Improve handling of derived currencies (getHistoricalRaw())

apps/api/src/services/data-provider/data-provider.service.ts

@@ -19,7 +19,7 @@ import type { Granularity, UserWithSettings } from '@ghostfolio/common/types';
 import { Inject, Injectable, Logger } from '@nestjs/common';
 import { DataSource, MarketData, SymbolProfile } from '@prisma/client';
 import Big from 'big.js';
-import { format, isValid } from 'date-fns';
+import { eachDayOfInterval, format, isValid } from 'date-fns';
 import { groupBy, isEmpty, isNumber } from 'lodash';
 import ms from 'ms';
 
@@ -209,8 +209,6 @@ export class DataProviderService {
   ): Promise<{
     [symbol: string]: { [date: string]: IDataProviderHistoricalResponse };
   }> {
-    // TODO
-
     const result: {
       [symbol: string]: { [date: string]: IDataProviderHistoricalResponse };
     } = {};
@@ -222,6 +220,23 @@ export class DataProviderService {
     for (const { dataSource, symbol } of aDataGatheringItems) {
       const dataProvider = this.getDataProvider(dataSource);
       if (dataProvider.canHandle(symbol)) {
+        // TODO: Handle derived currencies
+        if (symbol === `${DEFAULT_CURRENCY}USX`) {
+          const data: {
+            [date: string]: IDataProviderHistoricalResponse;
+          } = {};
+
+          for (const date of eachDayOfInterval({ end: to, start: from })) {
+            data[format(date, DATE_FORMAT)] = { marketPrice: 100 };
+          }
+
+          promises.push(
+            Promise.resolve({
+              data,
+              symbol
+            })
+          );
+        } else {
           promises.push(
             dataProvider
               .getHistorical({
@@ -230,10 +245,13 @@ export class DataProviderService {
                 to,
                 requestTimeout: ms('30 seconds')
               })
-            .then((data) => ({ data: data?.[symbol], symbol }))
+              .then((data) => {
+                return { symbol, data: data?.[symbol] };
+              })
           );
         }
       }
+    }
 
     try {
       const allData = await Promise.all(promises);
@@ -244,6 +262,8 @@ export class DataProviderService {
       Logger.error(error, 'DataProviderService');
     }
 
+    console.log({ result });
+
     return result;
   }