- calculate mittagspause with offset correctly

- show provisionary mittagspause
- handle zapfenstreich the same way

src/main/java/de/szimnau/zeitlaeufer/WorkdayLoadingBar.java

@@ -20,12 +20,12 @@ public interface WorkdayLoadingBar {
    void showLoadingBar(boolean debug, boolean passedMinutesZero);
 
 
-   default boolean canHaveHadNoMittagspauseYet() {
-      return canHaveHadNoMittagspauseYet(false);
+   default boolean couldHaveHadNoMittagspauseYet() {
+      return couldHaveHadNoMittagspauseYet(false);
    }
 
 
-   default boolean canHaveHadNoMittagspauseYet(boolean debugWithPassedMinutesZero) {
+   default boolean couldHaveHadNoMittagspauseYet(boolean debugWithPassedMinutesZero) {
       return getPassedMinutes(debugWithPassedMinutesZero) < DEFAULT_NUMBER_WORK_MINS_BEFORE_LUNCH;
    }
 
@@ -33,6 +33,12 @@ public interface WorkdayLoadingBar {
    long getPassedMinutes(boolean passedMinutesZero);
 
 
+   default LocalTime estimateMittagspause() {
+      LocalTime defaultEndTime = getStartTime().plusMinutes(DEFAULT_NUMBER_WORK_MINS_BEFORE_LUNCH);
+      return calculateRealMittagspause(defaultEndTime);
+   }
+
+
    default void initMittagspause() {
       LocalTime defaultEndTime = getStartTime().plusMinutes(DEFAULT_NUMBER_WORK_MINS_BEFORE_LUNCH);
       realInitMittagspause(defaultEndTime);
@@ -43,7 +49,7 @@ public interface WorkdayLoadingBar {
 
 
    default void initMittagspause(int endTimeOffset) {
-      LocalTime offsetEndTime = getStartTime().plusMinutes(DEFAULT_NUMBER_WORK_MINS_BEFORE_LUNCH + endTimeOffset);
+      LocalTime offsetEndTime = estimateMittagspause().plusMinutes(endTimeOffset);
       realInitMittagspause(offsetEndTime);
    }
 
@@ -55,13 +61,24 @@ public interface WorkdayLoadingBar {
 
 
    private void realInitMittagspause(LocalTime theoreticalEndTime) {
-      setEndTime(theoreticalEndTime.isAfter(LATEST_LUNCH_TIME) ? LATEST_LUNCH_TIME : theoreticalEndTime);
+      setEndTime(calculateRealMittagspause(theoreticalEndTime));
+   }
+
+
+   private LocalTime calculateRealMittagspause(LocalTime theoreticalMittagspause) {
+      return theoreticalMittagspause.isAfter(LATEST_LUNCH_TIME) ? LATEST_LUNCH_TIME : theoreticalMittagspause;
    }
 
 
    void setEndTime(LocalTime endTime);
 
 
+   default LocalTime estimateZapfenstreich(Integer mittagspauseDuration) {
+      int estMittagspauseDuration = mittagspauseDuration != null ? mittagspauseDuration : MIN_LUNCH_DURATION;
+      return getStartTime().plusMinutes(MAX_NUMBER_WORK_MINS + estMittagspauseDuration);
+   }
+
+
    default void initZapfenstreich() {
       LocalTime trueEndTime = getStartTime().plusMinutes(MAX_NUMBER_WORK_MINS + MIN_LUNCH_DURATION);
       realInitZapfenstreich(MIN_LUNCH_DURATION, trueEndTime);

src/main/java/de/szimnau/zeitlaeufer/tools/LoadingBarCliTools.java

@@ -61,16 +61,18 @@ public class LoadingBarCliTools {
       WorkdayLoadingBar lb = constructor.apply(startTime);
       boolean debug = false;
       boolean passedMinutesZero = false;
-      if (lb.couldHaveHadNoMittagspauseYetYetYet(debug && passedMinutesZero)) {
+      if (lb.couldHaveHadNoMittagspauseYet(debug && passedMinutesZero)) {
          handleMittagspause(br, lb);
          lb.showLoadingBar(debug, passedMinutesZero);
       }
-      handleZapfenstreich(br, lb, passedMinutesZero);
+      handleZapfenstreich(br, lb);
       lb.showLoadingBar(debug, passedMinutesZero);
    }
 
 
    private static void handleMittagspause(BufferedReader br, WorkdayLoadingBar lb) throws IOException {
+      LocalTime vorlaeufigeEndzeit = lb.estimateMittagspause();
+      println("Mittagspause: " + FormatTools.TIME_FORMATTER.format(vorlaeufigeEndzeit));
       print("Mittagspause verschieben um (optional): ");
       String mittagspauseOffsetRaw = br.readLine();
       if (mittagspauseOffsetRaw != null && !mittagspauseOffsetRaw.isBlank()) {
@@ -89,15 +91,14 @@ public class LoadingBarCliTools {
    }
 
 
-   private static void handleZapfenstreich(BufferedReader br, WorkdayLoadingBar lb, boolean passedMinutesZero) throws IOException {
+   private static void handleZapfenstreich(BufferedReader br, WorkdayLoadingBar lb) throws IOException {
       print("Mittagspause hat gedauert (optional): ");
       String mittagspauseDurationRaw = br.readLine();
       Integer mittagspauseDuration = null;
       if (mittagspauseDurationRaw != null && !mittagspauseDurationRaw.isBlank()) {
          mittagspauseDuration = Integer.valueOf(mittagspauseDurationRaw);
       }
-      LocalTime vorlaeufigeEndzeit = lb.getStartTime().plusMinutes(lb.getPassedMinutes(passedMinutesZero))
-         .plusMinutes(mittagspauseDuration != null ? mittagspauseDuration : WorkdayLoadingBar.MIN_LUNCH_DURATION);
+      LocalTime vorlaeufigeEndzeit = lb.estimateZapfenstreich(mittagspauseDuration);
       println("Endzeit: " + FormatTools.TIME_FORMATTER.format(vorlaeufigeEndzeit));
       print("Feierabend verschieben um (optional): ");
       String zapfenstreichOffsetRaw = br.readLine();