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://NazarenkoAnna.github.io/react_todo-app-with-api/) and add it to the PR description.

src/App.tsx

@@ -1,26 +1,227 @@
-/* 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, { useCallback, useEffect, useMemo, useState } from 'react';
 import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import {
+  updateTodo,
+  addTodo,
+  deleteTodo,
+  getTodos,
+  USER_ID,
+} from './api/todos';
+import { Todo } from './types/Todo';
+import { TodoFooter } from './components/TodoFooter';
+import { ErrorNotification } from './components/ErrorNotification';
+import { TodoList } from './components/TodoList';
+import { TodoHeader } from './components/TodoHeader';
+import { Filter } from './types/Filter';
+import { Error } from './types/ErrorMsg';
+import { TodoItem } from './components/TodoItem';
 
 export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMsg, setErrorMsg] = useState<Error | ''>('');
+  const [isLoading, setIsLoading] = useState(false);
+  const [filter, setFilter] = useState<Filter>(Filter.All);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [todoTitle, setTodoTitle] = useState('');
+  const [isSubmiting, setIsSubmiting] = useState(false);
+  const [processingId, setProcessingId] = useState<number[]>([]);
+
+  useEffect(() => {
+    setIsLoading(true);
+    setErrorMsg('');
+    getTodos()
+      .then(setTodos)
+      .catch(() => {
+        setErrorMsg(Error.Fetch);
+      })
+      .finally(() => {
+        setIsLoading(false);
+      });
+  }, []);
+
+  const handleErrorClose = useCallback(() => {
+    setErrorMsg('');
+  }, []);
+
+  const onAddTodo = (title: string) => {
+    setIsSubmiting(true);
+    setErrorMsg('');
+
+    const newTodo = {
+      id: 0,
+      title: title,
+      userId: USER_ID,
+      completed: false,
+    };
+
+    setTempTodo(newTodo);
+
+    addTodo(newTodo)
+      .then(created => {
+        setTodos(prev => [...prev, created]);
+        setTodoTitle('');
+      })
+      .catch(err => {
+        setTimeout(() => setErrorMsg(Error.Add), 0);
+        throw err;
+      })
+      .finally(() => {
+        setTempTodo(null);
+        setIsSubmiting(false);
+      });
+  };
+
+  const handleOnDelete = (id: number) => {
+    setProcessingId(prev => [...prev, id]);
+    deleteTodo(id)
+      .then(() => {
+        setTodos(prev => prev.filter(todo => todo.id !== id));
+      })
+      .catch(() => {
+        setErrorMsg(Error.Delete);
+      })
+      .finally(() => {
+        setProcessingId(prev => prev.filter(i => i !== id));
+      });
+  };
+
+  const onDeleteCompletedTodos = () => {
+    const completedIds = todos.filter(todo => todo.completed);
+
+    if (completedIds.length === 0) {
+      return;
+    }
+
+    completedIds.forEach(todo => {
+      handleOnDelete(todo.id);
+    });
+  };
+
+  const allTodosCompleted = useMemo(
+    () => todos.length > 0 && todos.every(todo => todo.completed),
+    [todos],
+  );
+
+  const handleToggleTodo = (todo: Todo) => {
+    const id = todo.id;
+
+    setProcessingId(prev => [...prev, id]);
+    setErrorMsg('');
+
+    updateTodo(id, { completed: !todo.completed })
+      .then(updatedTodo => {
+        setTodos(current =>
+          current.map(item => (item.id === id ? updatedTodo : item)),
+        );
+      })
+      .catch(() => {
+        setErrorMsg(Error.Update);
+      })
+      .finally(() => {
+        setProcessingId(prev => prev.filter(i => i !== id));
+      });
+  };
+
+  const handleToggleAll = () => {
+    setErrorMsg('');
+
+    const status = allTodosCompleted;
+
+    const activeItems = todos.filter(todo => todo.completed === status);
+
+    activeItems.forEach(todo => {
+      handleToggleTodo(todo);
+    });
+  };
+
+  const handleUpdateTodo = (
+    todo: Todo,
+    data: { title: string },
+  ): Promise<void> => {
+    setErrorMsg('');
+    setProcessingId(prev => [...prev, todo.id]);
+
+    return updateTodo(todo.id, data)
+      .then(updatedTodo => {
+        setTodos(current =>
+          current.map(item => (item.id === todo.id ? updatedTodo : item)),
+        );
+      })
+      .catch(err => {
+        setErrorMsg(Error.Update);
+        throw err;
+      })
+      .finally(() => {
+        setProcessingId(prev => prev.filter(i => i !== todo.id));
+      });
+  };
+
+  const filteredTodos = useMemo(() => {
+    switch (filter) {
+      case Filter.Active:
+        return todos.filter(todo => !todo.completed);
+      case Filter.Completed:
+        return todos.filter(todo => todo.completed);
+      default:
+        return todos;
+    }
+  }, [todos, filter]);
+
+  const activeTodos = useMemo(
+    () => todos.filter(todo => !todo.completed).length,
+    [todos],
+  );
+
+  const completedTodos = useMemo(
+    () => todos.filter(todo => todo.completed).length > 0,
+    [todos],
+  );
+
   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
+          todos={todos}
+          isSubmiting={isSubmiting}
+          todoTitle={todoTitle}
+          setTodoTitle={setTodoTitle}
+          onAddTodo={onAddTodo}
+          setErrorMsg={setErrorMsg}
+          allTodosCompleted={allTodosCompleted}
+          toggleAll={handleToggleAll}
+        />
+
+        <TodoList
+          todos={filteredTodos}
+          isLoading={isLoading}
+          processingId={processingId}
+          onDelete={handleOnDelete}
+          onToggle={handleToggleTodo}
+          onUpdate={handleUpdateTodo}
+        />
+
+        {tempTodo && <TodoItem todo={tempTodo} isSubmiting />}
+
+        {todos.length !== 0 && (
+          <TodoFooter
+            activeTodos={activeTodos}
+            completedTodos={completedTodos}
+            filter={filter}
+            onFilterChange={setFilter}
+            onDeleteCompletedTodos={onDeleteCompletedTodos}
+          />
+        )}
+      </div>
+
+      <ErrorNotification errorMsg={errorMsg} onClose={handleErrorClose} />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,23 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 4060;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const addTodo = (newTodo: Todo) => {
+  return client.post<Todo>('/todos', newTodo);
+};
+
+export const deleteTodo = (id: number) => {
+  return client.delete(`/todos/${id}`);
+};
+
+export const updateTodo = (id: number, data: Partial<Todo>) => {
+  return client.patch<Todo>(`/todos/${id}`, data);
+};
+
+// Add more methods here
+// https://mate.academy/students-api/todos?userId=4060

