package options import ( "time" ) type NamePublishSettings struct { ValidTime time.Duration Key string } type NameResolveSettings struct { Recursive bool Local bool Nocache bool } type NamePublishOption func(*NamePublishSettings) error type NameResolveOption func(*NameResolveSettings) error func NamePublishOptions(opts ...NamePublishOption) (*NamePublishSettings, error) { options := &NamePublishSettings{ ValidTime: 24 * time.Hour, Key: "self", } for _, opt := range opts { err := opt(options) if err != nil { return nil, err } } return options, nil } func NameResolveOptions(opts ...NameResolveOption) (*NameResolveSettings, error) { options := &NameResolveSettings{ Recursive: false, Local: false, Nocache: false, } for _, opt := range opts { err := opt(options) if err != nil { return nil, err } } return options, nil } type NameOptions struct{} func (api *NameOptions) WithValidTime(validTime time.Duration) NamePublishOption { return func(settings *NamePublishSettings) error { settings.ValidTime = validTime return nil } } func (api *NameOptions) WithKey(key string) NamePublishOption { return func(settings *NamePublishSettings) error { settings.Key = key return nil } } func (api *NameOptions) WithRecursive(recursive bool) NameResolveOption { return func(settings *NameResolveSettings) error { settings.Recursive = recursive return nil } } func (api *NameOptions) WithLocal(local bool) NameResolveOption { return func(settings *NameResolveSettings) error { settings.Local = local return nil } } func (api *NameOptions) WithNoCache(nocache bool) NameResolveOption { return func(settings *NameResolveSettings) error { settings.Nocache = nocache return nil } }