#!/bin/sh

_term() {
  echo "Caught SIGTERM/SIGINT signal, graceful shutdown of bot.."
  if [ -z "$pid" ]; then
    echo "Bot isn't running, exiting."
    exit 0
  else
    # SIGTERM triggers the JVM shutdown hook (App.shutdown); wait until it has finished.
    kill -TERM "$pid" 2>/dev/null
    wait "$pid"
    exit $?
  fi
}

trap _term TERM
trap _term INT

API_PORT="${API_PORT:-9000}"
MYSQL_HOST="${MYSQL_HOST:-localhost}"
MYSQL_PORT="${MYSQL_PORT:-3306}"
MYSQL_DATABASE="${MYSQL_DATABASE:-netneutrality}"

if [ ! -f /usr/bin/nc ]; then
    echo "nc not found. Exiting."
    exit 1
fi

echo "Waiting 10 seconds for database to start.."
sleep 10

echo "Checking if MySQL / MariaDB is started.."
if /usr/bin/nc -z $MYSQL_HOST $MYSQL_PORT; then
  echo "Database OK. Starting bot..";

  export FLYWAY_URL="jdbc:mysql://${MYSQL_HOST}:${MYSQL_PORT}/${MYSQL_DATABASE}"
  export FLYWAY_USER="${MYSQL_USER}"
  export FLYWAY_PASSWORD="${MYSQL_PASSWORD}"

  /opt/java/openjdk/bin/java -jar /app/netneutrality.jar &

  pid=$!
  wait "$pid"
else
  echo "No connection to database, shutting down.."
  exit 1
fi