Develop

README.md

@@ -47,4 +47,4 @@ Implement the ability to edit a todo title on double click:
 
 - Implement a solution following the [React task guideline](https://github.com/mate-academy/react_task-guideline#react-tasks-guideline).
 - Use the [React TypeScript cheat sheet](https://mate-academy.github.io/fe-program/js/extra/react-typescript).
-- Replace `<your_account>` with your Github username in the [DEMO LINK](https://<your_account>.github.io/react_todo-app-with-api/) and add it to the PR description.
+- Replace `<your_account>` with your Github username in the [DEMO LINK](https://chumachenkoUA.github.io/react_todo-app-with-api/) and add it to the PR description.

package.json

@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "@cypress/react18": "^2.0.1",
-    "@mate-academy/scripts": "^1.8.5",
+    "@mate-academy/scripts": "^2.1.3",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",
     "@types/node": "^20.14.10",

src/App.tsx

@@ -1,26 +1,248 @@
-/* eslint-disable max-len */
 /* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useEffect, useRef, useState } from 'react';
+import * as postService from './api/todos';
 import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import { Todo } from './types/Todo';
+import { Header } from './components/Header';
+import { Footer } from './components/Footer';
+import { ErrorMessage } from './types/ErrorMessage';
+import { Filter } from './types/Filter';
+import { TodoList } from './components/TodoList';
+import { ErrorNotification } from './components/ErrorNotification';
 
 export const App: React.FC = () => {
-  if (!USER_ID) {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMessage, setErrorMessage] = useState<ErrorMessage | null>(null);
+  const [filter, setFilter] = useState<Filter>(Filter.All);
+  const [isSubmitting, setIsSubmitting] = useState<boolean>(false);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [title, setTitle] = useState('');
+  const [deletingTodoIds, setDeletingTodoIds] = useState<number[]>([]);
+  const [updatingTodoIds, setUpdatingTodoIds] = useState<number[]>([]);
+
+  const activeTodos = todos.filter(todo => !todo.completed);
+  const activeTodosCount = activeTodos.length;
+  const completedTodosCount = todos.length - activeTodosCount;
+  const allTodosCompleted = activeTodosCount === 0 && todos.length !== 0;
+
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  const loadTodos = async () => {
+    try {
+      const todosFromServer = await postService.getTodos();
+
+      setTodos(todosFromServer);
+    } catch {
+      setErrorMessage(ErrorMessage.LoadTodos);
+    }
+  };
+
+  const filteredTodos = todos.filter((todo: Todo) => {
+    if (filter === Filter.Active) {
+      return !todo.completed;
+    }
+
+    if (filter === Filter.Completed) {
+      return todo.completed;
+    }
+
+    return true;
+  });
+
+  const onFilterChange = (value: Filter) => {
+    setFilter(value);
+  };
+
+  const onTitleChange = (newTitle: string) => {
+    setTitle(newTitle);
+  };
+
+  const handleErrorClose = () => {
+    setErrorMessage(null);
+  };
+
+  const deleteTodo = async (todoId: number) => {
+    setErrorMessage(null);
+
+    try {
+      setDeletingTodoIds(prev => [...prev, todoId]);
+      await postService.deleteTodo(todoId);
+      setTodos(prev => prev.filter(todo => todo.id !== todoId));
+    } finally {
+      setDeletingTodoIds(prev => prev.filter(id => id !== todoId));
+    }
+  };
+
+  const handleDeleteOneTodo = async (todoId: number) => {
+    setErrorMessage(null);
+
+    try {
+      await deleteTodo(todoId);
+    } catch {
+      setErrorMessage(ErrorMessage.DeleteTodo);
+      throw new Error();
+    }
+  };
+
+  const handleClearCompleted = async () => {
+    setErrorMessage(null);
+
+    const completeTodoIds = todos
+      .filter(completedTodo => completedTodo.completed)
+      .map(completedTodo => completedTodo.id);
+
+    const results = await Promise.allSettled(
+      completeTodoIds.map(id => deleteTodo(id)),
+    );
+
+    const hasRejected = results.some(result => result.status === 'rejected');
+
+    if (hasRejected) {
+      setErrorMessage(ErrorMessage.DeleteTodo);
+    }
+  };
+
+  const addTodo = async (newTitle: string) => {
+    setErrorMessage(null);
+
+    const clearTitle = newTitle.trim();
+
+    if (clearTitle.length === 0) {
+      setErrorMessage(ErrorMessage.EmptyTitle);
+
+      return;
+    }
+
+    const temporaryTodo: Todo = {
+      id: 0,
+      userId: postService.USER_ID,
+      title: clearTitle,
+      completed: false,
+    };
+
+    try {
+      setIsSubmitting(true);
+      setTempTodo(temporaryTodo);
+      const newTodo = await postService.createTodo(clearTitle);
+
+      setTodos(prev => [...prev, newTodo]);
+      setTitle('');
+    } catch {
+      setErrorMessage(ErrorMessage.AddTodo);
+    } finally {
+      setIsSubmitting(false);
+      setTempTodo(null);
+    }
+  };
+
+  const updateTodo = async (
+    todoId: number,
+    newTitle: string,
+    completed: boolean,
+  ) => {
+    setErrorMessage(null);
+    setUpdatingTodoIds(prev => [...prev, todoId]);
+    try {
+      const updatedTodo = await postService.updateTodo(
+        todoId,
+        newTitle,
+        completed,
+      );
+
+      setTodos(prev =>
+        prev.map(todo => (todo.id === todoId ? updatedTodo : todo)),
+      );
+    } catch {
+      setErrorMessage(ErrorMessage.UpdateTodo);
+      throw new Error();
+    } finally {
+      setUpdatingTodoIds(prev => prev.filter(id => id !== todoId));
+    }
+  };
+
+  const handleToggleAll = async () => {
+    setErrorMessage(null);
+    const newCompletedStatus = !allTodosCompleted;
+    const futureUpdatedTodos = todos.filter(
+      todo => todo.completed !== newCompletedStatus,
+    );
+
+    const results = await Promise.allSettled(
+      futureUpdatedTodos.map(todo =>
+        updateTodo(todo.id, todo.title, newCompletedStatus),
+      ),
+    );
+    const hasRejected = results.some(result => result.status === 'rejected');
+
+    if (hasRejected) {
+      setErrorMessage(ErrorMessage.UpdateTodo);
+    }
+  };
+
+  useEffect(() => {
+    if (!isSubmitting && deletingTodoIds.length === 0) {
+      inputRef.current?.focus();
+    }
+  }, [isSubmitting, deletingTodoIds]);
+
+  useEffect(() => {
+    loadTodos();
+  }, []);
+
+  useEffect(() => {
+    if (!errorMessage) {
+      return;
+    }
+
+    const timer = setTimeout(() => setErrorMessage(null), 3000);
+
+    return () => clearTimeout(timer);
+  }, [errorMessage]);
+
+  if (!postService.USER_ID) {
     return <UserWarning />;
   }
 
