Feature/expose max chart items as env variable (#3701)

* Expose MAX_CHART_ITEMS as env variable

* Update changelog

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Reworked the portfolio calculator
+- Exposed the maximum of chart data items as an environment variable (`MAX_CHART_ITEMS`)
 
 ### Fixed
 

apps/api/src/app/benchmark/benchmark.module.ts

@@ -2,6 +2,7 @@ import { RedisCacheModule } from '@ghostfolio/api/app/redis-cache/redis-cache.mo
 import { SymbolModule } from '@ghostfolio/api/app/symbol/symbol.module';
 import { TransformDataSourceInRequestModule } from '@ghostfolio/api/interceptors/transform-data-source-in-request/transform-data-source-in-request.module';
 import { TransformDataSourceInResponseModule } from '@ghostfolio/api/interceptors/transform-data-source-in-response/transform-data-source-in-response.module';
+import { ConfigurationModule } from '@ghostfolio/api/services/configuration/configuration.module';
 import { DataProviderModule } from '@ghostfolio/api/services/data-provider/data-provider.module';
 import { ExchangeRateDataModule } from '@ghostfolio/api/services/exchange-rate-data/exchange-rate-data.module';
 import { MarketDataModule } from '@ghostfolio/api/services/market-data/market-data.module';
@@ -18,6 +19,7 @@ import { BenchmarkService } from './benchmark.service';
   controllers: [BenchmarkController],
   exports: [BenchmarkService],
   imports: [
+    ConfigurationModule,
     DataProviderModule,
     ExchangeRateDataModule,
     MarketDataModule,

apps/api/src/app/benchmark/benchmark.service.spec.ts

@@ -12,6 +12,7 @@ describe('BenchmarkService', () => {
       null,
       null,
       null,
+      null,
       null
     );
   });

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

@@ -1,15 +1,13 @@
 import { RedisCacheService } from '@ghostfolio/api/app/redis-cache/redis-cache.service';
 import { SymbolService } from '@ghostfolio/api/app/symbol/symbol.service';
+import { ConfigurationService } from '@ghostfolio/api/services/configuration/configuration.service';
 import { DataProviderService } from '@ghostfolio/api/services/data-provider/data-provider.service';
 import { ExchangeRateDataService } from '@ghostfolio/api/services/exchange-rate-data/exchange-rate-data.service';
 import { MarketDataService } from '@ghostfolio/api/services/market-data/market-data.service';
 import { PrismaService } from '@ghostfolio/api/services/prisma/prisma.service';
 import { PropertyService } from '@ghostfolio/api/services/property/property.service';
 import { SymbolProfileService } from '@ghostfolio/api/services/symbol-profile/symbol-profile.service';
-import {
-  MAX_CHART_ITEMS,
-  PROPERTY_BENCHMARKS
-} from '@ghostfolio/common/config';
+import { PROPERTY_BENCHMARKS } from '@ghostfolio/common/config';
 import {
   DATE_FORMAT,
   calculateBenchmarkTrend,
@@ -47,6 +45,7 @@ export class BenchmarkService {
   private readonly CACHE_KEY_BENCHMARKS = 'BENCHMARKS';
 
   public constructor(
+    private readonly configurationService: ConfigurationService,
     private readonly dataProviderService: DataProviderService,
     private readonly exchangeRateDataService: ExchangeRateDataService,
     private readonly marketDataService: MarketDataService,
@@ -173,7 +172,12 @@ export class BenchmarkService {
         start: startDate,
         end: endDate
       },
-      { step: Math.round(days / Math.min(days, MAX_CHART_ITEMS)) }
+      {
+        step: Math.round(
+          days /
+            Math.min(days, this.configurationService.get('MAX_CHART_ITEMS'))
+        )
+      }
     ).map((date) => {
       return resetHours(date);
     });

