (!headerTitle) return;
+
+        // Check if already added
+        if (headerTitle.querySelector('.update-icon')) return;
+
+        const icon = document.createElement('a');
+        icon.className = 'update-icon';
+        icon.href = url;
+        icon.target = '_blank';
+        icon.innerHTML = '🆕'; // User requested icon
+        icon.title = `Neue Version verfügbar (${newVersion}). Klick für download`;
+
+        headerTitle.appendChild(icon);
+        showToast(`Update verfügbar: ${newVersion}`, 'info');
+    }
+
    // === Helpers ===
    function getISOWeek(date) {
        const d = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()));
@@ -1290,6 +1361,9 @@
        startPolling();
    }

+    // Check for updates
+    checkForUpdates();
+
    console.log('Kantine Wrapper loaded ✅');
 })();

--- a/style.css
+++ b/style.css
@@ -1105,6 +1105,7 @@ body {
        box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
    }
 }
+
 /* Day Header Badges */
 .day-header-left {
    display: flex;
@@ -1115,7 +1116,8 @@ body {
 .menu-code-badge {
    font-size: 0.75rem;
    font-weight: 700;
-    color: #8b5cf6; /* Violet 500 */
+    color: #8b5cf6;
+    /* Violet 500 */
    background-color: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 2px 6px;
@@ -1125,7 +1127,71 @@ body {
 }

 /* Detailed Badge Colors */
-.nav-badge.badge-violet { background-color: #8b5cf6; }
-.nav-badge.badge-green { background-color: var(--success-color); }
-.nav-badge.badge-red { background-color: var(--error-color); }
-.nav-badge.badge-blue { background-color: var(--accent-color); }
+.nav-badge.badge-violet {
+    background-color: #8b5cf6;
+}
+
+.nav-badge.badge-green {
+    background-color: var(--success-color);
+}
+
+.nav-badge.badge-red {
+    background-color: var(--error-color);
+}
+
+.nav-badge.badge-blue {
+    background-color: var(--accent-color);
+}
+
+/* Day Header Status Colors (User Request) */
+.card-header.header-violet {
+    background-color: rgba(139, 92, 246, 0.15);
+    border-bottom: 2px solid #8b5cf6;
+}
+
+.card-header.header-green {
+    background-color: rgba(16, 185, 129, 0.15);
+    border-bottom: 2px solid var(--success-color);
+}
+
+.card-header.header-red {
+    background-color: rgba(239, 68, 68, 0.15);
+    border-bottom: 2px solid var(--error-color);
+}
+
+.card-header.header-violet .day-name,
+.card-header.header-green .day-name,
+.card-header.header-red .day-name {
+    font-weight: 700;
+    color: var(--text-primary);
+    /* Ensure text remains standard color */
+}
+/* Update Icon */
+.update-icon {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    margin-left: 8px;
+    background-color: rgba(16, 185, 129, 0.2); /* Green tint */
+    color: var(--success-color);
+    border-radius: 50%;
+    width: 24px;
+    height: 24px;
+    cursor: pointer;
+    font-size: 14px;
+    transition: all 0.2s;
+    text-decoration: none;
+    animation: pulse 2s infinite;
+}
+
+.update-icon:hover {
+    background-color: var(--success-color);
+    color: white;
+    transform: scale(1.1);
+}
+
+@keyframes pulse {
+    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
+    70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
+    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
+}
--- a/version.txt
+++ b/version.txt
@@ -0,0 +1 @@
+v1.0.3
Author	SHA1	Message	Date
Michael Kaufmann	71cb2e8475	fix: use htmlpreview.github.io for update link (v1.0.3)	2026-02-13 11:49:51 +01:00
Michael Kaufmann	18c4961402	build: update dist files for v1.0.2	2026-02-13 11:47:15 +01:00
Michael	25816b7fb5	Bump version from v1.0.1 to v1.0.2 - update test	2026-02-13 11:43:09 +01:00
Michael Kaufmann	d002e6a900	feat: add auto-update check (v1.0.1)	2026-02-13 11:40:45 +01:00
Michael Kaufmann	c58b54faf6	chore: bump version to v1.0.0 for initial release	2026-02-13 11:20:13 +01:00
Michael Kaufmann	bff7ce3874	fix: resolve version number conflict with Bessa global variable (v1.8.6)	2026-02-13 11:16:31 +01:00
Michael Kaufmann	6864838999	feat: show version number in app header (v1.8.6)	2026-02-13 11:13:34 +01:00
Michael Kaufmann	6f2a34ae0e	feat: inject version number into installer and bookmarklet (v1.8.5)	2026-02-13 11:11:46 +01:00
Michael Kaufmann	7008b40987	fix: correct day header status logic and text color (v1.8.4)	2026-02-13 11:06:22 +01:00
Michael Kaufmann	3500790b5d	feat: color-code day headers based on status (v1.8.3)	2026-02-13 10:54:29 +01:00
Michael Kaufmann	3d185140cc	docs: revert to dark theme with teal accents (v1.8.2)	2026-02-13 09:36:35 +01:00
Michael Kaufmann	35e59a15a0	docs: theme installer with Knapp colors (v1.8.1)	2026-02-13 09:33:28 +01:00
Michael Kaufmann	57d9e2e2b2	docs: update readme and installer content (v1.8.0)	2026-02-13 09:23:16 +01:00