mirror of
https://github.com/FiloSpaTeam/plutus-pioneer-program.git
synced 2024-11-25 00:02:18 +01:00
added 'NFT'
This commit is contained in:
parent
1c57956054
commit
86c61c3592
2 changed files with 99 additions and 0 deletions
|
@ -11,6 +11,7 @@ License-files: LICENSE
|
|||
library
|
||||
hs-source-dirs: src
|
||||
exposed-modules: Week05.Free
|
||||
, Week05.NFT
|
||||
, Week05.Signed
|
||||
build-depends: aeson
|
||||
, base ^>=4.14.1.0
|
||||
|
|
98
code/week05/src/Week05/NFT.hs
Normal file
98
code/week05/src/Week05/NFT.hs
Normal file
|
@ -0,0 +1,98 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week05.NFT where
|
||||
|
||||
import Control.Monad hiding (fmap)
|
||||
import Control.Monad.Freer.Extras as Extras
|
||||
import Data.Aeson (ToJSON, FromJSON)
|
||||
import qualified Data.Map as Map
|
||||
import Data.Text (Text)
|
||||
import Data.Void (Void)
|
||||
import GHC.Generics (Generic)
|
||||
import Plutus.Contract as Contract hiding (when)
|
||||
import Plutus.Trace.Emulator as Emulator
|
||||
import qualified PlutusTx
|
||||
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||
import Ledger hiding (singleton)
|
||||
import Ledger.Constraints as Constraints
|
||||
import qualified Ledger.Typed.Scripts as Scripts
|
||||
import Ledger.Value as Value
|
||||
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||
import Playground.Types (KnownCurrency (..))
|
||||
import Prelude (Semigroup (..))
|
||||
import Text.Printf (printf)
|
||||
import Wallet.Emulator.Wallet
|
||||
|
||||
{-# INLINABLE mkPolicy #-}
|
||||
mkPolicy :: TxOutRef -> TokenName -> ScriptContext -> Bool
|
||||
mkPolicy oref tn ctx = traceIfFalse "UTxO not consumed" hasUTxO &&
|
||||
traceIfFalse "wrong amount minted" checkMintedAmount
|
||||
where
|
||||
info :: TxInfo
|
||||
info = scriptContextTxInfo ctx
|
||||
|
||||
hasUTxO :: Bool
|
||||
hasUTxO = any (\i -> txInInfoOutRef i == oref) $ txInfoInputs info
|
||||
|
||||
checkMintedAmount :: Bool
|
||||
checkMintedAmount = case flattenValue (txInfoForge info) of
|
||||
[(cs, tn', amt)] -> cs == ownCurrencySymbol ctx && tn' == tn && amt == 1
|
||||
_ -> False
|
||||
|
||||
policy :: TxOutRef -> TokenName -> Scripts.MonetaryPolicy
|
||||
policy oref tn = mkMonetaryPolicyScript $
|
||||
$$(PlutusTx.compile [|| \oref' tn' -> Scripts.wrapMonetaryPolicy $ mkPolicy oref' tn' ||])
|
||||
`PlutusTx.applyCode`
|
||||
PlutusTx.liftCode oref
|
||||
`PlutusTx.applyCode`
|
||||
PlutusTx.liftCode tn
|
||||
|
||||
curSymbol :: TxOutRef -> TokenName -> CurrencySymbol
|
||||
curSymbol oref tn = scriptCurrencySymbol $ policy oref tn
|
||||
|
||||
type NFTSchema =
|
||||
BlockchainActions
|
||||
.\/ Endpoint "mint" TokenName
|
||||
|
||||
mint :: TokenName -> Contract w NFTSchema Text ()
|
||||
mint tn = do
|
||||
pk <- Contract.ownPubKey
|
||||
utxos <- utxoAt (pubKeyAddress pk)
|
||||
case Map.keys utxos of
|
||||
[] -> Contract.logError @String "no utxo found"
|
||||
oref : _ -> do
|
||||
let val = Value.singleton (curSymbol oref tn) tn 1
|
||||
lookups = Constraints.monetaryPolicy (policy oref tn) <> Constraints.unspentOutputs utxos
|
||||
tx = Constraints.mustForgeValue val <> Constraints.mustSpendPubKeyOutput oref
|
||||
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
Contract.logInfo @String $ printf "forged %s" (show val)
|
||||
|
||||
endpoints :: Contract () NFTSchema Text ()
|
||||
endpoints = mint' >> endpoints
|
||||
where
|
||||
mint' = endpoint @"mint" >>= mint
|
||||
|
||||
mkSchemaDefinitions ''NFTSchema
|
||||
|
||||
mkKnownCurrencies []
|
||||
|
||||
test :: IO ()
|
||||
test = runEmulatorTraceIO $ do
|
||||
let tn = "ABC"
|
||||
h1 <- activateContractWallet (Wallet 1) endpoints
|
||||
h2 <- activateContractWallet (Wallet 2) endpoints
|
||||
callEndpoint @"mint" h1 tn
|
||||
callEndpoint @"mint" h2 tn
|
||||
void $ Emulator.waitNSlots 1
|
Loading…
Reference in a new issue