#!/usr/bin/env bash
################################
## used to deploy the lib artifact from remove maven center to the standalone docker container 
################################
usage(){
    echo 'usage: CONTAINER=<container> deploy-artifact.sh [OPTIONS] <artifact>'
    echo 'artifact'
    echo '   the maven dependency e.g. org.json:json:20230227'
    echo 'OPTIONS:'
    echo '   -h  --help         for help'
    echo '   -f  --force        force to add new jar, default to reject'
    echo '   -r  --restart      restart container only'
    exit -1
}
######################
deploy_container=${CONTAINER}
####################
if [ ! $deploy_container ];then 
   usage
fi
#########################
ENDPOINT="http://localhost"  # for SOCK_OPT
SOCK_OPT='--unix-socket /var/run/docker.sock'

## working dir within container => /webapps
getworkingdir(){
   endpoint=$1
   container=$2

   # echo "curl -s $endpoint/containers/$container/json | jq '.HostConfig.Binds[] | match(\"([a-z/]+):[a-z/]*/webapps[a-z/]*\").string'"
   # local binds=$(curl -s $endpoint/containers/$container/json | jq '.HostConfig.Binds[] | match("([a-z/]+):[a-z/]*/webapps[a-z/]*").string')
   echo "curl $SOCK_OPT -s $endpoint/containers/$container/json | jq '.HostConfig.Binds[] | match(\"[a-z_/]*:/webapps*\").string'" > /dev/stderr
   local binds=$(curl $SOCK_OPT -s $endpoint/containers/$container/json | jq '.HostConfig.Binds[] | match("[a-z_/]*:/webapps*").string')
   # for workingdir_nginx
   #local binds=$(curl $SOCK_OPT -s $endpoint/containers/$container/json | jq '.HostConfig.Binds[] | match("[a-z/]*/usr/share/nginx/html:rw").string')

   for bind in $binds;do
      bind=${bind%\"}
      bind=${bind#\"}
      bind=${bind%:rw}
      bind=${bind%:/webapps}
      echo $bind
    done
}


getcontainerjsonvalue(){
   endpoint=$1
   container=$2
   jq_filter="$3"

   # echo "curl -s $endpoint/containers/$container/json | jq '.HostConfig.Binds[] | match(\"([a-z/]+):[a-z/]*/webapps[a-z/]*\").string'"
   # local binds=$(curl -s $endpoint/containers/$container/json | jq '.HostConfig.Binds[] | match("([a-z/]+):[a-z/]*/webapps[a-z/]*").string')
   echo "curl $SOCK_OPT -s $endpoint/containers/$container/json | jq $jq_filter" > /dev/stderr
   local result=$(curl $SOCK_OPT -s $endpoint/containers/$container/json | jq $jq_filter)
   result=${result%\"}
   result=${result#\"}
   echo $result
}

# working dir from filesystem
getcomposeworkingdir(){
   endpoint=$1
   container=$2
   echo $(getcontainerjsonvalue $endpoint $container '.Config.Labels."com.docker.compose.project.working_dir"')
}

getcontainerstatus(){
   endpoint=$1
   container=$2
   echo $(getcontainerjsonvalue $endpoint $container '.State.Status')
}

stopcontainer(){
    endpoint=$1
    container=$2
    echo curl $SOCK_OPT -s -X POST $endpoint/containers/$container/stop > /dev/stderr
    curl $SOCK_OPT -s -X POST $endpoint/containers/$container/stop
}
restartcontainer(){
    endpoint=$1
    container=$2
    echo curl $SOCK_OPT -s -X POST $endpoint/containers/$container/restart > /dev/stderr
    curl $SOCK_OPT -s -X POST $endpoint/containers/$container/restart
}



### ################################
### main
####################################
artifact=
artifact_opt=
force_opt=
restart_opt=
for opt in $@;do
  if [[ $opt = -h || $opt = '--help' ]];then
      usage
  elif [[ $opt = -f || $opt = '--force' ]];then
      force_opt=$opt
  elif [[ $opt = '-r' || $opt = '--restart' ]];then 
      restart_opt=$opt
  else 
      artifact_opt=$opt
  fi
done
if [ $restart_opt ];then 
   echo "restarting $deploy_container"
   unset $artifact_opt
fi
if [ ! $artifact_opt ];then
   usage
fi


main_deploy_artifact(){
  artifact=$1

  webapps_workingdir=$(getcomposeworkingdir $ENDPOINT $deploy_container )
  echo "compose_working_dir=$webapps_workingdir" > /dev/stderr
  if [ ! $webapps_workdingdir ];then
	  webapps_workingdir=$(getworkingdir $ENDPOINT $deploy_container )
    echo "webapps_working_dir=$webapps_workingdir" > /dev/stderr
  fi
  if [ ! $webapps_workingdir ];then
    echo "fail to get webapps working dir from container: $container !" > /dev/stderr
    exit -2
  fi
  if [ ! -d $webapps_workingdir ];then
    echo "$webapps_workingdir not exists !" > /dev/stderr
    exit -2
  fi

  docker run --rm -v $webapps_workingdir:/webapps zelejs/allin-web:deploy-lib $artifact $force_opt
}

#############################################
## main
#############################################
## stop container first
echo stopping container $deploy_container ..
stopcontainer $ENDPOINT $deploy_container
status=$(getcontainerstatus $ENDPOINT $deploy_container)
if [[ ! $status = 'exited'  ]];then
   echo "fatal: fail to stop $deploy_container: $status !"
   exit
fi
echo stopped: $status !

## restart or deploy
main_deploy_artifact $artifact_opt

## restart container
echo restarting container $deploy_container ..
restartcontainer $ENDPOINT $deploy_container

status=$(getcontainerstatus $ENDPOINT $deploy_container)
echo restarted: $status ..