React Todo App with API task

package.json

@@ -9,13 +9,14 @@
     "@fortawesome/fontawesome-free": "^6.5.2",
     "bulma": "^1.0.1",
     "classnames": "^2.5.1",
+    "clsx": "^2.1.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-transition-group": "^4.4.5"
   },
   "devDependencies": {
     "@cypress/react18": "^2.0.1",
-    "@mate-academy/scripts": "^1.8.5",
+    "@mate-academy/scripts": "^2.1.3",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",
     "@types/node": "^20.14.10",

src/App.tsx

@@ -1,26 +1,259 @@
-/* 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 React, { useEffect, useRef, useState } from 'react';
 import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import {
+  createTodo,
+  deleteTodo,
+  getTodos,
+  updateTodo,
+  USER_ID,
+} from './api/todos';
+import { Todo } from './types/Todo';
+import { TODO_STATUS, TodoStatus } from './types/TodoStatus';
+import { ErrorNotification } from './components/ErrorNotification';
+import { TodoList } from './components/TodoList';
+import { TodoFooter } from './components/TodoFooter';
+import { TodoHeader } from './components/TodoHeader';
+import { ErrorMessage } from './types/ErrorMessage';
 
 export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+
+  const [todoQuery, setTodoQuery] = useState('');
+  const [isAdding, setIsAdding] = useState(false);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const newTodoRef = useRef<HTMLInputElement>(null);
+  const focusNewTodo = () => {
+    setTimeout(() => newTodoRef.current?.focus(), 0);
+  };
+
+  const [editedTodoId, setEditedTodoId] = useState<number | null>(null);
+
+  const [todosStatusFilter, setTodoStatusFilter] = useState<TodoStatus>(
+    TODO_STATUS.ALL,
+  );
+  const [loadingTodoIds, setloadingTodoIds] = useState<number[]>([]);
+  const [errorMessage, setErrorMessage] = useState<ErrorMessage | null>(null);
+
+  useEffect(() => {
+    getTodos()
+      .then(data => {
+        setTodos(data);
+      })
+      .catch(() => {
+        setErrorMessage(ErrorMessage.LoadTodos);
+      });
+  }, []);
+
+  useEffect(() => {
+    if (!errorMessage) {
+      return;
+    }
+
+    const timerId = setTimeout(() => {
+      setErrorMessage(null);
+    }, 3000);
+
+    return () => {
+      clearTimeout(timerId);
+    };
+  }, [errorMessage]);
+
+  const {
+    active: todosActiveCount,
+    completed: todosCompletedCount,
+    filtered: filteredTodos,
+  } = todos.reduce(
+    (acc, todo) => {
+      const active = acc.active + (todo.completed ? 0 : 1);
+      const completed = acc.completed + (todo.completed ? 1 : 0);
+
+      const shouldInclude =
+        todosStatusFilter === TODO_STATUS.ALL ||
+        (todosStatusFilter === TODO_STATUS.ACTIVE && !todo.completed) ||
+        (todosStatusFilter === TODO_STATUS.COMPLETED && todo.completed);
+
+      return {
+        active,
+        completed,
+        filtered: shouldInclude ? [...acc.filtered, todo] : acc.filtered,
+      };
+    },
+    { active: 0, completed: 0, filtered: [] as Todo[] },
+  );
+
+  const isAllCompleted =
+    todos.length > 0 && todos.length === todosCompletedCount;
+
+  const handleAddTodo = async () => {
+    setErrorMessage(null);
+
+    const trimmed = todoQuery.trim();
+
+    if (!trimmed) {
+      setErrorMessage(ErrorMessage.EmptyTitle);
+
+      return;
+    }
+
+    if (isAdding) {
+      return;
+    }
+
+    setIsAdding(true);
+    setTempTodo({
+      id: -1,
+      userId: USER_ID,
+      title: trimmed,
+      completed: false,
+    });
+
+    try {
+      const createdTodo = await createTodo({
+        userId: USER_ID,
+        title: trimmed,
+        completed: false,
+      });
+
+      setTodos(prev => [...prev, createdTodo]);
+      setTodoQuery('');
+    } catch {
+      setErrorMessage(ErrorMessage.AddTodo);
+    } finally {
+      setTempTodo(null);
+      setIsAdding(false);
+      focusNewTodo();
+    }
+  };
+
+  const handleDeleteTodo = async (id: number) => {
+    if (loadingTodoIds.includes(id)) {
+      return;
+    }
+
+    setloadingTodoIds(prev => [...prev, id]);
+
+    try {
+      await deleteTodo(id);
+      setTodos(prev => prev.filter(todo => todo.id !== id));
+      focusNewTodo();
+    } catch (error) {
+      setErrorMessage(ErrorMessage.DeleteTodo);
+    } finally {
+      setloadingTodoIds(prev => prev.filter(todoId => todoId !== id));
+    }
+  };
+
+  const handleClearCompleted = async () => {
+    setErrorMessage(null);
+
+    const completedIds = todos.filter(t => t.completed).map(t => t.id);
+
+    await Promise.all(completedIds.map(id => handleDeleteTodo(id)));
+
+    focusNewTodo();
+  };
+
+  const handleEditTodo = async (
+    todo: Todo,
+    data: Partial<Omit<Todo, 'id' | 'userId'>>,
+  ) => {
+    if (loadingTodoIds.includes(todo.id)) {
+      return;
+    }
+
+    setErrorMessage(null);
+    setloadingTodoIds(prev =>
+      prev.includes(todo.id) ? prev : [...prev, todo.id],
+    );
+
+    try {
+      const updated = await updateTodo(todo.id, data);
+
+      setTodos(prev =>
+        prev.map(currentTodo =>
+          currentTodo.id === todo.id ? updated : currentTodo,
+        ),
+      );
+    } catch {
+      setErrorMessage(ErrorMessage.UpdateTodo);
+      throw new Error(ErrorMessage.UpdateTodo);
+    } finally {
+      setloadingTodoIds(prev => prev.filter(id => id !== todo.id));
+    }
+  };
+
+  const handleSetTodoStatus = async (todo: Todo, completed: boolean) => {
+    return handleEditTodo(todo, { completed });
+  };
+
+  const handleToggleAllStatus = async () => {
+    setErrorMessage(null);
+
+    const targetCompleted = todosCompletedCount < todos.length ? true : false;
+
+    await Promise.all(
+      todos
+        .filter(todo => todo.completed != targetCompleted)
+        .map(todo => handleEditTodo(todo, { completed: targetCompleted })),
+    );
+  };
+
+  const handleSelectTodoStatus = (todoStatus: TodoStatus) => {
+    setTodoStatusFilter(todoStatus);
+  };
+
   if (!USER_ID) {
     return <UserWarning />;
   }
 
