import {
  AggregateID,
  IdResponse,
  RpcExceptionCode,
  RpcValidationPipe,
} from '@mobicoop/ddd-library';
import { Controller, UsePipes } from '@nestjs/common';
import { CommandBus } from '@nestjs/cqrs';
import { GrpcMethod, RpcException } from '@nestjs/microservices';
import { UsernameAlreadyExistsException } from '@modules/authentication/core/domain/authentication.errors';
import { AddUsernameRequestDto } from './dtos/add-username.request.dto';
import { AddUsernameCommand } from '@modules/authentication/core/application/commands/add-username/add-username.command';

@UsePipes(
  new RpcValidationPipe({
    whitelist: true,
    forbidUnknownValues: false,
  }),
)
@Controller()
export class AddUsernameGrpcController {
  constructor(private readonly commandBus: CommandBus) {}

  @GrpcMethod('AuthenticationService', 'AddUsername')
  async addUsername(data: AddUsernameRequestDto): Promise<IdResponse> {
    try {
      const aggregateID: AggregateID = await this.commandBus.execute(
        new AddUsernameCommand({
          userId: data.userId,
          username: {
            name: data.name,
            type: data.type,
          },
        }),
      );
      return new IdResponse(aggregateID);
    } catch (error: any) {
      if (error instanceof UsernameAlreadyExistsException)
        throw new RpcException({
          code: RpcExceptionCode.ALREADY_EXISTS,
          message: error.message,
        });
      throw new RpcException({
        code: RpcExceptionCode.UNKNOWN,
        message: error.message,
      });
    }
  }
}