feat: locking days, if they are submitted and accepted

fixed #76

Backend/models/compoundDay.go

@@ -17,6 +17,17 @@ type CompoundDay struct {
 	DayParts []IWorkDay
 }
 
+// IsSubmittedAndAccepted implements IWorkDay.
+func (c *CompoundDay) IsSubmittedAndAccepted() bool {
+	var isSubmittedAndAccepted = true
+	for _, day := range c.DayParts {
+		_isSubmittedAndAccepted := day.IsSubmittedAndAccepted()
+		isSubmittedAndAccepted = isSubmittedAndAccepted && _isSubmittedAndAccepted
+		slog.Info("Result from IsSubmittedCheck", "Result", _isSubmittedAndAccepted, "compount", day.ToString())
+	}
+	return isSubmittedAndAccepted
+}
+
 func NewCompondDay(date time.Time, dayParts ...IWorkDay) *CompoundDay {
 	return &CompoundDay{Day: date, DayParts: dayParts}
 }