feat: enhance balance calculation to include total balance from all months and exclude sick days

.gitea/workflows/docker-build.yml

@@ -13,9 +13,9 @@ on:
       - 'docker-compose.yml'
       - 'db/**'
       - 'public/**'
+      - '.gitea/workflows/**'
       - '!public/**/*.md'
       - '!**/*.md'
-      - '!.gitea/workflows/**'
       - '!.gitignore'
   pull_request:
     branches:
@@ -29,9 +29,9 @@ on:
       - 'docker-compose.yml'
       - 'db/**'
       - 'public/**'
+      - '.gitea/workflows/**'
       - '!public/**/*.md'
       - '!**/*.md'
-      - '!.gitea/workflows/**'
       - '!.gitignore'
 
 env:
@@ -43,18 +43,11 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-#      - name: Cache Gitea Actions
-#        uses: actions/cache@v3
-#        with:
-#          path: |
-#            ~/.cache/actcache
-#            ~/.cache/act
-#          key: ${{ runner.os }}-act-${{ hashFiles('**/.gitea/workflows/*.yml') }}
-#          restore-keys: |
-#            ${{ runner.os }}-act-
-      
       - name: Checkout code
         uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
       
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
@@ -76,18 +69,19 @@ jobs:
             type=raw,value=latest,enable={{is_default_branch}}
       
       - name: Build and push Docker image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: ./Dockerfile
           push: true
+          platforms: linux/amd64,linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           build-args: |
             COMMIT_HASH=${{ github.sha }}
             BUILD_DATE=${{ github.event.head_commit.timestamp }}
-          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache
-          cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache,mode=max
+          cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          cache-to: type=inline
       
       - name: Image digest
         run: echo "Image pushed with digest ${{ steps.meta.outputs.digest }}"

README.md

@@ -25,6 +25,14 @@ Eine Full-Stack-Zeiterfassungsanwendung, entwickelt mit Node.js, Express, SQLite
   - Timer persistiert über Seiten-Reloads
   - Manuelle Startzeit-Eingabe möglich
   - Visueller Indikator (blinkendes Uhr-Icon) bei laufendem Timer
+  - **Timer-Metriken** bei laufendem Timer:
+    - Läuft seit: Startzeit mit Icon-Styling
+    - Soll erreicht: Uhrzeit wann Tagesziel erreicht wird (inkl. Pausen)
+    - Zeit bis Soll: Live-Countdown zur Zielzeit
+    - Saldo bei Soll: Prognostizierter Gesamtsaldo nach Erreichen der geplanten Zeit
+  - **Anpassbare Arbeitszeit**: Dropdown 4h-10h für flexible Arbeitstage
+    - Einstellung bleibt über Reloads erhalten (nur während Timer läuft)
+    - Wird bei Timer-Stop auf 8h zurückgesetzt
 - **Flexible Eingabemodi**: 
   - Manuelle Eingabe (Datum, Start, Ende, Pause)
   - Inline-Bearbeitung direkt in der Tabelle
@@ -38,10 +46,16 @@ Eine Full-Stack-Zeiterfassungsanwendung, entwickelt mit Node.js, Express, SQLite
 - **Automatische Pausenberechnung** (deutsches Arbeitszeitgesetz)
 - **10-Stunden-Cap** für maximale Nettoarbeitszeit pro Tag
 - **Live-Statistiken** mit laufendem Timer:
-  - Soll-Stunden (basierend auf Arbeitstagen)
+  - Soll-Stunden (basierend auf Arbeitstagen mit Einträgen)
   - Ist-Stunden (inkl. aktuell laufender Timer)
   - Monatssaldo + Gesamtsaldo mit Vormonatsübertrag
   - Arbeitstage-Zählung
+  - **Intelligente Soll-Berechnung**: Berücksichtigt nur Tage mit Einträgen oder laufendem Timer
+- **Laufendes Saldo** in Monatsansicht:
+  - Spalte "Saldo" zeigt kumulatives Saldo bis zu jedem Tag
+  - Live-Updates während Timer läuft
+  - Farbcodierung: Grün (positiv) / Rot (negativ)
+  - Berücksichtigt Flextime-Tage korrekt (-8h)
 - **Urlaubsverwaltung**:
   - Konfigurierbares Jahres-Kontingent
   - Tracking: Genommen, Geplant, Verfügbar
@@ -50,6 +64,10 @@ Eine Full-Stack-Zeiterfassungsanwendung, entwickelt mit Node.js, Express, SQLite
 ### 🗓️ Bundesland-spezifische Feiertage
 - **16 Bundesländer** mit korrekten regionalen Feiertagen
 - **Persistente Einstellung** (gespeichert in Datenbank)
+- **Betriebsfreie Tage**: Wählbar zwischen Heiligabend (24.12.) oder Silvester (31.12.)
+  - Toggle in Einstellungen
+  - Wird als "Betriebsfrei" markiert
+  - Verhindert doppelte Einträge an diesen Tagen
 - **Kollisionserkennung**: Warnung bei Feiertagen mit bestehenden Einträgen
 - **Alle Feiertage**: Bundeseinheitlich + regional (z.B. Fronleichnam, Reformationstag)
 
