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Wallet.hs
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Wallet.hs
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{-# LANGUAGE GADTs #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeApplications #-}
module Cardano.Benchmarking.Wallet
where
import Prelude
import Data.Maybe
import Control.Concurrent.MVar
import Cardano.Api
import Cardano.Benchmarking.FundSet as FundSet
import Cardano.Benchmarking.Types (NumberOfTxs (..))
import Cardano.Api.Shelley (ProtocolParameters, ReferenceScript(..))
type WalletRef = MVar Wallet
type TxGenerator era = [Fund] -> [TxOut CtxTx era] -> Either String (Tx era, TxId)
type ToUTxO era = Lovelace -> (TxOut CtxTx era, TxIx -> TxId -> Fund)
data Wallet = Wallet {
walletSeqNumber :: !SeqNumber
, walletFunds :: !FundSet
}
initWallet :: IO (MVar Wallet)
initWallet = newMVar $ Wallet {
walletSeqNumber = SeqNumber 1
, walletFunds = emptyFunds
}
askWalletRef :: WalletRef -> (Wallet -> a) -> IO a
askWalletRef r f = do
w <- readMVar r
return $ f w
modifyWalletRef :: WalletRef -> (Wallet -> IO (Wallet, a)) -> IO a
modifyWalletRef = modifyMVar
modifyWalletRefEither :: WalletRef -> (Wallet -> IO (Either err (Wallet,a))) -> IO (Either err a)
modifyWalletRefEither ref action
= modifyMVar ref $ \w -> action w >>= \case
Right (newWallet, res) -> return (newWallet, Right res)
Left err -> return (w, Left err)
walletRefInsertFund :: WalletRef -> Fund -> IO ()
walletRefInsertFund ref fund = modifyMVar_ ref $ \w -> return $ walletInsertFund fund w
walletInsertFund :: Fund -> Wallet -> Wallet
walletInsertFund f w
= w { walletFunds = FundSet.insertFund (walletFunds w) f }
walletDeleteFund :: Fund -> Wallet -> Wallet
walletDeleteFund f w
= w { walletFunds = FundSet.deleteFund (walletFunds w) f }
walletSelectFunds :: Wallet -> FundSelector -> Either String [Fund]
walletSelectFunds w s = s $ walletFunds w
walletExtractFunds :: Wallet -> FundSelector -> Either String (Wallet, [Fund])
walletExtractFunds w s
= case walletSelectFunds w s of
Left err -> Left err
Right funds -> Right (foldl (flip walletDeleteFund) w funds, funds)
mkWalletFundSource :: WalletRef -> FundSelector -> FundSource IO
mkWalletFundSource walletRef selector
= modifyWalletRefEither walletRef (\wallet -> return $ walletExtractFunds wallet selector)
mkWalletFundStore :: WalletRef -> FundToStore IO
mkWalletFundStore walletRef funds = modifyWalletRef walletRef
$ \wallet -> return (foldl (flip walletInsertFund) wallet funds, ())
--TODO use Error monad
sourceToStoreTransaction ::
Monad m
=> TxGenerator era
-> FundSource m
-> ([Lovelace] -> [Lovelace])
-> [ToUTxO era]
-> FundToStore m
-> m (Either String (Tx era))
sourceToStoreTransaction txGenerator fundSource inToOut mkTxOut fundToStore = do
fundSource >>= \case
Left err -> return $ Left err
Right inputFunds -> work inputFunds
where
work inputFunds = do
let
outValues = inToOut $ map getFundLovelace inputFunds
outs = zipWith ($) mkTxOut outValues
case txGenerator inputFunds $ map fst outs of
Left err -> return $ Left err
Right (tx, txId) -> do
let
fkt :: (a, TxIx -> TxId -> Fund) -> TxIx -> Fund
fkt a txIx = snd a txIx txId
fundToStore $ zipWith fkt outs [TxIx 0 ..]
return $ Right tx
includeChange :: Lovelace -> [Lovelace] -> [Lovelace] -> [Lovelace]
includeChange fee spend have = case compare changeValue 0 of
GT -> changeValue : spend
EQ -> spend
LT -> error "genTX: Bad transaction: insufficient funds"
where changeValue = sum have - sum spend - fee
mkUTxOVariant :: forall era. IsShelleyBasedEra era
=> Variant
-> NetworkId
-> SigningKey PaymentKey
-> Validity
-> ToUTxO era
mkUTxOVariant variant networkId key validity value
= ( mkTxOut value
, mkNewFund value
)
where
mkTxOut v = TxOut (keyAddress @ era networkId key) (lovelaceToTxOutValue v) TxOutDatumNone ReferenceScriptNone
mkNewFund :: Lovelace -> TxIx -> TxId -> Fund
mkNewFund val txIx txId = Fund $ InAnyCardanoEra (cardanoEra @ era) $ FundInEra {
_fundTxIn = TxIn txId txIx
, _fundWitness = KeyWitness KeyWitnessForSpending
, _fundVal = lovelaceToTxOutValue val
, _fundSigningKey = Just key
, _fundValidity = validity
, _fundVariant = variant
}
-- to be merged with mkUTxOVariant
mkUTxOScript :: forall era.
