set -ex

if [[ $# -ne 1 ]]; then
  echo "Pass number of bikes"
  echo "Usage: ./createvehicle 10"
  exit
fi

for i in $(seq 1 $1); do
  bike_id=bike-$i
  wget https://pki.google.com/roots.pem

  openssl req -x509 -newkey rsa:2048 -keyout rsa_private.pem -nodes -out rsa_cert.pem -subj "/CN=unused"
  openssl rsa -in rsa_private.pem -outform DER -out rsa_private.der
  # openssl x509 -in roots.pem -outform DER -out roots.der

  gcloud iot devices delete -q $bike_id --region=asia-east1 --registry=iotcore || true
  gcloud iot devices create $bike_id --region=asia-east1 --registry=iotcore --public-key path=rsa_cert.pem,type=rs256

  mkdir -p $bike_id
  mv roots.pem rsa_private.pem rsa_private.der $bike_id
  rm -rf *.pem *.der
done