#include "Sudoku.h"

using namespace std;

Sudoku::Sudoku( int n )
{
	vector<int> temp;
	for( unsigned int i=0; i<n*n; i++ )
	{
		temp.push_back(0);
	}
	for( unsigned int i=0; i<n*n; i++ )
	{
		game.push_back( temp );
	}
}

Sudoku::Sudoku( Sudoku const& other )
{
	game = other.get_game();
}

void Sudoku::assign( int row, int col, int number )
{
	game[row][col] = number;
}

int Sudoku::n() const
{
	return n;
}

int Sudoku::n_squared() const
{
	return n*n;
}

void Sudoku::unassign( int row, int col )
{
	game[row][col] = 0;
}

bool Sudoku::is_assigned( int row, int col ) const
{
	if( (game[row][col] != 0) && (row >= 0) && (row < n*n) && (col >= 0) && (col < n*n) )
	{ 
		return true;
	} else
	{
		return false;
	}
}

bool Sudoku::get_number( int row, int col, int & number ) const
{
	if( (game[row][col] != 0) && (row >= 0) && (row < n*n) && (col >= 0) && (col < n*n) )
	{
		return true;
	} else
	{
		return false;
	}
}

//make 3 functions. one to check if in row, one for column, and one for if a number is in the box
bool Sudoku::valid_assignment( int row, int col, int number ) const
{
	return false;
}

void Sudoku::possible_numbers( int row, int col, vector<int> & numbers ) const
{
	if( (row < 0) && (row >= n*n) && (col < 0) && (col >= n*n) )
	{
		for( unsigned int i=0; i<numbers.size(); i++ )
		{
			numbers.clear();
		} 
	} else
	{
		for( unsigned int i=0; i<n*n; i++ )
		{
			numbers.clear();
		}
	}

}

bool Sudoku::is_grid_valid() const
{
	return false;
}