import { createAlibaba } from '@ai-sdk/alibaba';
import { wrapLanguageModel } from 'ai';
import { createAlibabaV4Middleware } from '@ai-billing/alibaba';
import {
  consoleDestination,
  createObjectPriceResolver,
  type ModelPricing,
} from '@ai-billing/core';

const alibaba = createAlibaba({ apiKey: process.env.ALIBABA_API_KEY });

const customPricingMap: Record<string, ModelPricing> = {
  'qwen-plus': {
    promptTokens: 0.8 / 1_000_000,
    completionTokens: 2.0 / 1_000_000,
  },
  'qwen-turbo': {
    promptTokens: 0.3 / 1_000_000,
    completionTokens: 0.6 / 1_000_000,
  },
};

const priceResolver = createObjectPriceResolver(customPricingMap);

const billingMiddleware = createAlibabaV4Middleware({
  destinations: [consoleDestination()],
  priceResolver,
});

const wrappedModel = wrapLanguageModel({
  model: alibaba('qwen-plus'),
  middleware: billingMiddleware,
});