solution

README.md

@@ -47,4 +47,4 @@ Implement the ability to edit a todo title on double click:
 
 - Implement a solution following the [React task guideline](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).
-- Replace `<your_account>` with your Github username in the [DEMO LINK](https://<your_account>.github.io/react_todo-app-with-api/) and add it to the PR description.
+- Replace `<your_account>` with your Github username in the [DEMO LINK](https://pogorielova.github.io/react_todo-app-with-api/) and add it to the PR description.

src/App.tsx

@@ -1,26 +1,193 @@
-/* eslint-disable max-len */
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useEffect, useMemo, useRef, useState } from 'react';
 import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import * as todoService from './api/todos';
+import { Todo } from './types/Todo';
+import { Header } from './components/Header';
+import { Footer } from './components/Footer';
+import { ErrorNotification } from './components/ErrorNotification';
+import { TodoItem } from './components/TodoItem';
+import { FilterType } from './types/FilterType';
+import { ErrorTypes } from './types/ErrorTypes';
+import { CSSTransition, TransitionGroup } from 'react-transition-group';
 
 export const App: React.FC = () => {
-  if (!USER_ID) {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMessage, setErrorMessage] = useState<ErrorTypes | null>(null);
+  const [filterType, setFilterType] = useState(FilterType.All);
+  const [isSubmitting, setIsSubmitting] = useState(false);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [loadingTodoIds, setLoadingTodoIds] = useState<number[]>([]);
+  const [editingTodo, setEditingTodo] = useState<number | null>(null);
+
+  const visibleTodos = useMemo(
+    () =>
+      todos.filter(todo => {
+        if (filterType === FilterType.All) {
+          return true;
+        }
+
+        return filterType === FilterType.Completed
+          ? todo.completed
+          : !todo.completed;
+      }),
+    [todos, filterType],
+  );
+
+  const inputField = useRef<HTMLInputElement>(null);
+
+  const isAllCompleted = todos.every(todo => todo.completed);
+  const activeTodos = todos.filter(todo => !todo.completed);
+  const completedTodos = todos.filter(todo => todo.completed);
+
+  const onAddTodo = async (newTodoTitle: string) => {
+    setIsSubmitting(true);
+    setTempTodo({
+      id: 0,
+      title: newTodoTitle,
+      completed: false,
+      userId: todoService.USER_ID,
+    });
+    try {
+      const newTodo = await todoService.addTodo({
+        title: newTodoTitle,
+        completed: false,
+        userId: todoService.USER_ID,
+      });
+
+      setTodos(currentTodos => [...currentTodos, newTodo]);
+    } catch (error) {
+      setErrorMessage(ErrorTypes.Adding);
+      inputField?.current?.focus();
+      throw error;
+    } finally {
+      setIsSubmitting(false);
+      setTempTodo(null);
+    }
+  };
+
+  const onDeleteTodo = async (todoToDelete: number) => {
+    setLoadingTodoIds(prev => [...prev, todoToDelete]);
+    try {
+      await todoService.deleteTodo(todoToDelete);
+      setTodos(prev => prev.filter(todo => todo.id !== todoToDelete));
+    } catch (error) {
+      setErrorMessage(ErrorTypes.Deleting);
+      inputField?.current?.focus();
+      throw error;
+    } finally {
+      setLoadingTodoIds(prev => prev.filter(id => id !== todoToDelete));
+    }
+  };
+
+  const onUpdateTodo = async (todoToUpdate: Todo) => {
+    setLoadingTodoIds(prev => [...prev, todoToUpdate.id]);
+    try {
+      const updated = await todoService.updateTodo(todoToUpdate);
+
+      setTodos(prev =>
+        prev.map(todo => {
+          return todo.id === updated.id ? updated : todo;
+        }),
+      );
+    } catch (error) {
+      setErrorMessage(ErrorTypes.Updating);
+      throw error;
+    } finally {
+      setLoadingTodoIds(prev => prev.filter(id => id !== todoToUpdate.id));
+    }
+  };
+
+  const onToggleAll = async () => {
+    if (activeTodos.length > 0) {
+      activeTodos.forEach(todo => {
+        onUpdateTodo({ ...todo, completed: true });
+      });
+    } else {
+      todos.forEach(todo => {
+        onUpdateTodo({ ...todo, completed: false });
+      });
+    }
+  };
+
+  const onClearCompleted = async () => {
+    const completed = todos.filter(todo => todo.completed);
+
+    completed.forEach(todo => {
+      onDeleteTodo(todo.id);
+    });
+  };
+
+  useEffect(() => {
+    todoService
+      .getTodos()
+      .then(setTodos)
+      .catch(() => {
+        setErrorMessage(ErrorTypes.Loading);
+      });
+  }, []);
+
+  if (!todoService.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">
+        <Header
+          isAllCompleted={isAllCompleted}
+          onAddTodo={onAddTodo}
+          isSubmitting={isSubmitting}
+          setErrorMessage={setErrorMessage}
+          todosLength={todos.length}
+          inputField={inputField}
+          onToggleAll={onToggleAll}
+        />
+        <section className="todoapp__main" data-cy="TodoList">
+          <TransitionGroup>
+            {visibleTodos.map((todo: Todo) => (
+              <CSSTransition key={todo.id} timeout={300} classNames="item">
+                <TodoItem
+                  todo={todo}
+                  onDeleteTodo={onDeleteTodo}
+                  onUpdateTodo={onUpdateTodo}
+                  key={todo.id}
+                  isLoading={loadingTodoIds.includes(todo.id)}
+                  isEditing={editingTodo === todo.id}
+                  setEditingTodo={setEditingTodo}
+                />
+              </CSSTransition>
+            ))}
+            {tempTodo && (
+              <CSSTransition key={0} timeout={300} classNames="temp-item">
+                <TodoItem
+                  todo={tempTodo}
+                  onDeleteTodo={onDeleteTodo}
+                  onUpdateTodo={onUpdateTodo}
+                  setEditingTodo={setEditingTodo}
+                  isLoading
+                />
+              </CSSTransition>
+            )}
+          </TransitionGroup>
+        </section>
+
+        {todos.length > 0 && (
+          <Footer
+            activeTodos={activeTodos}
+            completedTodos={completedTodos}
+            filterType={filterType}
+            setFilterType={setFilterType}
+            onClearCompleted={onClearCompleted}
+          />
+        )}
+      </div>
+
+      <ErrorNotification
+        errorMessage={errorMessage}
+        setErrorMessage={setErrorMessage}
+      />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 2139;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const deleteTodo = (id: number) => {
+  return client.delete(`/todos/${id}`);
+};
+
+export const addTodo = (newTodo: Omit<Todo, 'id'>) => {
+  return client.post<Todo>(`/todos`, { ...newTodo });
+};
+
+export const updateTodo = (todo: Todo) => {
+  return client.patch<Todo>(`/todos/${todo.id}`, todo);
+};

