import OpenAI from 'openai';
import { env } from '$env/dynamic/private';

export const createLLM = () => {
	// Detect if we are using Ollama or OpenAI based on URL
	const baseURL = env.OPENAI_BASE_URL;
	const apiKey = env.OPENAI_API_KEY;
	const model = env.LLM_MODEL || 'gpt-4o';

	console.log('[LLM] Initializing client...');
	console.log('[LLM] Base URL:', baseURL);
	console.log('[LLM] Model:', model);

	if (!baseURL) {
		throw new Error('OPENAI_BASE_URL environment variable is not set');
	}

	if (!apiKey) {
		throw new Error('OPENAI_API_KEY environment variable is not set');
	}

	const client = new OpenAI({
		apiKey,
		baseURL
	});

	return { client, model };
};

/**
 * Health check for LLM service
 */
export async function checkLLMHealth(): Promise<boolean> {
	try {
		const { client } = createLLM();
		await client.models.list();
		console.log('[LLM] Health check passed');
		return true;
	} catch (e) {
		console.error('[LLM] Health check failed:', e);
		return false;
	}
}