nim-codex/codex/contracts/market.nim

404 lines
14 KiB
Nim

import std/sequtils
import std/strutils
import std/sugar
import pkg/ethers
import pkg/upraises
import pkg/questionable
import ../utils/exceptions
import ../logutils
import ../market
import ./marketplace
import ./proofs
export market
logScope:
topics = "marketplace onchain market"
type
OnChainMarket* = ref object of Market
contract: Marketplace
signer: Signer
rewardRecipient: ?Address
MarketSubscription = market.Subscription
EventSubscription = ethers.Subscription
OnChainMarketSubscription = ref object of MarketSubscription
eventSubscription: EventSubscription
func new*(
_: type OnChainMarket,
contract: Marketplace,
rewardRecipient = Address.none): OnChainMarket =
without signer =? contract.signer:
raiseAssert("Marketplace contract should have a signer")
OnChainMarket(
contract: contract,
signer: signer,
rewardRecipient: rewardRecipient
)
proc raiseMarketError(message: string) {.raises: [MarketError].} =
raise newException(MarketError, message)
template convertEthersError(body) =
try:
body
except EthersError as error:
raiseMarketError(error.msgDetail)
proc approveFunds(market: OnChainMarket, amount: UInt256) {.async.} =
debug "Approving tokens", amount
convertEthersError:
let tokenAddress = await market.contract.token()
let token = Erc20Token.new(tokenAddress, market.signer)
discard await token.increaseAllowance(market.contract.address(), amount).confirm(0)
method getZkeyHash*(market: OnChainMarket): Future[?string] {.async.} =
let config = await market.contract.config()
return some config.proofs.zkeyHash
method getSigner*(market: OnChainMarket): Future[Address] {.async.} =
convertEthersError:
return await market.signer.getAddress()
method periodicity*(market: OnChainMarket): Future[Periodicity] {.async.} =
convertEthersError:
let config = await market.contract.config()
let period = config.proofs.period
return Periodicity(seconds: period)
method proofTimeout*(market: OnChainMarket): Future[UInt256] {.async.} =
convertEthersError:
let config = await market.contract.config()
return config.proofs.timeout
method proofDowntime*(market: OnChainMarket): Future[uint8] {.async.} =
convertEthersError:
let config = await market.contract.config()
return config.proofs.downtime
method getPointer*(market: OnChainMarket, slotId: SlotId): Future[uint8] {.async.} =
convertEthersError:
let overrides = CallOverrides(blockTag: some BlockTag.pending)
return await market.contract.getPointer(slotId, overrides)
method myRequests*(market: OnChainMarket): Future[seq[RequestId]] {.async.} =
convertEthersError:
return await market.contract.myRequests
method mySlots*(market: OnChainMarket): Future[seq[SlotId]] {.async.} =
convertEthersError:
let slots = await market.contract.mySlots()
debug "Fetched my slots", numSlots=len(slots)
return slots
method requestStorage(market: OnChainMarket, request: StorageRequest){.async.} =
convertEthersError:
debug "Requesting storage"
await market.approveFunds(request.price())
discard await market.contract.requestStorage(request).confirm(0)
method getRequest(market: OnChainMarket,
id: RequestId): Future[?StorageRequest] {.async.} =
convertEthersError:
try:
return some await market.contract.getRequest(id)
except ProviderError as e:
if e.msgDetail.contains("Unknown request"):
return none StorageRequest
raise e
method requestState*(market: OnChainMarket,
requestId: RequestId): Future[?RequestState] {.async.} =
convertEthersError:
try:
let overrides = CallOverrides(blockTag: some BlockTag.pending)
return some await market.contract.requestState(requestId, overrides)
except ProviderError as e:
if e.msgDetail.contains("Unknown request"):
return none RequestState
raise e
method slotState*(market: OnChainMarket,
slotId: SlotId): Future[SlotState] {.async.} =
convertEthersError:
let overrides = CallOverrides(blockTag: some BlockTag.pending)
return await market.contract.slotState(slotId, overrides)
method getRequestEnd*(market: OnChainMarket,
id: RequestId): Future[SecondsSince1970] {.async.} =
convertEthersError:
return await market.contract.requestEnd(id)
method requestExpiresAt*(market: OnChainMarket,
