// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "ProjectFish/DataAsset/ShapeAsset.h"

DECLARE_DELEGATE_TwoParams(FOnSlotClicked, int32, int32);
/**
 * 
 */
class SShapeGridWidget : public SCompoundWidget
{
public:
	SLATE_BEGIN_ARGS(SShapeGridWidget) {}
	SLATE_ARGUMENT(UShapeAsset*, BagShapeAsset)
	SLATE_EVENT(FOnSlotClicked, OnSlotClicked)
SLATE_END_ARGS()

	void Construct(const FArguments& InArgs);

	void UpdateBagShapeAsset(UShapeAsset* InBagShapeAsset);

	// SWidget interface
	virtual FReply OnMouseButtonDown(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
	virtual int32 OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect,
		FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const override;
	virtual FVector2D ComputeDesiredSize(float) const override;

private:
	static const float CellSize;
	static const float SeparatorWidth;

	TWeakObjectPtr<UShapeAsset> BagShapeAsset;
	FOnSlotClicked OnSlotClicked;

	FVector2D GetGridCellFromPosition(const FVector2D& Position) const;
	bool IsValidGridPosition(int32 X, int32 Y) const;
};