Feature/add default market price to scraper configuration (#762)

* Add default market price to scraper configuration

* Update changelog

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added the attribute `defaultMarketPrice` to the scraper configuration to improve the support for bonds
 - Added a hover effect to the table style
 
 ### Fixed

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

@@ -13,7 +13,7 @@ import { Injectable, Logger } from '@nestjs/common';
 import { DataSource, SymbolProfile } from '@prisma/client';
 import * as bent from 'bent';
 import * as cheerio from 'cheerio';
-import { format } from 'date-fns';
+import { addDays, format, isBefore } from 'date-fns';
 
 @Injectable()
 export class GhostfolioScraperApiService implements DataProviderInterface {
@@ -50,9 +50,27 @@ export class GhostfolioScraperApiService implements DataProviderInterface {
       const [symbolProfile] = await this.symbolProfileService.getSymbolProfiles(
         [symbol]
       );
-      const { selector, url } = symbolProfile.scraperConfiguration;
+      const { defaultMarketPrice, selector, url } =
+        symbolProfile.scraperConfiguration;
+
+      if (defaultMarketPrice) {
+        const historical: {
+          [symbol: string]: { [date: string]: IDataProviderHistoricalResponse };
+        } = {
+          [symbol]: {}
+        };
+        let date = from;
+
+        while (isBefore(date, to)) {
+          historical[symbol][format(date, DATE_FORMAT)] = {
+            marketPrice: defaultMarketPrice
+          };
+
+          date = addDays(date, 1);
+        }
 
-      if (selector === undefined || url === undefined) {
+        return historical;
+      } else if (selector === undefined || url === undefined) {
         return {};
       }
 

apps/api/src/services/data-provider/ghostfolio-scraper-api/interfaces/scraper-configuration.interface.ts

@@ -1,4 +1,5 @@
 export interface ScraperConfiguration {
+  defaultMarketPrice?: number;
   selector: string;
   url: string;
 }

apps/api/src/services/symbol-profile.service.ts

@@ -79,6 +79,7 @@ export class SymbolProfileService {
 
     if (scraperConfiguration) {
       return {
+        defaultMarketPrice: scraperConfiguration.defaultMarketPrice as number,
         selector: scraperConfiguration.selector as string,
         url: scraperConfiguration.url as string
       };