Implement Todo App features

.hintrc

@@ -0,0 +1,9 @@
+{
+  "extends": [
+    "development"
+  ],
+  "hints": {
+    "axe/name-role-value": "off",
+    "axe/forms": "off"
+  }
+}

package.json

@@ -14,7 +14,7 @@
   },
   "devDependencies": {
     "@cypress/react18": "^2.0.1",
-    "@mate-academy/scripts": "^1.9.12",
+    "@mate-academy/scripts": "^2.1.3",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",
     "@types/node": "^20.14.10",

src/App.tsx

@@ -1,157 +1,6 @@
-/* eslint-disable jsx-a11y/control-has-associated-label */
 import React from 'react';
+import { TodoApp } from './components/TodoApp';
 
 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>
-
-          {/* 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>
-
-            <a
-              href="#/completed"
-              className="filter__link"
-              data-cy="FilterLinkCompleted"
-            >
-              Completed
-            </a>
-          </nav>
-
-          {/* 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>
-      </div>
-    </div>
-  );
+  return <TodoApp />;
 };

src/components/Footer/Footer.tsx

@@ -0,0 +1,76 @@
+/* eslint-disable prettier/prettier */
+import React, { useContext } from 'react';
+import classNames from 'classnames';
+import { TodoContext } from '../../context/TodoContext';
+import { FILTERS } from '../../types/Filter';
+
+export const Footer: React.FC = () => {
+  const { todos, setTodos, filter, setFilter } = useContext(TodoContext);
+
+  const activeTodos = todos.filter(todo => !todo.completed).length;
+
+  const handleClearCompleted = () => {
+    setTodos(todos.filter(todo => !todo.completed));
+
+    setTimeout(() => {
+      (
+        document.querySelector(
+          '[data-cy="NewTodoField"]',
+        ) as HTMLInputElement | null
+      )?.focus();
+    }, 0);
+  };
+
+  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">
+        <a
+          href="#/"
+          data-cy="FilterLinkAll"
+          className={classNames('filter__link', {
+            selected: filter === FILTERS.all,
+          })}
+          onClick={() => setFilter(FILTERS.all)}
+        >
+          All
+        </a>
+
+        <a
+          href="#/active"
+          data-cy="FilterLinkActive"
+          className={classNames('filter__link', {
+            selected: filter === FILTERS.active,
+          })}
+          onClick={() => setFilter(FILTERS.active)}
+        >
+          Active
+        </a>
+
+        <a
+          href="#/completed"
+          data-cy="FilterLinkCompleted"
+          className={classNames('filter__link', {
+            selected: filter === FILTERS.completed,
+          })}
+          onClick={() => setFilter(FILTERS.completed)}
+        >
+          Completed
+        </a>
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={!todos.some(todo => todo.completed)}
+        onClick={handleClearCompleted}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};

src/components/Footer/index.ts

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

src/components/TodoApp/TodoApp.tsx

@@ -0,0 +1,24 @@
+/* eslint-disable prettier/prettier */
+import React, { useContext } from 'react';
+import { TodoContext } from '../../context/TodoContext';
+import { TodoHeader } from '../TodoHeader';
+import { TodoList } from '../TodoList';
+import { Footer } from '../Footer';
+
+export const TodoApp: React.FC = () => {
+  const { todos } = useContext(TodoContext);
+
+  return (
+    <div className="todoapp">
+      <h1 className="todoapp__title">todos</h1>
+
+      <div className="todoapp__content">
+        <TodoHeader />
+
+        {todos.length > 0 && <TodoList />}
+
+        {todos.length > 0 && <Footer />}
+      </div>
+    </div>
+  );
+};

src/components/TodoApp/index.ts

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

src/components/TodoHeader/TodoHeader.tsx

@@ -0,0 +1,76 @@
+/* eslint-disable prettier/prettier */
+import React, { useContext, useRef, useState } from 'react';
+import classNames from 'classnames';
+import { TodoContext } from '../../context/TodoContext';
+
+export const TodoHeader: React.FC = () => {
+  const { todos, setTodos } = useContext(TodoContext);
+
+  const [title, setTitle] = useState('');
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  const handleSubmit = (event: React.FormEvent) => {
+    event.preventDefault();
+
+    const trimmedTitle = title.trim();
+
+    if (!trimmedTitle) {
+      inputRef.current?.focus();
+
+      return;
+    }
+
+    setTodos([
+      ...todos,
+      {
+        id: +new Date(),
+        title: trimmedTitle,
+        completed: false,
+      },
+    ]);
+
+    setTitle('');
+    inputRef.current?.focus();
+  };
+
+  const handleToggleAll = () => {
+    const allCompleted = todos.every(todo => todo.completed);
+
+    setTodos(
+      todos.map(todo => ({
+        ...todo,
+        completed: !allCompleted,
+      })),
+    );
+
+    inputRef.current?.focus();
+  };
+
+  return (
+    <header className="todoapp__header">
+      {todos.length > 0 && (
+        <button
+          type="button"
+          data-cy="ToggleAllButton"
+          className={classNames('todoapp__toggle-all', {
+            active: todos.every(todo => todo.completed),
+          })}
+          onClick={handleToggleAll}
+        />
+      )}
+
+      <form onSubmit={handleSubmit}>
+        <input
+          ref={inputRef}
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          autoFocus
+          value={title}
+          onChange={event => setTitle(event.target.value)}
+        />
+      </form>
+    </header>
+  );
+};

src/components/TodoHeader/index.ts

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