#!/bin/bash

BINDIR="$(cd "${0%/*}" && echo $PWD)"
IMAGE_TAG=$(${BINDIR}/image_version wi_server)
WICONTENT_URL="$(${BINDIR}/config WICONTENT_URL)"
PROJECT_NAME="$(${BINDIR}/config PROJECT_NAME)"
IMAGE="$(${BINDIR}/config REGISTRY_PREFIX)/wi_server"
WICONTENT_URL="$(${BINDIR}/config WICONTENT_URL)"
LEADERBOARD_ADDRESS_AND_PORT="$(${BINDIR}/config LEADERBOARD_ADDRESS_AND_PORT)"
INSTANCE_NAME="i-${IMAGE_TAG}"
TEMP_FILENAME=$(mktemp)

echo "NOTE: This script assumes use of Google Compute Engine."
echo "Before continuing ensure these steps have been taken:"
echo "1. Install gcloud from here if not already installed:"
echo "   https://cloud.google.com/sdk/"
echo "2. If already installed ensure it is up to date:"
echo "   $ gcloud components update"
echo "3. Authenicate:"
echo "   $ gcloud auth login"
echo "4. Select the proper project:"
echo "   $ gcloud config set project ${PROJECT_NAME}"
echo -n "Unique numeric server id (used for sorting): "
read SERVER_ID
echo -n "Server name (appears in-game): "
read SERVER_NAME
echo -n "Server location (appears in-game): "
read SERVER_LOCATION
echo -n "Type yes to create new public server: "
read YES
if [ "$YES" != "yes" ]; then
    exit 1;
fi

cat > ${TEMP_FILENAME} <<xyzzy
apiVersion: v1
kind: Pod
metadata:
  name: ${PROJECT_NAME}
spec:
  containers:
    - name: ${PROJECT_NAME}
      image: ${IMAGE}:${IMAGE_TAG}
      args: ['runwis', '--build_type', 'release', '--public_listen_port', '22221', '--image_tag', '${IMAGE_TAG}', '--gce_metadata', '--wicontent_url', '${WICONTENT_URL}', '--args', '--server_id', '${SERVER_ID}', '--server_name', '${SERVER_NAME}', '--server_location', '${SERVER_LOCATION}', '--server_type', 'production', '--listen_address', '0.0.0.0', '--listen_port', '22221', '--stats_address', '${LEADERBOARD_ADDRESS_AND_PORT}', '--checksync']
      imagePullPolicy: Always
      ports:
        - containerPort: 22221
          hostPort: 22221
xyzzy

echo Launching instance ${INSTANCE_NAME}...
gcloud compute instances create "${INSTANCE_NAME}" \
    --image container-vm \
    --metadata-from-file google-container-manifest=${TEMP_FILENAME} \
    --zone us-central1-a \
    --machine-type g1-small

if [ $? -eq 0 ]; then
    echo Success.
else
    echo Error code $?
fi

rm -f ${TEMP_FILENAME}