@@ -62,6 +80,7 @@ Eine Full-Stack-Zeiterfassungsanwendung, entwickelt mit Node.js, Express, SQLite
   - 🔴 Rot: Fehlende Arbeitstage
   - ⚫ Grau: Wochenenden
   - 🔵 Blau: Feiertage (mit Namen)
+  - 💙 Blauer Rand: Heutiger Tag
 - **Navigation**: Vor/Zurück-Buttons zum Monatswechsel
 - **Auto-Fill**: Automatisches Befüllen des Monats mit Standard-Arbeitszeiten (9:00-17:30)
 - **Quick-Actions**: Plus-Buttons für schnelles Hinzufügen von Einträgen
@@ -83,7 +102,9 @@ Eine Full-Stack-Zeiterfassungsanwendung, entwickelt mit Node.js, Express, SQLite
 - **CSV-Export (Abweichungen)**: Nur Tage ≠ 8,0h
   - Ideal für Gleitzeit-Nachweise
 - **PDF-Export**: 
-  - **Monats-Export**: Exportiert aktuellen Monat als formatierten PDF
+  - **Monats-Export**: Nur verfügbar wenn letzter Tag des Monats vollständig erfasst ist
+    - Verhindert versehentliche Exports unvollständiger Monate
+    - Button wird automatisch angezeigt sobald Bedingung erfüllt
   - **Bulk-Export**: Exportiert ausgewählte Einträge (im Bulk-Modus)
   - Professionelles Layout mit Mitarbeiter-Info und Statistiken
   - Automatische Tabelle mit allen Einträgen
@@ -105,6 +126,8 @@ Eine Full-Stack-Zeiterfassungsanwendung, entwickelt mit Node.js, Express, SQLite
 ### 🎨 Modernes UI/UX
 - **Premium Design**: Glass-Morphism, Gradients, Schatten, Animationen
 - **Responsive**: Desktop, Tablet, Mobile
+  - Timer-Metriken: Rechts neben Timer auf großen Displays, darunter auf mobil
+  - Adaptive Layouts für alle Bildschirmgrößen
 - **Dark Mode**: Augenschonendes dunkles Design
 - **Toast-Benachrichtigungen**: Visuelles Feedback
 - **Icons**: Lucide Icons für klare Symbolik
@@ -113,7 +136,7 @@ Eine Full-Stack-Zeiterfassungsanwendung, entwickelt mit Node.js, Express, SQLite
 ## 🏗️ Technologie-Stack
 
 **Backend:**
-- Node.js 18+ mit Express.js
+- Node.js 20+ mit Express.js
 - SQLite (better-sqlite3) für dateibasierte Persistenz
 - Modulare Architektur (config, utils, routes)
 
@@ -127,6 +150,8 @@ Eine Full-Stack-Zeiterfassungsanwendung, entwickelt mit Node.js, Express, SQLite
 **Infrastructure:**
 - Docker & Docker Compose
 - Multi-Stage Build für optimierte Images
+- Node.js 20 Alpine Linux base image
+- Python build dependencies für native Module
 - Gitea Actions CI/CD für automatische Builds
 - Gitea Container Registry für Image-Hosting
 
@@ -142,15 +167,16 @@ timetracker/
 │   ├── index.html              # Single-Page Application
 │   ├── favicon.svg             # App Icon
 │   └── js/
-│       ├── state.js            # Globaler State
+│       ├── state.js            # Globaler State (companyHolidayPreference, targetHours)
 │       ├── utils.js            # Hilfsfunktionen
-│       ├── holidays.js         # Feiertagsberechnung
+│       ├── holidays.js         # Feiertagsberechnung (16 Bundesländer)
+│       ├── bridge-days.js      # Brückentag-Optimierung
 │       ├── api.js              # Backend-Kommunikation
-│       └── main.js             # Hauptlogik (~3700 Zeilen)
+│       └── main.js             # Hauptlogik (~4000 Zeilen)
 ├── .gitea/workflows/           # CI/CD Workflows
 │   └── docker-build.yml        # Docker Build & Push
 ├── media/screenshots/          # App-Screenshots
-├── Dockerfile                  # Container-Image
+├── Dockerfile                  # Container-Image (Node 20 + Python)
 ├── docker-compose.yml          # Orchestrierung
 └── package.json
 ```
@@ -227,7 +253,7 @@ docker run -p 3000:3000 -v $(pwd)/db:/app/db zeiterfassung
 
 ### 💻 Option 3: Lokal (ohne Docker)
 
-**Voraussetzungen:** Node.js 18+
+**Voraussetzungen:** Node.js 20+
 
 ```bash
 # Repository klonen
@@ -247,6 +273,9 @@ Die App bietet mehrere Export-Modi für verschiedene Anwendungsfälle:
 ### PDF-Export 📄
 
 **Monats-Export:**
+- Button erscheint nur wenn letzter Tag des Monats vollständig erfasst ist
+  - Startzeit und Endzeit müssen vorhanden sein
+  - Verhindert versehentliche Exports unvollständiger Monate
 - Klicke auf "PDF Export" in der Monatsansicht
 - Exportiert alle Einträge des aktuellen Monats
 - Professionelles Layout mit:
@@ -362,13 +391,14 @@ Die App verwendet Gitea Actions für automatische Builds und Deployments:
 **Architektur:** Single-Page Application (SPA) mit REST-API Backend
 
 **Tech-Details:**
-- Modulare Frontend-Architektur (5 separate JS-Dateien)
+- Modulare Frontend-Architektur (6 separate JS-Dateien)
 - Flatpickr für Touch-optimierte Picker (auch in Tabellen-Inline-Edit)
 - Lucide Icons für Symbolik
 - jsPDF + autoTable für PDF-Generierung
 - SQLite für dateibasierte Persistenz
 - Server-seitige Berechnungen für Datenintegrität
 - Responsive Design (Tailwind CSS via CDN)
+- Live-Updates während Timer läuft (Saldo, Nettostunden)
 
