add task solution

src/App.tsx

@@ -1,24 +1,261 @@
-/* eslint-disable max-len */
 /* eslint-disable jsx-a11y/control-has-associated-label */
-import React from 'react';
+import React, {
+  FormEvent, useEffect, useMemo, useState,
+} from 'react';
+import classNames from 'classnames';
+import { Todo } from './types/Todo';
+import { FilterType } from './types/FilterTypes';
+import { Error } from './types/Error';
+import { getTodos } from './api/todos';
+import * as postService from './api/todos';
 import { UserWarning } from './UserWarning';
+import { TodoList } from './components/TodoList';
+import { TodoFilter } from './components/FilterTodo';
+import { TodoError } from './components/TodoError';
+import { TodoItem } from './components/TodoItem';
 
-const USER_ID = 0;
+const USER_ID = 11707;
+
+const getVisibleTodos = (todos: Todo[], status: FilterType) => {
+  return todos.filter(todo => {
+    switch (status) {
+      case FilterType.Completed:
+        return todo.completed;
+
+      case FilterType.Active:
+        return !todo.completed;
+
+      default:
+        return true;
+    }
+  });
+};
 
 export const App: React.FC = () => {
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [status, setStatus] = useState(FilterType.All);
+  const [errorMessage, setErrorMessage] = useState(Error.None);
+  const [query, setQuery] = useState('');
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [loadingIds, setLoadingIds] = useState<number[]>([]);
+
+  useEffect(() => {
+    getTodos(USER_ID)
+      .then(setTodos)
+      .catch(() => setErrorMessage(Error.Load));
+  }, []);
+
+  const visibleTodos = useMemo(() => getVisibleTodos(todos, status),
+    [todos, status]);
+
+  const todosCount = useMemo(() => todos.filter(todo => !todo.completed).length,
+    [todos]);
+
+  const isCompletedTodos = useMemo(() => todos.some(todo => todo.completed),
+    [todos]);
+
+  const completedTodoCount = todos.filter(todo => todo.completed).length;
+
+  const handleQuery = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setQuery(event.target.value);
+  };
+
+  const handleSubmit = (event: FormEvent) => {
+    event.preventDefault();
+
+    if (query.trim() === '') {
+      setErrorMessage(Error.EmptyTitle);
+
+      return;
+    }
+
+    const newTodo = {
+      title: query,
+      completed: false,
+      userId: USER_ID,
+    };
+
+    setTempTodo({ ...newTodo, id: 0 });
+    setLoadingIds((ids) => [...ids, 0]);
+
+    postService.createTodo(newTodo)
+      .then((value) => {
+        setTodos(currentTodos => [...currentTodos, value]);
+        setTempTodo(null);
+      })
+      .catch((error) => {
+        setErrorMessage(Error.Add);
+        throw error;
+      })
+      .finally(() => {
+        setLoadingIds((ids) => ids.filter(id => id !== 0));
+      });
+
+    setQuery('');
+  };
+
+  const onDeleteTodo = (todoId: number) => {
+    setLoadingIds((ids) => [...ids, todoId]);
+    postService.deleteTodo(todoId)
+      .then(() => setTodos(
+        currentTodos => currentTodos.filter(
+          todo => todo.id !== todoId,
+        ),
+      ))
+      .catch(() => setErrorMessage(Error.Delete))
+      .finally(() => setLoadingIds((ids) => ids.filter(id => id !== todoId)));
+  };
+
+  const onDeleteCompleted = () => {
+    todos.filter(todo => todo.completed).forEach((todo) => {
+      onDeleteTodo(todo.id);
+    });
+  };
+
   if (!USER_ID) {
     return <UserWarning />;
   }
 
