device_manager.h

// SPDX-FileCopyrightText: © 2025 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include "utils/types.h"
 
#include <QtQmlIntegration>
 
#include <juce_wrapper.h>
 
namespace zrythm::gui::backend
{
class DeviceManager : public QObject, public juce::AudioDeviceManager
{
  Q_OBJECT
  QML_ELEMENT
  QML_UNCREATABLE ("")
 
public:
  using XmlStateGetter = std::function<std::unique_ptr<juce::XmlElement> ()>;
  using XmlStateSetter = std::function<void (const juce::XmlElement &)>;
 
  DeviceManager (XmlStateGetter state_getter, XmlStateSetter state_setter);

  void initialize (
    int  max_input_channels,
    int  max_output_channels,
    bool fallback_to_default);
 
  void save_state ();
 
  // this can be mocked in tests to add a test device
  void createAudioDeviceTypes (
    juce::OwnedArray<juce::AudioIODeviceType> &types) override;
 
  Q_INVOKABLE void showDeviceSelector ();
 
private:
  class DeviceSelectorWindow : public juce::DocumentWindow
  {
  public:
    DeviceSelectorWindow (DeviceManager &dev_manager);
    void closeButtonPressed () override
    {
      dev_manager_.save_state ();
      dev_manager_.device_selector_window_.reset ();
    }
 
  private:
    DeviceManager &dev_manager_;
  };
 
private:
  XmlStateGetter                        state_getter_;
  XmlStateSetter                        state_setter_;
  std::unique_ptr<DeviceSelectorWindow> device_selector_window_;
};
} // namespace zrythm::gui::backend