via-open

#!/bin/bash

system="$OSTYPE"

exec &> /dev/null

while read -r arg; do
  # first try matching by filename or pathname

  case "${arg,,}" in
    w\ *)
      target=$(echo "$arg"|cut -d ' ' -f 3-)
      wmctrl -a "$target"
      ;;
    http*)
      $BROWSER "$arg" &
      ;;
    [^/]*) # doesn't start with '/'
      sh -c "$arg"
      ;;
    *.txt)
      $TERMINAL $EDITOR "$arg" &
      ;;
    *.pdf | *.epub)
      mupdf "$arg" &
      ;;
    *.mp3)
      $TERMINAL mpg123 -opulse "$arg" &
      ;;
    *.od[tsp]|*.doc|*.docx|*.ppt|*.pptx|*.xls|*.xlsx)
      libreoffice "$arg" &
      ;;
    *)
      # then try matching by mimetype
      mimetype=$(file -Lb --mime-type "$arg")
      printf "%s" $mimetype
      case "$mimetype" in
        text/html)
          $BROWSER "$arg" &
          ;;
        text/* | inode/x-empty | message/rfc822)
          $TERMINAL $EDITOR "$arg" &
          ;;
        inode/directory)
          case "$system" in
            "darwin*") open "$arg" ;;
            "linux*") 
              cd "$arg"
              $TERMINAL &
              cd -
              ;;
          esac
          ;;
        image/*)
          sxiv "$arg" &
          ;;
        *)
          case "$system" in
            "darwin*") open "$arg" ;;
            "linux*") xdg-open "$arg" ;;
            *) exit 1 ;;
          esac
          ;;
      esac
      ;;
  esac
done