// Copyright Epic Games, Inc. All Rights Reserved.
// Vendored for FunnyGirlEditor (adapted from UE Persona private SAnimEditorBase).

#pragma once

#include "CoreMinimal.h"
#include "UObject/GCObject.h"
#include "IPersonaPreviewScene.h"
#include "Widgets/SCompoundWidget.h"
#include "PersonaDelegates.h"

class UAnimationAsset;
class UAnimPreviewInstance;

class FUNNYGIRLEDITOR_API SAnimEditorBase : public SCompoundWidget, public FGCObject
{
public:
	SLATE_BEGIN_ARGS(SAnimEditorBase)
		: _DisplayAnimTimeline(true)
		, _DisplayAnimScrubBar(false)
		, _DisplayAnimScrubBarEditing(false)
	{}

	SLATE_EVENT(FOnObjectsSelected, OnObjectsSelected)
	SLATE_ARGUMENT(bool, DisplayAnimTimeline)
	SLATE_ARGUMENT(bool, DisplayAnimScrubBar)
	SLATE_ARGUMENT(bool, DisplayAnimScrubBarEditing)
	SLATE_END_ARGS()

	void Construct(const FArguments& InArgs, const TSharedPtr<IPersonaPreviewScene>& InPreviewScene);

	float GetViewMinInput() const { return ViewMinInput; }
	float GetViewMaxInput() const { return ViewMaxInput; }
	float GetMinInput() const { return 0.0f; }
	float GetMaxInput() const { return GetSequenceLength(); }

	void SetInputViewRange(float InViewMinInput, float InViewMaxInput);
	float GetScrubValue() const;
	void OnSelectionChanged(const TArray<UObject*>& SelectedItems);

	// FGCObject
	virtual void AddReferencedObjects(FReferenceCollector& Collector) override {}
	virtual FString GetReferencerName() const override { return TEXT("FunnyGirlVendoredSAnimEditorBase"); }

	virtual TSharedRef<SWidget> CreateDocumentAnchor();

protected:
	virtual TSharedRef<SWidget> CreateAnimTimelineWidget() = 0;
	virtual TSharedRef<SWidget> ConstructAnimScrubPanel(bool bDisplayAnimScrubBarEditing);
	virtual UAnimationAsset* GetEditorObject() const = 0;
	float GetSequenceLength() const;

	TSharedRef<IPersonaPreviewScene> GetPreviewScene() const { return PreviewScenePtr.Pin().ToSharedRef(); }

protected:
	TWeakPtr<IPersonaPreviewScene> PreviewScenePtr;
	TSharedPtr<SVerticalBox> EditorPanels;
	TSharedPtr<SVerticalBox> NonScrollEditorPanels;
	FOnObjectsSelected OnObjectsSelectedDelegate;
	float ViewMinInput = 0.0f;
	float ViewMaxInput = 0.0f;
};