import { err, ok, type CommandContext } from "@tailor-platform/erp-kit/core";
import { reject } from "../domain/purchaseOrder";
import type { Transaction } from "../generated/kysely-tailordb";
import { PurchaseOrderNotFoundError } from "../lib/errors.generated";
import {
  createPurchaseOrderRepository,
  type PurchaseOrderRepository,
} from "../repository/purchaseOrderRepository";

export interface RejectPurchaseOrderInput {
  id: string;
  reason: string;
}

export async function run(
  db: Transaction,
  input: RejectPurchaseOrderInput,
  ctx: CommandContext,
  repositoryFactory: (db: Transaction) => PurchaseOrderRepository = createPurchaseOrderRepository,
) {
  void ctx;

  const repository = repositoryFactory(db);
  const order = await repository.findById(input.id, { forUpdate: true });
  if (!order) {
    return err(new PurchaseOrderNotFoundError(input.id));
  }

  const rejected = reject(order, input.reason);
  if (!rejected.ok) {
    return rejected;
  }

  await repository.save(rejected.value);
  return ok({ purchaseOrderId: rejected.value.id });
}