import { err, ok, type CommandContext } from "@tailor-platform/erp-kit/core";
import { updateDetails } from "../domain/businessPartner";
import type { Transaction } from "../generated/kysely-tailordb";
import { PartnerNotFoundError } from "../lib/errors.generated";
import {
  createBusinessPartnerRepository,
  type BusinessPartnerRepository,
} from "../repository/businessPartnerRepository";

export type UpdatePartnerInput = { id: string; name?: string };

export async function run<CF extends Record<string, unknown>>(
  db: Transaction,
  input: UpdatePartnerInput & Omit<Partial<CF>, "status" | "type">,
  _ctx: CommandContext,
  repositoryFactory: (
    db: Transaction,
  ) => BusinessPartnerRepository = createBusinessPartnerRepository,
) {
  const { id, name, ...customFieldPatch } = input;
  const repository = repositoryFactory(db);
  const partner = await repository.findById(id, { forUpdate: true });
  if (!partner) return err(new PartnerNotFoundError(id));

  const updated = updateDetails(partner, {
    name,
    customFields: { ...partner.header.customFields, ...customFieldPatch },
  });
  if (!updated.ok) return updated;
  await repository.save(updated.value);
  return ok({ partnerId: updated.value.id });
}