feat : 내 피드

src/main/java/com/gamzabat/algohub/feature/group/studygroup/domain/GroupMember.java

@@ -14,8 +14,10 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Index;
 import jakarta.persistence.JoinColumn;
 import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 import jakarta.validation.constraints.NotNull;
 import lombok.Builder;
 import lombok.Getter;
@@ -25,6 +27,12 @@
 @Getter
 @NoArgsConstructor
 @DynamicUpdate
+@Table(
+	name = "group_member",
+	indexes = {
+		@Index(name = "idx_gm_user_visible_grp", columnList = "user_id,is_visible,study_group_id")
+	}
+)
 public class GroupMember {
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)

src/main/java/com/gamzabat/algohub/feature/problem/domain/Problem.java

@@ -13,8 +13,10 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Index;
 import jakarta.persistence.JoinColumn;
 import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -23,6 +25,12 @@
 @Getter
 @NoArgsConstructor
 @SQLDelete(sql = "UPDATE problem SET deleted_at = CURRENT_TIMESTAMP WHERE id = ?")
+@Table(
+	name = "problem",
+	indexes = {
+		@Index(name = "idx_problem_group", columnList = "study_group_id")
+	}
+)
 public class Problem {
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)

src/main/java/com/gamzabat/algohub/feature/solution/domain/Solution.java

@@ -13,8 +13,10 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Index;
 import jakarta.persistence.JoinColumn;
 import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -23,6 +25,12 @@
 @Getter
 @NoArgsConstructor
 @SQLDelete(sql = "UPDATE solution SET deleted_at = CURRENT_TIMESTAMP WHERE id = ?")
+@Table(
+	name = "solution",
+	indexes = {
+		@Index(name = "idx_solution_problem", columnList = "problem_id")
+	}
+)
 public class Solution {
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)

src/main/java/com/gamzabat/algohub/feature/solution/domain/SolutionComment.java

@@ -7,8 +7,10 @@
 
 import jakarta.persistence.Entity;
 import jakarta.persistence.FetchType;
+import jakarta.persistence.Index;
 import jakarta.persistence.JoinColumn;
 import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -17,6 +19,12 @@
 @Getter
 @NoArgsConstructor
 @DynamicUpdate
+@Table(
+	name = "solution_comment",
+	indexes = {
+		@Index(name = "idx_comment_solution_created", columnList = "solution_id,created_at")
+	}
+)
 public class SolutionComment extends Comment {
 
 	@ManyToOne(fetch = FetchType.LAZY)

src/main/java/com/gamzabat/algohub/feature/solution/repository/SolutionRepository.java

@@ -12,6 +12,7 @@
 import com.gamzabat.algohub.feature.solution.domain.Solution;
 import com.gamzabat.algohub.feature.solution.repository.querydsl.CustomSolutionRepository;
 import com.gamzabat.algohub.feature.user.domain.User;
+import com.gamzabat.algohub.feature.user.dto.GetSolutionCommentActivity;
 
 public interface SolutionRepository extends JpaRepository<Solution, Long>, CustomSolutionRepository {
 	@Query("SELECT s FROM Solution s "
@@ -67,4 +68,16 @@ Long countDistinctCorrectSolutionsByUserAndGroup(User user, StudyGroup group,
 		+ "AND s.user = :user "
 		+ "AND s.problem = :problem")
 	List<Solution> findAllByUserAndProblem(User user, Problem problem);
+
+	@Query("""
+	  select distinct new com.gamzabat.algohub.feature.user.dto.GetSolutionCommentActivity(s.id, g.id)
+	  from GroupMember gm
+	  join gm.studyGroup g
+	  join Problem p on p.studyGroup = g
+	  join Solution s on s.problem = p
+	  where gm.user = :user
+		and gm.isVisible = true
+		and exists (select 1 from SolutionComment c where c.solution = s)
+	""")
+	List<GetSolutionCommentActivity> findFeedSolutionsByUserOrdered(User user);
 }

src/main/java/com/gamzabat/algohub/feature/user/controller/UserController.java

@@ -22,6 +22,7 @@
 import com.gamzabat.algohub.feature.user.dto.CheckEmailRequest;
 import com.gamzabat.algohub.feature.user.dto.DeleteUserRequest;
 import com.gamzabat.algohub.feature.user.dto.EditUserPasswordRequest;
+import com.gamzabat.algohub.feature.user.dto.GetSolutionCommentActivityList;
 import com.gamzabat.algohub.feature.user.dto.RegisterBjNickNameRequest;
 import com.gamzabat.algohub.feature.user.dto.RegisterRequest;
 import com.gamzabat.algohub.feature.user.dto.ResetPasswordRequest;
@@ -151,6 +152,13 @@ public ResponseEntity<Void> deleteUser(@AuthedUser User user, @Valid @RequestBod
 		return ResponseEntity.ok().build();
 	}
 
