application-config.ts

import * as optional from 'optional';
import {
  PipeTransform,
  WebSocketAdapter,
  ExceptionFilter,
  NestInterceptor,
  CanActivate,
} from '@nestjs/common';
import { ConfigurationProvider } from '@nestjs/common/interfaces/configuration-provider.interface';

export class ApplicationConfig implements ConfigurationProvider {
  private globalPipes: PipeTransform<any>[] = [];
  private globalFilters: ExceptionFilter[] = [];
  private globalInterceptors: NestInterceptor[] = [];
  private globalGuards: CanActivate[] = [];
  private globalPrefix = '';

  constructor(private ioAdapter: WebSocketAdapter | null = null) {}

  public setGlobalPrefix(prefix: string) {
    this.globalPrefix = prefix;
  }

  public getGlobalPrefix() {
    return this.globalPrefix;
  }

  public setIoAdapter(ioAdapter: WebSocketAdapter) {
    this.ioAdapter = ioAdapter;
  }

  public getIoAdapter(): WebSocketAdapter {
    return this.ioAdapter;
  }

  public useGlobalPipes(...pipes: PipeTransform<any>[]) {
    this.globalPipes = pipes;
  }

  public getGlobalFilters(): ExceptionFilter[] {
    return this.globalFilters;
  }

  public useGlobalFilters(...filters: ExceptionFilter[]) {
    this.globalFilters = filters;
  }

  public getGlobalPipes(): PipeTransform<any>[] {
    return this.globalPipes;
  }

  public getGlobalInterceptors(): NestInterceptor[] {
    return this.globalInterceptors;
  }

  public useGlobalInterceptors(...interceptors: NestInterceptor[]) {
    this.globalInterceptors = interceptors;
  }

  public getGlobalGuards(): CanActivate[] {
    return this.globalGuards;
  }

  public useGlobalGuards(...guards: CanActivate[]) {
    this.globalGuards = guards;
  }
}