add task solution #1220

shymdima · 2025-01-14T10:07:28Z

No description provided.

mateacademy-ai-mentor

Thank you for your hard work on this project! 😊 While your code is well-structured and mostly meets the task requirements, there are a few critical issues that need to be addressed before we can approve the pull request:

Error Handling: There is a lack of comprehensive error handling for API requests and user actions like adding or deleting comments. Implementing a retry mechanism and user-friendly error notifications is crucial for a better user experience.
PropTypes: The absence of propTypes in your components means there's no type checking for props, which is essential for maintaining code quality and preventing bugs.
Direct DOM Manipulation: The use of document.addEventListener and document.removeEventListener in the UserSelector component should be refactored to utilize React's event handling to align with best practices.
Key Generation: Generating keys using the index in the map function can lead to issues. Ensure that a unique identifier from the data is used instead.
State Initialization: Ensure that all expected keys in the isLoading and showError states are initialized to prevent undefined errors.

Please address these issues to enhance the functionality and maintainability of your code. Once resolved, feel free to resubmit for review. Keep up the great work, and I'm confident you'll nail it! 🚀

✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨

🔄 Fix the issues, commit the changes, and then re-request my review using the Re-request review button in the Reviewers tab.

mateacademy-ai-mentor · 2025-01-14T10:11:17Z

src/App.tsx

+  const [usersFromServer, setUsersFromServer] = useState<User[]>([]);
+  const [commentsForPost, setCommentsForPost] = useState<Comment[]>([]);
+  const [postsForUser, setPostsForUser] = useState<Post[]>([]);
+  const [isLoading, setIsLoading] = useState<IsLoading>({});


The initial state for isLoading is set as an empty object. Ensure that all expected keys (e.g., postListLoading, PostDetailsLoading) are initialized to false to avoid potential undefined errors when accessing these properties.

mateacademy-ai-mentor · 2025-01-14T10:11:17Z

src/App.tsx

+  const [commentsForPost, setCommentsForPost] = useState<Comment[]>([]);
+  const [postsForUser, setPostsForUser] = useState<Post[]>([]);
+  const [isLoading, setIsLoading] = useState<IsLoading>({});
+  const [showError, setShowError] = useState<ShowError>({});


Similar to isLoading, the initial state for showError is set as an empty object. Consider initializing all expected error keys (e.g., usersError, PostsLoadingError, PostDetailsError) to false to prevent undefined errors.

mateacademy-ai-mentor · 2025-01-14T10:11:17Z

src/App.tsx

+          setPostSelected(null);
+          setPostsForUser(posts);
+        })
+        .catch(() => handleSetError('PostsLoadingError', true))


The error key 'PostsLoadingError' in handleSetError should match the key used in the renderError function. Ensure consistency in naming to avoid errors in error rendering.

mateacademy-ai-mentor · 2025-01-14T10:11:17Z

src/App.tsx

+      setIsLoading((prev) => ({ ...prev, PostDetailsLoading: true }));
+      getCommentsForPost(postSelected.id)
+        .then(setCommentsForPost)
+        .catch(() => handleSetError('PostDetailsError', true))


The error key 'PostDetailsError' in handleSetError should match the key used in the renderError function. Ensure consistency in naming to avoid errors in error rendering.

mateacademy-ai-mentor · 2025-01-14T10:11:17Z

src/App.tsx

+              {postSelected && (
+                <PostDetails
+                  postSelected={postSelected}
+                  PostDetailsLoading={isLoading.PostDetailsLoading}


Ensure that isLoading.PostDetailsLoading is correctly initialized and updated. If the key is not initialized in the state, it might lead to undefined errors.

mateacademy-ai-mentor · 2025-01-14T10:11:20Z

src/types/AppErrors.ts

@@ -0,0 +1,5 @@
+export interface ShowError {
+    postListError?: boolean;
+    PostDetailsError?: boolean;


