import { type FC, useState } from 'react';

import type { IUserHasId } from '@growi/core';
import { UserPicture } from '@growi/ui/dist/components';
import { Popover, PopoverBody } from 'reactstrap';

import UserPictureList from '../Common/UserPictureList';

import popoverStyles from './user-list-popover.module.scss';

type Props = {
  className: string,
  userList: IUserHasId[]
}

export const EditingUserList: FC<Props> = ({ className, userList }) => {
  const [isPopoverOpen, setIsPopoverOpen] = useState(false);

  const togglePopover = () => setIsPopoverOpen(!isPopoverOpen);

  const firstFourUsers = userList.slice(0, 4);
  const remainingUsers = userList.slice(4);

  return (
    <div className={className}>
      {userList.length > 0 && (
        <div className="d-flex justify-content-end">
          {firstFourUsers.map(user => (
            <div className="ms-1">
              <UserPicture
                user={user}
                noLink
                additionalClassName="border border-info"
              />
            </div>
          ))}
          {remainingUsers.length > 0 && (
            <div className="ms-1">
              <button type="button" id="btn-editing-user" className="btn border-0 bg-info-subtle rounded-pill p-0">
                <span className="fw-bold text-info p-1">+{remainingUsers.length}</span>
              </button>
              <Popover placement="bottom" isOpen={isPopoverOpen} target="btn-editing-user" toggle={togglePopover} trigger="legacy">
                <PopoverBody className={`user-list-popover ${popoverStyles['user-list-popover']}`}>
                  <UserPictureList users={remainingUsers} />
                </PopoverBody>
              </Popover>
            </div>
          )}
        </div>
      )}
    </div>
  );
};