注册登录，用户等级，社交，动态，新手任务
Change-Id: I1d3183526517fb3c0dab665e0e7547eefa5c9d76
diff --git a/src/main/java/com/example/myproject/service/SeedCommentService.java b/src/main/java/com/example/myproject/service/SeedCommentService.java
new file mode 100644
index 0000000..530b164
--- /dev/null
+++ b/src/main/java/com/example/myproject/service/SeedCommentService.java
@@ -0,0 +1,158 @@
+package com.example.myproject.service;
+
+import com.example.myproject.entity.SeedComment;
+import com.example.myproject.entity.SeedCommentLikes;
+import com.example.myproject.repository.SeedCommentLikesRepository;
+import com.example.myproject.repository.SeedCommentRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.*;
+
+@Service
+public class SeedCommentService {
+
+ @Autowired
+ private SeedCommentRepository seedCommentRepository;
+
+ @Autowired
+ private SeedCommentLikesRepository seedCommentLikesRepository;
+
+ public String publishComment(int seedId, SeedComment seedComment) {
+ try {
+ // 如果是回复评论，检查父评论是否存在
+ if (seedComment.getComCommentId() != 0) {
+ // 查找父评论是否存在
+ boolean parentExists = seedCommentRepository.existsById(seedComment.getComCommentId());
+ if (!parentExists) {
+ return "{ \"status\": \"error\", \"message\": \"父评论不存在\" }";
+ }
+ }
+
+ // 设置评论的种子ID
+ seedComment.setSeedId(seedId);
+ seedComment.setCommentTime(new Date());
+ seedComment.setLikesCount(0); // 默认点赞数为0
+ seedComment.setReplyCount(0); // 默认回复数为0
+
+ // 如果没有父评论，com_comment_id 默认为0
+ if (seedComment.getComCommentId() == 0) {
+ seedComment.setComCommentId(0);
+ }
+
+ // 保存评论到数据库
+ seedCommentRepository.save(seedComment);
+
+ // 返回成功信息
+ return "{ \"status\": \"success\", \"message\": \"评论发布成功\" }";
+ } catch (Exception e) {
+ // 处理异常，返回失败信息
+ return "{ \"status\": \"error\", \"message\": \"评论发布失败\" }";
+ }
+ }
+
+ public Map<String, Object> getAllCommentsForSeed(int seedId) {
+ // 获取该种子的所有评论（顶级评论）
+ List<SeedComment> allComments = seedCommentRepository.findBySeedId(seedId);
+ List<Map<String, Object>> responseComments = new ArrayList<>();
+
+ for (SeedComment comment : allComments) {
+ Map<String, Object> commentData = new HashMap<>();
+ commentData.put("comment_id", comment.getCommentId());
+ commentData.put("user_id", comment.getUserId());
+ commentData.put("username", "User" + comment.getUserId()); // 通过用户ID查询用户名
+ commentData.put("content", comment.getContent());
+ commentData.put("parent_comment_id", comment.getComCommentId());
+
+ // 获取该评论的所有回复
+ List<Map<String, Object>> replies = getRepliesForComment(comment.getCommentId());
+ commentData.put("replies", replies);
+
+ responseComments.add(commentData);
+ }
+
+ // 返回最终结果
+ Map<String, Object> result = new LinkedHashMap<>();
+ result.put("status", "success");
+ result.put("comments", responseComments);
+
+ return result;
+ }
+
+ // 获取特定评论的所有回复
+ private List<Map<String, Object>> getRepliesForComment(long parentCommentId) {
+ List<SeedComment> replies = seedCommentRepository.findByComCommentId(parentCommentId);
+ List<Map<String, Object>> replyResponses = new ArrayList<>();
+
+ for (SeedComment reply : replies) {
+ Map<String, Object> replyData = new LinkedHashMap<>();
+ replyData.put("comment_id", reply.getCommentId());
+ replyData.put("user_id", reply.getUserId());
+ replyData.put("username", "User" + reply.getUserId()); // 通过用户ID查询用户名
+ replyData.put("content", reply.getContent());
+ replyData.put("parent_comment_id", reply.getComCommentId());
+ replyResponses.add(replyData);
+ }
+
+ return replyResponses;
+ }
+
+ // 点赞切换逻辑
+ public Map<String, Object> toggleLike(Long commentId, Long userId) {
+ // 查找是否有该评论
+ Optional<SeedComment> seedCommentOptional = seedCommentRepository.findById(commentId);
+ if (!seedCommentOptional.isPresent()) {
+ return Map.of("status", "error", "message", "评论不存在");
+ }
+
+ SeedComment seedComment = seedCommentOptional.get();
+
+ // 查找该用户是否已点赞
+ Optional<SeedCommentLikes> commentLikeOptional = seedCommentLikesRepository.findByCommentIdAndUserId(commentId, userId);
+
+ // 如果用户未点赞，添加新的点赞记录
+ if (commentLikeOptional.isEmpty()) {
+ SeedCommentLikes newLike = new SeedCommentLikes();
+ newLike.setCommentId(commentId);
+ newLike.setUserId(userId);
+ newLike.setIsLiked(true);
+
+ // 更新 SeedComment 表中的点赞数
+ seedComment.setLikesCount(seedComment.getLikesCount() + 1);
+ seedCommentRepository.save(seedComment);
+
+ // 保存点赞记录
+ seedCommentLikesRepository.save(newLike);
+
+ return Map.of("status", "success", "message", "操作成功", "liked", "true");
+ } else {
+ SeedCommentLikes commentLike = commentLikeOptional.get();
+
+ // 如果已经点赞，取消点赞
+ if (commentLike.getIsLiked()) {
+ commentLike.setIsLiked(false);
+
+ // 更新 SeedComment 表中的点赞数
+ seedComment.setLikesCount(seedComment.getLikesCount() - 1);
+ seedCommentRepository.save(seedComment);
+
+ // 更新点赞记录
+ seedCommentLikesRepository.save(commentLike);
+
+ return Map.of("status", "success", "message", "操作成功", "liked", "false");
+ } else {
+ // 如果未点赞，进行点赞
+ commentLike.setIsLiked(true);
+
+ // 更新 SeedComment 表中的点赞数
+ seedComment.setLikesCount(seedComment.getLikesCount() + 1);
+ seedCommentRepository.save(seedComment);
+
+ // 更新点赞记录
+ seedCommentLikesRepository.save(commentLike);
+
+ return Map.of("status", "success", "message", "操作成功", "liked", "true");
+ }
+ }
+ }
+}