Nested comments

backend/conduit/articles/models.py

@@ -43,6 +43,7 @@ class Comment(Model, SurrogatePK):
     comment_id = Column(db.Integer, db.ForeignKey('comment.id'), nullable=True)
     parentComment = relationship('Comment', backref=db.backref('parent', remote_side=[id]), lazy='dynamic')
 
+
     def __init__(self, article, author, body, comment_id=None, **kwargs):
         db.Model.__init__(self, author=author, body=body, article=article, **kwargs)
 

components/article/ArticlePreview.tsx

@@ -28,7 +28,7 @@ const ArticlePreview = ({ article }) => {
     if (!isLoggedIn) {
       Router.push(`/user/login`);
       return;
-    }
+    } 
 
     setPreview({
       ...preview,

components/comment/CommentInput.tsx

@@ -10,6 +10,7 @@ import { SERVER_BASE_URL } from "../../lib/utils/constant";
 import storage from "../../lib/utils/storage";
 
 const CommentInput = () => {
+
   const { data: currentUser } = useSWR("user", storage);
   const isLoggedIn = checkLogin(currentUser);
   const router = useRouter();

components/comment/CommentList.tsx

@@ -2,6 +2,12 @@ import { useRouter } from "next/router";
 import React from "react";
 import useSWR from "swr";
 
+import { useState } from 'react';
+import { message } from 'antd';
+import checkLogin from "../../lib/utils/checkLogin";
+import storage from "../../lib/utils/storage";
+import EditorBox from "./EditorBox";
+
 import CommentInput from "./CommentInput";
 import ErrorMessage from "../common/ErrorMessage";
 import LoadingSpinner from "../common/LoadingSpinner";
@@ -11,7 +17,24 @@ import { SERVER_BASE_URL } from "../../lib/utils/constant";
 import fetcher from "../../lib/utils/fetcher";
 import { Comment, Avatar } from 'antd';
 
+
 const CommentList = () => {
+  // clickedComment is the value of the id of the comment that has clicked the Reply To button
+  var [clickedComment, setClick] = useState( '' );
+
+  const { data: currentUser } = useSWR("user", storage);
+  const isLoggedIn = checkLogin(currentUser)
+
+  const handleClickReplyTo = (comment) => {
+
+    if (isLoggedIn) {
+      setClick( comment.id );
+    } 
+    else { // Not Logged In
+      message.info("Please log in to reply", 10)
+    }
+  }
+
   const router = useRouter();
   const {
     query: { pid },
@@ -32,13 +55,35 @@ const CommentList = () => {
     );
 
   const { comments } = data;
+
 
   const recurseComments = (comments) => {
-    return (
+
+   return (
+
       comments.map((comment: CommentType) => (
+
         <Comment
           key={comment.id}
-          actions={[<span key="comment-nested-reply-to">Reply to</span>]}
+          actions= {[
+            /*
+            If the clickedComment has this id, then there is the Editor Box, so hide the Reply To
+            Else, the clickedComment does NOT have this id, 
+            so show the Reply To option
+            */
+
+            clickedComment == comment.id ?
+            null
+            :
+            <span key="comment-nested-reply-to"
+              onClick= {() => 
+                handleClickReplyTo(comment)
+              } 
+
+            >Reply to </span>
+
+          ]}
+
           author={comment.author.username}
           avatar={
             <Avatar
@@ -47,18 +92,40 @@ const CommentList = () => {
             />
           }
           content={
-            <p>{comment.body}</p>
+            <div>
+              <p>
+                { comment.body } 
+              </p>
+              <p>
+                {
+                  /*
+                  If the clickedComment has this id, then show the Editor Box
+                  */
+                  clickedComment == comment.id ?  
+                    <EditorBox 
+                      commentId = {comment.id}
+                    /> :  null    
+                }
+              </p>
+
+            </div>
           }
         >
-          {comment.parentComment.comments.length > 0 ? recurseComments(comment.parentComment.comments) : null}
+
+          {
+            comment.parentComment.comments.length > 0 ? recurseComments(comment.parentComment.comments) : null
+          }
+
         </Comment>
+
       )))
   }
 
   return (
     <div>
       <CommentInput />
       {recurseComments(comments)}
+
     </div>
   );
 };

components/comment/EditorBox.tsx

@@ -0,0 +1,86 @@
+// Based on CommentInput.tsx
+
+import axios from "axios";
+import { useRouter } from "next/router";
+import React from "react";
+import useSWR, { trigger } from "swr";
+
+import checkLogin from "../../lib/utils/checkLogin";
+import { SERVER_BASE_URL } from "../../lib/utils/constant";
+import storage from "../../lib/utils/storage";
+
+
+import { Form, Button, Input} from 'antd';
+const { TextArea } = Input;
+
+
+const Editor = ( { onChange, onSubmit, submitting, value } ) => (
+  <>
+    <Form.Item>
+      <TextArea rows={4} onChange={onChange} value={value} />
+    </Form.Item>
+    <Form.Item>
+      <Button htmlType="submit" loading={submitting} onClick={onSubmit} type="primary">
+        Add Comment
+      </Button>
+    </Form.Item>
+  </>
+)
+
+const EditorBox = ( {commentId} ) => {
+    const { data: currentUser } = useSWR("user", storage);
+    const isLoggedIn = checkLogin(currentUser);
+    const router = useRouter();
+    const {
+      query: { pid },
+    } = router;
+
+    const [content, setContent] = React.useState("");
+    const [isLoading, setLoading] = React.useState(false);
+
+    const handleChange = React.useCallback((e) => {
+      setContent(e.target.value);
+    }, []);
+
+    const handleSubmit = async (e) => {
+      e.preventDefault();
+      setLoading(true);
+      await axios.post(
+        `${SERVER_BASE_URL}/articles/${encodeURIComponent(String(pid))}/comments`,
+        JSON.stringify({
+          comment: {
+            body: content,
+            comment_id: commentId,
+          },
+        }),
+        {
+          headers: {
+            "Content-Type": "application/json",
+            Authorization: `Token ${encodeURIComponent(currentUser?.token)}`,
+          },
+        }
+      );
+      setLoading(false);
+      setContent("");
+      trigger(`${SERVER_BASE_URL}/articles/${pid}/comments`);
+    };
+
+    if (!isLoggedIn) {
+        return (
+            null
+        );
+
+    } else { // is Logged In
+      return (
+        <Editor 
+              onChange={handleChange}
+              onSubmit={ handleSubmit }
+              submitting = { isLoading }
+              value={ content }
+            />
+      );
+    }
+
+};
+
+export default EditorBox;

lib/types/commentType.ts

@@ -21,4 +21,4 @@ export type Author = {
 
 export type CommentChildren = {
   comments: CommentType[];
-}
+}

pages/article/[pid].tsx

@@ -1,3 +1,4 @@
+
 import marked from "marked";
 import Router, { useRouter } from "next/router";
 import React from "react";
@@ -16,6 +17,7 @@ import CommentList from "../../components/comment/CommentList";
 import ArticleAPI from "../../lib/api/article";
 import { Article } from "../../lib/types/articleType";
 import ArticleTags from "../../components/article/ArticleTags";
+import { emitKeypressEvents } from "readline";
 
 const ArticleContain = styled.div`  
   width: 880px;
@@ -82,6 +84,7 @@ const ArticlePage = (initialArticle) => {
   const { data: currentUser } = useSWR("user", storage);
   const isLoggedIn = checkLogin(currentUser);
 
+
   const handleClickFavorite = async slug => {
     if (!isLoggedIn) {
       Router.push(`/user/login`);