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import EventEmitter from './EventEmitter.js';import * as utils from './utils.js';
class ResourceStore extends EventEmitter {  constructor(data, options = { ns: ['translation'], defaultNS: 'translation' }) {    super();
    this.data = data || {};    this.options = options;    if (this.options.keySeparator === undefined) {      this.options.keySeparator = '.';    }    if (this.options.ignoreJSONStructure === undefined) {      this.options.ignoreJSONStructure = true;    }  }
  addNamespaces(ns) {    if (this.options.ns.indexOf(ns) < 0) {      this.options.ns.push(ns);    }  }
  removeNamespaces(ns) {    const index = this.options.ns.indexOf(ns);    if (index > -1) {      this.options.ns.splice(index, 1);    }  }
  getResource(lng, ns, key, options = {}) {    const keySeparator =      options.keySeparator !== undefined ? options.keySeparator : this.options.keySeparator;
    const ignoreJSONStructure =      options.ignoreJSONStructure !== undefined        ? options.ignoreJSONStructure        : this.options.ignoreJSONStructure;
    let path;    if (lng.indexOf('.') > -1) {      path = lng.split('.');    } else {      path = [lng, ns];      if (key) {        if (Array.isArray(key)) {          path.push(...key);        } else if (typeof key === 'string' && keySeparator) {          path.push(...key.split(keySeparator));        } else {          path.push(key);        }      }    }
    const result = utils.getPath(this.data, path);    if (!result && !ns && !key && lng.indexOf('.') > -1) {      lng = path[0];      ns = path[1];      key = path.slice(2).join('.');    }    if (result || !ignoreJSONStructure || typeof key !== 'string') return result;
    return utils.deepFind(this.data && this.data[lng] && this.data[lng][ns], key, keySeparator);  }
  addResource(lng, ns, key, value, options = { silent: false }) {    const keySeparator =      options.keySeparator !== undefined ? options.keySeparator : this.options.keySeparator;
    let path = [lng, ns];    if (key) path = path.concat(keySeparator ? key.split(keySeparator) : key);
    if (lng.indexOf('.') > -1) {      path = lng.split('.');      value = ns;      ns = path[1];    }
    this.addNamespaces(ns);
    utils.setPath(this.data, path, value);
    if (!options.silent) this.emit('added', lng, ns, key, value);  }
  addResources(lng, ns, resources, options = { silent: false }) {    /* eslint no-restricted-syntax: 0 */    for (const m in resources) {      if (        typeof resources[m] === 'string' ||        Object.prototype.toString.apply(resources[m]) === '[object Array]'      )        this.addResource(lng, ns, m, resources[m], { silent: true });    }    if (!options.silent) this.emit('added', lng, ns, resources);  }
  addResourceBundle(    lng,    ns,    resources,    deep,    overwrite,    options = { silent: false, skipCopy: false },  ) {    let path = [lng, ns];    if (lng.indexOf('.') > -1) {      path = lng.split('.');      deep = resources;      resources = ns;      ns = path[1];    }
    this.addNamespaces(ns);
    let pack = utils.getPath(this.data, path) || {};
    if (!options.skipCopy) resources = JSON.parse(JSON.stringify(resources)); // make a copy to fix #2081
    if (deep) {      utils.deepExtend(pack, resources, overwrite);    } else {      pack = { ...pack, ...resources };    }
    utils.setPath(this.data, path, pack);
    if (!options.silent) this.emit('added', lng, ns, resources);  }
  removeResourceBundle(lng, ns) {    if (this.hasResourceBundle(lng, ns)) {      delete this.data[lng][ns];    }    this.removeNamespaces(ns);
    this.emit('removed', lng, ns);  }
  hasResourceBundle(lng, ns) {    return this.getResource(lng, ns) !== undefined;  }
  getResourceBundle(lng, ns) {    if (!ns) ns = this.options.defaultNS;
    // COMPATIBILITY: remove extend in v2.1.0    if (this.options.compatibilityAPI === 'v1') return { ...{}, ...this.getResource(lng, ns) };
    return this.getResource(lng, ns);  }
  getDataByLanguage(lng) {    return this.data[lng];  }
  hasLanguageSomeTranslations(lng) {    const data = this.getDataByLanguage(lng);    const n = (data && Object.keys(data)) || [];    return !!n.find((v) => data[v] && Object.keys(data[v]).length > 0);  }
  toJSON() {    return this.data;  }}
export default ResourceStore;