From d7b2499c13bcafa26bb657afd98b5fe89e4b2724 Mon Sep 17 00:00:00 2001
From: MTG2000 <mtg0987654321@gmail.com>
Date: Tue, 26 Apr 2022 10:41:03 +0300
Subject: [PATCH] feat: comment with replies component, convertCommentsToTree
 helper method, comments section component, add comment input component,
 useAutoResizableText area, update mocks with comments data

---
 .../Comments/AddComment/AddComment.tsx        | 33 +++++++++++++++++++
 .../Comments/Comment/Comment.stories.tsx      | 28 ++++++++++++++++
 .../Components/Comments/Comment/Comment.tsx   | 22 +++++++++++++
 .../CommentCard/CommentCard.stories.tsx       |  6 ++--
 .../CommentCard/CommentCard.tsx               | 12 ++-----
 .../CommentsSection.stories.tsx               | 22 +++++++++++++
 .../CommentsSection/CommentsSection.tsx       | 27 +++++++++++++++
 .../Posts/Components/Comments/helpers.tsx     | 19 +++++++++++
 .../Posts/Components/Comments/index.tsx       |  1 +
 .../Posts/Components/Comments/types.ts        | 15 +++++++++
 src/mocks/data.ts                             |  5 +--
 src/mocks/data/posts.ts                       |  6 ++--
 src/utils/hooks/index.ts                      |  1 +
 src/utils/hooks/useAutoResizableTextArea.ts   | 20 +++++++++++
 14 files changed, 201 insertions(+), 16 deletions(-)
 create mode 100644 src/features/Posts/Components/Comments/AddComment/AddComment.tsx
 create mode 100644 src/features/Posts/Components/Comments/Comment/Comment.stories.tsx
 create mode 100644 src/features/Posts/Components/Comments/Comment/Comment.tsx
 rename src/features/Posts/Components/{ => Comments}/CommentCard/CommentCard.stories.tsx (80%)
 rename src/features/Posts/Components/{ => Comments}/CommentCard/CommentCard.tsx (77%)
 create mode 100644 src/features/Posts/Components/Comments/CommentsSection/CommentsSection.stories.tsx
 create mode 100644 src/features/Posts/Components/Comments/CommentsSection/CommentsSection.tsx
 create mode 100644 src/features/Posts/Components/Comments/helpers.tsx
 create mode 100644 src/features/Posts/Components/Comments/index.tsx
 create mode 100644 src/features/Posts/Components/Comments/types.ts
 create mode 100644 src/utils/hooks/useAutoResizableTextArea.ts

