import { INestApplication } from '@nestjs/common'
import { ConfigService } from '@nestjs/config'
import { MicroserviceOptions, Transport } from '@nestjs/microservices'
import { PROTO_PATHS } from '@teacinema/contracts'

export function setupGrpc(app: INestApplication, config: ConfigService) {
  const host = config.getOrThrow<string>('GRPC_HOST')
  const port = config.getOrThrow<string>('GRPC_PORT')
  const url = `${host}:${port}`

  app.connectMicroservice<MicroserviceOptions>({
    transport: Transport.GRPC,
    options: {
      url,
      package: ['movie.v1', 'category.v1'],
      protoPath: [PROTO_PATHS.MOVIE, PROTO_PATHS.CATEGORY],
      loader: {
        keepCase: false,
        longs: String,
        enums: String,
        defaults: true,
        oneofs: true
      }
    }
  })
}