refactor: altered Controller structure for better coupling

src/main/java/edu/group5/app/App.java

@@ -4,7 +4,6 @@
 
 import edu.group5.app.control.MainController;
 import edu.group5.app.control.OrgAPIWrapper;
-import edu.group5.app.view.MainView;
 import javafx.application.Application;
 import javafx.scene.Scene;
 import javafx.scene.image.Image;
@@ -18,12 +17,10 @@
 public class App extends Application {
   @Override
   public void start(Stage stage) {
-    // AppModel model = new AppModel();
     MainController controller = new MainController();
-    MainView view = new MainView(controller);
 
-    controller.setMainView(view);
-    Scene scene = view.createView();
+    Scene scene = controller.getMainView().getScene();
+    controller.showBrowsePage();
 
     stage.getIcons().add(new Image(getClass().getResource("/header/images/hmh-logo.png").toExternalForm()));
     stage.setTitle("Help-Me-Help");

src/main/java/edu/group5/app/control/BrowseCardController.java

@@ -1,9 +1,9 @@
 package edu.group5.app.control;
 
-public class BrowseOrgController {
+public class BrowseCardController {
   private final MainController controller;
 
-  public BrowseOrgController(MainController mainController) {
+  public BrowseCardController(MainController mainController) {
     this.controller = mainController;
   }
 }

src/main/java/edu/group5/app/control/BrowsePageController.java

@@ -1,4 +1,9 @@
 package edu.group5.app.control;
 
 public class BrowsePageController {
+  private final MainController controller;
+
+  public BrowsePageController(MainController mainController) {
+    this.controller = mainController;
+  }
 }

src/main/java/edu/group5/app/control/HeaderController.java

@@ -14,6 +14,7 @@ public void handleHomeBtn() {
 
   public void handleCausesBtn() {
     System.out.println("Causes button pressed");
+    controller.showBrowsePage();
   }
 
   public void handleAboutBtn() {

src/main/java/edu/group5/app/control/MainController.java

@@ -3,22 +3,34 @@
 import edu.group5.app.view.MainView;
 
 public class MainController {
-  private MainView view;
+  private final MainView view;
+  private final HeaderController headerController;
+  private final HomePageController homePageController;
+  private final BrowsePageController browsePageController;
+  private final BrowseCardController browseCardController;
 
-  public void setMainView(MainView view) {
-    this.view = view;
+  public MainController() {
+    this.view = new MainView();
+    this.headerController = new HeaderController(this);
+    this.homePageController = new HomePageController(this);
+    this.browsePageController = new BrowsePageController(this);
+    this.browseCardController = new BrowseCardController(this);
+  }
+
+  public MainView getMainView() {
+    return view;
   }
 
   public void showHomePage() {
-    view.showHomePage();
+    view.showHomePage(homePageController, headerController);
   }
 
   public void showLoginPage() {
     view.showLoginPage();
   }
 
   public void showBrowsePage() {
-    view.showBrowsePage();
+    view.showBrowsePage(browsePageController, browseCardController, headerController);
   }
 
   public void showAboutUsPage() {}