import { ValidationPipe, VersioningType } from '@nestjs/common';
import { NestFactory } from '@nestjs/core';
import type { NestExpressApplication } from '@nestjs/platform-express';
import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
import { AppModule } from './app.module';

export const API_JSON_BODY_LIMIT = '2mb';

export async function createApp(): Promise<NestExpressApplication> {
  const app = await NestFactory.create<NestExpressApplication>(AppModule, {
    bufferLogs: true,
    bodyParser: false,
  });

  // Upload finalize requests can include base64 artwork payloads.
  app.useBodyParser('json', { limit: API_JSON_BODY_LIMIT });
  app.useBodyParser('urlencoded', {
    extended: true,
    limit: API_JSON_BODY_LIMIT,
  });

  app.setGlobalPrefix('api');
  app.enableVersioning({
    type: VersioningType.URI,
  });
  app.useGlobalPipes(
    new ValidationPipe({
      whitelist: true,
      forbidNonWhitelisted: true,
      transform: true,
    }),
  );

  const document = SwaggerModule.createDocument(
    app,
    new DocumentBuilder()
      .setTitle('Velody API')
      .setDescription('Velody Phase 1 foundation API')
      .setVersion('1.0.0')
      .addBearerAuth(
        {
          type: 'http',
          scheme: 'bearer',
          bearerFormat: 'Bearer',
          description: 'Device access token',
        },
        'bearer',
      )
      .build(),
  );

  SwaggerModule.setup('api/docs', app, document, {
    jsonDocumentUrl: 'api/docs-json',
  });

  return app;
}