#!/bin/bash

function soffice_conv(){
  mkdir -p ./tmp_s243a_convert_$$
  soffice --headless --convert-to txt:Text --outdir ./tmp_$$ "$1" #2>/dev/null >/dev/null
  ls -1 ./tmp_$$ | xargs -I % cat '%'
  rm -rf ./tmp_s243a_convert_$$	
}
function wvText_conv(){
  mkdir -p ./tmp_s243a_convert_$$
  wvText ./tmp_$$ "$1" ./tmp_$$/"$1".txt #2>/dev/null >/dev/null
  ls -1 ./tmp_$$ | xargs -I % cat '%'
  rm -rf ./tmp_s243a_convert_$$	
}
if [ ! -z "`which unoconv`" ]; then
  CONV_PGM=unoconv
  CONV_CMD="unoconv --stdout -f text"
elif [ ! -z "`which soffice`" ]; then
  CONV_PGM=soffice
  CONV_CMD="soffice_conv" #http://hitekhedhelp.blogspot.com/2011/08/omega-overview.html
elif [ ! -z "`which abiword`" ]; then
  CONV_PGM=abiword
  CONV_CMD="abiword --to=txt --to-name=fd://1"
fi
if [ ! -z "`which file`" ]; then #maybe also check that the file command actually works
  if [[ "$(file --mime-type "$1")" = */rtf ]]; then #text/rtf
    if [ ! -z "`which unrtf`" ]; then
      CONV_PGM="unrtf"
      CONV_CMD="unrtf --text"
    fi
    #Possible utilities;
    #TEXTUTIL/ https://superuser.com/questions/243084/rtf-to-txt-on-unix
  elif [[ "$(file --mime-type "$1")" = */msword ]]; then #application/msword
    if [ ! -z "`which antiword`" ]; then
      CONV_PGM="antiword"
      CONV_CMD="antiword"    
    elif [ ! -z "`which wvText`" ] && [ -z "$CONV_CMD" ]; then #Some office tools may be better than this util. 
      CONV_PGM="wvText"
      CONV_CMD="wvText_conv"    
    fi
  elif [[  "$(file --mime-type "$1")" = */vnd.oasis.opendocument.* ]]; then #nd.oasis.opendocument
    if [ ! -z "`which odt2txt`" ]; then
      CONV_PGM="odt2txt"
      CONV_CMD="odt2txt"      
    elif [ ! z- "`which odf2txt`" ] && [ -z "$CONV_PGM" ] && [ ! z- "`which python`" ]; then
      CONV_PGM="odf2txt"
      CONV_CMD="odf2txt"     
    fi
  fi
fi
$CONV_CMD "$1"