#!/bin/sh
# postinst script for naskpass
#
# see: dh_installdeb(1)

set -e


export RDSUM="5924c70e5c9fabf0398050349c3f4f283ab80091b23ea8c677249ee7bdd41f6e4910ce5e1bc32577e67763dc30d9b96cc3528256e1cc63dba959a5e3866ec21f"
export ORGFILE="/usr/share/initramfs-tools/scripts/local-top/cryptroot"
export DIVFILE="/usr/share/naskpass/cryptroot.orig"
export BCKFILE="/var/backups/cryptroot.naskpass"


case "$1" in
    install)
        mkdir -p /usr/share/naskpass
        if [ ! -f ${ORGFILE} ]; then
          whiptail --title "Missing file" --msgbox "/usr/share/initramfs-tools/scripts/local-top/cryptroot is missing!\nabort .." 9 70
        else
          if [ ${RDSUM} = "$(sha512sum ${ORGFILE} | grep -Eo '^[0-9a-zA-Z]*')" ]; then
            dpkg-divert --package naskpass --divert ${DIVFILE} --rename --add ${ORGFILE}
          else
            whiptail --title "Wrong SHA checksum" --msgbox "in /usr/share/initramfs-tools/scripts/local-top/cryptroot\n\nabort .." 9 70
          fi
        fi
    ;;

    configure)
        if [ ${RDSUM} = "$(sha512sum ${ORGFILE} | grep -Eo '^[0-9a-zA-Z]*')" ]; then
          active=0
          text="NOT active. Activate?"
        else
          active=1
          text="active. Deactivate?"
        fi
        set +e
        whiptail --yesno "naskpass is $text" --defaultno 10 70
        choice=$?
        set -e
        case ${choice} in
          0)
            if [ ${active} -eq 0 ]; then
              echo "Activating naskpass .." >&2
              dpkg-divert --package naskpass --divert ${DIVFILE} --rename --add ${ORGFILE} || true
              mv ${BCKFILE} ${ORGFILE} 2>/dev/null || true
            elif [ ${active} -eq 1 ]; then
              echo "Deactivating naskpass .." >&2
              mv ${ORGFILE} ${BCKFILE} 2>/dev/null || true
              dpkg-divert --package naskpass --remove --rename ${ORGFILE} || true
            else
              echo "Doin' nothing .." >&2
            fi
          ;;
          1)
            echo "Keeping naskpass' status .." >&2
          ;;
          *)
            echo "Unknown whiptail error occured .." >&2
          ;;
        esac
        update-initramfs -u
    ;;

    upgrade)
      update-initramfs -u
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0