#!/usr/bin/bash

[[ -z "$PDFS" ]] && echo 'PDFS dir path not set' && exit 1

list() {
  find "$PDFS" -name "*.pdf" -exec basename {} \;
}

usage() {
  echo 'usage: list|usage|<pdf>'
}

if test -n "$COMP_LINE"; then
  prefix=$(echo "$COMP_LINE" | cut -d " " -f 2)
  list | grep ^$prefix
  exit 0
fi

case "$1" in
  list) list; exit ;;
  usage) usage; exit ;;
esac

# actually we have a pdf name, not a command
# if gotten this far
pdfpath="$PDFS/$1"

# always open using GL in dark (inverted) mode
if [ -r "$pdfpath" ];then
  #mupdf-gl -I "$pdfpath"  &>/dev/null &
  open "$pdfpath"
fi