solution

README.md

@@ -53,4 +53,4 @@ Implement a simple [TODO app](http://todomvc.com/examples/vanillajs/) working as
 - 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).
 - Open one more 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://denys2.github.io/react_todo-app/) and add it to the PR description.

package.json

@@ -15,8 +15,8 @@
   "devDependencies": {
     "@cypress/react": "^5.12.4",
     "@cypress/webpack-dev-server": "^1.8.4",
-    "@mate-academy/cypress-tools": "^1.0.5",
-    "@mate-academy/eslint-config-react-typescript": "^1.0.12",
+    "@mate-academy/cypress-tools": "^1.0.4",
+    "@mate-academy/eslint-config-react-typescript": "^1.0.11",
     "@mate-academy/scripts": "^1.2.8",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",

src/App.tsx

@@ -1,93 +1,107 @@
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useState, useMemo, useContext } from 'react';
+import { Filter } from './types/Filter';
+import { TodosContext } from './components/TodosContext';
+import { Todolist } from './components/TodoList';
+import { TodoFilter } from './components/TodoFilter';
 
 export const App: React.FC = () => {
+  const [title, setTitle] = useState('');
+  const [filter, setFilter] = useState<Filter>(Filter.All);
+
+  const todosContext = useContext(TodosContext);
+
+  const {
+    todos,
+    addTodo,
+    deleteCompletedTodos,
+    handleToggleAll,
+    todoCount,
+    completedTodos,
+    filterTodos,
+  } = todosContext;
+
+  const handleTitleChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setTitle(event.target.value);
+  };
+
+  const handleFormSubmit = (event: React.FormEvent) => {
+    event.preventDefault();
+
+    if (title.trim() === '') {
+      return;
+    }
+
+    addTodo(title);
+
+    setTitle('');
+  };
+
+  const handleClearCompleted = () => {
+    deleteCompletedTodos();
+  };
+
+  const filteredTodos = useMemo(() => {
+    return filterTodos(filter);
+  }, [filter, todos]);
+
   return (
     <div className="todoapp">
       <header className="header">
         <h1>todos</h1>
 
-        <form>
+        <form onSubmit={handleFormSubmit}>
           <input
             type="text"
             data-cy="createTodo"
             className="new-todo"
             placeholder="What needs to be done?"
+            value={title}
+            onChange={handleTitleChange}
           />
         </form>
       </header>
 
-      <section className="main">
-        <input
-          type="checkbox"
-          id="toggle-all"
-          className="toggle-all"
-          data-cy="toggleAll"
-        />
-        <label htmlFor="toggle-all">Mark all as complete</label>
-
-        <ul className="todo-list" data-cy="todoList">
-          <li>
-            <div className="view">
-              <input type="checkbox" className="toggle" id="toggle-view" />
-              <label htmlFor="toggle-view">asdfghj</label>
-              <button type="button" className="destroy" data-cy="deleteTodo" />
-            </div>
-            <input type="text" className="edit" />
-          </li>
-
-          <li className="completed">
-            <div className="view">
-              <input type="checkbox" className="toggle" id="toggle-completed" />
-              <label htmlFor="toggle-completed">qwertyuio</label>
-              <button type="button" className="destroy" data-cy="deleteTodo" />
-            </div>
-            <input type="text" className="edit" />
-          </li>
-
-          <li className="editing">
-            <div className="view">
-              <input type="checkbox" className="toggle" id="toggle-editing" />
-              <label htmlFor="toggle-editing">zxcvbnm</label>
-              <button type="button" className="destroy" data-cy="deleteTodo" />
-            </div>
-            <input type="text" className="edit" />
-          </li>
-
-          <li>
-            <div className="view">
-              <input type="checkbox" className="toggle" id="toggle-view2" />
-              <label htmlFor="toggle-view2">1234567890</label>
-              <button type="button" className="destroy" data-cy="deleteTodo" />
-            </div>
-            <input type="text" className="edit" />
-          </li>
-        </ul>
-      </section>
-
-      <footer className="footer">
-        <span className="todo-count" data-cy="todosCounter">
-          3 items left
-        </span>
-
-        <ul className="filters">
-          <li>
-            <a href="#/" className="selected">All</a>
-          </li>
-
-          <li>
-            <a href="#/active">Active</a>
-          </li>
-
-          <li>
-            <a href="#/completed">Completed</a>
-          </li>
-        </ul>
-
-        <button type="button" className="clear-completed">
-          Clear completed
-        </button>
-      </footer>
+      {!!todos.length && (
+        <>
+          <section className="main">
+            <input
+              type="checkbox"
+              id="toggle-all"
+              className="toggle-all"
+              data-cy="toggleAll"
+              onClick={handleToggleAll}
+            />
+            <label htmlFor="toggle-all">Mark all as complete</label>
+
+            <Todolist
+              todos={filteredTodos}
+            />
+          </section>
+
+          <footer className="footer" data-cy="todosFilter">
+            <span className="todo-count" data-cy="todosCounter">
+              {todoCount === 1
+                ? `${todoCount} item left`
+                : `${todoCount} items left`}
+            </span>
+
+            <TodoFilter
+              filter={filter}
+              setFilter={setFilter}
+            />
+
+            {completedTodos && (
+              <button
+                type="button"
+                className="clear-completed"
+                onClick={handleClearCompleted}
+              >
+                Clear completed
+              </button>
+            )}
+          </footer>
+        </>
+      )}
     </div>
   );
 };