diff --git a/src/features/Posts/Components/Comments/AddComment/AddComment.tsx b/src/features/Posts/Components/Comments/AddComment/AddComment.tsx
new file mode 100644
index 0000000..669cbd5
--- /dev/null
+++ b/src/features/Posts/Components/Comments/AddComment/AddComment.tsx
@@ -0,0 +1,33 @@
+import { FormEvent } from "react";
+import Button from "src/Components/Button/Button";
+import Avatar from "src/features/Profiles/Components/Avatar/Avatar";
+import { useAutoResizableTextArea } from "src/utils/hooks";
+
+
+
+export default function AddComment() {
+
+    const textAreaRef = useAutoResizableTextArea();
+
+    const submitComment = (e: FormEvent) => {
+        e.preventDefault();
+        alert('submitted')
+    }
+
+    return (
+        <form onSubmit={submitComment} className="border border-gray-200 rounded-10 p-24">
+            <div className="flex gap-16 items-start pb-24 border-b border-gray-200 focus-within:border-primary-500">
+                <Avatar width={48} src='https://i.pravatar.cc/150?img=1' />
+                <textarea
+                    rows={2}
+                    className="w-full border-0 text-gray-500 font-medium focus:!ring-0 resize-none"
+                    placeholder='Leave a comment...'
+                    ref={textAreaRef}
+                />
+            </div>
+            <div className="flex mt-24">
+                <Button type='submit' color="primary" className="ml-auto">Submit</Button>
+            </div>
+        </form>
+    )
+}
diff --git a/src/features/Posts/Components/Comments/Comment/Comment.stories.tsx b/src/features/Posts/Components/Comments/Comment/Comment.stories.tsx
new file mode 100644
index 0000000..0ec8f23
--- /dev/null
+++ b/src/features/Posts/Components/Comments/Comment/Comment.stories.tsx
@@ -0,0 +1,28 @@
+import { ComponentStory, ComponentMeta } from '@storybook/react';
+import { MOCK_DATA } from 'src/mocks/data';
+
+import Comment from './Comment';
+
+export default {
+    title: 'Posts/Components/Comments/Comment with Replies',
+    component: Comment,
+    argTypes: {
+        backgroundColor: { control: 'color' },
+    },
+} as ComponentMeta<typeof Comment>;
+
+
+const Template: ComponentStory<typeof Comment> = (args) => <div className="max-w-[70ch]"><Comment {...args} ></Comment></div>
+
+export const Default = Template.bind({});
+Default.args = {
+    comment: {
+        ...MOCK_DATA.generatePostComments(1)[0],
+        replies: [
+            { ...MOCK_DATA.generatePostComments(1)[0], replies: [] },
+            { ...MOCK_DATA.generatePostComments(1)[0], replies: [] }
+        ]
+    }
+}
+
+
diff --git a/src/features/Posts/Components/Comments/Comment/Comment.tsx b/src/features/Posts/Components/Comments/Comment/Comment.tsx
new file mode 100644
index 0000000..1cfb6ea
--- /dev/null
+++ b/src/features/Posts/Components/Comments/Comment/Comment.tsx
@@ -0,0 +1,22 @@
+
+import CommentCard from "../CommentCard/CommentCard";
+import { CommentWithReplies } from "../types";
+
+
+interface Props {
+    comment: CommentWithReplies
+}
+
+export default function Comment({ comment }: Props) {
+    return (
+        <div >
+            <CommentCard comment={comment} />
+            {comment.replies.length > 0 && <div className="flex mt-16 gap-20">
+                <div className="border-l border-b border-gray-200 w-24 h-40 rounded-bl-8 flex-shrink-0 ml-8"></div>
+                <div className="flex flex-col gap-16">
+                    {comment.replies.map(reply => <Comment key={reply.id} comment={reply} />)}
+                </div>
+            </div>}
+        </div>
+    )
+}
diff --git a/src/features/Posts/Components/CommentCard/CommentCard.stories.tsx b/src/features/Posts/Components/Comments/CommentCard/CommentCard.stories.tsx
similarity index 80%
rename from src/features/Posts/Components/CommentCard/CommentCard.stories.tsx
rename to src/features/Posts/Components/Comments/CommentCard/CommentCard.stories.tsx
index e095e04..1e73b25 100644
--- a/src/features/Posts/Components/CommentCard/CommentCard.stories.tsx
+++ b/src/features/Posts/Components/Comments/CommentCard/CommentCard.stories.tsx
@@ -4,7 +4,7 @@ import { MOCK_DATA } from 'src/mocks/data';
 import CommentCard from './CommentCard';
 
 export default {
-    title: 'Posts/Components/CommentCard',
+    title: 'Posts/Components/Comments/CommentCard',
     component: CommentCard,
     argTypes: {
         backgroundColor: { control: 'color' },
@@ -16,7 +16,9 @@ const Template: ComponentStory<typeof CommentCard> = (args) => <div className="m
 
 export const Default = Template.bind({});
 Default.args = {
-    comment: MOCK_DATA.posts.stories[0].comments[0]
+    comment: {
+        ...MOCK_DATA.posts.stories[0].comments[0],
+    }
 }
 
 
diff --git a/src/features/Posts/Components/CommentCard/CommentCard.tsx b/src/features/Posts/Components/Comments/CommentCard/CommentCard.tsx
similarity index 77%
rename from src/features/Posts/Components/CommentCard/CommentCard.tsx
rename to src/features/Posts/Components/Comments/CommentCard/CommentCard.tsx
index b5ab494..bcdae39 100644
--- a/src/features/Posts/Components/CommentCard/CommentCard.tsx
+++ b/src/features/Posts/Components/Comments/CommentCard/CommentCard.tsx
@@ -1,15 +1,9 @@
 import { BiComment } from "react-icons/bi";
-import Button from "src/Components/Button/Button";
 import VotesCount from "src/Components/VotesCount/VotesCount";
-import { Author } from "../../types"
-import Header from "../PostCard/Header/Header";
+import Header from "src/features/Posts/Components/PostCard/Header/Header";
+import { Comment } from "../types";
+
 
