//
// C++ Interface: %{MODULE}
//
// Description:
//
//
// Author: %{AUTHOR} <%{EMAIL}>, (C) %{YEAR}
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef POLDERPARASOLFILEDATA_H
#define POLDERPARASOLFILEDATA_H

#include <string.h>
#include <vector>
#include <map>
#include "filedatareader.h"
#include "polder.h"
#include <cmath>
#include <cfloat>
#include "hdfi.h"

#include "parasolleader.h"
#include "parasoldata.h"
#include "parasolfiledata.h"
#include "satellitefiledata.h"

#include "Hdf_sds.hpp"

using namespace std;

/**
@author James MANLEY
*/
class PolderParasolFileData : public FileDataReader, protected PARASOLFileData{
public:
    PolderParasolFileData(const string &name = string(""), const string &mode = string("r"));

    virtual ~PolderParasolFileData();

    virtual void* read_data(void* data,
                            const char* sds_name,
                            int * start=NULL,
                            int * stride=NULL,
                            int *edges=NULL,
                            int rank=-1);

    virtual vector<int> get_dataset_dimension(const string &sds_name);

    void get_dataset_fill_value(const string &sds_name, void* fill_value);

    int get_n_dataset();

    string get_dataset_name(int i);

    int get_dataset_data_type(string sds_name);

    string get_values_attr_dataset(string sds_name,string attr_name);

    bool has_attr_dataset(string sds_name,string attr_name);

    /**
    * @brief closes the file
    */
    void close_data_file();

    /**
    * @brief open the file
    */
    void open_data_file();

    void get_fillValue(const string &sds_name, void *fillValue);

protected:

    short colmin;
    short linemin;
    short colmax;
    short linemax;
    string cursds;

    int fileid;

    string filename;

    /**
    * @brief list of all variables of the product
    */
    string *var_list;

    /**
    * @brief number of variables of the product
    */
    int nb_var_list;

    int size;

    int maxLine;
    int maxColumn;

    void getLatLon(short line, short column, float32 *lat, float32 *lon);
    // *** Ajout B. Six - 24/05/2011 - voir polderparasolfiledata.cpp
    void getLatLon1(short line, short column, float32 *lat, float32 *lon);
    // *** Fin ajout

    short NINT(float32 x);

    void free_read_write_allocations( const bool *are_limits_initialized, int *start, int *stride, int *edges );
    const bool check_read_write_limits(const char* sds_name, int *start, int *stride, int *edges, const int rank);
    void init_read_write_null_input_param(const char* sds_name, int *&start, int *&stride, int *&edges, int &rank, bool * initialized_values);

    float32* read_data_latlon(float32* data, const char* sds_name, int * start, int * stride, int *edges, int rank);
    template<class T>
    T* read_data_T(T* data, const char* sds_name, int * start, int * stride, int *edges, int rank, int type);

    int get_dataset_idtype(string name);

    template <class T> void getFillValues(T &fillvalue);

    virtual void get_scaling(const string &sds_name, float64 &scale, float64 &offset);

    virtual vector<int> get_dataset_full_dimension(const string &sds_name);
};

template <class T>
void PolderParasolFileData::getFillValues(T &fillvalue) {
    if ( typeid(T) == typeid(char8) ) {
        fillvalue = static_cast<T >((T )SCHAR_MIN);
    } else if ( typeid(T) == typeid(uchar8) ) {
        fillvalue = static_cast<T >((T )UCHAR_MAX);
    } else if ( typeid(T) == typeid(int8) ) {
        fillvalue = static_cast<T >((T )SCHAR_MIN);
    } else if ( typeid(T) == typeid(uint8) ) {
        fillvalue = static_cast<T >((T )UCHAR_MAX);
    } else if ( typeid(T) == typeid(int16) ) {
        fillvalue = static_cast<T >((T )SHRT_MIN);
    } else if ( typeid(T) == typeid(uint16) ) {
        fillvalue = static_cast<T >((T )USHRT_MAX);
    } else if ( typeid(T) == typeid(int32) ) {
        fillvalue = static_cast<T >((T )LONG_MIN);
    } else if ( typeid(T) == typeid(uint32) ) {
        fillvalue = static_cast<T >((T )ULONG_MAX);
    } else if ( typeid(T) == typeid(float32) ) {
        fillvalue = static_cast<T >((T )-DBL_MAX);
    } else if ( typeid(T) == typeid(float64) ) {
        fillvalue = static_cast<T >((T )-LDBL_MAX);
    }
}

template<class T>
T* PolderParasolFileData::read_data_T(T* data,
                            const char* sds_name,
                            int * start,
                            int * stride,
                            int *edges,
                            int rank,
                            int type)
{
    bool stride_bool;
    if(stride==NULL) stride_bool=true;
    else stride_bool=false;

    bool are_limits_initialized[3]; // check if start, stride or edges had been initialized in this method
    // --- initialize NULL input parametres ---
    init_read_write_null_input_param(sds_name, start, stride, edges,rank, are_limits_initialized);
    // check the selection limits
    check_read_write_limits(sds_name, start,stride,edges,rank); // throw bad_index in case of probleml

    // read the size of the sds data
    vector<int> dim = get_dataset_dimension(sds_name);

    if(rank==-1) rank = dim.size();

    int osize =1;

    for(int i =0; i<rank;i++){
        osize*=dim[i];
    }
    if (data==NULL) data = static_cast<T*>(malloc(sizeof(T)*osize));
    T fillvalue;
    getFillValues(fillvalue);

    get_dataset_fill_value(sds_name,&fillvalue);
    for(int i=0; i<osize; i++) data[i]=fillvalue;

    T *val= NULL;

    int param_ind = this->data->get_data_entry_index(sds_name)-6;

    if( type == DFNT_UINT8){
        ExtractVariable_Var_Byte(fileid, (unsigned char**)&val, param_ind);
    }else if( type == DFNT_UINT16){
        ExtractVariable_Var_Short(fileid, (unsigned short**)&val, param_ind);
    }else if( type == DFNT_UINT32){
        ExtractVariable_Var_Int(fileid, (unsigned int**)&val, param_ind);
    }else{
        ExtractVariable_Var(fileid, (float**)&val, param_ind);
    }

    short *line= NULL;

    ExtractVariable_Grid(fileid, &line, &size, LINE);

    short *col= NULL;

    ExtractVariable_Grid(fileid, &col, &size, COLUMN);

    T **oval = NULL;

    oval = (T**)&data;

    short l,c;


       if(stride_bool){

            for(int i=0; i<size; i++){
                c=col[i]-colmin;
                l=line[i]-linemin;

                if(c>=start[0] && c<edges[0] && l>=start[1] && l<edges[1] ){
                    (*oval)[c * dim[1] + l] = val[i];
                }
            }

        }else{


            for(int i=0; i<size; i++){
                c=col[i]-colmin;
                l=line[i]-linemin;

                if(c>=start[0] && c<edges[0] && l>=start[1] && l<edges[1] ){
                    if(l%stride[0]==0 && c%stride[1]==0){
                        (*oval)[c * dim[1] + l] = val[i];
                    }
                }
            }
        }

    free(line);

    free(col);

    // free the ressources allocated by this method
    free_read_write_allocations(are_limits_initialized, start, stride, edges);

    return data;

}
#endif