#!/bin/bash

# This file contains the configuration for the Java server

# *******************************************************
# ATTENTION: Make sure to always also check the variables at the end
# of this file as there could be overwritten ones!
# *******************************************************

if [ -z $SERVER_NAME ]; then
  SERVER_NAME=MASTER
fi

# This is a default heap size only; the boot script of an instance (see
# configuration/sailing) will add a MEMORY assignment to this file in the
# server's directory that has a default value computed from the total
# memory installed in the machine and the number of server instances to
# start on that machine. This default can be overwritten by manually appending
# another MEMORY assignment at the end of the file or by defining an environment
# file with a MEMORY assignment which is then used in conjunction with refreshInstance.sh
# or by setting the MEMORY variable in the EC2 Instance Details section which will be appended
# at the end of the file.
MEMORY="6000m"

# Message Queue hostname where to
# send messages for replicas (this server is master)
if [ -z $REPLICATION_HOST ]; then
  REPLICATION_HOST=localhost
fi
# For the port, use 0 for the RabbitMQ default or a specific port that your RabbitMQ server is listening on
if [ -z $REPLICATION_PORT ]; then
  REPLICATION_PORT=0
fi
# The name of the message queuing fan-out exchange that this server will use in its role as replication master.
# Make sure this is unique so that no other master is writing to this exchange at any time.
if [ -z $REPLICATION_CHANNEL ]; then
  REPLICATION_CHANNEL=sapsailinganalytics-master
fi

if [ -z $TELNET_PORT ]; then
  TELNET_PORT=14888
fi
if [ -z $SERVER_PORT ]; then
  SERVER_PORT=8888
fi
if [ -z $MONGODB_HOST ]; then
  MONGODB_HOST=10.0.75.1
fi
if [ -z $MONGODB_PORT ]; then
  MONGODB_PORT=27017
fi
if [ -z $MONGODB_NAME ]; then
  MONGODB_NAME=winddb
fi
if [ -z $EXPEDITION_PORT ]; then
  EXPEDITION_PORT=2010
fi

# To start replication upon startup provide the fully-qualified names of the Replicable service classes
# for which to trigger replication. If you activate this make sure to
# set the REPLICATE_MASTER_EXCHANGE_NAME variable to the
# same channel the master is using in its REPLICATION_CHANNEL variable

if [ -n "$AUTO_REPLICATE" ]; then
  REPLICATE_ON_START=com.sap.sailing.server.impl.RacingEventServiceImpl,com.sap.sse.security.impl.SecurityServiceImpl,com.sap.sse.filestorage.impl.FileStorageManagementServiceImpl,com.sap.sse.mail.impl.MailServiceImpl,com.sap.sailing.polars.impl.PolarDataServiceImpl,com.sap.sailing.domain.racelogtracking.impl.fixtracker.RegattaLogFixTrackerRegattaListener
fi
# Host where the master Java instance is running
# Make sure firewall configurations allow access
#
# REPLICATE_MASTER_SERVLET_HOST=
# REPLICATE_MASTER_SERVLET_PORT=

# Host where RabbitMQ is running 
# REPLICATE_MASTER_QUEUE_HOST=
# Port that RabbitMQ is listening on (normally something like 5672); use 0 to connect to RabbitMQ's default port
if [ -z $REPLICATE_MASTER_QUEUE_PORT ]; then
  REPLICATE_MASTER_QUEUE_PORT=0
fi

# Exchange name that the master from which to auto-replicate is using as
# its REPLICATION_CHANNEL variable, mapping to the master's replication.exchangeName
# system property.
#
# REPLICATE_MASTER_EXCHANGE_NAME=

# Credentials for replication access to the master server
# Make sure, the user is granted the permission SERVER:REPLICATE:<server-name>
# Credentials can be provided either as a combination of username and password,
# or alternatively as a single bearer token that was obtained, e.g., through
#   curl -d "username=myuser&password=mysecretpassword" "https://master-server.sapsailing.com/security/api/restsecurity/access_token" | jq .access_token
# 
# REPLICATE_MASTER_USERNAME=
# REPLICATE_MASTER_PASSWORD=
# REPLICATE_MASTER_BEARER_TOKEN=

# Automatic build and test configuration
DEPLOY_TO=server
BUILD_BEFORE_START=False
BUILD_FROM=master
COMPILE_GWT=True
RUN_TESTS=False
CODE_DIRECTORY=code

