final version

package.json

@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "@cypress/react18": "^2.0.1",
-    "@mate-academy/scripts": "^1.8.5",
+    "@mate-academy/scripts": "^1.9.12",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",
     "@types/node": "^20.14.10",

src/App.tsx

@@ -1,26 +1,167 @@
 /* eslint-disable max-len */
+/* eslint-disable jsx-a11y/label-has-associated-control */
 /* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
-import { UserWarning } from './UserWarning';
 
-const USER_ID = 0;
+import React, { useEffect, useState, useMemo } from 'react';
+import { Todo } from './types/Todo';
+import {
+  USER_ID,
+  addTodo,
+  deleteTodo,
+  getTodos,
+  updateTodo,
+} from './api/todos';
+import { ErrorStatus } from './types/ErrorStatus';
+import { Status } from './types/Status';
+import { Header } from './components/Header';
+import { Footer } from './components/Footer';
+import { ErrorNotification } from './components/ErrorNotification';
+import { TodoList } from './components/TodoList';
 
 export const App: React.FC = () => {
-  if (!USER_ID) {
-    return <UserWarning />;
-  }
+  const [todoList, setTodoList] = useState<Todo[]>([]);
+  const [error, setError] = useState<ErrorStatus>(ErrorStatus.Empty);
+  const [filter, setFilter] = useState<Status>(Status.All);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [loadingTodoIds, setLoadingTodoIds] = useState<number[]>([]);
+
+  useEffect(() => {
+    getTodos()
+      .then(setTodoList)
+      .catch(() => {
+        setError(ErrorStatus.UnableToLoad);
+      });
+  }, []);
+
+  const todosActiveNum = useMemo(
+    () => todoList.filter(todo => !todo.completed).length,
+    [todoList],
+  );
+
+  const todosCompletedNum = useMemo(
+    () => todoList.filter(todo => todo.completed).length,
+    [todoList],
+  );
+
+  const allTodosCompleted = useMemo(
+    () => todoList.length === todosCompletedNum,
+    [todoList],
+  );
+
+  const handleAddTodo = async (todoTitle: string) => {
+    setTempTodo({ id: 0, title: todoTitle, completed: false, userId: USER_ID });
+    try {
+      const newTodo = await addTodo({ title: todoTitle, completed: false });
+
+      setTodoList(prev => [...prev, newTodo]);
+    } catch (err) {
+      setError(ErrorStatus.UnableToAdd);
+      throw err;
+    } finally {
+      setTempTodo(null);
+    }
+  };
+
+  const handleRemoveTodo = async (todoId: number) => {
+    setLoadingTodoIds(prev => [...prev, todoId]);
+    try {
+      await deleteTodo(todoId);
+      setTodoList(prev => prev.filter(todo => todo.id !== todoId));
+    } catch (err) {
+      setError(ErrorStatus.UnableToDelete);
+    } finally {
+      setLoadingTodoIds(prev => prev.filter(id => id !== todoId));
+    }
+  };
+
+  const handleClearCompleted = async () => {
+    const completedTodos = todoList.filter(todo => todo.completed);
+
+    completedTodos.forEach(todo => {
+      handleRemoveTodo(todo.id);
+    });
+  };
+
+  const handleUpdatedTodo = async (todoToUpdate: Todo): Promise<void> => {
+    setLoadingTodoIds(prev => [...prev, todoToUpdate.id]);
+    try {
+      const updatedTodo = await updateTodo(todoToUpdate);
+
+      setTodoList(prev =>
+        prev.map(todoElem =>
+          todoElem.id === updatedTodo.id ? todoToUpdate : todoElem,
+        ),
+      );
+      // eslint-disable-next-line @typescript-eslint/no-shadow
+    } catch (error) {
+      setError(ErrorStatus.UnableToUpdate);
+      throw error;
+    } finally {
+      setLoadingTodoIds(prev => prev.filter(id => id !== todoToUpdate.id));
+    }
+  };
+
+  const handleToggleAll = async () => {
+    if (todosActiveNum > 0) {
+      const activeTodos = todoList.filter(todo => !todo.completed);
+
+      activeTodos.forEach(todo => {
+        handleUpdatedTodo({ ...todo, completed: true });
+      });
+    } else {
+      todoList.forEach(todo => {
+        handleUpdatedTodo({ ...todo, completed: false });
+      });
+    }
+  };
+
+  const filteredTodoList = (): Todo[] => {
+    switch (filter) {
+      case Status.Active:
+        return todoList.filter(todo => !todo.completed);
+      case Status.Completed:
+        return todoList.filter(todo => todo.completed);
+      default:
+        return todoList;
+    }
+  };
 
