importing from previous task, this one not started

README.md

@@ -41,4 +41,4 @@ 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://PawelP2001.github.io/react_todo-app-with-api/) and add it to the PR description.

src/App.tsx

@@ -1,24 +1,299 @@
-/* eslint-disable max-len */
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
-import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import React, { useEffect, useRef, useState } from 'react';
+import classNames from 'classnames';
+import { Todo, Filter } from './types/Todo';
+import {
+  USER_ID, addTodo, deleteTodo, getTodos, updateTodo,
+} from './api/todos';
+import { TodoList } from './components/TodoList';
 
 export const App: React.FC = () => {
-  if (!USER_ID) {
-    return <UserWarning />;
-  }
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMessage, setErrorMessage] = useState<string | null>(null);
+  const [title, setTitle] = useState('');
+  const [filter, setFilter] = useState<Filter>('All');
+  const [isLoading, setIsLoading] = useState(false);
+  const [TodoItem, setTodoItem] = useState<Todo | null>(null);
+  const [currentTodoLoading, setCurrentTodoLoading] = useState<number | null>(
+    null,
+  );
+
+  const newTodoInputRef = useRef<HTMLInputElement | null>(null);
+
+  useEffect(() => {
+    if (newTodoInputRef.current) {
+      newTodoInputRef.current.focus();
+    }
+  }, []);
+
+  const handleErrorMessage = (message: string | null) => {
+    setErrorMessage(message);
+
+    setTimeout(() => {
+      setErrorMessage(null);
+    }, 3000);
+  };
+
+  const focusOnNewTodoInput = () => {
+    if (newTodoInputRef.current) {
+      newTodoInputRef.current.focus();
+    }
+  };
+
+  // eslint-disable-next-line @typescript-eslint/no-shadow
+  const handleAddTodo = async (title: string) => {
+    const trimmedTitle = title.trim();
+
+    const newTodo: Omit<Todo, 'id'> = {
+      title: trimmedTitle,
+      completed: false,
+      userId: USER_ID,
+    };
+
+    setTodoItem({ ...newTodo, id: 0 });
+
+    if (!trimmedTitle) {
+      handleErrorMessage('Title should not be empty');
+
+      return;
+    }
+
+    setIsLoading(true);
+
+    try {
+      const createdTodo = await addTodo(newTodo);
+
+      setTodos([...todos, createdTodo]);
+      setTitle('');
+    } catch (e) {
+      handleErrorMessage('Unable to add a todo');
+    } finally {
+      setTodoItem(null);
+      setIsLoading(false);
+      focusOnNewTodoInput();
+    }
+  };
+
+  const handleDeleteTodo = async (todo: Todo) => {
+    setIsLoading(true);
+    setCurrentTodoLoading(todo.id);
+
+    try {
+      await deleteTodo(todo.id);
+
+      setTodos((prevTodos) => prevTodos.filter((item) => item.id !== todo.id));
+    } catch (err) {
+      handleErrorMessage('Unable to delete a todo');
+    } finally {
+      setIsLoading(false);
+      focusOnNewTodoInput();
+    }
+  };
+
+  const handleClearCompleted = async () => {
+    setIsLoading(true);
+
+    try {
+      const completedTodos = todos.filter((todo) => todo.completed);
+
+      await Promise.all(
+        completedTodos.map(async (todo) => {
+          await deleteTodo(todo.id);
+          setTodos((prevTodos) => prevTodos.filter((t) => t.id !== todo.id));
+        }),
+      );
+    } catch (err) {
+      handleErrorMessage('Unable to delete a todo');
+    } finally {
+      setIsLoading(false);
+      setCurrentTodoLoading(null);
+      focusOnNewTodoInput();
+    }
+  };
+
+  const handleToggleComplete = async (todoToToggle: Todo) => {
+    setIsLoading(true);
+    setCurrentTodoLoading(todoToToggle.id);
+
+    const updatedTodos = todos.map((todo) => {
+      return todo.id === todoToToggle.id
+        ? { ...todo, completed: !todoToToggle.completed }
+        : todo;
+    });
+
+    try {
+      await updateTodo(todoToToggle.id, { completed: !todoToToggle.completed });
+      setTodos(updatedTodos);
+    } catch (err) {
+      handleErrorMessage('Unable to update a todo');
+    } finally {
+      setIsLoading(false);
+      setCurrentTodoLoading(null);
+    }
+  };
+
+  const changeFilterStatus = (type: 'All' | 'Active' | 'Completed') => {
+    setFilter(type);
+  };
+
+  const toggleAll = async () => {
+    setIsLoading(true);
+
+    try {
+      const allCompleted = todos.every((todo) => todo.completed);
+      const updatedTodos = todos.map((todo) => ({
+        ...todo,
+        completed: !allCompleted,
+      }));
+
+      // Send requests only for the todos whose statuses were actually changed
+      const promises = updatedTodos
+        .filter((todo) => todo.completed !== allCompleted)
+        .map(async (todo) => {
+          await updateTodo(todo.id, { completed: !allCompleted });
+        });
+
+      await Promise.all(promises);
+      setTodos(updatedTodos);
+    } catch (err) {
+      handleErrorMessage('Unable to update a todo');
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  useEffect(() => {
+    setErrorMessage(null);
+    if (USER_ID) {
+      getTodos(USER_ID)
+        .then((data) => {
+          setTodos(data);
+        })
+        .catch(() => {
+          handleErrorMessage('Unable to load todos');
+        });
+    }
+  }, []);
+
+  const remainingItems = todos.filter((todo) => !todo.completed).length;
+  const completedItems = todos.filter((todo) => todo.completed).length;
 
