#!/bin/bash

while getopts "c" flag 2>/dev/null; do
  case "${flag}" in
  c)
    from_clipboard=true
    ;;
  *)
    printf "[ERROR] Invalid flag: %s\n\n" "${flag}"
    help
    ;;
  esac
done

shift $((OPTIND - 1))

if [[ ! ${from_clipboard} ]]; then
  qr_content=$(kdialog --title "QR Code Generator" --inputbox "Enter QR Code contents:")
else
  qr_content="$(wl-paste)"
fi

if [[ -z "${qr_content}" ]]; then
  printf 'No QR Code contents defined!\n'
  exit 1
fi

qrencode -s 12 -o - "${qr_content}" | wl-copy

wl-paste | feh -Z -