// 创作者数据中转网关（voc-e-commerce）。用于抖音星图、小红书蒲公英（PGY）的创作者侧
// 结构化数据接口（创作者搜索、画像、受众/粉丝分布、内容与评论关键词、笔记/视频绩效、
// 报价与性价比等）。鉴权、计费、错误分类、重试逻辑全部复用社媒网关（voc-gateway）的
// 共享实现，只是根地址不同；对外不暴露任何上游数据供应商名称。
const {
  buildGatewayUrl,
  requestJson,
  classifyApiError,
  redactSecret,
  unwrapData
} = require('./voc-gateway');

const ECOMMERCE_GATEWAY_ROOT = 'https://server.fmode.cn/api/voc-e-commerce';

function resolveEcommerceRoot(baseUrl) {
  return String(
    baseUrl ||
      process.env.VOC_ECOMMERCE_API_BASE_URL ||
      process.env.VOC_ECOMMERCE_GATEWAY_URL ||
      ECOMMERCE_GATEWAY_ROOT
  ).replace(/\/$/, '');
}

// 与 callSocialGateway 完全一致的「优先 newapi sk-、鉴权失败回退 sessionToken」逻辑，
// 只是走 voc-e-commerce 根地址。402（余额不足）/403（无权限）不回退。
async function callEcommerceGateway({ proxyPath, method = 'GET', query = {}, body, token, fallbackToken, baseUrl, retries = 3 } = {}) {
  const root = resolveEcommerceRoot(baseUrl);
  const url = buildGatewayUrl(root, proxyPath, query);
  const upper = String(method || 'GET').toUpperCase();
  const requestOptions = {
    method: upper,
    body: upper === 'GET' ? undefined : body,
    retries
  };
  try {
    return await requestJson(url, token, requestOptions);
  } catch (error) {
    const canFallback = fallbackToken && fallbackToken !== token && error && error.kind === 'auth';
    if (!canFallback) throw error;
    return requestJson(url, fallbackToken, requestOptions);
  }
}

module.exports = {
  ECOMMERCE_GATEWAY_ROOT,
  resolveEcommerceRoot,
  buildGatewayUrl,
  classifyApiError,
  redactSecret,
  unwrapData,
  requestJson,
  callEcommerceGateway
};