#!/usr/bin/env bash
#
# Copyright (C) 2007-2012 Hypertable, Inc.
#
# This file is part of Hypertable.
#
# Hypertable 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 any later version.
#
# Hypertable 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 Hypertable. If not, see <http://www.gnu.org/licenses/>
#
export HYPERTABLE_HOME=$(cd `dirname "$0"`/.. && pwd)
. $HYPERTABLE_HOME/bin/ht-env.sh

print_help() {
  echo "Usage: $0 [Command] [Options]"
  echo "Commands:"
  echo "  start <Service> [ServiceOptions]    See start <service> --help for"
  echo "                                      for service options"
  echo "      valid <Service>: all-servers, fsbroker, hyperspace, master"
  echo "                       rangeserver, thriftbroker, test-servers"
  echo "  restart <Service> [ServiceOptions]  Restart <Service>"
  echo "      valid <Service>: fsbroker, hyperspace, master, rangeserver, "
  echo "                       thriftbroker"
  echo "  stop <Service>                      Stop any running <Service>"
  echo "      valid <Service>: fsbroker, hyperspace, master, rangeserver, "
  echo "                       thriftbroker, servers"
  echo "  clean-databases                     Remove all existing databases"
  echo "  ldd <executable>                    Print dynamic linking info"
  echo "  shell [ShellOptions]                See shell --help for options"
  echo "  version                             Show version info"
  echo "  help                                Show this help"
}

do_start() {
  service=$1; shift
  exec $HYPERTABLE_HOME/bin/start-$service.sh "$@"
}

do_stop() {
  service=$1; shift
  if [ -x $HYPERTABLE_HOME/bin/stop-$service.sh ]; then
    exec $HYPERTABLE_HOME/bin/stop-$service.sh "$@"
  fi
  pidfile=`server_pidfile $service`
  stop_server $service &&
  sleep 1 &&
  wait_for_server_shutdown $service `basename $pidfile .pid` "$@"
}

do_restart() {
  service=$1
  if [ -x $HYPERTABLE_HOME/bin/restart-$service.sh ]; then
    shift;
    exec $HYPERTABLE_HOME/bin/restart-$service.sh "$@"
  fi
  do_stop "$@"
  do_start "$@"
}

do_cmd() {
  cmd=$1; shift
  [ "$cmd" ] || { print_help; exit; }
  if [ -x $HYPERTABLE_HOME/bin/$cmd ]; then
    exec $HYPERTABLE_HOME/bin/$cmd "$@"
  elif [ -x $HYPERTABLE_HOME/bin/$cmd.sh ]; then
    exec $HYPERTABLE_HOME/bin/$cmd.sh "$@"
  elif [ -x $HYPERTABLE_HOME/bin/ht_$cmd ]; then
    exec $HYPERTABLE_HOME/bin/ht_$cmd "$@"
  fi
  exec $cmd "$@";
}

print_version() {
  $HYPERTABLE_HOME/bin/hypertable --version
  HADOOP_VERSION="unknown"
  if [ -f $HYPERTABLE_HOME/lib/java/hadoop-core-* ] ; then
    HADOOP_VERSION=`basename $HYPERTABLE_HOME/lib/java/hadoop-core-*.jar .jar |
                    sed 's/hadoop-[a-z-]*\(.*\)-.*/\1/'`
  elif [ -f $HYPERTABLE_HOME/lib/java/hadoop-hdfs-* ] ; then
    HADOOP_VERSION=`basename $HYPERTABLE_HOME/lib/java/hadoop-hdfs-*.jar .jar |
                    sed 's/hadoop-[a-z-]*\(.*\)-.*/\1/'`
  fi
  echo "  Hadoop: $HADOOP_VERSION"
  if [ -x $HYPERTABLE_HOME/bin/cephBroker ]; then
    echo " " `$HYPERTABLE_HOME/bin/cephBroker --ceph-version`
  fi
  echo "  BerkeleyDB:" @BDB_VERSION@
  echo "  Boost:" @BOOST_VERSION@
  echo "  Thrift:" @Thrift_VERSION@
  [ "@Tcmalloc_LIBRARIES@" ] && echo "  Tcmalloc: @TC_VERSION@"
  [ "@JAVAC_VERSION@" ] && echo "  Javac: @JAVAC_VERSION@"
  [ "@GCC_VERSION@" ] && echo "  GCC/G++: @GCC_VERSION@"
}

cmd=$1
shift

case $cmd in
  start)        do_start "$@";;
  stop)         do_stop "$@";;
  restart)      do_restart "$@";;
  shell)        exec $HYPERTABLE_HOME/bin/hypertable "$@";;
  version|-v|--version) print_version;;
  help|-h|--help) print_help;;
  /*)           exec $cmd "$@";;
  *)            do_cmd "$cmd" "$@";;
esac