Implemented reputationPoints flow.

backend/src/main/java/com/group1/programminglanguagesforum/Config/ModelMapperConfig.java

@@ -28,13 +28,15 @@ protected void configure() {
                 skip(destination.getPassword());
                 skip(destination.getFollowers());
                 skip(destination.getFollowing());
+
             }
         });
         modelMapper.addMappings(new PropertyMap<User, SelfProfileResponseDto>() {
             @Override
             protected void configure() {
                 skip(destination.getQuestions());
                 skip(destination.getAnswers());
+                map(source.getReputationPoints(), destination.getReputationPoints());
             }
         });
         modelMapper.addMappings(new PropertyMap <UserProfileResponseDto,User>() {
@@ -50,6 +52,7 @@ protected void configure() {
             @Override
             protected void configure() {
                 skip(destination.getFollowedTags());
+                map(source.getReputationPoints(), destination.getReputationPoints());
 
             }
         });

backend/src/main/java/com/group1/programminglanguagesforum/Controllers/UserController.java

@@ -44,6 +44,7 @@ public ResponseEntity<GenericApiResponse<SelfProfileResponseDto>> getUser() {
                         selfProfileResponseDto.setFollowedTags(
                                 tagService.getFollowedTags(user.getId())
                         );
+                        selfProfileResponseDto.setReputationPoints(userService.calculateReputation(user));
                         selfProfileResponseDto.setQuestionCount((long) questions.size());
                         selfProfileResponseDto.setQuestions(
                                 questions);
@@ -81,6 +82,7 @@ public ResponseEntity<GenericApiResponse<UserProfileResponseDto>> getUserById(
                 if (user.isPresent()) {
                         UserProfileResponseDto userProfileResponseDto = modelMapper.map(user.get(),
                                         UserProfileResponseDto.class);
+                        userProfileResponseDto.setReputationPoints(userService.calculateReputation(user.get()));
                         userProfileResponseDto.setSelfFollowing(userService.selfFollowing(user.get()));
                         userProfileResponseDto.setFollowedTags(
                                 tagService.getFollowedTags(user.get().getId())

backend/src/main/java/com/group1/programminglanguagesforum/DTOs/Responses/SelfProfileResponseDto.java

@@ -21,7 +21,7 @@ public class SelfProfileResponseDto {
     private Long answerCount;
     private int followersCount;
     private int followingCount;
-    private int reputationPoints;
+    private Long reputationPoints;
     private Long questionCount;
     private ExperienceLevel experienceLevel;
     private List<QuestionSummaryDto> questions;

backend/src/main/java/com/group1/programminglanguagesforum/DTOs/Responses/UserProfileResponseDto.java

@@ -21,7 +21,7 @@ public class UserProfileResponseDto {
     private int followersCount;
     private int followingCount;
     private boolean selfFollowing;
-    private int reputationPoints;
+    private Long reputationPoints;
     private ExperienceLevel experienceLevel;
     @Builder.Default
     private List<SelfProfileResponseDto.FollowedTags> followedTags = new ArrayList<>();

backend/src/main/java/com/group1/programminglanguagesforum/Entities/Answer.java

@@ -51,6 +51,10 @@ public Long getDownvoteCount() {
         return votes.stream().filter(vote -> !vote.isUpvote()).count();
     }
 
+    public Long getVoteDifference() {
+        return Math.max(this.getUpvoteCount() - this.getDownvoteCount(), 0);
+    }
+
     public Integer getRating() {
         return (int)(this.getUpvoteCount() - this.getDownvoteCount());
     }

backend/src/main/java/com/group1/programminglanguagesforum/Entities/Question.java

@@ -60,5 +60,8 @@ public Long getUpvoteCount() {
     public Long getDownvoteCount() {
         return votes.stream().filter(vote -> !vote.isUpvote()).count();
     }
+    public Long getVoteDifference() {
+        return Math.max(getUpvoteCount() - getDownvoteCount(), 0);
+    }
 
 }

backend/src/main/java/com/group1/programminglanguagesforum/Repositories/QuestionRepository.java

@@ -2,6 +2,7 @@
 
 import com.group1.programminglanguagesforum.Entities.DifficultyLevel;
 import com.group1.programminglanguagesforum.Entities.Question;
+import com.group1.programminglanguagesforum.Entities.User;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
@@ -10,6 +11,7 @@
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
+import java.util.Optional;
 
 @Repository
 public interface QuestionRepository extends JpaRepository<Question, Long> {
@@ -28,6 +30,11 @@ Page<Question> searchQuestions(
             @Param("tagIds") List<Long> tagIds,
             @Param("difficulty") DifficultyLevel difficulty,
             Pageable pageable);
+
     @Query("SELECT q FROM Question q WHERE q.askedBy.id = :author")
     List<Question> findByAuthorId(@Param("author") Long authorId);
+
+    @Query("SELECT q.askedBy FROM Question q WHERE q.id = :id")
+    Optional<User> findQuestionOwner(@Param("id") Long questionId);
 }
+

backend/src/main/java/com/group1/programminglanguagesforum/Services/UserService.java

@@ -1,9 +1,13 @@
 package com.group1.programminglanguagesforum.Services;
 
 import com.group1.programminglanguagesforum.DTOs.Requests.UserProfileUpdateRequestDto;
+import com.group1.programminglanguagesforum.Entities.Answer;
+import com.group1.programminglanguagesforum.Entities.Question;
 import com.group1.programminglanguagesforum.Entities.User;
 import com.group1.programminglanguagesforum.Exceptions.UnauthorizedAccessException;
 import com.group1.programminglanguagesforum.Exceptions.UserNotFoundException;
+import com.group1.programminglanguagesforum.Repositories.AnswerRepository;
+import com.group1.programminglanguagesforum.Repositories.QuestionRepository;
 import com.group1.programminglanguagesforum.Repositories.UserRepository;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.Page;
@@ -20,11 +24,24 @@
 public class UserService {
     private final UserRepository userRepository;
     private final UserContextService userContextService;
+    private final AnswerRepository answerRepository;
+    private final QuestionRepository questionRepository;
 
     public Optional<User> getUserById(Long id) {
         return userRepository.findById(id);
     }
 
+    public Long calculateReputation(User user) {
+        List<Question> questions = questionRepository.findByAuthorId(user.getId());
+        long questionCount = questions.size();
+        Long questionVoteDifference = questions.stream().map(Question::getVoteDifference).reduce(0L, Long::sum);
+        List< Answer> answers= answerRepository.findByAnsweredBy(user.getId());
+        long answerCount =  answers.size();
+        Long answerVoteDifference = answers.stream().map(Answer::getVoteDifference).reduce(0L, Long::sum);
+        return (questionCount * 10 + answerCount * 15 + questionVoteDifference * 25 + answerVoteDifference * 30);
+
+    }
+
     public User updateUser(User user, UserProfileUpdateRequestDto userProfileUpdateRequestDto)
             throws UserNotFoundException {
         Optional<User> userOptional = userRepository.findById(user.getId());