#!/bin/bash -e

[[ -n $NAMESPACE                    ]] && namespace="$NAMESPACE"
[[ -n $SERVERASSIST_DB_IP           ]] && db="$SERVERASSIST_DB_IP"
[[ -n $SERVERASSIST_DB_HOSTNAME     ]] && db="$SERVERASSIST_DB_HOSTNAME"
[[ -n $SERVERASSIST_UTIL_IP         ]] && util="$SERVERASSIST_UTIL_IP"
[[ -n $SERVERASSIST_UTIL_HOSTNAME   ]] && util="$SERVERASSIST_UTIL_HOSTNAME"

# JS_CLUSTER has precedence
[[ -n $JS_CLUSTER_DB_IP             ]] && db="$JS_CLUSTER_DB_IP"
[[ -n $JS_CLUSTER_DB_HOSTNAME       ]] && db="$JS_CLUSTER_DB_HOSTNAME"
[[ -n $JS_CLUSTER_UTIL_IP           ]] && util="$JS_CLUSTER_UTIL_IP"
[[ -n $JS_CLUSTER_UTIL_HOSTNAME     ]] && util="$JS_CLUSTER_UTIL_HOSTNAME"

# The cheapest thing with high network
instance_type="c4.xlarge"
on_instance_build_dir="build-sa"

eval "$(cli-shezargs $@)"

die() {
  echo "  $@"
  echo ""
  echo "Usage: $0 options" 2>&1
  echo ""
  echo "  ./build-scripts/build-instance --key=mario_demo --service=app --bucket-namespace=mobilewebprint --image-id=precise"
  echo ""
  echo "          --service=app --key=serverassist_demo --bucket-namespace=mobilewebprint" 2>&1
  echo "          --service=app --key=serverassist_demo --bucket-namespace=mobilewebprint" 2>&1
  echo ""
  echo "  Options:"
  echo ""
  echo "          --dry-run"
  echo "          --ruby"
  echo "          --skip-ami"
  echo "          --no-terminate"
  echo "          --build-number=20"
  echo "          --db=10.13.21.229"
  echo "          --util=10.13.21.4"
  echo "          --namespace="
  echo "          --image-id="
  echo "          --instance-type="
  echo "          --xvdf="
  echo "          --color="
  echo ""
  exit 1
}

# These never get auto-generated, so exit early
[[ -n $key                  ]] || die "Missing --key"
[[ -n $service              ]] || die "Missing --service"
[[ -n $bucket_namespace     ]] || die "Missing --bucket-namespace"

if [[ -z $namespace ]];then
  [[ -z $NAMESPACE ]] && die "Missing --namespace"

  namespace="$NAMESPACE"
fi

[[ -z $color                ]] && color="teal"
[[ -z $build_number         ]] && build_number="$(jsaws-ec2 getNextBuildNumber --ns=${namespace} | underscore select '.build' --outfmt=text)"
[[ -z $image_id             ]] && image_id="xenial"

[[ -z $base_name            ]] && base_name="$(echo $image_id | sed 's/[0-9]*$//')"

if [[ -z $ip ]]; then
  my_ip="$(curl -s 'http://169.254.169.254/latest/meta-data/local-ipv4')"
  ip="$(echo $my_ip | sed 's/[.][0-9][0-9]*$/.91/')"

  if   [[ $color == green   ]]; then ip="$(echo $ip | sed 's/[.]0[.]/.21./')"
  elif [[ $color == blue    ]]; then ip="$(echo $ip | sed 's/[.]0[.]/.22./')"
  elif [[ $color == teal    ]]; then ip="$(echo $ip | sed 's/[.]0[.]/.23./')"
  elif [[ $color == yellow  ]]; then ip="$(echo $ip | sed 's/[.]0[.]/.24./')"
  fi
fi

[[ -n $ip                   ]] || die "Missing --ip"
[[ -n $color                ]] || die "Missing --color"
[[ -n $instance_type        ]] || die "Missing --instance-type"
[[ -n $build_number         ]] || die "Missing --build-number"

# ----- Build up the cli parameters
[[ -n $db                   ]] && run_instance_params="$run_instance_params --db=$db"
[[ -n $util                 ]] && run_instance_params="$run_instance_params --util=$util"
[[ -n $namespace            ]] && run_instance_params="$run_instance_params --namespace=$namespace"
[[ -n $color                ]] && run_instance_params="$run_instance_params --color=$color"
[[ -n $key                  ]] && run_instance_params="$run_instance_params --key=$key"
[[ -n $ip                   ]] && run_instance_params="$run_instance_params --ip=${ip}"
[[ -n $instance_type        ]] && run_instance_params="$run_instance_params --instance-type=$instance_type"
[[ -n $image_id             ]] && run_instance_params="$run_instance_params --image-id=$image_id"

[[ -n $xvdf                 ]] && run_instance_params="$run_instance_params --xvdf=$xvdf"

# -------------------- Run Instance --------------------
echo jsaws-ec2 runInstance $run_instance_params --first-buildup --jsaws-boot
if [[ -n $dry_run ]]; then
  exit 0
fi

run_instance_result="/tmp/js-cluster-build-instance-$$.json"
     jsaws-ec2 runInstance $run_instance_params --first-buildup --jsaws-boot | tee $run_instance_result | underscore print --color

# Get the actual IP from the result
ip="$(jsaws-get $run_instance_result '.InstanceId ~ .PrivateIpAddress')"
instance_id="$(jsaws-get $run_instance_result '.PrivateIpAddress ~ .InstanceId')"

wait_for_start $ip

# Copy buildout scripts
sshix $ip 'mkdir -p zz_packages/build zz_packages/build-logs'
scpix -r ${script_dir}/* "${ip}:~/zz_packages/build/"

# -------------------- aa-build-all --------------------

build_all_params="$build_all_params ${bucket_namespace} ${service} --namespace=${namespace} --stack=${stack} --service=${service}"

jsaws-ssh-run "$ip" "./zz_packages/build/on-instance/aa-build-all ${build_all_params}" "${service}-build"

# -------------------- Create AMI ----------------------
if [[ -z $skip_ami ]]; then

  jsaws-ssh-run "$ip" "./zz_packages/build/on-instance/a01-pre-snapshot" "${service}-build"

  create_ami_result="/tmp/js-cluster-create-ami-$$.json"
  time jsaws-ec2 createAmi --instance-id=${instance_id} --description="jscluster for ${namespace}" --name="${namespace}-anystack-${build_number}-base" | tee $create_ami_result | underscore print --color

  image_id="$(jsaws-get $create_ami_result '.ImageId')"

  aws ec2 create-tags --resources $image_id --tags "Key=readyFor,Value=test"
  [[ -n $base_name ]] && aws ec2 create-tags --resources $image_id --tags "Key=baseName,Value=${base_name}"

  sleep 5
  wait_for_start $ip

  # -------------------- Terminate Instance ----------------------
  if [[ -z $no_terminate ]]; then

    jsaws-ec2 terminateInstance --instance-id=${instance_id} | underscore print --color

    #
    # This is the *normal* exit
    #
    exit "$?"

  fi
fi

# -------------------- Startup Services ----------------------
jsaws-ssh-run "$ip" "./zz_packages/build/on-instance/b01-start-from-snapshot" "${service}-build"

jsaws-ssh-run "$ip" "./zz_packages/build/on-instance/b02-start-services"      "${service}-build"