Feature/support localization in date fns (#1195)

* Add locale to date-fns (formatDistanceToNow)

* Update changelog

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Added
+
+- Added support for translated time distances
+
 ### Changed
 
 - Improved the language localization for German (`de`)

apps/client/src/app/components/home-summary/home-summary.html

@@ -10,6 +10,7 @@
             [baseCurrency]="user?.settings?.baseCurrency"
             [hasPermissionToUpdateUserSettings]="!hasImpersonationId && hasPermissionToUpdateUserSettings"
             [isLoading]="isLoading"
+            [language]="user?.settings?.language"
             [locale]="user?.settings?.locale"
             [summary]="summary"
             (emergencyFundChanged)="onChangeEmergencyFund($event)"

apps/client/src/app/components/portfolio-summary/portfolio-summary.component.ts

@@ -7,6 +7,7 @@ import {
   OnInit,
   Output
 } from '@angular/core';
+import { getDateFnsLocale } from '@ghostfolio/common/helper';
 import { PortfolioSummary } from '@ghostfolio/common/interfaces';
 import { formatDistanceToNow } from 'date-fns';
 
@@ -20,6 +21,7 @@ export class PortfolioSummaryComponent implements OnChanges, OnInit {
   @Input() baseCurrency: string;
   @Input() hasPermissionToUpdateUserSettings: boolean;
   @Input() isLoading: boolean;
+  @Input() language: string;
   @Input() locale: string;
   @Input() summary: PortfolioSummary;
 
@@ -34,7 +36,9 @@ export class PortfolioSummaryComponent implements OnChanges, OnInit {
   public ngOnChanges() {
     if (this.summary) {
       if (this.summary.firstOrderDate) {
-        this.timeInMarket = formatDistanceToNow(this.summary.firstOrderDate);
+        this.timeInMarket = formatDistanceToNow(this.summary.firstOrderDate, {
+          locale: getDateFnsLocale(this.language)
+        });
       } else {
         this.timeInMarket = '-';
       }

libs/common/src/lib/helper.ts

@@ -1,6 +1,7 @@
 import * as currencies from '@dinero.js/currencies';
 import { DataSource } from '@prisma/client';
 import { getDate, getMonth, getYear, parse, subDays } from 'date-fns';
+import { de } from 'date-fns/locale';
 
 import { ghostfolioScraperApiSymbolPrefix, locale } from './config';
 import { Benchmark } from './interfaces';
@@ -56,6 +57,14 @@ export function getCssVariable(aCssVariable: string) {
   );
 }
 
+export function getDateFnsLocale(aLanguageCode: string) {
+  if (aLanguageCode === 'de') {
+    return de;
+  }
+
+  return undefined;
+}
+
 export function getDateFormatString(aLocale?: string) {
   const formatObject = new Intl.DateTimeFormat(aLocale).formatToParts(
     new Date()