Final code

AarhusLogicServer/src/main/java/dk/via/sep3/AarhusLogicServer.java

@@ -1,5 +1,10 @@
 package dk.via.sep3;
 
+/**
+ * Spring Boot application entry point for Aarhus Logic Server.
+ *
+ * @author Group 7
+ */
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.ComponentScan;

AarhusLogicServer/src/main/java/dk/via/sep3/application/services/books/BookServiceImpl.java

@@ -12,6 +12,11 @@
 import java.util.List;
 import java.util.Map;
 
+/**
+ * Implementation of book service that communicates with the book gRPC backend.
+ *
+ * @author Group 7
+ */
 @Service
 public class BookServiceImpl implements BookService
 {

AarhusLogicServer/src/main/java/dk/via/sep3/application/services/loans/LoanServiceImpl.java

@@ -15,6 +15,11 @@
 import java.sql.Date;
 import java.util.List;
 
+/**
+ * Implementation of loan-related business logic (create, extend, fetch active loans).
+ *
+ * @author Group 7
+ */
 @Service public class LoanServiceImpl implements LoanService
 {
     private static final Logger logger = LoggerFactory.getLogger(

AarhusLogicServer/src/main/java/dk/via/sep3/application/services/login/LoginServiceImpl.java

@@ -6,6 +6,11 @@
 import dk.via.sep3.security.PasswordService;
 import org.springframework.stereotype.Service;
 
+/**
+ * Implementation of login/authentication logic.
+ *
+ * @author Group 7
+ */
 @Service public class LoginServiceImpl implements LoginService
 {
   private final UserGrpcService userGrpcService;

AarhusLogicServer/src/main/java/dk/via/sep3/application/services/register/RegisterServiceImpl.java

@@ -8,6 +8,11 @@
 import dk.via.sep3.security.PasswordService;
 import org.springframework.stereotype.Service;
 
+/**
+ * Implementation of user registration logic (validation, password hashing, persistence).
+ *
+ * @author Group 7
+ */
 @Service public class RegisterServiceImpl implements RegisterService
 {
   private final UserGrpcService userGrpcService;

AarhusLogicServer/src/main/java/dk/via/sep3/application/services/reservation/ReservationServiceImpl.java

@@ -13,6 +13,11 @@
 import java.util.List;
 import java.time.LocalDate;
 
+/**
+ * Implementation of reservation business logic (create reservations, select book to reserve).
+ *
+ * @author Group 7
+ */
 @Service
 public class ReservationServiceImpl implements ReservationService {
     private final LoanGrpcService loanGrpcService;

AarhusLogicServer/src/main/java/dk/via/sep3/controller/AuthController.java

@@ -13,6 +13,11 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+/**
+ * Authentication controller for register/login endpoints.
+ *
+ * @author Group 7
+ */
 @RestController @RequestMapping("/auth") public class AuthController
 {
   private final UserMapper userMapper;

AarhusLogicServer/src/main/java/dk/via/sep3/controller/BooksController.java

@@ -15,6 +15,11 @@
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Controller for book endpoints.
+ *
+ * @author Group 7
+ */
 @RestController @RequestMapping("/books") public class BooksController
 {
     private final BookService books;

AarhusLogicServer/src/main/java/dk/via/sep3/controller/LoansController.java

@@ -16,6 +16,11 @@
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Controller for loan-related endpoints.
+ *
+ * @author Group 7
+ */
 @RestController @RequestMapping("/loans") public class LoansController
 {
   private static final Logger logger = LoggerFactory.getLogger(LoansController.class);

AarhusLogicServer/src/main/java/dk/via/sep3/controller/ReservationController.java

@@ -13,6 +13,11 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+/**
+ * Controller for reservation endpoints.
+ *
+ * @author Group 7
+ */
 @RestController @RequestMapping("/reservations") public class ReservationController
 {
   private final ReservationService reservationService;

