#ifndef CHUNK_TABLE_H_
#define CHUNK_TABLE_H_

#include "bin.h"

#include <blue/core/btree.h>
#include <blue/core/hash.h>
#include <stdio.h>

struct ec3_tag_reader;
struct ec3_tag_writer;

enum chunk_table_mode {
	CHUNK_TABLE_READ,
	CHUNK_TABLE_WRITE,
};

struct chunk_table {
	enum chunk_table_mode tab_mode;
	unsigned int tab_cluster_size;
	b_btree tab_cache;

	union {
		struct {
			struct ec3_tag_reader *ctab;
			struct ec3_tag_reader *cdat;
		} tab_read;

		struct {
			struct ec3_tag_writer *ctab;
			struct ec3_tag_writer *cdat;
		} tab_write;
	};
};

extern enum ec3_status chunk_table_init_read(
	struct ec3_tag_reader *ctab,
	struct ec3_tag_reader *cdat,
	size_t cluster_size,
	struct chunk_table *tab);
extern enum ec3_status chunk_table_init_write(
	struct ec3_tag_writer *ctab,
	struct ec3_tag_writer *cdat,
	size_t cluster_size,
	struct chunk_table *tab);
extern void chunk_table_finish(struct chunk_table *tab);

extern enum ec3_status chunk_table_get(
	struct chunk_table *tab,
	ec3_chunk_id id,
	void *out_data,
	size_t *out_len);

extern enum ec3_status chunk_table_put(
	struct chunk_table *tab,
	const void *data,
	size_t len,
	ec3_chunk_id out_id);

extern size_t chunk_table_bytes_per_chunk(struct chunk_table *tab);

#endif