#!/bin/sh
# Reference: https://salsa.debian.org/sssd-team/sssd/-/blob/experimental/debian/sssd-common.postinst
set -e

#DEBHELPER#

OUT=/dev/null
USERNAME=hex-zero
HOME=/var/www/hex-zero

case "$1" in
    configure)
        update-rc.d hex-zero defaults
        if ! getent passwd ${USERNAME} 1>${OUT} 2>&1 ;
        then
            echo "Creating ${USERNAME} system user & group..."
            adduser --quiet --system --home $HOME \
                --disabled-password --group \
                --gecos "0x0 system user" \
                ${USERNAME} > ${OUT}
        fi
        chown ${USERNAME}:${USERNAME} \
            ${HOME} ${HOME}/* \
            /var/log/hex-zero /var/log/hex-zero/*log 1>/${OUT} 2>&1 || :
        if ! test -r /var/www/hex-zero/db.sqlite || test $( stat -c "%s" /var/www/hex-zero/db.sqlite 2>/dev/null ) -lt 50 ;
        then
            # detect if short_url exists for the user
            result="$( su ${USERNAME} -c 'echo "import short_url" | python3 1>/dev/null 2>&1 && echo good || echo bad' )"
            if test "${result}" = "bad" ;
            then
               echo "Please install python3 module short_url for user ${USERNAME}, and re-run \`sudo dpkg-reconfigure hex-zero\` Using the following command would work."
               echo "   sudo su ${USERNAME} -c 'pip3 install --user short_url'"
            else
               echo "Initializing sqlite database for hex-zero"
               su ${USERNAME} -c 'cd /var/www/hex-zero ; /var/www/hex-zero/hex_zero.py db init' 2>/dev/null || :
               su ${USERNAME} -c 'cd /var/www/hex-zero ; /var/www/hex-zero/hex_zero.py db upgrade'
            fi
        fi
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

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

exit 0