get_jobdescription_type () {
    echo "json"
}

gen_values_array () {
    local v_base=$1
    local v_idx=0

    local v_var="${v_base}${v_idx}"
    v_json=""
    while [ -n "${!v_var}" ]; do
        v_json="${v_json}${json_coma}\"${!v_var}\""
        json_coma=","
        v_idx=$(( v_idx + 1 ))
        v_var="${v_base}${v_idx}"
    done
    echo $v_json
}

gen_key_value_object () {
    local f1_base=$1
    local f2_base=$2
    f_json=""
    f_idx=0
    f_var="${f1_base}${f_idx}"
    while [ -n "${!f_var}" ]; do
        f_location_var="${f2_base}${f_idx}"
        f_json="${f_json}${json_coma}{\"${!f_var}\":\"${!f_location_var}\"}"
        json_coma=","
        f_idx=$((f_idx+1))
    	f_var="${f1_base}${f_idx}"
    done
    echo $f_json
}


gen_job_description () { 
    local json_f=$1

    [ -n "$CPUS" ] && NPRC=$CPUS || NPRC=$((${NODES:-1}*${PPN:-1}))

    [ -n "$WALLTIME" ] && _WALLTIME="\"wallTime\":\"${WALLTIME}\","
    [ -n "$DISK" ] && _DISK="\"disk\":\"${DISK}\","
    [ -n "$MEMORY" ] && _MEMORY="\"memory\":\"${MEMORY}\","
    [ -n "$NPRC" ] && _NPRC="\"cpus\":\"${NPRC}\""

cat <<END | sed '/^$/d' > $json_f
{
  "request_type": "newjob",
  "jobinfo": { 
        "jobname"    : "$JOBNAME", 
        "executable" : "$EXECUTABLE"
  },
  "resources": { 
        $_WALLTIME $_DISK $_MEMORY $_NPRC 
  },
  "environment": [
        $( gen_key_value_object "ENVIRONMENT_NAME_" "ENVIRONMENT_VALUE_" )
  ],
  "runtime_software": [
        $( gen_values_array "RUNTIME_VALUE_" )
  ],
  "runtime_features": [
        $( gen_values_array "RUNTIME_FEATURE_" )
  ],
  "input_files": [
        $( gen_key_value_object "INPUT_FILES_NAME_" "INPUT_FILES_LOCATION_" )
  ],
  "output_files": [
        $( gen_key_value_object "OUTPUT_FILES_NAME_" "OUTPUT_FILES_LOCATION_" )
  ]
}
END
}

jobdescription_gen_params () {
cat <<END
###############################################################
#          GENERAL JOB REQUIREMENTS FOR GLORIA PILOT          #
###############################################################

# Pilots runs on any node, including Rainbow VM, Cloud or HTCondor vanilla universe
# Only SMP is supported (default is 1 core)
CPUS=1

# Job walltime (in minutes). If not specified - any pilot can be used.
WALLTIME="1800"

# Required disk space (in MB). If not specified - any pilot can be used.
DISK="1024"

# Job memory requirements (in MB). If not specified - any pilot can be used.
MEMORY="512"
END
}