#!/usr/bin/env sh
# $0 is a script name, 
# $1, $2, $3 etc are passed arguments
# $1 is our command
CMD=$1

if [ -z "$SERVICE_IP" ]; then
    export SERVICE_IP=`hostname -i`
fi
echo "SERVICE_IP=$SERVICE_IP"

if [ -z "$SERVICE_PORT" ]; then
    export SERVICE_PORT=10550
fi
echo "SERVICE_PORT=$SERVICE_PORT"

if [ -z "$OPENPALETTE_MSB_IP" ]; then
    echo "Missing required variable OPENPALETTE_MSB_IP: Microservices Service Bus address <ip>:<port>"
    exit 1
fi
if [ -z "$OPENPALETTE_MSB_PORT" ]; then
    echo "Missing required variable OPENPALETTE_MSB_PORT: Microservices Service Bus address <ip>:<port>"
    exit 1
fi
echo "MSB_ADDR=${OPENPALETTE_MSB_IP}:${OPENPALETTE_MSB_PORT}"

# Wait for MSB initialization
echo "Wait for MSB initialization"
for i in {1..5}; do
    curl -sS -m 1 ${OPENPALETTE_MSB_IP}:${OPENPALETTE_MSB_PORT} > /dev/null && break
    sleep $i
done

curldata='{"serviceName": "workflow", "version": "v1", "url": "/api/workflow/v1","protocol": "REST", "visualRange": "1", "nodes": [ {"ip": "'$SERVICE_IP'","port": "'$SERVICE_PORT'","ttl": 0}]}'

curl -v -X POST -H "Accept: Application/json" -H "Content-Type: application/json" -d "${curldata}" http://$OPENPALETTE_MSB_IP:$OPENPALETTE_MSB_PORT/api/microservices/v1/services

case "$CMD" in  
  "dev" )
    ;;
  "start" )
    # we can modify files here, using ENV variables passed in 
    # "docker create" command. It can't be done during build process.
    exec ./run.sh
    ;;
   * )
    # Run custom command. Thanks to this line we can still use 
    # "docker run our_image /bin/bash" and it will work
    exec $CMD ${@:2}
    ;;
esac