#include <Python.h>
#include <numpy/arrayobject.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <math.h>
#include "Py_py-api.h"
#include "genlib.h"
#include "simpio.h"
#include "condor.h"
#include "geostat.h"
#include "toolsIO.h"
#include "toolsFFTMA.h"
#include "pressure.h"
#include "toolsFFTPSIM.h"
#define NDIMENSIONS 3

/* Z is the GWN with 0-mean and 1-variance */
/* Y1  is the realization with 0-mean and variance wanted */
/* Y is the realization with mean and variance wanted */

static PyObject* genFunc(PyObject* self, PyObject* args)
{
	int n[3];
	struct realization_mod Z,Y,Y1;
	struct grid_mod grid;
	struct vario_mod variogram;
	long seed;
	struct statistic_mod stat;
	PyObject* out_array;
	npy_intp out_dims[NPY_MAXDIMS];

	printf("estoy edsn genfunc");


	if(!Py_getvalues(args, &seed, &grid, &variogram, &stat)) return NULL;
	Py_kgeneration(seed,grid,stat,variogram,&Z,&Y,&Y1,n);

	out_dims[0]=grid.NZ;
	out_dims[1]=grid.NY;
	out_dims[2]=grid.NX;



	out_array = PyArray_SimpleNewFromData(NDIMENSIONS,out_dims,NPY_DOUBLE,Y.vector);
	if (out_array == NULL)
		return NULL;

	PyArray_ENABLEFLAGS(out_array, NPY_ARRAY_OWNDATA);

	return out_array;

}


static PyMethodDef FFTMAMethods[]=
{
	{"gen", genFunc, METH_VARARGS, "Generates a permeability 3D field."},
	{NULL, NULL, 0, NULL}
};

static struct PyModuleDef cFFTMADef =
{
    PyModuleDef_HEAD_INIT,
    "FFTMA", "",
    -1,
    FFTMAMethods
};

PyMODINIT_FUNC
PyInit_FFTMA(void)
{
	import_array();
	return PyModule_Create(&cFFTMADef);
}