(function (root, factory) {
  // 根配置只负责运行环境与接口基础地址。
  if (typeof module === 'object' && module.exports) {
    module.exports = factory;
    return;
  }

  root.GenealogyConfig = factory(root);
})(typeof globalThis !== 'undefined' ? globalThis : window, function (root) {
  'use strict';

  var ENVIRONMENTS = {
    development: {
      apiBaseUrl: 'http://test-genealogy-api.ddxcjp.cn'
    },
    production: {
      // 后端尚未提供正式生产域名，暂时保持用户指定的测试地址。
      apiBaseUrl: 'http://test-genealogy-api.ddxcjp.cn'
    }
  };

  function getEnvironment() {
    var location = root.location || {};
    var hostname = location.hostname || '';

    if (hostname === 'localhost' || hostname === '127.0.0.1' || location.port) {
      return 'development';
    }

    return 'production';
  }

  function getApiBaseUrl() {
    return ENVIRONMENTS[getEnvironment()].apiBaseUrl;
  }

  function getConfig() {
    return {
      environment: getEnvironment(),
      apiBaseUrl: getApiBaseUrl()
    };
  }

  return {
    getEnvironment: getEnvironment,
    getApiBaseUrl: getApiBaseUrl,
    getConfig: getConfig
  };
});