darkmode

#!/usr/bin/env bash
# darkmode -- Toggle between light/dark mode in GNOME

setbacklight() {
	local light_mode=$1

	case $HOSTNAME in
		midnight)
			local hi=3043 lo=743 dev=intel_backlight;;
		*)
			return;;
	esac

	local path=/sys/class/backlight/${dev?}/brightness
	local current=$(< $path)
	if (( light_mode && current < hi )); then
		sudo sh -c "echo $hi > $path"
	elif (( !light_mode && current > lo )); then
		sudo sh -c "echo $lo > $path"
	fi
}

schema=org.gnome.desktop.interface
key=color-scheme
value="'prefer-dark'"

case $(gsettings get $schema $key) in
	"$value")
		setbacklight 1 &
		gsettings reset $schema $key
		text=disabled;;
	*)
		setbacklight 0 &
		gsettings set $schema $key "$value"
		text=enabled;;
esac

if [ -t 1 ]; then
	echo "Dark Mode has been $text."
else
	notifysend -r hotkey -e -i "dark-mode-symbolic" \
		"Dark Mode" "Dark Mode has been $text."
fi