#!/bin/sh
#
# koha-email-disable - turn off the email for Koha instances
# Copyright 2010  Catalyst IT, Ltd
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

set -e

die()
{
    echo "$@" 1>&2
    exit 1
}

warn()
{
    echo "$@" 1>&2
}

is_instance()
{
    local instancename=$1

    if find /etc/koha/sites -mindepth 1 -maxdepth 1 \
                         -type d -printf '%f\n'\
          | grep -q -x $instancename ; then
        return 0
    else
        return 1
    fi
}

is_email_enabled()
{
    local instancename=$1

    if [ -e /var/lib/koha/$instancename/email.enabled ]; then
        return 0
    else
        return 1
    fi
}

disable_email()
{
    local instancename=$1
    local libdir="/var/lib/koha"

    rm -f $libdir/$instancename/email.enabled

    echo "Disabled email for instance $instancename."
}

usage()
{
    local scriptname=$0
    cat <<EOF
Disables the email for Koha instances.

Usage: $scriptname instancename1 instancename2...

EOF
}

# Parse command line.
[ $# -ge 1 ] || ( usage ; die "Missing instance name..." )

for name in "$@"
do
    if  is_instance $name; then
        if is_email_enabled $name; then
            disable_email $name
        else
            warn "Email already disabled for instance $name."
        fi
    else
        warn "Unknown instance $name."
    fi
done

exit 0