   return (
-    <section className="section container">
-      <p className="title is-4">
-        Copy all you need from the prev task:
-        <br />
-        <a href="https://github.com/mate-academy/react_todo-app-add-and-delete#react-todo-app-add-and-delete">
-          React Todo App - Add and Delete
-        </a>
-      </p>
-
-      <p className="subtitle">Styles are already copied</p>
-    </section>
+    <div className="todoapp">
+      <h1 className="todoapp__title">todos</h1>
+
+      <div className="todoapp__content">
+        <Header
+          allTodosCompleted={allTodosCompleted}
+          title={title}
+          onTitleChange={onTitleChange}
+          addTodo={addTodo}
+          isSubmitting={isSubmitting}
+          inputRef={inputRef}
+          handleToggleAll={handleToggleAll}
+          hasTodos={todos.length > 0}
+        />
+
+        <TodoList
+          visibleTodos={filteredTodos}
+          tempTodo={tempTodo}
+          handleDeleteTodo={handleDeleteOneTodo}
+          deletingTodoIds={deletingTodoIds}
+          updatingTodoIds={updatingTodoIds}
+          updateTodo={updateTodo}
+        />
+
+        {todos.length !== 0 && (
+          <Footer
+            activeTodosCount={activeTodosCount}
+            completedTodosCount={completedTodosCount}
+            filter={filter}
+            onFilterChange={onFilterChange}
+            handleClearCompleted={handleClearCompleted}
+          />
+        )}
+      </div>
+
+      <ErrorNotification
+        errorMessage={errorMessage}
+        onClose={handleErrorClose}
+      />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,28 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 4058;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const createTodo = (title: string) => {
+  return client.post<Todo>('/todos', {
+    userId: USER_ID,
+    title,
+    completed: false,
+  });
+};
+
+export const updateTodo = (id: number, title: string, completed: boolean) => {
+  return client.patch<Todo>(`/todos/${id}`, {
+    userId: USER_ID,
+    title,
+    completed,
+  });
+};
+
+export const deleteTodo = (id: number) => {
+  return client.delete(`/todos/${id}`);
+};

src/components/ErrorNotification/ErrorNotification.tsx

@@ -0,0 +1,35 @@
+import React from 'react';
+import cn from 'classnames';
+import { ErrorMessage } from '../../types/ErrorMessage';
+
+type Props = {
+  errorMessage: ErrorMessage | null;
+  onClose: () => void;
+};
+
+export const ErrorNotification: React.FC<Props> = ({
+  errorMessage,
+  onClose,
+}) => {
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={cn(
+        'notification',
+        'is-danger',
+        'is-light',
+        'has-text-weight-normal',
+        { hidden: !errorMessage },
+      )}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={onClose}
+      />
+      {/* show only one message at a time */}
+      {errorMessage}
+    </div>
+  );
+};

src/components/ErrorNotification/index.ts

@@ -0,0 +1 @@
+export * from './ErrorNotification';