-interface Comment {
-    author: Author
-    created_at: string
-    body: string;
-    votes_count: number
-}
 interface Props {
     comment: Comment
 }
diff --git a/src/features/Posts/Components/Comments/CommentsSection/CommentsSection.stories.tsx b/src/features/Posts/Components/Comments/CommentsSection/CommentsSection.stories.tsx
new file mode 100644
index 0000000..24820d8
--- /dev/null
+++ b/src/features/Posts/Components/Comments/CommentsSection/CommentsSection.stories.tsx
@@ -0,0 +1,22 @@
+import { ComponentStory, ComponentMeta } from '@storybook/react';
+import { MOCK_DATA } from 'src/mocks/data';
+
+import CommentsSection from './CommentsSection';
+
+export default {
+    title: 'Posts/Components/Comments/CommentsSection',
+    component: CommentsSection,
+    argTypes: {
+        backgroundColor: { control: 'color' },
+    },
+} as ComponentMeta<typeof CommentsSection>;
+
+
+const Template: ComponentStory<typeof CommentsSection> = (args) => <div className="max-w-[70ch]"><CommentsSection {...args} ></CommentsSection></div>
+
+export const Default = Template.bind({});
+Default.args = {
+    comments: MOCK_DATA.generatePostComments(15)
+}
+
+
diff --git a/src/features/Posts/Components/Comments/CommentsSection/CommentsSection.tsx b/src/features/Posts/Components/Comments/CommentsSection/CommentsSection.tsx
new file mode 100644
index 0000000..4194545
--- /dev/null
+++ b/src/features/Posts/Components/Comments/CommentsSection/CommentsSection.tsx
@@ -0,0 +1,27 @@
+import React, { useMemo } from 'react'
+import Comment from '../Comment/Comment'
+import AddComment from '../AddComment/AddComment'
+import { convertCommentsToTree } from '../helpers'
+import { Comment as IComment } from '../types'
+
+interface Props {
+  comments: IComment[]
+}
+
+export default function CommentsSection({ comments }: Props) {
+  const commentsTree = useMemo(() => convertCommentsToTree(comments), [comments])
+
+  return (
+    <div className="border border-gray-200 rounded-10 p-32 bg-white">
+      <h6 className="text-body2 font-bolder">Discussion ({comments.length})</h6>
+      <div className="mt-24">
+        <AddComment />
+      </div>
+      <div className="border border-gray-200 rounded-10 p-24 mt-32">
+        <div className='flex flex-col gap-16'>
+          {commentsTree.map(comment => <Comment key={comment.id} comment={comment} />)}
+        </div>
+      </div>
+    </div>
+  )
+}
diff --git a/src/features/Posts/Components/Comments/helpers.tsx b/src/features/Posts/Components/Comments/helpers.tsx
new file mode 100644
index 0000000..12bf818
--- /dev/null
+++ b/src/features/Posts/Components/Comments/helpers.tsx
@@ -0,0 +1,19 @@
+import { Comment, CommentWithReplies } from "./types";
+
+
+export function convertCommentsToTree(comments: Comment[]) {
+    let tree: Record<Comment['id'], CommentWithReplies> = {};
+
+    for (const comment of comments)
+        tree[comment.id] = { ...comment, replies: [] }
+
+    for (const comment of Object.values(tree)) {
+        if (comment.parentId)
+            tree[comment.parentId].replies = [...tree[comment.parentId].replies, comment]
+    }
+
+    // TODO
+    // Sort the comments according to date
+
+    return Object.values(tree).filter(node => !node.parentId);
+}
\ No newline at end of file
diff --git a/src/features/Posts/Components/Comments/index.tsx b/src/features/Posts/Components/Comments/index.tsx
new file mode 100644
index 0000000..3deda80
--- /dev/null
+++ b/src/features/Posts/Components/Comments/index.tsx
@@ -0,0 +1 @@
+export { }
\ No newline at end of file
diff --git a/src/features/Posts/Components/Comments/types.ts b/src/features/Posts/Components/Comments/types.ts
new file mode 100644
index 0000000..98d973a
--- /dev/null
+++ b/src/features/Posts/Components/Comments/types.ts
@@ -0,0 +1,15 @@
+
+import { Author } from "src/features/Posts/types";
+
+export interface Comment {
+    id: number
+    author: Author
+    created_at: string
+    body: string
+    votes_count: number
+    parentId: number
+}
+
+export interface CommentWithReplies extends Comment {
+    replies: CommentWithReplies[]
+}
\ No newline at end of file
diff --git a/src/mocks/data.ts b/src/mocks/data.ts
index 269a6f6..42e78c7 100644
--- a/src/mocks/data.ts
+++ b/src/mocks/data.ts
@@ -1,9 +1,10 @@
-import { posts, feed } from "./data/posts";
+import { posts, feed, generatePostComments } from "./data/posts";
 import { categories, projects } from "./data/projects";
 
