feature: 下一回复完成

server/src/main/java/com/pica/cloud/online/exam/analysis/server/service/impl/CHCAnalysisServiceImpl.java

@@ -218,8 +218,27 @@ public class CHCAnalysisServiceImpl implements CHCAnalysisService {
 
     @Override
     public Reply getNextReplyById(Integer replyId) {
+        Reply reply = replyMapper.selectByPrimaryKey(replyId);
+
+        /**
+         * 1. 找到该题目下的回复列表,默认是按照点赞排序的
+         */
+        List<Reply> replyList = replyMapper.selectReplyListByAnalysisRoundExamTitleId(reply.getAnalysisRoundExamTitleId());
+
+        /**
+         * 2. 找到当前回复的所在位置，返回下一个回复
+         */
+        int replyCount = replyList.size();
+        int idx = 0;
+        for (int i = 0; i< replyCount;  ++ i) {
+            if (replyList.get(i).getId().intValue() == reply.getId().intValue()) {
+                idx = i;
+                break;
+            }
+        }
+        idx = ((idx + 1) % replyCount);
 
-        return null;
+        return replyList.get(idx);
     }
 
     @Override
@@ -329,7 +348,7 @@ public class CHCAnalysisServiceImpl implements CHCAnalysisService {
 
         Integer idx = 0;
         for (int i = 0; i < examTitleCount; ++ i) {
-            if (roundExamTitleList.get(i).getId() == analysisRoundExamTitleId) {
+            if (roundExamTitleList.get(i).getId().intValue() == analysisRoundExamTitleId.intValue()) {
                 idx = i;
                 break;
             }