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://YoNiga7.github.io/react_todo-app-with-api/) and add it to the PR description.

package.json

@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "@cypress/react18": "^2.0.1",
-    "@mate-academy/scripts": "^1.8.5",
+    "@mate-academy/scripts": "^1.9.12",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",
     "@types/node": "^20.14.10",

src/App.tsx

@@ -1,26 +1,225 @@
-/* eslint-disable max-len */
 /* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
-import { UserWarning } from './UserWarning';
+import cn from 'classnames';
+import { CSSTransition, TransitionGroup } from 'react-transition-group';
+import React, { useEffect, useMemo, useRef, useState } from 'react';
 
-const USER_ID = 0;
+import {
+  USER_ID,
+  addTodo,
+  getTodos,
+  deleteTodo,
+  updateTodo,
+} from './api/todos';
+
+import { Todo } from './types/Todo';
+import { Status } from './types/Status';
+import { TodoFilter } from './components/TodoFilter';
+import { TodoItem } from './components/TodoItem';
+import { ErrorType } from './types/ErrorType';
+import { filterTodos } from './components/TodoFilter/filterTodos';
 
 export const App: React.FC = () => {
-  if (!USER_ID) {
-    return <UserWarning />;
-  }
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [newTodoTitle, setNewTodoTitle] = useState('');
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [errorMsg, setErrorMsg] = useState<ErrorType>(ErrorType.Default);
+  const [filter, setFilter] = useState<Status>(Status.All);
+  const [processingTodos, setProcessingTodos] = useState<number[]>([]);
+
+  const addInputRef = useRef<HTMLInputElement>(null);
+  const allAreCompleted = useMemo(
+    () => todos.every(todo => todo.completed),
+    [todos],
+  );
+  const hasTodos = useMemo(() => todos.length > 0, [todos]);
+
+  const filteredTodos = useMemo(
+    () => filterTodos(todos, filter),
+    [todos, filter],
+  );
+
+  const handleError = (error: ErrorType) => {
+    setErrorMsg(error);
+
+    setTimeout(() => {
+      setErrorMsg(ErrorType.Default);
+    }, 3000);
+  };
+
+  const onTodoAdd = (e: React.FormEvent<HTMLFormElement>) => {
+    e.preventDefault();
+
+    if (!newTodoTitle.trim()) {
+      handleError(ErrorType.EmptyTitle);
+
+      return;
+    }
+
+    setTempTodo({
+      title: newTodoTitle.trim(),
+      id: 0,
+      userId: USER_ID,
+      completed: false,
+    });
+
+    addTodo(newTodoTitle.trim())
+      .then(newTodo => {
+        setTodos(prevTodos => [...prevTodos, newTodo]);
+        setNewTodoTitle('');
+      })
+      .catch(() => {
+        handleError(ErrorType.AddTodoFailed);
+        setTodos(todos);
+      })
+      .finally(() => {
+        setTempTodo(null);
+      });
+  };
+
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  const onTodoDelete = (todoId: number) => {
+    setProcessingTodos(prevProcessing => [...prevProcessing, todoId]);
+
+    return deleteTodo(todoId)
+      .then(() => {
+        setTodos(prev => prev.filter(prevTodo => prevTodo.id !== todoId));
+      })
+      .catch(() => {
+        handleError(ErrorType.DeleteTodoFailed);
+      })
+      .finally(() => {
+        setProcessingTodos(prevIds => prevIds.filter(id => id !== todoId));
+      });
+  };
+
+  const onTodoDeleteCompleted = () => {
+    const completedTodos = todos.filter(todo => todo.completed);
+
+    completedTodos.forEach(todo => onTodoDelete(todo.id));
+  };
+
+  const onTodoEdit = (todoId: number, updatedFields: Partial<Todo>) => {
+    setProcessingTodos(prev => [...prev, todoId]);
+
+    return updateTodo(todoId, updatedFields)
+      .then(res => {
+        setTodos(prevTodos =>
+          prevTodos.map(todo => {
+            return todo.id === todoId ? res : todo;
+          }),
+        );
+      })
+      .catch(error => {
+        handleError(ErrorType.UpdateTodoFailed);
+        throw error;
+      })
+      .finally(() => {
+        setProcessingTodos(prevIds =>
+          prevIds.filter(prevId => prevId !== todoId),
+        );
+      });
+  };
+
+  const onToggleCompletedAll = () => {
+    const todosToToggle = allAreCompleted
+      ? [...todos]
+      : todos.filter(todo => !todo.completed);
+
+    todosToToggle.forEach(todo =>
+      onTodoEdit(todo.id, { completed: !todo.completed }),
+    );
+  };
+
+  useEffect(() => {
+    getTodos()
+      .then(setTodos)
+      .catch(() => handleError(ErrorType.LoadTodosFailed));
+  }, []);
+
+  useEffect(() => {
+    addInputRef.current?.focus();
+  }, [todos, tempTodo]);
 
