Refactor/frontend structure

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

@@ -1,19 +1,19 @@
 package edu.group5.app;
 
-import edu.group5.app.control.MainController;
+import edu.group5.app.control.NavigationController;
 import edu.group5.app.control.wrapper.DbWrapper;
 import edu.group5.app.control.wrapper.OrgApiWrapper;
-import edu.group5.app.model.donation.Donation;
+import edu.group5.app.model.AppState;
 import edu.group5.app.model.donation.DonationRepository;
 import edu.group5.app.model.donation.DonationService;
 import edu.group5.app.model.organization.OrganizationRepository;
 import edu.group5.app.model.organization.OrganizationService;
-import edu.group5.app.model.user.User;
 import edu.group5.app.model.user.UserRepository;
 import edu.group5.app.model.user.UserService;
 import javafx.application.Application;
 import javafx.scene.Scene;
 import javafx.scene.image.Image;
+import javafx.scene.layout.BorderPane;
 import javafx.stage.Stage;
 
 import java.util.List;
@@ -28,9 +28,12 @@ public class App extends Application {
   DbWrapper dbWrapper;
   UserRepository userRepository;
   DonationRepository donationRepository;
+
+  BorderPane root;
+  AppState appState;
+  NavigationController nav;
+
   private Logger logger;
-  private MainController controller;
-  private Scene scene;
 
   @Override
   public void init() {
@@ -69,18 +72,19 @@ public void init() {
     DonationService donationService = new DonationService(this.donationRepository, organizationRepository);
     OrganizationService organizationService = new OrganizationService(organizationRepository);
 
-    this.controller = new MainController(userService, donationService, organizationService);
-
-    this.scene = controller.getMainView().getScene();
+    this.root = new BorderPane();
+    this.appState = new AppState();
+    this.nav = new NavigationController(root, appState, userService, donationService, organizationService);
   }
 
   @Override
   public void start(Stage stage) {
-    this.controller.showLoginPage();
+    this.nav.showLoginPage();
 
+    Scene scene = new Scene(root, 1280, 720);
     stage.getIcons().add(new Image(getClass().getResource("/header/images/hmh-logo.png").toExternalForm()));
     stage.setTitle("Help-Me-Help");
-    stage.setScene(this.scene);
+    stage.setScene(scene);
     stage.show();
   }
 

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

@@ -0,0 +1,84 @@
+package edu.group5.app.control;
+
+import edu.group5.app.model.AppState;
+import edu.group5.app.model.donation.Donation;
+import edu.group5.app.model.donation.DonationService;
+import edu.group5.app.model.organization.Organization;
+import edu.group5.app.model.user.Customer;
+import edu.group5.app.model.user.User;
+
+import java.math.BigDecimal;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+public class DonationController {
+  private final AppState appState;
+  private final NavigationController nav;
+  private final DonationService service;
+
+  public DonationController(AppState appState, NavigationController nav, DonationService service) {
+    this.appState = appState;
+    this.nav = nav;
+    this.service = service;
+  }
+
+  public Map<Integer, Donation> getUserDonations(int userId) {
+    return service.getDonationRepository().filterByUser(userId);
+  }
+
+  public Set<Integer> getUniqueOrgs() {
+    Map<Integer, Donation> userDonations = getUserDonations(appState.getCurrentUser().getUserId());
+
+    Set<Integer> uniqueOrgs = new HashSet<>();
+    for (Donation donation : userDonations.values()) {
+      uniqueOrgs.add(donation.organizationId());
+    }
+
+    return uniqueOrgs;
+  }
+
+  public void handleDonate() {
+    // Get session data from MainController
+    User currentUser = appState.getCurrentUser();
+    Organization currentOrg = appState.getCurrentOrganization();
+    BigDecimal amount = appState.getCurrentDonationAmount();
+
+    if (currentUser == null) {
+      System.err.println("Error: No user logged in");
+      return;
+    }
+    if (!(currentUser instanceof Customer customer)) {
+      System.err.println("Error: Only customers can donate");
+      return;
+    }
+    if (currentOrg == null) {
+      System.err.println("Error: No organization selected");
+      return;
+    }
+    if (amount == null || amount.compareTo(BigDecimal.ZERO) <= 0) {
+      System.err.println("Error: Invalid donation amount");
+      return;
+    }
+
+    // Create donation via service
+    boolean success = service.donate(
+        customer,
+        currentOrg.orgNumber(),
+        amount,
+        "Online"
+    );
+
+    if (success) {
+      System.out.println("Donation created: " + amount + " kr to " + currentOrg.name());
+    } else {
+      System.err.println("Failed to create donation");
+    }
+
+    // Clear donation session state
+    appState.setCurrentDonationAmount(null);
+
+    // Navigate to payment complete
+    nav.showPaymentCompletePage();
+  }
+}

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

@@ -0,0 +1,69 @@
+package edu.group5.app.control;
+
+import edu.group5.app.model.AppState;
+import edu.group5.app.model.user.User;
+import edu.group5.app.model.user.UserService;
+import edu.group5.app.view.loginpage.LoginPageView;
+import edu.group5.app.view.loginpage.SignInPageView;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+
+public class LoginController {
+  private final AppState appState;
+  private final NavigationController nav;
+  private final UserService userService;
+
+  public LoginController(AppState appState, NavigationController nav, UserService userService) {
+    this.appState = appState;
+    this.nav = nav;
+    this.userService = userService;
+  }
+
+  public void handleSignIn(SignInPageView view, String firstName, String lastName, String email, char[] passwordChars) {
+    if (firstName == null || firstName.trim().isEmpty() ||
+        lastName == null || lastName.trim().isEmpty() ||
+        email == null || email.trim().isEmpty() ||
+        passwordChars == null || passwordChars.length == 0) {
+      view.showError("All fields are required");
+      return;
+    }
+
+    String password = new String(passwordChars);
+    BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();
+    String hashedPassword = encoder.encode(password);
+
+    boolean success = userService.registerUser(
+        "Customer", firstName, lastName, email, hashedPassword);
+
+    if (success) {
+      User user = userService.getUserByEmail(email);
+
+      appState.setCurrentUser(user);
+      nav.showHomePage();
+    } else {
+      view.showError("Registration failed. Email may already be in use.");
+    }
+  }
+
+  public void handleLogin(LoginPageView view, String email, char[] passwordChars) {
+    if (email == null || email.trim().isEmpty() || passwordChars == null || passwordChars.length == 0) {
+      view.showError("Email and password are required");
+      return;
+    }
+
+    User user = userService.login(email, passwordChars);
+
+    if (user != null) {
+      appState.setCurrentUser(user);
+      nav.showHomePage();
+    } else {
+      view.showError("Invalid email or password");
+    }
+  }
+
+  public void handleLogout() {
+    appState.setCurrentUser(null);
+    appState.setCurrentOrganization(null);
+    appState.setCurrentDonationAmount(null);
+    nav.showLoginPage();
+  }
+}