import { EventsHandler, IEventHandler } from '@nestjs/cqrs';
import { TransactionDataService } from 'src/modules/transaction/transaction/data/services/transaction-data.service';
import { TransactionChangeStatusEvent } from 'src/modules/transaction/transaction/domain/entities/event/transaction-change-status.event';
import { CouchService } from '../../data/services/couch.service';
import { STATUS } from 'src/core/strings/constants/base.constants';
import { TransactionPaymentType } from 'src/modules/transaction/transaction/constants';
import { mappingTransaction } from 'src/modules/transaction/transaction/domain/usecases/managers/helpers/mapping-transaction.helper';
import { TransactionDeletedEvent } from 'src/modules/transaction/transaction/domain/entities/event/transaction-deleted.event';
import { TransactionUpdatedEvent } from 'src/modules/transaction/transaction/domain/entities/event/transaction-updated.event';

@EventsHandler(TransactionDeletedEvent)
export class BookingDeletedEvent
  implements IEventHandler<TransactionDeletedEvent>
{
  constructor(private couchService: CouchService) {}

  async handle(event: TransactionDeletedEvent) {
    await this.couchService.deleteDoc(
      {
        _id: event.data.id,
        ...event.data.data,
      },
      'item',
    );
  }
}

@EventsHandler(TransactionChangeStatusEvent, TransactionUpdatedEvent)
export class BookingHandler
  implements IEventHandler<TransactionChangeStatusEvent>
{
  constructor(
    private bookingService: TransactionDataService,
    private couchService: CouchService,
  ) {}

  async handle(event: TransactionChangeStatusEvent) {
    const old_data = event.data.old;
    const data = event.data.data;

    if (data.payment_type != TransactionPaymentType.COUNTER) return;

    const booking = await this.bookingService.getOneByOptions({
      where: {
        id: data.id,
      },
      relations: ['items'],
    });

    mappingTransaction(booking);

    if (
      old_data?.status != data.status &&
      [STATUS.PENDING, STATUS.ACTIVE].includes(data.status)
    ) {
      await this.couchService.createDoc(
        {
          _id: booking.id,
          ...booking,
        },
        'booking',
      );
    } else {
      await this.couchService.updateDoc(
        {
          _id: booking.id,
          ...booking,
        },
        'booking',
      );
    }
  }
}