import { HandlebarsModule } from '@gboutte/nestjs-hbs';
import { DynamicModule, Global, Inject, Module } from '@nestjs/common';
import { ConfigModule } from '@nestjs/config';
import { BrowserService } from './browser.service';
import { PdfParameters } from './pdf-parameters.interface';
import { PdfService } from './pdf.service';

@Global()
@Module({
  imports: [],
  providers: [PdfService, BrowserService],
  exports: [PdfService],
})
export class PdfModule {
  constructor(
    private browserService: BrowserService,
    @Inject('PDF_PARAMETERS') pdfParams: PdfParameters,
  ) {
    browserService.install(
      pdfParams.useLockedBrowser !== undefined
        ? pdfParams.useLockedBrowser
        : false,
    );
  }

  static forRoot(pdfParameters: PdfParameters): DynamicModule {
    let hbsOptions;
    if (pdfParameters.hbsOptions === undefined) {
      hbsOptions = {};
    } else {
      hbsOptions = pdfParameters.hbsOptions;
    }

    return {
      module: PdfModule,
      providers: [
        {
          provide: 'PDF_PARAMETERS',
          useValue: pdfParameters,
        },
      ],
      imports: [HandlebarsModule.forRoot(hbsOptions), ConfigModule.forRoot()],
    };
  }
}