#!/bin/bash
set -e

_revert_patches() {
    if [ -x /usr/lib/pve-mod/revert-patches.sh ]; then
        /usr/lib/pve-mod/revert-patches.sh 2>&1 || true
    fi
}

case "$1" in
    remove|deconfigure)
        # 1. Revert patches before files are removed.
        _revert_patches

        # 2. Ask whether to keep the config (only in interactive sessions).
        if [ -t 0 ] && [ -f /etc/pve-mod/pve-mod.conf ]; then
            printf '\npve-mod: Keep /etc/pve-mod/pve-mod.conf for re-use after reinstall? [Y/n] '
            read -r _keep
            case "$_keep" in
                [nN]*) rm -f /etc/pve-mod/pve-mod.conf
                       echo "pve-mod: Configuration removed." ;;
                *)     echo "pve-mod: Configuration kept at /etc/pve-mod/pve-mod.conf" ;;
            esac
        fi
        ;;

    upgrade)
        # On upgrade, leave patches in place; postinst will re-apply them.
        ;;
esac

#DEBHELPER#
exit 0