#!/bin/sh

# utility script for printing in a CIP pool
# $Id: print.sh,v 1.3 2023/09/27 11:55:43 oj14ozun Exp $
# https://wwwcip.cs.fau.de/~oj14ozun/src+etc/print.sh

# To the extent possible under law, the person who associated CC0 with
# this script has waived all copyright and related or neighboring rights.

help() {
    cat <<EOF
$0, a DWIM utility script for printing

Usage: $0 [duplex|tumble|color|cip1|cip2]... FILE...

Before listing any FILEs, these arguments will modify the behaviour of
the script:

- duplex  :: Print the document on both sides of the paper
- tumble  :: Print on both sides, but turn pages on the longer side
- gray	  :: Force black-and-white printing
- verbose :: Print lpr command being executed
- dry-run :: Do not execute any command
- cip1	  :: Use a CIP1 printer instead of inferring from hostname
- cip2	  :: Analogously
EOF
    exit 0
}

die() {
    echo "$@" >/dev/stderr
    exit 1
}

LOCATION=$(hostname)
while :
do
    case $1 in
	help|--help)	help;;
	d|duplex)	DUPLEX=t;;
	t|tumble)	TUMBLE=t;;
	bw|gray)	GRAYSCALE=t;;
	v|verbose)	VERBOSE=t;;
	dryrun|dry-run)	DRYRUN=t;;
	CIP1|cip1)	LOCATION="cip1";;
	CIP2|cip2)	LOCATION="cip2";;
	bib|bibcip)	LOCATION="cip8";;
	--|*) break ;;
    esac
    shift
done

# see https://wwwcip.cs.fau.de/cipPools/equipment.en.html
case $LOCATION in
    cip1*)
	PRINTER="ps1acip"
	if [ -n "$TUMBLE" ]
	then PRINTER="$PRINTER"t
	elif [ -n "$DUPLEX" ]
	then PRINTER="$PRINTER"d
	fi
	;;
    cip2*)
	PRINTER="ps2acip"
	if [ -n "$TUMBLE" ]
	then PRINTER="$PRINTER"t
	elif [ -n "$DUPLEX" ]
	then PRINTER="$PRINTER"d
	fi
	;;
    cip8*)
	PRINTER="ps2ccip"
	if [ -n "$GRAYSCALE" ]
	then PRINTER="$PRINTER"bw
	fi
	if [ -n "$TUMBLE" ]
	then PRINTER="$PRINTER"t
	elif [ -n "$DUPLEX" ]
	then PRINTER="$PRINTER"d
	fi
	;;
    *)
	die "No known printer nearby, specify one manually"
	;;
esac

if [ -n "$VERBOSE" ]
then echo lpr -P"$PRINTER" "$@"
fi
if [ -z "$DRYRUN" ]
then lpr -P"$PRINTER" "$@"
fi