#!/bin/bash
export _SYSEXITS_H=1
export EX_OK=0
export EX__BASE=64
export EX_USAGE=64
export EX_DATAERR=65
export EX_NOINPUT=66
export EX_NOUSER=67
export EX_NOHOST=68
export EX_UNAVAILABLE=69
export EX_SOFTWARE=70
export EX_OSERR=71
export EX_OSFILE=72
export EX_CANTCREAT=73
export EX_IOERR=74
export EX_TEMPFAIL=75
export EX_PROTOCOL=76
export EX_NOPERM=77
export EX_CONFIG=78
export EX__MAX=78

volset=''
volume=''
path=''

function beep () {
    echo -en "\007"
}


function check_volset () {
    local volset="$1"
    local rest="${volset//[A-Z0-9_]/}"
    if [ -n "$rest" ] ; then
        echo "Invalid characters in volset ($rest)." > /dev/stderr
        echo -n ''
    elif [ ${#volset} -gt 278 ] ; then
        echo "Volset too long (max=278 characters)." > /dev/stderr
        echo -n ''
    else
        echo -n "$volset"
    fi
}


function check_volume () {
    local volume="$1"
    local rest="${volume//[A-Z0-9_]/}"
    if [ -n "$rest" ] ; then
        echo "Invalid characters in volume ($rest)." > /dev/stderr
        echo -n ''
    elif [ ${#volume} -gt 32 ] ; then
        echo "Volume too long (max=32 characters)." > /dev/stderr
        echo -n ''
    else
        echo -n "$volume"
    fi
}


function check_path () {
    local path="$1"
    if [ ! -r "$path" ] ; then
        echo "Can't read '$path'." > /dev/stderr
        echo -n ''
    elif [ ! -f "$path" ] ; then
        echo "'$path' is not a file!" > /dev/stderr
        echo -n ''
    elif file -b "$path" | grep -q -s AVI ; then
        echo -n "$path"
    else
        echo "'$path' is not an AVI file!" > /dev/stderr
        echo -n ''
    fi
}



function usage () {
    echo "Usage:"
    echo "   $(basename "$0") [volset [volume]]"
}


for arg ; do
    case "$arg" in
    -h|--help)
        usage
        exit $EX_OK
        ;;
     *)
        if [ -z "$volset" ] ; then
            volset=$(check_volset "$arg")
        elif [ -z "$volume" ] ; then
            volume=$(check_volume "$arg")
        else
            echo "Too many arguments."
            usage
            exit $EX_USAGE
        fi
        ;;
    esac
done

echo ''
echo '--- COPYING AN AVI CD ---'
echo ''

while [ -z "$volset" ] ; do
    echo -n "Enter volset: "
    read volset
    volset=$(check_volset "$volset")
done

while [ -z "$volume" ] ; do
    echo -n "Enter volume: "
    read volume
    volume=$(check_volume "$volume")
done


###
### Copying ORIGINAL CD on hard disk.
###

echo -n "Insert ORIGINAL CD and press RETURN:"
beep ; read line

mount /cdrom
if [ "$(find /cdrom/. -name \*.avi -print|wc -l)" -ne 1 ] ; then
    find /cdrom/. -name \*.avi -print
    echo "Not exactly one AVI on this CD. handle manually."
    eject
    exit $EX_DATAERR
fi

echo -n "Copying... "
path="$(find /cdrom/. -name \*.avi -print)"
cp "$path" /alter/bandes/graves
echo "completed with status $?"
umount /cdrom
eject


###
### Burning file from hard disk to VIRGIN CD.
###

beep ; read "Insert VIRGIN CD and press RETURN:"

path=/alter/bandes/graves/"$(basename "$path")"
chmod a+r "$path"
echo "$(dirname "$0")"/grave "${volset:q}" "${volume:q}" "${path:q}"
"$(dirname "$0")"/grave "$volset" "$volume" "$path" && rm -f "$path"


#END#