feat: #128 게시글 좋아요 토글 API 구현

Team-Capple · Aug 19, 2024 · 1835529 · 1835529
1 parent ded08b9
commit 1835529
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Showing 7 changed files with 104 additions and 16 deletions.
diff --git a/src/main/java/com/server/capple/domain/board/controller/BoardController.java b/src/main/java/com/server/capple/domain/board/controller/BoardController.java
@@ -1,6 +1,7 @@
 package com.server.capple.domain.board.controller;
 
 import com.server.capple.config.security.AuthMember;
+import com.server.capple.domain.answer.dto.AnswerResponse;
 import com.server.capple.domain.board.dto.BoardRequest;
 import com.server.capple.domain.board.dto.BoardResponse;
 import com.server.capple.domain.board.entity.BoardType;
@@ -75,4 +76,11 @@ private BaseResponse<BoardResponse.BoardsSearchByKeyword> searchBoardsByKeyword(
         return BaseResponse.onSuccess(boardService.searchBoardsByKeyword(keyword));
     }
 
+    @Operation(summary = "게시글 좋아요/취소 API", description = " 게시글 좋아요/취소 API 입니다." +
+            "pathvariable 으로 boardId를 주세요.")
+    @PostMapping("/{boardId}/heart")
+    public BaseResponse<BoardResponse.BoardToggleHeart> toggleBoardHeart(@AuthMember Member member, @PathVariable(value = "boardId") Long boardId) {
+        return BaseResponse.onSuccess(boardService.toggleBoardHeart(member, boardId));
+    }
+
 }
diff --git a/src/main/java/com/server/capple/domain/board/dto/BoardResponse.java b/src/main/java/com/server/capple/domain/board/dto/BoardResponse.java
@@ -33,6 +33,7 @@ public static class BoardsGetByBoardType {
     @AllArgsConstructor
     @NoArgsConstructor
     public static class BoardsGetByBoardTypeBoardInfo {
+        private Long boardId;
         private Long writerId;
         private String content;
         private Integer heartCount;
@@ -61,10 +62,20 @@ public static class BoardsSearchByKeyword {
     @AllArgsConstructor
     @NoArgsConstructor
     public static class BoardsSearchByKeywordBoardInfo {
+        private Long boardId;
         private Long writerId;
         private String content;
         private Integer heartCount;
         private Integer commentCount;
         private LocalDateTime createAt;
     }
+
+    @Getter
+    @Builder
+    @AllArgsConstructor
+    @NoArgsConstructor
+    public static class BoardToggleHeart {
+        private Long boardId;
+        private Boolean isLiked;
+    }
 }
diff --git a/src/main/java/com/server/capple/domain/board/entity/Board.java b/src/main/java/com/server/capple/domain/board/entity/Board.java
@@ -26,13 +26,9 @@ public class Board extends BaseEntity {
     @Column(nullable = false)
     private BoardType boardType;
 
-
     @Column(nullable = false)
     private String content;
 
-    @Column(nullable = false)
-    private Integer heartCount;
-
     @Column(nullable = false)
     private Integer commentCount;
 }
diff --git a/src/main/java/com/server/capple/domain/board/mapper/BoardMapper.java b/src/main/java/com/server/capple/domain/board/mapper/BoardMapper.java
@@ -1,6 +1,5 @@
 package com.server.capple.domain.board.mapper;
 
-import com.server.capple.domain.board.dto.BoardRequest;
 import com.server.capple.domain.board.dto.BoardResponse;
 import com.server.capple.domain.board.entity.Board;
 import com.server.capple.domain.board.entity.BoardType;
@@ -23,7 +22,6 @@ public Board toBoard(
                 .writer(member)
                 .boardType(boardType)
                 .content(content)
-                .heartCount(heartCount)
                 .commentCount(commentCount)
                 .build();
     }
@@ -45,13 +43,15 @@ public BoardResponse.BoardsGetByBoardType toBoardsGetByBoardType(
     }
 
     public BoardResponse.BoardsGetByBoardTypeBoardInfo toBoardsGetByBoardTypeBoardInfo(
-            Board board
-    ) {
+            Board board,
+            Integer boardHeartsCount) {
         return BoardResponse.BoardsGetByBoardTypeBoardInfo.builder()
+                .boardId(board.getId())
                 .writerId(board.getWriter().getId())
                 .content(board.getContent())
-                .heartCount(board.getHeartCount())
-                .commentCount(board.getCommentCount())
+                .heartCount(boardHeartsCount)
+                // TODO : 댓글 작성 API 나오면 추후 구현
+                .commentCount(0)
                 .createAt(board.getCreatedAt())
                 .build();
     }
@@ -63,12 +63,14 @@ public BoardResponse.BoardDelete toBoardDelete(Board board) {
     }
 
     public BoardResponse.BoardsSearchByKeywordBoardInfo toBoardsSearchByKeywordBoardInfo(
-            Board board
+            Board board,
+            Integer heartCount
     ) {
         return BoardResponse.BoardsSearchByKeywordBoardInfo.builder()
+                .boardId(board.getId())
                 .writerId(board.getWriter().getId())
                 .content(board.getContent())
-                .heartCount(board.getHeartCount())
+                .heartCount(heartCount)
                 .commentCount(board.getCommentCount())
                 .createAt(board.getCreatedAt())
                 .build();

