#!/bin/sh
#
# koha-start-zebra - Start Zebra for named 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

# include helper functions
if [ -f "/usr/share/koha/bin/koha-functions.sh" ]; then
    . "/usr/share/koha/bin/koha-functions.sh"
else
    echo "Error: /usr/share/koha/bin/koha-functions.sh not present." 1>&2
    exit 1
fi

start_zebra_instance()
{
    local instancename=$1

    # get zebra log levels from koha-conf.xml
    local loglevels=$(get_loglevels $instancename)

    echo "Starting Zebra server for $instancename"
    touch "/var/log/koha/$instancename/zebra-error.log" \
        "/var/log/koha/$instancename/zebra-output.log"
    chown "$instancename-koha:$instancename-koha" \
        "/var/log/koha/$instancename/zebra-error.log" \
        "/var/log/koha/$instancename/zebra-output.log"
    daemon \
        --name="$instancename-koha-zebra" \
        --pidfiles="/var/run/koha/$instancename/" \
        --errlog="/var/log/koha/$instancename/zebra-error.log" \
        --output="/var/log/koha/$instancename/zebra-output.log" \
        --verbose=1 \
        --respawn \
        --delay=30 \
        --user="$instancename-koha.$instancename-koha" \
        -- \
        zebrasrv \
        -v $loglevels \
        -f "/etc/koha/sites/$instancename/koha-conf.xml" && \
        return 0 || \
        return 1
}

usage()
{
    local scriptname=$0
    cat <<EOF
Starts Zebra for Koha instances.

Usage: $scriptname instancename1 instancename2...

EOF
}

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

# Loop through the instance names
for name in "$@"
do
    if is_instance $name ; then
        if ! is_zebra_running $name; then
            if ! start_zebra_instance $name; then
                warn "Something went wrong starting Zebra for $name."
            fi
        else
            warn "Zebra already running for instance $name."
        fi
    else
        warn "Unknown instance $name."
    fi
done

exit 0