#!/bin/bash

# Username
user="$2"

# Page title (not used at this time, "Document" instead)
ptitle="$3"

# Printing date
ddate="`LC_ALL=en_US.UTF-8 date '+%Y/%m/%d %H:%M:%S'`"

# Temporary directory
uid="/tmp/pstoricohddst-gdi-`uuidgen`"
mkdir -p $uid

# Converting from PostScript to PostScript-monochrome, then to PBM image format (per page)
gs -sDEVICE=psmono -sOutputFile=- -r600 -dQUIET -dBATCH -dNOPAUSE - | gs -sDEVICE=pbmraw -sOutputFile=${uid}/%d-page.pbm -r600 -dQUIET -dBATCH -dNOPAUSE -

# Flushing PJL header
cat <<EOF
%-12345X@PJL
@PJL SET TIMESTAMP=$ddate
@PJL SET FILENAME=Document
@PJL SET COMPRESS=JBIG
@PJL SET USERNAME=$user
@PJL SET COVER=OFF
@PJL SET HOLD=OFF
EOF

ls $uid/ | grep 'pbm$' | sort -n | while read page; do

    # Converting page to JBIG format (parameters are very special for this printer!)
    pbmtojbg -p 72 -o 3 -m 0 -q < $uid/$page > $uid/raster.jbig

    # Taking image size
    jsize=`wc -c < $uid/raster.jbig`

    # Taking image dimensions
    read fn ft xs ys garb < <(identify $uid/raster.jbig | tr "x" " ")

    # Flushing page header
    cat <<EOF
@PJL SET PAGESTATUS=START
@PJL SET COPIES=1
@PJL SET MEDIASOURCE=AUTO
@PJL SET MEDIATYPE=PLAINRECYCLE
@PJL SET PAPER=A4
@PJL SET PAPERWIDTH=$xs
@PJL SET PAPERLENGTH=$ys
@PJL SET RESOLUTION=600
@PJL SET IMAGELEN=$jsize
EOF

    # Flushing image
    cat $uid/raster.jbig

    # Flushing page footer
    # TODO: pixelcount for toner estimate
    cat <<EOF
@PJL SET DOTCOUNT=1132782
@PJL SET PAGESTATUS=END
EOF

done

# Flushing PJL footer
cat <<EOF
@PJL EOJ
%-12345X
EOF

# Cleaning up
rm -rf $uid