Develop

src/App.tsx

@@ -1,26 +1,110 @@
-/* eslint-disable max-len */
+/* eslint-disable jsx-a11y/label-has-associated-control */
 /* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
-import { UserWarning } from './UserWarning';
+import { FC, useEffect, useMemo, useState } from 'react';
 
-const USER_ID = 0;
+import { Todo } from './types/Todo';
+import { Errors } from './types/Errors';
+import { FilterBy } from './types/FilterBy';
 
-export const App: React.FC = () => {
-  if (!USER_ID) {
-    return <UserWarning />;
-  }
+import { getFilteredTodos } from './utils/getFilteredTodos';
+import { handleFetchTodos } from './utils/handleFetchTodos';
+import { handleDeleteTodos } from './utils/handleDeleteTodos';
+
+import { Header, TodoList, Footer, ErrorMessage, TodoItem } from './components';
+import { handleUpdateTodos } from './utils/handleUpdateTodos';
+
+export const App: FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [newTodoData, setNewTodoData] = useState<Partial<Todo>>({});
+
+  const [idsForDelete, setIdsForDelete] = useState<number[]>([]);
+  const [idsForUpdate, setIdsForUpdate] = useState<number[]>([]);
+
+  const [error, setError] = useState<Errors>(Errors.DEFAULT);
+
+  const [selectedFilter, setSelectedFilter] = useState<FilterBy>(FilterBy.ALL);
+
+  const completedTodosId = useMemo(() => {
+    return getFilteredTodos(todos, FilterBy.COMPLETED).map(todo => todo.id);
+  }, [todos]);
+
+  const numberOfActiveTodos = useMemo(() => {
+    return getFilteredTodos(todos, FilterBy.ACTIVE).length;
+  }, [todos]);
+
+  const filteredTodos = useMemo(() => {
+    return getFilteredTodos(todos, selectedFilter);
+  }, [todos, selectedFilter]);
+
+  useEffect(() => {
+    if (idsForDelete.length) {
+      handleDeleteTodos(idsForDelete, setTodos, setIdsForDelete, setError);
+    }
+  }, [idsForDelete]);
+
+  useEffect(() => {
+    if (idsForUpdate.length) {
+      handleUpdateTodos(
+        idsForUpdate,
+        newTodoData,
+        setTodos,
+        setIdsForUpdate,
+        setError,
+      );
+    }
+  }, [idsForUpdate, newTodoData]);
+
+  useEffect(() => {
+    handleFetchTodos(setTodos, setError);
+  }, []);
 
   return (
-    <section className="section container">
-      <p className="title is-4">
-        Copy all you need from the prev task:
-        <br />
-        <a href="https://github.com/mate-academy/react_todo-app-add-and-delete#react-todo-app-add-and-delete">
-          React Todo App - Add and Delete
-        </a>
-      </p>
-
-      <p className="subtitle">Styles are already copied</p>
-    </section>
+    <div className="todoapp">
+      <h1 className="todoapp__title">todos</h1>
+
+      <div className="todoapp__content">
+        <Header
+          todos={todos}
+          tempTodo={tempTodo}
+          numberOfActiveTodos={numberOfActiveTodos}
+          setTodos={setTodos}
+          setError={setError}
+          setTempTodo={setTempTodo}
+          setIdsForUpdate={setIdsForUpdate}
+          setNewTodoData={setNewTodoData}
+        />
+
+        <TodoList
+          todos={filteredTodos}
+          idsForDelete={idsForDelete}
+          idsForUpdate={idsForUpdate}
+          setIdsForDelete={setIdsForDelete}
+          setIdsForUpdate={setIdsForUpdate}
+          setNewTodoData={setNewTodoData}
+        />
+
+        {tempTodo && (
+          <TodoItem
+            todo={tempTodo}
+            setIdsForDelete={setIdsForDelete}
+            setIdsForUpdate={setIdsForUpdate}
+            setNewTodoData={setNewTodoData}
+          />
+        )}
+
+        {!!todos.length && (
+          <Footer
+            selectedFilter={selectedFilter}
+            completedTodosId={completedTodosId}
+            numberOfActiveTodos={numberOfActiveTodos}
+            setSelectedFilter={setSelectedFilter}
+            setIdsForDelete={setIdsForDelete}
+          />
+        )}
+      </div>
+
+      <ErrorMessage error={error} setError={setError} />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,24 @@
+import { Todo } from '../types/Todo';
+
+import { client } from '../utils/fetchClient';
+
+import { USER_ID } from '../constants/constants';
+
+export const getTodos = (): Promise<Todo[]> => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const addTodo = (newTodo: Omit<Todo, 'id'>): Promise<Todo> => {
+  return client.post<Todo>('/todos', newTodo);
+};
+
+export const deleteTodo = (id: number): Promise<unknown> => {
+  return client.delete(`/todos/${id}`);
+};
+
+export const updateTodo = (
+  id: number,
+  updates: Partial<Todo>,
+): Promise<Todo> => {
+  return client.patch<Todo>(`/todos/${id}`, updates);
+};

