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://polinabs.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/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, useMemo, useRef, useState } from 'react';
+import { Header } from './copmonents/Header/Header';
+import { TodoList } from './copmonents/TodoList/TodoList';
+import { Footer } from './copmonents/Footer/Footer';
+import { Todo } from './types/Todo';
+import * as todoMethods from './api/todos';
+import { ErrorNotification } from './copmonents/Error/Error';
+import { FilterStatus } from './types/FilterStatus';
+import getTodosFilter from './utils/getTodosFilter';
 
 export const App: React.FC = () => {
-  if (!USER_ID) {
-    return <UserWarning />;
-  }
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMessage, setErrorMessage] = useState('');
+  const [filterStatus, setFilterStatus] = useState<FilterStatus>(
+    FilterStatus.All,
+  );
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [deletingTodoIds, setDeletingTodoIds] = useState<number[] | null>(null);
+  const [updatingTodoIds, setUpdatingTodoIds] = useState<number[] | null>(null);
+  const [isInputDisabled, setInputDisabled] = useState(false);
+
+  const isTodosEmpty = todos.length === 0;
+  const todosActiveQuantity = todos.filter(todo => !todo.completed).length;
+  const todosComplitedQuantity = todos.filter(todo => todo.completed).length;
+  const allTodosIsComplited = todos.every(todo => todo.completed);
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  useEffect(() => {
+    if (inputRef.current) {
+      inputRef.current.focus();
+    }
+  }, [isInputDisabled]);
+
+  useEffect(() => {
+    todoMethods
+      .getTodos()
+      .then(setTodos)
+      .catch(error => {
+        setErrorMessage('Unable to load todos');
+        throw error;
+      });
+  }, []);
+
+  const filteredTodos = useMemo((): Todo[] => {
+    const filterTodos = getTodosFilter(filterStatus);
+
+    if (!filterTodos) {
+      return todos;
+    }
+
+    return filterTodos(todos);
+  }, [filterStatus, todos]);
+
+  const addTodo = async (title: string): Promise<void> => {
+    const userId = todoMethods.USER_ID;
+
+    const temporaryTodo: Todo = {
+      id: 0,
+      userId,
+      title,
+      completed: false,
+    };
+
+    setTempTodo(temporaryTodo);
+    setInputDisabled(true);
+
+    try {
+      const newTodo = await todoMethods.createTodo({
+        userId,
+        title,
+        completed: false,
+      });
+
+      setTodos(currentTodos => [...currentTodos, newTodo]);
+      setTempTodo(null);
+    } catch (error) {
+      setErrorMessage('Unable to add a todo');
+      setTempTodo(null);
+      throw error;
+    } finally {
+      setTempTodo(null);
+      setInputDisabled(false);
+    }
+  };
+
+  const deleteTodo = async (todoId: number): Promise<void> => {
+    setDeletingTodoIds(prev => (prev ? [...prev, todoId] : [todoId]));
+    setInputDisabled(true);
+
+    try {
+      await todoMethods.deleteTodo(todoId);
+
+      setTodos(currentTodos => currentTodos.filter(todo => todo.id !== todoId));
+    } catch (error) {
+      setErrorMessage('Unable to delete a todo');
+      throw error;
+    } finally {
+      setDeletingTodoIds(prev =>
+        prev ? prev.filter(id => id !== todoId) : [],
+      );
+      setInputDisabled(false);
+    }
+  };
+
+  const clearAllComplitedTodos = () => {
+    const completedTodoIds = todos
+      .filter(todo => todo.completed)
+      .map(todo => todo.id);
+
+    if (completedTodoIds.length === 0) {
+      return;
+    }
+
+    setDeletingTodoIds(completedTodoIds);
+    setInputDisabled(true);
+
+    const deleteTodoPromises = completedTodoIds.map(deleteTodo);
+
+    Promise.all(deleteTodoPromises).finally(() => {
+      setDeletingTodoIds(null);
+      setInputDisabled(false);
+    });
+  };
+
+  const updateTodo = async (todo: Todo) => {
+    setUpdatingTodoIds(prev => (prev ? [...prev, todo.id] : [todo.id]));
+
+    try {
+      const updatedTodo = await todoMethods.updateTodo(todo);
+
+      setTodos(currentTodos =>
+        currentTodos.map(currentTodo => {
+          if (currentTodo.id === updatedTodo.id) {
+            return updatedTodo;
+          }
+
+          return currentTodo;
+        }),
+      );
+    } catch (error) {
+      setErrorMessage('Unable to update a todo');
+      throw error;
+    } finally {
+      setUpdatingTodoIds(prev =>
+        prev ? prev.filter(id => id !== todo.id) : [],
+      );
+    }
+  };
+
+  const toggleTodos = async () => {
+    const targetStatus = !allTodosIsComplited;
+
+    const todosToUpdate = todos.filter(todo => todo.completed !== targetStatus);
+
+    try {
+      for (const todo of todosToUpdate) {
+        await updateTodo({ ...todo, completed: targetStatus });
+      }
+    } catch (error) {
+      setErrorMessage('Unable to update a todo');
+      throw error;
+    }
+  };
 
