// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Use the <code>chrome.copresencePrivate</code> API to interface with Chrome
// from the whispernet_proxy extension.
namespace copresencePrivate {

  dictionary PlayParameters {
    double sampleRate;
    long bitsPerSample;
    double carrierFrequency;
    long repetitions;
  };

  dictionary RecordParameters {
    double sampleRate;
    long bitsPerSample;
    long channels;
    double carrierFrequency;
  };

  dictionary AudioParameters {
    PlayParameters play;
    RecordParameters record;
  };

  dictionary Token {
    DOMString token;
    boolean audible;
  };

  interface Functions {
    // Send a boolean indicating whether our initialization was successful.
    static void sendInitialized(boolean success);
    // Sends an array of found tokens to Chrome.
    static void sendFound(Token[] tokens);
    // Send an array buffer of samples encoded for the specified token.
    static void sendSamples(Token token, ArrayBuffer samples);
    // Send a boolean indicating whether we detected a broadcast or not.
    static void sendDetect(boolean detected);
  };

  interface Events {
    // Fired to request initialization of the whisper.net library.
    static void onInitialize(AudioParameters audioParams);
    // Fired to request encoding of the given token.
    static void onEncodeTokenRequest(DOMString base64Token, boolean audible);
    // Fired when we have new samples to decode.
    static void onDecodeSamplesRequest(ArrayBuffer audioSamples);
    // Fired to request a DetectBroadcast.
    static void onDetectBroadcastRequest();
  };
};