#! /bin/sh

db=$1; shift
text="$1"

get () {
    cdb -q $db "$1" || echo 0
}

put () {
    (printf "+%d,%d:%s->%s\n" ${#1} ${#2} "$1" $2;
        cdb -d $db) | cdb -c -u $db
}

adj () {
    who=${text%%$1$1}
    if [ "$who" = "$sender" ]; then
        echo "Nice try, $sender."
    else
        put "$who" $(expr $(get "$who") $1 1)
    fi
}


case "$text" in
    whuffie\ *)
        who=${text##whuffie }
        amt=$(get "$who")
        echo "$who has $amt whuffie"
        ;;
    *++)
        adj +
        ;;
    *--)
        adj -
        ;;
    *)
        exit 1
        ;;
esac