#ifndef DATA__H
#define DATA__H

#include <time.h>

#define NAME_MAX_LENGTH 16
#define MSG_MAX_LENGTH 1024

typedef int UserID;
typedef int MsgID;

typedef char Name[NAME_MAX_LENGTH];
int name_verify(const char* name);

typedef char MsgContent[MSG_MAX_LENGTH];
int msg_verify(const char* content);

typedef struct {
    UserID id;
    Name name;
} UserData;

typedef struct {
    MsgID id;
    UserData author;
    MsgID parent;
    MsgContent content;
    time_t timestamp;
} MsgData;

#endif