#!/bin/bash

#
# Copyright (c) 2017 Samuel Thibault <samuel.thibault@ens-lyon.org>
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
# 

# Make sure we have enough options
if [ $# != 5 -a $# != 6 ]; then
  echo "ERROR: $0 jobid user name nb options [filename]" >&2
  exit 1
fi

NB=$4
OPTIONS=$5
FILE=$6

case $0 in
  *svgtopdf*) INPUT_FORMAT=svg ;;
  *xfigtopdf*) INPUT_FORMAT=fig ;;
  *wmftopdf*) INPUT_FORMAT=wmf ;;
  *emftopdf*) INPUT_FORMAT=emf ;;
  *cgmtopdf*) INPUT_FORMAT=cgm ;;
  *cmxtopdf*) INPUT_FORMAT=cmx ;;
esac

trap -- 'rm -f "$FILE_FORMAT" "$FILE_PDF"' EXIT
FILE_FORMAT=$(mktemp "${TMPDIR:-/tmp}/vectortopdf.XXXXXX.${INPUT_FORMAT}")
FILE_PDF=$(mktemp "${TMPDIR:-/tmp}/vectortopdf.XXXXXX.pdf")

if [ -z "$FILE" ]
then
  # Get input from stdin
  cat > "$FILE_FORMAT"
else
  cat "$FILE" > "$FILE_FORMAT"
fi

. /usr/share/cups/braille/cups-braille.sh

checkTool inkscape inkscape "embossing ${INPUT_FORMAT} vector images"

INKSCAPE="inkscape --export-area-drawing"

echo "INFO: Converting image" 1>&2
printf "DEBUG: Calling $INKSCAPE on '%s'\n" "$FILE_FORMAT" 1>&2

CURR_VERSION=$(inkscape --version | awk '{print $2}')
NEW_VERSION='1.0'

printf "DEBUG: Inkscape version: '%s'\n" "$CURR_VERSION" 1>&2

# Inkscape versions 1.0.x and greater do not support '-A' flag

if [ $(printf '%s\n' "$NEW_VERSION" "$CURR_VERSION" | sort -V | head -n1) = "$NEW_VERSION" ]; then
	$INKSCAPE --export-type=pdf --export-filename="$FILE_PDF" "$FILE_FORMAT"
else
	$INSCKAPE -z -A "$FILE_PDF" "$FILE_FORMAT"
fi

cat "$FILE_PDF"

echo "INFO: Ready" >&2