settingsstate

type ChangeFactory interface {
	CreateObjectDeleteChange(id string, state *State, isSnapshot bool) (res []byte, err error)
	CreateSpaceDeleteChange(peerId string, state *State, isSnapshot bool) (res []byte, err error)
}

type ObjectDeletionState interface {
	AddObserver(observer StateUpdateObserver)
	Add(ids map[string]struct{})
	GetQueued() (ids []string)
	Delete(id string) (err error)
	Exists(id string) bool
	Filter(ids []string) (filtered []string)
}

type State struct {
	DeletedIds     map[string]struct{}
	DeleterId      string
	LastIteratedId string
}

type StateBuilder interface {
	Build(tree objecttree.ReadableObjectTree, state *State) (*State, error)
}

type StateUpdateObserver func(ids []string)