#!/bin/bash
#  $HeadURL$ $LastChangedRevision$

#  Modules
. $(miniade) || { echo "${0##*/}: ERROR: miniade failed (hint: run 'miniade' to see error)" >&2; exit 1; }

#  Configurable stuff

#  Other globals

main()
{
    local MY_ARGS
    local IPV4_DNS CON_NAME VAR ENCODE_OUTPUT

    #  Defaults for options

    #  Process options
    miniade_process_options --help-handler=help MY_ARGS "$@" && set -- "${MY_ARGS[@]}"

    #  Process arguments
    [ $# = 1 ] || miniade_bad_usage
    type encode > /dev/null 2>&1 || miniade_internal "encode: command not found (hint: is PATH set correctly?)"
    ENCODE_OUTPUT=$(encode --decode "$1") || miniade_internal "encode: failed (hint: see messages above)"
    eval set -- "$ENCODE_OUTPUT"
    [ $# -ge 1 ] || miniade_bad_usage
    while [ $# -ge 1 ]; do
        case $1 in
            ipv4.dns) IPV4_DNS=$2; shift ;;
            con-name) CON_NAME=$2; shift ;;
            *)   miniade_error "$1: unhandled nmcli keyword" ;;
        esac
        shift
    done

    #  Sanity checks and derivations
    for VAR in CON_NAME IPV4_DNS; do
        eval "[ \"X\$$VAR\" != X ]" || miniade_error "$VAR: not set"
    done

    #  Clean

    #  Configure
    nmcli con mod "$CON_NAME" +ipv4.dns "$IPV4_DNS"
}

help()
{
    local PROGNAME

    miniade_get_progname PROGNAME
    echo "Usage: $PROGNAME [ <standard-options> ] con-name@<connection-name>@ipv4.dns@<nameserver-ip>"
    exit 0
}

main "$@"