feat(interaction): 点赞与评论按集统计

fruitshorts-module-interaction/src/main/java/com/fruitshorts/interaction/service/CommentService.java

@@ -52,6 +52,7 @@ import java.util.Set;
 public class CommentService {
 
     private static final String DRAMA_ID_COLUMN = "drama_id";
+    private static final String EPISODE_ID_COLUMN = "episode_id";
     private static final String COMMENT_COUNT_COLUMN = "comment_count";
 
     public static final String STATUS_PENDING = "pending";
@@ -222,6 +223,35 @@ public class CommentService {
         return counts;
     }
 
+    /** 批量统计多集未删除评论数，按 episode_id 分组。 */
+    public Map<Long, Long> countByEpisodes(Collection<Long> episodeIds) {
+        if (episodeIds == null || episodeIds.isEmpty()) {
+            return Map.of();
+        }
+        List<Long> ids = episodeIds.stream().filter(Objects::nonNull).distinct().toList();
+        if (ids.isEmpty()) {
+            return Map.of();
+        }
+        QueryWrapper<ContentComment> wrapper = Wrappers.query();
+        wrapper.select(EPISODE_ID_COLUMN, "COUNT(*) AS " + COMMENT_COUNT_COLUMN)
+                .in(EPISODE_ID_COLUMN, ids)
+                .eq("deleted", 0)
+                .ne("status", STATUS_DELETED)
+                .groupBy(EPISODE_ID_COLUMN);
+        List<Map<String, Object>> rows = commentMapper.selectMaps(wrapper);
+        if (rows == null || rows.isEmpty()) {
+            return Map.of();
+        }
+        Map<Long, Long> counts = new HashMap<>();
+        for (Map<String, Object> row : rows) {
+            Long episodeId = asLong(row.get(EPISODE_ID_COLUMN));
+            if (episodeId != null) {
+                counts.put(episodeId, asLong(row.get(COMMENT_COUNT_COLUMN), 0L));
+            }
+        }
+        return counts;
+    }
+
     private Long asLong(Object value) {
         return value instanceof Number number ? number.longValue() : null;
     }

fruitshorts-module-interaction/src/main/java/com/fruitshorts/interaction/service/LikeService.java

@@ -5,7 +5,9 @@ package com.fruitshorts.interaction.service;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.fruitshorts.common.exception.ErrorCode;
 import com.fruitshorts.common.exception.ServiceException;
+import com.fruitshorts.content.dal.entity.DramaEpisode;
 import com.fruitshorts.content.service.DramaService;
+import com.fruitshorts.content.service.EpisodeService;
 import com.fruitshorts.interaction.dal.entity.ContentComment;
 import com.fruitshorts.interaction.dal.entity.ContentLike;
 import com.fruitshorts.interaction.dal.mapper.ContentCommentMapper;
@@ -29,17 +31,19 @@ import java.util.Locale;
 public class LikeService {
 
     public static final String TYPE_DRAMA = "DRAMA";
+    public static final String TYPE_EPISODE = "EPISODE";
     public static final String TYPE_COMMENT = "COMMENT";
 
     private final ContentLikeMapper likeMapper;
     private final ContentCommentMapper commentMapper;
     private final DramaService dramaService;
+    private final EpisodeService episodeService;
 
     @Transactional(rollbackFor = Exception.class)
     public LikeToggleRespVO toggle(Long userId, LikeToggleReqVO req) {
         String type = req.getTargetType().trim().toUpperCase(Locale.ROOT);
-        if (!TYPE_DRAMA.equals(type) && !TYPE_COMMENT.equals(type)) {
-            throw new ServiceException(ErrorCode.BAD_REQUEST, "只支持对短剧或评论点赞");
+        if (!TYPE_DRAMA.equals(type) && !TYPE_EPISODE.equals(type) && !TYPE_COMMENT.equals(type)) {
+            throw new ServiceException(ErrorCode.BAD_REQUEST, "只支持对短剧、剧集或评论点赞");
         }
         Long targetId = req.getTargetId();
         validateTarget(type, targetId);
@@ -74,6 +78,10 @@ public class LikeService {
             return dramaService.getExisting(targetId).getLikeCount() == null
                     ? 0L : dramaService.getExisting(targetId).getLikeCount();
         }
+        if (TYPE_EPISODE.equals(type)) {
+            return episodeService.getExisting(targetId).getLikeCount() == null
+                    ? 0L : episodeService.getExisting(targetId).getLikeCount();
+        }
         ContentComment comment = commentMapper.selectById(targetId);
         return comment == null || comment.getLikeCount() == null ? 0L : comment.getLikeCount();
     }
@@ -83,6 +91,10 @@ public class LikeService {
             dramaService.adjustLikeCount(targetId, delta);
             return;
         }
+        if (TYPE_EPISODE.equals(type)) {
+            episodeService.adjustLikeCount(targetId, delta);
+            return;
+        }
         commentMapper.update(null, Wrappers.<ContentComment>lambdaUpdate()
                 .eq(ContentComment::getId, targetId)
                 .setSql(delta > 0
@@ -95,6 +107,11 @@ public class LikeService {
             dramaService.getPublished(targetId);
             return;
         }
+        if (TYPE_EPISODE.equals(type)) {
+            DramaEpisode episode = episodeService.getPublished(targetId);
+            dramaService.getPublished(episode.getDramaId());
+            return;
+        }
         ContentComment comment = commentMapper.selectById(targetId);
         if (comment == null || CommentService.STATUS_PUBLISHED.equals(comment.getStatus()) == false) {
             throw new ServiceException(ErrorCode.DATA_NOT_FOUND, "评论不存在或未通过审核");

fruitshorts-module-interaction/src/main/java/com/fruitshorts/interaction/vo/LikeToggleReqVO.java

@@ -10,7 +10,7 @@ import lombok.Data;
 @Data
 public class LikeToggleReqVO {
 
-    /** DRAMA/COMMENT */
+    /** DRAMA/EPISODE/COMMENT */
     @NotBlank(message = "缺少 targetType")
     private String targetType;