#!/bin/bash
trap 'kill 0' exit
period=60
snd_oldmail=/usr/X11R6/GNUstep/Apps/WMMail.app/Sounds/NewMail.au
snd_newmail=/usr/X11R6/lib/TkDesk/sounds/newmail.au

for arg ; do
    case "$arg" in
    --period=*)
        period=`echo "$arg"|sed -e 's/--period=//'`
        ;;
    -h|--help)
        usage
        exit 0
        ;;
    -*|*)
        echo "${pname}: invalid argument: '${arg}'."
        usage
        exit 1
        ;;
    esac
done

once_over_two=0
old_status=''
while sleep ${period} ; do
    status="`echo q | mail | head -2 | tail -1`"
    # No mail for pascal
    # "/var/spool/mail/pascal": 4 messages 3 unread
    # "/var/spool/mail/pascal": 1 message
    if [ "$status" = "$old_status" ] ; then
        status=none
    else
        old_status=$status
        case "$status" in
        "No mail for"*)
            status=none
            ;;
        *unread|*new)
            status=new
            ;;
        *message|*messages)
            status=old
            ;;
        *)
            status=unknown
            ;;
        esac
    fi
    case ${status} in
    old)
        if [ $once_over_two -eq 0 ] ; then
            play ${snd_oldmail}
            once_over_two=1
        else
            once_over_two=0
        fi
        ;;
    new)
        if [ $once_over_two -eq 0 ] ; then
            play ${snd_newmail}
            once_over_two=1
        else
            once_over_two=0
        fi
        ;;
    none|*)
        ;;
    esac
done

#END#