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mate-academy · Aug 20, 2024 · 27ded53 · 27ded53
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diff --git a/package-lock.json b/package-lock.json
diff --git a/src/App.tsx b/src/App.tsx
@@ -1,156 +1,129 @@
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useCallback, useEffect, useRef } from 'react';
+import { useGlobalDispatch, useGlobalState } from './context/store';
+import { TodoItem } from './components/TodoItem';
+import { TodoFilter } from './components/TodoFilter';
+import { Todo } from './types/Todo';
+import classNames from 'classnames';
+import { handleInputChange, setInputValue } from './helpers/InputHelpers/Input';
+
+import {
+  loadTodosFromLocalStorage,
+  filterTodos,
+  toggleAllTodos,
+  deleteCompletedTodos,
+} from './services/TodoService';
 
 export const App: React.FC = () => {
+  const { todos, inputValue, filterStatus } = useGlobalState();
+  const dispatch = useGlobalDispatch();
+  const inputElementRef = useRef<HTMLInputElement>(null);
+
+  const filteredTodos = filterTodos(todos, filterStatus);
+  const completedTodos = todos.filter(todo => todo.completed);
+  const activeTodos = todos.filter(todo => !todo.completed);
+  const allCompleted = completedTodos.length === todos.length;
+
+  const setTodos = useCallback(
+    (value: Todo[]) => {
+      dispatch({ type: 'setTodos', payload: value });
+    },
+    [dispatch],
+  );
+
+  const handlePostTodo = (event: React.FormEvent<HTMLFormElement>) => {
+    event.preventDefault();
+    const preparedInputValue = inputValue.trim();
+
+    if (!preparedInputValue.length) {
+      return;
+    }
+
+    const newTodo: Todo = {
+      id: +new Date(),
+      title: preparedInputValue,
+      completed: false,
+    };
+
+    dispatch({ type: 'setTodo', payload: newTodo });
+    setInputValue(dispatch, '');
+  };
+
+  const handleDeleteAllCompleted = () => {
+    const remainingTodos = deleteCompletedTodos(todos);
+
+    setTodos(remainingTodos);
+    inputElementRef.current?.focus();
+  };
+
+  const handleToggleAll = () => {
+    const toggledTodos = toggleAllTodos(todos, allCompleted);
+
+    setTodos(toggledTodos);
+    inputElementRef.current?.focus();
+  };
+
+  useEffect(() => {
+    const todosFromStorage = loadTodosFromLocalStorage();
+
+    setTodos(todosFromStorage);
+    inputElementRef.current?.focus();
+  }, [setTodos]);
+
   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>
+          {!!todos.length && (
+            <button
+              onClick={handleToggleAll}
+              type="button"
+              className={classNames('todoapp__toggle-all', {
+                active: allCompleted,
+              })}
+              data-cy="ToggleAllButton"
+            />
+          )}
+          <form onSubmit={handlePostTodo}>
             <input
               data-cy="NewTodoField"
               type="text"
               className="todoapp__new-todo"
               placeholder="What needs to be done?"
+              value={inputValue}
+              onChange={e =>
+                handleInputChange(e, value => setInputValue(dispatch, value))
+              }
+              ref={inputElementRef}
             />
           </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>
+          {filteredTodos.map(todo => (
+            <TodoItem
+              key={todo.id}
+              todo={todo}
+              inputElement={inputElementRef}
+            />
+          ))}
         </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"
+        {!!todos.length && (
+          <footer className="todoapp__footer" data-cy="Footer">
+            <span className="todo-count" data-cy="TodosCounter">
+              {`${activeTodos.length} items left`}
+            </span>
+            <TodoFilter />
+            <button
+              disabled={!completedTodos.length}
+              type="button"
+              className="todoapp__clear-completed"
+              data-cy="ClearCompletedButton"
+              onClick={handleDeleteAllCompleted}
             >
-              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>
+              Clear completed
+            </button>
+          </footer>
+        )}
       </div>
     </div>
   );

diff --git a/src/components/TodoFilter.tsx b/src/components/TodoFilter.tsx
@@ -0,0 +1,41 @@
+import { useGlobalDispatch, useGlobalState } from '../context/store';
+import { Filter } from '../types/Filter';
+import classNames from 'classnames';
+import React from 'react';
+
+export const TodoFilter: React.FC = () => {
+  const { filterStatus } = useGlobalState();
+  const dispatch = useGlobalDispatch();
+
+  const handleFilter = (event: React.MouseEvent<HTMLAnchorElement>) => {
+    const filterParam = event.currentTarget.textContent;
+
+    if (filterParam === filterStatus) {
+      return;
+    }
+
+    dispatch({ type: 'setFilterStatus', payload: filterParam as Filter });
+  };
+
+  const filterParams = Object.values(Filter);
+
+  return (
+    <nav className="filter" data-cy="Filter">
+      {filterParams.map(param => {
+        return (
+          <a
+            key={param}
+            href={`#/${param.toLocaleLowerCase()}`}
+            className={classNames('filter__link', {
+              selected: filterStatus === param,
+            })}
+            data-cy={`FilterLink${param}`}
+            onClick={handleFilter}
+          >
+            {param}
+          </a>
+        );
+      })}
+    </nav>
+  );
+};