96 assemble a basic llm chains (#97)

* added llmGateWay and LlmChain and updated OpenAI newest version

* small fix in slicing conversation in memory

* small fix in the llm-chain

* added unit test

* formatting with prettier

* small fix and added unit test for llm-connection-gateway

new-chatbot-app/.vscode/settings.json

@@ -0,0 +1,2 @@
+{
+}

new-chatbot-app/package.json

@@ -28,7 +28,7 @@
     "@nestjs/platform-socket.io": "^10.3.3",
     "@nestjs/websockets": "^10.3.3",
     "eslint-plugin-unused-imports": "^3.1.0",
-    "openai": "^3.3.0",
+    "openai": "^4.28.4",
     "reflect-metadata": "^0.1.13",
     "rxjs": "^7.8.1"
   },

new-chatbot-app/src/app.module.ts

@@ -1,11 +1,10 @@
 import { Module } from '@nestjs/common';
 import { LlmChainModule } from './llm-chain/llm-chain.module';
 import { LibraryApiModule } from './library-api/library-api.module';
-import { ChatGateway } from './chat/chat.gateway';
 import { SharedModule } from './shared/shared.module';
+import { GatewayModule } from './gateway/gateway.module';
 
 @Module({
-  imports: [LlmChainModule, LibraryApiModule, SharedModule],
-  providers: [ChatGateway],
+  imports: [LlmChainModule, LibraryApiModule, SharedModule, GatewayModule],
 })
 export class AppModule {}

new-chatbot-app/src/chat/chat.gateway.spec.ts → new-chatbot-app/src/gateway/chat/chat.gateway.spec.ts

@@ -1,12 +1,13 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { ChatGateway } from './chat.gateway';
+import { LlmConnectionGateway } from '../connection/llm-connection.gateway';
 
 describe('ChatGateway', () => {
   let gateway: ChatGateway;
 
   beforeEach(async () => {
     const module: TestingModule = await Test.createTestingModule({
-      providers: [ChatGateway],
+      providers: [ChatGateway, LlmConnectionGateway],
     }).compile();
 
     gateway = module.get<ChatGateway>(ChatGateway);