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Current File : /home/tjamichg/cursos.tjamich.gob.mx/web/assets/i18next/src/i18next.js

import baseLogger from './logger.js';
import EventEmitter from './EventEmitter.js';
import ResourceStore from './ResourceStore.js';
import Translator from './Translator.js';
import LanguageUtils from './LanguageUtils.js';
import PluralResolver from './PluralResolver.js';
import Interpolator from './Interpolator.js';
import BackendConnector from './BackendConnector.js';
import { get as getDefaults, transformOptions } from './defaults.js';
import postProcessor from './postProcessor.js';
import { defer, isIE10 } from './utils.js';

function noop() { }

class I18n extends EventEmitter {
  constructor(options = {}, callback) {
    super();
    if (isIE10) {
      EventEmitter.call(this) // <=IE10 fix (unable to call parent constructor)
    }

    this.options = transformOptions(options);
    this.services = {};
    this.logger = baseLogger;
    this.modules = { external: [] };

    if (callback && !this.isInitialized && !options.isClone) {
      // https://github.com/i18next/i18next/issues/879
      if (!this.options.initImmediate) {
        this.init(options, callback);
        return this;
      }
      setTimeout(() => {
        this.init(options, callback);
      }, 0);
    }
  }

  init(options = {}, callback) {
    if (typeof options === 'function') {
      callback = options;
      options = {};
    }

    // temporal backwards compatibility WHITELIST REMOVAL
    if (options.whitelist && !options.supportedLngs) {
      this.logger.deprecate('whitelist', 'option "whitelist" will be renamed to "supportedLngs" in the next major - please make sure to rename this option asap.');
    }
    if (options.nonExplicitWhitelist && !options.nonExplicitSupportedLngs) {
      this.logger.deprecate('whitelist', 'options "nonExplicitWhitelist" will be renamed to "nonExplicitSupportedLngs" in the next major - please make sure to rename this option asap.');
    }
    // end temporal backwards compatibility WHITELIST REMOVAL


    this.options = { ...getDefaults(), ...this.options, ...transformOptions(options) };

    this.format = this.options.interpolation.format;
    if (!callback) callback = noop;

    function createClassOnDemand(ClassOrObject) {
      if (!ClassOrObject) return null;
      if (typeof ClassOrObject === 'function') return new ClassOrObject();
      return ClassOrObject;
    }

    // init services
    if (!this.options.isClone) {
      if (this.modules.logger) {
        baseLogger.init(createClassOnDemand(this.modules.logger), this.options);
      } else {
        baseLogger.init(null, this.options);
      }

      const lu = new LanguageUtils(this.options);
      this.store = new ResourceStore(this.options.resources, this.options);

      const s = this.services;
      s.logger = baseLogger;
      s.resourceStore = this.store;
      s.languageUtils = lu;
      s.pluralResolver = new PluralResolver(lu, {
        prepend: this.options.pluralSeparator,
        compatibilityJSON: this.options.compatibilityJSON,
        simplifyPluralSuffix: this.options.simplifyPluralSuffix,
      });
      s.interpolator = new Interpolator(this.options);
      s.utils = {
        hasLoadedNamespace: this.hasLoadedNamespace.bind(this)
      }

      s.backendConnector = new BackendConnector(
        createClassOnDemand(this.modules.backend),
        s.resourceStore,
        s,
        this.options,
      );
      // pipe events from backendConnector
      s.backendConnector.on('*', (event, ...args) => {
        this.emit(event, ...args);
      });

      if (this.modules.languageDetector) {
        s.languageDetector = createClassOnDemand(this.modules.languageDetector);
        s.languageDetector.init(s, this.options.detection, this.options);
      }

      if (this.modules.i18nFormat) {
        s.i18nFormat = createClassOnDemand(this.modules.i18nFormat);
        if (s.i18nFormat.init) s.i18nFormat.init(this);
      }

      this.translator = new Translator(this.services, this.options);
      // pipe events from translator
      this.translator.on('*', (event, ...args) => {
        this.emit(event, ...args);
      });

      this.modules.external.forEach(m => {
        if (m.init) m.init(this);
      });
    }

    if (!this.modules.languageDetector && !this.options.lng) {
      this.logger.warn('init: no languageDetector is used and no lng is defined');
    }

