)

// Target - lambda target interface
type Target interface {
	ID() TargetID
	IsActive() (bool, error)
	Send(Event) (*http.Response, error)
	Stat() TargetStat
	Close() error
}

// TargetStats is a collection of stats for multiple targets.
type TargetStats struct {
	TargetStats map[string]TargetStat
}

// TargetStat is the stats of a single target.
type TargetStat struct {
	ID             TargetID

	Save(Event) error
	SendFromStore(store.Key) error
	Close() error
	Store() TargetStore
}

// TargetStore is a shallow version of a target.Store
type TargetStore interface {
	Len() int
}

// Stats is a collection of stats for multiple targets.
type Stats struct {
	TotalEvents        int64 // Deprecated
	EventsSkipped      int64
	CurrentQueuedCalls int64 // Deprecated
	EventsErrorsTotal  int64 // Deprecated