import React, { useState } from 'react';
import PropTypes from 'prop-types';

import { withTranslation } from 'react-i18next';
import { toastError } from '../../util/apiNotification';

import { createSubscribedElement } from '../UnstatedUtils';
import AppContainer from '../../services/AppContainer';
import PageContainer from '../../services/PageContainer';
import UserPicture from '../User/UserPicture';
import PutbackPageModal from '../PutbackPageModal';
import EmptyTrashModal from '../EmptyTrashModal';


const TrashPageAlert = (props) => {
  const { t, appContainer, pageContainer } = props;
  const {
    path, isDeleted, revisionAuthor, updatedAt, hasChildren, isAbleToDeleteCompletely,
  } = pageContainer.state;
  const { currentUser } = appContainer;
  const [isEmptyTrashModalShown, setIsEmptyTrashModalShown] = useState(false);
  const [isPutbackPageModalShown, setIsPutbackPageModalShown] = useState(false);

  function openEmptyTrashModal() {
    setIsEmptyTrashModalShown(true);
  }

  function closeEmptyTrashModal() {
    setIsEmptyTrashModalShown(false);
  }

  function openPutbackPageModal() {
    setIsPutbackPageModalShown(true);
  }

  function closePutbackPageModal() {
    setIsPutbackPageModalShown(false);
  }

  async function onClickDeleteBtn() {
    try {
      await appContainer.apiv3Delete('/pages/empty-trash');
      window.location.reload();
    }
    catch (err) {
      toastError(err);
    }
  }

  async function onClickPutbackBtn() {
    try {
      await /* appContainer.apiv3Delete('/pages/empty-trash'); */
      window.location.reload();
    }
    catch (err) {
      toastError(err);
    }
  }

  function renderEmptyButton() {
    return (
      <button
        href="#"
        type="button"
        className="btn btn-danger rounded-pill btn-sm ml-auto"
        data-target="#emptyTrash"
        onClick={openEmptyTrashModal}
      >
        <i className="icon-trash" aria-hidden="true"></i>{ t('modal_empty.empty_the_trash') }
      </button>
    );
  }

  function renderTrashPageManagementButtons() {
    return (
      <>
        <button
          type="button"
          className="btn btn-info rounded-pill btn-sm ml-auto mr-2"
          onClick={openPutbackPageModal}
          data-target="#Putback"
          data-toggle="modal"
        >
          <i className="icon-action-undo" aria-hidden="true"></i> { t('Put Back') }
        </button>
        <button
          type="button"
          className="btn btn-danger rounded-pill btn-sm mr-2"
          disabled={!isAbleToDeleteCompletely}
          data-target="#deletePage"
          data-toggle="modal"
        >
          <i className="icon-fire" aria-hidden="true"></i> { t('Delete Completely') }
        </button>
      </>
    );
  }

  return (
    <>
      <div className="alert alert-warning py-3 px-4 d-flex align-items-center">
        <div>
          This page is in the trash <i className="icon-trash" aria-hidden="true"></i>.
          {isDeleted && <span><br /><UserPicture user={revisionAuthor} /> Deleted by {revisionAuthor.name} at {updatedAt}</span>}
        </div>
        {(currentUser.admin && path === '/trash' && hasChildren) && renderEmptyButton()}
        {(isDeleted && currentUser != null) && renderTrashPageManagementButtons()}
      </div>
      <PutbackPageModal isOpen={isPutbackPageModalShown} toggle={closePutbackPageModal} onClickSubmit={onClickPutbackBtn} />
      <EmptyTrashModal isOpen={isEmptyTrashModalShown} toggle={closeEmptyTrashModal} onClickSubmit={onClickDeleteBtn} />
    </>
  );
};

/**
 * Wrapper component for using unstated
 */
const TrashPageAlertWrapper = (props) => {
  return createSubscribedElement(TrashPageAlert, props, [AppContainer, PageContainer]);
};


TrashPageAlert.propTypes = {
  t: PropTypes.func.isRequired, // i18next
  appContainer: PropTypes.instanceOf(AppContainer).isRequired,
  pageContainer: PropTypes.instanceOf(PageContainer).isRequired,
};

export default withTranslation()(TrashPageAlertWrapper);