3b2

src/main/java/api/MongoGradeDataBase.java

@@ -261,13 +261,32 @@ public Team getMyTeam() {
                 .addHeader(CONTENT_TYPE, APPLICATION_JSON)
                 .build();
 
-        final Response response;
-        final JSONObject responseBody;
+        try {
+            final Response response = client.newCall(request).execute();
+            final String raw = response.body() != null ? response.body().string() : "";
+            if (raw.isEmpty()) {
+                throw new RuntimeException("Empty response from server.");
+            }
+
+            final JSONObject responseBody = new JSONObject(raw);
+
+            if (responseBody.getInt(STATUS_CODE) == SUCCESS_CODE) {
+                final JSONObject team = responseBody.getJSONObject("team");
+                final JSONArray membersArray = team.getJSONArray("members");
+                final String[] members = new String[membersArray.length()];
+                for (int i = 0; i < membersArray.length(); i++) {
+                    members[i] = membersArray.getString(i);
+                }
 
-        // TODO Task 3b: Implement the logic to get the team information
-        // HINT 1: Look at the formTeam method to get an idea on how to parse the response
-        // HINT 2: You may find it useful to just initially print the contents of the JSON
-        //         then work on the details of how to parse it.
-        return null;
+                return Team.builder()
+                        .name(team.getString(NAME))
+                        .members(members)
+                        .build();
+            } else {
+                throw new RuntimeException(responseBody.optString(MESSAGE, "Failed to get team."));
+            }
+        } catch (IOException | JSONException e) {
+            throw new RuntimeException(e);
+        }
     }
 }

src/main/java/app/Config.java

@@ -65,5 +65,8 @@ public GetAverageGradeUseCase getAverageGradeUseCase() {
         return new GetAverageGradeUseCase(gradeDataBase);
     }
 
-    // TODO Task 4: add code for the new GetTopGradeUseCase following the same pattern as the other use cases above.
+
+
+    public GetTopGradeUseCase getTopGradeUseCase() {return new GetTopGradeUseCase(gradeDataBase);}
 }
+

src/main/java/app/gui/Application.java

@@ -21,12 +21,7 @@
 import api.MongoGradeDataBase;
 import app.Config;
 import entity.Grade;
-import usecase.FormTeamUseCase;
-import usecase.GetAverageGradeUseCase;
-import usecase.GetGradeUseCase;
-import usecase.JoinTeamUseCase;
-import usecase.LeaveTeamUseCase;
-import usecase.LogGradeUseCase;
+import usecase.*;
 
 /**
  * GUI class to run the GUI for the Grade App.
@@ -55,6 +50,8 @@ public static void main(String[] args) {
         final JoinTeamUseCase joinTeamUseCase = config.joinTeamUseCase();
         final LeaveTeamUseCase leaveTeamUseCase = config.leaveTeamUseCase();
         final GetAverageGradeUseCase getAverageGradeUseCase = config.getAverageGradeUseCase();
+        final GetTopGradeUseCase getTopGradeUseCase = config.getTopGradeUseCase();
+
 
         // this is the code that runs to set up our GUI
         SwingUtilities.invokeLater(() -> {
@@ -70,7 +67,9 @@ public static void main(String[] args) {
             final JPanel logGradeCard = createLogGradeCard(frame, logGradeUseCase);
             final JPanel formTeamCard = createFormTeamCard(frame, formTeamUseCase);
             final JPanel joinTeamCard = createJoinTeamCard(frame, joinTeamUseCase);
-            final JPanel manageTeamCard = createManageTeamCard(frame, leaveTeamUseCase, getAverageGradeUseCase);
+            final JPanel manageTeamCard = createManageTeamCard(frame, leaveTeamUseCase, getAverageGradeUseCase, getTopGradeUseCase);
+
+
 
             cardPanel.add(defaultCard, "DefaultCard");
             cardPanel.add(getGradeCard, "GetGradeCard");
@@ -324,14 +323,14 @@ public void actionPerformed(ActionEvent e) {
     // TODO Task 4: modify this method so that it takes in a getTopGradeUseCase
     //              Note: this will require you to update the code that calls this method.
     private static JPanel createManageTeamCard(JFrame jFrame, LeaveTeamUseCase leaveTeamUseCase,
-                                               GetAverageGradeUseCase getAverageGradeUseCase) {
+                                               GetAverageGradeUseCase getAverageGradeUseCase, GetTopGradeUseCase getTopGradeUseCase ) {
         final JPanel theCard = new JPanel();
         theCard.setLayout(new GridLayout(ROWS, COLS));
         final JTextField courseField = new JTextField(20);
         // make a separate line.
         final JButton getAverageButton = new JButton("Get Average Grade");
         // TODO Task 4: Add another button for "Get Top Grade" (check the getAverageButton for example)
-
+        final JButton getTopButton = new JButton("Get Top Grade");
         final JButton leaveTeamButton = new JButton("Leave Team");
         final JLabel resultLabel = new JLabel();
 
@@ -357,6 +356,20 @@ public void actionPerformed(ActionEvent e) {
         });
 
         // TODO Task 4: Add action listener for getTopGrade button, follow example of getAverageButton
+        getTopButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                final String course = courseField.getText();
+                try {
+                    final float avg = getTopGradeUseCase.getTopGrade(course);
+                    JOptionPane.showMessageDialog(jFrame, "Top Grade: " + avg);
+                    courseField.setText("");
+                }
+                catch (JSONException ex) {
+                    JOptionPane.showMessageDialog(jFrame, ex.getMessage());
+                }
+            }
+        });
 
         leaveTeamButton.addActionListener(new ActionListener() {
             /**
@@ -379,6 +392,7 @@ public void actionPerformed(ActionEvent e) {
         theCard.add(new JLabel("The course you want to calculate the team average for:"));
         theCard.add(courseField);
         theCard.add(getAverageButton);
+        theCard.add(getTopButton);
         theCard.add(leaveTeamButton);
         theCard.add(resultLabel);
         return theCard;

src/main/java/usecase/GetAverageGradeUseCase.java

@@ -20,18 +20,38 @@ public GetAverageGradeUseCase(GradeDataBase gradeDataBase) {
      * @return The average grade.
      */
     public float getAverageGrade(String course) {
-        // Call the API to get usernames of all your team members
-        float sum = 0;
+        float sum = 0f;
         int count = 0;
-        // TODO Task 3b: Go to the MongoGradeDataBase class and implement getMyTeam.
+
         final Team team = gradeDataBase.getMyTeam();
-        // Call the API to get all the grades for the course for all your team members
-        // TODO Task 3a: Complete the logic of calculating the average course grade for
-        //              your team members. Hint: the getGrades method might be useful.
+        if (team == null || team.getMembers() == null || team.getMembers().length == 0) {
+            throw new IllegalStateException();
+        }
+
+        for (String username : team.getMembers()) {
+            if (username == null || username.isBlank()) continue;
+            Grade[] grades;
+            try {
+                grades = gradeDataBase.getGrades(username);
+            } catch (RuntimeException ex) {
+                continue;
+            }
+            if (grades == null) continue;
+
+            for (Grade g : grades) {
+                if (g == null) continue;
+                if (course.equals(g.getCourse())) {
+                    sum += g.getGrade();
+                    count++;
+                    break;
+                }
+            }
+        }
 
         if (count == 0) {
-            return 0;
+            throw new IllegalStateException();
         }
         return sum / count;
     }
+
 }