#!/bin/sh

OS=`uname`
HOSTNAME=`hostname`


# Check if everything we need is there.

if [ $OS != "Linux" ] && [ $OS != "Darwin" ]; then
  echo "Error: Only Linux or MacOS are supported."
  exit 1;
fi

if ! type "docker" > /dev/null; then
  echo "Error: You need to have docker installed."
  exit 1;
fi

if ! type "docker-compose" > /dev/null; then
  echo "Error: You need to have docker-compose installed."
  exit 1;
fi

if ! type "java" > /dev/null; then
  echo "Error: You need to have java installed."
  exit 1;
fi

if ! type "curl" > /dev/null; then
  echo "Error: You need to have curl installed."
  exit 1;
fi


if [ "$OS" = "Darwin" ]; then

   NATIVE_DOCKER_CMD=`docker ps`
   NATIVE_DOCKER=`echo $?`

  if [ $NATIVE_DOCKER -ne 0 ]; then
    echo "Check if docker-machine is running."

    if ! type "docker-machine" > /dev/null; then
      echo "Error: You need to have docker-machine installed."
      exit 1;
    fi


    DEFAULT_DOCKER_MACHINE=`docker-machine ls | grep default | grep Running | wc -l`
    if [ $DEFAULT_DOCKER_MACHINE -eq 1 ]; then
      HOSTNAME=`docker-machine ip default`
    else
      echo "Error: a docker-machine with the name 'default' must be running."
      exit 1;
    fi

  else
    echo "=================================================="
    echo "You seem like to run docker mac beta. \n PLEASE MAKE SURE YOU HAVE ENABLED THE "
    echo "\n\n EXPERIMENTAL VPN COMPATIBILITY MODE in the settings. \n\n\n"
    echo "\n Press >ENTER< to continue \n"
    echo "=================================================="
    read
  fi
fi

# Start cloning the repositories.

repos="pivio-web pivio-server pivio-client pivio-demo-data"

for repo in ${repos}
do
   echo $repo
   if [ -d "$repo" ]
   then
      cd $repo
      git pull
      cd ..
   else
      git clone https://github.com/pivio/$repo.git
   fi

   cd $repo
   if [ -e "build.gradle" ]; then
      ./gradlew build --no-daemon
   fi
   cd ..
done

# Create the docker-compose file.

rm -r docker-compose.yml > /dev/null
cat <<EOF > docker-compose.yml
services:
  pivio-web:
    build: pivio-web/
    ports:
     - "8080:8080"
    links:
     - pivio-server
    volumes:
     - $PWD/pivio-conf/:/pivio-conf
    environment:
     - PIVIO_SERVER=http://pivio-server:9123
     - PIVIO_SERVER_JS=http://$HOSTNAME:9123
     - PIVIO_VIEW=http://$HOSTNAME:8080
    devices:
     - "/dev/urandom:/dev/random"
  pivio-server:
    build: pivio-server/
    ports:
     - "9123:9123"
    links:
     - elasticsearch
    devices:
     - "/dev/urandom:/dev/random"
  elasticsearch:
    image: elasticsearch:2.4.6
    command: ["/bin/sh", "-c", "if ! plugin list | grep -q delete-by-query; then plugin install delete-by-query; fi && gosu elasticsearch elasticsearch"]
    devices:
     - "/dev/urandom:/dev/random"
EOF

rm -rf pivio-conf
mkdir -p pivio-conf
cat <<EOF > pivio-conf/server_config.yaml
api: http://pivio-server:9123/
js_api: http://$HOSTNAME:9123/
mainurl: http://$HOSTNAME:8080/
pages:
  - description: Overview
    url: /app/overview
    id: tabOverview
  - description: Query
    url: /app/query
    id: tabQuery
  - description: Feed
    url: /app/feed
    id: tabFeed
EOF

docker-compose up -d --build

echo "Waiting for the servers to come up (on $HOSTNAME). This can take a while because of not enough entropy on your machine."

# This can take a while because of missing enough entropy. I you know how
# to speed this up. Let me know. Thanks.

until $(curl --output /dev/null -X GET --silent --head --fail http://$HOSTNAME:9123/document); do
    printf '.'
    sleep 5
done

echo "Uploading demo data."

java -jar pivio-client/build/libs/pivio.jar -yamldir $PWD/pivio-demo-data/ -serviceurl http://$HOSTNAME:9123/document

if [ $? -eq 0 ]; then
  echo "Waiting for enough entropy for the webserver to be available."
  until $(curl --output /dev/null -X GET --silent --head --fail http://$HOSTNAME:8080/); do
      printf '.'
      sleep 5
  done

  echo "Open your webbrowser and point it to $HOSTNAME:8080";
  if [ "$OS" = "Darwin" ]; then
    open "http://$HOSTNAME:8080"
  fi
else
  echo "Error: Oops, something went wrong. I'm sorry. Please file a bug report."
  exit 1;
fi

echo "You can stop the demo with 'docker-compose stop'."