Develop

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 +1,307 @@
-/* eslint-disable max-len */
-/* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, { useState, useEffect, useRef } from 'react';
 import { UserWarning } from './UserWarning';
-
-const USER_ID = 0;
+import { USER_ID, getTodos, deleteTodo, createTodo } from './api/todos';
+import { Todo } from './types/Todo';
+import { Header } from './components/Header';
+import { TodoList } from './components/TodoList';
+import { ErrorItem } from './components/ErrorItem';
+import { FooterItem } from './components/Footer';
+import { updateTodo } from './api/todos';
 
 export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [newTodoTitle, setNewTodoTitle] = useState('');
+  const [errorMessage, setErrorMessage] = useState<string | null>(null);
+  const [filter, setFilter] = useState('all');
+  const [isSubmitting, setIsSubmitting] = useState(false);
+  const inputRef = useRef<HTMLInputElement>(null);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [deletingTodoId, setDeletingTodoId] = useState<number | null>(null);
+  const [isEditing, setIsEditing] = useState(false);
+  const [editingTodoId, setEditingTodoId] = useState<number | null>(null);
+  const [editingTitle, setEditingTitle] = useState('');
+  const [isDeleting, setIsDeleting] = useState(false);
+  const [loadingIds, setLoadingIds] = useState<number[]>([]);
+
+  useEffect(() => {
+    if (inputRef.current && !isSubmitting) {
+      inputRef.current.focus();
+    }
+  }, [todos, isSubmitting]);
+
+  useEffect(() => {
+    if (errorMessage) {
+      const timer = setTimeout(() => {
+        setErrorMessage(null);
+      }, 3000);
+
+      return () => clearTimeout(timer);
+    }
+
+    return undefined;
+  }, [errorMessage]);
+
+  useEffect(() => {
+    setErrorMessage(null);
+    getTodos()
+      .then(setTodos)
+      .catch(() => setErrorMessage('Unable to load todos'));
+  }, []);
+
+  const hasAllTodosCompleted = todos.every(todo => todo.completed);
+  const notCompletedTodos = todos.filter(todo => !todo.completed);
+  const completedTodos = todos.filter(todo => todo.completed);
+
   if (!USER_ID) {
     return <UserWarning />;
   }
 