id: RequestId): Future[SecondsSince1970] {.async.} =
convertEthersError:
return await market.contract.requestExpiry(id)
method getHost(market: OnChainMarket,
requestId: RequestId,
slotIndex: UInt256): Future[?Address] {.async.} =
convertEthersError:
let slotId = slotId(requestId, slotIndex)
let address = await market.contract.getHost(slotId)
if address != Address.default:
return some address
else:
return none Address
method getActiveSlot*(market: OnChainMarket,
slotId: SlotId): Future[?Slot] {.async.} =
convertEthersError:
try:
return some await market.contract.getActiveSlot(slotId)
except ProviderError as e:
if e.msgDetail.contains("Slot is free"):
return none Slot
raise e
method fillSlot(market: OnChainMarket,
requestId: RequestId,
slotIndex: UInt256,
proof: Groth16Proof,
collateral: UInt256) {.async.} =
convertEthersError:
await market.approveFunds(collateral)
discard await market.contract.fillSlot(requestId, slotIndex, proof).confirm(0)
method freeSlot*(market: OnChainMarket, slotId: SlotId) {.async.} =
convertEthersError:
var freeSlot: Future[?TransactionResponse]
if rewardRecipient =? market.rewardRecipient:
# If --reward-recipient specified, use it as the reward recipient, and use
# the SP's address as the collateral recipient
let collateralRecipient = await market.getSigner()
freeSlot = market.contract.freeSlot(
slotId,
rewardRecipient, # --reward-recipient
collateralRecipient) # SP's address
else:
# Otherwise, use the SP's address as both the reward and collateral
# recipient (the contract will use msg.sender for both)
freeSlot = market.contract.freeSlot(slotId)
discard await freeSlot.confirm(0)
method withdrawFunds(market: OnChainMarket,
requestId: RequestId) {.async.} =
convertEthersError:
discard await market.contract.withdrawFunds(requestId).confirm(0)
method isProofRequired*(market: OnChainMarket,
id: SlotId): Future[bool] {.async.} =
convertEthersError:
try:
let overrides = CallOverrides(blockTag: some BlockTag.pending)
return await market.contract.isProofRequired(id, overrides)
except ProviderError as e:
if e.msgDetail.contains("Slot is free"):
return false
raise e
method willProofBeRequired*(market: OnChainMarket,
id: SlotId): Future[bool] {.async.} =
convertEthersError:
try:
let overrides = CallOverrides(blockTag: some BlockTag.pending)
return await market.contract.willProofBeRequired(id, overrides)
except ProviderError as e:
if e.msgDetail.contains("Slot is free"):
return false
raise e
method getChallenge*(market: OnChainMarket, id: SlotId): Future[ProofChallenge] {.async.} =
convertEthersError:
let overrides = CallOverrides(blockTag: some BlockTag.pending)
return await market.contract.getChallenge(id, overrides)
method submitProof*(market: OnChainMarket,
id: SlotId,
proof: Groth16Proof) {.async.} =
convertEthersError:
discard await market.contract.submitProof(id, proof).confirm(0)
method markProofAsMissing*(market: OnChainMarket,
id: SlotId,
period: Period) {.async.} =
convertEthersError:
discard await market.contract.markProofAsMissing(id, period).confirm(0)
method canProofBeMarkedAsMissing*(
market: OnChainMarket,
id: SlotId,
period: Period
): Future[bool] {.async.} =
let provider = market.contract.provider
let contractWithoutSigner = market.contract.connect(provider)
let overrides = CallOverrides(blockTag: some BlockTag.pending)
try:
discard await contractWithoutSigner.markProofAsMissing(id, period, overrides)
return true
except EthersError as e:
trace "Proof cannot be marked as missing", msg = e.msg
return false
method reserveSlot*(
market: OnChainMarket,
requestId: RequestId,
slotIndex: UInt256) {.async.} =
convertEthersError:
discard await market.contract.reserveSlot(requestId, slotIndex).confirm(0)
method canReserveSlot*(
market: OnChainMarket,
requestId: RequestId,
slotIndex: UInt256): Future[bool] {.async.} =
convertEthersError:
return await market.contract.canReserveSlot(requestId, slotIndex)
method subscribeRequests*(market: OnChainMarket,
callback: OnRequest):
Future[MarketSubscription] {.async.} =
proc onEvent(event: StorageRequested) {.upraises:[].} =
callback(event.requestId,
event.ask,
event.expiry)
convertEthersError:
