Update&feat[]: Connect backend to frontend by adding login, registrat…

…ion, donation flow, and user page functionality, however per now it only stores data in runtime

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

@@ -1,18 +1,62 @@
 package edu.group5.app;
 
 import edu.group5.app.control.MainController;
+import edu.group5.app.control.wrapper.DbWrapper;
+import edu.group5.app.control.wrapper.OrgApiWrapper;
+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.UserRepository;
+import edu.group5.app.model.user.UserService;
 import javafx.application.Application;
 import javafx.scene.Scene;
 import javafx.scene.image.Image;
 import javafx.stage.Stage;
 
+import java.util.List;
+
 /**
- * Hello world!
+ * Main entry point for the Help-Me-Help charity donation application.
+ * Handles database connection, data loading, and application setup.
  */
 public class App extends Application {
   @Override
   public void start(Stage stage) {
-    MainController controller = new MainController();
+    DbWrapper dbWrapper = new DbWrapper(true);
+    OrgApiWrapper orgApiWrapper = new OrgApiWrapper("https://app.innsamlingskontrollen.no/api/public/v1/all");
+
+    if (!dbWrapper.connect()) {
+      System.err.println("Failed to connect to database");
+      return;
+    }
+
+    // Load data from database
+    List<Object[]> userData = dbWrapper.importUsers();
+    List<Object[]> donationData = dbWrapper.fetchAllDonations();
+    dbWrapper.disconnect();
+
+    // Load organizations from API
+    Object[] organizationData = new Object[0];
+    try {
+      if (orgApiWrapper.importData()) {
+        organizationData = orgApiWrapper.getData();
+      }
+    } catch (InterruptedException e) {
+      System.err.println("Failed to load organization data: " + e.getMessage());
+    }
+
+    // Create repositories with fetched data
+    UserRepository userRepository = new UserRepository(userData);
+    DonationRepository donationRepository = new DonationRepository(donationData);
+    OrganizationRepository organizationRepository = new OrganizationRepository(organizationData);
+
+    // Create services (backend wiring)
+    UserService userService = new UserService(userRepository);
+    DonationService donationService = new DonationService(donationRepository, organizationRepository);
+    OrganizationService organizationService = new OrganizationService(organizationRepository);
+
+    MainController controller = new MainController(userService, donationService, organizationService);
 
     Scene scene = controller.getMainView().getScene();
     controller.showLoginPage();
@@ -22,4 +66,8 @@ public void start(Stage stage) {
     stage.setScene(scene);
     stage.show();
   }
+
+  public static void main(String[] args) {
+    launch(args);
+  }
 }

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

@@ -1,14 +1,16 @@
 package edu.group5.app.control;
 
+import edu.group5.app.model.organization.Organization;
+
 public class BrowseCardController {
   private final MainController controller;
 
   public BrowseCardController(MainController mainController) {
     this.controller = mainController;
   }
 
-  public void handleCardClick() {
-    System.out.println("Browse Card Clicked");
+  public void handleCardClick(Organization organization) {
+    controller.setCurrentOrganization(organization);
     controller.showOrganizationPage();
   }
 }

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

@@ -1,11 +1,42 @@
 package edu.group5.app.control;
 
+import edu.group5.app.model.user.User;
+import edu.group5.app.model.user.UserService;
+import edu.group5.app.view.loginpage.LoginPageView;
+
 public class LoginPageController {
   private final MainController controller;
+  private final UserService userService;
+  private LoginPageView view;
 
-  public LoginPageController(MainController controller) {
+  public LoginPageController(MainController controller, UserService userService) {
     this.controller = controller;
+    this.userService = userService;
+  }
+
+  public void setView(LoginPageView view) {
+    this.view = view;
   }
+
+  public void handleLoginBtn() {
+    String email = view.getEmail();
+    char[] passwordChars = view.getPassword();
+
+    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) {
+      controller.setCurrentUser(user);
+      controller.showHomePage();
+    } else {
+      view.showError("Invalid email or password");
+    }
+  }
+
   public void handleRegisterBtn() {
     System.out.println("Sign in button pressed");
     controller.showSignInPage();

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

@@ -1,10 +1,16 @@
 package edu.group5.app.control;
 
 import edu.group5.app.control.donationpage.DonationPageController;
+import edu.group5.app.model.donation.DonationService;
+import edu.group5.app.model.organization.Organization;
+import edu.group5.app.model.organization.OrganizationService;
 import edu.group5.app.model.user.User;
+import edu.group5.app.model.user.UserService;
 import edu.group5.app.view.MainView;
 import edu.group5.app.view.donationpage.DonationPageView;
 
