feat: add conversation module

src/modules/chatbot/chatbot.controller.ts

@@ -1,6 +1,7 @@
-import { Body, Controller, Post } from '@nestjs/common';
+import { Body, Controller, Post, Res } from '@nestjs/common';
 import { ChatbotService } from './providers/chatbot.service';
 import { Public } from '../auth/decorators/public.decorator';
+import type { Response } from 'express';
 
 @Controller('chatbot')
 export class ChatbotController {
@@ -17,4 +18,52 @@ export class ChatbotController {
   public async chat(@Body('message') message: string) {
     return this.chatbotService.chat(message);
   }
+
+  @Post('stream')
+  // TEMP:
+  @Public()
+  public async streamChat(
+    @Body('message') message: string,
+    @Res() res: Response,
+  ) {
+    res.setHeader('Content-Type', 'text/event-stream');
+    res.setHeader('Cache-Control', 'no-cache');
+    res.setHeader('Connection', 'keep-alive');
+
+    for await (const content of this.chatbotService.streamChat(message)) {
+      res.write(
+        `data: ${JSON.stringify({
+          message: content,
+        })}\n\n`,
+      );
+    }
+
+    res.end();
+  }
+
+  // @Sse('stream')
+  // @Public()
+  // public streamChat(
+  //   @Body('message') message: string,
+  // ): Observable<MessageEvent> {
+  //   return new Observable((subscriber) => {
+  //     const run = async () => {
+  //       try {
+  //         for await (const content of this.chatbotService.streamChat(message)) {
+  //           subscriber.next({
+  //             data: {
+  //               message: content,
+  //             },
+  //           });
+  //         }
+
+  //         subscriber.complete();
+  //       } catch (err) {
+  //         subscriber.error(err);
+  //       }
+  //     };
+
+  //     void run();
+  //   });
+  // }
 }