Ensure that the naming of PostDetailsError is consistent with how errors are referenced in the application. Consistency in naming helps avoid confusion and potential errors.

mateacademy-ai-mentor · 2025-01-14T10:11:20Z

src/types/AppErrors.ts

+export interface ShowError {
+    postListError?: boolean;
+    PostDetailsError?: boolean;
+    usersError?: boolean;


Ensure that the naming of usersError is consistent with how errors are referenced in the application. Consistency in naming helps avoid confusion and potential errors.

mateacademy-ai-mentor · 2025-01-14T10:11:20Z

src/types/Loading.ts

@@ -0,0 +1,5 @@
+export interface IsLoading {
+     postListLoading?: boolean; 


Ensure that the naming of postListLoading is consistent with how loading states are referenced in the application. Consistency in naming helps avoid confusion and potential errors.

mateacademy-ai-mentor · 2025-01-14T10:11:21Z

src/types/Loading.ts

@@ -0,0 +1,5 @@
+export interface IsLoading {
+     postListLoading?: boolean; 
+     PostDetailsLoading?: boolean; 


Ensure that the naming of PostDetailsLoading is consistent with how loading states are referenced in the application. Consistency in naming helps avoid confusion and potential errors.

mateacademy-ai-mentor · 2025-01-14T10:11:21Z

src/types/Loading.ts

+export interface IsLoading {
+     postListLoading?: boolean; 
+     PostDetailsLoading?: boolean; 
+     usersLoading?: boolean 


Ensure that the naming of usersLoading is consistent with how loading states are referenced in the application. Consistency in naming helps avoid confusion and potential errors.

mateacademy-ai-mentor

Your code demonstrates a solid understanding of React and its components, with many aspects implemented correctly, such as state management, key generation, and conditional rendering. However, there are several areas for improvement that you should address to enhance the functionality and maintainability of your application:

Error Handling: While basic error handling is in place, consider providing more detailed error messages or implementing retry mechanisms for API requests, especially for comment loading and deletion. This will improve the user experience significantly.
PropTypes: Ensure that propTypes are defined for all components to maintain type safety and prevent potential bugs.
Direct DOM Manipulation: Refactor the handleClickOutside logic in the UserSelector component to use React's event handling system instead of window.addEventListener. This aligns with React best practices.
Accessibility: Improve accessibility by adding ARIA attributes where necessary, such as aria-selected for active users.
Code Clarity: Consider adding comments to explain the purpose of certain variables, like the condition variable, to aid future maintainers.
Validation: Enhance form validation by adding checks for email format and ensuring the loading state is reset if validation fails.

These improvements will not only enhance the user experience but also ensure your code is robust and maintainable. Keep up the great work and continue to refine your skills! 😊

✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨

mateacademy-ai-mentor · 2025-01-14T11:15:37Z

src/App.tsx

+  const [userSelected, setUserSelected] = useState<User | null>(null);
+  const [postSelected, setPostSelected] = useState<Post | null>(null);
+  const [usersFromServer, setUsersFromServer] = useState<User[]>([]);
+  const [commentsForPost, setCommentsForPost] = useState<Comment[]>([]);
+  const [postsForUser, setPostsForUser] = useState<Post[]>([]);
+  const [isLoading, setIsLoading] = useState<IsLoading>({
+    postListLoading: false,
+    PostDetailsLoading: false,
+    usersLoading: false,
+  });

-            <div className="block" data-cy="MainContent">
-              <p data-cy="NoSelectedUser">No user selected</p>
+  const [showError, setShowError] = useState<ShowError>({
+    usersError: false,
+    PostsLoadingError: false,
+    PostDetailsError: false,
+  });


The state initialization for isLoading and showError is correctly done, ensuring that all expected keys are initialized. This prevents potential undefined errors.

mateacademy-ai-mentor · 2025-01-14T11:15:37Z

src/App.tsx

+    getUsers()
+      .then(setUsersFromServer)
+      .catch(() => setShowError(prev => ({ ...prev, usersError: true })));