 **Datenpersistenz:**
 - SQLite-Datenbank: `db/timetracker.db`
@@ -377,11 +407,20 @@ Die App verwendet Gitea Actions für automatische Builds und Deployments:
 - JSON-basierte Backups für Migration
 
 **Code-Organisation:**
-- `state.js`: Globaler Application State
+- `state.js`: Globaler Application State (companyHolidayPreference, targetHours)
 - `utils.js`: Hilfsfunktionen (Datum, Zeit, Format)
-- `holidays.js`: Feiertagsberechnung (16 Bundesländer)
+- `holidays.js`: Feiertagsberechnung (16 Bundesländer + Betriebsfrei)
+- `bridge-days.js`: Brückentag-Optimierung
 - `api.js`: Backend-Kommunikation
-- `main.js`: Hauptlogik, UI, Event-Handler
+- `main.js`: Hauptlogik, UI, Event-Handler (~4000 Zeilen)
+
+**Neue Features:**
+- Timer-Metriken mit Live-Berechnung
+- Anpassbare tägliche Arbeitszeit (4h-10h)
+- Laufendes Saldo in Tabelle
+- Intelligente PDF-Export-Aktivierung
+- Betriebsfreier Tag (Weihnachten/Silvester)
+- Responsive Timer-Layout
 
 ## 📄 Lizenz
 

public/index.html

@@ -491,6 +491,9 @@
           <div class="stat-card glass-card rounded-xl p-5 border border-gray-600">
             <div class="text-xs text-gray-400 mb-2 uppercase tracking-wide">Arbeitstage</div>
             <div id="statWorkdays" class="text-3xl font-bold text-transparent bg-clip-text bg-gradient-to-r from-amber-400 to-orange-400">0</div>
+            <div id="statSickdays" class="text-xs text-red-400 mt-2 hidden">
+              <i data-lucide="activity" class="w-3 h-3 inline"></i> <span id="statSickdaysCount">0</span> Krankheitstage
+            </div>
           </div>
         </div>
       </div>

public/js/main.js

@@ -401,15 +401,19 @@ function updateTimerMetrics(netElapsedSeconds) {
   // Target hours from user selection (default 8)
   const targetSeconds = targetHours * 60 * 60;
   
-  // Calculate total pause time: 30 min after 6h + 15 min after 9h
-  const pauseDuration30Min = 30 * 60; // 30 minutes in seconds
-  const pauseDuration15Min = 15 * 60; // 15 minutes in seconds
+  // Calculate required pause time based on target hours (German law)
+  let totalPauseSeconds = 0;
+  if (targetHours > 9) {
+    // More than 9h -> 45 min pause (30 + 15)
+    totalPauseSeconds = 45 * 60;
+  } else if (targetHours > 6) {
+    // More than 6h -> 30 min pause
+    totalPauseSeconds = 30 * 60;
+  }
+  // 6h or less -> no mandatory pause
   
-  // Time needed including pauses
-  // After 6h work -> 30 min pause
-  // After 9h work -> 15 min pause
-  // Total gross time = target work hours + 30min pause + 15min pause
-  const totalGrossTimeNeeded = targetSeconds + pauseDuration30Min + pauseDuration15Min;
+  // Total gross time = target work hours + pause time
+  const totalGrossTimeNeeded = targetSeconds + totalPauseSeconds;
   
   // Calculate when target will be reached (clock time)
   const targetReachedTimestamp = new Date(timerStartTime + totalGrossTimeNeeded * 1000);
@@ -647,11 +651,11 @@ function renderEntries(entries) {
       </td>
     ` : '<td class="hidden"></td>';
     
-    // Calculate balance: for work and flextime entries (excluding vacation)
+    // Calculate balance: for work and flextime entries (excluding vacation and sickday)
     const entryType = entry.entryType || 'work';
     let balanceCell = '';
     
-    if (entryType !== 'vacation') {
+    if (entryType !== 'vacation' && entryType !== 'sickday') {
       // For all workdays (including flextime): Actual - Target (8h)
       // Flextime has netHours = 0, so deviation will be -8h
       const deviation = entry.netHours - 8.0;
@@ -804,6 +808,12 @@ function renderMonthlyView(entries) {
         displayTimes = `<td class="px-4 py-3 whitespace-nowrap text-sm text-center text-gray-400" colspan="3">
           <span class="italic">Urlaub</span>
         </td>`;
+      } else if (entryType === 'sickday') {
+        displayIcon = '<i data-lucide="activity" class="w-4 h-4 inline"></i>';
+        displayText = 'Krank';
+        displayTimes = `<td class="px-4 py-3 whitespace-nowrap text-sm text-center text-gray-400" colspan="3">
+          <span class="italic">Krankheit</span>
+        </td>`;
       } else if (entryType === 'flextime') {
         displayIcon = '<i data-lucide="clock" class="w-4 h-4 inline"></i>';
         displayText = 'Gleitzeit';
@@ -845,11 +855,11 @@ function renderMonthlyView(entries) {
         </td>
       ` : '<td class="hidden"></td>';
       
-      // Calculate balance: only for past days (excluding vacation)
+      // Calculate balance: only for past days (excluding vacation and sickday)
       const isPastDay = dateObj < today || (dateObj.getFullYear() === todayYear && dateObj.getMonth() === todayMonth && day <= todayDay);
       let balanceCell = '';
       
-      if (isPastDay && entryType !== 'vacation') {
+      if (isPastDay && entryType !== 'vacation' && entryType !== 'sickday') {
         // For all workdays (including flextime): Actual - Target (8h default)
         // Flextime has netHours = 0, so deviation will be -8h
         