src/components/ErrorNotification.tsx

@@ -0,0 +1,45 @@
+import classNames from 'classnames';
+import { ErrorTypes } from '../types/ErrorTypes';
+import { Dispatch, SetStateAction, useEffect } from 'react';
+
+type Props = {
+  errorMessage: ErrorTypes | null;
+  setErrorMessage: Dispatch<SetStateAction<ErrorTypes | null>>;
+};
+
+export const ErrorNotification: React.FC<Props> = ({
+  errorMessage,
+  setErrorMessage,
+}) => {
+  useEffect(() => {
+    if (errorMessage === null) {
+      return;
+    }
+
+    const timerId = setTimeout(() => {
+      setErrorMessage(null);
+    }, 3000);
+
+    return () => {
+      clearTimeout(timerId);
+    };
+  }, [errorMessage, setErrorMessage]);
+
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={classNames(
+        'notification is-danger is-light has-text-weight-normal',
+        { hidden: errorMessage === null },
+      )}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={() => setErrorMessage(null)}
+      />
+      {errorMessage}
+    </div>
+  );
+};

src/components/Footer.tsx

@@ -0,0 +1,53 @@
+import classNames from 'classnames';
+import { FilterType } from '../types/FilterType';
+import { Todo } from '../types/Todo';
+
+type Props = {
+  activeTodos: Todo[];
+  completedTodos: Todo[];
+  filterType: FilterType;
+  setFilterType: (selectedOption: FilterType) => void;
+  onClearCompleted: () => Promise<void>;
+};
+
+export const Footer: React.FC<Props> = ({
+  activeTodos,
+  filterType,
+  completedTodos,
+  setFilterType,
+  onClearCompleted,
+}) => {
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {activeTodos.length} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {Object.values(FilterType).map(filter => (
+          <a
+            href={`#/${filter === FilterType.All ? '' : filter.toLowerCase()}`}
+            key={filter}
+            className={classNames('filter__link', {
+              selected: filterType === filter,
+            })}
+            data-cy={`FilterLink${filter}`}
+            onClick={() => setFilterType(filter)}
+          >
+            {filter}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={!completedTodos.length}
+        onClick={onClearCompleted}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};