added new Methods to filter List by Crop ID

src/main/java/ch/zhaw/gartenverwaltung/taskList/TaskListModel.java

@@ -12,6 +12,7 @@ import java.time.LocalDate;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.List;
+import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
 public class TaskListModel {
@@ -78,6 +79,10 @@ public class TaskListModel {
         taskDatabase.removeTask(task);
     }
 
+    private List<Task> filterListByCrop(List<Task> taskList, Long cropId) {
+        return taskList.stream().filter(task -> task.getCropId() == cropId).collect(Collectors.toList());
+    }
+
     /**
      * Method to get all Tasks
      * @return List of all Tasks
@@ -87,6 +92,15 @@ public class TaskListModel {
         return getFilteredTaskList(LocalDate.MIN, LocalDate.MAX);
     }
 
+    /**
+     * Method to get all Tasks for specific Crop
+     * @return List of all Tasks for with given CropID
+     * @throws IOException If the database cannot be accessed
+     */
+    public List<Task> getTaskListForCrop(Long cropId) throws IOException {
+        return filterListByCrop(getTaskList(), cropId);
+    }
+
     /**
      * Method to get all Tasks which are today or in future
      * @return List of Tasks
@@ -96,6 +110,15 @@ public class TaskListModel {
         return getFilteredTaskList(LocalDate.now(), LocalDate.MAX);
     }
 
+    /**
+     * Method to get all Tasks which are today or in future for specific Crop
+     * @return List of Tasks with given crop ID
+     * @throws IOException If the database cannot be accessed
+     */
+    public List<Task> getFutureTasksForCrop(Long cropId) throws IOException {
+        return filterListByCrop(getFutureTasks(), cropId);
+    }
+
     /**
      * Method to get all Tasks which are today or in past
      * @return List of Tasks
@@ -105,6 +128,15 @@ public class TaskListModel {
         return getFilteredTaskList(LocalDate.MIN, LocalDate.now());
     }
 
+    /**
+     * Method to get all Tasks which are today or in past for specifc crop
+     * @return List of Tasks with given grop id
+     * @throws IOException If the database cannot be accessed
+     */
+    public List<Task> getPastTasksForCrop(Long cropId) throws IOException {
+        return filterListByCrop(getPastTasks(), cropId);
+    }
+
     /**
      * Method to get an List of 7 Tasklists for the next 7 days. Index 0 is Tasklist for Today.
      * @return List with length 7 (List<List<Task>>)
@@ -119,6 +151,20 @@ public class TaskListModel {
         return dayTaskList;
     }
 
+    /**
+     * Method to get an List of 7 Tasklists for the next 7 days. (Filtered Index 0 is Tasklist for Today.
+     * @return List with length 7 (List<List<Task>>)
+     * @throws IOException If the database cannot be accessed
+     */
+    public List<List<Task>> getTasksUpcomingWeekForCrop(Long cropId) throws IOException {
+        List<List<Task>> dayTaskList = new ArrayList<>();
+        for(int i = 0; i < 7; i++) {
+            LocalDate date = LocalDate.now().plusDays(i);
+            dayTaskList.add(filterListByCrop(taskDatabase.getTaskList(date, date), cropId));
+        }
+        return dayTaskList;
+    }
+
     /**
      * Method to get Tasklist filtered by date.
      * @param start the start date for the filter