import OpenAI from 'openai'; import { createAnthropicClient, createAnthropicLlmClient, createOpenAiLlmClient, type LlmClient, type LlmProviderId, } from '@portfolio/chat-llm'; import { requireEnv } from './env';

let cachedOpenAi: ReturnType | null = null; let cachedAnthropic: ReturnType | null = null;

export function getPreprocessLlmClient(provider: LlmProviderId): LlmClient { if (provider === 'anthropic') { if (cachedAnthropic) return cachedAnthropic; const apiKey = requireEnv('ANTHROPIC_API_KEY', 'ANTHROPIC_API_KEY is required when provider=anthropic'); const client = createAnthropicClient({ apiKey }); cachedAnthropic = createAnthropicLlmClient(client); return cachedAnthropic; }

if (cachedOpenAi) return cachedOpenAi; const apiKey = requireEnv('OPENAI_API_KEY', 'OPENAI_API_KEY is required when provider=openai'); const client = new OpenAI({ apiKey }); cachedOpenAi = createOpenAiLlmClient(client); return cachedOpenAi; }