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

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

@@ -1,156 +1,48 @@
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useContext, useState } from 'react';
+import { TodoHeader } from './Components/TodoHeader/TodoHeader';
+import { TodoList } from './Components/TodoList/TodoList';
+import { TodoFooter } from './Components/TodoFooter/TodoFooter';
+import { TodoContext } from './TodoContext';
+import { Filter } from './Utils/Filter';
 
 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>
+  const { todos } = useContext(TodoContext);
 
-          {/* 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>
+  const [filter, setFilter] = useState<Filter>(Filter.All);
 
-            <span data-cy="TodoTitle" className="todo__title">
-              Not Completed Todo
-            </span>
+  const filteredTodos = todos.filter(todo => {
+    switch (filter) {
+      case 'active':
+        return !todo.completed;
 
-            <button type="button" className="todo__remove" data-cy="TodoDelete">
-              ×
-            </button>
-          </div>
+      case 'completed':
+        return todo.completed;
 
-          {/* 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>
+      default:
+        return true;
+    }
+  });
 
-            {/* 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>
+  const handleFilterChange = (
+    event: React.MouseEvent<HTMLAnchorElement>,
+    value: Filter,
+  ) => {
+    event.preventDefault();
+    setFilter(value);
+  };
 
-          {/* 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>
+  return (
+    <div className="todoapp">
+      <h1 className="todoapp__title">todos</h1>
 
-            <a
-              href="#/active"
-              className="filter__link"
-              data-cy="FilterLinkActive"
-            >
-              Active
-            </a>
+      <div className="todoapp__content">
+        <TodoHeader />
 
-            <a
-              href="#/completed"
-              className="filter__link"
-              data-cy="FilterLinkCompleted"
-            >
-              Completed
-            </a>
-          </nav>
+        {todos.length > 0 && <TodoList todos={filteredTodos} />}
 
-          {/* 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>
+        {todos.length > 0 && (
+          <TodoFooter filter={filter} onFilterChange={handleFilterChange} />
+        )}
       </div>
     </div>
   );

src/Components/TodoFooter/TodoFooter.tsx

@@ -0,0 +1,80 @@
+import classNames from 'classnames';
+
+import React, { useContext } from 'react';
+import { TodoContext } from '../../TodoContext';
+import { Filter } from '../../Utils/Filter';
+
+type Props = {
+  filter: Filter;
+  onFilterChange: (
+    event: React.MouseEvent<HTMLAnchorElement>,
+    value: Filter,
+  ) => void;
+};
+
+export const TodoFooter: React.FC<Props> = ({ filter, onFilterChange }) => {
+  const { todos, dispatch, mainInputRef } = useContext(TodoContext);
+
+  const focusMain = () => {
+    mainInputRef.current?.focus();
+  };
+
+  const handleClearCompleted = () => {
+    dispatch({
+      type: 'clearCompleted',
+    });
+    focusMain();
+  };
+
+  const filterLinks = [
+    { label: 'All', value: Filter.All, href: '#/', dataCy: 'FilterLinkAll' },
+
+    {
+      label: 'Active',
+      value: Filter.Active,
+      href: '#/active',
+      dataCy: 'FilterLinkActive',
+    },
+
+    {
+      label: 'Completed',
+      value: Filter.Completed,
+      href: '#/completed',
+      dataCy: 'FilterLinkCompleted',
+    },
+  ];
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {todos.filter(todo => !todo.completed).length} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {filterLinks.map(({ label, value, href, dataCy }) => (
+          <a
+            key={value}
+            href={href}
+            className={classNames('filter__link', {
+              selected: filter === value,
+            })}
+            data-cy={dataCy}
+            onClick={event => onFilterChange(event, value)}
+          >
+            {label}
+          </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/TodoHeader/TodoHeader.tsx

@@ -0,0 +1,62 @@
+import classNames from 'classnames';
+
+import React, { useContext, useEffect, useState } from 'react';
+import { TodoContext } from '../../TodoContext';
+
+export const TodoHeader: React.FC = () => {
+  const { todos, dispatch, mainInputRef } = useContext(TodoContext);
+
+  const [query, setQuery] = useState('');
+
+  useEffect(() => {
+    mainInputRef.current?.focus();
+  }, [mainInputRef]);
+
+  const handleSubmit = (event: React.FormEvent<HTMLFormElement>) => {
+    event.preventDefault();
+
+    const trimmed = query.trim();
+
+    if (!trimmed) {
+      return;
+    }
+
+    dispatch({
+      type: 'addTodo',
+      payload: trimmed,
+    });
+
+    setQuery('');
+  };
+
+  return (
+    <header className="todoapp__header">
+      {todos.length > 0 && (
+        <button
+          type="button"
+          className={classNames('todoapp__toggle-all', {
+            active: todos.every(todo => todo.completed),
+          })}
+          data-cy="ToggleAllButton"
+          onClick={() =>
+            dispatch({
+              type: 'toggleAll',
+            })
+          }
+        />
+      )}
+
+      <form onSubmit={handleSubmit}>
+        <input
+          ref={mainInputRef}
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          value={query}
+          onChange={event => setQuery(event.target.value)}
+        />
+      </form>
+    </header>
+  );
+};