nest new gemini-nest-backend
npm install @nestjs/config

async simplePrompt(prompt: string): Promise<string> {
  const result = await this.generativeModel.generateContent(prompt);
  return result.response.text();
}

MongooseModule.forRootAsync({
  imports: [ConfigModule],
  useFactory: (config: ConfigService) => ({
    uri: config.get<string>('DATABASE_URL')
  }),
  inject: [ConfigService],
})

export const ERP_SALES_PERSONA = `Bạn là Alex, chuyên viên tư vấn ERP...`;

if (history.length === 0) {
  history = [
    { role: 'user', parts: [{ text: ERP_SALES_PERSONA }] },
    { role: 'model', parts: [{ text: 'Entendido. Estou pronto para ajudar.' }] },
  ];
}

ng new gemini-angular-chat --standalone
npm install ngx-markdown

app.enableCors({ origin: 'http://localhost:4200' });

sendMessage(prompt: string, sessionId?: string): Observable<ApiResponse> {
  return this.http.post<ApiResponse>(this.apiUrl, { prompt, sessionId });
}

sendMessage(): void {
  if (!this.newMessage.trim()) return;

  this.messages.push({ text: this.newMessage, sender: 'user' });
  this.chatService.sendMessage(this.newMessage, this.sessionId).subscribe({
    next: res => {
      this.messages.push({ text: res.response, sender: 'bot' });
      this.sessionId = res.sessionId;
    },
    error: () => this.messages.push({ text: 'Có lỗi xảy ra', sender: 'bot' }),
  });
}

@Schema()
export class Agent {
  @Prop({ required: true, unique: true })
  name: string;

  @Prop({ required: true })
  persona: string;
}

const agent = await this.agentsService.findOne(agentId);
if (!agent) throw new NotFoundException();
history = [
  { role: 'user', parts: [{ text: agent.persona }] },
  { role: 'model', parts: [{ text: 'Entendido. Estou pronto.' }] },
];

<div *ngFor="let agent of agents" (click)="selectAgent(agent._id)" [class.selected]="agent._id === selectedAgentId">
  {{ agent.name }}
</div>