import { Observable , Subject } from 'rxjs' ; import { PropsWithType } from '../utils' ; import { XEvent , XEventPayload , XEventsTypes } from '../wiring/events.types' ; import { WireMetadata , WirePayload } from '../wiring/wiring.types' ; /**
 * The events bus that allows emitting and subscribing to  XEventsTypes .
 *
 *  public export interface XBus { param event emit ( event ) : void ; param event param payload param metadata - The  WireMetadata of the event.
      emit < Event extends XEvent > ( event , payload , metadata ? ) : void ; param event param withMetadata - When set to `true`, the returned observable payload will be a
     *  WirePayload .
     *  returns An Observable of  WirePayload object containing the event payload and the
     * event metadata.
      on < Event extends XEvent > ( event , withMetadata ) : Observable < WirePayload < XEventPayload < Event > > > ; param event param withMetadata returns on < Event extends XEvent > ( event , withMetadata ? ) : Observable < XEventPayload < Event > > ; param event param withMetadata returns If `withMetadata` is `true`, an Observable of  WirePayload object
     * containing the event payload and more metadata. If `withMetadata` is `false`, an Observable
     * of the Event payload.
      on < Event extends XEvent > ( event , withMetadata ) : Observable < XEventPayload < Event > | WirePayload < XEventPayload < Event > > > ; } /**
 * Type safe emitters dictionary, where each key is the  XEvent name,
 * and the value is a  https of the
 *  XEventPayload type.
 *
 *  public export type Emitters = { [ Event in XEvent ] ? : Emitter < Event > ; } ; typeParam Event - The  XEvent to extract its payload type.
 *  public export type Emitter < Event extends XEvent > = Subject < WirePayload < XEventPayload < Event > > > ;