#pragma once

#include "Utils/Vector.hpp"
#include "Utils/VectorHash.hpp"

#include <string>
#include <vector>

class TableCell
{
public:
	enum TextAlignment
	{
		/// For horizontal alignment, this means align left. For vertical alignment, this means align top.
		AlignAxisMin,
		/// Align middle of the text to the middle of the axis.
		AlignCenter,
		/// For horizontal alignment, this means align right. For vertical alignment, this means align bottom.
		AlignAxisMax,
	};

	enum CellType
	{
		ConstantCell,
		ParametricCell,
	};

public:
	std::string Content;
	Vec2i Location;
	/// Location of the primary (top left) cell, if this cell is a part of a merged group.
	/// Otherwise, either component of this field shall be -1.
	Vec2i PrimaryCellLocation;
	int SpanX;
	int SpanY;
	TextAlignment HorizontalAlignment = AlignAxisMin;
	TextAlignment VerticalAlignment = AlignAxisMin;
	CellType Type;

public:
	bool IsPrimaryCell() const;
	bool IsMergedCell() const;
};

class TableArrayParameterGroup
{
public:
	enum ExpansionDirection
	{
		ExpandUp,
		ExpandDown,
		ExpandLeft,
		ExpandRight,
	};

public:
	ExpansionDirection ExpandDirection;
};

class TableTemplate
{
private:
	std::vector<TableCell> mCells;
	std::vector<TableArrayParameterGroup> mArrayGroups;
	int mTableWidth;
	int mTableHeight;

public:
	int GetTableWidth() const;
	int GetTableHeight() const;
	void Resize(int newWidth, int newHeight);

	const TableCell& GetCell(Vec2i pos) const;
	TableCell& GetCell(Vec2i pos);

	enum MergeCellsResult
	{
		MCR_CellAlreadyMerged,
		MCR_Success,
	};
	MergeCellsResult MergeCells(Vec2i topLeft, Vec2i bottomRight);

	enum BreakCellsResult
	{
		BCR_CellNotMerged,
		BCR_Success,
	};
	BreakCellsResult BreakCells(Vec2i topLeft);
};