Develop

src/App.scss

@@ -21,3 +21,12 @@
 .message-body {
   white-space: pre-line;
 }
+
+.tile.is-ancestor {
+  display: flex;
+}
+
+.tile.is-parent {
+  flex: 1;
+  padding: 0.75rem;
+}

src/App.tsx

@@ -7,54 +7,61 @@ import './App.scss';
 import { PostsList } from './components/PostsList';
 import { PostDetails } from './components/PostDetails';
 import { UserSelector } from './components/UserSelector';
-import { Loader } from './components/Loader';
+import { useState } from 'react';
+import { User } from './types/User';
+import { Post } from './types/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>
-
-            <div className="block" data-cy="MainContent">
-              <p data-cy="NoSelectedUser">No user selected</p>
+export const App = () => {
+  const [selectedUser, setSelectedUser] = useState<User | null>(null);
+  const [selectedPost, setSelectedPost] = useState<Post | null>(null);
 
-              <Loader />
+  const handleUserSelect = (user: User) => {
+    setSelectedUser(user);
+    setSelectedPost(null);
+  };
 
-              <div
-                className="notification is-danger"
-                data-cy="PostsLoadingError"
-              >
-                Something went wrong!
+  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
+                  selectedUser={selectedUser}
+                  onSelectUser={handleUserSelect}
+                />
               </div>
 
-              <div className="notification is-warning" data-cy="NoPostsYet">
-                No posts yet
+              <div className="block" data-cy="MainContent">
+                {selectedUser ? (
+                  <PostsList
+                    selectedUser={selectedUser}
+                    onPostSelect={setSelectedPost}
+                  />
+                ) : (
+                  <p data-cy="NoSelectedUser">No user selected</p>
+                )}
               </div>
-
-              <PostsList />
             </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': selectedPost },
+            )}
+          >
+            <div className="tile is-child box is-success ">
+              {selectedPost && <PostDetails post={selectedPost} />}
+            </div>
           </div>
         </div>
       </div>
-    </div>
-  </main>
-);
+    </main>
+  );
+};

src/api/comments.ts

@@ -0,0 +1,18 @@
+import { ApiPath } from '../enums/api-path.enum';
+import { QueryParams } from '../enums/query-params.enum';
+import { Comment } from '../types/Comment';
+import { client } from '../utils/fetchClient';
+
+export const getCommentsByPost = (postId: number) => {
+  return client.get<Comment[]>(
+    `${ApiPath.COMMENTS}?${QueryParams.POST_ID}=${postId}`,
+  );
+};
+
+export const addComment = (comment: Omit<Comment, 'id'>) => {
+  return client.post<Comment>(ApiPath.COMMENTS, comment);
+};
+
+export const deleteComment = (commentId: number) => {
+  return client.delete(`${ApiPath.COMMENTS}/${commentId}`);
+};

src/api/posts.ts

@@ -0,0 +1,9 @@
+import { client } from '../utils/fetchClient';
+import { Post } from '../types/Post';
+import { ApiPath, QueryParams } from '../enums/enums';
+
+export const getPostsByUserId = (userId: number) => {
+  return client.get<Post[]>(
+    `${ApiPath.POSTS}?${QueryParams.USER_ID}=${userId}`,
+  );
+};

src/api/users.ts

@@ -0,0 +1,5 @@
+import { User } from '../types/User';
+import { client } from '../utils/fetchClient';
+import { ApiPath } from '../enums/api-path.enum';
+
+export const getUsers = () => client.get<User[]>(ApiPath.USERS);