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import { JoomlaEditor, JoomlaEditorButton } from 'editor-api';
import JoomlaDialog from 'joomla.dialog';

/**
 * @copyright  (C) 2018 Open Source Matters, Inc.
<https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see
LICENSE.txt
 */
const insertReadmoreHandler = editor => {
  const content = editor.getValue();
  if (!content) {
    editor.replaceSelection('<hr
id="system-readmore">');
  } else if (content &&
!content.match(/<hr\s+id=("|')system-readmore("|')\s*\/*>/i))
{
    editor.replaceSelection('<hr
id="system-readmore">');
  } else {
   
JoomlaDialog.alert(Joomla.Text._('PLG_READMORE_ALREADY_EXISTS'));
  }
};

// @TODO: Remove in Joomla 6
window.insertReadmore = () => {
  // eslint-disable-next-line no-console
  console.warn('Method window.insertReadmore() is deprecated, use
button action "insert-readmore."');
  const editor = JoomlaEditor.getActive();
  if (!editor) {
    throw new Error('An active editor are not available');
  }
  insertReadmoreHandler(editor);
};
JoomlaEditorButton.registerAction('insert-readmore',
insertReadmoreHandler);