Bugfix/fix spike of positions with differing currency of user (#248)

* Convert market price back to currency of position

* Update changelog

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Fixed the missing market state in the positions tab
+- Fixed the chart of positions with differing currency from user
 
 ## 1.31.1 - 01.08.2021
 

apps/api/src/app/portfolio/portfolio.service.ts

@@ -300,11 +300,17 @@ export class PortfolioService {
         currency,
         firstBuyDate,
         investment,
-        marketPrice,
         quantity,
         transactionCount
       } = position;
 
+      // Convert market price back to currency of position
+      const marketPrice = this.exchangeRateDataService.toCurrency(
+        position.marketPrice,
+        this.request.user.Settings.currency,
+        currency
+      );
+
       const historicalData = await this.dataProviderService.getHistorical(
         [aSymbol],
         'day',