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

export const ACCOUNT_RECEIVABLE_DOCUMENT_TYPES = ["INVOICE", "CREDIT_MEMO"] as const;

const builtins = (params: {
  companyType?: TailorAnyDBType;
  customerAccountType?: TailorAnyDBType;
  currencyType?: TailorAnyDBType;
  accountType?: TailorAnyDBType;
}) => {
  const companyId = db.uuid().description("Foreign key to Company");
  const customerAccountId = db.uuid().description("Foreign key to CustomerAccount");
  const currencyId = db.uuid().description("Foreign key to transaction Currency");
  const receivableControlAccountId = db.uuid().description("Foreign key to AR control Account");
  return {
    companyId: params.companyType
      ? companyId.relation({
          type: "n-1",
          toward: { type: params.companyType, as: "company" },
          backward: "accountReceivableDocuments",
        })
      : companyId,
    customerAccountId: params.customerAccountType
      ? customerAccountId.relation({
          type: "n-1",
          toward: { type: params.customerAccountType, as: "customerAccount" },
          backward: "accountReceivableDocuments",
        })
      : customerAccountId,
    currencyId: params.currencyType
      ? currencyId.relation({
          type: "n-1",
          toward: { type: params.currencyType, as: "currency" },
          backward: "accountReceivableDocuments",
        })
      : currencyId,
    receivableControlAccountId: params.accountType
      ? receivableControlAccountId.relation({
          type: "n-1",
          toward: { type: params.accountType, as: "receivableControlAccount" },
          backward: "accountReceivableDocuments",
        })
      : receivableControlAccountId,
    documentType: db.enum(ACCOUNT_RECEIVABLE_DOCUMENT_TYPES).description("AR document type"),
    correctionOfId: db
      .uuid({ optional: true })
      .relation({
        type: "n-1",
        toward: { type: "self" },
        backward: "correctionDocuments",
      })
      .description("Optional self-reference to the posted AR document being corrected"),
    documentNumber: db
      .string()
      .unique()
      .serial({ start: 1, maxValue: 99999999, format: "AR-%08d" })
      .description("System-generated AR invoice number"),
    externalDocumentNumber: db
      .string({ optional: true })
      .description("Optional external customer document number"),
    documentDate: db.date().description("Customer invoice date"),
    postingDate: db.date().description("Accounting posting date"),
    totalAmount: db.decimal().description("Invoice gross amount in transaction currency"),
    description: db.string({ optional: true }).description("Optional invoice description"),
    status: db
      .enum(accountReceivableDocumentLifecycle.states)
      .description("AR invoice lifecycle status"),
    registeredAt: db.datetime({ optional: true }).description("Timestamp when registered"),
    postedAt: db.datetime({ optional: true }).description("Timestamp when posted"),
    cancelledAt: db.datetime({ optional: true }).description("Timestamp when cancelled"),
  };
};

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

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

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

export const accountReceivableDocument = createAccountReceivableDocumentType({});