package qr

import (
	"log"
	"os"
	"os/exec"
	"path/filepath"

	"github.com/skip2/go-qrcode"
)

// RenderString as a QR code
func RenderString(s string) {
	dir, err1 := filepath.Abs(filepath.Dir(os.Args[0]))
	if err1 != nil {
		log.Fatal(err1)
	}
	err2 := qrcode.WriteFile(s, qrcode.Medium, 200, dir+"/tmp.png")
	if err2 != nil {
		panic(err2)
	}
	cmd := exec.Command("rundll32.exe", "url.dll,FileProtocolHandler", dir+"/tmp.png")
	cmd.Start()
}