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src/App.tsx

@@ -8,53 +8,122 @@ import { PostsList } from './components/PostsList';
 import { PostDetails } from './components/PostDetails';
 import { UserSelector } from './components/UserSelector';
 import { Loader } from './components/Loader';
+import { useEffect, useState } from 'react';
+import { User } from './types/User';
+import { Post } from './types/Post';
+import * as userService from './api/users';
+import * as postService from './api/posts';
 
-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 [selectedUser, setSelectedUser] = useState<User | null>(null);
 
-            <div className="block" data-cy="MainContent">
-              <p data-cy="NoSelectedUser">No user selected</p>
+  const [userPosts, setUserPosts] = useState<Post[]>([]);
+  const [selectedPost, setSelectedPost] = useState<Post | null>(null);
 
-              <Loader />
+  const [isLoadingPosts, setIsLoadingPosts] = useState(false);
+  const [hasError, setHasError] = useState(false);
+  const [hasWarning, setHasWarning] = useState(false);
 
-              <div
-                className="notification is-danger"
-                data-cy="PostsLoadingError"
-              >
-                Something went wrong!
-              </div>
+  useEffect(() => {
+    setHasError(false);
+
+    userService
+      .getUsers()
+      .then(setUsers)
+      .catch(() => setHasError(true));
+  }, []);
 
-              <div className="notification is-warning" data-cy="NoPostsYet">
-                No posts yet
+  useEffect(() => {
+    if (selectedUser) {
+      setIsLoadingPosts(true);
+      setHasError(false);
+      setHasWarning(false);
+      setUserPosts([]);
+      setSelectedPost(null);
+
+      postService
+        .getPosts(selectedUser.id)
+        .then(posts => {
+          if (posts.length > 0) {
+            setUserPosts(posts);
+          } else {
+            setHasWarning(true);
+          }
+        })
+        .catch(() => setHasError(true))
+        .finally(() => setIsLoadingPosts(false));
+    }
+  }, [selectedUser]);
+
+  return (
+    <main className="section">
+      <div className="container">
+        <div className="tile is-ancestor columns">
+          <div className="tile is-parent column">
+            <div className="tile is-child box is-success">
+              <div className="block">
+                {users && (
+                  <UserSelector
+                    users={users}
+                    selectedUser={selectedUser}
+                    onSelectUser={setSelectedUser}
+                  />
+                )}
               </div>
 
-              <PostsList />
+              <div className="block" data-cy="MainContent">
+                {!selectedUser && (
+                  <p data-cy="NoSelectedUser">No user selected</p>
+                )}
+
+                {isLoadingPosts && <Loader />}
+
+                {hasError && (
+                  <div
+                    className="notification is-danger"
+                    data-cy="PostsLoadingError"
+                  >
+                    Something went wrong!
+                  </div>
+                )}
+
+                {!hasError && hasWarning && (
+                  <div className="notification is-warning" data-cy="NoPostsYet">
+                    No posts yet
+                  </div>
+                )}
+
+                {!hasError && !!userPosts.length && (
+                  <PostsList
+                    posts={userPosts}
+                    selectedPost={selectedPost}
+                    onSelect={setSelectedPost}
+                  />
+                )}
+              </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',
+              'column',
+              'Sidebar',
+              {
+                'Sidebar--open': selectedPost !== null,
+              },
+            )}
+          >
+            <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 +1,14 @@
+import { Comment } from '../types/Comment';
+import { client } from '../utils/fetchClient';
+
+export function getComments(postId: number) {
+  return client.get<Comment[]>(`/comments?postId=${postId}`);
+}
+
+export function deleteComment(commentId: number) {
+  return client.delete(`/comments/${commentId}`);
+}
+
+export function postComment(data: Omit<Comment, 'id'>) {
+  return client.post<Comment>(`/comments`, data);
+}

src/api/posts.ts

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

src/api/users.ts

@@ -0,0 +1,6 @@
+import { User } from '../types/User';
+import { client } from '../utils/fetchClient';
+
+export function getUsers() {
+  return client.get<User[]>('/users');
+}

src/components/CommentInfo.tsx

@@ -0,0 +1,44 @@
+import React, { useState } from 'react';
+import { Comment } from '../types/Comment';
+import classNames from 'classnames';
+
+type Props = {
+  comment: Comment;
+  onDelete: (commentId: number) => Promise<void>;
+};
+
+export const CommentInfo: React.FC<Props> = ({ comment, onDelete }) => {
+  const [deletingCommentId, setDeletingCommentId] = useState<number | null>(
+    null,
+  );
+  const { id, name, email, body } = comment;
+
+  const handleDelete = (commentId: number) => {
+    setDeletingCommentId(commentId);
+
+    onDelete(commentId).finally(() => setDeletingCommentId(null));
+  };
+
+  return (
+    <article className="message is-small" data-cy="Comment">
+      <div className="message-header">
+        <a href={`mailto:${email}`} data-cy="CommentAuthor">
+          {name}
+        </a>
+        <button
+          data-cy="CommentDelete"
+          type="button"
+          className={classNames('button delete is-small', {
+            'is-loading': deletingCommentId === id,
+          })}
+          aria-label="delete"
+          onClick={() => handleDelete(id)}
+        ></button>
+      </div>
+
+      <div className="message-body" data-cy="CommentBody">
+        {body}
+      </div>
+    </article>
+  );
+};