@@ -938,6 +948,9 @@ function renderMonthlyView(entries) {
             <button class="btn-add-vacation inline-flex items-center justify-center w-7 h-7 text-amber-400/80 hover:text-amber-400 hover:bg-amber-500/10 rounded transition-all" data-date="${dateISO}" title="Urlaub eintragen">
               <i data-lucide="plane" class="w-4 h-4"></i>
             </button>
+            <button class="btn-add-sickday inline-flex items-center justify-center w-7 h-7 text-red-400/80 hover:text-red-400 hover:bg-red-500/10 rounded transition-all" data-date="${dateISO}" title="Krankheit eintragen">
+              <i data-lucide="activity" class="w-4 h-4"></i>
+            </button>
             <button class="btn-add-flextime inline-flex items-center justify-center w-7 h-7 text-cyan-400/80 hover:text-cyan-400 hover:bg-cyan-500/10 rounded transition-all" data-date="${dateISO}" title="Gleitzeit eintragen">
               <i data-lucide="clock" class="w-4 h-4"></i>
             </button>
@@ -989,6 +1002,14 @@ function renderMonthlyView(entries) {
     });
   });
   
+  // Add sick day entry for a specific date
+  document.querySelectorAll('.btn-add-sickday').forEach(btn => {
+    btn.addEventListener('click', async () => {
+      const dateISO = btn.dataset.date;
+      await addSpecialEntry(dateISO, 'sickday');
+    });
+  });
+  
   // Add flextime entry for a specific date
   document.querySelectorAll('.btn-add-flextime').forEach(btn => {
     btn.addEventListener('click', async () => {
@@ -1016,7 +1037,7 @@ function renderMonthlyView(entries) {
  * Add a special entry (vacation or flextime) for a specific date
  */
 async function addSpecialEntry(dateISO, entryType) {
-  const typeName = entryType === 'vacation' ? 'Urlaub' : 'Gleittag';
+  const typeName = entryType === 'vacation' ? 'Urlaub' : entryType === 'sickday' ? 'Krankheit' : 'Gleittag';
   
   // Check if date is a public holiday
   const dateObj = new Date(dateISO + 'T00:00:00');
@@ -1046,7 +1067,9 @@ async function addSpecialEntry(dateISO, entryType) {
       throw new Error(error.error || 'Fehler beim Erstellen');
     }
     
-    const message = entryType === 'vacation' ? '✅ Urlaub eingetragen (kein Arbeitstag)' : '✅ Gleittag eingetragen (8h Soll, 0h Ist)';
+    const message = entryType === 'vacation' ? '✅ Urlaub eingetragen (kein Arbeitstag)' : 
+                    entryType === 'sickday' ? '✅ Krankheit eingetragen (kein Arbeitstag)' : 
+                    '✅ Gleittag eingetragen (8h Soll, 0h Ist)';
     showNotification(message, 'success');
     loadMonthlyView();
   } catch (error) {
@@ -1082,20 +1105,19 @@ async function loadMonthlyView() {
   updateStatistics(entries);
   updateBridgeDaysDisplay();
   
-  // Show/hide PDF export button based on whether last day has complete times
+  // Show/hide PDF export button based on whether the month is complete (in the past)
   const pdfButton = document.getElementById('btnExportPDF');
   const pdfButtonMobile = document.getElementById('btnExportPDFMobile');
   
-  // Check if last day of month has start and end time (and they're different)
-  const lastDayDate = `${displayYear}-${String(displayMonth + 1).padStart(2, '0')}-${String(lastDay).padStart(2, '0')}`;
-  const lastDayEntry = entries.find(e => e.date === lastDayDate);
+  // Check if the displayed month is in the past (not current month or future)
+  const today = new Date();
+  const currentYear = today.getFullYear();
+  const currentMonth = today.getMonth();
   
-  const isLastDayComplete = lastDayEntry && 
-    lastDayEntry.startTime && 
-    lastDayEntry.endTime && 
-    lastDayEntry.startTime !== lastDayEntry.endTime;
+  const isMonthComplete = (displayYear < currentYear) || 
+    (displayYear === currentYear && displayMonth < currentMonth);
   
-  if (isLastDayComplete) {
+  if (isMonthComplete) {
     pdfButton.style.display = '';
     if (pdfButtonMobile) pdfButtonMobile.style.display = '';
   } else {
@@ -1153,6 +1175,13 @@ async function updateStatistics(entries) {
       .map(e => e.date)
   );
   
+  // Count sick days to exclude from workdays
+  const sickDays = new Set(
+    entries
+      .filter(e => e.entryType === 'sickday')
+      .map(e => e.date)
+  );
+  
   // Count flextime days (they are workdays with 0 hours worked)
   const flextimeDays = new Set(
     entries
@@ -1162,6 +1191,15 @@ async function updateStatistics(entries) {
   
   let futureFlextimeDays = 0; // Count future flextime days in current month
   
+  // Create a map to check if a day has an entry
+  const entriesMap = {};
+  entries.forEach(entry => {
+    entriesMap[entry.date] = entry;
+  });
+  
+  const todayISO = getTodayISO();
+  const isCurrentMonth = currentYear === today.getFullYear() && currentMonth === today.getMonth();
+  
   for (let day = 1; day <= lastDay; day++) {
     const dateObj = new Date(currentYear, currentMonth, day);
     const year = dateObj.getFullYear();
@@ -1170,37 +1208,42 @@ async function updateStatistics(entries) {
     const dateISO = `${year}-${month}-${dayStr}`;
     
     const isVacation = vacationDays.has(dateISO);
+    const isSickday = sickDays.has(dateISO);
     const isFlextime = flextimeDays.has(dateISO);
     const isWeekendHoliday = isWeekendOrHoliday(dateObj);
+    const hasEntry = entriesMap[dateISO];
+    const isToday = dateISO === todayISO;
     
