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feat: add comment sorting

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Tim
2025-07-29 21:33:05 +08:00
parent 24a46384b0
commit 143ceebc00
7 changed files with 69 additions and 15 deletions
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6
src/main/java/com/openisle/controller/CommentController.java
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@@ -4,6 +4,7 @@ import com.openisle.model.Comment;
import com.openisle.service.CommentService;
import com.openisle.service.CaptchaService;
import com.openisle.service.LevelService;
import com.openisle.model.CommentSort;
import lombok.Data;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
@@ -56,8 +57,9 @@ public class CommentController {
}
@GetMapping("/posts/{postId}/comments")
public List<CommentDto> listComments(@PathVariable Long postId) {
return commentService.getCommentsForPost(postId).stream()
public List<CommentDto> listComments(@PathVariable Long postId,
@RequestParam(value = "sort", required = false, defaultValue = "OLDEST") CommentSort sort) {
return commentService.getCommentsForPost(postId, sort).stream()
.map(this::toDtoWithReplies)
.collect(Collectors.toList());
}

3
src/main/java/com/openisle/controller/PostController.java
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@@ -4,6 +4,7 @@ import com.openisle.model.Comment;
import com.openisle.model.Post;
import com.openisle.model.Reaction;
import com.openisle.service.CommentService;
import com.openisle.model.CommentSort;
import com.openisle.service.PostService;
import com.openisle.service.ReactionService;
import com.openisle.service.CaptchaService;
@@ -180,7 +181,7 @@ public class PostController {
.collect(Collectors.toList());
dto.setReactions(reactions);
List<CommentDto> comments = commentService.getCommentsForPost(post.getId())
List<CommentDto> comments = commentService.getCommentsForPost(post.getId(), CommentSort.OLDEST)
.stream()
.map(this::toCommentDtoWithReplies)
.collect(Collectors.toList());

10
src/main/java/com/openisle/model/CommentSort.java Normal file
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@@ -0,0 +1,10 @@
package com.openisle.model;
/**
* Sort options for comments.
*/
public enum CommentSort {
NEWEST,
OLDEST,
MOST_INTERACTIONS
}

17
src/main/java/com/openisle/service/CommentService.java
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@@ -4,6 +4,7 @@ import com.openisle.model.Comment;
import com.openisle.model.Post;
import com.openisle.model.User;
import com.openisle.model.NotificationType;
import com.openisle.model.CommentSort;
import com.openisle.repository.CommentRepository;
import com.openisle.repository.PostRepository;
import com.openisle.repository.UserRepository;
@@ -104,10 +105,16 @@ public class CommentService {
return comment;
}
public List<Comment> getCommentsForPost(Long postId) {
public List<Comment> getCommentsForPost(Long postId, CommentSort sort) {
Post post = postRepository.findById(postId)
.orElseThrow(() -> new com.openisle.exception.NotFoundException("Post not found"));
return commentRepository.findByPostAndParentIsNullOrderByCreatedAtAsc(post);
List<Comment> list = commentRepository.findByPostAndParentIsNullOrderByCreatedAtAsc(post);
if (sort == CommentSort.NEWEST) {
list.sort(java.util.Comparator.comparing(Comment::getCreatedAt).reversed());
} else if (sort == CommentSort.MOST_INTERACTIONS) {
list.sort((a, b) -> Integer.compare(interactionCount(b), interactionCount(a)));
}
return list;
}
public List<Comment> getReplies(Long parentId) {
@@ -167,4 +174,10 @@ public class CommentService {
imageUploader.removeReferences(imageUploader.extractUrls(comment.getContent()));
commentRepository.delete(comment);
}
private int interactionCount(Comment comment) {
int reactions = reactionRepository.findByComment(comment).size();
int replies = commentRepository.findByParentOrderByCreatedAtAsc(comment).size();
return reactions + replies;
}
}

3
src/test/java/com/openisle/controller/CommentControllerTest.java
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@@ -19,6 +19,7 @@ import java.time.LocalDateTime;
import java.util.List;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.ArgumentMatchers.any;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
@@ -53,7 +54,7 @@ class CommentControllerTest {
void createAndListComments() throws Exception {
Comment comment = createComment(1L, "hi", "bob");
Mockito.when(commentService.addComment(eq("bob"), eq(1L), eq("hi"))).thenReturn(comment);
Mockito.when(commentService.getCommentsForPost(1L)).thenReturn(List.of(comment));
Mockito.when(commentService.getCommentsForPost(eq(1L), any())).thenReturn(List.of(comment));
Mockito.when(commentService.getReplies(1L)).thenReturn(List.of());
mockMvc.perform(post("/api/posts/1/comments")

2
src/test/java/com/openisle/controller/PostControllerTest.java
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@@ -184,7 +184,7 @@ class PostControllerTest {
cr.setType(com.openisle.model.ReactionType.LIKE);
Mockito.when(postService.viewPost(eq(1L), Mockito.isNull())).thenReturn(post);
Mockito.when(commentService.getCommentsForPost(1L)).thenReturn(List.of(comment));
Mockito.when(commentService.getCommentsForPost(eq(1L), any())).thenReturn(List.of(comment));
Mockito.when(commentService.getReplies(2L)).thenReturn(List.of(reply));
Mockito.when(commentService.getReplies(3L)).thenReturn(List.of());
Mockito.when(commentService.getParticipants(Mockito.anyLong(), Mockito.anyInt())).thenReturn(java.util.List.of());