import {
  type CommonReservedFields,
  type NoReservedFields,
  defaultGqlPermission,
  defaultPermission,
} from "@tailor-platform/erp-kit/core";
import { db, type TailorAnyDBField, type TailorAnyDBType } from "@tailor-platform/sdk";
import { businessPartner } from "./businessPartner";
import { supplierAccountLifecycle } from "./supplierAccount.lifecycle.generated";

const builtins = (params: {
  companyType?: TailorAnyDBType;
  currencyType?: TailorAnyDBType;
  accountType?: TailorAnyDBType;
}) => {
  const companyId = db.uuid().description("Foreign key to Company");
  const preferredCurrencyId = db
    .uuid({ optional: true })
    .description("Optional preferred transaction currency");
  const defaultExpenseAccountId = db
    .uuid({ optional: true })
    .description("Default expense account for non-PO supplier invoices");
  return {
    partnerId: db
      .uuid()
      .relation({
        type: "n-1",
        toward: { type: businessPartner, as: "partner" },
        backward: "supplierAccounts",
      })
      .description("Foreign key to BusinessPartner"),
    companyId: params.companyType
      ? companyId.relation({
          type: "n-1",
          toward: { type: params.companyType, as: "company" },
          backward: "supplierAccounts",
        })
      : companyId,
    code: db.string().description("Supplier account code unique within the company"),
    name: db.string().description("Supplier account display name"),
    preferredCurrencyId: params.currencyType
      ? preferredCurrencyId.relation({
          type: "n-1",
          toward: { type: params.currencyType, as: "preferredCurrency" },
          backward: "preferredSupplierAccounts",
        })
      : preferredCurrencyId,
    defaultExpenseAccountId: params.accountType
      ? defaultExpenseAccountId.relation({
          type: "n-1",
          toward: { type: params.accountType, as: "defaultExpenseAccount" },
          backward: "defaultExpenseSupplierAccounts",
        })
      : defaultExpenseAccountId,
    status: db.enum(supplierAccountLifecycle.states).description("Lifecycle status"),
  };
};

type ReservedFields = keyof ReturnType<typeof builtins> | CommonReservedFields;

export interface CreateSupplierAccountTypeParams<F extends Record<string, TailorAnyDBField>> {
  fields?: NoReservedFields<F, ReservedFields>;
  companyType?: TailorAnyDBType;
  currencyType?: TailorAnyDBType;
  accountType?: TailorAnyDBType;
}

export function createSupplierAccountType<const F extends Record<string, TailorAnyDBField>>(
  params: CreateSupplierAccountTypeParams<F>,
) {
  return db
    .table("SupplierAccount", {
      ...builtins(params),
      ...((params.fields ?? {}) as F),
      ...db.fields.timestamps(),
    })
    .indexes({
      fields: ["companyId", "code"],
      unique: true,
      name: "supplier_account_company_code_unique_idx",
    })
    .permission({ ...defaultPermission, delete: [] })
    .gqlPermission(defaultGqlPermission);
}

export const supplierAccount = createSupplierAccountType({});