add task solution

README.md

@@ -33,4 +33,4 @@ Implement a simple [TODO app](https://mate-academy.github.io/react_todo-app/) th
 - Implement a solution following the [React task guidelines](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).
 - Open another terminal and run tests with `npm test` to ensure your solution is correct.
-- Replace `<your_account>` with your GitHub username in the [DEMO LINK](https://<your_account>.github.io/react_todo-app/) and add it to the PR description.
+- Replace `<your_account>` with your GitHub username in the [DEMO LINK](https://kravets111.github.io/react_todo-app/) and add it to the PR description.

src/App.tsx

@@ -1,157 +1,25 @@
 /* eslint-disable jsx-a11y/control-has-associated-label */
 import React from 'react';
+import { Header } from './components/Header';
+import { TodoList } from './components/TodoList';
+import { Footer } from './components/Footer';
+import { TodosProvider } from './components/TodosContext';
 
 export const App: React.FC = () => {
-  return (
-    <div className="todoapp">
-      <h1 className="todoapp__title">todos</h1>
-
-      <div className="todoapp__content">
-        <header className="todoapp__header">
-          {/* this button should have `active` class only if all todos are completed */}
-          <button
-            type="button"
-            className="todoapp__toggle-all active"
-            data-cy="ToggleAllButton"
-          />
-
-          {/* Add a todo on form submit */}
-          <form>
-            <input
-              data-cy="NewTodoField"
-              type="text"
-              className="todoapp__new-todo"
-              placeholder="What needs to be done?"
-            />
-          </form>
-        </header>
-
-        <section className="todoapp__main" data-cy="TodoList">
-          {/* This is a completed todo */}
-          <div data-cy="Todo" className="todo completed">
-            <label className="todo__status-label">
-              <input
-                data-cy="TodoStatus"
-                type="checkbox"
-                className="todo__status"
-                checked
-              />
-            </label>
-
-            <span data-cy="TodoTitle" className="todo__title">
-              Completed Todo
-            </span>
-
-            {/* Remove button appears only on hover */}
-            <button type="button" className="todo__remove" data-cy="TodoDelete">
-              ×
-            </button>
-          </div>
-
-          {/* This todo is an active todo */}
-          <div data-cy="Todo" className="todo">
-            <label className="todo__status-label">
-              <input
-                data-cy="TodoStatus"
-                type="checkbox"
-                className="todo__status"
-              />
-            </label>
-
-            <span data-cy="TodoTitle" className="todo__title">
-              Not Completed Todo
-            </span>
-
-            <button type="button" className="todo__remove" data-cy="TodoDelete">
-              ×
-            </button>
-          </div>
+  // const { todos } = useContext(TodosContext);
 
-          {/* This todo is being edited */}
-          <div data-cy="Todo" className="todo">
-            <label className="todo__status-label">
-              <input
-                data-cy="TodoStatus"
-                type="checkbox"
-                className="todo__status"
-              />
-            </label>
-
-            {/* This form is shown instead of the title and remove button */}
-            <form>
-              <input
-                data-cy="TodoTitleField"
-                type="text"
-                className="todo__title-field"
-                placeholder="Empty todo will be deleted"
-                value="Todo is being edited now"
-              />
-            </form>
-          </div>
-
-          {/* This todo is in loadind state */}
-          <div data-cy="Todo" className="todo">
-            <label className="todo__status-label">
-              <input
-                data-cy="TodoStatus"
-                type="checkbox"
-                className="todo__status"
-              />
-            </label>
-
-            <span data-cy="TodoTitle" className="todo__title">
-              Todo is being saved now
-            </span>
-
-            <button type="button" className="todo__remove" data-cy="TodoDelete">
-              ×
-            </button>
-          </div>
-        </section>
-
-        {/* Hide the footer if there are no todos */}
-        <footer className="todoapp__footer" data-cy="Footer">
-          <span className="todo-count" data-cy="TodosCounter">
-            3 items left
-          </span>
-
-          {/* Active link should have the 'selected' class */}
-          <nav className="filter" data-cy="Filter">
-            <a
-              href="#/"
-              className="filter__link selected"
-              data-cy="FilterLinkAll"
-            >
-              All
-            </a>
-
-            <a
-              href="#/active"
-              className="filter__link"
-              data-cy="FilterLinkActive"
-            >
-              Active
-            </a>
+  return (
+    <TodosProvider>
+      <div className="todoapp">
+        <h1 className="todoapp__title">todos</h1>
 
