nim-dagger/tests/codex/helpers/mockdiscovery.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/chronos
import pkg/libp2p
import pkg/questionable
import pkg/questionable/results
import pkg/stew/shims/net
import pkg/codex/discovery

type
  MockDiscovery* = ref object of Discovery
    findBlockProvidersHandler*: proc(d: MockDiscovery, cid: Cid):
      Future[seq[SignedPeerRecord]] {.gcsafe.}
    publishProvideHandler*: proc(d: MockDiscovery, cid: Cid):
      Future[void] {.gcsafe.}

proc new*(
  T: type MockDiscovery,
  localInfo: PeerInfo,
  discoveryPort: Port,
  bootstrapNodes = newSeq[SignedPeerRecord](),
  ): T =

  T()

proc findPeer*(
  d: Discovery,
  peerId: PeerID): Future[?PeerRecord] {.async.} =
  return none(PeerRecord)

method findBlockProviders*(
  d: MockDiscovery,
  cid: Cid): Future[seq[SignedPeerRecord]] {.async.} =
  if isNil(d.findBlockProvidersHandler):
    return

  return await d.findBlockProvidersHandler(d, cid)

method provideBlock*(d: MockDiscovery, cid: Cid): Future[void] {.async.} =
  if isNil(d.publishProvideHandler):
    return

  await d.publishProvideHandler(d, cid)

proc start*(d: Discovery) {.async.} =
  discard

proc stop*(d: Discovery) {.async.} =
  discard