add task solution

README.md

@@ -35,3 +35,5 @@ Install Prettier Extention and use this [VSCode settings](https://mate-academy.g
 1. Implement comment deletion
     - Delete the commnet immediately not waiting for the server response to improve the UX.
 1. (*) Handle `Add` and `Delete` errors so the user can retry
+
+[DEMO LINK](https://Kirill1908.github.io/react_dynamic-list-of-posts/)

src/App.tsx

@@ -1,60 +1,187 @@
-import classNames from 'classnames';
+/* eslint-disable @typescript-eslint/indent */
 
+import classNames from 'classnames';
 import 'bulma/css/bulma.css';
 import '@fortawesome/fontawesome-free/css/all.css';
 import './App.scss';
+import { useEffect, useState } from 'react';
 
-import { PostsList } from './components/PostsList';
-import { PostDetails } from './components/PostDetails';
 import { UserSelector } from './components/UserSelector';
+import { PostDetails } from './components/PostDetails';
+import { PostsList } from './components/PostsList';
 import { Loader } from './components/Loader';
+import { Comment, CommentData } from './types/Comment';
+import { User } from './types/User';
+import { Post } from './types/Post';
+import {
+  addNewComment,
+  deleteComment,
+  getUserPostComments,
+  getUserPosts,
+  getUsers,
+} from './api/post';
 
-export const App = () => (
-  <main className="section">
-    <div className="container">
-      <div className="tile is-ancestor">
-        <div className="tile is-parent">
-          <div className="tile is-child box is-success">
-            <div className="block">
-              <UserSelector />
-            </div>
+export const App = () => {
+  const [users, setUsers] = useState<User[]>([]);
+  const [userSelected, setUserSelected] = useState<User | null>(null);
+  const [showPostLoader, setShowPostLoader] = useState<boolean>(false);
+  const [showCommentLoader, setShowCommentLoader] = useState<boolean>(false);
+  const [isAddingComment, setIsAddingComment] = useState(false);
+  const [userPosts, setUserPosts] = useState<Post[]>([]);
+  const [selectedPost, setSelectedPost] = useState<Post | null>(null);
+  const [isSidebarVisible, setIsSidebarVisible] = useState<number | null>(null);
+  const [postComments, setPostComments] = useState<Comment[]>([]);
+  const [hasPostError, setHasPostError] = useState<boolean>(false);
+  const [hasCommentError, setHasCommentError] = useState<boolean>(false);
+  const [isCommentFormVisible, setIsCommentFormVisible] = useState(false);
 
-            <div className="block" data-cy="MainContent">
-              <p data-cy="NoSelectedUser">No user selected</p>
+  useEffect(() => {
+    getUsers()
+      .then(res => {
+        setUsers(res as User[]);
+      })
+      .catch(() => new Error('Failed to fetch users'));
+  }, []);
 
-              <Loader />
+  const fetchUserPosts = (user: User) => {
+    setShowPostLoader(true);
+    getUserPosts(user.id)
+      .then(res => {
+        setUserPosts(res as Post[]);
+        setHasPostError(false);
+      })
+      .catch(() => {
+        setHasPostError(true);
+      })
+      .finally(() => {
+        setShowPostLoader(false);
+      });
+  };
 
-              <div
-                className="notification is-danger"
-                data-cy="PostsLoadingError"
-              >
-                Something went wrong!
-              </div>
+  const fetchPostComments = (currentPost: Post) => {
+    setIsSidebarVisible(currentPost.id);
+    setShowCommentLoader(true);
+
+    setSelectedPost(currentPost);
 
