#include "string_matrix.hpp"

#include <iostream>
#include <ranges>

StringMatrix::StringMatrix(const Bounds &bounds) noexcept
	: _matrix(new std::string_view *[bounds.get_height()]),
	  _row_cnt(bounds.get_height()),
	  _column_cnt(bounds.get_width())
{
	for (gsl::owner<std::string_view **> row = _matrix; row != _matrix + _row_cnt; row++)
	{
		*row = static_cast<gsl::owner<std::string_view *>>(
			new std::string_view[bounds.get_width()]);
	}
};

StringMatrix::StringMatrix(const StringMatrix &string_matrix) noexcept
	: _matrix(new std::string_view *[string_matrix._row_cnt]),
	  _row_cnt(string_matrix._row_cnt),
	  _column_cnt(string_matrix._column_cnt)
{
	_copy_matrix_from(string_matrix);
}

StringMatrix::StringMatrix(StringMatrix &&string_matrix) noexcept
	: _matrix(string_matrix._matrix),
	  _row_cnt(string_matrix._row_cnt),
	  _column_cnt(string_matrix._column_cnt)
{
	string_matrix._matrix = nullptr;
}

StringMatrix::~StringMatrix() noexcept
{
	_delete_matrix();
}

void StringMatrix::fill(std::string_view element) noexcept
{
	for (auto row : *this)
	{
		for (auto &col : row)
		{
			col = element;
		}
	}
}

std::string_view StringMatrix::get(const Vector2 &pos) const noexcept
{

	auto x = static_cast<std::size_t>(pos.get_x());
	auto y = static_cast<std::size_t>(pos.get_y());

	// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
	return _matrix[y][x];
}

void StringMatrix::set(const Vector2 &pos, std::string_view element) noexcept
{
	auto x = static_cast<std::size_t>(pos.get_x());
	auto y = static_cast<std::size_t>(pos.get_y());

	// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
	_matrix[y][x] = element;
}

uint32_t StringMatrix::get_row_cnt() const noexcept
{
	return _row_cnt;
}

uint32_t StringMatrix::get_column_cnt() const noexcept
{
	return _column_cnt;
}

MatrixIterator<std::string_view> StringMatrix::begin() const noexcept
{
	return MatrixIterator(_matrix, _column_cnt);
}

MatrixIterator<std::string_view> StringMatrix::end() const noexcept
{
	return MatrixIterator(_matrix + _row_cnt, _column_cnt);
}

StringMatrix &StringMatrix::operator=(const StringMatrix &rhs) noexcept
{
	if (&rhs != this)
	{
		_delete_matrix();
		_matrix = nullptr;

		_matrix = new std::string_view *[rhs._row_cnt];
		_copy_matrix_from(rhs);
	}

	return *this;
}

StringMatrix &StringMatrix::operator=(StringMatrix &&rhs) noexcept
{
	if (&rhs != this)
	{
		_delete_matrix();
		_matrix = rhs._matrix;
		rhs._matrix = nullptr;
	}

	return *this;
}

void StringMatrix::_delete_matrix() noexcept
{
	for (gsl::owner<std::string_view **> row = _matrix; row != _matrix + _row_cnt; row++)
	{
		delete[](*row);
	}

	delete[] _matrix;
}

void StringMatrix::_copy_matrix_from(const StringMatrix &source) noexcept
{
	gsl::owner<std::string_view **> source_row = source._matrix;

	for (gsl::owner<std::string_view **> row = _matrix; row != _matrix + _row_cnt;
		 row++, source_row++)
	{
		*row = static_cast<gsl::owner<std::string_view *>>(
			new std::string_view[_column_cnt]);

		// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
		auto *end = *source_row + _column_cnt;

		std::copy(*source_row, end, *row);
	}
}