mock_hardware_audio_interface.h

// SPDX-FileCopyrightText: © 2026 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include <cassert>
 
#include "dsp/hardware_audio_interface.h"
#include "dsp/iaudio_callback.h"
 
namespace zrythm::test_helpers
{

class MockHardwareAudioInterface : public dsp::IHardwareAudioInterface
{
public:
  explicit MockHardwareAudioInterface (
    units::sample_rate_t sample_rate = units::sample_rate (48000),
    units::sample_u32_t  block_length = units::samples (256))
      : sample_rate_ (sample_rate), block_length_ (block_length)
  {
  }
 
  [[nodiscard]] units::sample_u32_t get_block_length () const override
  {
    return block_length_;
  }
  [[nodiscard]] units::sample_rate_t get_sample_rate () const override
  {
    return sample_rate_;
  }
 
  void add_audio_callback (dsp::IAudioCallback * callback) override
  {
    assert (callback_ == nullptr);
    callback_ = callback;
    if (callback_ != nullptr)
      {
        callback_->about_to_start ();
      }
  }
 
  void remove_audio_callback (dsp::IAudioCallback * callback) override
  {
    assert (callback == callback_);
    if (callback_ != nullptr)
      {
        callback_->stopped ();
      }
    callback_ = nullptr;
  }
 
private:
  units::sample_rate_t  sample_rate_;
  units::sample_u32_t   block_length_;
  dsp::IAudioCallback * callback_ = nullptr;
};
 
} // namespace zrythm::test_helpers