#!/bin/sh
# preinst script for ledgersmb
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <new-preinst> `install'
#        * <new-preinst> `install' <old-version>
#        * <new-preinst> `upgrade' <old-version>
#        * <old-preinst> `abort-upgrade' <new-version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package

#  Set old_version variable for use later in the script.
old_version=$2

#   If upgrading from a pre 1.5.x version of the ledgersmb package,
# then it would have been using the old apache configuration and that
# needs to be removed.
remove_old_config() {
    # If /etc/ledgersmb/ledgersmb-httpd-2.4.conf exists, remove it.
    if [ -h "/etc/ledgersmb/ledgersmb-httpd-2.4.conf" ]; then
        rm -f /etc/ledgersmb/ledgersmb-httpd-2.4.conf
    fi
    # If /etc/apache2/conf-available/ledgersmb.conf exists, remove it.
    if [ -f "/etc/apache2/conf-available/ledgersmb.conf" ]; then
        rm -f /etc/apache2/conf-available/ledgersmb.conf
    fi
    # If /etc/apache2/conf-available/ledgersmb.conf exists, remove
    # it and deregister it with ucf.
    if [ -f "/etc/apache2/conf-available/ledgersmb.conf" ]; then
    # Remove the possible backup extensions of the configuration file.
      for ext in '~' '%' .bak .ucf-new .ucf-old .ucf-dist;  do
        rm -f /etc/apache2/conf-available/ledgersmb.conf$ext
      done
    fi
    # Remove the configuration file itself
    rm -f /etc/apache2/conf-available/ledgersmb.conf
    # Clear it out from the ucf database.
    if which ucf >/dev/null 2>&1; then
        ucf --purge /etc/apache2/conf-available/ledgersmb.conf
    fi
    if which ucfr >/dev/null 2>&1; then
        ucfr --purge ledgersmb /etc/apache2/conf-available/ledgersmb.conf
    fi
}

case "$1" in
    install)
        #  If this is an upgrade from a previous version of the package...
        if [ ! -z "$old_version" ]; then
            #  If the old installed package version is pre v1.5.x, then remove
            # the old configuration being used with Apache
            if dpkg --compare-versions $old_version lt 1.5.0-1; then
              remove_old_config
            fi
        fi
        # Configure the 'ledgersmb' system user.
        getent passwd ledgersmb >/dev/null 2>&1 || adduser --system --group --quiet --disabled-password --home /var/run/ledgersmb --gecos "LedgerSMB" ledgersmb
     ;;

    abort-upgrade|upgrade)
    ;;

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

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

# Automatically added by dh_installinit/13.10
if [ "$1" = "install" ] && [ -n "$2" ] && [ -e "/etc/init.d/ledgersmb" ] ; then
	chmod +x "/etc/init.d/ledgersmb" >/dev/null || true
fi
# End automatically added section


exit 0