// Need to figoure out expiration and make sure to cycle this appropriately to avoid unnecessary calls
import fetch from "node-fetch";
import { LoggingLevel, smartLogging } from "./helper.js";

const fetchEbayReadToken = async () => {
  smartLogging(LoggingLevel.AppTrace, `fetchEbayReadToken`);
  const ebayClientId = process.env.EBAY_CLIENT_ID;
  const ebayClientSecret = process.env.EBAY_CLIENT_SECRET;
  const credentials = Buffer.from(
    `${ebayClientId}:${ebayClientSecret}`
  ).toString("base64");

  try {
    smartLogging(LoggingLevel.Debug, `Fetching Token from eBay`);
    const response = await fetch(
      "https://api.ebay.com/identity/v1/oauth2/token",
      {
        method: "POST",
        headers: {
          "Content-Type": "application/x-www-form-urlencoded",
          Authorization: `Basic ${credentials}`,
        },
        body: "grant_type=client_credentials&scope=https%3A%2F%2Fapi.ebay.com%2Foauth%2Fapi_scope",
      }
    );

    if (!response.ok) {
      const errorBody = await response.text();
      throw new Error(
        `Failed to fetch eBay OAuth token: ${response.status} ${response.statusText} - ${errorBody}`
      );
    }

    const data = await response.json();
    return data.access_token;
  } catch (error) {
    smartLogging(LoggingLevel.Error, `Error fetching eBay OAuth token: ${error}`);
    throw error; // Throw the error to be handled by the caller
  }
};

export default fetchEbayReadToken;