// (c) Copyright Ascensio System SIA 2009-2024
//
// This program is a free software product.
// You can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
// any third-party rights.
//
// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For details, see
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
//
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
//
// The  interactive user interfaces in modified source and object code versions of the Program must
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
//
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
// trademark law for use of our trademarks.
//
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode

import { useRef, useState, useEffect } from "react";

const useFitText = (
  campaignBackground: string,
  currentFontSize: string = "13px",
) => {
  const ref: React.RefObject<HTMLDivElement> = useRef(null);
  const wrapperRef: React.RefObject<HTMLDivElement> = useRef(null);

  const [fontSize, setFontSize] = useState(parseInt(currentFontSize, 10));

  useEffect(() => {
    setFontSize(parseInt(currentFontSize, 10));
  }, [campaignBackground, currentFontSize]);

  useEffect(() => {
    const isOverflow =
      !!ref.current &&
      !!wrapperRef.current &&
      ref.current.scrollHeight > wrapperRef.current.offsetHeight;

    if (isOverflow) {
      const newFontSize = fontSize - 2;
      setFontSize(newFontSize);
    }
  }, [fontSize]);

  return { fontSize: `${fontSize}px`, ref, wrapperRef };
};

export default useFitText;