IsShelleyBasedEra era
=> NetworkId
-> (Script PlutusScriptV1, ScriptData)
-> Witness WitCtxTxIn era
-> Validity
-> ToUTxO era
mkUTxOScript networkId (script, txOutDatum) witness validity value
= ( mkTxOut value
, mkNewFund value
)
where
plutusScriptAddr = makeShelleyAddressInEra
networkId
(PaymentCredentialByScript $ hashScript script)
NoStakeAddress
mkTxOut v = case scriptDataSupportedInEra (cardanoEra @ era) of
Nothing -> error " mkUtxOScript scriptDataSupportedInEra==Nothing"
Just tag -> TxOut
plutusScriptAddr
(lovelaceToTxOutValue v)
(TxOutDatumHash tag $ hashScriptData txOutDatum)
ReferenceScriptNone
mkNewFund :: Lovelace -> TxIx -> TxId -> Fund
mkNewFund val txIx txId = Fund $ InAnyCardanoEra (cardanoEra @ era) $ FundInEra {
_fundTxIn = TxIn txId txIx
, _fundWitness = witness
, _fundVal = lovelaceToTxOutValue val
, _fundSigningKey = Nothing
, _fundValidity = validity
, _fundVariant = PlutusScriptFund
}
genTx :: forall era. IsShelleyBasedEra era =>
ProtocolParameters
-> (TxInsCollateral era, [Fund])
-> TxFee era
-> TxMetadataInEra era
-> TxGenerator era
genTx protocolParameters (collateral, collFunds) fee metadata inFunds outputs
= case makeTransactionBody txBodyContent of
Left err -> error $ show err
Right b -> Right ( signShelleyTransaction b $ map WitnessPaymentKey allKeys
, getTxId b
)
where
allKeys = mapMaybe getFundKey $ inFunds ++ collFunds
txBodyContent = TxBodyContent {
txIns = map (\f -> (getFundTxIn f, BuildTxWith $ getFundWitness f)) inFunds
, txInsCollateral = collateral
, txInsReference = TxInsReferenceNone
, txOuts = outputs
, txFee = fee
, txValidityRange = (TxValidityNoLowerBound, upperBound)
, txMetadata = metadata
, txAuxScripts = TxAuxScriptsNone
, txExtraKeyWits = TxExtraKeyWitnessesNone
, txProtocolParams = BuildTxWith $ Just protocolParameters
, txWithdrawals = TxWithdrawalsNone
, txCertificates = TxCertificatesNone
, txUpdateProposal = TxUpdateProposalNone
, txMintValue = TxMintNone
, txScriptValidity = TxScriptValidityNone
, txReturnCollateral = TxReturnCollateralNone
, txTotalCollateral = TxTotalCollateralNone
}
upperBound :: TxValidityUpperBound era
upperBound = case shelleyBasedEra @ era of
ShelleyBasedEraShelley -> TxValidityUpperBound ValidityUpperBoundInShelleyEra $ SlotNo maxBound
ShelleyBasedEraAllegra -> TxValidityNoUpperBound ValidityNoUpperBoundInAllegraEra
ShelleyBasedEraMary -> TxValidityNoUpperBound ValidityNoUpperBoundInMaryEra
ShelleyBasedEraAlonzo -> TxValidityNoUpperBound ValidityNoUpperBoundInAlonzoEra
ShelleyBasedEraBabbage -> TxValidityNoUpperBound ValidityNoUpperBoundInBabbageEra
newtype WalletScript era = WalletScript { runWalletScript :: IO (WalletStep era) }
data WalletStep era
= Done
| NextTx !(WalletScript era) !(Tx era)
| Error String
-- TODO:
-- use explicit tx- counter for each walletscript
-- Do not rely on global walletSeqNum
benchmarkWalletScript :: forall era .
IsShelleyBasedEra era
=> WalletRef
-> TxGenerator era
-> NumberOfTxs
-> (Target -> FundSource IO)
-> ([Lovelace] -> [Lovelace])
-> ( Target -> SeqNumber -> [ToUTxO era])
-> FundToStore IO
-> Target
-> WalletScript era
benchmarkWalletScript wRef txGenerator (NumberOfTxs maxCount) fundSource inOut toUTxO fundToStore targetNode
= WalletScript walletStep
where
nextCall = benchmarkWalletScript wRef txGenerator (NumberOfTxs maxCount) fundSource inOut toUTxO fundToStore targetNode
walletStep :: IO (WalletStep era)
walletStep = modifyMVarMasked wRef nextSeqNumber >>= \case
Nothing -> return Done
Just seqNumber -> do
sourceToStoreTransaction txGenerator (fundSource targetNode) inOut (toUTxO targetNode seqNumber) fundToStore >>= \case
Left err -> return $ Error err
Right tx -> return $ NextTx nextCall tx
nextSeqNumber :: Wallet -> IO (Wallet, Maybe SeqNumber)
nextSeqNumber w = if n > SeqNumber (fromIntegral maxCount)
then return (w, Nothing)
else return (w {walletSeqNumber = succ n }, Just n)
where n = walletSeqNumber w
limitSteps ::
NumberOfTxs
-> WalletScript era
-> WalletScript era
limitSteps = undefined
keyAddress :: forall era. IsShelleyBasedEra era => NetworkId -> SigningKey PaymentKey -> AddressInEra era
keyAddress networkId k
= makeShelleyAddressInEra
networkId
(PaymentCredentialByKey $ verificationKeyHash $ getVerificationKey k)
NoStakeAddress