#!/bin/bash
#
# Copyright 2012-2016 Red Hat, Inc.
#
# This file is part of Thermostat.
#
# Thermostat 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 2, or (at your
# option) any later version.
#
# Thermostat 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 Thermostat; see the file COPYING.  If not see
# <http://www.gnu.org/licenses/>.
#
# Linking this code with other modules is making a combined work
# based on this code.  Thus, the terms and conditions of the GNU
# General Public License cover the whole combination.
#
# As a special exception, the copyright holders of this code give
# you permission to link this code with independent modules to
# produce an executable, regardless of the license terms of these
# independent modules, and to copy and distribute the resulting
# executable under terms of your choice, provided that you also
# meet, for each linked independent module, the terms and conditions
# of the license of that module.  An independent module is a module
# which is not derived from or based on this code.  If you modify
# this code, you may extend this exception to your version of the
# library, but you are not obligated to do so.  If you do not wish
# to do so, delete this exception statement from your version.
#
#####################################################################

# Source thermostat-common from same directory as this script
CWD="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
. "$CWD"/thermostat-common

# NOTE: The following variables come from the system/user
#       profiles (if any)
#
# THERMOSTAT_EXT_BOOT_CLASSPATH
# THERMOSTAT_EXT_JAVA_OPTS
# THERMOSTAT_EXT_OPTS

# Need tools from the JVM
TOOLS_JAR="${JAVA_HOME}/lib/tools.jar"

# JARs necessary for the server
BOOT_CLASSPATH="${THERMOSTAT_LIBS}/thermostat-common-core-@project.version@.jar"
BOOT_CLASSPATH="${BOOT_CLASSPATH}:${THERMOSTAT_LIBS}/thermostat-shared-config-@project.version@.jar"
BOOT_CLASSPATH="${BOOT_CLASSPATH}:${THERMOSTAT_LIBS}/thermostat-agent-command-@project.version@.jar"
BOOT_CLASSPATH="${BOOT_CLASSPATH}:${THERMOSTAT_LIBS}/thermostat-common-command-@project.version@.jar"
BOOT_CLASSPATH="${BOOT_CLASSPATH}:${THERMOSTAT_LIBS}/thermostat-agent-command-server-@project.version@.jar"
BOOT_CLASSPATH="${BOOT_CLASSPATH}:${THERMOSTAT_LIBS}/netty-@netty.version@.jar"
BOOT_CLASSPATH="${TOOLS_JAR}:${BOOT_CLASSPATH}"

# Append extra class path entries coming from the profiles
if [ ! -z "${THERMOSTAT_EXT_BOOT_CLASSPATH}" ]; then
  BOOT_CLASSPATH="${BOOT_CLASSPATH}:${THERMOSTAT_EXT_BOOT_CLASSPATH}"
fi


# Duplicated in ThermostatVmMainLabelDecorator
CMD_CHANNEL_CLASS="com.redhat.thermostat.agent.command.server.internal.CommandChannelServerMain"

# Set this to remote debug
if [ x"$THERMOSTAT_CMDC_DEBUG" != x ] ; then
  DEBUG_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,server=y,quiet=y,address=1083"
fi

# TODO Maybe there is a more reliable way to do this
THIS_SCRIPT="$CWD/thermostat-command-channel"
SCRIPT_OWNER=$(stat -c '%U' "$THIS_SCRIPT")

# Start server
HOSTNAME=$1
PORT=$2
# Drop permissions, if root
if [ "$(id -u)" -eq 0 ]; then
  exec /bin/su -s /bin/bash -c "${JAVA} -cp ${BOOT_CLASSPATH} ${DEBUG_OPTS} ${CMD_CHANNEL_CLASS} $HOSTNAME $PORT" "$SCRIPT_OWNER" 
else
  exec ${JAVA} -cp ${BOOT_CLASSPATH} ${DEBUG_OPTS} ${CMD_CHANNEL_CLASS} $HOSTNAME $PORT
fi