mirror of
https://github.com/FiloSpaTeam/plutus-pioneer-program.git
synced 2024-11-25 00:02:18 +01:00
added old solutions
This commit is contained in:
Lars Brünjes
parent
1d223b2206
commit
b9736840bb
11 changed files with 722 additions and 0 deletions
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@ -16,6 +16,8 @@ library
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, Week02.Homework2
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, Week02.Gift
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, Week02.IsData
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, Week02.Solution1
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, Week02.Solution2
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, Week02.Typed
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build-depends: aeson
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, base ^>=4.14.1.0
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91
code/week02/src/Week02/Solution1.hs
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91
code/week02/src/Week02/Solution1.hs
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@ -0,0 +1,91 @@
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE NoImplicitPrelude #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE TypeOperators #-}
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{-# OPTIONS_GHC -fno-warn-unused-imports #-}
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module Week02.Solution1 where
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import Control.Monad hiding (fmap)
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import Data.Map as Map
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import Data.Text (Text)
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import Data.Void (Void)
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import Plutus.Contract
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import PlutusTx (Data (..))
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import qualified PlutusTx
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import PlutusTx.Prelude hiding (Semigroup(..), unless)
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import Ledger hiding (singleton)
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import Ledger.Constraints as Constraints
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import qualified Ledger.Scripts as Scripts hiding (validatorHash)
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import qualified Ledger.Typed.Scripts as Scripts
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import Ledger.Ada as Ada
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import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage)
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import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
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import Playground.Types (KnownCurrency (..))
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import Prelude (IO, Semigroup (..), String)
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import Text.Printf (printf)
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{-# INLINABLE mkValidator #-}
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-- This should validate if and only if the two Booleans in the redeemer are equal!
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mkValidator :: () -> (Bool, Bool) -> ScriptContext -> Bool
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mkValidator () (b, c) _ = traceIfFalse "wrong redeemer" $ b == c
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data Typed
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instance Scripts.ValidatorTypes Typed where
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type instance DatumType Typed = ()
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type instance RedeemerType Typed = (Bool, Bool)
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typedValidator :: Scripts.TypedValidator Typed
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typedValidator = Scripts.mkTypedValidator @Typed
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$$(PlutusTx.compile [|| mkValidator ||])
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$$(PlutusTx.compile [|| wrap ||])
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where
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wrap = Scripts.wrapValidator @() @(Bool, Bool)
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validator :: Validator
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validator = Scripts.validatorScript typedValidator
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valHash :: Ledger.ValidatorHash
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valHash = Scripts.validatorHash typedValidator
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scrAddress :: Ledger.Address
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scrAddress = scriptAddress validator
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type GiftSchema =
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Endpoint "give" Integer
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.\/ Endpoint "grab" (Bool, Bool)
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give :: AsContractError e => Integer -> Contract w s e ()
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give amount = do
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let tx = mustPayToTheScript () $ Ada.lovelaceValueOf amount
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ledgerTx <- submitTxConstraints typedValidator tx
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void $ awaitTxConfirmed $ txId ledgerTx
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logInfo @String $ printf "made a gift of %d lovelace" amount
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grab :: forall w s e. AsContractError e => (Bool, Bool) -> Contract w s e ()
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grab bs = do
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utxos <- utxoAt scrAddress
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let orefs = fst <$> Map.toList utxos
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lookups = Constraints.unspentOutputs utxos <>
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Constraints.otherScript validator
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tx :: TxConstraints Void Void
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tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ PlutusTx.toData bs | oref <- orefs]
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ledgerTx <- submitTxConstraintsWith @Void lookups tx
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void $ awaitTxConfirmed $ txId ledgerTx
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logInfo @String $ "collected gifts"
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endpoints :: Contract () GiftSchema Text ()
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endpoints = (give' `select` grab') >> endpoints
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where
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give' = endpoint @"give" >>= give
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grab' = endpoint @"grab" >>= grab
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mkSchemaDefinitions ''GiftSchema
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mkKnownCurrencies []
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100
code/week02/src/Week02/Solution2.hs
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100
code/week02/src/Week02/Solution2.hs
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@ -0,0 +1,100 @@
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveAnyClass #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE NoImplicitPrelude #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE TypeOperators #-}
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{-# OPTIONS_GHC -fno-warn-unused-imports #-}
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module Week02.Solution2 where
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import Control.Monad hiding (fmap)
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import Data.Aeson (FromJSON, ToJSON)
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import Data.Map as Map
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import Data.Text (Text)
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import Data.Void (Void)
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import GHC.Generics (Generic)
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import Plutus.Contract
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import qualified PlutusTx
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import PlutusTx.Prelude hiding (Semigroup(..), unless)
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import Ledger hiding (singleton)
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import Ledger.Constraints as Constraints
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import qualified Ledger.Typed.Scripts as Scripts
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import Ledger.Ada as Ada
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import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
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import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
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import Playground.Types (KnownCurrency (..))
