/*
 * (c) Copyright Ascensio System SIA 2010-2024
 *
 * 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 20A-6 Ernesta Birznieka-Upish
 * street, Riga, Latvia, EU, LV-1050.
 *
 * 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
 *
 */

'use strict';

const exifParser = require("exif-parser");
const Jimp = require("jimp");

async function fixImageExifRotation(ctx, buffer) {
  if (!buffer) {
    return buffer;
  }
  //todo move to DocService dir common
  try {
    let parser = exifParser.create(buffer);
    let exif = parser.parse();
    if (exif.tags?.Orientation > 1) {
      ctx.logger.debug('fixImageExifRotation remove exif and rotate:%j', exif);
      let image = await Jimp.read(buffer);
      //remove exif
      image.bitmap.exifBuffer = undefined;
      //set jpeg and png quality
      //https://www.imagemagick.org/script/command-line-options.php#quality
      image.quality(90);
      image.deflateLevel(7);
      buffer = await image.getBufferAsync(Jimp.AUTO);
    }
  } catch (e) {
    ctx.logger.debug('fixImageExifRotation error:%s', e.stack);
  }
  return buffer;
}

module.exports = {
  fixImageExifRotation
};