#! /bin/sh
# .lessfilter (Bourne shell script) -- Used by Debian's lesspipe script

## set -x
## exec 2>> ~/.local/log/lessfilter.log

case `echo "$1" | tr '[:upper:]' '[:lower:]'` in
  *.lz4)
    if [ -x "`which lz4`" ]; then
      lz4 -dc "$1"
    else
      echo "No lz4 available"
    fi
    exit 0
    ;;

  *.tdz)                tar tvf "$1" --gzip --force-local ;;
  *.tlz4|*.tar.lz4)     tar tvf "$1" --use-compress-program=lz4 --force-local ;;
  *.tar.zstd|*.tzstd|*.tzst)    tar tvf "$1" --zstd --force-local ;;
  *.tar.lzo|tar.lzop)   tar tvf "$1" --lzop --force-local ;;
  *.tar.br|tar.brotli)  tar tvf "$1" --use-compress-program=brotli --force-local ;;

  *.docx)
    if [ -x "`which docx2txt`" ]; then
      docx2txt < "$1"
    else
      echo "No docx2txt available"
    fi
    exit 0
    ;;

  *.odt) # OpenDocument Text Document (application/vnd.oasis.opendocument.text)
    # odt2txt can be provided by multiple packages (odt2txt or unoconv)
    # so figure out which package it comes from in order to figure out how to run it.
    if [ -x "`which pandoc`" ] ; then
      pandoc -t markdown "$1"
    elif [ -x "`which odt2txt`" ] &&
       ! odt2txt -V >/dev/null 2>&1    # Only unoconv version supports -V
    then
      odt2txt "$1"
    elif [ -x "`which unoconv`" ]; then
      # Requires a running instance of soffice
      unoconv --no-launch --format=txt --stdout "$1"
    else
      echo "No odt2txt or unoconv available"
    fi
    exit 0
    ;;

  *.ods) # OpenDocument Spreadsheet (application/vnd.oasis.opendocument.spreadsheet)
    if [ -x "`which unoconv`" ]; then
      # Requires a running instance of soffice
      unoconv --no-launch --format=csv --stdout "$1"
    elif [ -x "`which odt2txt`" ]; then
      # This just provides the text, but is better than nothing
      odt2txt  "$1"
    else
      echo "No odt2txt or unoconv available"
    fi
    exit 0
    ;;
esac

# Signal to lesspipe/lessfile that we couldn't handle the file
exit 1