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/*eslint-disable */
/* jscs:disable */
define(["jquery", "Magento_PageBuilder/js/utils/object"], function (_jquery, _object) {
  /**
   * Copyright © Magento, Inc. All rights reserved.
   * See COPYING.txt for license details.
   */
  var DataStore = /*#__PURE__*/function () {
    "use strict";

    function DataStore() {
      this.state = {};
      this.events = (0, _jquery)({});
      this.previousState = {};
    }

    var _proto = DataStore.prototype;

    /**
     * Retrieve specific data from the data store
     *
     * @param {string} key
     * @param defaultValue
     * @returns {T}
     */
    _proto.get = function get(key, defaultValue) {
      return (0, _object.get)(this.state, key, defaultValue);
    }
    /**
     * Retrieve the entire state of the data object
     *
     * @returns {DataObject}
     */
    ;

    _proto.getState = function getState() {
      return this.state;
    }
    /**
     * Retrieve the entire previous state of the data object
     *
     * @returns {DataObject}
     */
    ;

    _proto.getPreviousState = function getPreviousState() {
      return this.previousState;
    }
    /**
     * Set a specific keys value in the data store
     *
     * @param {string} key
     * @param value
     */
    ;

    _proto.set = function set(key, value) {
      this.previousState = Object.assign({}, this.state);
      (0, _object.set)(this.state, key, value);
      this.emitState();
    }
    /**
     * Update the entire state for the content type
     *
     * @param {DataObject} state
     */
    ;

    _proto.setState = function setState(state) {
      this.previousState = Object.assign({}, this.state);
      this.state = state;
      this.emitState();
    }
    /**
     * Remove item from DataStore
     *
     * @param {string | number} key
     */
    ;

    _proto.unset = function unset(key) {
      var storeState = this.state;
      delete storeState[key];
      this.setState(storeState);
    }
    /**
     * Subscribe to data changes within the data store of a content type
     *
     * @param {(state: DataObject, event: Event) => void} handler
     * @param {string | number} key
     */
    ;

    _proto.subscribe = function subscribe(handler, key) {
      var _this = this;

      this.events.on("state", function (event, data) {
        if (key) {
          if (_this.previousState[key] !== data.state[key]) {
            handler(data.state, event);
          }
        } else {
          if (_this.previousState !== data.state) {
            handler(data.state, event);
          }
        }
      });
    }
    /**
     * Emit state updates through events
     */
    ;

    _proto.emitState = function emitState() {
      this.events.trigger("state", {
        state: this.state
      });
    };

    return DataStore;
  }();

  return DataStore;
});
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