   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
+          onAddTodo={handleAddTodo}
+          setErrorMessage={setError}
+          todoLength={todoList.length}
+          todoList={todoList}
+          onToggleAll={handleToggleAll}
+          allTodosCompleted={allTodosCompleted}
+        />
+
+        {(!!todoList.length || tempTodo) && (
+          <>
+            <TodoList
+              filteredTodoList={filteredTodoList()}
+              loadingTodoIds={loadingTodoIds}
+              tempTodo={tempTodo}
+              handleRemoveTodo={handleRemoveTodo}
+              handleUpdatedTodo={handleUpdatedTodo}
+            />
+
+            <Footer
+              todosCounter={todosActiveNum}
+              filterStatus={filter}
+              setFilter={setFilter}
+              onClearCompleted={handleClearCompleted}
+              showClearCompletedButton={todoList.some(todo => todo.completed)}
+            />
+          </>
+        )}
+      </div>
+
+      <ErrorNotification error={error} setError={setError} />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 2138;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const addTodo = (newTodo: Omit<Todo, 'id' | 'userId'>) => {
+  return client.post<Todo>(`/todos`, { ...newTodo, userId: USER_ID });
+};
+
+export const deleteTodo = (todoId: number) => {
+  return client.delete(`/todos/${todoId}`);
+};
+
+export const updateTodo = (todo: Todo) => {
+  return client.patch<Todo>(`/todos/${todo.id}`, todo);
+};

src/components/ErrorNotification.tsx

@@ -0,0 +1,46 @@
+import React, { useEffect } from 'react';
+import { ErrorStatus } from '../types/ErrorStatus';
+import cn from 'classnames';
+
+type Props = {
+  error: string;
+  setError: React.Dispatch<React.SetStateAction<ErrorStatus>>;
+};
+
+export const ErrorNotification: React.FC<Props> = props => {
+  const { error, setError } = props;
+
+  useEffect(() => {
+    if (error === ErrorStatus.Empty) {
+      return;
+    }
+
+    const timerId = setTimeout(() => {
+      setError(ErrorStatus.Empty);
+    }, 3000);
+
+    return () => {
+      clearInterval(timerId);
+    };
+  }, [error, setError]);
+
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={cn(
+        'notification',
+        'is-danger',
+        'is-light has-text-weight-normal',
+        { hidden: !error },
+      )}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={() => setError(ErrorStatus.Empty)}
+      />
+      {error}
+    </div>
+  );
+};

src/components/Footer.tsx

@@ -0,0 +1,55 @@
+import React from 'react';
+import { Status } from '../types/Status';
+import cn from 'classnames';
+
+interface Props {
+  filterStatus: Status;
+  setFilter: (value: Status) => void;
+  todosCounter: number;
+  onClearCompleted: () => Promise<void>;
+  showClearCompletedButton: boolean;
+}
+
+export const Footer: React.FC<Props> = props => {
+  const {
+    setFilter,
+    filterStatus,
+    todosCounter,
+    onClearCompleted,
+    showClearCompletedButton,
+  } = props;
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {todosCounter} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {Object.values(Status).map(filter => (
+          <a
+            key={filter}
+            href={`#/${filter === Status.All ? '' : filter.toLowerCase()}`}
+            className={cn('filter__link', {
+              selected: filterStatus === filter,
+            })}
+            data-cy={`FilterLink${filter}`}
+            onClick={() => setFilter(filter)}
+          >
+            {filter}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        onClick={onClearCompleted}
+        disabled={!showClearCompletedButton}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};