let subscription = await market.contract.subscribe(StorageRequested, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeSlotFilled*(market: OnChainMarket,
callback: OnSlotFilled):
Future[MarketSubscription] {.async.} =
proc onEvent(event: SlotFilled) {.upraises:[].} =
callback(event.requestId, event.slotIndex)
convertEthersError:
let subscription = await market.contract.subscribe(SlotFilled, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeSlotFilled*(market: OnChainMarket,
requestId: RequestId,
slotIndex: UInt256,
callback: OnSlotFilled):
Future[MarketSubscription] {.async.} =
proc onSlotFilled(eventRequestId: RequestId, eventSlotIndex: UInt256) =
if eventRequestId == requestId and eventSlotIndex == slotIndex:
callback(requestId, slotIndex)
convertEthersError:
return await market.subscribeSlotFilled(onSlotFilled)
method subscribeSlotFreed*(market: OnChainMarket,
callback: OnSlotFreed):
Future[MarketSubscription] {.async.} =
proc onEvent(event: SlotFreed) {.upraises:[].} =
callback(event.requestId, event.slotIndex)
convertEthersError:
let subscription = await market.contract.subscribe(SlotFreed, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeFulfillment(market: OnChainMarket,
callback: OnFulfillment):
Future[MarketSubscription] {.async.} =
proc onEvent(event: RequestFulfilled) {.upraises:[].} =
callback(event.requestId)
convertEthersError:
let subscription = await market.contract.subscribe(RequestFulfilled, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeFulfillment(market: OnChainMarket,
requestId: RequestId,
callback: OnFulfillment):
Future[MarketSubscription] {.async.} =
proc onEvent(event: RequestFulfilled) {.upraises:[].} =
if event.requestId == requestId:
callback(event.requestId)
convertEthersError:
let subscription = await market.contract.subscribe(RequestFulfilled, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeRequestCancelled*(market: OnChainMarket,
callback: OnRequestCancelled):
Future[MarketSubscription] {.async.} =
proc onEvent(event: RequestCancelled) {.upraises:[].} =
callback(event.requestId)
convertEthersError:
let subscription = await market.contract.subscribe(RequestCancelled, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeRequestCancelled*(market: OnChainMarket,
requestId: RequestId,
callback: OnRequestCancelled):
Future[MarketSubscription] {.async.} =
proc onEvent(event: RequestCancelled) {.upraises:[].} =
if event.requestId == requestId:
callback(event.requestId)
convertEthersError:
let subscription = await market.contract.subscribe(RequestCancelled, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeRequestFailed*(market: OnChainMarket,
callback: OnRequestFailed):
Future[MarketSubscription] {.async.} =
proc onEvent(event: RequestFailed) {.upraises:[]} =
callback(event.requestId)
convertEthersError:
let subscription = await market.contract.subscribe(RequestFailed, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeRequestFailed*(market: OnChainMarket,
requestId: RequestId,
callback: OnRequestFailed):
Future[MarketSubscription] {.async.} =
proc onEvent(event: RequestFailed) {.upraises:[]} =
if event.requestId == requestId:
callback(event.requestId)
convertEthersError:
let subscription = await market.contract.subscribe(RequestFailed, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method subscribeProofSubmission*(market: OnChainMarket,
callback: OnProofSubmitted):
Future[MarketSubscription] {.async.} =
proc onEvent(event: ProofSubmitted) {.upraises: [].} =
callback(event.id)
convertEthersError:
let subscription = await market.contract.subscribe(ProofSubmitted, onEvent)
return OnChainMarketSubscription(eventSubscription: subscription)
method unsubscribe*(subscription: OnChainMarketSubscription) {.async.} =
await subscription.eventSubscription.unsubscribe()
method queryPastEvents*[T: MarketplaceEvent](
market: OnChainMarket,
_: type T,
blocksAgo: int): Future[seq[T]] {.async.} =
convertEthersError:
let contract = market.contract
let provider = contract.provider
let head = await provider.getBlockNumber()
let fromBlock = BlockTag.init(head - blocksAgo.abs.u256)
return await contract.queryFilter(T,
fromBlock,
BlockTag.latest)