import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { Repository } from 'typeorm';

import { Invoice } from './entities/invoice.entity';

@Injectable()
export class BillingService {
  constructor(
    @InjectRepository(Invoice)
    private readonly invoicesRepository: Repository<Invoice>,
  ) {}

  /** List every invoice (most recent first). */
  findAll(): Promise<Invoice[]> {
    return this.invoicesRepository.find({ order: { issuedAt: 'DESC' } });
  }

  /** List invoices for a given booking. */
  findByBooking(bookingId: string): Promise<Invoice[]> {
    return this.invoicesRepository.find({ where: { bookingId }, order: { issuedAt: 'DESC' } });
  }
}