import { Knex } from 'knex';
import { Injectable } from '@nestjs/common';
import { ItemsEntriesService } from '../Items/ItemsEntries.service';
import { ModelObject } from 'objection';
import { SaleInvoice } from './models/SaleInvoice';

@Injectable()
export class InvoiceInventoryTransactions {
  constructor(
    private readonly itemsEntriesService: ItemsEntriesService,
    // private readonly inventoryService: InventoryService,
  ) {}

  /**
   * Records the inventory transactions of the given sale invoice in case
   * the invoice has inventory entries only.
   *
   * @param {number} tenantId - Tenant id.
   * @param {SaleInvoice} saleInvoice - Sale invoice DTO.
   * @param {number} saleInvoiceId - Sale invoice id.
   * @param {boolean} override - Allow to override old transactions.
   * @return {Promise<void>}
   */
  public async recordInventoryTranscactions(
    saleInvoice: ModelObject<SaleInvoice>,
    override?: boolean,
    trx?: Knex.Transaction,
): Promise<void> {
    // Loads the inventory items entries of the given sale invoice.
    const inventoryEntries =
      await this.itemsEntriesService.filterInventoryEntries(
        saleInvoice.entries,
        trx,
      );
    const transaction = {
      transactionId: saleInvoice.id,
      transactionType: 'SaleInvoice',
      transactionNumber: saleInvoice.invoiceNo,

      exchangeRate: saleInvoice.exchangeRate,
      warehouseId: saleInvoice.warehouseId,

      date: saleInvoice.invoiceDate,
      direction: 'OUT',
      entries: inventoryEntries,
      createdAt: saleInvoice.createdAt,
    };
    // await this.inventoryService.recordInventoryTransactionsFromItemsEntries(
    //     transaction,
    //     override,
    //     trx,
    //   );
  }
  /**
   * Reverting the inventory transactions once the invoice deleted.
   * @param {number} tenantId - Tenant id.
   * @param {number} billId - Bill id.
   * @return {Promise<void>}
   */
  public async revertInventoryTransactions(
    tenantId: number,
    saleInvoiceId: number,
    trx?: Knex.Transaction,
  ): Promise<void> {
    // Delete the inventory transaction of the given sale invoice.
    // const { oldInventoryTransactions } =
    //   await this.inventoryService.deleteInventoryTransactions(
    //     saleInvoiceId,
    //     'SaleInvoice',
    //     trx,
    //   );
  }
}