Solution

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://AndreaTkachuk.github.io/react_todo-app-with-api/) and add it to the PR description.

src/App.tsx

@@ -1,26 +1,242 @@
-/* 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 } from 'react';
+import { UserWarning } from './components/UserWarning';
+import {
+  getTodos,
+  postTodo,
+  removeTodo,
+  renewTodo,
+  USER_ID,
+} from './api/todos';
+import { Todo } from './types/Todo';
+import { ErrorComponent } from './components/ErrorComponent';
+import { Footer } from './components/Footer';
+import { getFilteredItems } from './utils/getFilteredItems';
+import { Header } from './components/Header';
+import { TodoList } from './components/TodoList';
+import { Filter } from './utils/enamFilter';
 
 export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [filter, setFilter] = useState<Filter>(Filter.All);
+  const [error, setError] = useState('');
+  const [title, setTitle] = useState('');
+  const [loading, setLoading] = useState<number | null>(null);
+  const [isEditingId, setIsEditingId] = useState<number | null>(null);
+  const showError = (message: string) => {
+    setError(message);
+
+    setTimeout(() => {
+      setError('');
+    }, 3000);
+  };
+
+  useEffect(() => {
+    getTodos()
+      .then(setTodos)
+      .catch(() => showError('Unable to load todos'))
+      .finally(() => setLoading(0));
+  }, []);
+
   if (!USER_ID) {
     return <UserWarning />;
   }
 
+  const addTodo = (todoTitle: string) => {
+    setLoading(1);
+    setTempTodo({
+      id: 0,
+      userId: 2215,
+      title: todoTitle,
+      completed: false,
+    });
+
+    postTodo(title.trim())
+      .then((newTodo: Todo) => {
+        setTodos(prevTodos => [...prevTodos, newTodo]);
+        setError('');
+        setTitle('');
+      })
+      .catch(() => showError('Unable to add a todo'))
+      .finally(() => {
+        setLoading(0);
+        setTempTodo(null);
+      });
+  };
+
+  const updateTodoCheck = (id: number) => {
+    setLoading(id);
+
+    const todoToUpdate = todos.find(todo => todo.id === id);
+
+    if (!todoToUpdate) {
+      setLoading(0);
+
+      return;
+    }
+
+    const updatedTodo = {
+      ...todoToUpdate,
+      completed: !todoToUpdate.completed,
+    };
+
+    renewTodo(id, updatedTodo)
+      .then(() => {
+        setTodos(currentTodos =>
+          currentTodos.map(todo =>
+            todo.id === id ? { ...todo, completed: !todo.completed } : todo,
+          ),
+        );
+        setLoading(0);
+      })
+      .catch(() => showError('Unable to update a todo'))
+      .finally(() => setLoading(0));
+  };
+
+  const updateTodoTitle = (id: number, value: string): Promise<void> | void => {
+    if (loading === id) {
+      return;
+    }
+
+    setLoading(id);
+
+    const todoToUpdate = todos.find(todo => todo.id === id);
+
+    if (!todoToUpdate) {
+      setLoading(0);
+
+      return;
+    }
+
+    if (value === todoToUpdate.title) {
+      setIsEditingId(null);
+      setLoading(0);
+
+      return;
+    }
+
+    const updatedTodo = {
+      ...todoToUpdate,
+      title: value,
+    };
+
+    return renewTodo(id, updatedTodo)
+      .then(() => {
+        setTodos(currentTodos =>
+          currentTodos.map(todo =>
+            todo.id === id ? { ...todo, title: value } : todo,
+          ),
+        );
+        setLoading(0);
+      })
+      .catch(nextError => {
+        setLoading(0);
+        showError('Unable to update a todo');
+        throw nextError;
+      });
+  };
+
+  const deleteTodo = (id: number): Promise<void> | void => {
+    setLoading(id);
+
+    removeTodo(id)
+      .then(() => {
+        setTodos(todos.filter(item => item.id !== id));
+        setLoading(0);
+      })
+      .catch(() => {
+        showError('Unable to delete a todo');
+        setLoading(0);
+      });
+  };
+
+  const clearCompleted = () => {
+    const todosCompleted = todos.filter(todo => todo.completed);
+    const successIds: number[] = [];
+
+    Promise.all(
+      todosCompleted.map(todo => {
+        setLoading(todo.id);
+
+        return removeTodo(todo.id)
+          .then(() => successIds.push(todo.id))
+          .catch(() => showError('Unable to delete a todo'));
+      }),
+    )
+      .then(() => {
+        setTodos(todos.filter(todo => !successIds.includes(todo.id)));
+      })
+      .catch(() => showError('Unable to delete a todo'))
+      .finally(() => setLoading(0));
+  };
+
+  const toggleAllTodos = () => {
+    const areAllTodosCompleted = todos.every(todo => todo.completed);
+
+    const todosToToggle = areAllTodosCompleted
+      ? todos
+      : todos.filter(todo => !todo.completed);
+
+    Promise.all(
+      todosToToggle.map(todo =>
+        renewTodo(todo.id, { ...todo, completed: !areAllTodosCompleted })
+          .then(() => {
+            setTodos(currentTodos =>
+              currentTodos.map(t =>
+                t.id === todo.id
+                  ? { ...t, completed: !areAllTodosCompleted }
+                  : t,
+              ),
+            );
+          })
+          .catch(() => showError(`Unable to toggle todo with id ${todo.id}`)),
+      ),
+    ).finally(() => setLoading(0));
+  };
+
+  const filteredTodos = getFilteredItems(todos, filter);
+
   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}
+          addTodo={addTodo}
+          toggleAllTodos={toggleAllTodos}
+          setError={setError}
+          showError={showError}
+          loading={loading}
+          title={title}
+          setTitle={setTitle}
+          isEditingId={isEditingId}
+        />
+
+        <TodoList
+          setError={setError}
+          filteredTodos={filteredTodos}
+          loading={loading}
+          deleteTodo={deleteTodo}
+          updateTodoCheck={updateTodoCheck}
+          updateTodoTitle={updateTodoTitle}
+          tempTodo={tempTodo}
+          isEditingId={isEditingId}
+          setIsEditingId={setIsEditingId}
+        />
+
+        {todos.length > 0 && (
+          <Footer
+            todos={todos}
+            filter={filter}
+            setFilter={setFilter}
+            clearCompleted={clearCompleted}
+          />
+        )}
+      </div>
+      <ErrorComponent error={error} onClose={() => setError('')} />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,27 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 2215;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const postTodo = (value: string) => {
+  const newTodo = {
+    title: value,
+    completed: false,
+  };
+
+  return client.post<Todo>(`/todos`, { ...newTodo, userId: USER_ID });
+};
+
+export const renewTodo = (id: number, updatedTodo: Todo) => {
+  return client.patch<Todo>(`/todos/${id}`, updatedTodo);
+};
+
+export const removeTodo = (id: number) => {
+  return client.delete(`/todos/${id}`);
+};
+
+// Add more methods here

