#ifndef WWS_H_
#define WWS_H_

#include "util.h"

#define ARRSIZE 4096
#define EXITVAL 15326

typedef struct Product Product;
typedef struct Customer Customer;

struct Product {
    int id;
    char* name;
    double price;
    int amount;
};

struct Customer {
    char* name;
    int id;
    // NOTE: Always NULL-initialize this!!
    Product* products[ARRSIZE];
};

// Implementation details
int read_id();
char* read_name();
double read_price();
int read_amount();
int find_first_free_index(Customer customer);
int find_product(Customer customer, int id); // Returns index of product
int find_customer(int id); // Returns index in the customers array

// Top-Level functions
int add_product();
int print_product();
int add_customer();
int print_customer();
int menu();

extern Customer customers[ARRSIZE];

#endif // WWS_H_