import { ConfigService } from "./module" ; export function applyParamsMetadataDecorator ( paramsMetadata , args , fn ) { if ( paramsMetadata . length ) { for ( const param of paramsMetadata ) { if ( Object . keys ( param ) . includes ( 'configKey' ) ) { const i = param . parameterIndex ; if ( args [ i ] instanceof ConfigService || args [ i ] === ConfigService ) { args [ param . parameterIndex ] = args [ i ] . get ( param . configKey , param . fallback ) ; } else if ( args [ i ] === undefined ) { args [ param . parameterIndex ] = fn ( param . configKey , param . fallback ) ; } } } } return args ; }