chore: Update Langchain to latest version and TypeScript to v5

package.json

@@ -73,9 +73,10 @@
         "@dhaiwat10/react-link-preview": "^1.9.1",
         "@emotion/react": "^11.10.4",
         "@emotion/styled": "^11.10.4",
-        "@langchain/community": "^0.0.54",
-        "@langchain/core": "^0.1.63",
-        "@langchain/openai": "^0.0.28",
+        "@langchain/community": "1.1.16",
+        "@langchain/core": "1.1.26",
+        "@langchain/langgraph": "^1.1.5",
+        "@langchain/openai": "1.2.8",
         "@mui/icons-material": "^5.10.9",
         "@mui/joy": "^5.0.0-beta.48",
         "@mui/lab": "^6.0.0-beta.30",
@@ -136,7 +137,7 @@
         "jotai-xstate": "^0.3.0",
         "js-cookie": "^3.0.1",
         "jsonwebtoken": "^9.0.2",
-        "langchain": "^0.1.36",
+        "langchain": "1.2.25",
         "lottie-web": "^5.10.1",
         "md5": "^2.3.0",
         "migrate-mongo-ts": "^1.1.4",
@@ -233,7 +234,7 @@
         "react-i18next": "^11.16.7",
         "supertest": "^6.2.4",
         "ts-jest": "^29.1.1",
-        "typescript": "^4.3.5",
+        "typescript": "^5.3.0",
         "wait-on": "9.0.3"
     },
     "browserslist": [
@@ -282,7 +283,8 @@
         "glob": "^9.0.0",
         "tldjs": "2.3.1",
         "@compodoc/compodoc": "1.1.21",
-        "cheerio": "1.0.0-rc.12"
+        "cheerio": "1.0.0-rc.12",
+        "@langchain/core/ansi-styles": "5.2.0"
     },
     "packageManager": "yarn@3.6.3",
     "engines": {

server/copilot/copilot-chat.service.ts

@@ -27,12 +27,15 @@ import {
 import { z } from "zod";
 
 import { DynamicStructuredTool } from "@langchain/core/tools";
-import { AgentExecutor, createOpenAIFunctionsAgent } from "langchain/agents";
+import {
+    AgentExecutor,
+    createToolCallingAgent,
+} from "@langchain/classic/agents";
 import {
     ChatPromptTemplate,
     MessagesPlaceholder,
 } from "@langchain/core/prompts";
-import { HumanMessage, AIMessage } from "langchain/schema";
+import { HumanMessage, AIMessage } from "@langchain/core/messages";
 import { AutomatedFactCheckingService } from "../automated-fact-checking/automated-fact-checking.service";
 import { EditorParseService } from "../editor-parse/editor-parse.service";
 import { ConfigService } from "@nestjs/config";
@@ -127,8 +130,11 @@ export class CopilotChatService {
                 (message) => this.transformMessage(message)
             );
             const tools = [
-                new DynamicStructuredTool(this.getFactCheckingReportTool),
+                new DynamicStructuredTool(
+                    this.getFactCheckingReportTool as any
+                ),
             ];
+
             const currentMessageContent =
                 contextAwareMessagesDto.messages[
                     contextAwareMessagesDto.messages.length - 1
@@ -175,7 +181,7 @@ export class CopilotChatService {
                 apiKey: this.configService.get<string>("openai.api_key"),
             });
 
-            const agent = await createOpenAIFunctionsAgent({
+            const agent = await createToolCallingAgent({
                 llm,
                 tools,
                 prompt,

server/summarization/summarization-crawler-chain.service.ts

@@ -1,9 +1,9 @@
 import { PromptTemplate } from "@langchain/core/prompts";
 import { Injectable, Logger } from "@nestjs/common";
-import { loadSummarizationChain, StuffDocumentsChain } from "langchain/chains";
+import { loadSummarizationChain, StuffDocumentsChain } from "@langchain/classic/chains";
 import { ChatOpenAI } from "@langchain/openai";
 import { openAI } from "../copilot/openAI.constants";
-import { RecursiveCharacterTextSplitter } from "langchain/text_splitter";
+import { RecursiveCharacterTextSplitter } from "@langchain/textsplitters";
 import { ConfigService } from "@nestjs/config";
 
 @Injectable()

server/summarization/summarization-crawler.service.ts

@@ -1,9 +1,12 @@
 import { Injectable, Logger } from "@nestjs/common";
 import { SummarizationCrawlerChainService } from "./summarization-crawler-chain.service";
-import { WebBrowser } from "langchain/tools/webbrowser";
+import { WebBrowser } from "@langchain/classic/tools/webbrowser";
 import { ChatOpenAI, OpenAIEmbeddings } from "@langchain/openai";
 import { openAI } from "../copilot/openAI.constants";
-import { AgentExecutor, createOpenAIToolsAgent } from "langchain/agents";
+import {
+    AgentExecutor,
+    createToolCallingAgent,
+} from "@langchain/classic/agents";
 import { ConfigService } from "@nestjs/config";
 import colors from "../../src/styles/colors";
 import {
@@ -151,7 +154,7 @@ export class SummarizationCrawlerService {
         const embeddings = new OpenAIEmbeddings();
         const tools = [new WebBrowser({ model: llm, embeddings })];
 
-        const agent = await createOpenAIToolsAgent({
+        const agent = await createToolCallingAgent({
             llm,
             tools,
             prompt,