"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.SERVER_TIME_MAP = exports.AxiosClient = void 0;
exports.getCurrentServerTime = getCurrentServerTime;
exports.version = void 0;
var _urijs = _interopRequireDefault(require("urijs"));
var _httpClient = require("../http-client");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
/* eslint-disable global-require */

// eslint-disable-next-line prefer-import/prefer-import-over-require , @typescript-eslint/naming-convention

const version = exports.version = "13.1.0";
/**
 * keep a local map of server times
 * (export this purely for testing purposes)
 *
 * each entry will map the server domain to the last-known time and the local
 * time it was recorded, ex:
 *
 * @example
 * "horizon-testnet.stellar.org": {
 *   serverTime: 1552513039,
 *   localTimeRecorded: 1552513052
 * }
 *
 * @constant {Record.<string, ServerTime>}
 * @default {}
 * @memberof module:Horizon
 */
const SERVER_TIME_MAP = exports.SERVER_TIME_MAP = {};
const AxiosClient = exports.AxiosClient = (0, _httpClient.create)({
  headers: {
    "X-Client-Name": "js-stellar-sdk",
    "X-Client-Version": version
  }
});
function toSeconds(ms) {
  return Math.floor(ms / 1000);
}
AxiosClient.interceptors.response.use(response => {
  const hostname = (0, _urijs.default)(response.config.url).hostname();
  let serverTime = 0;
  if (response.headers instanceof Headers) {
    const dateHeader = response.headers.get('date');
    if (dateHeader) {
      serverTime = toSeconds(Date.parse(dateHeader));
    }
  } else if (typeof response.headers === 'object' && 'date' in response.headers) {
    const headers = response.headers; // Cast response.headers to the correct type
    if (typeof headers.date === 'string') {
      serverTime = toSeconds(Date.parse(headers.date));
    }
  }
  const localTimeRecorded = toSeconds(new Date().getTime());
  if (!Number.isNaN(serverTime)) {
    SERVER_TIME_MAP[hostname] = {
      serverTime,
      localTimeRecorded
    };
  }
  return response;
});
var _default = exports.default = AxiosClient;
/**
 * Given a hostname, get the current time of that server (i.e., use the last-
 * recorded server time and offset it by the time since then.) If there IS no
 * recorded server time, or it's been 5 minutes since the last, return null.
 * @memberof module:Horizon
 *
 * @param {string} hostname Hostname of a Horizon server.
 * @returns {number} The UNIX timestamp (in seconds, not milliseconds)
 * representing the current time on that server, or `null` if we don't have
 * a record of that time.
 */
function getCurrentServerTime(hostname) {
  const entry = SERVER_TIME_MAP[hostname];
  if (!entry || !entry.localTimeRecorded || !entry.serverTime) {
    return null;
  }
  const {
    serverTime,
    localTimeRecorded
  } = entry;
  const currentTime = toSeconds(new Date().getTime());

  // if it's been more than 5 minutes from the last time, then null it out
  if (currentTime - localTimeRecorded > 60 * 5) {
    return null;
  }
  return currentTime - localTimeRecorded + serverTime;
}