+  const handleToggleAll = () => {
+    const uncompletedTodos = todos.filter(todo => !todo.completed);
+    const uncompletedTodosIds = uncompletedTodos.map(todo => todo.id);
+
+    if (uncompletedTodos.length === 0) {
+      setLoadingIds(currentIds => [
+        ...currentIds,
+        ...todos.map(
+          todo => todo.id,
+        )]);
+
+      Promise.all(todos.map(todo => {
+        return postService.updateTodo(todo.id, {
+          completed: !todo.completed,
+        });
+      }))
+        .then(() => {
+          getTodos(USER_ID)
+            .then((value) => {
+              setTodos(value);
+              setLoadingIds([]);
+            })
+            .catch(() => {
+              setErrorMessage(Error.Load);
+            });
+        })
+        .catch(() => {
+          setErrorMessage(Error.Update);
+        });
+
+      return;
+    }
+
+    setLoadingIds(currentIds => [...currentIds, ...uncompletedTodosIds]);
+
+    Promise.all(uncompletedTodos.map(todo => {
+      return postService.updateTodo(todo.id, {
+        completed: !todo.completed,
+      });
+    }))
+      .then(() => {
+        getTodos(USER_ID)
+          .then((value) => {
+            setTodos(value);
+          })
+          .catch(() => {
+            setErrorMessage(Error.Load);
+          })
+
+          .finally(() => {
+            setLoadingIds([]);
+          });
+      })
+      .catch(() => {
+        setErrorMessage(Error.Update);
+      });
+  };
+
   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={classNames('todoapp__toggle-all', {
+                active: completedTodoCount !== 0,
+              })}
+              onClick={handleToggleAll}
+            />
+          )}
+          <form onSubmit={(event) => handleSubmit(event)}>
+            <input
+              type="text"
+              className="todoapp__new-todo"
+              placeholder="What needs to be done?"
+              value={query}
+              onChange={handleQuery}
+            />
+          </form>
+        </header>
+
+        {!!todos.length && (
+          <>
+            <TodoList
+              todos={visibleTodos}
+              onDeleteTodo={onDeleteTodo}
+              loadingIds={loadingIds}
+              setTodos={setTodos}
+              setLoadingIds={setLoadingIds}
+            />
+
+            {tempTodo && (
+              <TodoItem
+                todo={tempTodo}
+                onDeleteTodo={onDeleteTodo}
+                loadingIds={loadingIds}
+                setTodos={setTodos}
+                setLoadingIds={setLoadingIds}
+                todos={visibleTodos}
+              />
+            )}
+
+            <footer className="todoapp__footer">
+              <span className="todo-count">
+                {todosCount === 1 ? ('1 item left')
+                  : (`${todosCount} items left`)}
+              </span>
+
+              <TodoFilter
+                status={status}
+                onStatusChange={setStatus}
+              />
+
+              <button
+                type="button"
+                className={classNames(
+                  'todoapp__clear-completed',
+                  { 'todoapp__clear-completed--disabled': !isCompletedTodos },
+                )}
+                onClick={onDeleteCompleted}
+              >
+                Clear completed
+              </button>
+            </footer>
+          </>
+        )}
+      </div>
+
+      {
+        errorMessage && (
+          <TodoError
+            error={errorMessage}
+            onErrorChange={setErrorMessage}
+          />
+        )
+      }
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,21 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const getTodos = (userId: number) => {
+  return client.get<Todo[]>(`/todos?userId=${userId}`);
+};
+
+export const createTodo = ({ title, completed, userId }: Omit <Todo, 'id'>) => {
+  return client.post<Todo>('/todos', { title, completed, userId });
+};
+
+export const deleteTodo = (todoId: number) => {
+  return client.delete(`/todos/${todoId}`);
+};
+
+export const updateTodo = (
+  todoId: number,
+  data: { completed?: boolean, title?: string },
+) => {
+  return client.patch(`/todos/${todoId}`, data);
+};

src/components/FilterTodo.tsx

@@ -0,0 +1,43 @@
+import classNames from 'classnames';
+import { FilterType } from '../types/FilterTypes';
+
+type Props = {
+  status: FilterType,
+  onStatusChange: (filter: FilterType) => void,
+};
+
+export const TodoFilter: React.FC<Props> = ({ status, onStatusChange }) => {
+  return (
+    <nav className="filter">
+      <a
+        href="#/"
+        className={classNames('filter__link', {
+          selected: status === FilterType.All,
+        })}
+        onClick={() => onStatusChange(FilterType.All)}
+      >
+        {FilterType.All}
+      </a>
+
+      <a
+        href="#/active"
+        className={classNames('filter__link', {
+          selected: status === FilterType.Active,
+        })}
+        onClick={() => onStatusChange(FilterType.Active)}
+      >
+        {FilterType.Active}
+      </a>
+
+      <a
+        href="#/completed"
+        className={classNames('filter__link', {
+          selected: status === FilterType.Completed,
+        })}
+        onClick={() => onStatusChange(FilterType.Completed)}
+      >
+        {FilterType.Completed}
+      </a>
+    </nav>
+  );
+};

src/components/TodoError.tsx

@@ -0,0 +1,42 @@
+import { useEffect } from 'react';
+import classNames from 'classnames';
+import { Error } from '../types/Error';
+
+type Props = {
+  error: Error,
+  onErrorChange: (error: Error) => void,
+};
+
+export const TodoError: React.FC<Props> = ({ error, onErrorChange }) => {
+  useEffect(() => {
+    let timeoutId: NodeJS.Timeout;
+
+    if (error) {
+      timeoutId = setTimeout(() => {
+        onErrorChange(Error.None);
+      }, 3000);
+    }
+
+    return () => {
+      if (timeoutId) {
+        clearTimeout(timeoutId);
+      }
+    };
+  }, [error, onErrorChange]);
+
+  return (
+    <div className={classNames('notification',
+      'is-danger is-light has-text-weight-normal', {
+        hidden: error === Error.None,
+      })}
+    >
+      <button
+        type="button"
+        className="delete"
+        onClick={() => onErrorChange(Error.None)}
+        aria-label="close the error window"
+      />
+      {error}
+    </div>
+  );
+};