import { createCohere } from '@ai-sdk/cohere';
import { wrapLanguageModel } from 'ai';
import { createCohereV4Middleware } from '@ai-billing/cohere';
import {
  consoleDestination,
  createObjectPriceResolver,
  type ModelPricing,
} from '@ai-billing/core';

const cohere = createCohere({ apiKey: process.env.COHERE_API_KEY });

const customPricingMap: Record<string, ModelPricing> = {
  'command-r-08-2024': {
    promptTokens: 0.15 / 1_000_000,
    completionTokens: 0.6 / 1_000_000,
  },
};

const priceResolver = createObjectPriceResolver(customPricingMap);

const billingMiddleware = createCohereV4Middleware({
  destinations: [consoleDestination()],
  priceResolver,
});

const wrappedModel = wrapLanguageModel({
  model: cohere('command-r-08-2024'),
  middleware: billingMiddleware,
});