Solution

cypress.json

@@ -1,6 +1,5 @@
 {
   "baseUrl": "http://localhost:3000",
-  "defaultCommandTimeout": 2000,
   "video": true,
   "viewportHeight": 1920,
   "viewportWidth": 1080,

cypress/support/index.d.ts

@@ -1,9 +1 @@
 import '@mate-academy/cypress-tools/support';
-
-declare global {
-  namespace Cypress {
-    interface Chainable<Subject> {
-      byDataCy(name: string, text: string): Chainable<JQuery>;
-    }
-  }
-}

cypress/support/index.js

@@ -1,19 +1 @@
 require('@mate-academy/cypress-tools/support');
-
-Cypress.Commands.add(
-  'byDataCy',
-  { prevSubject: 'optional' },
-
-  (subject, name, text = '') => {
-    const target = subject || cy;
-    const selector = `[data-cy="${name}"]`;
-
-    if (text) {
-      return target.contain(selector, text);
-    }
-
-    return subject
-      ? subject.find(selector)
-      : cy.get(selector);
-  },
-);

package.json

@@ -21,7 +21,7 @@
     "@cypress/webpack-dev-server": "^1.8.4",
     "@mate-academy/cypress-tools": "^1.0.5",
     "@mate-academy/eslint-config-react-typescript": "^1.0.5",
-    "@mate-academy/scripts": "^1.2.3",
+    "@mate-academy/scripts": "^1.2.8",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",
     "@types/node": "^17.0.23",

src/App.tsx

@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { useEffect, useState } from 'react';
 import 'bulma/bulma.sass';
 import '@fortawesome/fontawesome-free/css/all.css';
 import './App.scss';
@@ -9,37 +9,81 @@ import { PostDetails } from './components/PostDetails';
 import { UserSelector } from './components/UserSelector';
 import { Loader } from './components/Loader';
 
+import { User } from './types/User';
+import { Post } from './types/Post';
+
+import { getPosts } from './api/ApiMethods';
+
 export const App: React.FC = () => {
+  const [selectedUser, setSelectedUser] = useState<User | null>(null);
+  const [userPosts, setUserPosts] = useState<Post[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [hasError, setHasError] = useState(false);
+  const [isPostOpen, setIsPostOpen] = useState<Post | null>(null);
+  const [isFormOpen, setIsFormOpen] = useState(false);
+
+  useEffect(() => {
+    if (selectedUser) {
+      setLoading(true);
+      setHasError(false);
+
+      getPosts(selectedUser.id)
+        .then(posts => setUserPosts(posts))
+        .catch(() => setHasError(true))
+        .finally(() => setLoading(false));
+    }
+  }, [selectedUser]);
+
   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 />
+                <UserSelector
+                  setSelectedUser={setSelectedUser}
+                  selectedUser={selectedUser}
+                  setIsPostOpen={setIsPostOpen}
+                />
               </div>
 
-              <div className="block" data-cy="MainContent">
-                <p data-cy="NoSelectedUser">
-                  No user selected
-                </p>
-
+              {loading ? (
                 <Loader />
+              ) : (
+                <div className="block" data-cy="MainContent">
+                  {!selectedUser && (
+                    <p data-cy="NoSelectedUser">No user selected</p>
+                  )}
 
-                <div
-                  className="notification is-danger"
-                  data-cy="PostsLoadingError"
-                >
-                  Something went wrong!
-                </div>
+                  {hasError && (
+                    <div
+                      className="notification is-danger"
+                      data-cy="PostsLoadingError"
+                    >
+                      Something went wrong!
+                    </div>
+                  )}
 
-                <div className="notification is-warning" data-cy="NoPostsYet">
-                  No posts yet
-                </div>
+                  {userPosts.length === 0 && selectedUser && (
+                    <div
+                      className="notification is-warning"
+                      data-cy="NoPostsYet"
+                    >
+                      No posts yet
+                    </div>
+                  )}
 
-                <PostsList />
-              </div>
+                  {userPosts.length !== 0 && (
+                    <PostsList
+                      userPosts={userPosts}
+                      setIsPostOpen={setIsPostOpen}
+                      isPostOpen={isPostOpen}
+                      setIsFormOpen={setIsFormOpen}
+                    />
+                  )}
+                </div>
+              )}
             </div>
           </div>
 
@@ -50,12 +94,18 @@ export const App: React.FC = () => {
               'is-parent',
               'is-8-desktop',
               'Sidebar',
-              'Sidebar--open',
+              { 'Sidebar--open': isPostOpen },
             )}
           >
-            <div className="tile is-child box is-success ">
-              <PostDetails />
-            </div>
+            {isPostOpen && (
+              <div className="tile is-child box is-success ">
+                <PostDetails
+                  isPostOpen={isPostOpen}
+                  setIsFormOpen={setIsFormOpen}
+                  isFormOpen={isFormOpen}
+                />
+              </div>
+            )}
           </div>
         </div>
       </div>

src/api/ApiMethods.ts

@@ -0,0 +1,24 @@
+import { User } from '../types/User';
+import { Post } from '../types/Post';
+import { Comment } from '../types/Comment';
+import { client } from '../utils/fetchClient';
+
+export const getUsers = () => {
+  return client.get<User[]>('/users');
+};
+
+export const getPosts = (id: number) => {
+  return client.get<Post[]>(`/posts?userId=${id}`);
+};
+
+export const getComment = (id: number) => {
+  return client.get<Comment[]>(`/comments?postId=${id}`);
+};
+
+export const addComment = (data: Omit<Comment, 'id'>) => {
+  return client.post<Comment>('/comments', data);
+};
+
+export const deleteComment = (id: number) => {
+  return client.delete(`/comments/${id}`);
+};