#!/bin/sh

if [ "$1" = "-h" ]; then
	printf "usage: %s [RESIZE_PERC]\n" "$(basename "$0")"
	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 "$ws" | jq -r '.rect.height')
ws_x=$(echo "$ws" | jq -r '.rect.x')
ws_y=$(echo "$ws" | jq -r '.rect.y')

center_x=$(awk "BEGIN{print int($ws_width - $ws_x)/2}")
center_y=$(awk "BEGIN{print int($ws_height - $ws_y)/2}")

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

echo "center: $center_x x $center_y"
echo "con: $con_width x $con_height"

tar_x=$(awk "BEGIN{print int($center_x - ($con_width / 2))}")
tar_y=$(awk "BEGIN{print int($center_y - ($con_height / 2))}")

echo "moveto: $tar_x x $tar_y"
swaymsg move position "$tar_x" "$tar_y"