post_install() {
	for line in 'QT_QPA_PLATFORMTHEME' 'QT_QUICK_CONTROLS_STYLE'; do
		grep -q "^\s*$line=\"gtk2\"" /etc/environment || continue
		if grep -q "^\s*$line=" /etc/environment; then
			sed -i "s/^\s*$line=.*$/$line=\"gtk2\"" /etc/environment
		else
			echo "$line=\"gtk2\"" >> /etc/environment
		fi
	done

	find /usr/lib/systemd/user/ -name "fix-*.service" -type f -printf "%f\0" | xargs -0 systemctl --global enable
	echo "Warning: A restart is required to take effect"
}

post_upgrade() {
	for line in 'QT_QPA_PLATFORMTHEME' 'QT_QUICK_CONTROLS_STYLE'; do
		grep -q "^\s*$line=\"gtk2\"" /etc/environment || continue
		if grep -q "^\s*$line=" /etc/environment; then
			sed -i "s/^\s*$line=.*$/$line=\"gtk2\"" /etc/environment
		else
			echo "$line=\"gtk2\"" >> /etc/environment
		fi
	done

	find /usr/lib/systemd/user/ -name "fix-*.service" -type f -printf "%f\0" | xargs -0 systemctl --global enable
	echo "Warning: A restart is required to take effect"
}

pre_remove() {
	for line in 'QT_QPA_PLATFORMTHEME' 'QT_QUICK_CONTROLS_STYLE'; do
		sed -i "/^\s*$line=/d" /etc/environment
	done

	find /usr/lib/systemd/user/ -name "fix-*.service" -type f -printf "%f\0" | xargs -0 systemctl --global disable
	echo "Warning: A restart is required to take effect"
}