diff --git a/src/main/java/com/server/capple/domain/board/repository/BoardHeartRedisRepository.java b/src/main/java/com/server/capple/domain/board/repository/BoardHeartRedisRepository.java
@@ -0,0 +1,60 @@
+package com.server.capple.domain.board.repository;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.core.SetOperations;
+import org.springframework.stereotype.Repository;
+
+import java.io.Serializable;
+import java.util.HashSet;
+import java.util.Set;
+
+import static java.lang.Boolean.FALSE;
+import static java.lang.Boolean.TRUE;
+
+@Repository
+@RequiredArgsConstructor
+public class BoardHeartRedisRepository implements Serializable {
+    public static final String BOARD_HEART_KEY_PREFIX = "boardHeart-";
+    public static final String MEMBER_KEY_PREFIX = "member-";
+
+    private final RedisTemplate<String, String> redisTemplate;
+
+    // 게시판 좋아요 토글
+    public Boolean toggleBoardHeart(Long memberId, Long boardId) {
+        String key = BOARD_HEART_KEY_PREFIX + boardId.toString();
+        String member = MEMBER_KEY_PREFIX + memberId.toString();
+        SetOperations<String, String> setOperations = redisTemplate.opsForSet();
+
+        //해당 key에 member가 존재하지 않으면 추가, 존재하면 삭제
+        if (FALSE.equals(setOperations.isMember(key, member))) {
+            setOperations.add(key, member);
+            return TRUE;
+        } else {
+            setOperations.remove(key, member);
+            return FALSE;
+        }
+    }
+
+    // 게시판 좋아요 수 조회
+    public Integer getBoardHeartsCount(Long boardId) {
+        String key = BOARD_HEART_KEY_PREFIX + boardId.toString();
+        Set<String> members = redisTemplate.opsForSet().members(key);
+        return members != null ? members.size() : 0;
+    }
+
+    // 좋아요 누른 게시판 조회
+    public Set<Long> getMemberHeartsBoard(Long memberId) {
+        String member = MEMBER_KEY_PREFIX + memberId.toString();
+        Set<String> keys = redisTemplate.keys(BOARD_HEART_KEY_PREFIX + "*"); // 모든 키 조회
+        Set<Long> boardIds = new HashSet<>();
+
+        for (String key : keys) {
+            if (redisTemplate.opsForSet().isMember(key, member)) {
+                String boardId = key.substring(BOARD_HEART_KEY_PREFIX.length());
+                boardIds.add(Long.parseLong(boardId));
+            }
+        }
+        return boardIds;
+    }
+}
diff --git a/src/main/java/com/server/capple/domain/board/service/BoardService.java b/src/main/java/com/server/capple/domain/board/service/BoardService.java
@@ -13,4 +13,6 @@ public interface BoardService {
     BoardResponse.BoardDelete deleteBoard(Member member, Long boardId);
 
     BoardResponse.BoardsSearchByKeyword searchBoardsByKeyword(String keyword);
+
+    BoardResponse.BoardToggleHeart toggleBoardHeart(Member member, Long boardId);
 }
diff --git a/src/main/java/com/server/capple/domain/board/service/BoardServiceImpl.java b/src/main/java/com/server/capple/domain/board/service/BoardServiceImpl.java
@@ -4,25 +4,25 @@
 import com.server.capple.domain.board.entity.Board;
 import com.server.capple.domain.board.entity.BoardType;
 import com.server.capple.domain.board.mapper.BoardMapper;
+import com.server.capple.domain.board.repository.BoardHeartRedisRepository;
 import com.server.capple.domain.board.repository.BoardRepository;
 import com.server.capple.domain.member.entity.Member;
 import com.server.capple.global.exception.RestApiException;
 import com.server.capple.global.exception.errorCode.BoardErrorCode;
 import lombok.RequiredArgsConstructor;
-import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Optional;
 
 @Service
 @RequiredArgsConstructor
 @Transactional
 public class BoardServiceImpl implements BoardService {
 
     private final BoardRepository boardRepository;
+    private final BoardHeartRedisRepository boardHeartRedisRepository;
     private final BoardMapper boardMapper;
 
     @Override
@@ -49,7 +49,7 @@ public BoardResponse.BoardsGetByBoardType getBoardsByBoardType(BoardType boardTy
             throw new RestApiException(BoardErrorCode.BOARD_BAD_REQUEST);
         }
         return boardMapper.toBoardsGetByBoardType(boards.stream()
-                .map(boardMapper::toBoardsGetByBoardTypeBoardInfo)
+                .map(board -> boardMapper.toBoardsGetByBoardTypeBoardInfo(board, boardHeartRedisRepository.getBoardHeartsCount(board.getId())))
                 .toList()
         );
     }
@@ -71,9 +71,18 @@ public BoardResponse.BoardDelete deleteBoard(Member member, Long boardId) {
     public BoardResponse.BoardsSearchByKeyword searchBoardsByKeyword(String keyword) {
         List<Board> boards = boardRepository.findBoardsByKeyword(keyword);
         return boardMapper.toBoardsSearchByKeyword(boards.stream()
-                .map(boardMapper::toBoardsSearchByKeywordBoardInfo)
+                .map(board -> boardMapper.toBoardsSearchByKeywordBoardInfo(board, boardHeartRedisRepository.getBoardHeartsCount(board.getId())))
                 .toList());
     }
 
+    @Override
+    public BoardResponse.BoardToggleHeart toggleBoardHeart(Member member, Long boardId) {
+        Board board = boardRepository.findById(boardId)
+                .orElseThrow(() -> new RestApiException(BoardErrorCode.BOARD_NOT_FOUND));
+
+        Boolean isLiked = boardHeartRedisRepository.toggleBoardHeart(member.getId(), board.getId());
+        return new BoardResponse.BoardToggleHeart(boardId, isLiked);
+    }
+
 
 }