import { createContext, DomainError } from "@tailor-platform/erp-kit/app";
import { createResolver, t } from "@tailor-platform/sdk";
import { getDB } from "@/generated/kysely-tailordb";
import { arModulesExport } from "@/modules";

/**
 * postAccountReceivableDocument — post a REGISTERED customer invoice to the
 * general ledger.
 *
 * The native command builds a balanced JournalEntry from the invoice's
 * distribution lines and the receivable control account (an INVOICE debits the
 * receivable control account and credits the distribution/revenue accounts; a
 * CREDIT_MEMO reverses it), posts it directly in financial-accounting under
 * sourceDocumentType SALES_INVOICE, and moves the AR document REGISTERED ->
 * POSTED in the same transaction. Posting requires the document currency to
 * equal the company's base currency. `id` is the AccountReceivableDocument id.
 * This is the AR mirror of `postAccountPayableDocument`.
 */
export default createResolver({
  name: "postAccountReceivableDocument",
  operation: "mutation",
  input: {
    id: t.string().description("Account receivable document ID"),
  },
  body: async (context) => {
    const ctx = createContext(context);
    const db = getDB("main-db");
    return db
      .transaction()
      .execute(async (trx) => {
        const result = await arModulesExport.commands.postAccountReceivableDocument(
          trx,
          { id: context.input.id },
          ctx,
        );

        if (!result.ok) {
          switch (result.error.code) {
            case "ACCOUNT_RECEIVABLE_DOCUMENT_NOT_FOUND":
              throw new DomainError(`Account receivable document not found: ${context.input.id}`);
            case "ACCOUNT_RECEIVABLE_INVALID_DOCUMENT_STATUS":
              throw new DomainError(`Only REGISTERED invoices can be posted: ${context.input.id}`);
            case "ACCOUNT_RECEIVABLE_POSTING_CURRENCY_MISMATCH":
              throw new DomainError(
                `The invoice currency must equal the company base currency to post.`,
              );
            case "ACCOUNT_RECEIVABLE_ACCOUNTING_PERIOD_NOT_FOUND":
              throw new DomainError(`No accounting period covers the invoice posting date.`);
            case "ACCOUNT_RECEIVABLE_LINE_TOTAL_MISMATCH":
              throw new DomainError(
                `Line/distribution totals do not reconcile with the document total.`,
              );
            case "ACCOUNT_RECEIVABLE_MINIMUM_LINES_NOT_MET":
              throw new DomainError(
                `The invoice must have at least one line with one distribution.`,
              );
            case "ACCOUNT_RECEIVABLE_ACCOUNT_NOT_FOUND":
              throw new DomainError(`A referenced GL account does not exist.`);
            case "ACCOUNT_RECEIVABLE_ACCOUNT_INACTIVE":
              throw new DomainError(`A referenced GL account is not ACTIVE.`);
            case "ACCOUNT_RECEIVABLE_COMPANY_NOT_FOUND":
              throw new DomainError(`The invoice company does not exist.`);
            case "ACCOUNT_RECEIVABLE_JOURNAL_ENTRY_CREATE_FAILED":
              throw new DomainError(`Failed to create the journal entry for this invoice.`);
            case "ACCOUNT_RECEIVABLE_JOURNAL_ENTRY_POST_FAILED":
              throw new DomainError(`Failed to post the journal entry for this invoice.`);
            case "UNAUTHENTICATED":
              throw new DomainError("Authentication is required");
            case "INSUFFICIENT_PERMISSION":
              throw new DomainError("You do not have permission to perform this action");
            default:
              throw result.error satisfies never;
          }
        }

        return {
          id: result.value.accountReceivableDocument.id,
          status: result.value.accountReceivableDocument.status,
        };
      })
      .catch((err: unknown) => {
        if (err instanceof DomainError) throw err;
        throw new Error("Failed to post the account receivable document", { cause: err });
      });
  },
  output: t
    .object({
      id: t.string().description("Account receivable document ID"),
      status: t.string().description("New document status (POSTED)"),
    })
    .description("PostAccountReceivableDocument response"),
});