import { createHuggingFace } from '@ai-sdk/huggingface';
import { wrapLanguageModel } from 'ai';
import { createHuggingfaceV4Middleware } from '@ai-billing/huggingface';
import {
  consoleDestination,
  createObjectPriceResolver,
  type ModelPricing,
} from '@ai-billing/core';

const huggingFace = createHuggingFace({ apiKey: process.env.HUGGINGFACE_API_KEY });

const customPricingMap: Record<string, ModelPricing> = {
  'meta-llama/Llama-3.1-8B-Instruct': {
    promptTokens: 0.05 / 1_000_000,
    completionTokens: 0.15 / 1_000_000,
  },
};

const priceResolver = createObjectPriceResolver(customPricingMap);

const billingMiddleware = createHuggingfaceV4Middleware({
  destinations: [consoleDestination()],
  priceResolver,
});

const wrappedModel = wrapLanguageModel({
  model: huggingFace('meta-llama/Llama-3.1-8B-Instruct'),
  middleware: billingMiddleware,
});