import { EventMetadata , ServiceMetadata } from "../metadata" ; import { EventAdapter } from "../types" ; export function Event ( source , resource , actionFilter , objectFilter , adapter , permission ? ) { return function ( type , propertyKey , descriptor ) { let route = `${ source } ${ resource }` ; actionFilter = actionFilter === true ? propertyKey : actionFilter ; let eventMetadata = { route , service : undefined , method : propertyKey , source , resource , actionFilter : actionFilter || "*" , objectFilter : objectFilter || "*" , adapter } ; let metadata = ServiceMetadata . get ( type ) ; metadata . eventMetadata [ route ] = metadata . eventMetadata [ route ] || [ ] ; metadata . eventMetadata [ route ] . push ( eventMetadata ) ; if ( permission && ( ! metadata . permissions || ! metadata . permissions [ propertyKey ] ) ) { permission ( ) ( type , propertyKey , descriptor ) ; } } ; }