nim-codex/codex/stores/keyutils.nim

50 lines
1.6 KiB
Nim

## Nim-Codex
## Copyright (c) 2022 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
import pkg/upraises
push: {.upraises: [].}
import std/sugar
import pkg/questionable/results
import pkg/datastore
import pkg/libp2p
import ../namespaces
import ../manifest
const
CodexMetaKey* = Key.init(CodexMetaNamespace).tryGet
CodexRepoKey* = Key.init(CodexRepoNamespace).tryGet
CodexBlocksKey* = Key.init(CodexBlocksNamespace).tryGet
CodexTotalBlocksKey* = Key.init(CodexBlockTotalNamespace).tryGet
CodexManifestKey* = Key.init(CodexManifestNamespace).tryGet
BlocksTtlKey* = Key.init(CodexBlocksTtlNamespace).tryGet
BlockProofKey* = Key.init(CodexBlockProofNamespace).tryGet
QuotaKey* = Key.init(CodexQuotaNamespace).tryGet
QuotaUsedKey* = (QuotaKey / "used").tryGet
QuotaReservedKey* = (QuotaKey / "reserved").tryGet
func makePrefixKey*(postFixLen: int, cid: Cid): ?!Key =
let
cidKey = ? Key.init(($cid)[^postFixLen..^1] & "/" & $cid)
if ? cid.isManifest:
success CodexManifestKey / cidKey
else:
success CodexBlocksKey / cidKey
proc createBlockExpirationMetadataKey*(cid: Cid): ?!Key =
BlocksTtlKey / $cid
proc createBlockExpirationMetadataQueryKey*(): ?!Key =
let queryString = ? (BlocksTtlKey / "*")
Key.init(queryString)
proc createBlockCidAndProofMetadataKey*(treeCid: Cid, index: Natural): ?!Key =
(BlockProofKey / $treeCid).flatMap((k: Key) => k / $index)