+  const onUpdate = (id: number, updatedStatus: Partial<Todo>) => {
+    return updateTodo({ id, ...updatedStatus })
+      .then(updatedTodo => {
+        setTodos(currentTodos =>
+          currentTodos.map(todo => (todo.id === id ? updatedTodo : todo)),
+        );
+      })
+      .catch(() => {
+        setErrorMessage('Unable to update a todo');
+      });
+  };
+
+  const handleToggleAll = () => {
+    const haveActive = todos.some(todo => !todo.completed);
+    const todosToUpdate = haveActive
+      ? todos.filter(todo => !todo.completed)
+      : todos;
+
+    setLoadingIds([...loadingIds, ...todosToUpdate.map(todo => todo.id)]);
+
+    Promise.all(
+      todosToUpdate.map(todo => onUpdate(todo.id, { completed: haveActive })),
+    ).finally(() => {
+      setLoadingIds(prevLoadingIds =>
+        prevLoadingIds.filter(
+          id => !todosToUpdate.some(todo => todo.id === id),
+        ),
+      );
+    });
+  };
+
+  const handleToggleTodo = (todo: Todo) => {
+    setLoadingIds([...loadingIds, todo.id]);
+
+    onUpdate(todo.id, { completed: !todo.completed }).finally(() => {
+      setLoadingIds(loadingIds.filter(id => id !== todo.id));
+    });
+  };
+
+  const handleDeleteTodo = (todoId: number) => {
+    setLoadingIds([...loadingIds, todoId]);
+
+    deleteTodo(todoId)
+      .then(() => {
+        setTodos(currentTodos =>
+          currentTodos.filter(todo => todo.id !== todoId),
+        );
+      })
+      .catch(() => {
+        setErrorMessage('Unable to delete a todo');
+      })
+      .finally(() => {
+        setDeletingTodoId(null);
+        setLoadingIds(loadingIds.filter(id => todoId !== id));
+      });
+  };
+
+  const handleClearCompleted = () => {
+    const deletePromises = completedTodos.map(todo =>
+      handleDeleteTodo(todo.id),
+    );
+
+    Promise.all(deletePromises).catch(() => {
+      setErrorMessage('Unable to delete one or more todos');
+    });
+  };
+
+  const handleAddTodo = (event: React.FormEvent) => {
+    event.preventDefault();
+    const trimmedTitle = newTodoTitle.trim();
+
+    if (!newTodoTitle.trim()) {
+      setErrorMessage('Title should not be empty');
+
+      return;
+    }
+
+    const tempTodoItem: Todo = {
+      id: 0,
+      title: newTodoTitle,
+      completed: false,
+      userId: USER_ID,
+    };
+
+    setTempTodo(tempTodoItem);
+    setIsSubmitting(true);
+
+    createTodo({
+      title: trimmedTitle,
+      userId: USER_ID,
+      completed: false,
+    })
+      .then(newTodo => {
+        setTodos(currentTodos => [...currentTodos, newTodo]);
+        setNewTodoTitle('');
+      })
+      .catch(() => setErrorMessage('Unable to add a todo'))
+      .finally(() => {
+        setIsSubmitting(false);
+        setTempTodo(null);
+      });
+  };
+
+  const onDoubleClickHandler = (todo: Todo) => {
+    setEditingTodoId(todo.id);
+    setEditingTitle(todo.title);
+    setIsEditing(true);
+  };
+
+  const handleBlur = (id: number) => {
+    const updatedTitle = editingTitle.trim();
+
+    if (!updatedTitle) {
+      deleteTodo(id)
+        .then(() => {
+          setTodos(currentTodos => currentTodos.filter(todo => todo.id !== id));
+          setEditingTodoId(null);
+          setEditingTitle('');
+          setIsEditing(false);
+        })
+        .catch(() => {
+          setErrorMessage('Unable to delete a todo');
+        });
+
+      return;
+    }
+
+    updateTodo({ id, title: updatedTitle })
+      .then(updatedTodo => {
+        setTodos(currentTodos =>
+          currentTodos.map(todo => (todo.id === id ? updatedTodo : todo)),
+        );
+        setEditingTodoId(null);
+        setEditingTitle('');
+        setIsEditing(false);
+      })
+      .catch(() => {
+        setErrorMessage('Unable to update title');
+      });
+  };
+
+  const handleUpdateTodo = (id: number, event: React.FormEvent) => {
+    event.preventDefault();
+
+    const updatedTitle = editingTitle.trim();
+
+    if (todos.find(todo => todo.id === id)?.title === updatedTitle) {
+      setEditingTodoId(null);
+      setIsEditing(false);
+      setEditingTitle('');
+
+      return;
+    }
+
+    if (!updatedTitle) {
+      setIsSubmitting(true);
+
+      deleteTodo(id)
+        .then(() => {
+          setTodos(currentTodos => currentTodos.filter(todo => todo.id !== id));
+        })
+        .catch(() => {
+          setErrorMessage('Unable to delete a todo');
+        })
+        .finally(() => {
+          setEditingTodoId(null);
+          setIsEditing(false);
+          setEditingTitle('');
+          setIsSubmitting(false);
+        });
+
+      return;
+    }
+
+    setLoadingIds(prevLoadingIds => [...prevLoadingIds, id]);
+
+    updateTodo({ id, title: updatedTitle })
+      .then(updatedTodo => {
+        setTodos(currentTodos =>
+          currentTodos.map(todo => (todo.id === id ? updatedTodo : todo)),
+        );
+        setEditingTodoId(null);
+        setEditingTitle('');
+        setIsEditing(false);
+      })
+      .catch(() => {
+        setErrorMessage('Unable to update a todo');
+      })
+      .finally(() => {
+        setLoadingIds(prevLoadingIds =>
+          prevLoadingIds.filter(loadingId => loadingId !== id),
+        );
+      });
+  };
+
   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
+          hasAllTodosCompleted={hasAllTodosCompleted}
+          handleAddTodo={handleAddTodo}
+          newTodoTitle={newTodoTitle}
+          setNewTodoTitle={setNewTodoTitle}
+          inputRef={inputRef}
+          isSubmitting={isSubmitting}
+          handleToggleAll={handleToggleAll}
+          todos={todos}
+        />
+
+        <TodoList
+          todos={todos}
+          filter={filter}
+          isSubmitting={isSubmitting}
+          deletingTodoId={deletingTodoId}
+          tempTodo={tempTodo}
+          onDelete={handleDeleteTodo}
+          onDoubleClickHandler={onDoubleClickHandler}
+          editingTodoId={editingTodoId}
+          editingTitle={editingTitle}
+          handleToggleTodo={handleToggleTodo}
+          handleBlur={handleBlur}
+          isEditing={isEditing}
+          setEditingTodoId={setEditingTodoId}
+          setEditingTitle={setEditingTitle}
+          handleUpdateTodo={handleUpdateTodo}
+          setIsDeleting={setIsDeleting}
+          isDeleting={isDeleting}
+          loadingIds={loadingIds}
+        />
+
+        {todos.length > 0 && (
+          <FooterItem
+            notCompletedTodos={notCompletedTodos}
+            setFilter={setFilter}
+            filter={filter}
+            handleClearCompleted={handleClearCompleted}
+            completedTodos={completedTodos}
+            handleToggleTodo={handleToggleTodo}
+          />
+        )}
+      </div>
+      <ErrorItem
+        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 = 1350;
+
+export const getTodos = () => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export function deleteTodo(todoId: number) {
+  return client.delete(`/todos/${todoId}`);
+}
+
+export function createTodo({ title, userId, completed }: Omit<Todo, 'id'>) {
+  return client.todo<Todo>('/todos', { title, userId, completed });
+}
+
+export function updateTodo({ id, title, userId, completed }: Todo) {
+  return client.patch<Todo>(`/todos/${id}`, { title, userId, completed });
+}