#27 gardenplanmodel bugfixed cropid

src/main/java/ch/zhaw/gartenverwaltung/gardenplan/Gardenplanmodel.java

@@ -12,9 +12,9 @@ import ch.zhaw.gartenverwaltung.types.Task;
 import java.io.IOException;
 import java.time.LocalDate;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.Optional;
+import java.util.function.Supplier;
 
 
 /**
@@ -24,6 +24,7 @@ public class Gardenplanmodel {
     private GardenPlan gardenPlan;
     private List<Crop> cropList;
     private TaskListModel taskListModel;
+    private Object IllegalArgumentException;
 
     /**
      * Constructor of Gardenplan model
@@ -63,9 +64,8 @@ public class Gardenplanmodel {
      * @throws IOException If the database cannot be accessed
      */
     public void removeCrop(Crop crop) throws IOException {
-
         gardenPlan.removeCrop(crop);
-        taskListModel.removeTasksForCrop(crop);
+        taskListModel.removeTasksForCrop(crop.getCropId().orElseThrow(IllegalArgumentException::new));
         cropList = gardenPlan.getCrops();
     }
     /**

src/main/java/ch/zhaw/gartenverwaltung/io/JsonTaskDatabase.java

@@ -159,5 +159,8 @@ public class JsonTaskDatabase implements TaskDatabase{
                         (res, task) -> res.put(task.getId(), task),
                         (existing, replacement) -> {});
         }
+
+        Long maxId = taskMap.isEmpty() ? 0L : Collections.max(taskMap.keySet());
+        idProvider = new IdProvider(maxId);
     }
 }

src/main/java/ch/zhaw/gartenverwaltung/types/Task.java

@@ -21,11 +21,11 @@ public class Task {
      * default constructor
      * (used by Json deserializer)
      */
-    public Task(long cropId){
+    public Task(){
         name= "";
         description= "";
         startDate = LocalDate.now();
-        this.cropId = cropId;
+       // this.cropId = cropId;
     }
 
     public Task(String name, String description, LocalDate startDate, long cropId) {