#!/bin/bash -eu


function error_path {
  >&2 echo "Error: you must be in either /data/domains/*/ or /system/*/ to execute these commands"
  exit 1
}

function systemctl_param {
  first_level_path=`pwd | cut -d'/' -f2`
  second_level_path=`pwd | cut -d'/' -f3`

  if [ "$first_level_path" == "system" ]; then
    module=`pwd | cut -d'/' -f3`
    if [ -n "$module" ]; then
      echo s@$module
    else
      error_path
    fi
  elif [ "$first_level_path" == "data" ] && [ "$second_level_path" == "domains" ]; then
    domain=`pwd | cut -d'/' -f4`
    if [ -n "$domain" ]; then
      echo u@$domain
    else
      error_path
    fi
  else
    error_path
  fi
}


case "$1" in
  start|status|enable|disable|restart|stop)
    if [ -n "$(systemctl_param)" ]; then
      echo "systemctl $1 $(systemctl_param)"
      systemctl $1 $(systemctl_param)
    fi;;
  journal)
    if [ -n "$(systemctl_param)" ]; then
      journalctl -fu $(systemctl_param)
    fi;;
  ps|exec|logs)
    if [ -f ./env ]; then
      env $(cat ./env | xargs) docker-compose $1 ${@:2}
    else
      docker-compose $1 ${@:2}
    fi;;
  update)
    if [ "$(pwd)" == "/libre.sh" ]; then
      git pull
      cp /libre.sh/unit-files/* /etc/systemd/system && systemctl daemon-reload
      cp /libre.sh/utils/* /opt/bin/
    elif [ -n "$(systemctl_param)" ]; then
      git pull
      docker-compose pull
      docker-compose build
      /opt/bin/libre restart
    fi;;
  provision)
    provision ${@:2};;
  stats)
    docker stats $(docker ps|grep -v "NAMES"|awk '{ print $NF }'|tr "\n" " ");;
  *)
    echo "Usage:"
    echo " - start|status|enable|disable|restart|stop: command sent to systemctl."
    echo " - ps|exec|logs: command sent to docker compose." 
    echo " - update: to update the current folder."
    echo " - stats: show docker stats with names."
esac