    // append api
    const storeApi = [
      'getResource',
      'addResource',
      'addResources',
      'addResourceBundle',
      'removeResourceBundle',
      'hasResourceBundle',
      'getResourceBundle',
      'getDataByLanguage',
    ];
    storeApi.forEach(fcName => {
      this[fcName] = (...args) => this.store[fcName](...args);
    });

    const deferred = defer();

    const load = () => {
      this.changeLanguage(this.options.lng, (err, t) => {
        this.isInitialized = true;
        this.logger.log('initialized', this.options);
        this.emit('initialized', this.options);

        deferred.resolve(t); // not rejecting on err (as err is only a loading translation failed warning)
        callback(err, t);
      });
    };

    if (this.options.resources || !this.options.initImmediate) {
      load();
    } else {
      setTimeout(load, 0);
    }

    return deferred;
  }

  /* eslint consistent-return: 0 */
  loadResources(language, callback = noop) {
    let usedCallback = callback;
    let usedLng = typeof language === 'string' ? language : this.language;
    if (typeof language === 'function') usedCallback = language;

    if (!this.options.resources || this.options.partialBundledLanguages) {
      if (usedLng && usedLng.toLowerCase() === 'cimode') return usedCallback(); // avoid loading resources for cimode

      const toLoad = [];

      const append = lng => {
        if (!lng) return;
        const lngs = this.services.languageUtils.toResolveHierarchy(lng);
        lngs.forEach(l => {
          if (toLoad.indexOf(l) < 0) toLoad.push(l);
        });
      };

      if (!usedLng) {
        // at least load fallbacks in this case
        const fallbacks = this.services.languageUtils.getFallbackCodes(this.options.fallbackLng);
        fallbacks.forEach(l => append(l));
      } else {
        append(usedLng);
      }

      if (this.options.preload) {
        this.options.preload.forEach(l => append(l));
      }

      this.services.backendConnector.load(toLoad, this.options.ns, usedCallback);
    } else {
      usedCallback(null);
    }
  }

  reloadResources(lngs, ns, callback) {
    const deferred = defer();
    if (!lngs) lngs = this.languages;
    if (!ns) ns = this.options.ns;
    if (!callback) callback = noop;
    this.services.backendConnector.reload(lngs, ns, err => {
      deferred.resolve(); // not rejecting on err (as err is only a loading translation failed warning)
      callback(err);
    });
    return deferred;
  }

  use(module) {
    if (!module) throw new Error('You are passing an undefined module! Please check the object you are passing to i18next.use()')
    if (!module.type) throw new Error('You are passing a wrong module! Please check the object you are passing to i18next.use()')

    if (module.type === 'backend') {
      this.modules.backend = module;
    }

    if (module.type === 'logger' || (module.log && module.warn && module.error)) {
      this.modules.logger = module;
    }

    if (module.type === 'languageDetector') {
      this.modules.languageDetector = module;
    }

    if (module.type === 'i18nFormat') {
      this.modules.i18nFormat = module;
    }

    if (module.type === 'postProcessor') {
      postProcessor.addPostProcessor(module);
    }

    if (module.type === '3rdParty') {
      this.modules.external.push(module);
    }

    return this;
  }

  changeLanguage(lng, callback) {
    this.isLanguageChangingTo = lng;
    const deferred = defer();
    this.emit('languageChanging', lng);

    const done = (err, l) => {
      if (l) {
        this.language = l;
        this.languages = this.services.languageUtils.toResolveHierarchy(l);
        this.translator.changeLanguage(l);
        this.isLanguageChangingTo = undefined;
        this.emit('languageChanged', l);
        this.logger.log('languageChanged', l);
      } else {
        this.isLanguageChangingTo = undefined;
      }

      deferred.resolve((...args) => this.t(...args));
      if (callback) callback(err, (...args) => this.t(...args));
    };

    const setLng = lngs => {
      // depending on API in detector lng can be a string (old) or an array of languages ordered in priority
      const l = typeof lngs === 'string' ? lngs : this.services.languageUtils.getBestMatchFromCodes(lngs);

      if (l) {
        if (!this.language) {
          this.language = l;
          this.languages = this.services.languageUtils.toResolveHierarchy(l);
        }
        if (!this.translator.language) this.translator.changeLanguage(l);

        if (this.services.languageDetector) this.services.languageDetector.cacheUserLanguage(l);
      }

      this.loadResources(l, err => {
        done(err, l);
      });
    };

    if (!lng && this.services.languageDetector && !this.services.languageDetector.async) {
      setLng(this.services.languageDetector.detect());
    } else if (!lng && this.services.languageDetector && this.services.languageDetector.async) {
      this.services.languageDetector.detect(setLng);
    } else {
      setLng(lng);
    }

    return deferred;
  }

  getFixedT(lng, ns) {
    const fixedT = (key, opts, ...rest) => {
      let options;
      if (typeof opts !== 'object') {
        options = this.options.overloadTranslationOptionHandler([key, opts].concat(rest));
      } else {
        options = { ...opts };
      }

      options.lng = options.lng || fixedT.lng;
      options.lngs = options.lngs || fixedT.lngs;
      options.ns = options.ns || fixedT.ns;
      return this.t(key, options);
    };
    if (typeof lng === 'string') {
      fixedT.lng = lng;
    } else {
      fixedT.lngs = lng;
    }
    fixedT.ns = ns;
    return fixedT;
  }

  t(...args) {
    return this.translator && this.translator.translate(...args);
  }

  exists(...args) {
    return this.translator && this.translator.exists(...args);
  }

  setDefaultNamespace(ns) {
    this.options.defaultNS = ns;
  }

  hasLoadedNamespace(ns, options = {}) {
    if (!this.isInitialized) {
      this.logger.warn('hasLoadedNamespace: i18next was not initialized', this.languages);
      return false;
    }
    if (!this.languages || !this.languages.length) {
      this.logger.warn('hasLoadedNamespace: i18n.languages were undefined or empty', this.languages);
      return false;
    }

    const lng = this.languages[0];
    const fallbackLng = this.options ? this.options.fallbackLng : false;
    const lastLng = this.languages[this.languages.length - 1];

