//go:build windows
// +build windows

package ganserv

import (
	"fmt"
	"os"
	"syscall"

	"golang.org/x/sys/windows"
)

//Use admin permission to read auth token on Windows
func readAuthTokenAsAdmin() (string, error) {
	verb := "runas"
	exe, _ := os.Executable()
	cwd, _ := os.Getwd()

	authTokenPath := "C:\\ProgramData\\ZeroTier\\One\\authtoken.secret"
	args := fmt.Sprintf("cmd /C type %s", authTokenPath)

	verbPtr, _ := syscall.UTF16PtrFromString(verb)
	exePtr, _ := syscall.UTF16PtrFromString(exe)
	cwdPtr, _ := syscall.UTF16PtrFromString(cwd)
	argPtr, _ := syscall.UTF16PtrFromString(args)

	var showCmd int32 = 1 //SW_NORMAL

	err := windows.ShellExecute(0, verbPtr, exePtr, argPtr, cwdPtr, showCmd)
	if err != nil {
		return "", err
	}

	return "", nil
}

//Check if admin on Windows
func isAdmin() bool {
	_, err := os.Open("\\\\.\\PHYSICALDRIVE0")
	if err != nil {
		return false
	}
	return true
}