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_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nimport { defaults, makePromise } from './utils.js';\nimport request from './request.js';\n\nvar 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undefined ? arguments[2] : {};\n\n    _classCallCheck(this, Backend);\n\n    this.services = services;\n    this.options = options;\n    this.allOptions = allOptions;\n    this.type = 'backend';\n    this.init(services, options, allOptions);\n  }\n\n  _createClass(Backend, [{\n    key: \"init\",\n    value: function init(services) {\n      var _this = this;\n\n      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n      var allOptions = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n      this.services = services;\n      this.options = defaults(options, this.options || {}, getDefaults());\n      this.allOptions = allOptions;\n\n      if (this.services && this.options.reloadInterval) {\n        setInterval(function () {\n          return _this.reload();\n        }, this.options.reloadInterval);\n      }\n    }\n  }, {\n    key: \"readMulti\",\n    value: function readMulti(languages, namespaces, callback) {\n      this._readAny(languages, languages, namespaces, namespaces, callback);\n    }\n  }, {\n    key: \"read\",\n    value: function read(language, namespace, callback) {\n      this._readAny([language], language, [namespace], namespace, callback);\n    }\n  }, {\n    key: \"_readAny\",\n    value: function _readAny(languages, loadUrlLanguages, namespaces, loadUrlNamespaces, callback) {\n      var _this2 = this;\n\n      var loadPath = this.options.loadPath;\n\n      if (typeof this.options.loadPath === 'function') {\n        loadPath = this.options.loadPath(languages, namespaces);\n      }\n\n      loadPath = makePromise(loadPath);\n      loadPath.then(function (resolvedLoadPath) {\n        var url = _this2.services.interpolator.interpolate(resolvedLoadPath, {\n          lng: languages.join('+'),\n          ns: namespaces.join('+')\n        });\n\n        _this2.loadUrl(url, callback, loadUrlLanguages, loadUrlNamespaces);\n      });\n    }\n  }, {\n    key: \"loadUrl\",\n    value: function loadUrl(url, callback, languages, namespaces) {\n      var _this3 = this;\n\n      this.options.request(this.options, url, undefined, function (err, res) {\n        if (res && (res.status >= 500 && res.status < 600 || !res.status)) return callback('failed loading ' + url + '; status code: ' + res.status, true);\n        if (res && res.status >= 400 && res.status < 500) return callback('failed loading ' + url + '; status code: ' + res.status, false);\n        if (!res && err && err.message && err.message.indexOf('Failed to fetch') > -1) return callback('failed loading ' + url + ': ' + err.message, true);\n        if (err) return callback(err, false);\n        var ret, parseErr;\n\n        try {\n          if (typeof res.data === 'string') {\n            ret = _this3.options.parse(res.data, languages, namespaces);\n          } else {\n            ret = res.data;\n          }\n        } catch (e) {\n          parseErr = 'failed parsing ' + url + ' to json';\n        }\n\n        if (parseErr) return callback(parseErr, false);\n        callback(null, ret);\n      });\n    }\n  }, {\n    key: \"create\",\n    value: function create(languages, namespace, key, fallbackValue, callback) {\n      var _this4 = this;\n\n      if (!this.options.addPath) return;\n      if (typeof languages === 'string') languages = [languages];\n      var payload = this.options.parsePayload(namespace, key, fallbackValue);\n      var finished = 0;\n      var dataArray = [];\n      var resArray = [];\n      languages.forEach(function (lng) {\n        var addPath = _this4.options.addPath;\n\n        if (typeof _this4.options.addPath === 'function') {\n          addPath = _this4.options.addPath(lng, namespace);\n        }\n\n        var url = _this4.services.interpolator.interpolate(addPath, {\n          lng: lng,\n          ns: namespace\n        });\n\n        _this4.options.request(_this4.options, url, payload, function (data, res) {\n          finished += 1;\n          dataArray.push(data);\n          resArray.push(res);\n\n          if (finished === languages.length) {\n            if (callback) callback(dataArray, resArray);\n          }\n        });\n      });\n    }\n  }, {\n    key: \"reload\",\n    value: function reload() {\n      var _this5 = this;\n\n      var _this$services = this.services,\n          backendConnector = _this$services.backendConnector,\n          languageUtils = _this$services.languageUtils,\n          logger = _this$services.logger;\n      var currentLanguage = backendConnector.language;\n      if (currentLanguage && currentLanguage.toLowerCase() === 'cimode') return;\n      var toLoad = [];\n\n      var append = function append(lng) {\n        var lngs = languageUtils.toResolveHierarchy(lng);\n        lngs.forEach(function (l) {\n          if (toLoad.indexOf(l) < 0) toLoad.push(l);\n        });\n      };\n\n      append(currentLanguage);\n      if (this.allOptions.preload) this.allOptions.preload.forEach(function (l) {\n        return append(l);\n      });\n      toLoad.forEach(function (lng) {\n        _this5.allOptions.ns.forEach(function (ns) {\n          backendConnector.read(lng, ns, 'read', null, null, function (err, data) {\n            if (err) logger.warn(\"loading namespace \".concat(ns, \" for language \").concat(lng, \" failed\"), err);\n            if (!err && data) logger.log(\"loaded namespace \".concat(ns, \" for language \").concat(lng), data);\n            backendConnector.loaded(\"\".concat(lng, \"|\").concat(ns), err, data);\n          });\n        });\n      });\n    }\n  }]);\n\n  return Backend;\n}();\n\nBackend.type = 'backend';\nexport default Backend;","function _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nimport { defaults, hasXMLHttpRequest } from './utils.js';\nimport * as fetchNode from './getFetch.cjs';\nvar fetchApi;\n\nif (typeof fetch === 'function') {\n  if (typeof global !