#!/bin/sh -e
# TASK
#   Insert date, make the selected gametype symbol visible,
#   then render and optimize png files of the three medals.
#
# DEPENDENCIES
#   convert
#   pngquant (Reduces colors to 8bit)
#   optipng  (Removes unnecessary data)
#   advpng   (Compresses with zopfli algorithm)
#
# USAGE
#   $0 SIZE(Power of two, optimal=64)
#      GAMETYPE(ca|ctf|cts|dm|dom|duel|ft|insta|ka|kh|lms|nb|ons|tdm|xonotic) \
#      MONTH(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC) \
#      YEAR(YY)


size="$1"
type="$2"
month="$3"
year="$4"


mkdir -p "png"


for num in "1" "2" "3"; do
	svg="medal$num.svg"
	png="png/$size-$type-$year-${month,,}-$num.png"

	# Render
	sed -e "s|width=\"64\" height=\"64|width=\"$size\" height=\"$size|" \
		-e "s|id=\"$type\" opacity=\"0|id=\"$type\" opacity=\"1|" \
		-e "s|MMM|$month|" \
		-e "s|YY|$year|" "$svg" |\
		convert -background none - "$png"

	# Optimize
	pngquant --nofs --speed 1 --quality 70-75 --skip-if-larger --force --output "$png" "$png"
	optipng -o 5 -strip all "$png"
	advpng --recompress --shrink-insane -i 1000 "$png"
done