#!/bin/bash
. setenv.sh

if [ -z "$PICCREATE" ]; then
    echo "please source the environment"
    exit 1
fi

O_ARGS=0
E_OPTERROR=85

USAGE="create a jpg file with the purl inside
Usage: `basename $0` [-hie]
    -i      id
    -e      extract
 Examples:
    to test the glyph later with inkscape:
    `basename $0` -i ../in/buchstabe_a.svg 
    to extract the points and text from the glyph:
    `basename $0` -i ../in/buchstabe_a.svg -e "


while getopts "i:eu:" Option
do
  case $Option in
    i) ID=$OPTARG;;
    e) EXTRACT=1;;
    *) echo "$USAGE" >&2; exit 1;   # Default.
  esac
done

shift $(($OPTIND - 1))

if [ -z $ID ] ; then
    echo "-> no id/filename given"
    echo "$USAGE" >&2
    exit 1
fi

if [ -z "$ID" ]; then
    echo "please give a .svg file of a glyph as input"
    echo "$USAGE" >&2
    exit 1
fi
if [ -s "$ID" ]; then
    export BASE=`basename $ID .svg`
    export GLYPH=$PICCREATE_OUT/$BASE.svg
    export CONFIG=$PICCREATE_OUT/$BASE.cfg
else
    echo "input file does not exist"
    echo "$USAGE" >&2
    exit 1
fi

# extrahiere die wichtigen Zeilen aus dem Font
cat $ID | egrep  '<\<line\>|x1|x2|y1|y2|/>|style' | egrep -v '\<text\>|id=|http:'   > line-$BASE.svg
cat $ID | egrep  'circle|translate|\<r\>'                                           > circles-$BASE.svg
cat $ID | egrep  '<\<text|text\>>|\<x\>=|\<y\>=|tspan|style|preserve' | egrep -v '\<transform-center-x\>|\<window-|\<id\>=' > text-$BASE.svg

# reduziere einige Zeilen um bestimmte Muster
cat line-$BASE.svg    | sed -e 's/inkscape:transform-center-x=".*"//g' > $$; mv $$ line-$BASE.svg
cat line-$BASE.svg    | sed -e 's/inkscape:transform-center-y=".*"//g' > $$; mv $$ line-$BASE.svg
cat text-$BASE.svg    | sed -e 's/inkscape:transform-center-x=".*"//g' > $$; mv $$ text-$BASE.svg
cat text-$BASE.svg    | sed -e 's/inkscape:transform-center-y=".*"//g' > $$; mv $$ text-$BASE.svg
cat circles-$BASE.svg | sed -e 's/inkscape:transform-center-x=".*"//g' > $$; mv $$ circles-$BASE.svg
cat circles-$BASE.svg | sed -e 's/inkscape:transform-center-y=".*"//g' > $$; mv $$ circles-$BASE.svg


# den eventuell alten Buchstaben vorher wegschmeissen
rm -f $GLYPH
if [ -z "$EXTRACT" ];
then
    # schreib einen kompletten neuen Buchstaben zum testen
    echo '<svg xmlns="http://www.w3.org/2000/svg" version="1.1">' >> $GLYPH
    cat text-$BASE.svg      >> $GLYPH
    cat circles-$BASE.svg   >> $GLYPH
    cat line-$BASE.svg      >> $GLYPH
    echo '</svg>'           >> $GLYPH
else
    # schreib nur das extract zur Verwertung als Font in die Ausgabe
    #echo '<g transform="translate(${posx},${posy})">' >> $GLYPH
    echo '<g transform="translate(${posx},${posy})">'  >> $GLYPH
    cat text-$BASE.svg      >> $GLYPH
    cat circles-$BASE.svg   >> $GLYPH
    cat line-$BASE.svg      >> $GLYPH
    echo '</g>'           >> $GLYPH
fi
rm  line-$BASE.svg
rm  circles-$BASE.svg
rm  text-$BASE.svg

## alle Zusatzinfos zum Buchstaben rausholen
XCOORDS=./xcoords
# hole das Minium und Maxium der X-Koordinaten um die Schrittweite des Buchstabens zu bestimmen
# zuerst aus den Texten
cat  $GLYPH | egrep "\<x\>=" | sed "s/^\s\+//g;s/x=//g;s/\"//g" > $XCOORDS
# dann aus Kreisen
cat  $GLYPH | egrep -v '<g' | egrep "transform=" | sed 's/^\s\+//g;s/translate//g;s/transform=//g;s/["|(|)]//g;s/,.*//g' >> $XCOORDS
# dann aus den Linien
cat  $GLYPH | grep x1= | sed "s/^\s\+//g;s/x1=//g;s/\"//g" >> $XCOORDS
cat  $GLYPH | grep x2= | sed "s/^\s\+//g;s/x2=//g;s/\"//g" >> $XCOORDS

# sortiere die Koordinaten numerisch
cat $XCOORDS | sort -g | uniq > $$ ; mv $$ $XCOORDS;
XMAX=`tail -n 1 $XCOORDS`
XMIN=`head -n 1 $XCOORDS`
rm $XCOORDS

YCOORDS=./ycoords
# hole das Minium und Maxium der Y-Koordinaten um die Schrittweite des Buchstabens zu bestimmen
# zuerst aus den Texten
cat  $GLYPH | grep y= | sed "s/^\s\+//g;s/y=//g;s/\"//g" > $YCOORDS
# dann aus Kreisen
cat  $GLYPH | egrep -v '<g' | egrep "transform=" | sed 's/^\s\+//g;s/translate//g;s/transform=//g;s/["|(|)]//g;s/.*,//g' >> $YCOORDS
# dann aus den Linien
cat  $GLYPH | grep y1= | sed "s/^\s\+//g;s/y1=//g;s/\"//g" >> $YCOORDS
cat  $GLYPH | grep y2= | sed "s/^\s\+//g;s/y2=//g;s/\"//g" >> $YCOORDS

# sortiere die Koordinaten numerisch
cat $YCOORDS | sort -g | uniq > $$ ; mv $$ $YCOORDS;
YMAX=`tail -n 1 $YCOORDS`
YMIN=`head -n 1 $YCOORDS`
rm $YCOORDS

XSTEP=`echo "$XMAX-$XMIN" | bc`
YSTEP=`echo "$YMAX-$YMIN" | bc`

# hole raus wieviele x1-n Muster zu ersetzen sind
NPATTERN=`cat  $GLYPH | egrep ">x[0-9]+<" | sed "s/.*\(x[0-9]\+\).*/\1/g" | wc -l`
# ersetze die Muster von x1-xn durch Templatezeichen
cat  $GLYPH | sed "s/>\(x[0-9]\+\)</>\${\1}</g" > $$ ; mv $$ $GLYPH;

## und in die Buchstabenconfig schreiben
rm -f $CONFIG
echo [$BASE] >> $CONFIG
echo "XSTEP=$XSTEP" >> $CONFIG
echo "XMIN=$XMIN"   >> $CONFIG
echo "XMAX=$XMAX"   >> $CONFIG
echo "YSTEP=$YSTEP" >> $CONFIG
echo "YMIN=$YMIN"   >> $CONFIG
echo "YMAX=$YMAX"   >> $CONFIG
echo "NPATTERN=$NPATTERN"   >> $CONFIG
echo "FILENAME=$BASE.svg"   >> $CONFIG
echo "#" >> $CONFIG