+import java.math.BigDecimal;
+
 public class MainController {
   private final MainView view;
   private final HeaderController headerController;
@@ -13,10 +19,20 @@ public class MainController {
   private final BrowseCardController browseCardController;
   private final OrganizationPageController organizationPageController;
   private final DonationPageController donationPageController;
+  private final UserService userService;
+  private final DonationService donationService;
+  private final OrganizationService organizationService;
   private User currentUser;
+  private Organization currentOrganization;
+  private BigDecimal currentDonationAmount;
+
+  public MainController(UserService userService, DonationService donationService,
+                        OrganizationService organizationService) {
+    this.userService = userService;
+    this.donationService = donationService;
+    this.organizationService = organizationService;
 
-  public MainController() {
-    this.view = new MainView(this);
+    this.view = new MainView(this, userService);
     this.headerController = new HeaderController(this);
     this.homePageController = new HomePageController(this);
     this.browsePageController = new BrowsePageController(this);
@@ -25,6 +41,18 @@ public MainController() {
     this.donationPageController = new DonationPageController(this);
   }
 
+  public UserService getUserService() {
+    return userService;
+  }
+
+  public DonationService getDonationService() {
+    return donationService;
+  }
+
+  public OrganizationService getOrganizationService() {
+    return organizationService;
+  }
+
   public void setCurrentUser(User user) {
     this.currentUser = user;
   }
@@ -33,8 +61,26 @@ public User getCurrentUser() {
     return this.currentUser;
   }
 
+  public void setCurrentOrganization(Organization organization) {
+    this.currentOrganization = organization;
+  }
+
+  public Organization getCurrentOrganization() {
+    return this.currentOrganization;
+  }
+
+  public void setCurrentDonationAmount(BigDecimal amount) {
+    this.currentDonationAmount = amount;
+  }
+
+  public BigDecimal getCurrentDonationAmount() {
+    return this.currentDonationAmount;
+  }
+
   public void logout() {
     currentUser = null;
+    currentOrganization = null;
+    currentDonationAmount = null;
     showLoginPage();
   }
 

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

@@ -1,15 +1,56 @@
 package edu.group5.app.control;
+import edu.group5.app.model.user.UserService;
+import edu.group5.app.view.loginpage.SignInPageView;
+
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+
+import edu.group5.app.model.user.User;
 
 public class SignInPageController {
   private final MainController controller;
+  private final UserService userService;
+  private SignInPageView view;
 
-  public SignInPageController(MainController controller) {
+  public SignInPageController(MainController controller, UserService userService) {
     this.controller = controller;
+    this.userService = userService;
+  }
+
+  public void setView(SignInPageView view) {
+  this.view = view;
   }
+
   public void handleSignInBtn() {
-    System.out.println("Sign in button pressed");
-    controller.showHomePage();
+    String firstName = view.getFirstName();
+    String lastName = view.getLastName();
+    String email = view.getEmail();
+    char[] passwordChars = view.getPassword();
+
+    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);
+
+      controller.setCurrentUser(user);
+      controller.showHomePage();
+    } else {
+      view.showError("Registration failed. Email may already be in use.");
+    }
   }
+
   public void handleLoginBtn() {
     System.out.println("Back to login button pressed");
     controller.showLoginPage();

src/main/java/edu/group5/app/control/donationpage/DonationPageController.java

@@ -1,6 +1,11 @@
 package edu.group5.app.control.donationpage;
 
 import edu.group5.app.control.MainController;
+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;
 
 public class DonationPageController {
   private final MainController controller;
@@ -9,7 +14,46 @@ public DonationPageController(MainController controller) {
     this.controller = controller;
   }
   public void handleDonationBtn() {
-    System.out.println("Donating");
+    // Get session data from MainController
+    User currentUser = controller.getCurrentUser();
+    Organization currentOrg = controller.getCurrentOrganization();
+    BigDecimal amount = controller.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 = controller.getDonationService().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
+    controller.setCurrentDonationAmount(null);
+
+    // Navigate to payment complete
     controller.showPaymentCompletePage();
   }
 

src/main/java/edu/group5/app/control/wrapper/DbWrapper.java

@@ -141,7 +141,7 @@ public int exportUsers(List<Object[]> data) {
     return rowsAffected;
   }
 
-  private List<Object[]> importDonations() {
+  public List<Object[]> fetchAllDonations() {
     return this.importDonations(0, true);
   }
 
@@ -182,8 +182,8 @@ private List<Object[]> importDonations(int user_id, boolean all) {
     return this.donations;
   }
 
-  public int exportDonations(List<Object[]> data) {  
-    this.importDonations();
+  public int exportDonations(List<Object[]> data) {
+    this.fetchAllDonations();
 
     if (data == null) {
       throw new IllegalArgumentException("data can't be null");