#ifndef NBD_NBTPD_HANDLERS_H
#define NBD_NBTPD_HANDLERS_H

#include <netinet/in.h>
#include "packet.h"

#define NBD_NBTPD_ARGS_PATH_MAX 768
#define NBD_NBTPD_ARGS_MODE_MAX 32

typedef enum opmode {
	NOT_FOUND,
	NETASCII,
	OCTAL,
	MAIL
// any additional modes
} nbd_opmode;

typedef struct {
	char path[NBD_NBTPD_ARGS_PATH_MAX];
	char mode[NBD_NBTPD_ARGS_MODE_MAX];
	nbd_tftp_ecode err;
	struct sockaddr_in client;
} nbd_nbtpd_args;

nbd_opmode get_mode(char *mode);


/*!
 *  WARNING: use this only if you know what you are doing
 *  The actual function signature is `void read_req_resp(nbd_nbtpd_args *args)`
 *  Invoke this function as a response to getting a new read request.
 *  It opens a new UDP socket and reads file to transmit.
 *  ```c
 *  nbd_nbtpd_args *args = malloc(sizeof(nbd_nbtpd_args));
 *  pthread_create(thread, attrs, read_req_resp, (void *)args);
 *  ```
 */
void *read_req_resp(void *args);
/*!
 *  WARNING: use this only if you know what you are doing
 *  The actual function signature is `void write_req_resp(nbd_nbtpd_args *args)`
 *  Invoke this function as a response to getting a new write request.
 *  It opens a new UDP socket, receives file to write to disk.
 *  ```c
 *  nbd_nbtpd_args *args = malloc(sizeof(nbd_nbtpd_args));
 *  pthread_create(thread, attrs, write_req_resp, (void *)args);
 *  ```
 */
void *write_req_resp(void *args);
/// WARNING: use this only if you know what you are doing
void *nbd_nbtpd_resp_error(void *args);

#endif