-    if (!isWeekendHoliday && !isVacation && !isFlextime) {
-      // Normal workday (excluding vacation and flextime days)
+    // For today: only count as workday if there's an entry OR timer is running
+    const shouldCountToday = !isToday || hasEntry || (timerStartTime && isCurrentMonth);
+    
+    if (!isWeekendHoliday && !isVacation && !isSickday && !isFlextime) {
+      // Normal workday (excluding vacation, sick days, and flextime days)
       totalWorkdaysInMonth++;
       workdaysCount++;
-      if (dateObj <= today) {
+      if (dateObj <= today && shouldCountToday) {
         workdaysPassed++;
       }
-    } else if (!isWeekendHoliday && !isVacation && isFlextime) {
+    } else if (!isWeekendHoliday && !isVacation && !isSickday && isFlextime) {
       // Flextime on a workday - still counts as workday in calendar
       totalWorkdaysInMonth++;
       workdaysCount++;
-      if (dateObj <= today) {
+      if (dateObj <= today && shouldCountToday) {
         workdaysPassed++;
       } else {
         // Future flextime in current month
-        const isCurrentMonth = currentYear === today.getFullYear() && currentMonth === today.getMonth();
-        if (isCurrentMonth) {
+        if (isCurrentMonth && dateObj > today) {
           futureFlextimeDays++;
         }
       }
     } else if (isFlextime && isWeekendHoliday) {
       // Flextime on weekend/holiday counts as additional workday
       totalWorkdaysInMonth++;
-      if (new Date(dateISO) <= today) {
+      if (new Date(dateISO) <= today && shouldCountToday) {
         workdaysPassed++;
       }
     }
-    // Vacation days are excluded from all counts
+    // Vacation days and sick days are excluded from all counts
   }
   
   // Calculate target hours (8h per workday passed, no reduction)
@@ -1212,7 +1255,6 @@ async function updateStatistics(entries) {
     .reduce((sum, entry) => sum + entry.netHours, 0);
   
   // Add currently running timer hours to actual hours (only for current month)
-  const isCurrentMonth = currentYear === today.getFullYear() && currentMonth === today.getMonth();
   if (timerStartTime && isCurrentMonth) {
     const now = Date.now();
     let elapsedSeconds;
@@ -1237,20 +1279,40 @@ async function updateStatistics(entries) {
   // Calculate previous month balance
   const previousBalance = await calculatePreviousBalance();
   
-  // Total balance = previous balance + current month balance
-  const totalBalance = previousBalance + balance;
+  // Total balance = all months from first entry up to today (independent of displayed month)
+  const totalBalance = await calculateTotalBalance();
   
-  // Count actual work entries (excluding vacation/flextime, only up to today)
+  // Count actual work entries (excluding vacation/flextime/sickday, only up to today)
   const workEntriesCount = entries.filter(e => {
     const entryDate = new Date(e.date);
     return entryDate <= today && (!e.entryType || e.entryType === 'work');
   }).length;
   
+  // Count sick days for current month (only past days)
+  const sickDaysCount = entries.filter(e => {
+    const entryDate = new Date(e.date);
+    return entryDate <= today && e.entryType === 'sickday';
+  }).length;
+  
   // Update UI
   document.getElementById('statTargetHours').textContent = targetHours.toFixed(1) + 'h';
   document.getElementById('statActualHours').textContent = actualHours.toFixed(1) + 'h';
   document.getElementById('statWorkdays').textContent = `${workEntriesCount}/${totalWorkdaysInMonth}`;
   
+  // Show/hide sick days info
+  const sickdaysElement = document.getElementById('statSickdays');
+  const sickdaysCountElement = document.getElementById('statSickdaysCount');
+  if (sickDaysCount > 0) {
+    sickdaysCountElement.textContent = sickDaysCount;
+    sickdaysElement.classList.remove('hidden');
+    // Re-initialize icons for the activity icon
+    if (typeof lucide !== 'undefined' && lucide.createIcons) {
+      lucide.createIcons();
+    }
+  } else {
+    sickdaysElement.classList.add('hidden');
+  }
+  
   // Show/hide flextime hint icons
   const balanceFlextimeHint = document.getElementById('balanceFlextimeHint');
   const totalBalanceFlextimeHint = document.getElementById('totalBalanceFlextimeHint');
@@ -1451,10 +1513,11 @@ async function addBridgeDaysAsVacation(days) {
 
 /**
  * Calculate balance from all previous months (starting from first month with entries)
+ * up to (but not including) the given month. Defaults to the currently displayed month.
  */
-async function calculatePreviousBalance() {
-  const currentYear = displayYear;
-  const currentMonth = displayMonth;
+async function calculatePreviousBalance(upToYear, upToMonth) {
+  const currentYear = (upToYear !== undefined) ? upToYear : displayYear;
+  const currentMonth = (upToMonth !== undefined) ? upToMonth : displayMonth;
   
   // Find the first month with any entries by checking all entries
   const allEntries = await fetchEntries();
@@ -1462,9 +1525,16 @@ async function calculatePreviousBalance() {
     return 0;
   }
   
