import { randomUUID } from "node:crypto";
import { type createGraphQLClient, graphql } from "./graphql-client";

const createPartner = graphql(`
  mutation CreateTestPartner($name: String!, $type: String!) {
    createBusinessPartner(name: $name, type: $type) {
      id
    }
  }
`);
const createSupplier = graphql(`
  mutation CreateTestSupplier(
    $partnerId: String!
    $companyId: String!
    $code: String!
    $name: String!
  ) {
    createSupplierAccount(partnerId: $partnerId, companyId: $companyId, code: $code, name: $name) {
      id
    }
  }
`);
const createCustomer = graphql(`
  mutation CreateTestCustomer(
    $partnerId: String!
    $companyId: String!
    $code: String!
    $name: String!
  ) {
    createCustomerAccount(partnerId: $partnerId, companyId: $companyId, code: $code, name: $name) {
      id
    }
  }
`);

/** Creates an isolated account; the returned ID is never a BusinessPartner ID. */
export async function createTestPartnerAccount(
  client: ReturnType<typeof createGraphQLClient>,
  input: { name: string; type: string; companyId: string; role: "SUPPLIER" | "CUSTOMER" },
): Promise<{ id: string; partnerId: string }> {
  const partner = await client
    .mutation(createPartner, { name: input.name, type: input.type })
    .toPromise();
  if (!partner.data) throw new Error("Test partner creation returned no data");
  const accountInput = {
    partnerId: partner.data.createBusinessPartner.id,
    companyId: input.companyId,
    code: randomUUID(),
    name: input.name,
  };
  if (input.role === "SUPPLIER") {
    const result = await client.mutation(createSupplier, accountInput).toPromise();
    if (!result.data) throw new Error("Test supplier account creation returned no data");
    return { ...result.data.createSupplierAccount, partnerId: accountInput.partnerId };
  }
  const result = await client.mutation(createCustomer, accountInput).toPromise();
  if (!result.data) throw new Error("Test customer account creation returned no data");
  return { ...result.data.createCustomerAccount, partnerId: accountInput.partnerId };
}