-              <div className="notification is-warning" data-cy="NoPostsYet">
-                No posts yet
+    getUserPostComments(currentPost.id)
+      .then(res => {
+        setPostComments(res as Comment[]);
+        setHasCommentError(false);
+      })
+      .catch(() => {
+        setHasCommentError(true);
+      })
+      .finally(() => {
+        setShowCommentLoader(false);
+      });
+  };
+
+  const removeComment = (commentId: number) => {
+    deleteComment(commentId)
+      .then(() => {
+        setPostComments(prevPostComments =>
+          prevPostComments.filter(
+            (comment: Comment) => comment.id !== commentId,
+          ),
+        );
+      })
+      .catch(() => new Error('Failed to delete comment'));
+  };
+
+  const createComment = (newComment: CommentData) => {
+    setIsAddingComment(true);
+    addNewComment(newComment)
+      .then(res => {
+        setPostComments([...postComments, res as Comment]);
+        setIsAddingComment(false);
+      })
+      .catch(() => new Error('Failed to add comment'));
+  };
+
+  return (
+    <main className="section">
+      <div className="container">
+        <div className="tile is-ancestor">
+          <div className="tile is-parent">
+            <div className="tile is-child box is-success">
+              <div className="block">
+                <UserSelector
+                  users={users}
+                  setUserSelected={setUserSelected}
+                  userSelected={userSelected}
+                  handleUserPosts={fetchUserPosts}
+                  setShowSideBar={setIsSidebarVisible}
+                />
               </div>
 
-              <PostsList />
+              <div className="block" data-cy="MainContent">
+                {!userSelected && (
+                  <p data-cy="NoSelectedUser">No user selected</p>
+                )}
+
+                {showPostLoader && <Loader />}
+
+                {hasPostError && (
+                  <div
+                    className="notification is-danger"
+                    data-cy="PostsLoadingError"
+                  >
+                    Something went wrong!
+                  </div>
+                )}
+
+                {userPosts.length > 0 && !showPostLoader && (
+                  <PostsList
+                    userPosts={userPosts}
+                    handleShowComment={fetchPostComments}
+                    showSideBar={isSidebarVisible}
+                    setShowSideBar={setIsSidebarVisible}
+                    setShowCommentForm={setIsCommentFormVisible}
+                  />
+                )}
+                {userSelected &&
+                  userPosts.length === 0 &&
+                  !showPostLoader &&
+                  !hasPostError && (
+                    <div
+                      className="notification is-warning"
+                      data-cy="NoPostsYet"
+                    >
+                      No posts yet
+                    </div>
+                  )}
+              </div>
             </div>
           </div>
-        </div>
 
-        <div
-          data-cy="Sidebar"
-          className={classNames(
-            'tile',
-            'is-parent',
-            'is-8-desktop',
-            'Sidebar',
-            'Sidebar--open',
-          )}
-        >
-          <div className="tile is-child box is-success ">
-            <PostDetails />
+          <div
+            data-cy="Sidebar"
+            className={classNames(
+              'tile',
+              'is-parent',
+              'is-8-desktop',
+              'Sidebar',
+              { 'Sidebar--open': isSidebarVisible },
+            )}
+          >
+            <div className="tile is-child box is-success ">
+              <PostDetails
+                isCommentLoading={showCommentLoader}
+                postComments={postComments}
+                selectedPost={selectedPost}
+                errorsComment={hasCommentError}
+                onDeleteComment={removeComment}
+                onAddComment={createComment}
+                isButtonAddLoading={isAddingComment}
+                onShowCommentFormChange={setIsCommentFormVisible}
+                isCommentFormVisible={isCommentFormVisible}
+                userSelected={userSelected}
+              />
+            </div>
           </div>
         </div>
       </div>
-    </div>
-  </main>
-);
+    </main>
+  );
+};

src/api/post.ts

@@ -0,0 +1,22 @@
+import { CommentData } from '../types/Comment';
+import { client } from '../utils/fetchClient';
+
+export const getUsers = () => {
+  return client.get('/users');
+};
+
+export const getUserPosts = (userId: number) => {
+  return client.get(`/posts?userId=${userId}`);
+};
+
+export const getUserPostComments = (postId: number) => {
+  return client.get(`/comments?postId=${postId}`);
+};
+
+export const addNewComment = (newComment: CommentData) => {
+  return client.post('/comments', newComment);
+};
+
+export const deleteComment = (commentId: number) => {
+  return client.delete(`/comments/${commentId}`);
+};