#pragma once

#include "DeckLinkAPI_h.h"

#include <windows.h>

#include <chrono>
#include <functional>
#include <cstdint>

class DeckLinkSession;
class OpenGLRenderer;
class RuntimeHost;

class OpenGLDeckLinkBridge
{
public:
	using RenderEffectCallback = std::function<void()>;
	using PaintCallback = std::function<void()>;

	OpenGLDeckLinkBridge(
		DeckLinkSession& deckLink,
		OpenGLRenderer& renderer,
		RuntimeHost& runtimeHost,
		CRITICAL_SECTION& mutex,
		HDC hdc,
		HGLRC hglrc,
		RenderEffectCallback renderEffect,
		PaintCallback paint);

	void VideoFrameArrived(IDeckLinkVideoInputFrame* inputFrame, bool hasNoInputSource);
	void PlayoutFrameCompleted(IDeckLinkVideoFrame* completedFrame, BMDOutputFrameCompletionResult completionResult);

private:
	void RecordFramePacing(BMDOutputFrameCompletionResult completionResult);

	DeckLinkSession& mDeckLink;
	OpenGLRenderer& mRenderer;
	RuntimeHost& mRuntimeHost;
	CRITICAL_SECTION& mMutex;
	HDC mHdc;
	HGLRC mHglrc;
	RenderEffectCallback mRenderEffect;
	PaintCallback mPaint;
	std::chrono::steady_clock::time_point mLastPlayoutCompletionTime;
	double mCompletionIntervalMilliseconds = 0.0;
	double mSmoothedCompletionIntervalMilliseconds = 0.0;
	double mMaxCompletionIntervalMilliseconds = 0.0;
	uint64_t mLateFrameCount = 0;
	uint64_t mDroppedFrameCount = 0;
	uint64_t mFlushedFrameCount = 0;
};