#ifndef PREPROCESSING_H
#define PREPROCESSING_H

typedef struct feature Feature;
struct feature
{
    float value;
    Feature *next_feature;
};

typedef struct onehotlabel OneHotLabel;
struct onehotlabel
{
    float value;
    OneHotLabel *next;
};

typedef enum type Type;
enum type
{
    TRAIN = 0 , TEST = 1 , VALID = 2
};

typedef struct sample Sample;
struct sample
{
    Feature *first_feature;
    OneHotLabel *first_hot;
    Sample *next_sample;
    Type t;
};

typedef struct data Data;
struct data
{
    Sample *first_sample;
    Sample *last_sample;
    int size;
};

Feature *init_feature(float value);
OneHotLabel *init_onehotlabel(float value);
Sample *init_sample();
Data *init_data();
void add_sample_to_data(Data *data, Sample *sample);
void destroy_sample(Sample *sample);
void destroy_data(Data *data);
Data *csv_to_samples(char *path_to_csv, int n_features, char *features_separator, float train_percent, char *apply_onthot_encode, int n_classes);
void print_data(const Data *data);

#endif