== 'undefined' && global.fetch) {\n    fetchApi = global.fetch;\n  } else if (typeof window !== 'undefined' && window.fetch) {\n    fetchApi = window.fetch;\n  }\n}\n\nvar XmlHttpRequestApi;\n\nif (hasXMLHttpRequest) {\n  if (typeof global !== 'undefined' && global.XMLHttpRequest) {\n    XmlHttpRequestApi = global.XMLHttpRequest;\n  } else if (typeof window !== 'undefined' && window.XMLHttpRequest) {\n    XmlHttpRequestApi = window.XMLHttpRequest;\n  }\n}\n\nvar ActiveXObjectApi;\n\nif (typeof ActiveXObject === 'function') {\n  if (typeof global !== 'undefined' && global.ActiveXObject) {\n    ActiveXObjectApi = global.ActiveXObject;\n  } else if (typeof window !== 'undefined' && window.ActiveXObject) {\n    ActiveXObjectApi = window.ActiveXObject;\n  }\n}\n\nif (!fetchApi && fetchNode && !XmlHttpRequestApi && !ActiveXObjectApi) fetchApi = fetchNode.default || fetchNode;\nif (typeof fetchApi !== 'function') fetchApi = undefined;\n\nvar addQueryString = function addQueryString(url, params) {\n  if (params && _typeof(params) === 'object') {\n    var queryString = '';\n\n    for (var paramName in params) {\n      queryString += '&' + encodeURIComponent(paramName) + '=' + encodeURIComponent(params[paramName]);\n    }\n\n    if (!queryString) return url;\n    url = url + (url.indexOf('?') !== -1 ? '&' : '?') + queryString.slice(1);\n  }\n\n  return url;\n};\n\nvar requestWithFetch = function requestWithFetch(options, url, payload, callback) {\n  if (options.queryStringParams) {\n    url = addQueryString(url, options.queryStringParams);\n  }\n\n  var headers = defaults({}, typeof options.customHeaders === 'function' ? options.customHeaders() : options.customHeaders);\n  if (payload) headers['Content-Type'] = 'application/json';\n  fetchApi(url, defaults({\n    method: payload ? 'POST' : 'GET',\n    body: payload ? options.stringify(payload) : undefined,\n    headers: headers\n  }, typeof options.requestOptions === 'function' ? options.requestOptions(payload) : options.requestOptions)).then(function (response) {\n    if (!response.ok) return callback(response.statusText || 'Error', {\n      status: response.status\n    });\n    response.text().then(function (data) {\n      callback(null, {\n        status: response.status,\n        data: data\n      });\n    }).catch(callback);\n  }).catch(callback);\n};\n\nvar requestWithXmlHttpRequest = function requestWithXmlHttpRequest(options, url, payload, callback) {\n  if (payload && _typeof(payload) === 'object') {\n    payload = addQueryString('', payload).slice(1);\n  }\n\n  if (options.queryStringParams) {\n    url = addQueryString(url, options.queryStringParams);\n  }\n\n  try {\n    var x;\n\n    if (XmlHttpRequestApi) {\n      x = new XmlHttpRequestApi();\n    } else {\n      x = new ActiveXObjectApi('MSXML2.XMLHTTP.3.0');\n    }\n\n    x.open(payload ? 'POST' : 'GET', url, 1);\n\n    if (!options.crossDomain) {\n      x.setRequestHeader('X-Requested-With', 'XMLHttpRequest');\n    }\n\n    x.withCredentials = !!options.withCredentials;\n\n    if (payload) {\n      x.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');\n    }\n\n    if (x.overrideMimeType) {\n      x.overrideMimeType('application/json');\n    }\n\n    var h = options.customHeaders;\n    h = typeof h === 'function' ? h() : h;\n\n    if (h) {\n      for (var i in h) {\n        x.setRequestHeader(i, h[i]);\n      }\n    }\n\n    x.onreadystatechange = function () {\n      x.readyState > 3 && callback(x.status >= 400 ? x.statusText : null, {\n        status: x.status,\n        data: x.responseText\n      });\n    };\n\n    x.send(payload);\n  } catch (e) {\n    console && console.log(e);\n  }\n};\n\nvar request = function request(options, url, payload, callback) {\n  if (typeof payload === 'function') {\n    callback = payload;\n    payload = undefined;\n  }\n\n  callback = callback || function () {};\n\n  if (fetchApi) {\n    return requestWithFetch(options, url, payload, callback);\n  }\n\n  if (hasXMLHttpRequest || typeof ActiveXObject === 'function') {\n    return requestWithXmlHttpRequest(options, url, payload, callback);\n  }\n};\n\nexport default request;","function _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar arr = [];\nvar each = arr.forEach;\nvar slice = arr.slice;\nexport function defaults(obj) {\n  each.call(slice.call(arguments, 1), function (source) {\n    if (source) {\n      for (var prop in source) {\n        if (obj[prop] === undefined) obj[prop] = source[prop];\n      }\n    }\n  });\n  return obj;\n}\nexport function hasXMLHttpRequest() {\n  return typeof XMLHttpRequest === 'function' || (typeof XMLHttpRequest === \"undefined\" ? \"undefined\" : _typeof(XMLHttpRequest)) === 'object';\n}\n\nfunction isPromise(maybePromise) {\n  return !!maybePromise && typeof maybePromise.then === 'function';\n}\n\nexport function makePromise(maybePromise) {\n  if (isPromise(maybePromise)) {\n    return maybePromise;\n  }\n\n  return Promise.resolve(maybePromise);\n}"],"sourceRoot":""}