import { createTogetherAI } from '@ai-sdk/togetherai';
import { wrapLanguageModel } from 'ai';
import { createTogetheraiV4Middleware } from '@ai-billing/togetherai';
import {
  consoleDestination,
  createObjectPriceResolver,
  type ModelPricing,
} from '@ai-billing/core';

const togetherai = createTogetherAI({ apiKey: process.env.TOGETHER_API_KEY });

const customPricingMap: Record<string, ModelPricing> = {
  'openai/gpt-oss-20b': {
    promptTokens: 0.05 / 1_000_000,
    completionTokens: 0.2 / 1_000_000,
  },
};

const priceResolver = createObjectPriceResolver(customPricingMap);

const billingMiddleware = createTogetheraiV4Middleware({
  destinations: [consoleDestination()],
  priceResolver,
});

const wrappedModel = wrapLanguageModel({
  model: togetherai('openai/gpt-oss-20b'),
  middleware: billingMiddleware,
});