add sorter for comments

pages/[username]/[post_id].tsx

@@ -30,7 +30,6 @@ const PostPage = () => {
   const router = useRouter()
   const id = router.query.post_id
   const [post, setPost]: [Post, any] = useState(null)
-  const [comments, setComments]: [Comment[], any] = useState([])
   useEffect(() => {
     if (id) {
       getData()
@@ -49,14 +48,8 @@ const PostPage = () => {
   const getData = async () => {
     const res = await requestApi.get(`/story/post/${id}`)
     setPost(res.data)
-
-    getComments(res.data.id)
   }
 
-  const getComments = async (id) => {
-    const res = await requestApi.get(`/story/comments/${id}`)
-    setComments(res.data)
-  }
 
   return (
     <>
@@ -80,7 +73,7 @@ const PostPage = () => {
               </Box>
               <HStack ml="2" spacing="3" mt="4">{post.rawTags.map(tag => <TagTextCard key={tag.id} tag={tag} />)}</HStack>
 
-              <Box mt="6" p="2"><Comments storyID={post.id} comments={comments} onChange={() => getComments(post.id)} /></Box>
+              <Box mt="6" p="2"><Comments storyID={post.id} /></Box>
             </Box>
             <Box pt="16">
               <PostSidebar post={post} />

server/internal/api/comment.go

@@ -51,7 +51,13 @@ func SubmitComment(c *gin.Context) {
 
 func GetStoryComments(c *gin.Context) {
 	storyID := c.Param("id")
-	comments, err := story.GetComments(storyID)
+	sorter := c.Query("sorter")
+
+	if !models.ValidSearchFilter(sorter) {
+		c.JSON(http.StatusBadRequest, e.ParamInvalid)
+		return
+	}
+	comments, err := story.GetComments(storyID, sorter)
 	if err != nil {
 		c.JSON(err.Status, common.RespError(err.Message))
 		return
@@ -63,7 +69,7 @@ func GetStoryComments(c *gin.Context) {
 			comment.Liked = interaction.GetLiked(comment.ID, user.ID)
 		}
 
-		replies, err := story.GetComments(comment.ID)
+		replies, err := story.GetComments(comment.ID, sorter)
 		if err != nil {
 			continue
 		}

server/internal/story/comment.go

@@ -72,8 +72,8 @@ func EditComment(c *models.Comment) *e.Error {
 	return nil
 }
 
-func GetComments(storyID string) (models.Comments, *e.Error) {
-	comments := make(models.Comments, 0)
+func GetComments(storyID string, sorter string) ([]*models.Comment, *e.Error) {
+	comments := make([]*models.Comment, 0)
 	rows, err := db.Conn.Query("SELECT id,target_id,creator,md,created,updated FROM comments WHERE target_id=?", storyID)
 	if err != nil && err != sql.ErrNoRows {
 		logger.Warn("get comments error", "error", err)
@@ -100,7 +100,11 @@ func GetComments(storyID string) (models.Comments, *e.Error) {
 		comments = append(comments, c)
 	}
 
-	sort.Sort(comments)
+	if sorter == models.FilterFavorites {
+		sort.Sort(models.FavorComments(comments))
+	} else {
+		sort.Sort(models.Comments(comments))
+	}
 
 	return comments, nil
 }

server/pkg/models/comment.go

@@ -22,3 +22,11 @@ func (ar Comments) Swap(i, j int) { ar[i], ar[j] = ar[j], ar[i] }
 func (ar Comments) Less(i, j int) bool {
 	return ar[i].Created.Unix() > ar[j].Created.Unix()
 }
+
+type FavorComments []*Comment
+
+func (ar FavorComments) Len() int      { return len(ar) }
+func (ar FavorComments) Swap(i, j int) { ar[i], ar[j] = ar[j], ar[i] }
+func (ar FavorComments) Less(i, j int) bool {
+	return ar[i].Likes > ar[j].Likes
+}

src/components/comments/comments.tsx

@@ -1,26 +1,38 @@
-import React, { useState } from "react"
-import {Text, Flex, HStack,  Button, VStack } from "@chakra-ui/react"
+import React, { useEffect, useState } from "react"
+import {Text, Flex, HStack,  Button, VStack, Select } from "@chakra-ui/react"
 import Card from "components/card"
 import useSession from "hooks/use-session"
 import { requestApi } from "utils/axios/request"
 import CommentCard from "./comment"
 import CommentEditor from "./editor"
 import { Comment } from "src/types/comments"
+import { SearchFilter } from "src/types/search"
+import { upperFirst } from "lodash"
 
 interface Props {
     storyID: string
-    comments: Comment[]
-    onChange: any
 }
-export const Comments = ({storyID, comments,onChange }: Props) => {
+export const Comments = ({storyID}: Props) => {
+    const [comments, setComments]: [Comment[], any] = useState([])
+
     const [editorVisible,setEditorVisible] = useState(false)
+    const [sorter,setSorter] = useState(SearchFilter.Favorites)
     const session = useSession()
+
+    useEffect(() => {
+        getComments()
+    },[])
     const submitComment = async (md) => {
         await requestApi.post('/story/comment',{targetID: storyID, md: md})
         setEditorVisible(false)
-        onChange()
+        getComments()
     }
     
+    const getComments = async (s?) => {
+        const res = await requestApi.get(`/story/comments/${storyID}?sorter=${s??sorter}`)
+        setComments(res.data)
+    }
+
     const countComments = () => {
         let n = comments.length
         for (const c of comments) {
@@ -34,8 +46,12 @@ export const Comments = ({storyID, comments,onChange }: Props) => {
         <VStack spacing="4" alignItems="left" id="comments">
             <Card>
                 <Flex justifyContent="space-between">
-                    <HStack>
+                    <HStack spacing="4">
                         <Text fontWeight="600" fontSize="1.1rem">Comments ({countComments()})</Text>
+                        <Select fontWeight="550" cursor="pointer" width="100px" value={sorter} onChange={e => {setSorter(e.currentTarget.value as SearchFilter);getComments(e.currentTarget.value)}} variant="unstyled">
+                            <option value={SearchFilter.Favorites}>{upperFirst(SearchFilter.Favorites)}</option>
+                            <option value={SearchFilter.Recent}>{upperFirst(SearchFilter.Recent)}</option>
+                        </Select>
                     </HStack>
 
                     <Button variant="outline" colorScheme="teal" onClick={() => setEditorVisible(true)} _focus={null}>Add comment</Button>
@@ -44,7 +60,7 @@ export const Comments = ({storyID, comments,onChange }: Props) => {
 
             {editorVisible && session && <CommentEditor user={session.user} md="" onSubmit={md => submitComment(md)} onCancel={() => setEditorVisible(false)}/>}
 
-            {comments.map(comment => <CommentCard user={session?.user} key={comment.id} comment={comment} onChange={onChange}/>)}
+            {comments.map(comment => <CommentCard user={session?.user} key={comment.id} comment={comment} onChange={getComments}/>)}
         </VStack>
     )
 }