#!/bin/bash

#
# Copyright (c) 2015, 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=$6
if [ -z "$FILE" ]
then
  # Get input from stdin
  unset FILE
  trap -- 'rm -f "$FILE"' EXIT
  FILE=$(mktemp "${TMPDIR:-/tmp}/brftoembosser.XXXXXX")
  cat > "$FILE"
fi

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

SENDFF=$(getOption SendFF)
SENDSUB=$(getOption SendSUB)

TOPMARGIN=$(getOptionNumber TopMargin)
LEFTMARGIN=$(getOptionNumber LeftMargin)

echo "INFO: Writing text to generic embosser" >&2

while [ $NB -gt 0 ]
do
  # Produce top margin
  if [ -n "$TOPMARGIN" ]; then
    while [ $TOPMARGIN -gt 0 ]
    do
      echo
      TOPMARGIN=$(($TOPMARGIN - 1))
    done
  fi
  LEFTSPACES=""
  if [ -n "$LEFTMARGIN" ]; then
    while [ $LEFTMARGIN -gt 0 ]
    do
      LEFTSPACES="$LEFTSPACES "
      LEFTMARGIN=$(($LEFTMARGIN - 1))
    done
  fi

  < "$FILE" \
    sed -e "s/^/$LEFTSPACES/" \
        -e 's/^$/'$'\015''/' \
        -e 's/\([^'$'\015'']\)$/\1'$'\015''/'
  
  if [ "$SENDFF" = True ]
  then
    printf '\014'
  fi
  if [ "$SENDSUB" = True ]
  then
    printf '\032'
  fi
  NB=$(($NB - 1))
done

echo "INFO: Ready" >&2
exit 0
