Develop

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://AleksanderChaika.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": "^2.1.3",
     "@mate-academy/students-ts-config": "*",
     "@mate-academy/stylelint-config": "*",
     "@types/node": "^20.14.10",

src/App.tsx

@@ -1,26 +1,223 @@
-/* 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, useState, useMemo } from 'react';
+import cn from 'classnames';
 import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import {
+  createTodo,
+  deleteTodo,
+  getTodos,
+  updateTodo,
+  USER_ID,
+} from './api/todos';
+import { Todo } from './types/Todo';
+import { Footer } from './components/Footer';
+import { TodoList } from './components/TodoList';
+import { ErrorNotification } from './components/ErrorNotification';
+import { ErrorMessage, Status } from './types/Enum';
 
 export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [errorMessage, setErrorMessage] = useState<ErrorMessage>(
+    ErrorMessage.None,
+  );
+
+  const [filter, setFilter] = useState<Status>(Status.All);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [newTodoTitle, setNewTodoTitle] = useState('');
+  const [isLoading, setIsLoading] = useState(false);
+  const [loadingIds, setLoadingIds] = useState<number[]>([]);
+
+  const todoFieldRef = React.useRef<HTMLInputElement>(null);
+
+  const addTodo = (event: React.FormEvent) => {
+    event.preventDefault();
+    const trimmedTitle = newTodoTitle.trim();
+
+    if (!trimmedTitle) {
+      setErrorMessage(ErrorMessage.Title);
+      setTimeout(() => setErrorMessage(ErrorMessage.None), 3000);
+      todoFieldRef.current?.focus();
+
+      return;
+    }
+
+    setIsLoading(true);
+    setTempTodo({
+      id: 0,
+      userId: USER_ID,
+      title: trimmedTitle,
+      completed: false,
+    });
+
+    createTodo({
+      userId: USER_ID,
+      title: trimmedTitle,
+      completed: false,
+    })
+      .then(newTodo => {
+        setTodos(prev => [...prev, newTodo]);
+        setNewTodoTitle('');
+      })
+      .catch(() => {
+        setErrorMessage(ErrorMessage.Add);
+        setTimeout(() => setErrorMessage(ErrorMessage.None), 3000);
+      })
+      .finally(() => {
+        setIsLoading(false);
+        setTempTodo(null);
+
+        setTimeout(() => {
+          todoFieldRef.current?.focus();
+        }, 0);
+      });
+  };
+
+  useEffect(() => {
+    getTodos()
+      .then(setTodos)
+      .catch(() => {
+        setErrorMessage(ErrorMessage.Load);
+        setTimeout(() => setErrorMessage(ErrorMessage.None), 3000);
+      });
+  }, []);
+
+  const removeTodo = (todoId: number) => {
+    setLoadingIds(prev => [...prev, todoId]);
+
+    return deleteTodo(todoId)
+      .then(() => {
+        setTodos(prev => prev.filter(todo => todo.id !== todoId));
+      })
+      .catch(error => {
+        setErrorMessage(ErrorMessage.Delete);
+        setTimeout(() => setErrorMessage(ErrorMessage.None), 3000);
+        throw error;
+      })
+      .finally(() => {
+        setLoadingIds(prev => prev.filter(id => id !== todoId));
+
+        setTimeout(() => {
+          todoFieldRef.current?.focus();
+        }, 0);
+      });
+  };
+
+  const onUpdate = (todoId: number, data: Partial<Todo>) => {
+    setLoadingIds(prev => [...prev, todoId]);
+
+    return updateTodo({ id: todoId, ...data })
+      .then(updatedTodo => {
+        setTodos(prev =>
+          prev.map(todo => (todo.id === todoId ? updatedTodo : todo)),
+        );
+      })
+      .catch(error => {
+        setErrorMessage(ErrorMessage.Update);
+        setTimeout(() => setErrorMessage(ErrorMessage.None), 3000);
+        throw error;
+      })
+      .finally(() => {
+        setLoadingIds(prev => prev.filter(id => id !== todoId));
+      });
+  };
+
+  const toggleAll = () => {
+    const allCompleted = todos.every(todo => todo.completed);
+    const targetStatus = !allCompleted;
+
+    todos.forEach(todo => {
+      if (todo.completed !== targetStatus) {
+        onUpdate(todo.id, { completed: targetStatus });
+      }
+    });
+  };
+
+  const clearCompleted = () => {
+    const completedTodos = todos.filter(todo => todo.completed);
+
+    completedTodos.forEach(todo => removeTodo(todo.id));
+  };
+
+  const visibleTodos = useMemo(() => {
+    return todos.filter(todo => {
+      if (filter === Status.Active) {
+        return !todo.completed;
+      }
+
+      if (filter === Status.Completed) {
+        return todo.completed;
+      }
+
+      return true;
+    });
+  }, [todos, filter]);
+
   if (!USER_ID) {
     return <UserWarning />;
   }
 
