#include <Python.h>
#include <numpy/arrayobject.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include "Py_py-api.h"
#include "genlib.h"
#include "simpio.h"
#include "geostat.h"
#include "toolsIO.h"
#include "toolsFFTMA.h"

/* kgeneration   */
/* 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 */

void  Py_kgeneration(long seed,struct grid_mod grid,struct statistic_mod stat,struct vario_mod variogram,struct realization_mod *Z,struct realization_mod *Y,struct realization_mod *Y1, int n[3])
   {
     int i,N;
     int typelog;


     /*generate Gaussian white noise*/
      N = grid.NX*grid.NY*grid.NZ;
      n[0] = 0;
      n[1] = 0;
      n[2] = 0;




	  generate(&seed,N,Z);
	  /*save the Gaussian white noise file*/
	 // if (*gwnwrite == 0)
	 //   {
	 //     writefile(filename[0],Z);
	 //   }



      /*FFTMA*/
      FFTMA2(variogram,grid,n,Z,Y);

      /*add the statistics*/
      if (stat.mean[0] != 0 || stat.variance[0]!= 1)
	addstat2(Y,stat,Y1,Y);

      /* make a log normal realization */
      if (stat.type==1 || stat.type==2){

	typelog=stat.type+2;
	/* nor2log(Y1,typelog,Y1); */
	nor2log(Y,typelog,Y);
      }

      return;
   }