#!/usr/bin/env bash

CONF_TEMP="conf.temp"

makeConfigCache() {
  local conf_file="$1"

  local line conf_group conf_group_name conf_name conf_val conf_level
  local conf_level=0

  declare -a conf_group

  while read line ; do
    [[ "${line:0:2}" == "//" ]] && continue

    line=`echo "$line" | sed 's/ =/=/g' | sed 's/= /=/g'`

    conf_name="${line%=*}"
    conf_name="${conf_name// /}"

    [[ -z "$conf_name" ]] && continue

    conf_val="${line#*=}"

    if [[ -z "$conf_val" || "${conf_name}" == "$conf_val" ]] ; then
      if [[ "${conf_name:0:1}" == "{" ]] ; then
        conf_level=$(($conf_level + 1))
      elif [[ "${conf_name:0:1}" == "}" ]] ; then
        unset conf_group[$conf_level]
        conf_level=$(($conf_level - 1))
      else
        conf_group[$conf_level]="$conf_name"
        conf_group_name="${conf_group[@]}"
        conf_group_name="${conf_group_name/ /_}"
      fi
    else
      conf_val="${conf_val//;/}"
      conf_val=`echo $conf_val`

      echo "${conf_group_name}_${conf_name}=${conf_val}" >> $CONF_TEMP
    fi
  done < <(awk 1 $conf_file)
}

getValList() {
  local pattern="$1"

  local line

  while read line ; do
    if [[ $line =~ $pattern ]] ; then
      echo "${line//${pattern}_/}"
    fi
  done < <(awk 1 $CONF_TEMP)
}

rm -f $CONF_TEMP

makeConfigCache $1
getValList "services"
getValList "services" | cut -f1 -d"="