src/components/ErrorMessage/ErrorMessage.tsx

@@ -0,0 +1,33 @@
+import { FC } from 'react';
+import cn from 'classnames';
+
+import { Errors } from '../../types/Errors';
+import { handleError } from '../../utils/handleError';
+
+interface Props {
+  error: Errors;
+  setError: (error: Errors) => void;
+}
+
+export const ErrorMessage: FC<Props> = ({ error, setError }) => {
+  const handleClose = () => {
+    handleError(Errors.DEFAULT, setError);
+  };
+
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={cn('notification is-danger is-light has-text-weight-normal', {
+        hidden: !error,
+      })}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={handleClose}
+      />
+      {error}
+    </div>
+  );
+};

src/components/ErrorMessage/index.ts

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

src/components/Footer/Footer.tsx

@@ -0,0 +1,58 @@
+import { FC } from 'react';
+import cn from 'classnames';
+
+import { FilterBy } from '../../types/FilterBy';
+
+interface Props {
+  selectedFilter: FilterBy;
+  completedTodosId: number[];
+  numberOfActiveTodos: number;
+  setSelectedFilter: (filter: FilterBy) => void;
+  setIdsForDelete: (ids: number[]) => void;
+}
+
+const Footer: FC<Props> = ({
+  selectedFilter,
+  completedTodosId,
+  numberOfActiveTodos,
+  setSelectedFilter,
+  setIdsForDelete,
+}) => {
+  const filters = Object.values(FilterBy);
+
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {numberOfActiveTodos} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {filters.map(filter => (
+          <a
+            key={filter}
+            href="#/"
+            className={cn('filter__link', {
+              selected: filter === selectedFilter,
+            })}
+            data-cy={`FilterLink${filter}`}
+            onClick={() => setSelectedFilter(filter)}
+          >
+            {filter}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        onClick={() => setIdsForDelete(completedTodosId)}
+        disabled={!completedTodosId.length}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};
+
+export default Footer;

src/components/Footer/index.ts

@@ -0,0 +1 @@
+export { default as Footer } from './Footer';

src/components/Header/Header.tsx

@@ -0,0 +1,116 @@
+import { ChangeEvent, FC, FormEvent, useEffect, useRef, useState } from 'react';
+import cn from 'classnames';
+
+import { Todo } from '../../types/Todo';
+import { Errors } from '../../types/Errors';
+
+import { addTodo } from '../../api/todos';
+import { handleError } from '../../utils/handleError';
+
+import { USER_ID } from '../../constants/constants';
+
+interface Props {
+  todos: Todo[];
+  tempTodo: Todo | null;
+  numberOfActiveTodos: number;
+  setTodos: (updateTodos: (todos: Todo[]) => Todo[]) => void;
+  setError: (error: Errors) => void;
+  setTempTodo: (todo: Todo | null) => void;
+  setIdsForUpdate: (prevIds: (ids: number[]) => number[]) => void;
+  setNewTodoData: (newData: Partial<Todo>) => void;
+}
+
+const Header: FC<Props> = ({
+  todos,
+  tempTodo,
+  numberOfActiveTodos,
+  setTodos,
+  setError,
+  setTempTodo,
+  setIdsForUpdate,
+  setNewTodoData,
+}) => {
+  const [title, setTitle] = useState('');
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  const handleChangeTitle = (event: ChangeEvent<HTMLInputElement>) => {
+    setTitle(event.target.value.trimStart());
+  };
+
+  const handleFormSubmit = async (event: FormEvent<HTMLFormElement>) => {
+    event.preventDefault();
+
+    const formattedTitle = title.trim();
+
+    if (!formattedTitle) {
+      handleError(Errors.TITLE_ERROR, setError);
+
+      return;
+    }
+
+    const newTodo: Omit<Todo, 'id'> = {
+      userId: USER_ID,
+      title: formattedTitle,
+      completed: false,
+    };
+
+    const tmpTodo: Todo = {
+      id: 0,
+      ...newTodo,
+    };
+
+    setTempTodo(tmpTodo);
+
+    try {
+      const todo = await addTodo(newTodo);
+
+      setTodos(currentTodos => [...currentTodos, todo]);
+      setTitle('');
+      setTempTodo(null);
+    } catch {
+      setTempTodo(null);
+      handleError(Errors.ADD_TODO, setError);
+    }
+  };
+
+  const handleToggleAll = () => {
+    const isAllTodosCompleted = todos.every(todo => todo.completed);
+
+    todos.map(todo => {
+      setIdsForUpdate(currentIds => [...currentIds, todo.id]);
+      setNewTodoData({ completed: isAllTodosCompleted ? false : true });
+    });
+  };
+
+  useEffect(() => {
+    inputRef.current?.focus();
+  }, [todos, tempTodo]);
+
+  return (
+    <header className="todoapp__header">
+      <button
+        type="button"
+        className={cn('todoapp__toggle-all', {
+          active: !numberOfActiveTodos,
+        })}
+        data-cy="ToggleAllButton"
+        onClick={handleToggleAll}
+      />
+
+      <form onSubmit={handleFormSubmit}>
+        <input
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          ref={inputRef}
+          value={title}
+          onChange={handleChangeTitle}
+          disabled={!!tempTodo}
+        />
+      </form>
+    </header>
+  );
+};
+
+export default Header;

src/components/Header/index.ts

@@ -0,0 +1 @@
+export { default as Header } from './Header';