text: /**
   * 
   * Copyright 2019 Rightech IoT. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  const WebSocket = require('ws');
  
  const rpc = require('./rpc');
  
  const EDGE_CORE_URL = process.env.RIC_EDGE_URL || 'ws://localhost:17080/zigbee';
  
  async function connect() {
    const ws = new WebSocket(EDGE_CORE_URL);
  
    ws.on('message', async data => {
      const result = await rpc.dispatch(data);
      ws.send(JSON.stringify(result));
    });
  
    return new Promise((resolve, reject) => {
      ws.on('error', reject);
  
      ws.on('open', () => {
        console.log('ws connect ok');
        resolve(ws);
      });
    });
  }
  
  module.exports = {
    connect
  };
  