develop

src/App.tsx

@@ -1,26 +1,142 @@
-/* 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 { UserWarning } from './UserWarning';
+import React, { useEffect, useState, useCallback } from 'react';
+import { getTodos } from './api/todos';
 
-const USER_ID = 0;
+import { Todo } from './types/Todo';
+import { ErrorMessages } from './types/ErrorTypes';
+import { FilterTypes } from './types/FilterTypes';
+
+import { getVisibleTodos } from './utils/getVisibleTodos';
+import { handleError } from './utils/handleError';
+
+import * as todoService from './api/todos';
+
+import { TodoHeader } from './components/TodoHeader';
+import { TodoList } from './components/TodoList';
+import { TodoFooter } from './components/TodoFooter';
+import { ErrorPannel } from './components/ErrorPannel';
 
 export const App: React.FC = () => {
-  if (!USER_ID) {
-    return <UserWarning />;
+  const [todos, setTodos] = useState<Todo[]>([]);
+  const [tempTodo, setTempTodo] = useState<Todo | null>(null);
+  const [todosToDelete, setTodosToDelete] = useState<number[]>([]);
+
+  const [selectedFilterType, setSelectedFilterType] = useState<FilterTypes>(
+    FilterTypes.ALL,
+  );
+  const [errorMessage, setErrorMessage] = useState<ErrorMessages>(
+    ErrorMessages.NONE,
+  );
+
+  function handleUpload() {
+    getTodos()
+      .then(setTodos)
+      .catch(() => handleError(setErrorMessage, ErrorMessages.LOAD_FAIL));
+  }
+
+  const filteredTodos = getVisibleTodos(todos, selectedFilterType);
+  const activeTodosCount = todos.filter(todo => !todo.completed).length;
+  const completedIds = todos
+    .filter(todo => todo.completed)
+    .map(todo => todo.id);
+
+  function handleClearCompleted() {
+    setTodosToDelete(completedIds);
   }
 
+  const deleteTodos = useCallback(
+    (idsToDelete: number[]) => {
+      Promise.allSettled(
+        idsToDelete.map(id => {
+          todoService
+            .deleteTodo(id)
+            .then(() => {
+              setTodos(prevTodos => prevTodos.filter(todo => todo.id !== id));
+              setTodosToDelete(() => []);
+            })
+            .catch(() => {
+              setTodos(todos);
+              handleError(setErrorMessage, ErrorMessages.DELETE_FAIL);
+              setTodosToDelete(() => []);
+            });
+        }),
+      );
+    },
+    [setTodos, setTodosToDelete, setErrorMessage, todos],
+  );
+
+  function addTodo({ title, userId, completed }: Todo) {
+    return todoService
+      .addTodo({ title, userId, completed })
+      .then(newTodo => {
+        setTodos([...todos, newTodo]);
+        setTempTodo(null);
+      })
+      .catch(error => {
+        setTempTodo(null);
+        handleError(setErrorMessage, ErrorMessages.ADD_FAIL);
+
+        throw error;
+      });
+  }
+
+  const updateTodo = useCallback((todo: Todo) => {
+    return todoService
+      .updateTodo(todo.id, todo)
+      .then(updatedTodo => {
+        setTodos(current =>
+          current.map(currentTodo =>
+            currentTodo.id === updatedTodo.id ? updatedTodo : currentTodo,
+          ),
+        );
+      })
+      .catch(error => {
+        handleError(setErrorMessage, ErrorMessages.UPDATE_FAIL);
+        throw error;
+      });
+  }, []);
+
+  useEffect(handleUpload, [todosToDelete.length]);
+
+  useEffect(() => {
+    if (todosToDelete.length > 0) {
+      deleteTodos(todosToDelete);
+    }
+  }, [deleteTodos, todosToDelete]);
+
   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
+          onTempTodo={setTempTodo}
+          onErrorMessage={setErrorMessage}
+          onAdd={addTodo}
+          onUpdate={updateTodo}
+          todos={todos}
+        />
+        {!!todos.length && (
+          <>
+            <TodoList
+              onTodosToDelete={setTodosToDelete}
+              todos={filteredTodos}
+              todosToDelete={todosToDelete}
+              tempTodo={tempTodo}
+              onUpdate={updateTodo}
+            />
+            <TodoFooter
+              onSelectedFilterType={setSelectedFilterType}
+              selectedFilterType={selectedFilterType}
+              activeTodosCount={activeTodosCount}
+              completedTodosIds={completedIds}
+              clearCompletedTodos={handleClearCompleted}
+            />
+          </>
+        )}
+      </div>
+      <ErrorPannel errorMessage={errorMessage} />
+    </div>
   );
 };

src/api/todos.ts

@@ -0,0 +1,20 @@
+import { Todo } from '../types/Todo';
+import { client } from '../utils/fetchClient';
+
+export const USER_ID = 1633;
+
+export const getTodos = (): Promise<Todo[]> => {
+  return client.get<Todo[]>(`/todos?userId=${USER_ID}`);
+};
+
+export const deleteTodo = (userId: number) => {
+  return client.delete(`/todos/${userId}`);
+};
+
+export const addTodo = ({ title, userId, completed }: Omit<Todo, 'id'>) => {
+  return client.post<Todo>(`/todos`, { title, userId, completed });
+};
+
+export const updateTodo = (userId: number, data: Todo) => {
+  return client.patch<Todo>(`/todos/${userId}`, data);
+};

