text: import _slicedToArray from "@babel/runtime/helpers/slicedToArray";
  import _defineProperty from "@babel/runtime/helpers/defineProperty";
  
  function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }
  
  function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
  
  import { useState, useEffect, useContext, useRef } from 'react';
  import { getI18n, getDefaults, ReportNamespaces, I18nContext } from './context';
  import { warnOnce, loadNamespaces, hasLoadedNamespace } from './utils';
  export function useTranslation(ns) {
    var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var i18nFromProps = props.i18n;
  
    var _ref = useContext(I18nContext) || {},
        i18nFromContext = _ref.i18n,
        defaultNSFromContext = _ref.defaultNS;
  
    var i18n = i18nFromProps || i18nFromContext || getI18n();
    if (i18n && !i18n.reportNamespaces) i18n.reportNamespaces = new ReportNamespaces();
  
    if (!i18n) {
      warnOnce('You will need to pass in an i18next instance by using initReactI18next');
  
      var notReadyT = function notReadyT(k) {
        return Array.isArray(k) ? k[k.length - 1] : k;
      };
  
      var retNotReady = [notReadyT, {}, false];
      retNotReady.t = notReadyT;
      retNotReady.i18n = {};
      retNotReady.ready = false;
      return retNotReady;
    }
  
    if (i18n.options.react && i18n.options.react.wait !== undefined) warnOnce('It seems you are still using the old wait option, you may migrate to the new useSuspense behaviour.');
  
    var i18nOptions = _objectSpread(_objectSpread(_objectSpread({}, getDefaults()), i18n.options.react), props);
  
    var useSuspense = i18nOptions.useSuspense,
        keyPrefix = i18nOptions.keyPrefix;
    var namespaces = ns || defaultNSFromContext || i18n.options && i18n.options.defaultNS;
    namespaces = typeof namespaces === 'string' ? [namespaces] : namespaces || ['translation'];
    if (i18n.reportNamespaces.addUsedNamespaces) i18n.reportNamespaces.addUsedNamespaces(namespaces);
    var ready = (i18n.isInitialized || i18n.initializedStoreOnce) && namespaces.every(function (n) {
      return hasLoadedNamespace(n, i18n, i18nOptions);
    });
  
    function getT() {
      return i18n.getFixedT(null, i18nOptions.nsMode === 'fallback' ? namespaces : namespaces[0], keyPrefix);
    }
  
    var _useState = useState(getT),
        _useState2 = _slicedToArray(_useState, 2),
        t = _useState2[0],
        setT = _useState2[1];
  
    var isMounted = useRef(true);
    useEffect(function () {
      var bindI18n = i18nOptions.bindI18n,
          bindI18nStore = i18nOptions.bindI18nStore;
      isMounted.current = true;
  
      if (!ready && !useSuspense) {
        loadNamespaces(i18n, namespaces, function () {
          if (isMounted.current) setT(getT);
        });
      }
  
      function boundReset() {
        if (isMounted.current) setT(getT);
      }
  
      if (bindI18n && i18n) i18n.on(bindI18n, boundReset);
      if (bindI18nStore && i18n) i18n.store.on(bindI18nStore, boundReset);
      return function () {
        isMounted.current = false;
        if (bindI18n && i18n) bindI18n.split(' ').forEach(function (e) {
          return i18n.off(e, boundReset);
        });
        if (bindI18nStore && i18n) bindI18nStore.split(' ').forEach(function (e) {
          return i18n.store.off(e, boundReset);
        });
      };
    }, [i18n, namespaces.join()]);
    var isInitial = useRef(true);
    useEffect(function () {
      if (isMounted.current && !isInitial.current) {
        setT(getT);
      }
  
      isInitial.current = false;
    }, [i18n]);
    var ret = [t, i18n, ready];
    ret.t = t;
    ret.i18n = i18n;
    ret.ready = ready;
    if (ready) return ret;
    if (!ready && !useSuspense) return ret;
    throw new Promise(function (resolve) {
      loadNamespaces(i18n, namespaces, function () {
        resolve();
      });
    });
  }