draft version

src/App.tsx

@@ -1,156 +1,35 @@
+//#region lint exception
+/* eslint-disable react-hooks/rules-of-hooks */
+/* eslint-disable jsx-a11y/label-has-associated-control */
 /* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+//#endregion
+import React, { useMemo, useState } from 'react';
+import { FilterStatus } from './types/FilterStatus';
+import { getFilteredTodos } from './utils/getFilteredTodos';
+import { Header } from './components/Header';
+import { TodoList } from './components/TodoList/TodoList';
+import { Footer } from './components/Footer/Footer';
+import { useGlobalState } from './context/Store';
 
 export const App: React.FC = () => {
+  const [filter, setFilter] = useState(FilterStatus.All);
+  const todos = useGlobalState();
+
+  const filteredTodos = useMemo(
+    () => getFilteredTodos(todos, filter),
+    [filter, todos],
+  );
+
   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>
+        <Header />
 
-            <a
-              href="#/completed"
-              className="filter__link"
-              data-cy="FilterLinkCompleted"
-            >
-              Completed
-            </a>
-          </nav>
+        <TodoList filteredTodos={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 && <Footer filter={filter} onFilter={setFilter} />}
       </div>
     </div>
   );

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 968;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const postTodo = (todo: Omit<Todo, 'id'>) => {
+  return client.post<Todo>(`/todos`, todo);
+};
+
+export const deleteTodo = (todoId: number) => {
+  return client.delete<Todo>(`/todos/${todoId}`);
+};
+
+export const patchTodo = (id: number, todoData: Partial<Todo>) => {
+  return client.patch<Todo>(`/todos/${id}`, todoData);
+};

src/components/Footer/Footer.tsx

@@ -0,0 +1,61 @@
+import React from 'react';
+import { FilterStatus } from '../../types/FilterStatus';
+import cn from 'classnames';
+import { useDispatch, useGlobalState } from '../../context/Store';
+
+type Props = {
+  filter: FilterStatus;
+  onFilter: (filter: FilterStatus) => void;
+};
+
+export const Footer: React.FC<Props> = ({ filter, onFilter }) => {
+  const todos = useGlobalState();
+  const dispatch = useDispatch();
+
+  const activeTodos = todos.filter(todo => !todo.completed).length;
+
+  const haveCompletedTodos = todos.some(todo => todo.completed);
+
+  const handleClearCompleted = () =>
+    todos
+      .filter(todo => todo.completed)
+      .forEach(todo => dispatch({ type: 'delete', payload: todo.id }));
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {`${activeTodos} items left`}
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {Object.values(FilterStatus).map(filterStatus => (
+          <a
+            key={filterStatus}
+            href={
+              filterStatus === FilterStatus.All
+                ? '#/'
+                : `#/${filterStatus.toLowerCase()}`
+            }
+            className={cn('filter__link', {
+              selected: filter === filterStatus,
+            })}
+            data-cy={`FilterLink${filterStatus}`}
+            onClick={() => onFilter(filterStatus)}
+          >
+            {filterStatus}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={!haveCompletedTodos}
+        onClick={handleClearCompleted}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};

src/components/Footer/index.ts

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

src/components/Header/Header.tsx

@@ -0,0 +1,77 @@
+import React, { FC, useEffect, useRef, useState } from 'react';
+import cn from 'classnames';
+
+import { useDispatch, useGlobalState } from '../../context/Store';
+
+export const Header: FC = () => {
+  const titleField = useRef<HTMLInputElement>(null);
+  const [title, setTitle] = useState('');
+  const [isSubmitting, setIsSubmiting] = useState(false);
+
+  const todos = useGlobalState();
+  const dispatch = useDispatch();
+
+  const areAllTodosCompleted = todos.every(todo => todo.completed);
+
+  const handleToggleAll = () => {
+    const haveActive = todos.some(todo => !todo.completed);
+    const todosToUpdate = haveActive
+      ? todos.filter(todo => !todo.completed)
+      : todos;
+
+    todosToUpdate.forEach(todo =>
+      dispatch({ type: 'update', payload: { ...todo, completed: haveActive } }),
+    );
+  };
+
+  const handleSubmit = (event: React.FormEvent<HTMLFormElement>) => {
+    event.preventDefault();
+
+    setIsSubmiting(true);
+
+    const newTitle = title.trim();
+
+    if (newTitle) {
+      try {
+        dispatch({ type: 'add', payload: newTitle });
+        setTitle('');
+      } catch (error) {
+        throw error;
+      } finally {
+        setIsSubmiting(false);
+      }
+    }
+  };
+
+  useEffect(() => {
+    titleField.current?.focus();
+  }, [todos, isSubmitting]);
+
+  return (
+    <header className="todoapp__header">
+      {!!todos.length && (
+        <button
+          type="button"
+          className={cn('todoapp__toggle-all', {
+            active: areAllTodosCompleted,
+          })}
+          data-cy="ToggleAllButton"
+          onClick={handleToggleAll}
+        />
+      )}
+
+      <form onSubmit={handleSubmit}>
+        <input
+          ref={titleField}
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          value={title}
+          onChange={event => setTitle(event.target.value)}
+          disabled={isSubmitting}
+        />
+      </form>
+    </header>
+  );
+};

src/components/Header/index.ts

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