src/components/ErrorPannel.tsx

@@ -0,0 +1,25 @@
+import React from 'react';
+import cn from 'classnames';
+import { ErrorMessages } from '../types/ErrorTypes';
+
+interface Props {
+  errorMessage: ErrorMessages;
+}
+
+export const ErrorPannel: React.FC<Props> = ({ errorMessage }) => {
+  return (
+    <div
+      data-cy="ErrorNotification"
+      className={cn('notification is-danger is-light has-text-weight-normal', {
+        hidden: !errorMessage,
+      })}
+    >
+      <button
+        data-cy="HideErrorButton"
+        type="button"
+        className={cn('delete', { hidden: !errorMessage })}
+      />
+      {errorMessage}
+    </div>
+  );
+};

src/components/TodoFooter.tsx

@@ -0,0 +1,52 @@
+import cn from 'classnames';
+import { FilterTypes } from '../types/FilterTypes';
+
+interface Props {
+  onSelectedFilterType: (type: FilterTypes) => void;
+  clearCompletedTodos: () => void;
+  selectedFilterType: FilterTypes;
+  activeTodosCount: number;
+  completedTodosIds: number[];
+}
+
+export const TodoFooter: React.FC<Props> = ({
+  clearCompletedTodos,
+  onSelectedFilterType,
+  selectedFilterType,
+  activeTodosCount,
+  completedTodosIds,
+}) => {
+  return (
+    <footer className="todoapp__footer" data-cy="Footer">
+      <span className="todo-count" data-cy="TodosCounter">
+        {activeTodosCount} items left
+      </span>
+
+      <nav className="filter" data-cy="Filter">
+        {Object.values(FilterTypes).map(value => (
+          <a
+            key={value}
+            href={value === FilterTypes.ALL ? `#/` : `#/${value.toLowerCase()}`}
+            className={cn('filter__link', {
+              selected: selectedFilterType === value,
+            })}
+            data-cy={`FilterLink${value}`}
+            onClick={() => onSelectedFilterType(value)}
+          >
+            {value}
+          </a>
+        ))}
+      </nav>
+
+      <button
+        type="button"
+        className="todoapp__clear-completed"
+        data-cy="ClearCompletedButton"
+        disabled={!completedTodosIds.length}
+        onClick={clearCompletedTodos}
+      >
+        Clear completed
+      </button>
+    </footer>
+  );
+};

src/components/TodoHeader.tsx

@@ -0,0 +1,113 @@
+import { useEffect, useRef, useState } from 'react';
+import cn from 'classnames';
+import { USER_ID } from '../api/todos';
+
+import { ErrorMessages } from '../types/ErrorTypes';
+import { Todo } from '../types/Todo';
+
+import { handleError } from '../utils/handleError';
+
+interface Props {
+  onTempTodo: (todo: Todo | null) => void;
+  onErrorMessage: (type: ErrorMessages) => void;
+  onAdd: (todo: Todo) => Promise<void>;
+  onUpdate: (todos: Todo) => Promise<void>;
+  todos: Todo[];
+}
+
+export const TodoHeader: React.FC<Props> = ({
+  todos,
+  onAdd,
+  onUpdate,
+  onErrorMessage,
+  onTempTodo,
+}) => {
+  const [title, setTitle] = useState('');
+  const [isSubmiting, setIsSubmiting] = useState(false);
+
+  const isAllCompleted =
+    todos.every(todo => todo.completed) && todos.length !== 0;
+
+  const todoInput = useRef<HTMLInputElement>(null);
+
+  const handleSubmit = (event: React.FormEvent) => {
+    event.preventDefault();
+    setIsSubmiting(true);
+
+    if (!title) {
+      handleError(onErrorMessage, ErrorMessages.EMPTY_TITLE);
+      setIsSubmiting(false);
+
+      return;
+    }
+
+    const tempTodo = {
+      id: 0,
+      userId: USER_ID,
+      title: title.trim(),
+      completed: false,
+    };
+
+    onTempTodo(tempTodo);
+    onErrorMessage(ErrorMessages.NONE);
+
+    onAdd(tempTodo)
+      .then(() => {
+        setTitle('');
+      })
+      .catch(() => {
+        handleError(onErrorMessage, ErrorMessages.ADD_FAIL);
+        onTempTodo(null);
+      })
+      .finally(() => {
+        onTempTodo(null);
+        setIsSubmiting(false);
+      });
+  };
+
+  const handleInput = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setTitle(event.target.value.trimStart());
+    onErrorMessage(ErrorMessages.NONE);
+  };
+
+  const handleToggle = () => {
+    if (isAllCompleted) {
+      todos.map(todo => onUpdate({ ...todo, completed: false }));
+    } else {
+      todos
+        .filter(todo => !todo.completed)
+        .map(todo => onUpdate({ ...todo, completed: true }));
+    }
+  };
+
+  useEffect(() => {
+    todoInput.current?.focus();
+  }, [title, isSubmiting, todos.length]);
+
+  return (
+    <header className="todoapp__header">
+      {!!todos.length && (
+        <button
+          type="button"
+          className={cn('todoapp__toggle-all ', { active: isAllCompleted })}
+          data-cy="ToggleAllButton"
+          onClick={handleToggle}
+        />
+      )}
+
+      <form onSubmit={handleSubmit}>
+        <input
+          data-cy="NewTodoField"
+          type="text"
+          className="todoapp__new-todo"
+          placeholder="What needs to be done?"
+          value={title}
+          onChange={handleInput}
+          autoFocus
+          disabled={isSubmiting}
+          ref={todoInput}
+        />
+      </form>
+    </header>
+  );
+};