AarhusLogicServer/src/test/java/dk/via/sep3/controller/AuthControllerTest.java

@@ -4,10 +4,13 @@
 import dk.via.sep3.mapper.userMapper.UserMapper;
 import dk.via.sep3.application.domain.User;
 import dk.via.sep3.application.services.register.RegisterService;
+import dk.via.sep3.application.services.login.LoginService;
 import dk.via.sep3.security.JwtUtil;
 import dk.via.sep3.DTOs.auth.RegisterResponseDTO;
 import dk.via.sep3.DTOs.registration.RegistrationDTO;
 import dk.via.sep3.DTOs.user.UserDTO;
+import dk.via.sep3.DTOs.login.LoginRequestDTO;
+import dk.via.sep3.DTOs.login.LoginResponseDTO;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -38,6 +41,9 @@ class AuthControllerTest {
     @Mock
     private JwtUtil jwtUtil;
 
+    @Mock
+    private LoginService loginService;
+
     @InjectMocks
     private AuthController authController;
 
@@ -217,5 +223,54 @@ void testRegister_CorrectMapping() {
         assertEquals(registerResponseDTO.getPhoneNumber(), response.getBody().getPhoneNumber());
         assertEquals(registerResponseDTO.getRole(), response.getBody().getRole());
     }
+
+    @Test
+    @DisplayName("Should login successfully and return a token")
+    void testLogin_Success() {
+        // Arrange
+        LoginRequestDTO loginRequest = new LoginRequestDTO();
+        loginRequest.setUsername("johndoe");
+        loginRequest.setPassword("SecurePass123");
+
+        when(userMapper.mapLoginRequestToDomain(loginRequest)).thenReturn(validDomainUser);
+        when(loginService.login(validDomainUser)).thenReturn(registeredUser);
+        when(jwtUtil.generateToken(registeredUser.getUsername(), registeredUser.getRole())).thenReturn("mock-token");
+
+        // Act
+        ResponseEntity<LoginResponseDTO> response = authController.login(loginRequest);
+
+        // Assert
+        assertNotNull(response);
+        assertEquals(HttpStatus.OK, response.getStatusCode());
+        assertNotNull(response.getBody());
+        assertEquals("mock-token", response.getBody().getToken());
+        assertEquals("johndoe", response.getBody().getUsername());
+
+        // Verify interactions
+        verify(userMapper, times(1)).mapLoginRequestToDomain(loginRequest);
+        verify(loginService, times(1)).login(validDomainUser);
+        verify(jwtUtil, times(1)).generateToken(registeredUser.getUsername(), registeredUser.getRole());
+    }
+
+    @Test
+    @DisplayName("Should throw exception when login credentials are invalid")
+    void testLogin_InvalidCredentials() {
+        // Arrange
+        LoginRequestDTO loginRequest = new LoginRequestDTO();
+        loginRequest.setUsername("johndoe");
+        loginRequest.setPassword("WrongPassword");
+
+        when(userMapper.mapLoginRequestToDomain(loginRequest)).thenReturn(validDomainUser);
+        when(loginService.login(validDomainUser)).thenThrow(new IllegalArgumentException("Invalid username or password"));
+
+        // Act & Assert
+        IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () -> authController.login(loginRequest));
+        assertEquals("Invalid username or password", exception.getMessage());
+
+        // Verify interactions
+        verify(userMapper, times(1)).mapLoginRequestToDomain(loginRequest);
+        verify(loginService, times(1)).login(validDomainUser);
+        verify(jwtUtil, never()).generateToken(any(), any());
+    }
 }
 

Client/BlazorApp/Program.cs

@@ -12,7 +12,7 @@
     .AddInteractiveServerComponents();
 
 // Read logic server base URL from configuration or default to localhost:8080
-var logicServerBase = builder.Configuration["LogicServerBaseUrl"] ?? "http://localhost:8081/";
+var logicServerBase = builder.Configuration["LogicServerBaseUrl"] ?? "http://localhost:8080/";
 
