package vaultview

import "git.julianfamily.org/keepassgo/internal/vault"

// HiddenRoot returns the single synthetic top-level vault group that should be
// treated as an internal storage root rather than as a user-visible group.
func HiddenRoot(model vault.Model) string {
	if len(model.EntriesInPath(nil)) != 0 {
		return ""
	}
	groups := model.ChildGroups(nil)
	roots := make([]string, 0, len(groups))
	for _, group := range groups {
		if group == "Recycle Bin" {
			continue
		}
		roots = append(roots, group)
	}
	if len(roots) != 1 {
		return ""
	}
	return roots[0]
}