working solution

src/App.tsx

@@ -8,53 +8,89 @@ import { PostsList } from './components/PostsList';
 import { PostDetails } from './components/PostDetails';
 import { UserSelector } from './components/UserSelector';
 import { Loader } from './components/Loader';
+import { useUsers } from './hooks/useUsers';
+import { usePosts } from './hooks/usePosts';
+import { useState } from 'react';
 
-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: React.FC = () => {
+  const [isShowForm, setIsShowForm] = useState(false);
 
-            <div className="block" data-cy="MainContent">
-              <p data-cy="NoSelectedUser">No user selected</p>
+  const { users, currentUser, setCurrentUser } = useUsers();
 
-              <Loader />
+  const { posts, currentPost, setCurrentPost, isPostsLoading, isPostsError } =
+    usePosts(currentUser?.id || null);
 
-              <div
-                className="notification is-danger"
-                data-cy="PostsLoadingError"
-              >
-                Something went wrong!
-              </div>
+  const isShowPostsBlock = currentUser && !isPostsError && !isPostsLoading;
 
-              <div className="notification is-warning" data-cy="NoPostsYet">
-                No posts yet
+  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}
+                  currentUser={currentUser}
+                  setCurrentUser={setCurrentUser}
+                  setCurrentPost={setCurrentPost}
+                />
               </div>
 
-              <PostsList />
+              <div className="block" data-cy="MainContent">
+                {!currentUser && (
+                  <p data-cy="NoSelectedUser">No user selected</p>
+                )}
+
+                {isPostsLoading && <Loader />}
+
+                {isPostsError && (
+                  <div
+                    className="notification is-danger"
+                    data-cy="PostsLoadingError"
+                  >
+                    Something went wrong!
+                  </div>
+                )}
+
+                {isShowPostsBlock &&
+                  (posts.length === 0 ? (
+                    <div
+                      className="notification is-warning"
+                      data-cy="NoPostsYet"
+                    >
+                      No posts yet
+                    </div>
+                  ) : (
+                    <PostsList
+                      posts={posts}
+                      currentPost={currentPost}
+                      setCurrentPost={setCurrentPost}
+                      setIsShowForm={setIsShowForm}
+                    />
+                  ))}
+              </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': !!currentPost,
+            })}
+          >
+            {currentPost && (
+              <div className="tile is-child box is-success ">
+                <PostDetails
+                  currentPost={currentPost}
+                  isShowForm={isShowForm}
+                  setIsShowForm={setIsShowForm}
+                />
+              </div>
+            )}
           </div>
         </div>
       </div>
-    </div>
-  </main>
-);
+    </main>
+  );
+};

src/api/comments.ts

@@ -0,0 +1,19 @@
+import { Comment } from '../types/Comment';
+import { client } from '../utils/fetchClient';
+
+export const getComments = (postId: number) => {
+  return client.get<Comment[]>(`/comments?postId=${postId}`);
+};
+
+export const createComment = ({
+  postId,
+  name,
+  email,
+  body,
+}: Omit<Comment, 'id'>) => {
+  return client.post<Comment>(`/comments`, { postId, name, email, body });
+};
+
+export const deleteComment = (commentId: number) => {
+  return client.delete(`/comments/${commentId}`);
+};

src/api/posts.ts

@@ -0,0 +1,6 @@
+import { Post } from '../types/Post';
+import { client } from '../utils/fetchClient';
+
+export const getPosts = (userId: number) => {
+  return client.get<Post[]>(`/posts?userId=${userId}`);
+};

src/api/users.ts

@@ -0,0 +1,8 @@
+import { User } from '../types/User';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 1905;
+
+export const getUsers = () => {
+  return client.get<User[]>(`/users`);
+};

src/components/Comment.tsx

@@ -0,0 +1,38 @@
+import React from 'react';
+import type { Comment } from '../types/Comment';
+
+type Props = {
+  comment: Comment;
+  deleteComment: (commentId: number) => void;
+};
+
+const CommentItem: React.FC<Props> = ({ comment, deleteComment }) => {
+  const handleDelete = () => {
+    deleteComment(comment.id);
+  };
+
+  return (
+    <article className="message is-small" data-cy="Comment">
+      <div className="message-header">
+        <a href={comment.email} data-cy="CommentAuthor">
+          {comment.name}
+        </a>
+        <button
+          data-cy="CommentDelete"
+          type="button"
+          className="delete is-small"
+          aria-label="delete"
+          onClick={handleDelete}
+        >
+          delete button
+        </button>
+      </div>
+
+      <div className="message-body" data-cy="CommentBody">
+        {comment.body}
+      </div>
+    </article>
+  );
+};
+
+export default CommentItem;