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/* Author: Jan Sucan */
#ifndef FRAME_H_
#define FRAME_H_
#include "return_codes.h"
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#define FRAME_MAX_BYTES 254
#define FRAME_MAX_DATA_BYTES 240
typedef struct {
uint8_t raw[FRAME_MAX_BYTES];
} frame_t;
void frame_init (frame_t * const frame, uint8_t protocol_version);
yup_retcode_t frame_receive(frame_t * const frame, uint8_t protocol_version);
void frame_send (frame_t * const frame);
// Protocol version
uint8_t frame_get_protocol_version(const frame_t * const frame);
void frame_set_protocol_version(frame_t * const frame, uint8_t v);
// Flags
void frame_set_flag_ack(frame_t * const frame);
bool frame_is_flag_ack_set(const frame_t * const frame);
void frame_set_flag_rej(frame_t * const frame);
bool frame_is_flag_rej_set(const frame_t * const frame);
void frame_set_flag_lor(frame_t * const frame);
bool frame_is_flag_lor_set(const frame_t * const frame);
// Data length
uint8_t frame_get_data_length(const frame_t * const frame);
void frame_set_data_length(frame_t * const frame, uint8_t v);
// Relation ID
uint16_t frame_get_relation_id(const frame_t * const frame);
void frame_set_relation_id(frame_t * const frame, uint16_t v);
// Seq number
uint16_t frame_get_seq_number(const frame_t * const frame);
void frame_set_seq_number(frame_t * const frame, uint16_t v);
// Header checksum
uint32_t frame_get_header_checksum(const frame_t * const frame);
void frame_set_header_checksum(frame_t * const frame);
// Data
void frame_get_data(const frame_t * const frame, uint8_t * const data, uint8_t * const data_length);
void frame_set_data(frame_t * const frame, const uint8_t * const data, uint8_t num);
// Data checksum
uint32_t frame_get_data_checksum(const frame_t * const frame);
void frame_set_data_checksum(frame_t * const frame);
// Ostatne
uint8_t frame_get_length(const frame_t * const frame);
#endif /* FRAME_H_ */
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