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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://Nazarin565.github.io/react_todo-app/) and add it to the PR description.

src/App.tsx

@@ -1,156 +1,23 @@
 /* eslint-disable jsx-a11y/control-has-associated-label */
 import React from 'react';
+import { TodoList } from './components/TodoList';
+import { Header } from './components/Header';
+import { Footer } from './components/Footer';
+import { useGlobalState } from './Store';
 
 export const App: React.FC = () => {
+  const { todos } = useGlobalState();
+
   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 />
 
-          {/* 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 />}
       </div>
     </div>
   );

src/Store.tsx

@@ -0,0 +1,140 @@
+import React, { useEffect, useReducer } from 'react';
+import { SelectedFilter } from './types/SelectedFilter';
+import { Todo } from './types/Todo';
+import { loadFromLocalStorage } from './utils/LocaleStorage';
+
+const data = loadFromLocalStorage();
+
+type State = {
+  todos: Todo[];
+  query: string;
+  filter: SelectedFilter;
+  editingTodoId: number | null;
+  currentTitle: string;
+};
+
+const initialState: State = {
+  todos: data,
+  query: '',
+  filter: SelectedFilter.ALL,
+  editingTodoId: null,
+  currentTitle: '',
+};
+
+type Action =
+  | { type: 'toogleAllChecked' }
+  | { type: 'addTodo'; payload: Todo }
+  | { type: 'setQuery'; payload: string }
+  | { type: 'deleteTodo'; payload: number }
+  | { type: 'massDelete'; payload: number[] }
+  | { type: 'changeCheckbox'; payload: number }
+  | { type: 'updateTodo'; payload: Todo }
+  | { type: 'setCurrentTitle'; payload: string }
+  | { type: 'setEditingTodoId'; payload: number | null }
+  | { type: 'setFilter'; payload: SelectedFilter };
+
+function reducer(state: State, action: Action): State {
+  switch (action.type) {
+    case 'toogleAllChecked':
+      const checked = state.todos.every(todo => todo.completed);
+
+      return {
+        ...state,
+        todos: [...state.todos.map(todo => ({ ...todo, completed: !checked }))],
+      };
+
+    case 'addTodo':
+      return {
+        ...state,
+        todos: [...state.todos, action.payload],
+      };
+
+    case 'setQuery':
+      return {
+        ...state,
+        query: action.payload,
+      };
+
+    case 'deleteTodo':
+      return {
+        ...state,
+        todos: [...state.todos.filter(todo => todo.id !== action.payload)],
+      };
+
+    case 'massDelete':
+      return {
+        ...state,
+        todos: [
+          ...state.todos.filter(todo => !action.payload.includes(todo.id)),
+        ],
+      };
+
+    case 'changeCheckbox':
+      return {
+        ...state,
+        todos: [
+          ...state.todos.map(todo =>
+            todo.id === action.payload
+              ? { ...todo, completed: !todo.completed }
+              : todo,
+          ),
+        ],
+      };
+
+    case 'updateTodo':
+      return {
+        ...state,
+        todos: [
+          ...state.todos.map(todo => {
+            return todo.id === action.payload.id
+              ? { ...todo, title: action.payload.title }
+              : todo;
+          }),
+        ],
+      };
+
+    case 'setCurrentTitle':
+      return {
+        ...state,
+        currentTitle: action.payload,
+      };
+
+    case 'setEditingTodoId':
+      return {
+        ...state,
+        editingTodoId: action.payload,
+      };
+
+    case 'setFilter':
+      return {
+        ...state,
+        filter: action.payload,
+      };
+  }
+}
+
+export const StateContext = React.createContext<State>(initialState);
+export const DispatchContext = React.createContext<React.Dispatch<Action>>(
+  () => {},
+);
+
+type Props = {
+  children: React.ReactNode;
+};
+
+export const GlobalStateProvider: React.FC<Props> = ({ children }) => {
+  const [state, dispatch] = useReducer(reducer, initialState);
+
+  useEffect(() => {
+    localStorage.setItem('todos', JSON.stringify(state.todos));
+  }, [state.todos]);
+
+  return (
+    <DispatchContext.Provider value={dispatch}>
+      <StateContext.Provider value={state}>{children}</StateContext.Provider>
+    </DispatchContext.Provider>
+  );
+};
+
+export const useGlobalState = () => React.useContext(StateContext);
+export const useGlobalDispatch = () => React.useContext(DispatchContext);

src/components/EditForm.tsx

@@ -0,0 +1,72 @@
+import { useEffect, useRef } from 'react';
+import { useGlobalDispatch, useGlobalState } from '../Store';
+import { Todo } from '../types/Todo';
+
+type Props = {
+  newTodo: Todo;
+};
+
+export const EditForm: React.FC<Props> = ({
+  newTodo: { id, title, completed },
+}) => {
+  const { currentTitle, editingTodoId } = useGlobalState();
+  const dispatch = useGlobalDispatch();
+
+  const editRef = useRef<HTMLInputElement>(null);
+
+  useEffect(() => {
+    if (editRef.current && editingTodoId) {
+      editRef.current.focus();
+    }
+  }, [editRef, editingTodoId]);
+
+  const handleUpdateTitle = (newTodo: Todo) => {
+    const trimmedTitle = currentTitle.trim();
+
+    if (!trimmedTitle) {
+      dispatch({ type: 'deleteTodo', payload: newTodo.id });
+    } else {
+      dispatch({
+        type: 'updateTodo',
+        payload: { ...newTodo, title: trimmedTitle },
+      });
+    }
+
+    dispatch({ type: 'setEditingTodoId', payload: null });
+  };
+
+  const handleUpdateTitleSubmit = (event: React.FormEvent, newTodo: Todo) => {
+    event.preventDefault();
+    handleUpdateTitle(newTodo);
+  };
+
+  const handleChange = (event: React.ChangeEvent<HTMLInputElement>) =>
+    dispatch({ type: 'setCurrentTitle', payload: event.target.value });
+
+  const handleKeyUp = (event: React.KeyboardEvent<HTMLInputElement>) => {
+    if (event.key === 'Escape') {
+      dispatch({ type: 'setCurrentTitle', payload: title });
+      dispatch({ type: 'setEditingTodoId', payload: null });
+    }
+  };
+
+  return (
+    <form
+      onSubmit={event =>
+        handleUpdateTitleSubmit(event, { id, title, completed })
+      }
+    >
+      <input
+        ref={editRef}
+        data-cy="TodoTitleField"
+        type="text"
+        className="todo__title-field"
+        placeholder="Empty todo will be deleted"
+        value={currentTitle}
+        onBlur={() => handleUpdateTitle({ id, title, completed })}
+        onChange={handleChange}
+        onKeyUp={handleKeyUp}
+      />
+    </form>
+  );
+};