src/components/ErrorNotification.tsx

@@ -0,0 +1,39 @@
+import React, { useEffect } from 'react';
+import classNames from 'classnames';
+
+type Props = {
+  errorMsg: string;
+  onClose: () => void;
+};
+
+export const ErrorNotification: React.FC<Props> = ({ errorMsg, onClose }) => {
+  useEffect(() => {
+    if (!errorMsg) {
+      return;
+    }
+
+    const timerId = setTimeout(() => {
+      onClose();
+    }, 3000);
+
+    return () => clearTimeout(timerId);
+  }, [errorMsg, onClose]);
+
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={classNames(
+        'notification is-danger is-light has-text-weight-normal',
+        { hidden: !errorMsg },
+      )}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className="delete"
+        onClick={onClose}
+      />
+      {errorMsg}
+    </div>
+  );
+};

src/components/TodoFooter.tsx

@@ -0,0 +1,53 @@
+import React from 'react';
+import { Filter } from '../types/Filter';
+import classNames from 'classnames';
+
+type Props = {
+  activeTodos: number;
+  completedTodos: boolean;
+  filter: Filter;
+  onFilterChange: (status: Filter) => void;
+  onDeleteCompletedTodos: () => void;
+};
+
+export const TodoFooter: React.FC<Props> = ({
+  activeTodos,
+  completedTodos,
+  filter,
+  onFilterChange,
+  onDeleteCompletedTodos,
+}) => {
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {activeTodos} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {Object.values(Filter).map(option => (
+          <a
+            key={option}
+            href={`#/${option === Filter.All ? '' : option}`}
+            className={classNames('filter__link', {
+              selected: filter === option,
+            })}
+            data-cy={`FilterLink${option[0].toUpperCase() + option.slice(1)}`}
+            onClick={() => onFilterChange(option)}
+          >
+            {option[0].toUpperCase() + option.slice(1)}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={!completedTodos}
+        onClick={onDeleteCompletedTodos}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};