Bugfix/convert g bp to gbp in yahoo finance service (#301)

* Fix currency inconsistency in the yahoo finance service (GBp to GBP)

* Update changelog

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Fixed the node engine version mismatch in `package.json`
 - Fixed an issue on the buy date in the position detail dialog
+- Fixed an issue with the currency inconsistency in the _Yahoo Finance_ service (convert from `GBp` to `GBP`)
 
 ## 1.39.0 - 16.08.2021
 

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

@@ -10,6 +10,7 @@ import { Granularity } from '@ghostfolio/common/types';
 import { Injectable } from '@nestjs/common';
 import { AssetClass, Currency, DataSource } from '@prisma/client';
 import * as bent from 'bent';
+import Big from 'big.js';
 import { format } from 'date-fns';
 import * as yahooFinance from 'yahoo-finance';
 
@@ -72,6 +73,16 @@ export class YahooFinanceService implements DataProviderInterface {
           name: value.price?.longName || value.price?.shortName || symbol
         };
 
+        if (value.price?.currency === 'GBp') {
+          // Convert GBp (pence) to GBP
+          response[symbol].currency = Currency.GBP;
+          response[symbol].marketPrice = new Big(
+            value.price?.regularMarketPrice ?? 0
+          )
+            .div(100)
+            .toNumber();
+        }
+
         const url = value.summaryProfile?.website;
         if (url) {
           response[symbol].url = url;

libs/common/src/lib/helper.ts

@@ -102,18 +102,8 @@ export function isRakutenRapidApiSymbol(aSymbol = '') {
   return aSymbol === 'GF.FEAR_AND_GREED_INDEX';
 }
 
-export function parseCurrency(aString: string): Currency {
+export function parseCurrency(aCurrency: string): Currency {
-  if (aString?.toLowerCase() === 'chf') {
+  return Currency[aCurrency];
-    return Currency.CHF;
-  } else if (aString?.toLowerCase() === 'eur') {
-    return Currency.EUR;
-  } else if (aString?.toLowerCase() === 'gbp') {
-    return Currency.GBP;
-  } else if (aString?.toLowerCase() === 'usd') {
-    return Currency.USD;
-  }
-
-  return undefined;
 }
 
 export function resetHours(aDate: Date) {