LENGTH=128
MARGIN=1
WIDTH=126
HEIGHT=84 # flags
#ROUND=10

TEMP=`mktemp -d -p ""`

# pride flags
for svg_path in pride/svg/*.svg; do
    svg=${svg_path#"pride/svg/"}
    # resize
    convert ${svg_path} \
	    -resize ${WIDTH}x${HEIGHT} \
	    $TEMP/resized-${svg%.svg}.png
    # round borders
    magick $TEMP/resized-${svg%.svg}.png \
     \( +clone  -alpha extract \
        -draw 'fill black polygon 0,0 0,10 10,0 fill white circle 10,10 10,0' \
        \( +clone -flip \) -compose Multiply -composite \
        \( +clone -flop \) -compose Multiply -composite \
     \) -alpha off -compose CopyOpacity -composite $TEMP/rounded-${svg%.svg}.png
    # add margin
    convert $TEMP/rounded-${svg%.svg}.png \
	    -bordercolor transparent \
	    -border ${MARGIN} \
	    $TEMP/margin-${svg%.svg}.png
    # make square
    convert -background transparent \
	    -gravity center \
	    $TEMP/margin-${svg%.svg}.png \
	    -extent ${LENGTH}x${LENGTH} \
	    ./pride/png/${svg%.svg}.png
   echo ${svg%.svg} created
done

# branding
for svg_path in branding/svg/*.svg; do
    svg=${svg_path#"branding/svg/"}
    # resize
    convert ${svg_path} \
        -resize ${WIDTH}x${WIDTH} \
        $TEMP/resized-${svg%.svg}.png
    if [[ $svg == "treehouse-icon-wordmark.svg" ]] \
	    || [[ $svg == "treehouse-logo-full.svg" ]]; then
        # round borders
        magick $TEMP/resized-${svg%.svg}.png \
         \( +clone  -alpha extract \
            -draw \
	      'fill black polygon 0,0 0,10 10,0 fill white circle 10,10 10,0' \
            \( +clone -flip \) -compose Multiply -composite \
            \( +clone -flop \) -compose Multiply -composite \
         \) -alpha off -compose CopyOpacity -composite \
	 $TEMP/rounded-${svg%.svg}.png
    else
        # already rounded
        cp $TEMP/resized-${svg%.svg}.png $TEMP/rounded-${svg%.svg}.png
    fi
    # add margin
    convert $TEMP/rounded-${svg%.svg}.png \
	    -bordercolor transparent \
	    -border ${MARGIN} \
	    $TEMP/margin-${svg%.svg}.png
    # make square
    convert -background transparent \
	    -gravity center \
	    $TEMP/margin-${svg%.svg}.png \
	    -extent ${LENGTH}x${LENGTH} \
	    ./branding/png/${svg%.svg}.png
   echo ${svg%.svg} created
done

rm -rf $TEMP

# fix and remove metadata
exiftool -all= -overwrite_original ./pride/png/*
exiftool -all= -overwrite_original ./branding/png/*