fix(performance): ignore non-RUB cash flows (WealthLedger/main#55)

src/modules/investments/performance/domain/performance-flows.spec.ts

@@ -44,6 +44,6 @@ describe('performance cash flows', () => {
     ]);
     expect(result.flows).toHaveLength(1);
     expect(formatDecimal(sumFlows(result.flows))).toBe('100');
-    expect([...result.missingAmountAccounts]).toEqual(['A']);
+    expect([...result.missingAmountAccounts]).toEqual([]);
   });
 });

src/modules/investments/performance/domain/performance-flows.ts

@@ -68,10 +68,8 @@ function appendCashFlow(
     missingAmountAccounts.add(operation.accountId);
     return;
   }
-  if (value.currency !== 'RUB') {
+  // RUB-only: non-RUB cash movements have no rate to RUB and are left out of XIRR.
-    missingAmountAccounts.add(operation.accountId);
+  if (value.currency !== 'RUB') return;
-    return;
-  }
   const amount = magnitude(value.value);
   flows.push({
     accountId: operation.accountId,

src/modules/investments/performance/performance.service.spec.ts

@@ -94,13 +94,6 @@ describe('investment performance read', () => {
     expect(result.data?.return).toMatchObject({ basis: 'period', value: '0.1' });
   });
 
-  it('reports incomplete history for a non-RUB deposit', async () => {
-    const broken = account('A');
-    broken.operations.push({ ...operation('A', 'OPERATION_TYPE_INPUT', '21'), payload: { type: 'OPERATION_TYPE_INPUT', payment: { currency: 'usd', units: '21', nano: 0 } } });
-    expect((await setup([broken]).service.read('user', 'A')).meta.unavailable)
-      .toEqual([{ accountId: 'A', name: 'A', reason: 'OPERATIONS_HISTORY_INCOMPLETE' }]);
-  });
-
   it('reports incomplete history for a deposit without an amount', async () => {
     const broken = account('A');
     broken.operations.push({ ...operation('A', 'OPERATION_TYPE_INPUT', '0'), payload: { type: 'OPERATION_TYPE_INPUT' } } as never);