add task solution

README.md

@@ -10,6 +10,7 @@ and implement the ability to toggle and rename todos.
 ## Toggling a todo status
 
 Toggle the `completed` status on `TodoStatus` change:
+
 - Install Prettier Extention and use this [VSCode settings](https://mate-academy.github.io/fe-program/tools/vscode/settings.json) to enable format on save.
 - covered the todo with a loader overlay while waiting for API response;
 - the status should be changed on success;
@@ -38,6 +39,7 @@ Implement the ability to edit a todo title on double click:
 - or the deletion error message if we tried to delete the todo.
 
 ## If you want to enable tests
+
 - open `cypress/integration/page.spec.js`
 - replace `describe.skip` with `describe` for the root `describe`
 
@@ -47,4 +49,4 @@ 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://Welbrn.github.io/react_todo-app-with-api/) and add it to the PR description.

src/App.tsx

@@ -1,26 +1,203 @@
 /* eslint-disable max-len */
 /* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+/* eslint-disable jsx-a11y/label-has-associated-control */
+import React, { useEffect, useState } from 'react';
 import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import {
+  addTodos,
+  deleteTodos,
+  getTodos,
+  updateTodos,
+  USER_ID,
+} from './api/todos';
+import { Todo } from './types/Todo';
+import { Filter } from './types/Filter';
+import { Header } from './components/Header/Header';
+import { TodoList } from './components/TodoList/TodoList';
+import { Footer } from './components/Footer/Footer';
+import { ErrorNotification } from './components/ErrorNotification/ErrorNotification';
+import { filterTodos } from './utils/getFilteredTodos';
 
 export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMessage, setErrorMessage] = useState('');
+  const [filterStatus, setFilterStatus] = useState<Filter>(Filter.All);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [isLoading, setIsLoading] = useState(false);
+  const [editTodos, setEditTodos] = useState<number[]>([]);
+
+  const filteredTodos = filterTodos(todos, filterStatus);
+
+  const handleCreateTodo = async (newTodo: Omit<Todo, 'id'>) => {
+    setErrorMessage('');
+    setTempTodo({ id: 0, ...newTodo });
+    setIsLoading(true);
+    try {
+      const createdTodo = await addTodos(newTodo);
+
+      setTodos(prev => [...prev, createdTodo]);
+    } catch (error) {
+      setErrorMessage('Unable to add a todo');
+
+      throw error;
+    } finally {
+      setTempTodo(null);
+      setIsLoading(false);
+    }
+  };
+
+  const handleDeleteTodo = async (id: number) => {
+    setErrorMessage('');
+    setIsLoading(true);
+    setEditTodos(current => [...current, id]);
+    try {
+      await deleteTodos(id);
+      setTodos(prev => prev.filter(todo => todo.id !== id));
+    } catch {
+      setEditTodos([]);
+      setErrorMessage('Unable to delete a todo');
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  const handleClearCompleted = async () => {
+    const completedTodos = todos.filter(todo => todo.completed);
+
+    await Promise.all(completedTodos.map(todo => handleDeleteTodo(todo.id)));
+  };
+
+  const handleToggleStatus = async (id: number, completed: boolean) => {
+    setIsLoading(true);
+    setEditTodos(current => [...current, id]);
+    try {
+      const todoToUpdate = todos.find(todo => todo.id === id);
+
+      if (!todoToUpdate) {
+        setErrorMessage('Todo not found');
+
+        return;
+      }
+
+      const updatedTodo = await updateTodos(id, {
+        completed,
+        userId: todoToUpdate.userId,
+        title: todoToUpdate.title,
+      });
+
+      setTodos(prev =>
+        prev.map(todo => (todo.id === updatedTodo.id ? updatedTodo : todo)),
+      );
+    } catch {
+      setErrorMessage('Unable to update a todo');
+    } finally {
+      setEditTodos(prev => prev.filter(todoId => todoId !== id));
+      setIsLoading(false);
+    }
+  };
+
+  const handleToggleAll = async () => {
+    const allCompleted = todos.every(todo => todo.completed);
+    const newStatus = !allCompleted;
+
+    setIsLoading(true);
+    const promises = todos
+      .filter(todo => todo.completed !== newStatus)
+      .map(todo => handleToggleStatus(todo.id, newStatus));
+
+    try {
+      await Promise.all(promises);
+      setTodos(prev =>
+        prev.map(todo =>
+          todo.completed !== newStatus
+            ? { ...todo, completed: newStatus }
+            : todo,
+        ),
+      );
+    } catch {
+      setErrorMessage('Unable to update todos');
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  const handleUpdateTitle = async (id: number, newTitle: string) => {
+    setErrorMessage('');
+    setIsLoading(true);
+    setEditTodos(current => [...current, id]);
+
+    try {
+      const todoToUpdate = todos.find(todo => todo.id === id);
+
+      if (!todoToUpdate) {
+        return;
+      }
+
+      const updatedTodo = await updateTodos(id, {
+        ...todoToUpdate,
+        title: newTitle,
+      });
+
+      setTodos(prev =>
+        prev.map(todo => (todo.id === updatedTodo.id ? updatedTodo : todo)),
+      );
+    } catch {
+      setErrorMessage('Unable to update a todo');
+      throw new Error('Unable to update a todo');
+    } finally {
+      setIsLoading(false);
+      setEditTodos(prev => prev.filter(todoId => todoId !== id));
+    }
+  };
+
+  useEffect(() => {
+    getTodos()
+      .then(setTodos)
+      .catch(() => setErrorMessage('Unable to load todos'));
+  }, []);
+
   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">
+        <Header
+          todos={todos}
+          setErrorMessage={setErrorMessage}
+          handleCreateTodo={handleCreateTodo}
+          isLoading={isLoading}
+          onToggleAll={handleToggleAll}
+        />
+
+        {todos.length > 0 && (
+          <TodoList
+            todos={filteredTodos}
+            tempTodo={tempTodo}
+            onDelete={handleDeleteTodo}
+            editTodos={editTodos}
+            onToggle={handleToggleStatus}
+            onUpdate={handleUpdateTitle}
+          />
+        )}
+
+        {!!todos.length && (
+          <Footer
+            filterStatus={filterStatus}
+            setFilterStatus={setFilterStatus}
+            todos={todos}
+            handleClearCompleted={handleClearCompleted}
+          />
+        )}
+      </div>
+
+      <ErrorNotification
+        errorMessage={errorMessage}
+        setErrorMessage={setErrorMessage}
+      />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 2125;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const addTodos = (newTodo: Omit<Todo, 'id'>) => {
+  return client.post<Todo>(`/todos`, newTodo);
+};
+
+export const deleteTodos = (id: number) => {
+  return client.delete(`/todos/${id}`);
+};
+
+export const updateTodos = (id: number, newTodo: Omit<Todo, 'id'>) => {
+  return client.patch<Todo>(`/todos/${id}`, newTodo);
+};