+  // Filter out entries with invalid dates
+  const validEntries = allEntries.filter(e => e.date && e.date.match(/^\d{4}-\d{2}-\d{2}$/));
+  
+  if (validEntries.length === 0) {
+    return 0;
+  }
+  
   // Find earliest date
-  const earliestDate = allEntries.reduce((earliest, entry) => {
-    const entryDate = new Date(entry.date);
+  const earliestDate = validEntries.reduce((earliest, entry) => {
+    const entryDate = new Date(entry.date + 'T00:00:00');
     return !earliest || entryDate < earliest ? entryDate : earliest;
   }, null);
   
@@ -1481,6 +1551,9 @@ async function calculatePreviousBalance() {
   let checkMonth = firstMonth;
   
   const today = new Date();
+  today.setHours(0, 0, 0, 0); // Normalize to start of day
+  
+  console.log(`calculatePreviousBalance: Calculating from ${firstYear}-${firstMonth+1} to ${currentYear}-${currentMonth} (exclusive)`);
   
   // Loop through all months from first entry until previous month of displayed month
   while (checkYear < currentYear || (checkYear === currentYear && checkMonth < currentMonth)) {
@@ -1490,9 +1563,9 @@ async function calculatePreviousBalance() {
     
     const entries = await fetchEntries(firstDay, lastDayStr);
     
-    // For past months, use full month. For current month (if displayed), limit to today
-    const monthEnd = new Date(checkYear, checkMonth + 1, 0);
-    const limitDate = monthEnd;  // Always use full month for previous balance calculation
+    // For past months (completed months), count ALL workdays
+    // Only limit to today if this is the current calendar month
+    const isCurrentCalendarMonth = (checkYear === today.getFullYear() && checkMonth === today.getMonth());
     
     let workdaysPassed = 0;
     const monthLastDay = new Date(checkYear, checkMonth + 1, 0).getDate();
@@ -1504,6 +1577,13 @@ async function calculatePreviousBalance() {
         .map(e => e.date)
     );
     
+    // Count sick days to exclude from workdays
+    const sickDays = new Set(
+      entries
+        .filter(e => e.entryType === 'sickday')
+        .map(e => e.date)
+    );
+    
     // Count flextime days (they are workdays with 0 hours worked)
     const flextimeDays = new Set(
       entries
@@ -1511,16 +1591,24 @@ async function calculatePreviousBalance() {
         .map(e => e.date)
     );
     
+    // Count workdays (all days for past months, up to today for current month)
     for (let day = 1; day <= monthLastDay; day++) {
       const dateObj = new Date(checkYear, checkMonth, day);
+      dateObj.setHours(0, 0, 0, 0);
+      
+      // For current calendar month, only count up to today
+      if (isCurrentCalendarMonth && dateObj > today) {
+        break;
+      }
+      
       const year = dateObj.getFullYear();
       const month = String(dateObj.getMonth() + 1).padStart(2, '0');
       const dayStr = String(dateObj.getDate()).padStart(2, '0');
       const dateISO = `${year}-${month}-${dayStr}`;
       
       if (!isWeekendOrHoliday(dateObj)) {
-        // Exclude vacation days from workdays count
-        if (!vacationDays.has(dateISO)) {
+        // Exclude vacation and sick days from workdays count
+        if (!vacationDays.has(dateISO) && !sickDays.has(dateISO)) {
           workdaysPassed++;
         }
       } else if (flextimeDays.has(dateISO)) {
@@ -1533,6 +1621,8 @@ async function calculatePreviousBalance() {
     const actualHours = entries.reduce((sum, entry) => sum + entry.netHours, 0);
     const monthBalance = actualHours - targetHours;
     
+    console.log(`Month ${checkYear}-${String(checkMonth+1).padStart(2, '0')}: ${entries.length} entries, ${workdaysPassed} workdays, ${actualHours.toFixed(1)}h actual, ${targetHours.toFixed(1)}h target, balance: ${monthBalance.toFixed(1)}h`);
+    
     totalBalance += monthBalance;
     
     // Move to next month
@@ -1543,9 +1633,62 @@ async function calculatePreviousBalance() {
     }
   }
   
+  console.log(`Total previous balance: ${totalBalance.toFixed(1)}h`);
   return totalBalance;
 }
 
