#!/bin/bash 

#
# Conextualisation for EOLE Servers
# 
# If the virtual machine is running EOLE,
# we try to create a "small" defautl EOLE 
# configuration file
#


CONFIG_EOL="/etc/eole/config.eol"

#
# Print information message
# Params: 
#   $@ : The message
#
function info()
{
   logger "[Hâpy context][INFO][$@]"
   echo "$@"
}


#
# Print warning message
# Params: 
#   $@ : The message
#
function warn()
{
   logger "[Hâpy context][WARN][$@]"
   echo "WARNING: [$@]"
}

#
# If some variables in context.sh
# are prefixed by "CR_" we manage 
# to add them to config.eol
# This way we can fill EOLE configuration
# directly from ONE contextualisation
#
function manage_creole_variables()
{
  local configfile=${1}
  VARS=$(( set -o posix ; set ) | awk -F "\n" '/^CR_/ {sub(/^CR_/,"",$1);print}')
  OLDIFS=${IFS}
  IFS=$'\n'
  for var in $VARS
  do
    local varname=${var%=*}
    local value=${var#*=}
    if [[ "${value}" == *}\' ]] && [[ "${value}" == \'{* ]]
    then
       IFSbck=${IFS}
       IFS=$','
       out=""
       val=${value//\'}
       val=(${val//[{\}]})
       for (( i=0; i<=$(( ${#val[*]} -1 )); i++ ))
       do
         if [[ ${i} -eq 0 ]]
         then
           out="[\"${val[i]}\","
         elif [[ ${i} -eq $((${#val[*]} -1)) ]]
         then
           out="${out} \"${val[i]}\"]"
         else
           out="${out} \"${val[i]}\","
         fi
       done
       echo "   \"${varname,,}\": {\"owner\": \"hapy\", \"val\": ${out}}," >> ${configfile}
       IFS=${IFSbck}
    else
       echo "   \"${varname,,}\": {\"owner\": \"hapy\", \"val\": \"${value//\'}\"}," >> ${configfile}
    fi
  done
  IFS=${OLDIFS}
}

#
# List all network devices and create eole
# minimal configuration file
#
function create_config_eol()
{
  local version=${1}
  if [[ ! -e ${CONFIG_EOL} ]]
  then
    #devices=($(ls /sys/class/net/ | grep -v "lo"))
    devices=($(/sbin/ifquery --list -a | grep -v "^lo"))
    total=${#devices[*]}
    echo "{" >> ${CONFIG_EOL}
    echo "   \"___version___\": \"${version}\", " >> ${CONFIG_EOL}
    echo "   \"nombre_interfaces\": {\"owner\": \"hapy\", \"val\": \"${total}\"}," >> ${CONFIG_EOL}
    manage_creole_variables ${CONFIG_EOL}
    for (( i=0; i<=$(( $total -1 )); i++ ))
    do
      iface=${devices[i]^^}
      CONF=$(/sbin/ifquery ${iface,,})
      CONF=${CONF// }
      IFS=$'\n'
      for cnf in $CONF
      do
        case $cnf in
          address*) IP=${cnf#*:} ;;
          netmask*) MASK=${cnf#*:} ;;
          gateway*) GW=${cnf#*:};;
          *)continue;;
        esac
      done

      echo "   \"adresse_ip_${iface,,}\": {\"owner\": \"hapy\", \"val\": \"${IP}\"}," >> ${CONFIG_EOL}
      if [[ "${iface}" == "ETH0" ]]
      then
        echo "   \"adresse_ip_gw\": {\"owner\": \"hapy\", \"val\": \"${GW}\"}," >> ${CONFIG_EOL}
      fi 
      if [[ ${i} == $(( $total -1 )) ]]
      then
        echo "   \"adresse_netmask_${iface,,}\": {\"owner\": \"hapy\", \"val\": \"${MASK}\"}" >> ${CONFIG_EOL}
      else
        echo "   \"adresse_netmask_${iface,,}\": {\"owner\": \"hapy\", \"val\": \"${MASK}\"}," >> ${CONFIG_EOL}
      fi
    done
    echo "}" >> ${CONFIG_EOL}
    info "Minimal config.eol file created"
  else
    info "config.eol file exists skipping context actions"
    return 42
  fi
  return 0
}

CRGET=$(which CreoleGet)
if [[ ${?} -eq 0 ]]
then
  EOLE_VERSION=$(python -c "from creole import eoleversion; print(eoleversion.EOLE_RELEASE)")
  create_config_eol ${EOLE_VERSION}
  exit ${?}
else
  exit 0
fi