# nimbus-eth1
# Copyright (c) 2021 Status Research & Development GmbH
# Licensed under either of
#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
#    http://www.apache.org/licenses/LICENSE-2.0)
#  * MIT license ([LICENSE-MIT](LICENSE-MIT) or
#    http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed
# except according to those terms.

## Rocks DB fetch data record
## ==========================

{.push raises: [].}

import
  eth/common,
  rocksdb,
  stew/results,
  "../.."/[aristo_constants, aristo_desc],
  ./rdb_desc

# ------------------------------------------------------------------------------
# Public functions
# ------------------------------------------------------------------------------

proc get*(
    rdb: RdbInst;
    key: openArray[byte],
      ): Result[Blob,(AristoError,string)] =
  var res: Blob
  let onData: DataProc = proc(data: openArray[byte]) =
    res = @data
  let rc = rdb.store.get(key, onData)
  if rc.isErr:
    return err((RdbBeDriverGetError,rc.error))
  if not rc.value:
    res = EmptyBlob
  ok res

# ------------------------------------------------------------------------------
# End
# ------------------------------------------------------------------------------