   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 className="todoapp__header">
+          {/* eslint-disable-next-line jsx-a11y/control-has-associated-label */}
+          <button
+            type="button"
+            data-cy="ToggleAllButton"
+            className={`todoapp__toggle-all ${
+              todos.every((todo) => todo.completed) ? 'active' : ''
+            }`}
+            onClick={() => toggleAll()}
+          />
+
+          <form
+            onSubmit={(e) => {
+              e.preventDefault();
+              handleAddTodo(title);
+            }}
+          >
+            <input
+              ref={newTodoInputRef}
+              data-cy="NewTodoField"
+              type="text"
+              className="todoapp__new-todo"
+              placeholder="What needs to be done?"
+              value={title}
+              onChange={(e) => setTitle(e.target.value)}
+              disabled={isLoading}
+            />
+          </form>
+        </header>
+        {todos.length > 0 && (
+          <>
+            <TodoList
+              todos={todos}
+              filterType={filter}
+              handleDeleteTodo={handleDeleteTodo}
+              handleToggleComplete={handleToggleComplete}
+              todoItem={TodoItem}
+              currentTodoLoading={currentTodoLoading}
+              handleErrorMessage={handleErrorMessage}
+            />
+
+            <footer className="todoapp__footer" data-cy="Footer">
+              <span className="todo-count" data-cy="TodosCounter">
+                {`${remainingItems} items left`}
+              </span>
+
+              <nav className="filter" data-cy="Filter">
+                <a
+                  href="#/"
+                  className={`filter__link ${filter === 'All' ? 'selected' : ''}`}
+                  onClick={() => changeFilterStatus('All')}
+                  data-cy="FilterLinkAll"
+                >
+                  All
+                </a>
+
+                <a
+                  href="#/active"
+                  className={`filter__link ${
+                    filter === 'Active' ? 'selected' : ''
+                  }`}
+                  onClick={() => changeFilterStatus('Active')}
+                  data-cy="FilterLinkActive"
+                >
+                  Active
+                </a>
+
+                <a
+                  href="#/completed"
+                  className={`filter__link ${
+                    filter === 'Completed' ? 'selected' : ''
+                  }`}
+                  onClick={() => changeFilterStatus('Completed')}
+                  data-cy="FilterLinkCompleted"
+                >
+                  Completed
+                </a>
+              </nav>
+
+              <button
+                type="button"
+                className="todoapp__clear-completed"
+                data-cy="ClearCompletedButton"
+                onClick={handleClearCompleted}
+                disabled={completedItems === 0}
+                hidden={completedItems === 0}
+              >
+                Clear completed
+              </button>
+            </footer>
+          </>
+        )}
+      </div>
+
+      <div
+        data-cy="ErrorNotification"
+        className={classNames(
+          'notification is-danger is-light has-text-weight-normal',
+          {
+            hidden: !errorMessage,
+          },
+        )}
+      >
+        {/* eslint-disable-next-line jsx-a11y/control-has-associated-label */}
+        <button
+          data-cy="HideErrorButton"
+          type="button"
+          className="delete"
+          onClick={() => setErrorMessage(null)}
+        />
+        {errorMessage}
+      </div>
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,21 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClients';
+
+export const getTodos = (userId: number) => {
+  return client.get<Todo[]>(`/todos?userId=${userId}`);
+};
+
+export const API_URL = 'https://mate.academy/students-api/todos?userId=11577';
+export const USER_ID = 11577;
+
+export const addTodo = (todo: Omit<Todo, 'id'>) => {
+  return client.post<Todo>('/todos', todo);
+};
+
+export const deleteTodo = (todoId: number) => {
+  return client.delete(`/todos/${todoId}`);
+};
+
+export const updateTodo = (id: number, todo: Partial<Todo>) => {
+  return client.patch<Todo>(`/todos/${id}`, todo);
+};