skyview/debian/DEBIAN/prerm

#!/bin/bash
set -e

case "$1" in
    remove|deconfigure)
        # Stop and disable the service on removal
        if systemctl is-active --quiet skyview-adsb.service; then
            systemctl stop skyview-adsb.service
        fi
        
        if systemctl is-enabled --quiet skyview-adsb.service; then
            systemctl disable skyview-adsb.service
        fi
        ;;
    upgrade)
        # Only stop service during upgrade, preserve enabled state
        if systemctl is-active --quiet skyview-adsb.service; then
            systemctl stop skyview-adsb.service
        fi
        # Don't disable - postinst will restart if service was enabled
        ;;
esac

exit 0