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

const builtins = {
  bankAccountId: db
    .uuid()
    .relation({
      type: "n-1",
      toward: { type: bankAccount, as: "bankAccount" },
      backward: "bankStatements",
    })
    .description("Foreign key to BankAccount"),
  statementNumber: db.string().description("Bank-provided statement identifier"),
  statementDate: db.date().description("Statement date"),
  openingBalance: db.decimal().description("Opening statement balance"),
  closingBalance: db.decimal().description("Closing statement balance"),
  importedAt: db.datetime().description("Timestamp when the statement was imported"),
};

type ReservedFields = keyof typeof builtins | CommonReservedFields;

export interface CreateBankStatementTypeParams<F extends Record<string, TailorAnyDBField>> {
  fields?: NoReservedFields<F, ReservedFields>;
}

export function createBankStatementType<const F extends Record<string, TailorAnyDBField>>(
  params: CreateBankStatementTypeParams<F>,
) {
  return db
    .table("BankStatement", {
      ...builtins,
      ...((params.fields ?? {}) as F),
      ...db.fields.timestamps(),
    })
    .indexes({
      fields: ["bankAccountId", "statementNumber"],
      unique: true,
      name: "bank_statement_account_number_uq",
    })
    .permission(defaultPermission)
    .gqlPermission(defaultGqlPermission);
}

export const bankStatement = createBankStatementType({});