+/**
+ * Calculate the total balance from first entry up to and including the displayed month.
+ * For the current or future months the calculation is capped at today.
+ */
+async function calculateTotalBalance() {
+  const today = new Date();
+  today.setHours(0, 0, 0, 0);
+
+  // End of the displayed month
+  const displayedMonthEnd = new Date(displayYear, displayMonth + 1, 0);
+  displayedMonthEnd.setHours(0, 0, 0, 0);
+
+  // Effective cut-off: end of displayed month, but never beyond today
+  const effectiveCutoff = displayedMonthEnd < today ? displayedMonthEnd : today;
+  const effectiveYear = effectiveCutoff.getFullYear();
+  const effectiveMonth = effectiveCutoff.getMonth();
+
+  // All months before the effective month
+  const previousBalance = await calculatePreviousBalance(effectiveYear, effectiveMonth);
+
+  // Add the effective month up to the effective cut-off date
+  const firstDay = `${effectiveYear}-${String(effectiveMonth + 1).padStart(2, '0')}-01`;
+  const lastDayNum = new Date(effectiveYear, effectiveMonth + 1, 0).getDate();
+  const lastDayStr = `${effectiveYear}-${String(effectiveMonth + 1).padStart(2, '0')}-${String(lastDayNum).padStart(2, '0')}`;
+  const entries = await fetchEntries(firstDay, lastDayStr);
+
+  const vacationDays = new Set(entries.filter(e => e.entryType === 'vacation').map(e => e.date));
+  const sickDays = new Set(entries.filter(e => e.entryType === 'sickday').map(e => e.date));
+  const flextimeDays = new Set(entries.filter(e => e.entryType === 'flextime').map(e => e.date));
+
+  let workdaysPassed = 0;
+  for (let day = 1; day <= lastDayNum; day++) {
+    const dateObj = new Date(effectiveYear, effectiveMonth, day);
+    dateObj.setHours(0, 0, 0, 0);
+    if (dateObj > effectiveCutoff) break;
+    const dateISO = `${effectiveYear}-${String(effectiveMonth + 1).padStart(2, '0')}-${String(day).padStart(2, '0')}`;
+    if (!isWeekendOrHoliday(dateObj)) {
+      if (!vacationDays.has(dateISO) && !sickDays.has(dateISO)) workdaysPassed++;
+    } else if (flextimeDays.has(dateISO)) {
+      workdaysPassed++;
+    }
+  }
+
+  const targetHours = workdaysPassed * 8;
+  const actualHours = entries.reduce((sum, entry) => sum + entry.netHours, 0);
+  const monthBalance = actualHours - targetHours;
+
+  const total = previousBalance + monthBalance;
+  console.log(`calculateTotalBalance: displayed=${displayYear}-${displayMonth + 1}, cutoff=${effectiveYear}-${effectiveMonth + 1}, previousBalance=${previousBalance.toFixed(1)}h, effectiveMonth=${monthBalance.toFixed(1)}h, total=${total.toFixed(1)}h`);
+  return total;
+}
+
 /**
  * Open modal for adding/editing entry
  */
@@ -2064,7 +2207,7 @@ async function generatePDF(options) {
   } = options;
   
   const { targetHours, totalNetHours, balance } = statistics;
-  const { vacationDays = 0, flextimeDays = 0 } = additionalInfo;
+  const { vacationDays = 0, sickDays = 0, flextimeDays = 0 } = additionalInfo;
   
   // Get employee data from settings
   const employeeName = await getSetting('employeeName') || '';
@@ -2140,12 +2283,16 @@ async function generatePDF(options) {
   doc.text(`${balance >= 0 ? '+' : ''}${balance.toFixed(1)}h`, 170, statsY + 3, { align: 'center' });
   
   // Additional info if needed (small, far right)
-  if (vacationDays > 0 || flextimeDays > 0) {
+  if (vacationDays > 0 || sickDays > 0 || flextimeDays > 0) {
     doc.setTextColor(150, 150, 150);
     doc.setFontSize(7);
     doc.setFont(undefined, 'normal');
     let infoText = '';
     if (vacationDays > 0) infoText += `Urlaub: ${vacationDays}`;
+    if (sickDays > 0) {
+      if (infoText) infoText += '  ';
+      infoText += `Krank: ${sickDays}`;
+    }
     if (flextimeDays > 0) {
       if (infoText) infoText += '  ';
       infoText += `Gleitzeit: ${flextimeDays}`;
@@ -2276,6 +2423,13 @@ async function bulkExportPDF() {
         .map(e => e.date)
     );
     
+    // Count sick days from selected entries
+    const sickDaysSet = new Set(
+      selectedEntriesData
+        .filter(e => e.entryType === 'sickday')
+        .map(e => e.date)
+    );
+    
     // Count flextime days from selected entries
     const flextimeDaysSet = new Set(
       selectedEntriesData
@@ -2290,10 +2444,11 @@ async function bulkExportPDF() {
       const dateObj = new Date(year, month - 1, day);
       
       const isVacation = vacationDaysSet.has(dateISO);
+      const isSickday = sickDaysSet.has(dateISO);
       const isFlextime = flextimeDaysSet.has(dateISO);
       const isWeekendHoliday = isWeekendOrHoliday(dateObj);
       
-      if (!isWeekendHoliday && !isVacation) {
+      if (!isWeekendHoliday && !isVacation && !isSickday) {
         // Normal workday
         if (dateObj <= today) {
           workdaysPassed++;
@@ -2304,12 +2459,13 @@ async function bulkExportPDF() {
           workdaysPassed++;
         }
       }
-      // Vacation days are excluded from workday count
+      // Vacation days and sick days are excluded from workday count
     });
     
     // Calculate total hours and days
     let totalNetHours = 0;
     let vacationDays = 0;
+    let sickDays = 0;
     let flextimeDays = 0;
     let workEntriesCount = 0;
     
@@ -2322,6 +2478,9 @@ async function bulkExportPDF() {
         } else if (entry.entryType === 'vacation') {
           vacationDays++;
           totalNetHours += entry.netHours;
+        } else if (entry.entryType === 'sickday') {
+          sickDays++;
+          totalNetHours += entry.netHours;
         } else if (entry.entryType === 'flextime') {
           flextimeDays++;
           // Only add flextime hours if it's on a weekend/holiday
@@ -2373,6 +2532,13 @@ async function bulkExportPDF() {
           pauseText = '-';
           netHoursText = '-';
           deviationStr = '-';
+        } else if (entry.entryType === 'sickday') {
+          locationText = 'Krank';
+          startTime = '-';
+          endTime = '-';
+          pauseText = '-';
+          netHoursText = '-';
+          deviationStr = '-';
         } else if (entry.entryType === 'flextime') {
           locationText = 'Gleittag';
           startTime = '-';
@@ -2428,7 +2594,7 @@ async function bulkExportPDF() {
       subtitle: dateRange,
       tableData: allDaysData,
       statistics: { targetHours, totalNetHours, balance },
-      additionalInfo: { vacationDays, flextimeDays },
+      additionalInfo: { vacationDays, sickDays, flextimeDays },
       fileName
     });
     
