// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you 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.

class CDPConnection {
  constructor(wsConnection) {
    this._wsConnection = wsConnection
    this.cmd_id = 0
    this.targetID = null
    this.sessionId = null
  }

  execute(method, params, callback) {
    let message = {
      method,
      id: this.cmd_id++,
    }
    if (this.sessionId) {
      message['sessionId'] = this.sessionId
    }

    const mergedMessage = Object.assign({ params: params }, message)
    this._wsConnection.send(JSON.stringify(mergedMessage), callback)
  }
}

exports.CdpConnection = CDPConnection