apps/api/src/app/portfolio/calculator/portfolio-calculator.ts

@@ -9,7 +9,6 @@ import { ConfigurationService } from '@ghostfolio/api/services/configuration/con
 import { ExchangeRateDataService } from '@ghostfolio/api/services/exchange-rate-data/exchange-rate-data.service';
 import { IDataGatheringItem } from '@ghostfolio/api/services/interfaces/interfaces';
 import { getIntervalFromDateRange } from '@ghostfolio/common/calculation-helper';
-import { MAX_CHART_ITEMS } from '@ghostfolio/common/config';
 import {
   DATE_FORMAT,
   getSum,
@@ -247,7 +246,13 @@ export abstract class PortfolioCalculator {
     let chartDateMap = this.getChartDateMap({
       endDate: this.endDate,
       startDate: this.startDate,
-      step: Math.round(daysInMarket / Math.min(daysInMarket, MAX_CHART_ITEMS))
+      step: Math.round(
+        daysInMarket /
+          Math.min(
+            daysInMarket,
+            this.configurationService.get('MAX_CHART_ITEMS')
+          )
+      )
     });
 
     const chartDates = sortBy(Object.keys(chartDateMap), (chartDate) => {
@@ -659,12 +664,6 @@ export abstract class PortfolioCalculator {
     return this.snapshot.totalLiabilitiesWithCurrencyEffect;
   }
 
-  public async getSnapshot() {
-    await this.snapshotPromise;
-
-    return this.snapshot;
-  }
-
   public async getPerformance({ end, start }) {
     await this.snapshotPromise;
 
@@ -733,6 +732,12 @@ export abstract class PortfolioCalculator {
     return { chart };
   }
 
+  public async getSnapshot() {
+    await this.snapshotPromise;
+
+    return this.snapshot;
+  }
+
   public getStartDate() {
     let firstAccountBalanceDate: Date;
     let firstActivityDate: Date;
@@ -813,9 +818,17 @@ export abstract class PortfolioCalculator {
     }
 
     if (step > 1) {
-      // Reduce the step size of recent dates
+      // Reduce the step size of last 90 days
       for (let date of eachDayOfInterval(
         { end: endDate, start: subDays(endDate, 90) },
+        { step: 3 }
+      )) {
+        chartDateMap[format(date, DATE_FORMAT)] = true;
+      }
+
+      // Reduce the step size of last 30 days
+      for (let date of eachDayOfInterval(
+        { end: endDate, start: subDays(endDate, 30) },
         { step: 1 }
       )) {
         chartDateMap[format(date, DATE_FORMAT)] = true;

apps/api/src/services/configuration/configuration.service.ts

@@ -42,6 +42,7 @@ export class ConfigurationService {
       HOST: host({ default: '0.0.0.0' }),
       JWT_SECRET_KEY: str({}),
       MAX_ACTIVITIES_TO_IMPORT: num({ default: Number.MAX_SAFE_INTEGER }),
+      MAX_CHART_ITEMS: num({ default: 365 }),
       MAX_ITEM_IN_CACHE: num({ default: 9999 }),
       PORT: port({ default: 3333 }),
       REDIS_DB: num({ default: 0 }),

apps/api/src/services/interfaces/environment.interface.ts

@@ -28,6 +28,7 @@ export interface Environment extends CleanedEnvAccessors {
   GOOGLE_SHEETS_PRIVATE_KEY: string;
   JWT_SECRET_KEY: string;
   MAX_ACTIVITIES_TO_IMPORT: number;
+  MAX_CHART_ITEMS: number;
   MAX_ITEM_IN_CACHE: number;
   PORT: number;
   REDIS_DB: number;

libs/common/src/lib/config.ts

@@ -88,7 +88,6 @@ export const HEADER_KEY_IMPERSONATION = 'Impersonation-Id';
 export const HEADER_KEY_TIMEZONE = 'Timezone';
 export const HEADER_KEY_TOKEN = 'Authorization';
 
-export const MAX_CHART_ITEMS = 365;
 export const MAX_TOP_HOLDINGS = 50;
 
 export const NUMERICAL_PRECISION_THRESHOLD = 100000;