# Specify an email adress that should be notified
# whenever a build or install has been completed
#
# BUILD_COMPLETE_NOTIFY=

# Specify an email address that should be notified
# whenever the server has been started
#
# SERVER_STARTUP_NOTIFY=

# Specify filename that is usually located at
# http://release.sapsailing.com/ that should
# be used as a base for the server
#
# INSTALL_FROM_RELEASE=

# Specify name of file that can usually be found
# at http://release.sapsailing.com/environments
#
# USE_ENVIRONMENT=

INSTANCE_ID="$SERVER_NAME:$SERVER_PORT"
if [[ ! -d $JAVA_HOME ]] && [[ -f "/usr/libexec/java_home" ]]; then
    JAVA_HOME=`/usr/libexec/java_home`
fi
JAVA_BINARY="$JAVA_HOME/bin/java"
JAVA_VERSION_OUTPUT=$("$JAVA_BINARY" -version 2>&1)
JAVA_VERSION=$(echo "$JAVA_VERSION_OUTPUT" | sed 's/^.* version "\(.*\)\.\(.*\)\..*".*$/\1.\2/; 1q')
export JAVA_11_LOGGING_ARGS="-Xlog:gc+ergo*=trace:file=logs/gc_ergo.log:time:filecount=10,filesize=100000 -Xlog:gc*:file=logs/gc.log:time:filecount=10,filesize=100000"
export JAVA_11_ARGS="-Dosgi.java.profile=file://`pwd`/JavaSE-11.profile --add-modules=ALL-SYSTEM -Djavax.xml.bind.JAXBContextFactory=com.sun.xml.bind.v2.ContextFactory -XX:ThreadPriorityPolicy=1 -XX:+UnlockExperimentalVMOptions -XX:+UseZGC ${JAVA_11_LOGGING_ARGS}"
export JAVA_8_LOGGING_ARGS="-XX:+PrintAdaptiveSizePolicy -XX:+PrintGCTimeStamps -XX:+PrintGCDetails -Xloggc:logs/gc.log -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M"
echo JAVA_VERSION detected: $JAVA_VERSION
if echo $JAVA_VERSION | grep -q "^11\."; then
  echo Java 11 detected
  JAVA_VERSION_SPECIFIC_ARGS=$JAVA_11_ARGS
else
  echo Java other than 11 detected
  # options for use with SAP JVM only:
  if echo "$JAVA_VERSION_OUTPUT" | grep -q "SAP Java"; then
    ADDITIONAL_JAVA_ARGS="$ADDITIONAL_JAVA_ARGS -XX:+GCHistory -XX:GCHistoryFilename=logs/sapjvm_gc@PID.prf"
    BUILD=$( echo "$JAVA_VERSION_OUTPUT" | grep "(build [^ ]*)" )
    MAJOR=$( echo "$BUILD" | sed -e 's/^.*(build \([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)).*$/\1/' )
    MINOR=$( echo "$BUILD" | sed -e 's/^.*(build \([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)).*$/\2/' )
    UPDATE=$( echo "$BUILD" | sed -e 's/^.*(build \([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)).*$/\3/' )
    echo "SAP JVM $MAJOR $MINOR $UPDATE detected"
    if [ $MAJOR -ge 8 -a $MINOR -ge 1 -a $UPDATE -ge 45 ]; then
      echo "Update 8.1.045 or later; using Java11 GC logging options"
      LOGGING_ARGS="$JAVA_11_LOGGING_ARGS"
    else 
      echo "Update before 8.1.045; using Java8 GC logging options"
      LOGGING_ARGS="$JAVA_8_LOGGING_ARGS"
    fi
  else
    # non-SAP JVM 8
    export LOGGING_ARGS="$JAVA_8_LOGGING_ARGS"
  fi
  export JAVA_8_ARGS="-XX:ThreadPriorityPolicy=2 -XX:+UseG1GC ${LOGGING_ARGS}"
  JAVA_VERSION_SPECIFIC_ARGS=$JAVA_8_ARGS
fi
ADDITIONAL_JAVA_ARGS="$JAVA_VERSION_SPECIFIC_ARGS $ADDITIONAL_JAVA_ARGS -Dpersistentcompetitors.clear=false -Drestore.tracked.races=true -XX:MaxGCPauseMillis=500"
echo ADDITIONAL_JAVA_ARGS=${ADDITIONAL_JAVA_ARGS}
ON_AMAZON=`command -v ec2-metadata`

# **** Overwritten environment variables ****