   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
+          addTodo={addTodo}
+          setErrorMessage={setErrorMessage}
+          isInputDisabled={isInputDisabled}
+          inputRef={inputRef}
+          allTodosIsComplited={allTodosIsComplited}
+          isTodosEmpty={isTodosEmpty}
+          toggleTodos={toggleTodos}
+        />
+        <TodoList
+          todos={filteredTodos}
+          deleteTodo={deleteTodo}
+          deletingTodoIds={deletingTodoIds}
+          updatingTodoIds={updatingTodoIds}
+          tempTodo={tempTodo}
+          updateTodo={updateTodo}
+        />
+        {todos.length > 0 && (
+          <Footer
+            setFilterStatus={setFilterStatus}
+            filterStatus={filterStatus}
+            todosActiveQuantity={todosActiveQuantity}
+            todosComplitedQuantity={todosComplitedQuantity}
+            clearAllComplitedTodos={clearAllComplitedTodos}
+          />
+        )}
+      </div>
+
+      <ErrorNotification error={errorMessage} setError={setErrorMessage} />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 2214;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const deleteTodo = (todoId: number) => {
+  return client.delete(`/todos/${todoId}`);
+};
+
+export const createTodo = ({ userId, title, completed }: Omit<Todo, 'id'>) => {
+  return client.post<Todo>('/todos', { userId, title, completed });
+};
+
+export const updateTodo = (todo: Todo) => {
+  return client.patch<Todo>(`/todos/${todo.id}`, todo);
+};

src/copmonents/Error/Error.tsx

@@ -0,0 +1,43 @@
+import classNames from 'classnames';
+import React, { useEffect } from 'react';
+
+type Props = {
+  error: string;
+  setError: (error: string) => void;
+};
+
+export const ErrorNotification: React.FC<Props> = ({ error, setError }) => {
+  useEffect(() => {
+    if (!error) {
+      return;
+    }
+
+    const timerId = setTimeout(() => {
+      setError('');
+    }, 3000);
+
+    return () => {
+      clearTimeout(timerId);
+    };
+  }, [error, setError]);
+
+  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={() => setError('')}
+      />
+      {error}
+    </div>
+  );
+};

src/copmonents/Footer/Footer.tsx

@@ -0,0 +1,59 @@
+import classNames from 'classnames';
+import { FilterStatus } from '../../types/FilterStatus';
+import capitalize from '../../utils/capitalize';
+
+type Props = {
+  setFilterStatus: (link: FilterStatus) => void;
+  filterStatus: FilterStatus;
+  todosActiveQuantity: number;
+  todosComplitedQuantity: number;
+  clearAllComplitedTodos: () => void;
+};
+
+const formatFilterStatusHref = (filterStatus: FilterStatus): string => {
+  return `#/${filterStatus === FilterStatus.All ? '' : filterStatus}`;
+};
+
+export const Footer: React.FC<Props> = ({
+  setFilterStatus,
+  filterStatus,
+  todosActiveQuantity,
+  todosComplitedQuantity,
+  clearAllComplitedTodos,
+}) => {
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {todosActiveQuantity} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {Object.values(FilterStatus).map(status => {
+          return (
+            <a
+              href={formatFilterStatusHref(status)}
+              className={classNames('filter__link', {
+                selected: filterStatus === status,
+              })}
+              data-cy={`FilterLink${capitalize(status)}`}
+              onClick={() => setFilterStatus(status)}
+              key={status}
+            >
+              {capitalize(status)}
+            </a>
+          );
+        })}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={todosComplitedQuantity === 0}
+        onClick={clearAllComplitedTodos}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};