import { createDeepInfra } from '@ai-sdk/deepinfra';
import { wrapLanguageModel } from 'ai';
import { createDeepinfraV4Middleware } from '@ai-billing/deepinfra';
import {
  consoleDestination,
  createObjectPriceResolver,
  type ModelPricing,
} from '@ai-billing/core';

const deepInfra = createDeepInfra({ apiKey: process.env.DEEPINFRA_API_KEY });

const customPricingMap: Record<string, ModelPricing> = {
  'meta-llama/Llama-3.3-70B-Instruct': {
    promptTokens: 0.13 / 1_000_000,
    completionTokens: 0.4 / 1_000_000,
  },
};

const priceResolver = createObjectPriceResolver(customPricingMap);

const billingMiddleware = createDeepinfraV4Middleware({
  destinations: [consoleDestination()],
  priceResolver,
});

const wrappedModel = wrapLanguageModel({
  model: deepInfra('meta-llama/Llama-3.3-70B-Instruct'),
  middleware: billingMiddleware,
});