Refactoring the guest to user convertion

src/main/java/com/zenfulcode/commercify/commercify/controller/AuthenticationController.java

@@ -10,6 +10,7 @@
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.ResponseEntity;
+import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 
 @Slf4j
@@ -42,6 +43,21 @@ public ResponseEntity<AuthResponse> login(@RequestBody LoginUserRequest loginReq
         }
     }
 
+    @PutMapping("/{id}/register")
+    @PreAuthorize("hasRole('ADMIN') or #id == authentication.principal.id")
+    public ResponseEntity<AuthResponse> registerGuest(@PathVariable Long id, @RequestBody RegisterUserRequest request) {
+        try {
+            authenticationService.convertGuestToUser(id, request);
+
+            UserDTO authenticatedUser = authenticationService.authenticate(new LoginUserRequest(request.email(), request.password()));
+            String jwtToken = jwtService.generateToken(authenticatedUser);
+            return ResponseEntity.ok(AuthResponse.UserAuthenticated(authenticatedUser, jwtToken, jwtService.getExpirationTime()));
+        } catch (Exception e) {
+            log.error("Error converting guest to a user: {}", e.getMessage());
+            return ResponseEntity.badRequest().body(AuthResponse.AuthenticationFailed(e.getMessage()));
+        }
+    }
+
     @GetMapping("/me")
     public ResponseEntity<UserDTO> getAuthenticatedUser(@RequestHeader("Authorization") String authHeader) {
         try {

src/main/java/com/zenfulcode/commercify/commercify/controller/UserManagementController.java

@@ -1,11 +1,11 @@
 package com.zenfulcode.commercify.commercify.controller;
 
 
-import com.zenfulcode.commercify.commercify.api.requests.RegisterUserRequest;
 import com.zenfulcode.commercify.commercify.dto.AddressDTO;
 import com.zenfulcode.commercify.commercify.dto.UserDTO;
 import com.zenfulcode.commercify.commercify.service.UserManagementService;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Sort;
@@ -16,6 +16,7 @@
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 
+@Slf4j
 @RestController
 @RequestMapping("/api/v1/users")
 @RequiredArgsConstructor
@@ -51,20 +52,6 @@ public ResponseEntity<UserDTO> updateUser(@PathVariable Long id, @RequestBody Us
         return ResponseEntity.ok(userManagementService.updateUser(id, userDTO));
     }
 
-    @PutMapping("/{id}/register")
-    @PreAuthorize("hasRole('ADMIN') or #id == authentication.principal.id")
-    public ResponseEntity<UserDTO> registerGuest(@PathVariable Long id, @RequestBody RegisterUserRequest request) {
-        System.out.println("Registering guest");
-        System.out.println(request);
-
-        try {
-            return ResponseEntity.ok(userManagementService.updateGuest(id, request));
-        } catch (Exception e) {
-            System.out.println("error: " + e.getMessage());
-            return ResponseEntity.badRequest().build();
-        }
-    }
-
     @DeleteMapping("/{id}")
     @PreAuthorize("hasRole('ADMIN')")
     public ResponseEntity<Void> deleteUser(@PathVariable Long id) {

src/main/java/com/zenfulcode/commercify/commercify/service/AuthenticationService.java

@@ -30,6 +30,7 @@ public class AuthenticationService {
     private final UserMapper mapper;
     private final JwtService jwtService;
     private final PasswordEncoder passwordEncoder;
+    private final UserManagementService usersService;
 
     @Transactional
     public UserDTO registerUser(RegisterUserRequest registerRequest) {
@@ -68,6 +69,20 @@ public UserDTO registerUser(RegisterUserRequest registerRequest) {
         return mapper.apply(savedUser);
     }
 
+    @Transactional
+    public void convertGuestToUser(Long id, RegisterUserRequest request) {
+        usersService.updateUser(id, request.toUserDTO());
+
+        UserEntity user = userRepository.findById(id)
+                .orElseThrow(() -> new RuntimeException("User not found"));
+
+        user.setPassword(passwordEncoder.encode(request.password()));
+        user.removeRole("GUEST");
+        user.addRole("USER");
+
+        userRepository.save(user);
+    }
+
     public UserDTO registerGuest() {
         String firstName = "Guest";
         String lastName = String.valueOf(new Date().toInstant().toEpochMilli());

src/main/java/com/zenfulcode/commercify/commercify/service/UserManagementService.java

@@ -1,7 +1,6 @@
 package com.zenfulcode.commercify.commercify.service;
 
 
-import com.zenfulcode.commercify.commercify.api.requests.RegisterUserRequest;
 import com.zenfulcode.commercify.commercify.dto.AddressDTO;
 import com.zenfulcode.commercify.commercify.dto.UserDTO;
 import com.zenfulcode.commercify.commercify.dto.mapper.AddressMapper;
@@ -13,7 +12,6 @@
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
-import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -27,7 +25,6 @@ public class UserManagementService {
     private final UserRepository userRepository;
     private final UserMapper mapper;
     private final AddressMapper addressMapper;
-    private final BCryptPasswordEncoder passwordEncoder;
 
     @Transactional(readOnly = true)
     public UserDTO getUserById(Long id) {
@@ -59,27 +56,6 @@ public UserDTO updateUser(Long id, UserDTO userDTO) throws RuntimeException {  /
         return mapper.apply(userRepository.save(user));
     }
 
-    @Transactional
-    public UserDTO updateGuest(Long id, RegisterUserRequest request) {
-        try {
-            updateUser(id, request.toUserDTO());
-
-            UserEntity user = userRepository.findById(id)
-                    .orElseThrow(() -> new RuntimeException("User not found"));
-
-            user.setPassword(passwordEncoder.encode(request.password()));
-            user.removeRole("GUEST");
-            user.addRole("USER");
-
-            UserEntity updatedUser = userRepository.save(user);
-            return mapper.apply(updatedUser);
-        } catch (RuntimeException e) {
-            // Log the error
-            log.error("Failed to update guest user: {}", e.getMessage(), e);
-            throw e;  // Re-throw the exception instead of swallowing it
-        }
-    }
-
     @Transactional
     public void deleteUser(Long id) {
         if (!userRepository.existsById(id)) {

src/main/java/com/zenfulcode/commercify/commercify/service/order/OrderService.java

@@ -261,8 +261,6 @@ private OrderDetailsDTO buildOrderDetailsDTO(OrderEntity order) {
 
         OrderShippingInfo shippingInfo = order.getOrderShippingInfo();
 
-        System.out.println("shippingInfo = " + shippingInfo);
-
         CustomerDetailsDTO customerDetails = CustomerDetailsDTO.builder()
                 .email(shippingInfo.getCustomerEmail())
                 .firstName(shippingInfo.getCustomerFirstName())