Consider implementing a retry mechanism or providing more detailed error messages to improve user experience when fetching users fails.

mateacademy-ai-mentor · 2025-01-14T11:15:37Z

src/App.tsx

+      getPostsForUser(userSelected.id)
+        .then(posts => {
+          setPostSelected(null);
+          setPostsForUser(posts);
+        })
+        .catch(() =>
+          setShowError(prev => ({ ...prev, PostsLoadingError: true })),
+        )
+        .finally(() =>
+          setIsLoading(prev => ({ ...prev, postListLoading: false })),
+        );


Similar to the previous comment, consider enhancing error handling for fetching posts by implementing retries or more informative error messages.

mateacademy-ai-mentor · 2025-01-14T11:15:37Z

src/App.tsx

+      getCommentsForPost(postSelected.id)
+        .then(setCommentsForPost)
+        .catch(() =>
+          setShowError(prev => ({ ...prev, PostDetailsError: true })),
+        )
+        .finally(() =>
+          setIsLoading(prev => ({ ...prev, PostDetailsLoading: false })),
+        );


Again, consider improving error handling for fetching comments with retries or more user-friendly error notifications.

mateacademy-ai-mentor · 2025-01-14T11:15:37Z

src/App.tsx

+  const renderError = (errorKey: keyof ShowError) =>
+    showError[errorKey] && (
+      <div className="notification is-danger" data-cy={`${errorKey}`}>
+        Something went wrong!
+      </div>
+    );


The renderError function is a good approach to handle error display. Ensure that the error messages are informative for the user.

mateacademy-ai-mentor · 2025-01-14T11:15:39Z

src/components/PostListElement.tsx

+      <button
+        type="button"
+        data-cy="PostButton"
+        className={classNames("button is-link", {"is-light": condition})}


The use of classNames to conditionally apply the 'is-light' class is correct and helps in managing the button's appearance based on the condition.

mateacademy-ai-mentor · 2025-01-14T11:15:39Z

src/components/PostsList.tsx

+      {postsForUser.length === 0 ? (
+        <div className="notification is-warning" data-cy="NoPostsYet">
+          No posts yet
+        </div>


The conditional rendering for displaying a notification when there are no posts is correctly implemented and provides a clear user message.

mateacademy-ai-mentor · 2025-01-14T11:15:39Z

src/components/PostsList.tsx

+              {postsForUser.map((post) => (
+                <PostListElement
+                  post={post}
+                  key={post.id}
+                  setPostSelected={setPostSelected}
+                  isLight={isLight}
+                  setIsLight={setIsLight}
+                />
+              ))}


The use of post.id as a key in the map function is appropriate, ensuring each post element has a unique identifier.

mateacademy-ai-mentor · 2025-01-14T11:15:40Z

src/components/UserSelector.tsx

+  useEffect(() => {
+    window.addEventListener('click', handleClickOutside);
+
+    return () => {
+      window.removeEventListener('click', handleClickOutside);
+    };
+  }, []);


Consider refactoring the handleClickOutside logic to use React's event handling system instead of directly manipulating the DOM with window.addEventListener. This aligns with React best practices and ensures better integration with the component lifecycle.

mateacademy-ai-mentor · 2025-01-14T11:15:40Z

src/components/UserSelector.tsx

      <div className="dropdown-trigger">
        <button
          type="button"
          className="button"
          aria-haspopup="true"
          aria-controls="dropdown-menu"
+          onClick={() => setShowUsers(prev => !prev)}


The toggle logic for showing users is correctly implemented, providing a clear user interaction for opening and closing the dropdown.

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mateacademy-ai-mentor suggested changes Jan 14, 2025

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shymdima requested a review from mateacademy-ai-mentor January 14, 2025 11:12

mateacademy-ai-mentor approved these changes Jan 14, 2025

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add task solution #1220

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		@@ -0,0 +1,5 @@
		export interface IsLoading {
		postListLoading?: boolean;

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