src/components/ErrorNotification/ErrorNotification.tsx

@@ -0,0 +1,41 @@
+import React, { useEffect } from 'react';
+import cn from 'classnames';
+
+type Props = {
+  errorMessage: string;
+  setErrorMessage: (message: string) => void;
+};
+
+export const ErrorNotification: React.FC<Props> = ({
+  errorMessage,
+  setErrorMessage,
+}) => {
+  useEffect(() => {
+    if (errorMessage) {
+      const timer = setTimeout(() => {
+        setErrorMessage('');
+      }, 3000);
+
+      return () => clearTimeout(timer);
+    }
+
+    return undefined;
+  }, [errorMessage, setErrorMessage]);
+
+  return (
+    <div
+      className={cn('notification is-danger is-light has-text-weight-normal', {
+        hidden: !errorMessage,
+      })}
+      data-cy="ErrorNotification"
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={() => setErrorMessage('')}
+      />
+      {errorMessage}
+    </div>
+  );
+};

src/components/Footer/Footer.tsx

@@ -0,0 +1,59 @@
+import React from 'react';
+import { Todo } from '../../types/Todo';
+import { Filter } from '../../types/Filter';
+import cn from 'classnames';
+
+type Props = {
+  todos: Todo[];
+  filterStatus: Filter;
+  setFilterStatus: (filter: Filter) => void;
+  handleClearCompleted: () => void;
+};
+
+const filterLinks = [
+  { label: 'All', value: Filter.All },
+  { label: 'Active', value: Filter.Active },
+  { label: 'Completed', value: Filter.Completed },
+];
+
+export const Footer: React.FC<Props> = ({
+  setFilterStatus,
+  todos,
+  filterStatus,
+  handleClearCompleted,
+}) => {
+  const todosLeft = todos.filter(todo => !todo.completed);
+  const isClearCompletedDisabled = todos.every(todo => !todo.completed);
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {todosLeft.length} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {filterLinks.map(({ label, value }) => (
+          <a
+            key={value}
+            href={`#/${value}`}
+            className={cn('filter__link', { selected: filterStatus === value })}
+            data-cy={`FilterLink${label}`}
+            onClick={() => setFilterStatus(value)}
+          >
+            {label}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={isClearCompletedDisabled}
+        onClick={handleClearCompleted}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};