solution1

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 +1,147 @@
-/* eslint-disable max-len */
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useEffect, useMemo, useState } from 'react';
 import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import {
+  addTodos,
+  deleteTodos,
+  getTodos,
+  updateTodos,
+  USER_ID,
+} from './api/todos';
+import { TodoHeader } from './components/TodoHeader';
+import { TodoFooter } from './components/TodoFooter';
+import { TodoList } from './components/TodoList';
+import { Todo } from './types/Todo';
+import { Filters } from './types/Filters';
+import { ErrorNotification } from './components/ErrorNotification';
+import { filterTodos } from './utils/filterTodos';
+import { ErrorType } from './types/ErrorType';
 
 export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorTodos, setErrorTodos] = useState<ErrorType>(ErrorType.Empty);
+  const [currentFilter, setCurrentFilter] = useState<Filters>(Filters.All);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [loadingTodosIds, setLoadingTodosIds] = useState<number[]>([]);
+
+  const filtered = useMemo(
+    () => filterTodos(todos, currentFilter),
+    [todos, currentFilter],
+  );
+
+  const activeTodos = useMemo(
+    () => todos.filter(todo => !todo.completed).length,
+    [todos],
+  );
+
+  const onAddTodo = async (todoTitle: string) => {
+    setTempTodo({ id: 0, title: todoTitle, completed: false, userId: USER_ID });
+    try {
+      const newTodo = await addTodos({ title: todoTitle, completed: false });
+
+      setTodos(prev => [...prev, newTodo]);
+    } catch (err) {
+      setErrorTodos(ErrorType.AddTodo);
+      throw err;
+    } finally {
+      setTempTodo(null);
+    }
+  };
+
+  const onDeleteTodo = async (todoId: number) => {
+    setLoadingTodosIds(prev => [...prev, todoId]);
+    try {
+      await deleteTodos(todoId);
+
+      setTodos(prev => prev.filter(todo => todo.id !== todoId));
+    } catch (err) {
+      setErrorTodos(ErrorType.DeleteTodo);
+      throw err;
+    } finally {
+      setLoadingTodosIds(prev => prev.filter(id => id !== todoId));
+    }
+  };
+
+  const onUpdateTodo = async (todoToUpdate: Todo) => {
+    setLoadingTodosIds(prev => [...prev, todoToUpdate.id]);
+    try {
+      const updatedTodo = await updateTodos(todoToUpdate);
+
+      setTodos(prev =>
+        prev.map(todo => (todo.id === updatedTodo.id ? updatedTodo : todo)),
+      );
+    } catch (err) {
+      setErrorTodos(ErrorType.UpdateTodo);
+      throw err;
+    } finally {
+      setLoadingTodosIds(prev => prev.filter(id => id !== todoToUpdate.id));
+    }
+  };
+
+  const onToggleAll = async () => {
+    if (activeTodos > 0) {
+      const thisTodos = todos.filter(todo => !todo.completed);
+
+      thisTodos.forEach(todo => {
+        onUpdateTodo({ ...todo, completed: true });
+      });
+    } else {
+      todos.forEach(todo => {
+        onUpdateTodo({ ...todo, completed: false });
+      });
+    }
+  };
+
+  const handleClearCompleted = async () => {
+    const completedTodos = todos.filter(todo => todo.completed);
+
+    completedTodos.forEach(todo => {
+      onDeleteTodo(todo.id);
+    });
+  };
+
+  useEffect(() => {
+    getTodos()
+      .then(data => setTodos(data))
+      .catch(() => setErrorTodos(ErrorType.LoadTodo));
+  }, []);
+
   if (!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">
+        <TodoHeader
+          onAddTodo={onAddTodo}
+          setErrorTodos={setErrorTodos}
+          onToggleAll={onToggleAll}
+          isAllCompleted={todos.every(todo => todo.completed)}
+        />
+
+        {todos.length > 0 && (
+          <>
+            <TodoList
+              todos={filtered}
+              onDeleteTodos={onDeleteTodo}
+              loadingTodosIds={loadingTodosIds}
+              onUpdateTodo={onUpdateTodo}
+              tempTodo={tempTodo}
+            />
+
+            <TodoFooter
+              todos={todos}
+              currentFilter={currentFilter}
+              setCurrentFilter={setCurrentFilter}
+              handleClearCompleted={handleClearCompleted}
+              activeTodos={activeTodos}
+            />
+          </>
+        )}
+      </div>
+      <ErrorNotification error={errorTodos} setError={setErrorTodos} />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 2183;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const addTodos = (newTodo: Omit<Todo, 'id' | 'userId'>) => {
+  return client.post<Todo>(`/todos`, { ...newTodo, userId: USER_ID });
+};
+
+export const deleteTodos = (todoId: number) => {
+  return client.delete(`/todos/${todoId}`);
+};
+
+export const updateTodos = (todo: Todo) => {
+  return client.patch<Todo>(`/todos/${todo.id}`, todo);
+};

src/components/ErrorNotification.tsx

@@ -0,0 +1,40 @@
+import React, { Dispatch, SetStateAction, useEffect } from 'react';
+import cn from 'classnames';
+import { ErrorType } from '../types/ErrorType';
+type Props = {
+  error: ErrorType;
+  setError: Dispatch<SetStateAction<ErrorType>>;
+};
+
+export const ErrorNotification: React.FC<Props> = props => {
+  const { error, setError } = props;
+
+  useEffect(() => {
+    if (error === ErrorType.Empty) {
+      return;
+    }
+
+    const timer = setTimeout(() => {
+      setError(ErrorType.Empty);
+    }, 3000);
+
+    return () => clearTimeout(timer);
+  }, [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(ErrorType.Empty)}
+      />
+      {error}
+    </div>
+  );
+};

src/components/TodoFooter.tsx

@@ -0,0 +1,73 @@
+import React, { Dispatch, SetStateAction } from 'react';
+import { Todo } from '../types/Todo';
+import { Filters } from '../types/Filters';
+import cn from 'classnames';
+
+type Props = {
+  currentFilter: Filters;
+  setCurrentFilter: Dispatch<SetStateAction<Filters>>;
+  todos: Todo[];
+  handleClearCompleted: () => Promise<void>;
+  activeTodos: number;
+};
+
+const filters = [
+  { name: 'All', href: '#/', filter: Filters.All, dataCy: 'FilterLinkAll' },
+  {
+    name: 'Active',
+    href: '#/active',
+    filter: Filters.Active,
+    dataCy: 'FilterLinkActive',
+  },
+  {
+    name: 'Completed',
+    href: '#/completed',
+    filter: Filters.Completed,
+    dataCy: 'FilterLinkCompleted',
+  },
+];
+
+export const TodoFooter: React.FC<Props> = props => {
+  const {
+    todos,
+    handleClearCompleted,
+    currentFilter,
+    setCurrentFilter,
+    activeTodos,
+  } = props;
+  // const activeTodos = todos.filter(todo => !todo.completed);
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {activeTodos} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {filters.map(({ name, href, filter, dataCy }) => (
+          <a
+            key={filter}
+            href={href}
+            className={cn('filter__link', {
+              selected: currentFilter === filter,
+            })}
+            data-cy={dataCy}
+            onClick={() => setCurrentFilter(filter)}
+          >
+            {name}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={todos.every(todo => !todo.completed)}
+        onClick={handleClearCompleted}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};