#!/bin/sh

prefix=/usr/pkg
exec_prefix=${prefix}
datadir=${prefix}/share
tmpdir=${TMPDIR:-/tmp}

# argument checking
if [ ${#} -ne "2" ]; then
	echo "Usage: ${0} <word document> <text output file>"
	exit 1
fi

USE_DUMP=0
which elinks >/dev/null 2>&1
if [ ${?} -eq "0" ]; then
    USE_DUMP=3
else
    which links >/dev/null 2>&1
    if [ ${?} -eq "0" ]; then
	USE_DUMP=2
    else
	which lynx >/dev/null 2>&1
	if [ ${?} -eq "0" ]; then
	    USE_DUMP=1
	fi
    fi    
fi

if [ $USE_DUMP -eq "1" ]; then
	echo "Could not find required program 'elinks' or 'links'"
	echo "Using lynx. Output will be pretty ugly."
elif [ $USE_DUMP -eq "0" ]; then
	echo "Could not find required program 'elinks', 'links', or even 'lynx'"
	echo "Using wvWare -x wvText.xml. Output will be pretty bad."
fi

if [ $USE_DUMP -gt "0" ]; then

    # first, test for wvHtml
    which wvHtml >/dev/null 2>&1
    if [ ${?} -ne "0" ]; then
       	echo "Could not find required program 'wvHtml'"
	exit 1
    fi

    # intermediate file
    TMP_FILE=`mktemp "$tmpdir/wv-XXXXXX"`
    TMP_FILE=`basename "$TMP_FILE"`

    wvHtml -1 "${1}" --targetdir="${tmpdir}" "${TMP_FILE}" >/dev/null 2>&1
    if [ ${?} -ne "0" ]; then
	echo "Could not convert into HTML"
	exit 1
    fi

    if [ $USE_DUMP -eq "3" ]; then
	# elinks does the best
	elinks -dump -force-html "${tmpdir}/${TMP_FILE}" > "${2}"
    elif [ $USE_DUMP -eq "2" ]; then
	# links does a pretty good job
	links -dump "${tmpdir}/${TMP_FILE}" > "${2}"
    else
	# lynx sucks, but does better than wvText.xml
	TERM=vt100 lynx -dump -force_html "${tmpdir}/${TMP_FILE}" > "${2}"
    fi;

    if [ ${?} -ne "0" ]; then
	    echo "Could not convert into Text"
	    rm -f "${tmpdir}/${TMP_FILE}"
	    exit 1
    fi

    # clean up
    rm -f "${tmpdir}/${TMP_FILE}"

else
    # fall back onto our cruddy output
    # this is, admittedly, better than running
    # 'strings' on the word document though :)
    wvWare -x ${datadir}/wv/wvText.xml "${1}" > "${2}"
fi