    // we're in cimode so this shall pass
    if (lng.toLowerCase() === 'cimode') return true;

    const loadNotPending = (l, n) => {
      const loadState = this.services.backendConnector.state[`${l}|${n}`];
      return loadState === -1 || loadState === 2;
    };

    // optional injected check
    if (options.precheck) {
      const preResult = options.precheck(this, loadNotPending);
      if (preResult !== undefined) return preResult;
    }

    // loaded -> SUCCESS
    if (this.hasResourceBundle(lng, ns)) return true;

    // were not loading at all -> SEMI SUCCESS
    if (!this.services.backendConnector.backend) return true;

    // failed loading ns - but at least fallback is not pending -> SEMI SUCCESS
    if (loadNotPending(lng, ns) && (!fallbackLng || loadNotPending(lastLng, ns))) return true;

    return false;
  }

  loadNamespaces(ns, callback) {
    const deferred = defer();

    if (!this.options.ns) {
      callback && callback();
      return Promise.resolve();
    }
    if (typeof ns === 'string') ns = [ns];

    ns.forEach(n => {
      if (this.options.ns.indexOf(n) < 0) this.options.ns.push(n);
    });

    this.loadResources(err => {
      deferred.resolve();
      if (callback) callback(err);
    });

    return deferred;
  }

  loadLanguages(lngs, callback) {
    const deferred = defer();

    if (typeof lngs === 'string') lngs = [lngs];
    const preloaded = this.options.preload || [];

    const newLngs = lngs.filter(lng => preloaded.indexOf(lng) < 0);
    // Exit early if all given languages are already preloaded
    if (!newLngs.length) {
      if (callback) callback();
      return Promise.resolve();
    }

    this.options.preload = preloaded.concat(newLngs);
    this.loadResources(err => {
      deferred.resolve();
      if (callback) callback(err);
    });

    return deferred;
  }

  dir(lng) {
    if (!lng) lng = this.languages && this.languages.length > 0 ? this.languages[0] : this.language;
    if (!lng) return 'rtl';

    const rtlLngs = [
      'ar',
      'shu',
      'sqr',
      'ssh',
      'xaa',
      'yhd',
      'yud',
      'aao',
      'abh',
      'abv',
      'acm',
      'acq',
      'acw',
      'acx',
      'acy',
      'adf',
      'ads',
      'aeb',
      'aec',
      'afb',
      'ajp',
      'apc',
      'apd',
      'arb',
      'arq',
      'ars',
      'ary',
      'arz',
      'auz',
      'avl',
      'ayh',
      'ayl',
      'ayn',
      'ayp',
      'bbz',
      'pga',
      'he',
      'iw',
      'ps',
      'pbt',
      'pbu',
      'pst',
      'prp',
      'prd',
      'ug',
      'ur',
      'ydd',
      'yds',
      'yih',
      'ji',
      'yi',
      'hbo',
      'men',
      'xmn',
      'fa',
      'jpr',
      'peo',
      'pes',
      'prs',
      'dv',
      'sam',
    ];

    return rtlLngs.indexOf(this.services.languageUtils.getLanguagePartFromCode(lng)) >= 0
      ? 'rtl'
      : 'ltr';
  }

  /* eslint class-methods-use-this: 0 */
  createInstance(options = {}, callback) {
    return new I18n(options, callback);
  }

  cloneInstance(options = {}, callback = noop) {
    const mergedOptions = { ...this.options, ...options, ...{ isClone: true } };
    const clone = new I18n(mergedOptions);
    const membersToCopy = ['store', 'services', 'language'];
    membersToCopy.forEach(m => {
      clone[m] = this[m];
    });
    clone.services = { ...this.services };
    clone.services.utils = {
      hasLoadedNamespace: clone.hasLoadedNamespace.bind(clone)
    };
    clone.translator = new Translator(clone.services, clone.options);
    clone.translator.on('*', (event, ...args) => {
      clone.emit(event, ...args);
    });
    clone.init(mergedOptions, callback);
    clone.translator.options = clone.options; // sync options
    clone.translator.backendConnector.services.utils = {
      hasLoadedNamespace: clone.hasLoadedNamespace.bind(clone)
    };

    return clone;
  }
}

export default new I18n();

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