// Laboratorio 4 - Esercizio 2 - item.h
// Matteo Schiff - s295565

#ifndef ITEM_H_DEFINED
#define ITEM_H_DEFINED

#define CODE_LEN 5
#define STR_LEN 50

typedef struct date_s {
    int day;
    int month;
    int year;
} Date;

typedef struct item_s {
    char code[CODE_LEN+1];
    char name[STR_LEN+1];
    char surname[STR_LEN+1];
    Date date;
    char address[STR_LEN+1];
    char city[STR_LEN+1];
    int cap;
} *Item;

typedef struct node_s *Link;
typedef struct node_s {
    Item val;
    Link next;
} Node;

typedef char* Key;

// Date

int DateGreater(Date a, Date b);

// Item

Item ItemFromString(char *str);
Item ItemRead(FILE * fp);
Key ItemKey(Item item);
int ItemEq(Key x, Key y);
void ItemPrint(FILE *fp, Item x);

// List

Link insertOrderedByDate(Item val, Link head);
Item getItemByCode(Link head, Key key);
void printList(FILE *fp, Link head);
Item extractCode(Link *headp, Key key);
Item extractDates(Link *headp, Date first, Date last);
void freeList(Link head);

#endif