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

export const FULFILLMENT_STATUSES = ["NOT_FULFILLED", "PARTIALLY_FULFILLED", "FULFILLED"] as const;

export const BILLING_STATUSES = ["NOT_BILLED", "PARTIALLY_BILLED", "BILLED"] as const;

const builtins = (params: {
  companyType?: TailorAnyDBType;
  customerAccountType?: TailorAnyDBType;
  currencyType?: TailorAnyDBType;
}) => {
  const companyId = db.uuid().description("Foreign key to Company");
  const customerAccountId = db.uuid().description("Foreign key to CustomerAccount");
  const currencyId = db
    .uuid()
    .description("Transaction currency, which must be the company's base currency");
  return {
    companyId: params.companyType
      ? companyId.relation({
          type: "n-1",
          toward: { type: params.companyType, as: "company" },
          backward: "salesOrders",
        })
      : companyId,
    customerAccountId: params.customerAccountType
      ? customerAccountId.relation({
          type: "n-1",
          toward: { type: params.customerAccountType, as: "customerAccount" },
          backward: "salesOrders",
        })
      : customerAccountId,
    currencyId: params.currencyType
      ? currencyId.relation({
          type: "n-1",
          toward: { type: params.currencyType, as: "currency" },
          backward: "salesOrders",
        })
      : currencyId,
    orderStatus: db
      .enum(salesOrderLifecycle.states)
      .description("Sales-order document-control lifecycle status"),
    fulfillmentStatus: db
      .enum(FULFILLMENT_STATUSES, { optional: true })
      .description("Fulfillment progress derived from fulfilled quantities"),
    billingStatus: db
      .enum(BILLING_STATUSES, { optional: true })
      .description("Billing progress derived from billed quantities"),
    orderDate: db.date().description("Order date"),
    shippingAddress: db.string({ optional: true }).description("Shipping address"),
    billingAddress: db.string({ optional: true }).description("Billing address"),
    rejectionReason: db.string({ optional: true }).description("Latest rejection reason"),
    closeReason: db.string({ optional: true }).description("Close reason"),
  };
};

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

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

export function createSalesOrderType<const F extends Record<string, TailorAnyDBField>>(
  params: CreateSalesOrderTypeParams<F>,
) {
  return db
    .table("SalesOrder", {
      ...builtins(params),
      ...((params.fields ?? {}) as F),
      ...db.fields.timestamps(),
    })
    .permission(defaultPermission)
    .gqlPermission(defaultGqlPermission);
}

export const salesOrder = createSalesOrderType({});