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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _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); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

import { createStore } from 'redux';
import { reduce } from './reducers';
import { createDragDropActions } from './actions/dragDrop';
import { DragDropMonitorImpl } from './DragDropMonitorImpl';
import { HandlerRegistryImpl } from './HandlerRegistryImpl';

function makeStoreInstance(debugMode) {
  // TODO: if we ever make a react-native version of this,
  // we'll need to consider how to pull off dev-tooling
  var reduxDevTools = typeof window !== 'undefined' && window.__REDUX_DEVTOOLS_EXTENSION__;
  return createStore(reduce, debugMode && reduxDevTools && reduxDevTools({
    name: 'dnd-core',
    instanceId: 'dnd-core'
  }));
}

export var DragDropManagerImpl = /*#__PURE__*/function () {
  function DragDropManagerImpl() {
    var _this = this;

    var debugMode = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

    _classCallCheck(this, DragDropManagerImpl);

    this.isSetUp = false;

    this.handleRefCountChange = function () {
      var shouldSetUp = _this.store.getState().refCount > 0;

      if (_this.backend) {
        if (shouldSetUp && !_this.isSetUp) {
          _this.backend.setup();

          _this.isSetUp = true;
        } else if (!shouldSetUp && _this.isSetUp) {
          _this.backend.teardown();

          _this.isSetUp = false;
        }
      }
    };

    var store = makeStoreInstance(debugMode);
    this.store = store;
    this.monitor = new DragDropMonitorImpl(store, new HandlerRegistryImpl(store));
    store.subscribe(this.handleRefCountChange);
  }

  _createClass(DragDropManagerImpl, [{
    key: "receiveBackend",
    value: function receiveBackend(backend) {
      this.backend = backend;
    }
  }, {
    key: "getMonitor",
    value: function getMonitor() {
      return this.monitor;
    }
  }, {
    key: "getBackend",
    value: function getBackend() {
      return this.backend;
    }
  }, {
    key: "getRegistry",
    value: function getRegistry() {
      return this.monitor.registry;
    }
  }, {
    key: "getActions",
    value: function getActions() {
      /* eslint-disable-next-line @typescript-eslint/no-this-alias */
      var manager = this;
      var dispatch = this.store.dispatch;

      function bindActionCreator(actionCreator) {
        return function () {
          for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
            args[_key] = arguments[_key];
          }

          var action = actionCreator.apply(manager, args);

          if (typeof action !== 'undefined') {
            dispatch(action);
          }
        };
      }

      var actions = createDragDropActions(this);
      return Object.keys(actions).reduce(function (boundActions, key) {
        var action = actions[key];
        boundActions[key] = bindActionCreator(action);
        return boundActions;
      }, {});
    }
  }, {
    key: "dispatch",
    value: function dispatch(action) {
      this.store.dispatch(action);
    }
  }]);

  return DragDropManagerImpl;
}();