-            <a
-              href="#/completed"
-              className="filter__link"
-              data-cy="FilterLinkCompleted"
-            >
-              Completed
-            </a>
-          </nav>
+        <div className="todoapp__content">
+          <Header />
 
-          {/* this button should be disabled if there are no completed todos */}
-          <button
-            type="button"
-            className="todoapp__clear-completed"
-            data-cy="ClearCompletedButton"
-          >
-            Clear completed
-          </button>
-        </footer>
+          <TodoList />
+          <Footer />
+        </div>
       </div>
-    </div>
+    </TodosProvider>
   );
 };

src/components/Footer/Footer.tsx

@@ -0,0 +1,72 @@
+import React, { useContext } from 'react';
+import { TodosContext } from '../TodosContext';
+import { Options } from '../../type/Options';
+import classNames from 'classnames';
+
+export const Footer: React.FC = () => {
+  const { todos, setTodos, option, setOption } = useContext(TodosContext);
+  const itemsLeft = todos.filter(todo => !todo.completed).length;
+
+  if (!todos.length) {
+    return null;
+  }
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {itemsLeft} items left
+      </span>
+
+      {/* Active link should have the 'selected' class */}
+      <nav className="filter" data-cy="Filter">
+        <a
+          href="#/"
+          className={classNames('filter__link', {
+            selected: option === Options.All,
+          })}
+          data-cy="FilterLinkAll"
+          onClick={() => setOption(Options.All)}
+        >
+          All
+        </a>
+
+        <a
+          href="#/active"
+          className={classNames('filter__link', {
+            selected: option === Options.Active,
+          })}
+          data-cy="FilterLinkActive"
+          onClick={() => setOption(Options.Active)}
+        >
+          Active
+        </a>
+
+        <a
+          href="#/completed"
+          className={classNames('filter__link', {
+            selected: option === Options.Completed,
+          })}
+          data-cy="FilterLinkCompleted"
+          onClick={() => setOption(Options.Completed)}
+        >
+          Completed
+        </a>
+      </nav>
+
+      {/* this button should be disabled if there are no completed todos */}
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        onClick={() => {
+          const updatedTodos = todos.filter(todo => !todo.completed);
+
+          setTodos(updatedTodos);
+        }}
+        disabled={todos.every(todo => !todo.completed)}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};

src/components/Footer/index.tsx

@@ -0,0 +1 @@
+export * from './Footer';

src/components/Header/Header.tsx

@@ -0,0 +1,78 @@
+import React, { useContext, useEffect, useMemo, useRef, useState } from 'react';
+import { TodosContext } from '../TodosContext';
+import classNames from 'classnames';
+
+export const Header: React.FC = () => {
+  const { todos, setTodos, addTodo } = useContext(TodosContext);
+
+  const inputRef = useRef<HTMLInputElement | null>(null);
+
+  const [title, setTitle] = useState('');
+  const [buttonVisible, setButtonVisible] = useState(false);
+
+  const handleChangeInput = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setTitle(event.target.value);
+  };
+
+  const handleSubmit = (event: React.FormEvent) => {
+    event.preventDefault();
+
+    if (!!title.trim().length) {
+      addTodo(title.trim());
+      setTitle('');
+      setButtonVisible(true);
+    }
+  };
+
+  const areAllTodosCompleted = useMemo(() => {
+    return todos.every(todo => todo.completed);
+  }, [todos]);
+
+  useEffect(() => {
+    setButtonVisible(todos.length > 0);
+  }, [todos]);
+
+  useEffect(() => {
+    if (inputRef.current) {
+      inputRef.current.focus();
+    }
+  }, [todos]);
+
+  const handleToggleAll = () => {
+    const updatedTodos = todos.map(todo => ({
+      ...todo,
+      completed: areAllTodosCompleted ? false : true,
+    }));
+
+    setTodos(updatedTodos);
+  };
+
+  return (
+    <header className="todoapp__header">
+      {buttonVisible && (
+        <button
+          type="button"
+          className={classNames('todoapp__toggle-all', {
+            active: areAllTodosCompleted,
+          })}
+          data-cy="ToggleAllButton"
+          onClick={handleToggleAll}
+        />
+      )}
+
+      {/* Add a todo on form submit */}
+      <form onSubmit={handleSubmit}>
+        <input
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          ref={inputRef}
+          value={title}
+          onChange={handleChangeInput}
+          style={{ outline: 'none', boxSizing: 'border-box' }}
+        />
+      </form>
+    </header>
+  );
+};

src/components/Header/index.tsx

@@ -0,0 +1 @@
+export * from './Header';