#!/bin/bash
#  $HeadURL: https://svn.pasta.freemyip.com/main/miniade/trunk/bin/nop-sh $ $LastChangedRevision: 10133 $

#  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

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

    #  Process arguments
    [ $# = 0 ] || miniade_bad_usage

    #  Sanity checks and derivations

    #  Guts
    echo -n "final value: "
    read FINAL_VALUE
    
    echo -n "current value: "
    read FIRST_VALUE
    { ! [[ $FIRST_VALUE =~ ^0x ]]; } || FIRST_VALUE=$(printf "%d" $FIRST_VALUE)
    FIRST_TIME=`date '+%s'`
    
    while :; do
        echo -n "current value: "
        read SECOND_VALUE
        { ! [[ $SECOND_VALUE =~ ^0x ]]; } || SECOND_VALUE=$(printf "%d" $SECOND_VALUE)
        SECOND_TIME=`date '+%s'`
    
        perl -e "printf \"estimated time of arrival: %s\n\", scalar localtime ($FIRST_TIME + ($FINAL_VALUE-$FIRST_VALUE)*($SECOND_TIME-$FIRST_TIME)/($SECOND_VALUE-$FIRST_VALUE));"
    done
}

main "$@"