/**
 * @author NHN Ent. FE Development Team <dl_javascript@nhn.com>
 * @fileoverview Clear all objects
 */
import commandFactory from '../factory/command';
import { Promise } from '../util';
import { commandNames } from '../consts';

const command = {
  name: commandNames.CLEAR_OBJECTS,

  /**
   * Clear all objects without background (main) image
   * @param {Graphics} graphics - Graphics instance
   * @returns {Promise}
   */
  execute(graphics) {
    return new Promise((resolve) => {
      this.undoData.objects = graphics.removeAll();
      resolve();
    });
  },
  /**
   * @param {Graphics} graphics - Graphics instance
   * @returns {Promise}
   * @ignore
   */
  undo(graphics) {
    graphics.add(this.undoData.objects);

    return Promise.resolve();
  },
};

commandFactory.register(command);

export default command;