 export const MOCK_DATA = {
     projects,
     categories,
     posts,
-    feed
+    feed,
+    generatePostComments: generatePostComments
 }
\ No newline at end of file
diff --git a/src/mocks/data/posts.ts b/src/mocks/data/posts.ts
index 43727d6..4e2bebc 100644
--- a/src/mocks/data/posts.ts
+++ b/src/mocks/data/posts.ts
@@ -14,7 +14,7 @@ const getAuthor = () => ({
     join_date: getDate()
 })
 
-const getPostComments = (cnt: number = 1): Story['comments'] => {
+export const generatePostComments = (cnt: number = 1): Story['comments'] => {
 
     let comments = [];
     const rootCommentsIds: any[] = []
@@ -95,7 +95,7 @@ export let posts = {
                 { id: 3, title: "guide" },
             ],
             author: getAuthor(),
-            comments: getPostComments(),
+            comments: generatePostComments(),
 
         },
     ] as Story[],
@@ -137,7 +137,7 @@ export let posts = {
                 { id: 2, title: "webln" },
             ],
             author: getAuthor(),
-            comments: getPostComments(3)
+            comments: generatePostComments(3)
         },
     ] as Question[]
 }
diff --git a/src/utils/hooks/index.ts b/src/utils/hooks/index.ts
index 498027e..8e6c79e 100644
--- a/src/utils/hooks/index.ts
+++ b/src/utils/hooks/index.ts
@@ -3,3 +3,4 @@ export * from "./useResizeListener";
 export * from "./usePressHolder";
 export * from "./useInfiniteQuery";
 export * from "./useReachedBottom";
+export * from "./useAutoResizableTextArea";
diff --git a/src/utils/hooks/useAutoResizableTextArea.ts b/src/utils/hooks/useAutoResizableTextArea.ts
new file mode 100644
index 0000000..be3d5df
--- /dev/null
+++ b/src/utils/hooks/useAutoResizableTextArea.ts
@@ -0,0 +1,20 @@
+import { useEffect, useRef } from "react";
+
+export const useAutoResizableTextArea = () => {
+    const ref = useRef<HTMLTextAreaElement>(null);
+
+    useEffect(() => {
+        function OnInput() {
+            if (ref.current) {
+                ref.current.style.height = "auto";
+                ref.current.style.height = (ref.current.scrollHeight) + "px";
+            }
+        }
+        ref.current?.setAttribute("style", "height:" + (ref.current?.scrollHeight) + "px;overflow-y:hidden;");
+        ref.current?.addEventListener("input", OnInput, false);
+
+    }, [])
+
+    return ref
+
+}
\ No newline at end of file