#!/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
    #  Defaults for options
    OPT_FILE=
    OPT_TOUCH=false

    #  Process options
    special_opts_handler()
    {
        case $1 in
            --file=*) OPT_FILE=${1#*=} ;;
            --touch)  OPT_TOUCH=true ;;
            *)        return 1 ;;
        esac
    }
    miniade_process_options --help-handler=help --special-opts-handler=special_opts_handler 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"
    [ $# = 2 ] || miniade_bad_usage
    LOGIN="$1"
    SSHKEY="$2"

    #  Sanity checks and derivations
    id $LOGIN >/dev/null 2>&1 || miniade_error "$LOGIN: no such login"
    if [ "X$OPT_FILE" != X ]; then
        CHOWN_FLAG=false
    else
        CHOWN_FLAG=true
        eval "OPT_FILE=~$LOGIN/.ssh/authorized_keys"
    fi

    #  Guts
    lineinfile --after=EOF --text="$SSHKEY" --file=$OPT_FILE
    ! $CHOWN_FLAG || chown -R $LOGIN:$LOGIN $(dirname $OPT_FILE)
    ! $OPT_TOUCH || touch $OPT_FILE
}

help()
{
    local PROGNAME

    miniade_get_progname PROGNAME
    echo "Usage: $PROGNAME [ <standard-options> ] [ --file=<file> ] [ --touch ] <login>@<key>"
    exit 0
}

main "$@"