src/components/ErrorComponent.tsx

@@ -0,0 +1,27 @@
+import classNames from 'classnames';
+import React from 'react';
+
+type Props = {
+  error: string;
+  onClose: () => void;
+};
+
+export const ErrorComponent: React.FC<Props> = ({ error, onClose }) => {
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={classNames(
+        'notification is-danger is-light has-text-weight-normal',
+        { hidden: !error },
+      )}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={onClose}
+      />
+      {error}
+    </div>
+  );
+};

src/components/Footer.tsx

@@ -0,0 +1,56 @@
+import React from 'react';
+import { Todo } from '../types/Todo';
+import classNames from 'classnames';
+import { Filter } from '../utils/enamFilter';
+
+type Props = {
+  todos: Todo[];
+  filter: Filter;
+  setFilter: (filter: Filter) => void;
+  clearCompleted: () => void;
+};
+
+export const Footer: React.FC<Props> = ({
+  todos,
+  filter,
+  setFilter,
+  clearCompleted,
+}) => {
+  const leftItems = todos.filter(todo => !todo.completed).length;
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {leftItems} items left
+      </span>
+
+      {/* Active link should have the 'selected' class */}
+      <nav className="filter" data-cy="Filter">
+        {Object.keys(Filter).map(key => (
+          <a
+            key={key}
+            href={`#/${key}`}
+            className={classNames('filter__link', {
+              selected: filter === key.toLowerCase(),
+            })}
+            data-cy={`FilterLink${key}`}
+            onClick={() => setFilter(key.toLowerCase() as Filter)}
+          >
+            {key}
+          </a>
+        ))}
+      </nav>
+
+      {/* this button should be disabled if there are no completed todos */}
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        onClick={clearCompleted}
+        disabled={todos.every(todo => !todo.completed)}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};