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 hasGroup(model.Groups, []string{KeepassRoot}) {
		return KeepassRoot
	}
	if usesTopLevelRoot(model, KeepassRoot) {
		return KeepassRoot
	}
	return ""
}

func hasGroup(groups [][]string, path []string) bool {
	for _, group := range groups {
		if len(group) != len(path) {
			continue
		}
		match := true
		for i := range group {
			if group[i] != path[i] {
				match = false
				break
			}
		}
		if match {
			return true
		}
	}
	return false
}