   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">
+          <TodoHeader
+            newTodoQuery={todoQuery}
+            onNewTodoQueryChange={setTodoQuery}
+            shouldFocusNewTodo={editedTodoId === null}
+            inputRef={newTodoRef}
+            onAddTodo={handleAddTodo}
+            isAllCompleted={isAllCompleted}
+            isToggleBtn={todos.length > 0}
+            isAdding={isAdding}
+            onToggleAllStatus={handleToggleAllStatus}
+          />
+
+          {(filteredTodos.length > 0 || tempTodo) && (
+            <TodoList
+              todos={filteredTodos}
+              tempTodo={tempTodo}
+              onToggleTodoStatus={handleSetTodoStatus}
+              loadingTodoIds={loadingTodoIds}
+              editedTodoId={editedTodoId}
+              setEditedTodoId={setEditedTodoId}
+              onDeleteTodo={handleDeleteTodo}
+              onEditTodo={handleEditTodo}
+            />
+          )}
+          {todos.length > 0 && (
+            <TodoFooter
+              todosActiveCount={todosActiveCount}
+              todosStatusFilter={todosStatusFilter}
+              onSelectStatusFilter={handleSelectTodoStatus}
+              disableClearCompletedBtn={todosCompletedCount === 0}
+              onClearCompleted={handleClearCompleted}
+            />
+          )}
+        </div>
+
+        <ErrorNotification
+          message={errorMessage}
+          onClose={() => setErrorMessage(null)}
+        />
+      </div>
+    </>
   );
 };

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 3982;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const createTodo = (data: Omit<Todo, 'id'>) => {
+  return client.post<Todo>(`/todos`, data);
+};
+
+export const deleteTodo = (id: number) => {
+  return client.delete(`/todos/${id}`);
+};
+
+export const updateTodo = (id: number, data: Partial<Omit<Todo, 'id'>>) => {
+  return client.patch<Todo>(`/todos/${id}`, { ...data, userId: USER_ID });
+};

src/components/ErrorNotification/ErrorNotification.tsx

@@ -0,0 +1,30 @@
+import clsx from 'clsx';
+import React from 'react';
+import { ErrorMessage } from '../../types/ErrorMessage';
+
+type Props = {
+  message: ErrorMessage | null;
+  onClose: () => void;
+};
+
+export const ErrorNotification: React.FC<Props> = ({ message, onClose }) => {
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={clsx(
+        'notification is-danger is-light has-text-weight-normal',
+        {
+          hidden: !message,
+        },
+      )}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={onClose}
+      />
+      {message}
+    </div>
+  );
+};

src/components/ErrorNotification/index.tsx

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