refactor: refactor future event list

src/tbank/moex.client.ts

@@ -3,11 +3,6 @@ import { Injectable, ServiceUnavailableException } from '@nestjs/common';
 const baseUrl = 'https://iss.moex.com/iss';
 const timeoutMs = 10_000;
 
-export type MoexDividend = {
-  date: string;
-  value: string;
-  currency: string;
-};
 export type MoexBondEvent =
   | { type: 'coupon'; date: string; value: string; currency: string }
   | { type: 'maturity'; date: string; value: string; currency: string }
@@ -18,19 +13,6 @@ type IssResponse = Record<string, IssBlock | undefined>;
 
 @Injectable()
 export class MoexClient {
-  async dividends(secid: string): Promise<MoexDividend[]> {
-    const rows = await this.rows(
-      `securities/${encodeURIComponent(secid)}/dividends.json`,
-      'dividends',
-    );
-    return rows.flatMap((row) => {
-      const date = text(row.registryclosedate);
-      const value = numberText(row.value);
-      const currency = currencyText(row.currencyid);
-      return date && value && currency ? [{ date, value, currency }] : [];
-    });
-  }
-
   async bondEvents(secid: string): Promise<MoexBondEvent[]> {
     const path = `securities/${encodeURIComponent(secid)}/bondization.json`;
     const [coupons, offers, description] = await Promise.all([
@@ -122,7 +104,8 @@ export class MoexClient {
 }
 
 function parseRows(block: IssBlock | undefined): Record<string, unknown>[] {
-  if (!Array.isArray(block?.columns) || !Array.isArray(block.data))
+  if (!block) return [];
+  if (!Array.isArray(block.columns) || !Array.isArray(block.data))
     throw new ServiceUnavailableException({ code: 'MOEX_UNAVAILABLE' });
   const columns = block.columns;
   if (!columns.every((column) => typeof column === 'string'))