#!/bin/bash

if [[ $APPSH_HOME == "" ]]
then
  APPSH_HOME=`dirname "$0"`
  APPSH_HOME=`cd "$APPSH_HOME/.." && pwd`
fi

operate_usage() {
  if [ -n "$1" ]
  then
    echo "Error:" "$@" >&2
  fi

  echo "usage: $0 [operate method] -n name -i instance" >&2
  exit 1
}

method_operate_usage() {
  if [ -n "$1" ]
  then
    echo "Error:" $@ >&2
  fi

  echo "usage: $0 operate <operate method>" >&2
  echo "" >&2
  echo "Available operate methods:" >&2
  echo "  start" >&2
  echo "  stop" >&2
  echo "  restart" >&2
  echo "  status" >&2
}

method_operate() {
  local name="$1"; shift
  local instance="$1"; shift
  local method="$1"

  if [ $# -gt 0 ]
  then
    shift
  fi

  bin=`$APPSH_HOME/bin/app-cat-conf -f $apps/$name/$instance/current/etc/app.conf -g app -k method | cut -f 2 -d =`

  if [ -z "$bin" ]
  then
    bin=$APPSH_HOME/.app/lib/pid-method
  fi

  if [ ! -x "$name/$instance/current/$bin" ]
  then
    echo "Invalid executable: $bin" >&2
    exit 1
  fi

  case "$method" in
    start)   run_app "$name" "$instance" "$bin" "start" "$@" ;;
    stop)    run_app "$name" "$instance" "$bin" "stop" "$@" ;;
    status)  run_app "$name" "$instance" "$bin" "status" "$@" ;;
    restart) run_app "$name" "$instance" "$bin" "restart" "$@" ;;
    run)     run_app "$name" "$instance" "$bin" "run" "$@" ;;
    *)
      if [ -z "$method" ]
      then
        method_operate_usage
      else
        method_operate_usage "Unknown method $method"
      fi
      ;;
  esac
  exit $?
}