#/bin/bash

command=$1
config=$2
config_file=shared/config/"$config"/conf.yml
cidfile=cids/"$config".cid

image=samsaffron/discourse

[ $# -ne 2 ] && {
  echo "Usage: launcher COMMAND CONFIG"
  echo "Commands:"
  echo "    start:    Start/initialize a container"
  echo "    stop:     Stop a running container"
  echo "    restart:  Restart a container"
  echo "    destroy:  Stop and remove a container"
  echo "    shell:    start a bash shell in a running container"
  echo "    logs:     Docker logs for container"
  exit 1
}

if [ ! -e $config_file ]
  then
    echo "Config file was not found, ensure $config_file exists"
    exit 1
fi

if [ "$command" == "shell" ]
  then

    if [ ! -e $cidfile ]
       then
         echo "No cid found"
         exit 1
       else
         docker attach `cat $cidfile`
         exit 0
    fi
fi

if [ "$command" == "stop" ]
  then

    if [ ! -e $cidfile ]
       then
         echo "No cid found"
         exit 1
       else
         docker stop -t 10 `cat $cidfile`
         exit 0
    fi
fi

if [ "$command" == "logs" ]
  then

    if [ ! -e $cidfile ]
       then
         echo "No cid found"
         exit 1
       else
         docker logs `cat $cidfile`
         exit 0
    fi
fi

if [ "$command" == "start" ]
  then

    if [ ! -e $cidfile ]
       then
         echo "No cid found, creating a new container"
         docker run -cidfile $cidfile -p 22 -p 3000 -d -v `pwd`/shared:/shared samsaffron/discourse /shared/pups/bin/pups /$config_file
         exit 0
       else
         echo "cid found, ensuring container is started"
         docker start `cat $cidfile`
         exit 0
    fi
fi


if [ "$command" == "destroy" ]
  then
    if [ -e $cidfile ]
      then
        echo "destroying container $cidfile"
        docker stop -t 10 `cat $cidfile`
        docker rm `cat $cidfile` && rm $cidfile
        exit 0
      else
        echo "nothing to destroy cidfile does not exist"
        exit 1
    fi
fi