todo app

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

src/App.tsx

@@ -1,156 +1,34 @@
 /* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useContext, useMemo, useState } from 'react';
+
+import { Header } from './components/Header';
+import { Main as TodoList } from './components/todoList';
+import { Footer } from './components/Footer';
+import { IsActiveTab } from './types';
+import { TodosContext } from './Store';
+import { filterTodos } from './utils/filterTodos';
 
 export const App: React.FC = () => {
+  const { todos } = useContext(TodosContext);
+  const [isActive, setIsActiveTab] = useState(IsActiveTab.All);
+
+  const visibleTodos = useMemo(
+    () => filterTodos(todos, isActive),
+    [todos, isActive],
+  );
+
   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>
+        {todos.length > 0 && <TodoList filteredTodos={visibleTodos} />}
 
-          {/* 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 && (
+          <Footer isActive={isActive} setIsActiveTab={setIsActiveTab} />
+        )}
       </div>
     </div>
   );

src/Store.tsx

@@ -0,0 +1,42 @@
+import { createContext, useMemo, useState } from 'react';
+import { Todo } from './types';
+import React from 'react';
+
+function useLocalStorage(key: string, defaultValue: Todo[]) {
+  const [todos, setTodos] = useState(() => {
+    const savedTodos = localStorage.getItem(key);
+
+    if (savedTodos === null) {
+      localStorage.setItem('todos', JSON.stringify(defaultValue));
+
+      return JSON.parse(localStorage.getItem('todos') as string);
+    } else {
+      return JSON.parse(savedTodos);
+    }
+  });
+
+  function saveTodos(newTodos: Todo[]) {
+    setTodos(newTodos);
+
+    localStorage.setItem(key, JSON.stringify(newTodos));
+  }
+
+  return [todos, saveTodos] as const;
+}
+
+export const TodosContext = createContext({
+  todos: [],
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  setTodos: (_newTodos: Todo[]) => {},
+});
+
+export const TodosProvider = ({ children }: { children: React.ReactNode }) => {
+  const [todos, setTodos] = useLocalStorage('todos', []);
+
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  const value = useMemo(() => ({ todos, setTodos }), [todos]);
+
+  return (
+    <TodosContext.Provider value={value}>{children}</TodosContext.Provider>
+  );
+};

src/UserWarning.tsx

@@ -0,0 +1,15 @@
+import React from 'react';
+
+export const UserWarning: React.FC = () => (
+  <section className="section">
+    <p className="box is-size-3">
+      Please get your <b> userId </b>{' '}
+      <a href="https://mate-academy.github.io/react_student-registration">
+        here
+      </a>{' '}
+      and save it in the app <pre>const USER_ID = ...</pre>
+      All requests to the API must be sent with this
+      <b> userId.</b>
+    </p>
+  </section>
+);

src/components/Footer.tsx

@@ -0,0 +1,58 @@
+import React, { useContext } from 'react';
+import classNames from 'classnames';
+import { PropsFooter, Todo, IsActiveTab } from '../types';
+import { TodosContext } from '../Store';
+
+export const Footer: React.FC<PropsFooter> = ({ isActive, setIsActiveTab }) => {
+  const { todos, setTodos } = useContext(TodosContext);
+
+  function handleClearCompleted() {
+    const newList = todos.filter((todo: Todo) => !todo.completed);
+
+    setTodos(newList);
+  }
+
+  const activeTodos = todos.filter((todo: Todo) => !todo.completed);
+  const completedTodos = todos.some((todo: Todo) => todo.completed);
+
+  const tabs = Object.values(IsActiveTab);
+
+  return (
+    // {/* Hide the footer if there are no todos */}
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {`${activeTodos.length} items left`}
+      </span>
+
+      {/* Active link should have the 'selected' class */}
+      <nav className="filter" data-cy="Filter">
+        {tabs.map(tab => (
+          <a
+            key={tab}
+            href={`#/${tab.toLowerCase()}`}
+            className={classNames('filter__link', {
+              selected: isActive === tab,
+            })}
+            data-cy={`FilterLink${tab}`}
+            onClick={() => {
+              setIsActiveTab(tab);
+            }}
+          >
+            {tab}
+          </a>
+        ))}
+      </nav>
+
+      {/* this button should be disabled if there are no completed todos */}
+      <button
+        disabled={completedTodos ? false : true}
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        onClick={handleClearCompleted}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};

src/components/Header.tsx

@@ -0,0 +1,64 @@
+import React, { useContext, useState } from 'react';
+import classNames from 'classnames';
+import { Todo } from '../types';
+import { TodosContext } from '../Store';
+
+export const Header: React.FC = () => {
+  const [query, setQuery] = useState('');
+  const { todos, setTodos } = useContext(TodosContext);
+
+  function handleSubmit(event: React.FormEvent<HTMLFormElement>) {
+    event.preventDefault();
+
+    if (query) {
+      setTodos([
+        ...todos,
+        { id: `${+new Date()}`, title: query.trim(), completed: false },
+      ]);
+    }
+
+    setQuery('');
+  }
+
+  const isAllCompleted = todos.every((todo: Todo) => todo.completed === true);
+
+  function handleToggle(completed: boolean) {
+    const newList = todos.map((todo: Todo) => {
+      return { ...todo, completed: !completed };
+    });
+
+    setTodos(newList);
+  }
+
+  return (
+    <header className="todoapp__header">
+      {/* this button should have `active` class only if all todos are completed */}
+      {todos.length > 0 && (
+        <button
+          defaultChecked={isAllCompleted ? true : false}
+          type="button"
+          className={classNames('todoapp__toggle-all', {
+            active: isAllCompleted,
+          })}
+          data-cy="ToggleAllButton"
+          onClick={() => handleToggle(isAllCompleted)}
+        />
+      )}
+
+      {/* Add a todo on form submit */}
+      <form onSubmit={event => handleSubmit(event)}>
+        <input
+          ref={input => input && input.focus()}
+          value={query}
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          onChange={event => {
+            setQuery(event.target.value.trimStart());
+          }}
+        />
+      </form>
+    </header>
+  );
+};