#!/bin/bash

# office2office - simple bash wrapper for DocumentConverter.py, which
# uses OpenOffice.org (OOo) to convert from any supported file format
# to any other supported file format.  Built atop DocumentConverter.py
# version 1.0.0.

# Copyright (c) 2009 Claude Rubinson
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

DOCUMENTCONVERTER=~/bin/DocumentConverter.py  # upstream is http://www.artofsolving.com/opensource/pyodconverter

function help () {
    echo "Usage: office2office [-h] infile outfile"
}

while getopts "h" Opt; do
    case $Opt in 
	h ) help; exit 0 ;;
	* ) help > /dev/stderr; exit 1 ;;
    esac
done

infile=$1
outfile=$2

# rudimentary error trapping
if ! [ -a $infile ]; then
    echo "office2office: $infile: File missing" > /dev/stderr
    exit 1
fi

if [ -z $outfile ]; then
    echo "office2office: Outfile missing" > /dev/stderr
    exit 1
fi

# if OOo is already running, DocumentConverter.py fails.  This is a
# crass workaround; ideally, figure out how to connect to running
# instance and/or start up new instance
runningpid="$(ps ax|grep soffice.bin|grep -v grep|cut -d" " -f1)"
if [ -n "$runningpid" ]; then
    echo "OpenOffice.org is already running at pid $runningpid.  You'll need to shut down all instances of OpenOffice.org before proceeding." > /dev/stderr
    exit 1
fi

# start up OOo in headless mode on port 8100.  If you change this
# port, you'll also need to change it in the DocumentConverter.py
# script
#
# note that this will fail if an instance (headless or not) of OOo is
# already running; should fix
ooffice -headless -accept="socket,port=8100;urp;"
sleep 1  # it takes a second or so for OOo to start up; try increasing
	 # this timeout if you get an error from DocumentConverter.py
	 # saying that it can't connect to the OOo instance.

# do it
python $DOCUMENTCONVERTER $infile $outfile

# get PID of OOo instance and kill
oopid=$(ps ax|grep soffice.bin|grep -v grep|cut -d" " -f1)
kill -KILL $oopid