#!/bin/bash

# Copyright (C) 2012 LAFKON/Christoph Haag.
# ---------------------------------------------------------------------- #
# This is free software, and you may redistribute it under the GPL.
# This Software comes with absolutely no warranty.
# For details see the license: http://www.forkable.eu/utils/licenses/gpl
# ---------------------------------------------------------------------- #
# http://www.forkable.eu/generators/swaperex/do.sh
# ______________________________________________________________________ #


  TMPDIR=tmp; rm $TMPDIR/*
  if [ F$1 = "FA2" ]; then
  OUTPUTDIR=o/A2
  FORMAT=A2
  else
  OUTPUTDIR=o/A3
  FORMAT=A3
  fi
  LAYERID=layerid
  COMBIDIR=$TMPDIR/combinations ;
  SVGDIR=.

# --------------------------------------------------------------------- #
  source i/free/bash/separateLayers.function
# ----------------------------------------------------------------- #

  SVGLIST=$TMPDIR/`date +%s`.list
  ls $SVGDIR | grep svg > $SVGLIST
  separateLayers

# ================================================================= #

 for IDENTIFIER in `ls ${SVGDIR}/ | \
                    grep svg | cut -d "-" -f 1`
  do
     echo $IDENTIFIER

 SOURCELIST=$TMPDIR/source.list; rm $SOURCELIST
 #######################################
 # WRITE LIST WITH POSSIBLE SOURCES    #
 #######################################
 ls   $TMPDIR/*.layer | \
 grep ${IDENTIFIER}-      >  $SOURCELIST
 #######################################
 if [ `cat $SOURCELIST | wc -l` -le 0 ];then exit 0; fi

 TICK=0
 rm $COMBIDIR/*.list

 K=1
 while [ $K -le 250 ]; do

 LAYERLIST=$COMBIDIR/`date +%s%N`${TICK}${K}.list;
 #####################################################################
 # WRITE LIST WITH LAYERS,SORT,UNIQ (LAYERID)                        #
 #####################################################################

 for LAYER in `grep -h $LAYERID \`cat $SOURCELIST\` | \
               grep -v XX | sed 's/>//g' | cut -d "\"" -f 1-2 | \
               sort | uniq`
  do
     SELECTLAYERFILE=`grep -H $LAYER \`cat $SOURCELIST \` | \
                      cut -d : -f 1 | shuf -n 1`
     echo $SELECTLAYERFILE >> $LAYERLIST
  done

 SVG=`ls $SVGDIR | grep $IDENTIFIER | head -1`
 HEADENDLINENUMBER=`cat -n $SVGDIR/$SVG | \
                    grep $HEADEND | \
                    cut -f 1 | \
                    head -1`

 if [ `fdupes $COMBIDIR | wc -l` -lt 1 ]; then

 #####################################################################
 # WRITE ALL LAYERS TO A NEW SVG FILE                                #
 #####################################################################

  BASENAME=`echo \`basename $SVG\` | cut -d "." -f 1 | cut -d "-" -f 1`

  MDNAME=${BASENAME}-${FORMAT}_`echo \`basename $SVG \` | \
          md5sum | cut -c 1-3`
  NEWNAME=${MDNAME}`echo ${RANDOM} | \
                    md5sum | rev | \
                    cut -c 4-6``echo ${RANDOM} | cut -c 1-2`

  NEWSVG=$TMPDIR/${NEWNAME}.svg
  NEWPDF=$TMPDIR/${NEWNAME}_tmp.pdf


  head -n $HEADENDLINENUMBER $SVGDIR/$SVG     >  $NEWSVG

  for LAYERFILE in `cat $LAYERLIST | sort`
   do
      FILE=${LAYERFILE##*/}
      NAME=${FILE%%.*}
      ID=`grep $LAYERID $LAYERFILE | cut -d "\"" -f 2 | head -1`

      if [ `find $TMPDIR -name "${NAME}.svg" | \
	    wc -l` -lt 1 ]; then
            cat $LAYERFILE                   >> $NEWSVG
      fi
   done

   echo "</svg>"                             >> $NEWSVG
   sed -i 's/style="display:none"//g'           $NEWSVG

   inkscape --export-pdf=$NEWPDF \
            --export-text-to-path $NEWSVG

  K=`expr $K + 1`

 else

 echo "COMBINATION EXISTS"
 rm $LAYERLIST

 TICK=`expr $TICK + 1`

 if [ $TICK -gt 100 ]; then

    K=`expr $K + 100`

  fi
 fi


 TMPTEX=${RANDOM}.tex

 echo "\documentclass[9pt]{scrbook} " >  $TMPTEX
 echo "\usepackage{pdfpages}        " >> $TMPTEX
 echo "\usepackage{geometry}        " >> $TMPTEX
 if [ $FORMAT = "A2" ]; then
 echo "\geometry{paperwidth=297mm,  " >> $TMPTEX
 echo "          paperheight=420mm} " >> $TMPTEX
 else
 echo "\geometry{paperwidth=420mm,  " >> $TMPTEX
 echo "          paperheight=594mm} " >> $TMPTEX
 fi
 echo "\begin{document}             " >> $TMPTEX
 echo "                             " >> $TMPTEX
 echo "\includepdfmerge             " >> $TMPTEX
 echo "[                            " >> $TMPTEX
 echo "nup=1x1,pages=1,             " >> $TMPTEX
 echo "scale=1.02,		    " >> $TMPTEX
 echo "offset=0 25                  " >> $TMPTEX
 echo "]                            " >> $TMPTEX
 echo "{                            " >> $TMPTEX

 echo $NEWPDF                         >> $TMPTEX

 echo "}                            " >> $TMPTEX
 echo "\end{document}               " >> $TMPTEX

# ======================================================= #
# ------------------------------------------------------- #
# RENDER LaTeX FILE
# ------------------------------------------------------- #

 pdflatex -output-directory $TMPDIR $TMPTEX

 pdftk i/non-free/pdf/liwoli2012-supporters.pdf \
       background $TMPDIR/${TMPTEX%%.*}.pdf \
       output $OUTPUTDIR/${NEWNAME}.pdf

 rm $TMPTEX

  done
 done

exit 0;