add task solution

src/App.tsx

@@ -1,156 +1,20 @@
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useContext } from 'react';
+import { TodoList } from './components/TodoList';
+import { TodoHeader } from './components/TodoHeader';
+import { TodoFooter } from './components/TodoFooter';
+import { TodosContext } from './context';
 
 export const App: React.FC = () => {
+  const { todos } = useContext(TodosContext);
+
   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>
+        <TodoHeader />
+        <TodoList />
+        {todos.length > 0 && <TodoFooter />}
       </div>
     </div>
   );

src/components/TodoFooter/TodoFooter.tsx

@@ -0,0 +1,83 @@
+import React, { useContext } from 'react';
+import { TodosContext } from '../../context';
+import { Filter } from '../../enums/Filter';
+import classNames from 'classnames';
+
+export const TodoFooter: React.FC = () => {
+  // #regions vars from contexts
+
+  const { todos, activeTodos, filter, setFilter, deleteHandler } =
+    useContext(TodosContext);
+
+  // #endregion
+  // #region handlers
+
+  const deleteCompleted = () => {
+    const idsToDelete: number[] = [];
+
+    todos.forEach(todo => {
+      const { completed, id } = todo;
+
+      if (completed) {
+        idsToDelete.push(id);
+      }
+    });
+
+    deleteHandler(idsToDelete);
+  };
+
+  // #endregion
+
+  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="#/"
+          className={classNames('filter__link', {
+            selected: filter === Filter.all,
+          })}
+          data-cy="FilterLinkAll"
+          onClick={() => setFilter(Filter.all)}
+        >
+          {Filter.all}
+        </a>
+
+        <a
+          href="#/active"
+          className={classNames('filter__link', {
+            selected: filter === Filter.active,
+          })}
+          data-cy="FilterLinkActive"
+          onClick={() => setFilter(Filter.active)}
+        >
+          {Filter.active}
+        </a>
+
+        <a
+          href="#/completed"
+          className={classNames('filter__link', {
+            selected: filter === Filter.completed,
+          })}
+          data-cy="FilterLinkCompleted"
+          onClick={() => setFilter(Filter.completed)}
+        >
+          {Filter.completed}
+        </a>
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={activeTodos === todos.length}
+        onClick={deleteCompleted}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};

src/components/TodoFooter/index.ts

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

src/components/TodoHeader/TodoHeader.tsx

@@ -0,0 +1,66 @@
+import React, { useContext } from 'react';
+import { TodosContext } from '../../context';
+import classNames from 'classnames';
+import { myLocalStorage } from '../../localStorage';
+import { Names } from '../../enums/Filter';
+
+export const TodoHeader: React.FC = () => {
+  // #region vars from contexts
+
+  const {
+    todos,
+    activeTodos,
+    value,
+    headerInputRef,
+    setTodos,
+    setValue,
+    onSubmit,
+  } = useContext(TodosContext);
+
+  // #endregion
+  // #region handlers
+
+  const toogleAll = () => {
+    const updatedTodos = todos.map(todo => {
+      const { completed } = todo;
+
+      if (activeTodos === 0 && completed) {
+        return { ...todo, completed: !completed };
+      }
+
+      return { ...todo, completed: true };
+    });
+
+    setTodos(updatedTodos);
+    myLocalStorage.setItem(Names.todos, JSON.stringify(updatedTodos));
+  };
+
+  // #endregion
+
+  return (
+    <header className="todoapp__header">
+      {todos.length > 0 && (
+        <button
+          type="button"
+          className={classNames('todoapp__toggle-all', {
+            active: activeTodos === 0 && activeTodos !== todos.length,
+          })}
+          data-cy="ToggleAllButton"
+          onClick={toogleAll}
+        />
+      )}
+
+      <form onSubmit={onSubmit}>
+        <input
+          ref={headerInputRef}
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          value={value}
+          onChange={event => setValue(event.target.value)}
+        />
+      </form>
+    </header>
+  );
+};

src/components/TodoHeader/index.ts

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