 // Unauthenticated client
 builder.Services.AddScoped(_ => new HttpClient

LibraryManagementSystem.sln

@@ -7,8 +7,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "PersistenceServer", "Persis
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Entities", "PersistenceServer\Server\Entities\Entities.csproj", "{234A19E6-3641-4350-90FE-4CA46BFFFDD3}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FileRepositories", "PersistenceServer\Server\FileRepositories\FileRepositories.csproj", "{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}"
-EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RepositoryContracts", "PersistenceServer\Server\RepositoryContracts\RepositoryContracts.csproj", "{8229A9EA-9BE8-4F9D-B7C0-A9AF2BA27978}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Server", "Server", "{CD932AF7-82F2-EB44-7494-511AF8C7F2CE}"
@@ -25,6 +23,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DTOs", "Shared\DTOs\DTOs.cs
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EFCDatabaseRepositories", "PersistenceServer\Server\EFCDatabaseRepositories\EFCDatabaseRepositories.csproj", "{9F1A647A-B7A8-4E9C-B6A7-01128AF67CDB}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Server.Tests", "PersistenceServer\Server\Server.Tests\Server.Tests.csproj", "{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -47,18 +47,6 @@ Global
 		{234A19E6-3641-4350-90FE-4CA46BFFFDD3}.Release|x64.Build.0 = Release|Any CPU
 		{234A19E6-3641-4350-90FE-4CA46BFFFDD3}.Release|x86.ActiveCfg = Release|Any CPU
 		{234A19E6-3641-4350-90FE-4CA46BFFFDD3}.Release|x86.Build.0 = Release|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Debug|x64.Build.0 = Debug|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Debug|x86.Build.0 = Debug|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Release|Any CPU.Build.0 = Release|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Release|x64.ActiveCfg = Release|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Release|x64.Build.0 = Release|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Release|x86.ActiveCfg = Release|Any CPU
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9}.Release|x86.Build.0 = Release|Any CPU
 		{8229A9EA-9BE8-4F9D-B7C0-A9AF2BA27978}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{8229A9EA-9BE8-4F9D-B7C0-A9AF2BA27978}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{8229A9EA-9BE8-4F9D-B7C0-A9AF2BA27978}.Debug|x64.ActiveCfg = Debug|Any CPU
@@ -119,18 +107,30 @@ Global
 		{9F1A647A-B7A8-4E9C-B6A7-01128AF67CDB}.Release|x64.Build.0 = Release|Any CPU
 		{9F1A647A-B7A8-4E9C-B6A7-01128AF67CDB}.Release|x86.ActiveCfg = Release|Any CPU
 		{9F1A647A-B7A8-4E9C-B6A7-01128AF67CDB}.Release|x86.Build.0 = Release|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Debug|x64.Build.0 = Debug|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Debug|x86.Build.0 = Debug|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Release|x64.ActiveCfg = Release|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Release|x64.Build.0 = Release|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Release|x86.ActiveCfg = Release|Any CPU
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{234A19E6-3641-4350-90FE-4CA46BFFFDD3} = {CD932AF7-82F2-EB44-7494-511AF8C7F2CE}
-		{3CEA80E6-3478-4801-9F5F-CF5D6B745EE9} = {CD932AF7-82F2-EB44-7494-511AF8C7F2CE}
 		{8229A9EA-9BE8-4F9D-B7C0-A9AF2BA27978} = {CD932AF7-82F2-EB44-7494-511AF8C7F2CE}
 		{CD932AF7-82F2-EB44-7494-511AF8C7F2CE} = {98BC804B-E865-18F8-7609-8B880F601F28}
 		{C884B17C-6118-4747-B44B-AEDB000E8935} = {CD932AF7-82F2-EB44-7494-511AF8C7F2CE}
 		{4508795B-F96A-48E4-8B6E-2629BF517A7F} = {2CB42F12-E813-91B3-7D11-3220E40BEF4A}
 		{99187A8B-A0F8-4CD5-8782-078AE8B24A9E} = {4F52FD11-658E-A102-6CD3-7D7C16FFA15B}
 		{9F1A647A-B7A8-4E9C-B6A7-01128AF67CDB} = {CD932AF7-82F2-EB44-7494-511AF8C7F2CE}
+		{2D693FCF-9C3C-427B-8B76-F8B68EED8ADA} = {CD932AF7-82F2-EB44-7494-511AF8C7F2CE}
 	EndGlobalSection
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