playback_cache_scheduler.h

// SPDX-FileCopyrightText: © 2025 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include <chrono>
 
#include "utils/debouncer.h"
#include "utils/expandable_tick_range.h"
#include "utils/qt.h"
 
namespace zrythm::utils
{
class PlaybackCacheScheduler : public QObject
{
  Q_OBJECT
  Q_PROPERTY (bool isPending READ isPending NOTIFY isPendingChanged)
 
public:
  PlaybackCacheScheduler (QObject * parent = nullptr);
 
  Q_INVOKABLE void
  queueCacheRequestForRange (double affectedTickStart, double affectedTickEnd);
 
  Q_INVOKABLE void queueFullCacheRequest ();
 
  Q_INVOKABLE void queueCacheRequest (utils::ExpandableTickRange affectedRange);

  void setDelay (std::chrono::milliseconds delay);
 
  [[nodiscard]] bool isPending () const { return debouncer_->is_pending (); }
 
Q_SIGNALS:
  void cacheRequested (utils::ExpandableTickRange affectedRange);
  void isPendingChanged ();
 
private:
  void execute_pending_request ();
 
private:
  utils::QObjectUniquePtr<utils::Debouncer> debouncer_;
  std::optional<utils::ExpandableTickRange> affected_range_;
};
}