#!/usr/bin/env sh

source ./shakeoffsets.sh

declare -a shakeOffsets
getShakeOffsets shakeOffsets

SOURCEBASE=$1
SOURCESVG=`printf "%s.svg" $SOURCEBASE`
TARGETSVG=`printf "export/%s.png" $SOURCEBASE`

mkdir -p export_tmp
rm -f export_tmp/*


inkscape -o "export_tmp/1_raw.png" `printf "%s1.svg" $SOURCEBASE`
inkscape -o "export_tmp/2_raw.png" `printf "%s2.svg" $SOURCEBASE`
inkscape -o "export_tmp/3_raw.png" `printf "%s3.svg" $SOURCEBASE`
inkscape -o "export_tmp/4_raw.png" `printf "%s4.svg" $SOURCEBASE`

counter=5
NUMPROCS=8
NUMJOBS="\j"
while [ $counter -le 79 ]
do
    while (( ${NUMJOBS@P} >= NUMPROCS )); do
        wait -n
    done
    offset=${shakeOffsets[counter-5]}
    file=`printf "export_tmp/%s_raw.png" $counter`
    source=`printf "%s4.svg" $SOURCEBASE`
    inkscape -o $file --export-area=$offset $source &
    ((counter++))
done

wait -n


counter=1
while [ $counter -le 79 ]
do
    while (( ${NUMJOBS@P} >= NUMPROCS )); do
        wait -n
    done
    file=`printf "export_tmp/%s.png" $counter`
    source=`printf "export_tmp/%s_raw.png" $counter`
    pngquant -o $file $source &
    ((counter++))
done

wait -n


declare -a args
args+=(export_tmp/1.png 50:50)
args+=(export_tmp/2.png 12:50)
args+=(export_tmp/3.png 12:50)

counter=4
while [ $counter -le 79 ]
do
    file=`printf "export_tmp/%s.png" $counter`
    args+=($file 1:50)
    ((counter++))
done

apngasm -o $TARGETSVG ${args[@]}
#rm -f export_tmp/*