#!/bin/bash

platform='unknown'
unamestr=`uname`
if [[ "$unamestr" == 'Linux' ]]; then
   platform='linux'
elif [[ "$unamestr" == 'Darwin' ]]; then
   platform='osx'
fi

if [[ $platform == 'linux' ]]; then
   fullpath=`readlink -f $0`

   if [[ -z ${JAVA_HOME} ]]; then
      # Find the actual location of the Java launcher:
      java_launcher=`which java`
      java_launcher=`readlink -f "${java_launcher}"`

      # Compute the Java home from the location of the Java launcher:
      export JAVA_HOME="${java_launcher%/bin/java}"
    fi
elif [[ $platform == 'osx' ]]; then
   TARGET_FILE=$0
   cd `dirname $TARGET_FILE`
   TARGET_FILE=`basename $TARGET_FILE`

   # Iterate down a (possible) chain of symlinks
   while [ -L "$TARGET_FILE" ]
   do
       TARGET_FILE=`readlink $TARGET_FILE`
       cd `dirname $TARGET_FILE`
       TARGET_FILE=`basename $TARGET_FILE`
   done

   # Compute the canonicalized name by finding the physical path
   # for the directory we're in and appending the target file.
   PHYS_DIR=`pwd -P`
   RESULT=$PHYS_DIR/$TARGET_FILE
   fullpath=$RESULT

   [[ -z ${JAVA_HOME} ]] && [[ -x "/usr/libexec/java_home" ]] && export JAVA_HOME=`/usr/libexec/java_home -v 1.7`;

fi

[[ -z ${JAVA_HOME} ]] && echo "Need to set JAVA_HOME environment variable" && exit -1;
[[ ! -x ${JAVA_HOME}/bin/java ]] && echo "Cannot find an executable \
JVM at path ${JAVA_HOME}/bin/java check your JAVA_HOME" && exit -1;

if [ -z ${ODL_BASEDIR} ]; then
    basedir=`dirname ${fullpath}`
else
    basedir=${ODL_BASEDIR}
fi

if [ -z ${ODL_DATADIR} ]; then
    datadir=`dirname ${fullpath}`
else
    datadir=${ODL_DATADIR}
fi

function usage {
    echo "Usage: $0 [-jmx] [-jmxport <num>] [-debug] [-debugsuspend] [-debugport <num>] [-start [<console port>]] [-stop] [-status] [-console] [-help] [<other args will automatically be used for the JVM>]"
    exit 1
}

if [ -z ${TMP} ]; then
    pidfile="/tmp/opendaylight.PID"
else
    pidfile="${TMP}/opendaylight.PID"
fi
debug=0
debugsuspend=0
debugport=8000
debugportread=""
startdaemon=0
daemonport=2400
daemonportread=""
jmxport=1088
jmxportread=""
startjmx=0
stopdaemon=0
statusdaemon=0
consolestart=1
dohelp=0
extraJVMOpts=""
unknown_option=0
while true ; do
    case "$1" in
        -debug) debug=1; shift ;;
        -jmx) startjmx=1; shift ;;
        -debugsuspend) debugsuspend=1; shift ;;
        -debugport) shift; debugportread="$1"; if [[ "${debugportread}" =~ ^[0-9]+$ ]] ; then debugport=${debugportread}; shift; else echo "-debugport expects a number but was not found"; exit -1; fi;;
        -jmxport) shift; jmxportread="$1"; if [[ "${jmxportread}" =~ ^[0-9]+$ ]] ; then jmxport=${jmxportread}; shift; else echo "-jmxport expects a number but was not found"; exit -1; fi;;
        -start) startdaemon=1; shift; daemonportread="$1"; if [[ "${daemonportread}" =~ ^[0-9]+$ ]] ; then daemonport=${daemonportread}; shift; fi;;
        -stop) stopdaemon=1; shift ;;
        -status) statusdaemon=1; shift ;;
        -console) shift ;;
        -help) dohelp=1; shift;;
        -D*) extraJVMOpts="${extraJVMOpts} $1"; shift;;
        -X*) extraJVMOpts="${extraJVMOpts} $1"; shift;;
        "") break ;;
        *) echo "Unknown option $1"; unknown_option=1; shift ;;
    esac
done

# Unknown Options and help
if [ "${unknown_option}" -eq 1 ]; then
    usage
fi

if [ "${dohelp}" -eq 1 ]; then
    usage
fi

# Validate debug port
if [[ "${debugport}" -lt 1024 ]] || [[ "${debugport}" -gt 65535 ]]; then
    echo "Debug Port not in the range [1024,65535] ${debugport}"
    exit -1
fi

# Validate daemon console port
if [[ "${daemonport}" -lt 1024 ]] || [[ "${daemonport}" -gt 65535 ]]; then
    echo "Daemon console Port not in the range [1024,65535] value is ${daemonport}"
    exit -1
fi

