Fixed couple of endpoints, implemented more of the frontend

src/main/java/com/faf223/expensetrackerfaf/controller/UserController.java

@@ -8,6 +8,9 @@ import com.faf223.expensetrackerfaf.service.UserService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.annotation.*;
 
@@ -33,11 +36,16 @@ public class UserController {
         }
     }
 
-    @GetMapping("/{userUuid}")
-    public ResponseEntity<UserDTO> getUser(@PathVariable String userUuid) {
-        User user = userService.getUserById(userUuid);
-        if (user != null) return ResponseEntity.ok(userMapper.toDto(user));
-        else return ResponseEntity.notFound().build();
+    @GetMapping("/getUserData")
+    public ResponseEntity<UserDTO> getUser() {
+        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+
+        if (authentication != null && authentication.getPrincipal() instanceof UserDetails userDetails) {
+            User user = userService.getUserByEmail(userDetails.getUsername());
+            if (user != null) return ResponseEntity.ok(userMapper.toDto(user));
+            else return ResponseEntity.notFound().build();
+        }
+        return ResponseEntity.notFound().build();
     }
 
     @GetMapping()