src/components/TodoFilter.tsx

@@ -0,0 +1,47 @@
+import React from 'react';
+import { Filter } from '../types/Filter';
+
+type Props = {
+  filter: Filter;
+  setFilter: (filter: Filter) => void ;
+};
+
+export const TodoFilter: React.FC<Props> = ({ filter, setFilter }) => {
+  const onFilterChange = (status: Filter) => () => {
+    setFilter(status);
+  };
+
+  return (
+    <ul className="filters">
+      <li>
+        <a
+          href="#/"
+          className={filter === 'all' ? 'selected' : ''}
+          onClick={onFilterChange(Filter.All)}
+        >
+          All
+        </a>
+      </li>
+
+      <li>
+        <a
+          href="#/active"
+          className={filter === 'active' ? 'selected' : ''}
+          onClick={onFilterChange(Filter.Active)}
+        >
+          Active
+        </a>
+      </li>
+
+      <li>
+        <a
+          href="#/completed"
+          className={filter === 'completed' ? 'selected' : ''}
+          onClick={onFilterChange(Filter.Completed)}
+        >
+          Completed
+        </a>
+      </li>
+    </ul>
+  );
+};

src/components/TodoItem.tsx

@@ -0,0 +1,115 @@
+import React, {
+  useContext,
+  useEffect,
+  useRef,
+  useState,
+} from 'react';
+import cn from 'classnames';
+import { Todo } from '../types/Todo';
+import { TodosContext } from './TodosContext';
+
+type Props = {
+  todo: Todo;
+};
+
+export const TodoItem: React.FC<Props> = ({ todo }) => {
+  const { title, completed, id } = todo;
+
+  const todoContext = useContext(TodosContext);
+  const { toggleTodo, deleteTodo, editingTodo } = todoContext;
+
+  const [isEditing, setIsEditing] = useState(false);
+  const [editedTitle, setEditedTitle] = useState(title);
+
+  const handleToggleTodo = () => {
+    toggleTodo(id);
+  };
+
+  const handleDeleteTodo = () => {
+    deleteTodo(id);
+  };
+
+  const handleEdit = () => {
+    setIsEditing(true);
+  };
+
+  const handleEditChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setEditedTitle(event.target.value);
+  };
+
+  const handleEditSubmit = () => {
+    const trimmedTitle = editedTitle.trim();
+
+    if (trimmedTitle !== '') {
+      setEditedTitle(trimmedTitle);
+      setIsEditing(false);
+      editingTodo(id, trimmedTitle);
+    } else {
+      deleteTodo(id);
+    }
+  };
+
+  const handleEditCancel = () => {
+    setIsEditing(false);
+    setEditedTitle(title);
+  };
+
+  const handleKeyUp = (event: React.KeyboardEvent) => {
+    if (event.key === 'Enter') {
+      handleEditSubmit();
+    } else if (event.key === 'Escape') {
+      handleEditCancel();
+    }
+  };
+
+  const inputField = useRef<HTMLInputElement>(null);
+
+  useEffect(() => {
+    if (inputField.current) {
+      inputField.current.focus();
+    }
+  }, [isEditing]);
+
+  return (
+    <li className={cn({
+      completed,
+      editing: isEditing,
+    })}
+    >
+      {!isEditing ? (
+        <div className="view">
+          <input
+            type="checkbox"
+            className="toggle"
+            id={`toggle-${id}`}
+            checked={completed}
+            onChange={handleToggleTodo}
+          />
+
+          <label onDoubleClick={handleEdit}>
+            {title}
+          </label>
+
+          <button
+            type="button"
+            className="destroy"
+            data-cy="deleteTodo"
+            aria-label="deleteTodo"
+            onClick={handleDeleteTodo}
+          />
+        </div>
+      ) : (
+        <input
+          type="text"
+          ref={inputField}
+          className="edit"
+          value={editedTitle}
+          placeholder="Empty todo will be deleted"
+          onChange={handleEditChange}
+          onBlur={handleEditSubmit}
+          onKeyUp={handleKeyUp}
+        />
+      )}
+    </li>
+  );
+};

src/components/TodoList.tsx

@@ -0,0 +1,20 @@
+import React from 'react';
+import { TodoItem } from './TodoItem';
+import { Todo } from '../types/Todo';
+
+type Props = {
+  todos: Todo[];
+};
+
+export const Todolist: React.FC<Props> = ({ todos }) => {
+  return (
+    <ul className="todo-list" data-cy="todosList">
+      {todos.map((todo: Todo) => (
+        <TodoItem
+          key={todo.id}
+          todo={todo}
+        />
+      ))}
+    </ul>
+  );
+};