Add missing swagger documentation from controllers

src/main/java/edu/ntnu/idatt2105/quizapp/controller/AuthenticationController.java

@@ -51,7 +51,8 @@ public class AuthenticationController {
       @ApiResponse(responseCode = "500", description = "Unknown internal server error.")
   })
   @PostMapping("/register")
-  public ResponseEntity<AuthenticationDto> registerUser(@RequestBody RegistrationDto registrationDto) {
+  public ResponseEntity<AuthenticationDto> registerUser(
+      @RequestBody RegistrationDto registrationDto) {
     log.info("Attempting to register user: {}", registrationDto.getUsername());
     AuthenticationDto authenticationDto = authenticationService.registerUser(registrationDto);
     log.info("User {} registered successfully.", registrationDto.getUsername());
@@ -71,6 +72,7 @@ public ResponseEntity<AuthenticationDto> registerUser(@RequestBody RegistrationD
               schema = @Schema(implementation = AuthenticationDto.class))}
       ),
       @ApiResponse(responseCode = "401", description = "User is unauthorized to log in"),
+      @ApiResponse(responseCode = "500", description = "Internal server error", content = @Content)
   })
   @PostMapping("/login")
   public ResponseEntity<AuthenticationDto> loginUser(@RequestBody LoginRequestDto loginRequestDto) {

src/main/java/edu/ntnu/idatt2105/quizapp/controller/FeedbackController.java

@@ -3,7 +3,9 @@
 import edu.ntnu.idatt2105.quizapp.dto.FeedbackDto;
 import edu.ntnu.idatt2105.quizapp.services.FeedbackService;
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
@@ -33,8 +35,12 @@ public class FeedbackController {
    * @param feedbackDto The feedback DTO containing feedback information.
    * @return ResponseEntity indicating the status of the feedback submission.
    */
+
   @Operation(summary = "Submit user feedbacks")
-  @ApiResponse(responseCode = "200", description = "Feedback successfully submitted.")
+  @ApiResponses(value = {
+      @ApiResponse(responseCode = "200", description = "Feedback successfully submitted."),
+      @ApiResponse(responseCode = "500", description = "Internal server error", content = @Content)
+  })
   @PostMapping(path = "/submit")
   public ResponseEntity<Void> submitFeedback(@RequestBody FeedbackDto feedbackDto) {
     log.info("Feedback received from {}.", feedbackDto.getEmail());

src/main/java/edu/ntnu/idatt2105/quizapp/controller/UserController.java

@@ -53,7 +53,11 @@ public class UserController {
    * @return ResponseEntity indicating the status of the edit request.
    */
   @Operation(summary = "Change user information")
-  @ApiResponse(responseCode = "200", description = "User information successfully updated.")
+  @ApiResponses(value = {
+      @ApiResponse(responseCode = "200", description = "User information successfully updated."),
+      @ApiResponse(responseCode = "500", description = "Unknown internal server error.", content
+          = @Content)
+  })
   @PutMapping()
   public ResponseEntity<Void> editUserInformation(@RequestBody EditUserDto editUserDto,
                                                   Principal principal) {

src/main/java/edu/ntnu/idatt2105/quizapp/controller/quiz/CategoryController.java

@@ -3,6 +3,8 @@
 import edu.ntnu.idatt2105.quizapp.model.quiz.Category;
 import edu.ntnu.idatt2105.quizapp.services.quiz.CategoryService;
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.responses.ApiResponses;
 import java.util.List;
@@ -35,16 +37,18 @@ public class CategoryController {
    */
   @Operation(summary = "Get all possible categories")
   @ApiResponses(value = {
-      @ApiResponse(responseCode = "200", description = "Successfully retrieved all categories"),
-      @ApiResponse(responseCode = "500", description = "Internal server error")
+      @ApiResponse(responseCode = "200", description = "Successfully retrieved all categories",
+          content = {
+              @Content(mediaType = "application/json",
+                  schema = @Schema(implementation = List.class))}),
+      @ApiResponse(responseCode = "500", description = "Internal server error", content = @Content)
   })
   @GetMapping("/categories")
   public ResponseEntity<List<String>> getAllCategories(
       @RequestParam(defaultValue = "0") int page,
       @RequestParam(defaultValue = "10") int size
   ) {
 
-    log.info("page: {}, size: {}", page, size);
     List<String> receivedCategories =
         categoryService.getAllPossibleCategories(Pageable.ofSize(size).withPage(page))
             .stream()

src/main/java/edu/ntnu/idatt2105/quizapp/controller/quiz/QuizAttemptController.java

@@ -3,6 +3,7 @@
 import edu.ntnu.idatt2105.quizapp.dto.quiz.QuizAttemptDto;
 import edu.ntnu.idatt2105.quizapp.services.quiz.QuizAttemptService;
 import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import java.security.Principal;
 import lombok.RequiredArgsConstructor;
@@ -37,6 +38,7 @@ public class QuizAttemptController {
    */
   @Operation(summary = "Submit quiz attempt")
   @ApiResponse(responseCode = "200", description = "Attempts successfully submitted.")
+  @ApiResponse(responseCode = "500", description = "Internal server error", content = @Content)
   @PostMapping()
   public ResponseEntity<Void> submitAttempt(@RequestBody QuizAttemptDto quizAttemptDto,
                                             Principal principal) {