refactor: simplify investment data flow

2026-10-02 08:12:02 +03:00
parent 99de4af678
commit 1be6db65d7
3 changed files with 71 additions and 65 deletions
@@ -0,0 +1,68 @@
+import {
+  decimalFromString,
+  formatDecimal,
+  multiply,
+} from '../../../common/decimal';
+import { ISO_DATE_LENGTH, ISO_DATE_START, MILLISECONDS_PER_SECOND } from '../../../common/time';
+import type { MoexBondEvent } from '../../../integrations/moex/moex.api';
+import { decimal } from '../../../integrations/tbank/decimal';
+import type { TbankDividend } from '../../../integrations/tbank/tbank.api';
+import { UpcomingEventDto } from './upcoming-events.dto';
+
+export function dividendEvent(
+  metadata: Pick<
+    UpcomingEventDto,
+    'displayName' | 'figi' | 'instrumentUid' | 'isin' | 'logoName' | 'ticker'
+  >,
+  quantity: ReturnType<typeof decimal>,
+  event: TbankDividend,
+): UpcomingEventDto {
+  return {
+    ...metadata,
+    type: 'dividend',
+    date: new Date(Number(event.recordDate?.seconds) * MILLISECONDS_PER_SECOND)
+      .toISOString()
+      .slice(ISO_DATE_START, ISO_DATE_LENGTH),
+    dateKind: 'registry',
+    projectedAmount: event.dividendNet
+      ? projectedMoney(
+          quantity,
+          formatDecimal(decimal(event.dividendNet)),
+          event.dividendNet.currency,
+        )
+      : null,
+  };
+}
+
+export function bondEvent(
+  metadata: Pick<
+    UpcomingEventDto,
+    'displayName' | 'figi' | 'instrumentUid' | 'isin' | 'logoName' | 'ticker'
+  >,
+  quantity: ReturnType<typeof decimal>,
+  event: MoexBondEvent,
+): UpcomingEventDto {
+  return {
+    ...metadata,
+    type: event.type,
+    date: event.date,
+    dateKind: 'event',
+    projectedAmount:
+      'value' in event
+        ? projectedMoney(quantity, event.value, event.currency)
+        : null,
+  };
+}
+
+function projectedMoney(
+  quantity: ReturnType<typeof decimal>,
+  value: string,
+  currency: string | undefined,
+): UpcomingEventDto['projectedAmount'] {
+  const normalizedCurrency = currency?.trim().toUpperCase();
+  if (!normalizedCurrency) return null;
+  return {
+    currency: normalizedCurrency,
+    value: formatDecimal(multiply(quantity, decimalFromString(value))),
+  };
+}