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

#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_MOCK_DATA_CHANNEL_IMPL_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_MOCK_DATA_CHANNEL_IMPL_H_

#include <stdint.h>

#include <string>

#include "base/memory/raw_ptr.h"
#include "base/notreached.h"
#include "third_party/webrtc/api/peer_connection_interface.h"

namespace blink {

// TODO(crbug.com/787254): Move this class out of the Blink API
// when all its clients get Onion souped.
class MockDataChannel : public webrtc::DataChannelInterface {
 public:
  MockDataChannel(const std::string& label,
                  const webrtc::DataChannelInit* config);

  MockDataChannel(const MockDataChannel&) = delete;
  MockDataChannel& operator=(const MockDataChannel&) = delete;

  void RegisterObserver(webrtc::DataChannelObserver* observer) override;
  void UnregisterObserver() override;
  std::string label() const override;
  // Deprecated method.
  // Reliability is controlled by maxPacketLifetime and maxRetransmits.
  bool reliable() const override {
    NOTREACHED();
    return false;  // Not all compilers know this is unreachable.
  }
  bool ordered() const override;
  std::string protocol() const override;
  bool negotiated() const override;
  int id() const override;
  DataState state() const override;
  uint32_t messages_sent() const override;
  uint64_t bytes_sent() const override;
  uint32_t messages_received() const override;
  uint64_t bytes_received() const override;
  uint64_t buffered_amount() const override;
  void Close() override;
  bool Send(const webrtc::DataBuffer& buffer) override;
  void SendAsync(
      webrtc::DataBuffer buffer,
      absl::AnyInvocable<void(webrtc::RTCError) &&> on_complete) override;

  // For testing.
  void changeState(DataState state);

 protected:
  ~MockDataChannel() override;

 private:
  std::string label_;
  webrtc::DataChannelInterface::DataState state_;
  webrtc::DataChannelInit config_;
  raw_ptr<webrtc::DataChannelObserver> observer_;
};

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_PEERCONNECTION_MOCK_DATA_CHANNEL_IMPL_H_