#ifndef SLEEP_BITFIELD_H
#define SLEEP_BITFIELD_H
#include <stddef.h>
#include <stdint.h>

#define SLEEP_BITFIELD_DATA_BYTES 1024u
#define SLEEP_BITFIELD_TREE_BYTES 2048u
#define SLEEP_BITFIELD_INDEX_BYTES 256u
#define SLEEP_BITFIELD_RESERVED_BYTES 256u

typedef struct sleep_bitfield {
	uint8_t data[SLEEP_BITFIELD_DATA_BYTES];
	uint8_t tree[SLEEP_BITFIELD_TREE_BYTES];
	uint8_t index[SLEEP_BITFIELD_INDEX_BYTES];
	uint8_t reserved[SLEEP_BITFIELD_RESERVED_BYTES];
} sleep_bitfield_t;

void sleep_bitfield_clear(sleep_bitfield_t *field);
int sleep_bitfield_get_data(const sleep_bitfield_t *field, size_t bit);
int sleep_bitfield_get_tree(const sleep_bitfield_t *field, size_t bit);
int sleep_bitfield_set_data(sleep_bitfield_t *field, size_t bit, int present);
int sleep_bitfield_set_tree(sleep_bitfield_t *field, size_t bit, int present);
void sleep_bitfield_reindex(sleep_bitfield_t *field);
size_t sleep_bitfield_next_data(const sleep_bitfield_t *field, size_t start, int present);
int sleep_bitfield_encode(const sleep_bitfield_t *field, uint8_t *out, size_t capacity);
int sleep_bitfield_decode(sleep_bitfield_t *field, const uint8_t *input, size_t length);
#endif