# Validate jmx port
if [[ "${jmxport}" -lt 1024 ]] || [[ "${jmxport}" -gt 65535 ]]; then
    echo "JMX Port not in the range [1024,65535] value is ${jmxport}"
    exit -1
fi

# Debug options
if [ "${debugsuspend}" -eq 1 ]; then
    extraJVMOpts="${extraJVMOpts} -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=${debugport}"
elif [ "${debug}" -eq 1 ]; then
    extraJVMOpts="${extraJVMOpts} -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=${debugport}"
fi

# Add JMX support
if [ "${startjmx}" -eq 1 ]; then
    extraJVMOpts="${extraJVMOpts} -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=${jmxport} -Dcom.sun.management.jmxremote"
fi

########################################
# Now add to classpath the OSGi JAR
########################################
CLASSPATH=${basedir}/lib/org.eclipse.osgi-3.8.1.v20120830-144521.jar
FWCLASSPATH=file:${basedir}/lib/org.eclipse.osgi-3.8.1.v20120830-144521.jar

########################################
# Now add the extensions
########################################

# Extension 1: this is used to be able to convert all the
# bundleresouce: URL in file: so packages that are not OSGi ready can
# still work. Notably this is the case for spring classes
CLASSPATH=${CLASSPATH}:${basedir}/lib/org.eclipse.virgo.kernel.equinox.extensions-3.6.0.RELEASE.jar
FWCLASSPATH=${FWCLASSPATH},file:${basedir}/lib/org.eclipse.virgo.kernel.equinox.extensions-3.6.0.RELEASE.jar

########################################
# Now add the launcher
########################################
CLASSPATH=${CLASSPATH}:${basedir}/lib/org.eclipse.equinox.launcher-1.3.0.v20120522-1813.jar
FWCLASSPATH=${FWCLASSPATH},file:${basedir}/lib/org.eclipse.equinox.launcher-1.3.0.v20120522-1813.jar

cd $basedir

if [ "${stopdaemon}" -eq 1 ]; then
    if [ -e "${pidfile}" ]; then
        daemonpid=`cat "${pidfile}"`
        kill "${daemonpid}"
        rm -f "${pidfile}"
        echo "Controller with PID: ${daemonpid} -- Stopped!"
        exit 0
    else
        echo "Doesn't seem any Controller daemon is currently running"
        exit -1
    fi
fi

if [ "${statusdaemon}" -eq 1 ]; then
    if [ -e "${pidfile}" ]; then
        daemonpid=`cat "${pidfile}"`
        ps -p ${daemonpid} > /dev/null
        daemonexists=$?
        if [ "${daemonexists}" -eq 0 ]; then
            echo "Controller with PID: ${daemonpid} -- Running!"
            exit 0
        else
            echo "Controller with PID: ${daemonpid} -- Doesn't seem to exist"
            rm -f "${pidfile}"
            exit 0
        fi
    else
        echo "Doesn't seem any Controller daemon is currently running, at least no PID file has been found"
        exit -1
    fi
fi

if [ "${startdaemon}" -eq 1 ]; then
    if [ -e "${pidfile}" ]; then
        echo "Another instance of controller running, check with $0 -status"
        exit -1
    fi
    $JAVA_HOME/bin/java ${extraJVMOpts} \
        -Djava.io.tmpdir=${datadir}/work/tmp \
        -Dosgi.install.area=${basedir} \
        -Dosgi.configuration.area=${datadir}/configuration \
        -Dosgi.frameworkClassPath=${FWCLASSPATH} \
        -Dosgi.framework=file:${basedir}/lib/org.eclipse.osgi-3.8.1.v20120830-144521.jar \
        -Djava.awt.headless=true \
        -classpath ${CLASSPATH} \
        org.eclipse.equinox.launcher.Main \
        -console ${daemonport} \
        -consoleLog &
    daemonpid=$!
    echo ${daemonpid} > ${pidfile}
elif [ "${consolestart}" -eq 1 ]; then
    if [ -e "${pidfile}" ]; then
        echo "Another instance of controller running, check with $0 -status"
        exit -1
    fi
    $JAVA_HOME/bin/java ${extraJVMOpts} \
        -Djava.io.tmpdir=${datadir}/work/tmp \
        -Dosgi.install.area=${basedir} \
        -Dosgi.configuration.area=${datadir}/configuration \
        -Dosgi.frameworkClassPath=${FWCLASSPATH} \
        -Dosgi.framework=file:${basedir}/lib/org.eclipse.osgi-3.8.1.v20120830-144521.jar \
        -Djava.awt.headless=true \
        -classpath ${CLASSPATH} \
        org.eclipse.equinox.launcher.Main \
        -console \
        -consoleLog
fi