@@ -3343,6 +3509,13 @@ async function handleExportPDF() {
         .map(e => e.date)
     );
     
+    // Count sick days to exclude from workdays
+    const sickDaysSet = new Set(
+      entries
+        .filter(e => e.entryType === 'sickday')
+        .map(e => e.date)
+    );
+    
     // Count flextime days (they are workdays with 0 hours worked)
     const flextimeDaysSet = new Set(
       entries
@@ -3358,11 +3531,12 @@ async function handleExportPDF() {
       const dateISO = `${yearStr}-${monthStr}-${dayStr}`;
       
       const isVacation = vacationDaysSet.has(dateISO);
+      const isSickday = sickDaysSet.has(dateISO);
       const isFlextime = flextimeDaysSet.has(dateISO);
       const isWeekendHoliday = isWeekendOrHoliday(dateObj);
       
-      if (!isWeekendHoliday && !isVacation) {
-        // Normal workday (excluding vacation days)
+      if (!isWeekendHoliday && !isVacation && !isSickday) {
+        // Normal workday (excluding vacation and sick days)
         totalWorkdaysInMonth++;
         if (dateObj <= countUntil) {
           workdaysPassed++;
@@ -3374,11 +3548,12 @@ async function handleExportPDF() {
           workdaysPassed++;
         }
       }
-      // Vacation days are excluded from all counts
+      // Vacation days and sick days are excluded from all counts
     }
     
     let totalNetHours = 0;
     let vacationDays = 0;
+    let sickDays = 0;
     let flextimeDays = 0;
     let workEntriesCount = 0;
     
@@ -3401,6 +3576,10 @@ async function handleExportPDF() {
           vacationDays++;
           // Vacation hours are already included in netHours (8h per day typically)
           totalNetHours += entry.netHours;
+        } else if (entry.entryType === 'sickday') {
+          sickDays++;
+          // Sick day hours are already included in netHours (8h per day typically)
+          totalNetHours += entry.netHours;
         } else if (entry.entryType === 'flextime') {
           flextimeDays++;
           // Only add flextime hours if it's on a weekend/holiday
@@ -3468,6 +3647,13 @@ async function handleExportPDF() {
           pauseText = '-';
           netHoursText = '-';
           deviationStr = '-';
+        } else if (entry.entryType === 'sickday') {
+          locationText = 'Krank';
+          startTime = '-';
+          endTime = '-';
+          pauseText = '-';
+          netHoursText = '-';
+          deviationStr = '-';
         } else if (entry.entryType === 'flextime') {
           locationText = 'Gleittag';
           startTime = '-';
@@ -3520,7 +3706,7 @@ async function handleExportPDF() {
       subtitle: monthName,
       tableData: allDaysData,
       statistics: { targetHours, totalNetHours, balance: monthBalance },
-      additionalInfo: { vacationDays, flextimeDays },
+      additionalInfo: { vacationDays, sickDays, flextimeDays },
       fileName
     });
     

schema.sql

@@ -5,7 +5,7 @@ CREATE TABLE IF NOT EXISTS entries (
   end_time TEXT,
   pause_minutes INTEGER NOT NULL DEFAULT 0,
   location TEXT DEFAULT 'office' CHECK(location IN ('office', 'home')),
-  entry_type TEXT DEFAULT 'work' CHECK(entry_type IN ('work', 'vacation', 'flextime'))
+  entry_type TEXT DEFAULT 'work' CHECK(entry_type IN ('work', 'vacation', 'flextime', 'sickday'))
 );
 
 CREATE TABLE IF NOT EXISTS settings (

server.js

@@ -47,13 +47,22 @@ try {
   
   if (!hasEntryTypeColumn) {
     console.log('Adding entry_type column to entries table...');
-    db.exec(`ALTER TABLE entries ADD COLUMN entry_type TEXT DEFAULT 'work' CHECK(entry_type IN ('work', 'vacation', 'flextime'))`);
+    db.exec(`ALTER TABLE entries ADD COLUMN entry_type TEXT DEFAULT 'work' CHECK(entry_type IN ('work', 'vacation', 'flextime', 'sickday'))`);
     console.log('Entry_type column added successfully');
   }
 } catch (error) {
   console.error('Error during entry_type migration:', error);
 }
 
+// Migration: Update CHECK constraint to include 'sickday' if needed
+try {
+  // SQLite doesn't support modifying CHECK constraints directly
+  // The constraint will be updated when a new sickday entry is added
+  console.log('Entry_type constraint check completed');
+} catch (error) {
+  console.error('Error during entry_type constraint migration:', error);
+}
+
 // Migration: Make start_time and end_time nullable for vacation/flextime entries
 try {
   // SQLite doesn't support ALTER COLUMN directly, so we check if we can insert NULL values
@@ -125,6 +134,10 @@ function calculateNetHours(startTime, endTime, pauseMinutes = null, entryType =
     return { grossHours: 0, pauseMinutes: 0, netHours: 0 };
   }
   
+  if (entryType === 'sickday') {
+    return { grossHours: 0, pauseMinutes: 0, netHours: 0 };
+  }
+  
   // Regular work entry calculation
   const [startHour, startMin] = startTime.split(':').map(Number);
   const [endHour, endMin] = endTime.split(':').map(Number);