   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>
+
+      <header className="todoapp__header">
+        {/* this button should have `active` class only if all todos are completed */}
+        {hasTodos && (
+          <button
+            type="button"
+            className={cn('todoapp__toggle-all', { active: allAreCompleted })}
+            data-cy="ToggleAllButton"
+            onClick={onToggleCompletedAll}
+          />
+        )}
+
+        {/* Add a todo on form submit */}
+        <form onSubmit={onTodoAdd}>
+          <input
+            disabled={!!tempTodo}
+            data-cy="NewTodoField"
+            type="text"
+            className="todoapp__new-todo"
+            placeholder="What needs to be done?"
+            ref={addInputRef}
+            value={newTodoTitle}
+            onChange={e => setNewTodoTitle(e.target.value)}
+          />
+        </form>
+      </header>
+
+      <div className="todoapp__content">
+        <section className="todoapp__main" data-cy="TodoList">
+          <TransitionGroup>
+            {filteredTodos.map(todo => (
+              <CSSTransition key={todo.id} timeout={300} classNames="item">
+                <TodoItem
+                  key={todo.id}
+                  todo={todo}
+                  onDelete={onTodoDelete}
+                  processingTodos={processingTodos}
+                  onEdit={onTodoEdit}
+                />
+              </CSSTransition>
+            ))}
+
+            {tempTodo && (
+              <CSSTransition key={0} timeout={300} classNames="temp-item">
+                <TodoItem todo={tempTodo} />
+              </CSSTransition>
+            )}
+          </TransitionGroup>
+        </section>
+        {/* Hide the footer if there are no todos */}
+        {hasTodos && (
+          <footer className="todoapp__footer" data-cy="Footer">
+            <TodoFilter
+              filter={filter}
+              onFilterChange={setFilter}
+              todos={todos}
+              onDelete={onTodoDeleteCompleted}
+            />
+          </footer>
+        )}
+      </div>
+
+      <div
+        data-cy="ErrorNotification"
+        className={cn(
+          'notification is-danger is-light has-text-weight-normal',
+          { hidden: !errorMsg },
+        )}
+      >
+        <button
+          data-cy="HideErrorButton"
+          type="button"
+          className="delete"
+          onClick={() => setErrorMsg(ErrorType.Default)}
+        />
+        {errorMsg}
+      </div>
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,25 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 2176;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const addTodo = (todoTitle: string) => {
+  return client.post<Todo>('/todos', {
+    title: todoTitle,
+    userId: USER_ID,
+    completed: false,
+  });
+};
+
+export const deleteTodo = (todoId: number) => {
+  return client.delete(`/todos/${todoId}`);
+};
+
+export const updateTodo = (todoId: number, updatedFields: Partial<Todo>) => {
+  return client.patch<Todo>(`/todos/${todoId}`, updatedFields);
+};
+// Add more methods here

src/components/TodoFilter/TodoFilter.tsx

@@ -0,0 +1,72 @@
+/* eslint-disable react/display-name */
+import React, { memo } from 'react';
+import cn from 'classnames';
+import { Status } from '../../types/Status';
+import { Todo } from '../../types/Todo';
+
+type Props = {
+  filter: Status;
+  onFilterChange: (newFilter: Status) => void;
+  todos: Todo[];
+  onDelete: () => void;
+};
+
+export const TodoFilter: React.FC<Props> = memo(
+  ({ filter, onFilterChange, todos, onDelete }) => {
+    const statuses = [
+      { key: Status.All, label: 'All', dataCy: 'FilterLinkAll' },
+      { key: Status.Active, label: 'Active', dataCy: 'FilterLinkActive' },
+      {
+        key: Status.Completed,
+        label: 'Completed',
+        dataCy: 'FilterLinkCompleted',
+      },
+    ];
+
+    const handleLinkClick = (
+      e: React.MouseEvent<HTMLAnchorElement, MouseEvent>,
+      status: Status,
+    ) => {
+      e.preventDefault();
+      onFilterChange(status);
+    };
+
+    const uncompletedTodosCount = todos.reduce((acc, todo) => {
+      return todo.completed ? acc : acc + 1;
+    }, 0);
+
+    const hasCompleted = todos.some(todo => todo.completed);
+
+    return (
+      <>
+        <span className="todo-count" data-cy="TodosCounter">
+          {`${uncompletedTodosCount} items left`}
+        </span>
+
+        <nav className="filter" data-cy="Filter">
+          {statuses.map(({ key, label, dataCy }) => (
+            <a
+              key={key}
+              href={`#/${key}`}
+              data-cy={dataCy}
+              onClick={e => handleLinkClick(e, key)}
+              className={cn('filter__link', { selected: filter === key })}
+            >
+              {label}
+            </a>
+          ))}
+        </nav>
+
+        <button
+          disabled={!hasCompleted}
+          type="button"
+          className="todoapp__clear-completed"
+          data-cy="ClearCompletedButton"
+          onClick={onDelete}
+        >
+          Clear completed
+        </button>
+      </>
+    );
+  },
+);

src/components/TodoFilter/filterTodos.tsx

@@ -0,0 +1,14 @@
+import { Status } from '../../types/Status';
+import { Todo } from '../../types/Todo';
+
+export function filterTodos(todos: Todo[], filter: Status) {
+  switch (filter) {
+    case Status.Active:
+      return todos.filter(todo => !todo.completed);
+    case Status.Completed:
+      return todos.filter(todo => todo.completed);
+
+    default:
+      return todos;
+  }
+}

src/components/TodoFilter/index.ts

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