#ifndef OS_H
#define OS_H

#include "core.h"

// ### Memory ###
void *os_alloc(size_t capacity);
void os_reserve(void *ptr);
void os_decommit(void *ptr);
void os_free(void *ptr, size_t freeSize);

// ### File IO ###
string os_readEntireFile(Arena *arena, string filename);
bool os_writeEntireFile(Arena *arena, string filename, const byte *contents, size_t contentsLength);
bool os_fileAppend(Arena *arena, string filename, const byte *contents, size_t contentsLength);

// ### Standard IO ###
void os_print(StdStream target, const char *fmt, va_list argList);

// ### Multithreading ###
typedef struct OS_Thread OS_Thread;
struct OS_Thread {
    uint64 id;
};

OS_Thread os_createThread(void *(*entry)(void *ctx), void *ctx);

// ### Network I/O ###
typedef struct Address Address;
struct Address;

typedef struct Socket Socket;
struct Socket;

typedef struct Client Client;
struct Client {
    Address *clientAddressData;
    Socket *socket;
};
DefineList(Client, Client);

typedef struct Server Server;
struct Server {
    Arena *arena;
    Address *serverAddressData;
    uint32 serverPort;
    Socket *socket;
    ClientList clients;
    bool listening;
};

typedef struct ServerInitInfo ServerInitInfo;
struct ServerInitInfo {
    uint16 port;
    uint32 concurrentClients;
    uint64 memory;
};

Server serverInit(ServerInitInfo info);
void serverListen(Server *s);
Client *serverAccept(Server *s);
void serverClose(Server *s);

uint64 clientRead(Client *client, void *dest, size_t bytes);
void clientWrite(Client *client);
void clientClose(Client *client);

#endif