Pausenbuchung hinzugefügt

src/utils/time.js

@@ -28,9 +28,31 @@ function isWorkDay(dateStr, workDays) {
   return Array.isArray(workDays) && workDays.includes(day);
 }
 
-/** Berechnet die tatsächlich geleisteten Minuten abzüglich Pause. */
-function computeWorkedMinutes(startTime, endTime, breakMinutes) {
-  return timeToMinutes(endTime) - timeToMinutes(startTime) - Number(breakMinutes || 0);
+/**
+ * Summiert alle Einzelpausen.
+ * @param {Array<{start: string, end: string}>} breaks
+ * @returns {number} Gesamte Pausenzeit in Minuten
+ */
+function computeTotalBreakMinutes(breaks) {
+  if (!Array.isArray(breaks)) return 0;
+  return breaks.reduce((total, b) => {
+    if (!b || !b.start || !b.end) return total;
+    const duration = timeToMinutes(b.end) - timeToMinutes(b.start);
+    return total + Math.max(0, duration);
+  }, 0);
+}
+
+/**
+ * Berechnet die tatsächlich geleisteten Netto-Minuten.
+ * @param {string} startTime  z. B. "08:00"
+ * @param {string} endTime    z. B. "17:00"
+ * @param {Array<{start: string, end: string}>} breaks  Pausenzeiten
+ * @returns {number}
+ */
+function computeWorkedMinutes(startTime, endTime, breaks) {
+  const gross = timeToMinutes(endTime) - timeToMinutes(startTime);
+  const totalBreak = computeTotalBreakMinutes(breaks);
+  return gross - totalBreak;
 }
 
 /** Saldo (Über-/Minusstunden) eines einzelnen Tages in Minuten. */
@@ -64,6 +86,7 @@ module.exports = {
   minutesToHM,
   formatBalance,
   isWorkDay,
+  computeTotalBreakMinutes,
   computeWorkedMinutes,
   computeBalanceMinutes,
   formatDateDisplay,