Feat/#42 학생회 게시글 좋아요 기능 구현

src/main/java/com/campus/campus/domain/councilpost/application/dto/response/GetLikedPostResponse.java

@@ -0,0 +1,23 @@
+package com.campus.campus.domain.councilpost.application.dto.response;
+
+import java.time.LocalDateTime;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record GetLikedPostResponse(
+	@Schema(description = "게시글 id", example = "1")
+	Long postId,
+
+	@Schema(description = "게시글 이름", example = "투썸 제휴")
+	String title,
+
+	@Schema(description = "게시글 장소", example = "투썸 플레이스")
+	String place,
+
+	@Schema(description = "시간(끝나는 시간 or 행사날짜)", example = "2026-01-10T18:00:00")
+	LocalDateTime dateTime,
+
+	@Schema(description = "썸네일 image url", example = "https://www.example.com.png")
+	String thumbnailImageUrl
+) {
+}

src/main/java/com/campus/campus/domain/councilpost/application/dto/response/GetPostForUserResponse.java

@@ -0,0 +1,36 @@
+package com.campus.campus.domain.councilpost.application.dto.response;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.util.List;
+
+import com.campus.campus.domain.councilpost.domain.entity.PostCategory;
+import com.campus.campus.domain.councilpost.domain.entity.ThumbnailIcon;
+import com.fasterxml.jackson.annotation.JsonInclude;
+
+import lombok.Builder;
+
+@Builder
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public record GetPostForUserResponse(
+
+	Long id,
+	Long writerId,
+	String writerName,
+
+	PostCategory category,
+	String title,
+	String content,
+	String place,
+	LocalDate startDate,
+	LocalDate endDate,
+	LocalDateTime startDateTime,
+
+	String thumbnailImageUrl,
+	ThumbnailIcon thumbnailIcon,
+
+	boolean isLiked,
+
+	List<String> images
+) {
+}

src/main/java/com/campus/campus/domain/councilpost/application/dto/response/PostResponse.java → src/main/java/com/campus/campus/domain/councilpost/application/dto/response/GetPostResponse.java

@@ -12,7 +12,7 @@
 
 @Builder
 @JsonInclude(JsonInclude.Include.NON_NULL)
-public record PostResponse(
+public record GetPostResponse(
 
 	Long id,
 	Long writerId,

src/main/java/com/campus/campus/domain/councilpost/application/dto/response/LikePostResponse.java

@@ -0,0 +1,15 @@
+package com.campus.campus.domain.councilpost.application.dto.response;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record LikePostResponse(
+	@Schema(description = "좋아요 누른 사용자 id", example = "1")
+	Long userId,
+
+	@Schema(description = "좋아요 누를 게시글의 id", example = "1")
+	Long postId,
+
+	@Schema(description = "좋아요 여부", example = "true")
+	boolean liked
+) {
+}

src/main/java/com/campus/campus/domain/councilpost/application/dto/response/PostListItemResponse.java

@@ -13,6 +13,6 @@ public record PostListItemResponse(
 	LocalDateTime endDateTime,
 	String thumbnailImageUrl,
 	ThumbnailIcon thumbnailIcon,
-	Boolean isWriter
+	boolean liked
 ) {
 }

src/main/java/com/campus/campus/domain/councilpost/application/mapper/StudentCouncilPostMapper.java

@@ -7,33 +7,35 @@
 import org.springframework.stereotype.Component;
 
 import com.campus.campus.domain.council.domain.entity.StudentCouncil;
+import com.campus.campus.domain.councilpost.application.dto.response.GetLikedPostResponse;
+import com.campus.campus.domain.councilpost.application.dto.response.GetPostResponse;
+import com.campus.campus.domain.councilpost.application.dto.response.LikePostResponse;
 import com.campus.campus.domain.councilpost.application.dto.response.GetPostListForCouncilResponse;
 import com.campus.campus.domain.councilpost.application.dto.response.GetUpcomingEventListForCouncilResponse;
 import com.campus.campus.domain.councilpost.application.dto.response.GetActivePartnershipListForUserResponse;
 import com.campus.campus.domain.councilpost.application.dto.response.PostListItemResponse;
 import com.campus.campus.domain.councilpost.application.dto.request.PostRequest;
-import com.campus.campus.domain.councilpost.application.dto.response.PostResponse;
+import com.campus.campus.domain.councilpost.application.dto.response.GetPostForUserResponse;
+import com.campus.campus.domain.councilpost.domain.entity.LikePost;
 import com.campus.campus.domain.councilpost.domain.entity.PostImage;
 import com.campus.campus.domain.councilpost.domain.entity.StudentCouncilPost;
+import com.campus.campus.domain.user.domain.entity.User;
 
 import lombok.RequiredArgsConstructor;
 
