sensorium/src/electronic/four_keys.js

makeblock mainboards protocol api

import {
  validateNumber
} from '../core/validate';
import {
  composer,
  fiterWithBinaryStr
} from '../core/utils';
import Electronic from './electronic';
import protocolAssembler from '../protocol/cmd';
import Control from '../core/control';
import {
  SUPPORTLIST
} from '../settings';

/**
 * FourKeys sensor module
 * @extends Electronic
 */
class FourKeys extends Electronic {
  constructor(port) {
    super();
    this.args = {
      port: validateNumber(port),
      key: 1
    };
  }

  /**
   * 键位
   * @param  {Number} index 键位：1、2、3、4
   */
  key(index) {
    this.args.key = validateNumber(index, this.args.key);
    return this;
  }

  /**
   * getter of protocol
   */
  get protocol() {
    return composer(protocolAssembler.readFourKeys, [this.args.port, this.args.key]);
  }

  /**
   * Get data of FourKeys sensor
   * @return {Promise}
   */
  async getData() {
    return await Control.read(this.protocol);
  }

  static get SUPPORT() {
    return fiterWithBinaryStr(SUPPORTLIST, '1111');
  }
}

export default FourKeys;