#!/bin/sh

# This script is for use with efax-gtk.  It can be used automatically
# to e-mail a fax to a user when a fax is received.  To use it you
# must have the Heirloom mailx (previously called 'nail') enhanced
# mail program installed.  If Heirloom mailx does not come with your
# distribution, you can get it from
# http://heirloom.sourceforge.net/mailx.html .  If the PDF output
# format is chosen then this also uses the ps2pdf script which comes
# with Ghostscript, which should be within the user's path.

# Edit the user options below as necessary.

########### start of user options ###########

# The fax can be e-mailed as a PDF (Portable Document Format) or PS
# (PostScript) file.  Choose the format here.

FORMAT=pdf
#FORMAT=ps

# Specify the page size to be used here.

PAGE=a4       # ISO A4
#PAGE=letter   # US letter
#PAGE=legal    # US legal

# This is the address to which the fax is to be sent.  If none is
# specified, it will be send to $USER@localhost

#MAIL_ADDR=

# SHRINK reduces the size of the fax image which is e-mailed to enable
# the recipient to print it out with an allowance for printer margins.
# It is a percentage, so if you comment it out, or specify 100, then
# the image will be sent full size.  It cannot be set to a size larger
# than 100, or less than 50.

SHRINK=98

# if you have specified a sub-directory WORK_SUBDIR: in the efax-gtkrc
# configuration file then you will need to amend the following line
# accordingly

WORK_SUBDIR=""

############ end of user options ############

if [ -z "$SHRINK" ] ; then SHRINK=100
fi

if [ -z "$MAIL_ADDR" ] ; then MAIL_ADDR="$USER@localhost"
fi

PAGE_a4="210x297mm"
PAGE_letter="216x279mm"
PAGE_legal="216x356mm"

case $PAGE in
	a4) 	PAGE_DIM="$PAGE_a4"
                H_OFFSET=$((210*(100-$SHRINK)/200))
                V_OFFSET=$((297*(100-$SHRINK)/200))
	;;
	letter)	PAGE_DIM="$PAGE_letter"
                H_OFFSET=$((216*(100-$SHRINK)/200))
                V_OFFSET=$((279*(100-$SHRINK)/200))
	;;
	legal) 	PAGE_DIM="$PAGE_legal"
                H_OFFSET=$((216*(100-$SHRINK)/200))
                V_OFFSET=$((356*(100-$SHRINK)/200))
	;;
	*)      echo "Incorrect page size specified"
	        exit 2
	;;
esac

if [ $SHRINK -gt 100 ]; then
  echo "SHRINK is too large"
  exit 1
elif [ $SHRINK -lt 50 ]; then
  echo "SHRINK is too small"
  exit 1
elif [ $SHRINK -eq 100 ]; then
  SIZE="1"
else
  SIZE="0."$SHRINK
fi


DISPLACE=$H_OFFSET","$V_OFFSET"mm"
FILES=$HOME/$WORK_SUBDIR/faxin/$1/$1.*

# generate the file to e-mail in the chosen format
case $FORMAT in
	pdf) 	TEMP_FILE=$HOME/efax-gtk-$1.pdf
                efix-0.9a -ve -r300 -ops -p$PAGE_DIM -s$SIZE -d$DISPLACE $FILES | ps2pdf -sPAPERSIZE=$PAGE - $TEMP_FILE
	;;
	ps)	TEMP_FILE=$HOME/efax-gtk-$1.ps
                efix-0.9a -ve -r300 -ops -p$PAGE_DIM -s$SIZE -d$DISPLACE $FILES > $TEMP_FILE
	;;
	*)      echo "Incorrect output format specified"
	        exit 3
	;;
esac

# now e-mail it
MAIL_CMD="mailx -s efax-gtk -a$TEMP_FILE $MAIL_ADDR"
echo "Fax $1 received by efax-gtk attached" | $MAIL_CMD
sleep 1
rm $TEMP_FILE