#!/bin/env bash

#    Delete critical metadata from an image or images using Exiftool
#    Copyright (C) 2017,2023  Pekka Helenius
#
#    This program is free software; you can redistribute it and/or
#    modify it under the terms of the GNU General Public License
#    as published by the Free Software Foundation; either version 2
#    of the License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
###############################################

# We get the directory just from the first filename.
INPUT_DIR=$(dirname "${1}")

#kdialog --yesnocancel "Do you really want to delete EXIF data for the selection?";

#if [[ "$?" = 0 ]]
#then
  while [[ $# -gt 0 ]]
  do

    # Get the correct file extension for an input file, to be used for the new file.
    EXTENSION=$(echo "${1}" | rev | cut -f 1 -d '.' | rev)
    FILE=$(basename "${1}" | sed "s/\.\w*$/.$EXTENSION/")

    exiftool \
      -ApertureValue= \
      -ColorSpace= \
      -ExposureCompensation= \
      -ExposureMode= \
      -ExposureProgram= \
      -ExposureTime= \
      -FNumber= \
      -Flash= \
      -FocalLength= \
      -FocalPlaneResolutionUnit= \
      -FocalPlaneXResolution= \
      -FocalPlaneYResolution= \
      -Lens= \
      -LensInfo= \
      -LensModel= \
      -LensSerialNumber= \
      -Make= \
      -MaxApertureValue= \
      -MeteringMode= \
      -Model= \
      -PhotoshopThumbnail= \
      -RecommendedExposureIndex= \
      -ResolutionUnit= \
      -SensitivityType= \
      -SerialNumber= \
      -ShutterSpeedValue= \
      -Software= \
      -Version= \
      -WhiteBalance= \
      -XResolution= \
      -YResolution= \
      -creatortool= \
      -historysoftwareagent= \
      -iso= \
      -adobe:all= \
      -xmp:subject= \
      -xmp:all= \
      -photoshop:all= \
      "${INPUT_DIR}/${FILE}" \
      -overwrite_original

    # Move to the next file.
    shift
  done

#  kdialog --msgbox "Exif metadata deleted!"
#else
#  exit 0
#fi