+  const activeCount = todos.filter(t => !t.completed).length;
+  const hasCompleted = todos.some(t => t.completed);
+  const isAllCompleted = todos.length > 0 && todos.every(t => t.completed);
+
   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">
+          {todos.length > 0 && (
+            <button
+              type="button"
+              className={cn('todoapp__toggle-all', {
+                active: isAllCompleted,
+              })}
+              data-cy="ToggleAllButton"
+              onClick={toggleAll}
+            />
+          )}
+
+          <form onSubmit={addTodo}>
+            <input
+              ref={todoFieldRef}
+              data-cy="NewTodoField"
+              type="text"
+              className="todoapp__new-todo"
+              placeholder="What needs to be done?"
+              value={newTodoTitle}
+              onChange={e => setNewTodoTitle(e.target.value)}
+              disabled={isLoading}
+              autoFocus
+            />
+          </form>
+        </header>
+
+        {(todos.length > 0 || tempTodo) && (
+          <TodoList
+            todos={visibleTodos}
+            tempTodo={tempTodo}
+            loadingIds={loadingIds}
+            onDelete={removeTodo}
+            onUpdate={onUpdate}
+          />
+        )}
+
+        {todos.length > 0 && (
+          <Footer
+            activeCount={activeCount}
+            currentFilter={filter}
+            onFilterChange={setFilter}
+            hasCompleted={hasCompleted}
+            onClearCompleted={clearCompleted}
+          />
+        )}
+      </div>
+
+      <ErrorNotification
+        message={errorMessage}
+        onClose={() => setErrorMessage(ErrorMessage.None)}
+      />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 3160;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const createTodo = (data: Omit<Todo, 'id'>) => {
+  return client.post<Todo>('/todos', data);
+};
+
+export const deleteTodo = (todoId: number) => {
+  return client.delete(`/todos/${todoId}`);
+};
+
+export const updateTodo = ({ id, ...data }: Partial<Todo>) => {
+  return client.patch<Todo>(`/todos/${id}`, data);
+};

src/components/ErrorNotification.tsx

@@ -0,0 +1,25 @@
+import React from 'react';
+import cn from 'classnames';
+import { ErrorMessage } from '../types/Enum';
+
+interface Props {
+  message: ErrorMessage;
+  onClose: () => void;
+}
+
+export const ErrorNotification: React.FC<Props> = ({ message, onClose }) => (
+  <div
+    data-cy="ErrorNotification"
+    className={cn('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/Footer.tsx

@@ -0,0 +1,51 @@
+import React from 'react';
+import cn from 'classnames';
+import { Status } from '../types/Enum';
+
+interface Props {
+  activeCount: number;
+  currentFilter: Status;
+  onFilterChange: (status: Status) => void;
+  hasCompleted: boolean;
+  onClearCompleted: () => void;
+}
+
+export const Footer: React.FC<Props> = ({
+  activeCount,
+  currentFilter,
+  onFilterChange,
+  hasCompleted,
+  onClearCompleted,
+}) => (
+  <footer className="todoapp__footer" data-cy="Footer">
+    <span className="todo-count" data-cy="TodosCounter">
+      {activeCount} items left
+    </span>
+
+    <nav className="filter" data-cy="Filter">
+      {Object.values(Status).map(status => (
+        <a
+          key={status}
+          href={`#/${status === Status.All ? '' : status}`}
+          className={cn('filter__link', {
+            selected: currentFilter === status,
+          })}
+          data-cy={`FilterLink${status.charAt(0).toUpperCase() + status.slice(1)}`}
+          onClick={() => onFilterChange(status)}
+        >
+          {status.charAt(0).toUpperCase() + status.slice(1)}
+        </a>
+      ))}
+    </nav>
+
+    <button
+      type="button"
+      className="todoapp__clear-completed"
+      data-cy="ClearCompletedButton"
+      disabled={!hasCompleted}
+      onClick={onClearCompleted}
+    >
+      Clear completed
+    </button>
+  </footer>
+);