/*
 * Copyright (c) 2020, Armink, <armink.ztl@gmail.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/**
 * @file
 * @brief Public APIs.
 */

#ifndef _FLASHDB_H_
#define _FLASHDB_H_

#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <stdio.h>
#include <time.h>
#include "fdb_cfg.h"

#ifdef FDB_USING_FAL_MODE
#include "fal.h"
#endif

#include "fdb_def.h"

#ifdef __cplusplus
extern "C" {
#endif

/* FlashDB database API */
fdb_err_t fdb_kvdb_init(fdb_kvdb_t db,
                        const char* name,
                        const char* path,
                        struct fdb_default_kv* default_kv,
                        void* user_data);
void fdb_kvdb_control(fdb_kvdb_t db, int cmd, void* arg);
fdb_err_t fdb_kvdb_deinit(fdb_kvdb_t db);
fdb_err_t fdb_tsdb_init(fdb_tsdb_t db,
                        const char* name,
                        const char* path,
                        fdb_get_time get_time,
                        size_t max_len,
                        void* user_data);
void fdb_tsdb_control(fdb_tsdb_t db, int cmd, void* arg);
fdb_err_t fdb_tsdb_deinit(fdb_tsdb_t db);

/* blob API */
fdb_blob_t fdb_blob_make(fdb_blob_t blob,
                         const void* value_buf,
                         size_t buf_len);
size_t fdb_blob_read(fdb_db_t db, fdb_blob_t blob);

/* Key-Value API like a KV DB */
fdb_err_t fdb_kv_set(fdb_kvdb_t db, const char* key, const char* value);
char* fdb_kv_get(fdb_kvdb_t db, const char* key);
fdb_err_t fdb_kv_set_blob(fdb_kvdb_t db, const char* key, fdb_blob_t blob);
size_t fdb_kv_get_blob(fdb_kvdb_t db, const char* key, fdb_blob_t blob);
fdb_err_t fdb_kv_del(fdb_kvdb_t db, const char* key);
fdb_kv_t fdb_kv_get_obj(fdb_kvdb_t db, const char* key, fdb_kv_t kv);
fdb_blob_t fdb_kv_to_blob(fdb_kv_t kv, fdb_blob_t blob);
fdb_err_t fdb_kv_set_default(fdb_kvdb_t db);
void fdb_kv_print(fdb_kvdb_t db);
fdb_kv_iterator_t fdb_kv_iterator_init(fdb_kvdb_t db, fdb_kv_iterator_t itr);
pika_bool fdb_kv_iterate(fdb_kvdb_t db, fdb_kv_iterator_t itr);

/* Time series log API like a TSDB */
fdb_err_t fdb_tsl_append(fdb_tsdb_t db, fdb_blob_t blob);
void fdb_tsl_iter(fdb_tsdb_t db, fdb_tsl_cb cb, void* cb_arg);
void fdb_tsl_iter_reverse(fdb_tsdb_t db, fdb_tsl_cb cb, void* cb_arg);
void fdb_tsl_iter_by_time(fdb_tsdb_t db,
                          fdb_time_t from,
                          fdb_time_t to,
                          fdb_tsl_cb cb,
                          void* cb_arg);
size_t fdb_tsl_query_count(fdb_tsdb_t db,
                           fdb_time_t from,
                           fdb_time_t to,
                           fdb_tsl_status_t status);
fdb_err_t fdb_tsl_set_status(fdb_tsdb_t db,
                             fdb_tsl_t tsl,
                             fdb_tsl_status_t status);
void fdb_tsl_clean(fdb_tsdb_t db);
fdb_blob_t fdb_tsl_to_blob(fdb_tsl_t tsl, fdb_blob_t blob);

/* fdb_utils.c */
uint32_t fdb_calc_crc32(uint32_t crc, const void* buf, size_t size);

#ifdef __cplusplus
}
#endif

#endif /* _FLASHDB_H_ */