// Copyright (C) 2014 The Syncthing Authors.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see <http://www.gnu.org/licenses/>.

// +build windows

package osutil

import "syscall"

func HideFile(path string) error {
	p, err := syscall.UTF16PtrFromString(path)
	if err != nil {
		return err
	}

	attrs, err := syscall.GetFileAttributes(p)
	if err != nil {
		return err
	}

	attrs |= syscall.FILE_ATTRIBUTE_HIDDEN
	return syscall.SetFileAttributes(p, attrs)
}

func ShowFile(path string) error {
	p, err := syscall.UTF16PtrFromString(path)
	if err != nil {
		return err
	}

	attrs, err := syscall.GetFileAttributes(p)
	if err != nil {
		return err
	}

	attrs &^= syscall.FILE_ATTRIBUTE_HIDDEN
	return syscall.SetFileAttributes(p, attrs)
}

func HideConsole() {
	getConsoleWindow := syscall.NewLazyDLL("kernel32.dll").NewProc("GetConsoleWindow")
	showWindow := syscall.NewLazyDLL("user32.dll").NewProc("ShowWindow")
	if getConsoleWindow.Find() == nil && showWindow.Find() == nil {
		hwnd, _, _ := getConsoleWindow.Call()
		if hwnd != 0 {
			showWindow.Call(hwnd, 0)
		}
	}
}