Task/optimize performance of search in assistant (#7534)

* Improve performance of search in assistant by reusing cached portfolio snapshot

* Update changelog

CHANGELOG.md

@@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+
+- Optimized the performance of the search in the assistant by reusing the cached portfolio snapshot
+
+### Fixed
+
+- Fixed the fuzzy search for the holdings in the assistant
+
 ## 3.41.0 - 2026-08-03
 
 ### Added

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

@@ -165,6 +165,10 @@ export class PortfolioService {
       };
     }
 
+    const filtersWithoutSearchQueryFilter = filters?.filter(({ type }) => {
+      return type !== 'SEARCH_QUERY';
+    });
+
     const [accounts, details, user] = await Promise.all([
       this.accountService.accounts({
         where,
@@ -176,8 +180,8 @@ export class PortfolioService {
         orderBy: { name: 'asc' }
       }),
       this.getDetails({
-        filters,
         withExcludedAccounts,
+        filters: filtersWithoutSearchQueryFilter,
         impersonationId: userId,
         userId: this.request.user.id
       }),
@@ -369,14 +373,6 @@ export class PortfolioService {
     userId: string;
   }) {
     userId = await this.getUserId(impersonationId, userId);
-    const { holdings: holdingsMap } = await this.getDetails({
-      dateRange,
-      filters,
-      impersonationId,
-      userId
-    });
-
-    let holdings = Object.values(holdingsMap);
 
     const { SEARCH_QUERY: [filterBySearchQuery] = [] } = groupBy(
       filters,
@@ -385,9 +381,22 @@ export class PortfolioService {
       }
     );
 
+    const filtersWithoutSearchQueryFilter = filters?.filter(({ type }) => {
+      return type !== 'SEARCH_QUERY';
+    });
+
+    const { holdings: holdingsMap } = await this.getDetails({
+      dateRange,
+      impersonationId,
+      userId,
+      filters: filtersWithoutSearchQueryFilter
+    });
+
+    let holdings = Object.values(holdingsMap);
+
     if (filterBySearchQuery) {
       const fuse = new Fuse(holdings, {
-        keys: ['isin', 'name', 'symbol'],
+        keys: ['assetProfile.isin', 'assetProfile.name', 'assetProfile.symbol'],
         threshold: 0.3
       });
 
@@ -651,6 +660,7 @@ export class PortfolioService {
               };
             }
           ),
+          isin: assetProfile.isin,
           name: assetProfile.name,
           sectors: assetProfile.sectors,
           symbol: assetProfile.symbol,

libs/common/src/lib/interfaces/portfolio-position.interface.ts

@@ -15,6 +15,7 @@ export interface PortfolioPosition {
     | 'currency'
     | 'dataSource'
     | 'holdings'
+    | 'isin'
     | 'name'
     | 'sectors'
     | 'symbol'