#!/bin/sh
#
#    Licensed to the Apache Software Foundation (ASF) under one or more
#    contributor license agreements.  See the NOTICE file distributed with
#    this work for additional information regarding copyright ownership.
#    The ASF licenses this file to You under the Apache License, Version 2.0
#    (the "License"); you may not use this file except in compliance with
#    the License.  You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS,
#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#    See the License for the specific language governing permissions and
#    limitations under the License.
#

#
# handle specific scripts; the SCRIPT_NAME is exactly the name of the Karaf
# script: client, instance, shell, start, status, stop, karaf
#
# if [ "${KARAF_SCRIPT}" == "SCRIPT_NAME" ]; then
#   Actions go here...
# fi

#
# general settings which should be applied for all scripts go here; please keep
# in mind that it is possible that scripts might be executed more than once, e.g.
# in example of the start script where the start script is executed first and the
# karaf script afterwards.
#

#
# The following section shows the possible configuration options for the default 
# karaf scripts
#
# export JAVA_HOME # Location of Java installation
# export JAVA_MIN_MEM # Minimum memory for the JVM
# export JAVA_MAX_MEM # Maximum memory for the JVM
# export JAVA_PERM_MEM # Minimum perm memory for the JVM
# export JAVA_MAX_PERM_MEM # Maximum perm memory for the JVM
# export EXTRA_JAVA_OPTS # Additional JVM options
# export KARAF_HOME # Karaf home folder
# export KARAF_DATA # Karaf data folder
# export KARAF_BASE # Karaf base folder
# export KARAF_ETC  # Karaf etc  folder
# export KARAF_SYSTEM_OPTS # First citizen Karaf options
# export KARAF_OPTS # Additional available Karaf options
# export KARAF_DEBUG # Enable debug mode
# export KARAF_REDIRECT # Enable/set the std/err redirection when using bin/start
# export KARAF_NOROOT # Prevent execution as root if set to true

#
# Import openHAB 2 directory layout
#
. "$DIRNAME/oh2_dir_layout"

#
# Import Karaf shared functions
#
. "$DIRNAME/inc"

#
# set listen address for HTTP(S) server
#
if [ ! -z ${OPENHAB_HTTP_ADDRESS} ]; then
    HTTP_ADDRESS=${OPENHAB_HTTP_ADDRESS}
else
    HTTP_ADDRESS=0.0.0.0
fi

#
# set ports for HTTP(S) server
#
if [ ! -z ${OPENHAB_HTTP_PORT} ]; then
    HTTP_PORT=${OPENHAB_HTTP_PORT}
else
    HTTP_PORT=8080
fi

if [ ! -z ${OPENHAB_HTTPS_PORT} ]; then
    HTTPS_PORT=${OPENHAB_HTTPS_PORT}
else
    HTTPS_PORT=8443
fi

#
# set java options
#

export JAVA_OPTS="${JAVA_OPTS}
  -Dopenhab.home=${OPENHAB_HOME}
  -Dopenhab.conf=${OPENHAB_CONF}
  -Dopenhab.runtime=${OPENHAB_RUNTIME}
  -Dopenhab.userdata=${OPENHAB_USERDATA}
  -Dopenhab.logdir=${OPENHAB_LOGDIR}
  -Dfelix.cm.dir=${OPENHAB_USERDATA}/config
  -Djava.library.path=${OPENHAB_USERDATA}/tmp/lib
  -Djetty.host=${HTTP_ADDRESS}
  -Djetty.http.compliance=RFC2616
  -Dorg.ops4j.pax.web.listening.addresses=${HTTP_ADDRESS}
  -Dorg.osgi.service.http.port=${HTTP_PORT}
  -Dorg.osgi.service.http.port.secure=${HTTPS_PORT}"

#
# set JVM options
#
ARCH=`uname -m`
EXTRA_JAVA_OPTS_COMMON="-Djava.awt.headless=true"
EXTRA_JAVA_OPTS_ARCH=""
case "$ARCH" in
    *arm*) ;;
  *aarch*) ;;
        *) EXTRA_JAVA_OPTS_ARCH="-XX:+UseG1GC" ;;
esac
export EXTRA_JAVA_OPTS="${EXTRA_JAVA_OPTS_COMMON} ${EXTRA_JAVA_OPTS_ARCH} ${EXTRA_JAVA_OPTS}"


# The functions below are modified from the Karaf inc script to set JAVA_HOME to a default value.
# This avoids Karaf printing a warning message at startup.

die() {
  # echo and exit, && command true delays the exit for systemd logging (workaround).
  echo "$*" && command true
  exit 1
}

locateJava() {
    # Setup the Java Virtual Machine
    if ${cygwin} ; then
        [ -n "${JAVA}" ] && JAVA=$(cygpath --unix "${JAVA}")
        [ -n "${JAVA_HOME}" ] && JAVA_HOME=$(cygpath --unix "${JAVA_HOME}")
    fi

    if [ "x${JAVA_HOME}" = "x" ] && [ "${darwin}" = "true" ]; then
        JAVA_HOME="$(/usr/libexec/java_home -v 1.8)"
    fi
    if [ "x${JAVA}" = "x" ] && [ -r /etc/gentoo-release ] ; then
        JAVA_HOME=$(java-config --jre-home)
    fi
    if [ "x${JAVA}" = "x" ]; then
        if [ "x${JAVA_HOME}" != "x" ]; then
            if [ ! -d "${JAVA_HOME}" ]; then
                die "JAVA_HOME is not valid: ${JAVA_HOME}"
            fi
            JAVA="${JAVA_HOME}/bin/java"
        else
            JAVA=$(command -v java)
            if [ "x${JAVA}" = "x" ]; then
                die "java command not found"
            fi
        fi
    fi
    if [ "x${JAVA_HOME}" = "x" ]; then
        JAVA_HOME="$(dirname "$(dirname "$(pathCanonical "${JAVA}")")")"
    fi
}

detectOS
locateJava
checkJvmVersion