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THE FACADE PATTERN - useHooks

function useUsersManagement() {
  const [users, setUsers] = useState([]);
 
  function addUser(user) {
    setUsers([
      ...users,
      user
    ])
  }
 
  function deleteUser(userId) {
    const userIndex = users.findIndex(user => user.id === userId);
    if (userIndex > -1) {
      const newUsers = [...users];
      newUsers.splice(userIndex, 1);
      setUsers(
        newUsers
      );
    }
  }
 
  return {
    users,
    addUser,
    deleteUser
  }
}

function useAddUserModalManagement() {
  const [isAddUserModalOpened, setAddUserModalVisibility] = useState(false);
 
  function openAddUserModal() {
    setAddUserModalVisibility(true);
  }
 
  function closeAddUserModal() {
    setAddUserModalVisibility(false);
  }
  return {
    isAddUserModalOpened,
    openAddUserModal,
    closeAddUserModal
  }
}

import React from 'react';
import AddUserModal from './AddUserModal';
import UsersTable from './UsersTable';
import useUsersManagement from "./useUsersManagement";
import useAddUserModalManagement from "./useAddUserModalManagement";
 
const Users = () => {
  const {
    users,
    addUser,
    deleteUser
  } = useUsersManagement();
  const {
    isAddUserModalOpened,
    openAddUserModal,
    closeAddUserModal
  } = useAddUserModalManagement();
 
  return (
    <>
      <button onClick={openAddUserModal}>Add user</button>
      <UsersTable
        users={users}
        onDelete={deleteUser}
      />
      <AddUserModal
        isOpened={isAddUserModalOpened}
        onClose={closeAddUserModal}
        onAddUser={addUser}
      />
    </>
  )
};
 
export default Users;

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