react_dynamic_list-of-posts

.env

@@ -1 +1,6 @@
 ESLINT_NO_DEV_ERRORS=true
+
+REACT_APP_URL_USERS = /users
+REACT_APP_POSTS_BY_USER = /posts?userId=
+REACT_APP_COMMENTS_BY_POST= /comments?postId=
+REACT_APP_COMMENTS_DELETE = /comments/

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

@@ -1,62 +1,172 @@
-import React from 'react';
+import React, { useCallback, useEffect, useState } from 'react';
 import 'bulma/bulma.sass';
 import '@fortawesome/fontawesome-free/css/all.css';
 import './App.scss';
 
-import classNames from 'classnames';
+import { MemoSidebar } from './components/Sidebar';
 import { PostsList } from './components/PostsList';
-import { PostDetails } from './components/PostDetails';
-import { UserSelector } from './components/UserSelector';
+import { MemoUserSelector } from './components/UserSelector';
+import { NotificationMessage } from './components/NotificationMessage';
 import { Loader } from './components/Loader';
 
+import { client } from './utils/fetchClient';
+
+import { User } from './types/User';
+import { Post } from './types/Post';
+import { Notification } from './types/Notification';
+
+if (!process.env.REACT_APP_URL_USERS) {
+  throw new Error('Users Key in not defined');
+}
+
+if (!process.env.REACT_APP_POSTS_BY_USER) {
+  throw new Error('User posts in not defined');
+}
+
+const URL_GET_USERS = process.env.REACT_APP_URL_USERS;
+const URL_GET_POSTS = process.env.REACT_APP_POSTS_BY_USER;
+
 export const App: React.FC = () => {
+  const [users, setUsers] = useState<User[]>([]);
+  const [posts, setPosts] = useState<Post[]>([]);
+  const [selectedUser, setSelectedUser] = useState<User | null>(null);
+  const [selectedPost, setSelectedPost] = useState<Post | null>(null);
+  const [isLoading, setIsLoading] = useState<boolean>(false);
+  const [isError, setIsError] = useState<boolean>(true);
+  const [notificationData, setNotificationData]
+    = useState<Notification | null>(null);
+
+  // #region Load-users
+
+  useEffect(() => {
+    client.get<User[]>(URL_GET_USERS)
+      .then(receivedUsers => {
+        const trimmedUsers = receivedUsers.slice(0, 25);
+
+        setUsers(trimmedUsers);
+      })
+      .catch(() => {
+        throw new Error('Something wrong');
+      });
+  }, []);
+
+  // #endregion
+
+  // #region Select-user
+  const onUserSelect = useCallback((userSelected: User) => {
+    setSelectedUser(userSelected);
+    setSelectedPost(null);
+  }, []);
+  // #endregion
+
+  // #region Load-posts
+
+  const handlerLoadedPosts = (receivedPosts: Post[], hasError = false) => {
+    if (hasError) {
+      const errorMessageData: Notification = {
+        typeNotification: 'danger',
+        text: 'Error loading posts',
+        dataCypress: 'PostsLoadingError',
+      };
+
+      setIsError(true);
+      setNotificationData(errorMessageData);
+
+      return;
+    }
+
+    if (receivedPosts.length === 0 && !hasError) {
+      const errorMessageData: Notification = {
+        typeNotification: 'warning',
+        text: 'No posts yet',
+        dataCypress: 'NoPostsYet',
+      };
+
+      setIsError(true);
+      setNotificationData(errorMessageData);
+
+      return;
+    }
+
+    setIsError(false);
+    setPosts(receivedPosts);
+  };
+
+  useEffect(() => {
+    if (selectedUser) {
+      setIsError(false);
+      setIsLoading(true);
+      client.get<Post[]>(URL_GET_POSTS + selectedUser.id)
+        .then((downloadedPosts) => {
+          handlerLoadedPosts(downloadedPosts, false);
+        })
+        .catch(() => handlerLoadedPosts(posts, true))
+        .finally(() => setIsLoading(false));
+    }
+  }, [selectedUser]);
+
+  // #endregion
+
+  // #region Select-post
+  const onSelectPost = (post: Post) => {
+    if (selectedPost) {
+      if (selectedPost.id === post.id) {
+        setSelectedPost(null);
+
+        return;
+      }
+    }
+
+    setSelectedPost(post);
+  };
+
+  // #endregion
+
   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 />
+                <MemoUserSelector
+                  users={users}
+                  selectedUser={selectedUser}
+                  onUserSelect={onUserSelect}
+                />
               </div>
 
               <div className="block" data-cy="MainContent">
-                <p data-cy="NoSelectedUser">
-                  No user selected
-                </p>
 
-                <Loader />
+                {!selectedUser && (
+                  <p data-cy="NoSelectedUser">
+                    No user selected
+                  </p>
+                )}
+                {isLoading && (
+                  <Loader />
+                )}
 
-                <div
-                  className="notification is-danger"
-                  data-cy="PostsLoadingError"
-                >
-                  Something went wrong!
-                </div>
+                {isError && notificationData && (
+                  <NotificationMessage
+                    data={notificationData}
+                  />
+                )}
 
-                <div className="notification is-warning" data-cy="NoPostsYet">
-                  No posts yet
-                </div>
+                {posts.length > 0 && !isError && !isLoading && (
+                  <PostsList
+                    posts={posts}
+                    onSelectPost={onSelectPost}
+                  />
+                )}
 
-                <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>
-          </div>
+          <MemoSidebar
+            selectedPost={selectedPost}
+          />
         </div>
       </div>
     </main>