# stop script on error
set -e

# Check to see if root CA file exists, download if not
if [ ! -f ./root-CA.crt ]; then
  printf "\nNO ROOT CERTIFICATE\n"
  curl https://www.amazontrust.com/repository/AmazonRootCA1.pem > root-CA.crt
fi

if [ ! -f ./rootCA.pem ]; then
  printf "\nNO HPIoT ROOT CERTIFICATE\n"
fi

if [ ! -f ./deviceCert.pem ]; then
  openssl genrsa -out deviceCert.key 2048
  openssl req -config server.conf -new -key deviceCert.key -out deviceCert.pem
  openssl x509 -req -in deviceCert.pem -CA rootCA.pem -CAkey rootCA.key -CAcreateserial -out deviceCert.pem -days 365 -sha256
fi

# install AWS Device SDK for Python if not already installed
if [ ! -d ./aws-iot-device-sdk-python ]; then
  printf "\nInstalling AWS SDK...\n"
  git clone https://github.com/aws/aws-iot-device-sdk-python.git
  pushd aws-iot-device-sdk-python
  python setup.py install
  popd
fi

if [ ! -f ./deviceCertAndCACert.pem ]; then
  cat deviceCert.pem rootCA.pem > deviceCertAndCACert.pem
fi


# run pub/sub sample app using certificates downloaded in package
printf "\nRunning pub/sub sample application...\n"
python aws-iot-device-sdk-python/samples/basicPubSub/basicPubSub.py -e a3641et952pm28-ats.iot.us-east-1.amazonaws.com -r root-CA.crt -c deviceCertAndCACert.pem -k deviceCert.key