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#!/bin/sh

if [ "$1" = "-h" ]; then
	printf "usage: %s [RESIZE_PERC] [MODE]\n" "$(basename "$0")"
	printf "\n"
	printf "MODE can be tr (for top-right) or empty (for center)\n"
	exit 2
fi

con=$(swq current con)
if [ "$(echo "$con" | jq -r '.type')" = "con" ]; then
	printf "not a floating container\n"
	exit 1
fi

ws=$(swq current workspace)
ws_width=$(echo "$ws" | jq -r '.rect.width')
ws_height=$(echo "$ws" | jq -r '.rect.height')

if [ -n "$1" ]; then
	perc="$1"
	con_width=$(awk "BEGIN{print int($ws_width * $perc)}")
	con_height=$(awk "BEGIN{print int($ws_height * $perc)}")
else
	con_width=$(echo "$con" | jq -r '.window_rect.width')
	con_height=$(echo "$con" | jq -r '.window_rect.height')
fi

if [ -n "$2" ]; then
	case "$2" in
	tl)     # top-left
		tar_x=0
		tar_y=0
		;;
	tr)     # top-right
		tar_x=$(awk "BEGIN{print int($ws_width - $con_width)}")
		tar_y=0
		;;
	bl)     # bottom-left
		tar_x=0
		tar_y=$(awk "BEGIN{print int($ws_height - $con_height)}")
		;;
	br)     # bottom-right
		tar_x=$(awk "BEGIN{print int($ws_width - $con_width)}")
		tar_y=$(awk "BEGIN{print int($ws_height - $con_height)}")
		;;
	esac
else 		# center
	center_x=$(awk "BEGIN{print int($ws_width/2)}")
	center_y=$(awk "BEGIN{print int($ws_height/2)}")
	echo "center: $center_x x $center_y"
	tar_x=$(awk "BEGIN{print int($center_x - ($con_width / 2))}")
	tar_y=$(awk "BEGIN{print int($center_y - ($con_height / 2))}")
fi

echo "ws: $ws_width x $ws_height"
echo "con: $con_width x $con_height"
echo "moveto: $tar_x x $tar_y"

swaymsg resize set "$con_width" "$con_height"
swaymsg move position "$tar_x" "$tar_y"