1 logout presenter

README.md

@@ -97,7 +97,7 @@ The TODOs are summarized below (by file) to help your team decide how to split t
 ---
 
 - `Main.java` (tip: look at how other use cases have been added)
-    -[ ] TODO: add the logout use case to the app
+    -[X] TODO: add the logout use case to the app
 
 ---
 
@@ -116,8 +116,8 @@ The TODOs are summarized below (by file) to help your team decide how to split t
 ---
 
 - `LogoutInteractor.java` (tip: refer to `ChangePasswordInteractor.java` for similar code)
-    -[ ] TODO: save the DAO and Presenter in the instance variables.
-    -[ ] TODO: implement the logic of the Logout Use Case
+    -[X] TODO: save the DAO and Presenter in the instance variables.
+    -[X] TODO: implement the logic of the Logout Use Case
 
 > Note: there is no input data necessary for this use case.
 

src/main/java/app/Main.java

@@ -12,6 +12,7 @@ public static void main(String[] args) {
                 .addSignupUseCase()
                 .addLoginUseCase()
                 .addChangePasswordUseCase()
+                .addLogoutUseCase()
                 .build();
 
         application.pack();

src/main/java/interface_adapter/logout/LogoutController.java

@@ -1,22 +1,28 @@
 package interface_adapter.logout;
 
+import use_case.login.LoginInputData;
 import use_case.logout.LogoutInputBoundary;
+import use_case.logout.LogoutInteractor;
+import use_case.logout.LogoutOutputData;
 
 /**
  * The controller for the Logout Use Case.
  */
 public class LogoutController {
 
-    private LogoutInputBoundary logoutUseCaseInteractor;
+    private final LogoutInputBoundary logoutUseCaseInteractor;
 
     public LogoutController(LogoutInputBoundary logoutUseCaseInteractor) {
         // TODO: Save the interactor in the instance variable.
+        this.logoutUseCaseInteractor = logoutUseCaseInteractor;
+
     }
 
     /**
      * Executes the Logout Use Case.
      */
     public void execute() {
         // TODO: run the use case interactor for the logout use case
+        logoutUseCaseInteractor.execute();
     }
 }

src/main/java/use_case/logout/LogoutInteractor.java

@@ -4,20 +4,24 @@
  * The Logout Interactor.
  */
 public class LogoutInteractor implements LogoutInputBoundary {
-    private LogoutUserDataAccessInterface userDataAccessObject;
-    private LogoutOutputBoundary logoutPresenter;
+    private final LogoutUserDataAccessInterface userDataAccessObject;
+    private final LogoutOutputBoundary logoutPresenter;
 
     public LogoutInteractor(LogoutUserDataAccessInterface userDataAccessInterface,
                             LogoutOutputBoundary logoutOutputBoundary) {
-        // TODO: save the DAO and Presenter in the instance variables.
+        this.userDataAccessObject = userDataAccessInterface;
+        this.logoutPresenter = logoutOutputBoundary;
     }
 
     @Override
     public void execute() {
-        // TODO: implement the logic of the Logout Use Case
         // * set the current username to null in the DAO
         // * instantiate the `LogoutOutputData`, which needs to contain the username.
         // * tell the presenter to prepare a success view.
+        final String username = userDataAccessObject.getCurrentUsername();
+        userDataAccessObject.setCurrentUsername(null);
+        final LogoutOutputData logoutOutputData = new LogoutOutputData(username);
+        logoutPresenter.prepareSuccessView(logoutOutputData);
     }
 }