// packages/utils/price.ts
import { PriceFetchingConfig, PriceFetchingResult, PriceResponse } from './price.types';

const API_BASE_URL = 'https://helper.decane.app';

export async function fetchPrices(config: PriceFetchingConfig): Promise<PriceFetchingResult> {
  const { vm, chainId, tokenAddresses } = config;

  if (tokenAddresses.length === 0) {
    return { data: { vm, chainId, prices: [] } as PriceResponse };
  }

  const url = new URL(`${API_BASE_URL}/${vm}/prices`);
  url.searchParams.append('chainId', String(chainId));
  url.searchParams.append('tokenAddresses', tokenAddresses.join(','));

  try {
    const response = await fetch(url.toString());

    if (!response.ok) {
      const errorData = await response.json();
      return { error: errorData };
    }

    const data = await response.json();
    return { data: data.data };
  } catch (error: any) {
    return {
      error: {
        code: 500,
        message: error.message || 'An unexpected error occurred',
        stack: error.stack,
        errors: [],
      },
    };
  }
}