import { DynamicModule, Module } from '@nestjs/common';
import { HttpModule } from '@nestjs/axios';
import { ClientsModule, Transport } from '@nestjs/microservices';
import { NotificationsController } from './notifications.controller';
import { NotificationsService } from './notifications.service';
import { EmailAdapter, SmsAdapter, PushAdapter } from './notification.adapters';
import { EmailClientService } from './email-client.service';
import { SmsClientService } from './sms-client.service';

@Module({
  imports: [
    HttpModule.register({ timeout: 10_000 }),
    ClientsModule.register([
      {
        name: 'SMS_SERVICE',
        transport: Transport.RMQ,
        options: {
          urls: [process.env.RABBITMQ_URL as string],
          queue: 'sms_queue',
          queueOptions: { durable: true },
        },
      },
      {
        name: 'EMAIL_SERVICE',
        transport: Transport.RMQ,
        options: {
          urls: [process.env.RABBITMQ_URL as string],
          queue: 'email_queue',
          queueOptions: { durable: true },
        },
      },
      {
        name: 'NOTIFICATION_SERVICE',
        transport: Transport.RMQ,
        options: {
          urls: [process.env.RABBITMQ_URL as string],
          queue: 'notification_queue',
          queueOptions: { durable: true },
        },
      },
    }),
  },
]);

@Module({})
export class NotificationsModule {
  static register(): DynamicModule {
    const rmqEnabled = process.env.RABBITMQ_ENABLED !== 'false';

    return {
      module: NotificationsModule,
      imports: [
        HttpModule.register({ timeout: 10_000 }),
        ...(rmqEnabled ? [rmqClientsModule] : []),
      ],
      controllers: [NotificationsController],
      providers: [
        NotificationsService,
        EmailAdapter,
        SmsAdapter,
        PushAdapter,
        ...(rmqEnabled
          ? [EmailClientService, SmsClientService]
          : [
              { provide: 'EMAIL_SERVICE', useValue: null },
              { provide: 'SMS_SERVICE', useValue: null },
              EmailClientService,
              SmsClientService,
            ]),
      ],
      exports: [NotificationsService, EmailClientService, SmsClientService],
    };
  }
}