+	@GetMapping(value = "/users/me/feed")
+	@Operation(summary = "내 피드 조회 API")
+	public ResponseEntity<GetSolutionCommentActivityList> getMyFeed(@AuthedUser User user) {
+		GetSolutionCommentActivityList response = userService.getSolutionCommentActivity(user);
+		return ResponseEntity.ok().body(response);
+	}
+
 	@DeleteMapping("/auth/sign-out")
 	@Operation(summary = "로그아웃 API")
 	public ResponseEntity<Void> logout(HttpServletRequest request) {
@@ -216,4 +224,5 @@ public ResponseEntity<Void> checkPasswordToken(@RequestParam String token) {
 		userService.validateResetPasswordToken(token);
 		return ResponseEntity.ok().build();
 	}
+
 }

src/main/java/com/gamzabat/algohub/feature/user/dto/GetSolutionCommentActivity.java

@@ -0,0 +1,4 @@
+package com.gamzabat.algohub.feature.user.dto;
+
+public record GetSolutionCommentActivity(Long solutionId, Long groupId) {
+}

src/main/java/com/gamzabat/algohub/feature/user/dto/GetSolutionCommentActivityList.java

@@ -0,0 +1,9 @@
+package com.gamzabat.algohub.feature.user.dto;
+
+import java.util.List;
+
+import lombok.Builder;
+
+@Builder
+public record GetSolutionCommentActivityList(List<GetSolutionCommentActivity> solutionCommentActivityList) {
+}

src/main/java/com/gamzabat/algohub/feature/user/service/UserService.java

@@ -6,6 +6,7 @@
 import java.time.Duration;
 import java.time.LocalDateTime;
 import java.util.Base64;
+import java.util.List;
 import java.util.regex.Pattern;
 
 import org.springframework.http.HttpEntity;
@@ -21,6 +22,7 @@
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.client.HttpClientErrorException;
 import org.springframework.web.client.HttpServerErrorException;
+import org.springframework.web.client.RestClient;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -35,10 +37,13 @@
 import com.gamzabat.algohub.exception.UserValidationException;
 import com.gamzabat.algohub.feature.group.studygroup.exception.CannotFoundUserException;
 import com.gamzabat.algohub.feature.image.service.ImageService;
+import com.gamzabat.algohub.feature.solution.repository.SolutionRepository;
 import com.gamzabat.algohub.feature.user.domain.ResetPassword;
 import com.gamzabat.algohub.feature.user.domain.User;
 import com.gamzabat.algohub.feature.user.dto.DeleteUserRequest;
 import com.gamzabat.algohub.feature.user.dto.EditUserPasswordRequest;
+import com.gamzabat.algohub.feature.user.dto.GetSolutionCommentActivity;
+import com.gamzabat.algohub.feature.user.dto.GetSolutionCommentActivityList;
 import com.gamzabat.algohub.feature.user.dto.RegisterBjNickNameRequest;
 import com.gamzabat.algohub.feature.user.dto.RegisterRequest;
 import com.gamzabat.algohub.feature.user.dto.ResetPasswordRequest;
@@ -76,6 +81,8 @@ public class UserService {
 	private final ResetPasswordRepository resetPasswordRepository;
 	private final EmailService emailService;
 	private final DiscordWebhookService webhookService;
+	private final SolutionRepository solutionRepository;
+	private final RestClient.Builder builder;
 
 	@Transactional
 	public void register(RegisterRequest request, MultipartFile profileImage, String token) {
@@ -337,6 +344,13 @@ public void resetPassword(ResetPasswordRequest request) {
 		log.info("success to reset password.");
 	}
 
+	@Transactional
+	public GetSolutionCommentActivityList getSolutionCommentActivity(User user) {
+		List<GetSolutionCommentActivity> solutionCommentActivityList = solutionRepository.findFeedSolutionsByUserOrdered(user);
+		GetSolutionCommentActivityList response = GetSolutionCommentActivityList.builder().solutionCommentActivityList(solutionCommentActivityList).build();
+		return response;
+	}
+
 	public void validateResetPasswordToken(String token) {
 		this.getValidatedResetPassword(token);
 	}