#! /bin/sh
#
# magic-cat - this script tries to guess what kind of data a file contains,
#	      and then runs a program that knows what to do with that data
#	      It can be teamed with AFDP by 'afdpsend -c magic-cat file1 file2'
#	      to send multimedia files to many systems at once. Upon receiving
#	      the files each system will run magic-cat to display them locally.
#	      Steve Kotsopoulos <steve@ecf.toronto.edu>
#
# rcsid[] = "$Id: magic-cat,v 1.11 1998/07/02 19:32:58 steve Exp $";

PATH=/local/bin:/usr/local/bin:/usr/ucb:/usr/bin:/bin:$PATH:$HOME/bin

# start with some reasonable defaults
TMP=/tmp/magic.$$
MYMAGIC=$HOME/bin/etc.magic	# for systems where /etc/magic is incomplete
PROGfile="file -m $MYMAGIC"
PROGfile="file"
PROGimage="xli -delay 10 -geometry +200+200 -quiet"
PROGps="ghostview -geometry -0-0"
PROGmpeg="mpeg_play"
PROGmovie="xanim"
PROGsound=$PROGfile
PROGrgb=$PROGfile
PROGtext="head"

case $# in
	0)	echo 'Usage: magic-cat file ...'; exit ;;
	1)	BACKGROUND=1 ;;		# run file in background, if only 1 arg
	*)	BACKGROUND=0 ;;		# run files in foreground, 1 at a time
esac

case `uname` in
	Linux|NetBSD|"BSD/OS"|"BSD/386")
		XPLAYGIZMO=false; export XPLAYGIZMO; PROGimage="xv";
		PROGsound="showaudio audio/au" ;;
	IRIX)	
		PROGsound="sfplay -p"; PROGrgb="ipaste" ;;
	SunOS)	
		PROGsound="play" ;;
	*)	
		PROGps=$PROGfile ;;	# assume we don't have ghostview
esac

# if !$DISPLAY ; then		# we aren't running under X Windows!?
#	PROGimage=$PROGfile
# fi

for ARG
do
	# default program to run, if we can't figure out what file contains
	PROG=$PROGfile

	$PROGfile $ARG > $TMP
	if grep "SGI imagelib image" $TMP; then
		PROG=$PROGrgb
	elif egrep '(image|GIF|JPEG|jpeg|rasterfile|xpm|xbm)' $TMP ; then
		PROG=$PROGimage
	elif grep face $TMP ; then
		PROG=xview			# xv does not support face files
	elif grep AIFF $TMP ; then
		PROG=playaiff			# only on SGI systems
	elif egrep '(audio|sound)' $TMP ; then
		PROG=$PROGsound
	elif grep -i PostScript $TMP ; then
		PROG=$PROGps
	elif grep -i mpg $TMP ; then
		PROG=$PROGmpeg
	elif grep -i movie $TMP ; then
		PROG=$PROGmovie
	elif grep -i PDF $TMP; then
		PROG=xpdf
	elif grep -i text $TMP; then
		PROG=$PROGtext
	elif grep "shell script" $TMP; then
		PROG=$PROGtext
	else
		echo "$ARG: file type not supported:"
	fi

	if test "$BACKGROUND" = 1 ; then
		$PROG $ARG &	# run program in background, so we exit NOW
	else
		$PROG $ARG
	fi
done

rm -f $TMP
exit 0