From aed50bebcc31d488ca521c7bcf9ae748ab9e182f Mon Sep 17 00:00:00 2001
From: Thomas Kaul <4159106+dtslvr@users.noreply.github.com>
Date: Fri, 28 Aug 2026 10:51:24 +0200
Subject: [PATCH] Fix creation of asset profiles with symbol in wrong letter
 case by using original symbol

---
 .../symbol-profile.service.spec.ts             | 18 +++++++++++++-----
 .../symbol-profile/symbol-profile.service.ts   | 10 ++++++++++
 2 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/apps/api/src/services/symbol-profile/symbol-profile.service.spec.ts b/apps/api/src/services/symbol-profile/symbol-profile.service.spec.ts
index 6e61583db..1d84e193c 100644
--- a/apps/api/src/services/symbol-profile/symbol-profile.service.spec.ts
+++ b/apps/api/src/services/symbol-profile/symbol-profile.service.spec.ts
@@ -3,12 +3,18 @@ import { DataSource } from '@prisma/client';
 import { SymbolProfileService } from './symbol-profile.service';
 
 describe('SymbolProfileService', () => {
-  let prismaService: { symbolProfile: { findMany: jest.Mock } };
   let symbolProfileService: SymbolProfileService;
 
+  let prismaService: {
+    symbolProfile: { findMany: jest.Mock; findUnique: jest.Mock };
+  };
+
   beforeEach(() => {
     prismaService = {
-      symbolProfile: { findMany: jest.fn().mockResolvedValue([]) }
+      symbolProfile: {
+        findMany: jest.fn().mockResolvedValue([]),
+        findUnique: jest.fn().mockResolvedValue(null)
+      }
     };
 
     symbolProfileService = new SymbolProfileService(prismaService as any);
@@ -16,9 +22,9 @@ describe('SymbolProfileService', () => {
 
   describe('getSymbolOfAssetProfile', () => {
     it('Keeps the symbol of the existing asset profile', async () => {
-      prismaService.symbolProfile.findMany.mockResolvedValue([
-        { symbol: 'AAPL' }
-      ]);
+      prismaService.symbolProfile.findUnique.mockResolvedValue({
+        symbol: 'AAPL'
+      });
 
       const symbol = await symbolProfileService.getSymbolOfAssetProfile({
         dataSource: DataSource.YAHOO,
@@ -27,6 +33,7 @@ describe('SymbolProfileService', () => {
       });
 
       expect(symbol).toEqual('AAPL');
+      expect(prismaService.symbolProfile.findMany).not.toHaveBeenCalled();
     });
 
     it('Keeps the letter case of the existing asset profile', async () => {
@@ -100,6 +107,7 @@ describe('SymbolProfileService', () => {
 
       expect(symbol).toEqual('GF_apple');
       expect(prismaService.symbolProfile.findMany).not.toHaveBeenCalled();
+      expect(prismaService.symbolProfile.findUnique).not.toHaveBeenCalled();
     });
   });
 });
diff --git a/apps/api/src/services/symbol-profile/symbol-profile.service.ts b/apps/api/src/services/symbol-profile/symbol-profile.service.ts
index 1afbce69a..07f482884 100644
--- a/apps/api/src/services/symbol-profile/symbol-profile.service.ts
+++ b/apps/api/src/services/symbol-profile/symbol-profile.service.ts
@@ -143,6 +143,16 @@ export class SymbolProfileService {
       return symbol;
     }
 
+    const symbolProfileWithSameSymbol =
+      await this.prismaService.symbolProfile.findUnique({
+        select: { symbol: true },
+        where: { dataSource_symbol: { dataSource, symbol } }
+      });
+
+    if (symbolProfileWithSameSymbol) {
+      return symbol;
+    }
+
     const symbolProfiles = (
       await this.prismaService.symbolProfile.findMany({
         orderBy: { symbol: 'asc' },