 @Component
 @RequiredArgsConstructor
 public class StudentCouncilPostMapper {
-
-	public PostListItemResponse toPostListItemResponse(StudentCouncilPost post, Long councilId) {
+	public PostListItemResponse toPostListItemResponse(StudentCouncilPost post, boolean isLiked) {
 		return new PostListItemResponse(
 			post.getId(),
 			post.getCategory(),
 			post.getTitle(),
 			post.getPlace(),
-			post.isEvent()
-				? post.getStartDateTime()
-				: post.getEndDateTime(),
+			post.isEvent() ? post.getStartDateTime() : post.getEndDateTime(),
 			post.getThumbnailImageUrl(),
 			post.getThumbnailIcon(),
-			post.isWrittenByCouncil(councilId)
+			isLiked
 		);
 	}
 
@@ -69,19 +71,45 @@ public GetActivePartnershipListForUserResponse toGetActivePartnershipListForUser
 		);
 	}
 
-	public PostResponse toPostResponse(StudentCouncilPost post, List<String> images, Long currentUserId) {
+	public GetPostResponse toGetPostResponse(StudentCouncilPost post, List<String> images, Long currentCouncilId) {
+		var writer = post.getWriter();
+		var builder = GetPostResponse.builder()
+			.id(post.getId())
+			.writerId(writer.getId())
+			.writerName(writer.getCouncilName())
+			.isWriter(post.isWrittenByCouncil(currentCouncilId))
+			.category(post.getCategory())
+			.title(post.getTitle())
+			.content(post.getContent())
+			.place(post.getPlace())
+			.thumbnailImageUrl(post.getThumbnailImageUrl())
+			.thumbnailIcon(post.getThumbnailIcon())
+			.images(images != null ? images : Collections.emptyList());
+
+		if (post.isEvent()) {
+			builder.startDateTime(post.getStartDateTime());
+		} else {
+			builder.startDate(post.getDisplayStartDate());
+			builder.endDate(post.getDisplayEndDate());
+		}
+
+		return builder.build();
+	}
+
+	public GetPostForUserResponse toGetPostForUserResponse(StudentCouncilPost post, List<String> images,
+		Long currentUserId, boolean isLiked) {
 		var writer = post.getWriter();
-		var builder = PostResponse.builder()
+		var builder = GetPostForUserResponse.builder()
 			.id(post.getId())
 			.writerId(writer.getId())
 			.writerName(writer.getCouncilName())
-			.isWriter(post.isWrittenByCouncil(currentUserId))
 			.category(post.getCategory())
 			.title(post.getTitle())
 			.content(post.getContent())
 			.place(post.getPlace())
 			.thumbnailImageUrl(post.getThumbnailImageUrl())
 			.thumbnailIcon(post.getThumbnailIcon())
+			.isLiked(isLiked)
 			.images(images != null ? images : Collections.emptyList());
 
 		if (post.isEvent()) {
@@ -94,9 +122,26 @@ public PostResponse toPostResponse(StudentCouncilPost post, List<String> images,
 		return builder.build();
 	}
 
+	public LikePostResponse toLikePostResponse(User user, StudentCouncilPost post, boolean liked) {
+		return new LikePostResponse(
+			user.getId(),
+			post.getId(),
+			liked
+		);
+	}
+
+	public GetLikedPostResponse toGetLikedPostResponse(StudentCouncilPost post) {
+		return new GetLikedPostResponse(
+			post.getId(),
+			post.getTitle(),
+			post.getPlace(),
+			post.isEvent() ? post.getStartDateTime() : post.getEndDateTime(),
+			post.getThumbnailImageUrl()
+		);
+	}
+
 	public StudentCouncilPost createStudentCouncilPost(StudentCouncil writer, PostRequest dto,
-		LocalDateTime startDateTime,
-		LocalDateTime endDateTime) {
+		LocalDateTime startDateTime, LocalDateTime endDateTime) {
 		return StudentCouncilPost.builder()
 			.writer(writer)
 			.category(dto.category())
@@ -116,4 +161,11 @@ public PostImage createPostImage(StudentCouncilPost post, String imageUrl) {
 			.imageUrl(imageUrl)
 			.build();
 	}
+
+	public LikePost createLikePost(User user, StudentCouncilPost post) {
+		return LikePost.builder()
+			.post(post)
+			.user(user)
+			.build();
+	}
 }