#include <stdlib.h>
#include <string.h>
#include "matrix.h"

// TODO Matrix-Funktionen implementieren

Matrix createMatrix(unsigned int rows, unsigned int cols)
{
    if(rows <= 0 || cols <= 0){
        Matrix matrix = { 0 , 0 , UNDEFINED_MATRIX_VALUE };
        return matrix;
    }

    Matrix matrix = { rows , cols };

    matrix.buffer = malloc((sizeof(MatrixType)*rows*cols));

    return matrix;
}

void clearMatrix(Matrix *matrix)
{
   free(matrix->buffer);

    matrix->buffer = NULL;
    matrix->rows = 0;
    matrix->cols = 0;
}

void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
{
    *(matrix.buffer + (rowIdx * matrix.cols + colIdx)) = value;

}

MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
{
    if(matrix.rows <= rowIdx || matrix.cols <= colIdx)
    return UNDEFINED_MATRIX_VALUE;

    MatrixType value;
    value = *(matrix.buffer + (rowIdx * matrix.cols + colIdx));
    return value;
}

Matrix add(const Matrix matrix1, const Matrix matrix2)
{
    return matrix1;
}

Matrix multiply(const Matrix matrix1, const Matrix matrix2)
{
    return matrix1;
}