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import Prelude (IO, Semigroup (..), String)
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import Text.Printf (printf)
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data MyRedeemer = MyRedeemer
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{ flag1 :: Bool
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, flag2 :: Bool
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} deriving (Generic, FromJSON, ToJSON, ToSchema)
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PlutusTx.unstableMakeIsData ''MyRedeemer
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{-# INLINABLE mkValidator #-}
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-- This should validate if and only if the two Booleans in the redeemer are equal!
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mkValidator :: () -> MyRedeemer -> ScriptContext -> Bool
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mkValidator () (MyRedeemer b c) _ = traceIfFalse "wrong redeemer" $ b == c
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data Typed
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instance Scripts.ValidatorTypes Typed where
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type instance DatumType Typed = ()
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type instance RedeemerType Typed = MyRedeemer
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typedValidator :: Scripts.TypedValidator Typed
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typedValidator = Scripts.mkTypedValidator @Typed
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$$(PlutusTx.compile [|| mkValidator ||])
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$$(PlutusTx.compile [|| wrap ||])
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where
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wrap = Scripts.wrapValidator @() @MyRedeemer
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validator :: Validator
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validator = Scripts.validatorScript typedValidator
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valHash :: Ledger.ValidatorHash
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valHash = Scripts.validatorHash typedValidator
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scrAddress :: Ledger.Address
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scrAddress = scriptAddress validator
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type GiftSchema =
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Endpoint "give" Integer
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.\/ Endpoint "grab" MyRedeemer
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give :: AsContractError e => Integer -> Contract w s e ()
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give amount = do
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let tx = mustPayToTheScript () $ Ada.lovelaceValueOf amount
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ledgerTx <- submitTxConstraints typedValidator tx
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void $ awaitTxConfirmed $ txId ledgerTx
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logInfo @String $ printf "made a gift of %d lovelace" amount
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grab :: forall w s e. AsContractError e => MyRedeemer -> Contract w s e ()
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grab r = do
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utxos <- utxoAt scrAddress
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let orefs = fst <$> Map.toList utxos
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lookups = Constraints.unspentOutputs utxos <>
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Constraints.otherScript validator
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tx :: TxConstraints Void Void
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tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ PlutusTx.toData r | oref <- orefs]
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ledgerTx <- submitTxConstraintsWith @Void lookups tx
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void $ awaitTxConfirmed $ txId ledgerTx
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logInfo @String $ "collected gifts"
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endpoints :: Contract () GiftSchema Text ()
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endpoints = (give' `select` grab') >> endpoints
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where
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give' = endpoint @"give" >>= give
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grab' = endpoint @"grab" >>= grab
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mkSchemaDefinitions ''GiftSchema
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mkKnownCurrencies []
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@ -13,6 +13,8 @@ library
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exposed-modules: Week03.Homework1
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, Week03.Homework2
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, Week03.Parameterized
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, Week03.Solution1
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, Week03.Solution2
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, Week03.Vesting
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build-depends: aeson
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, base ^>=4.14.1.0
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145
code/week03/src/Week03/Solution1.hs
Normal file
145
code/week03/src/Week03/Solution1.hs
Normal file
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@ -0,0 +1,145 @@
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveAnyClass #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE NoImplicitPrelude #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE TypeOperators #-}
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{-# OPTIONS_GHC -fno-warn-unused-imports #-}
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module Week03.Solution1 where
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import Control.Monad hiding (fmap)
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import Data.Aeson (ToJSON, FromJSON)
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import Data.Map as Map
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import Data.Text (Text)
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import Data.Void (Void)
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import GHC.Generics (Generic)
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import Plutus.Contract
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import qualified PlutusTx
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import PlutusTx.Prelude hiding (unless)
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import Ledger hiding (singleton)
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import Ledger.Constraints as Constraints
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import qualified Ledger.Typed.Scripts as Scripts
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import Ledger.Ada as Ada
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import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
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import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
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import Playground.Types (KnownCurrency (..))
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import Prelude (IO, Show (..), String)
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import qualified Prelude as P
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import Text.Printf (printf)
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data VestingDatum = VestingDatum
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{ beneficiary1 :: PubKeyHash
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, beneficiary2 :: PubKeyHash
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, deadline :: POSIXTime
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} deriving Show
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PlutusTx.unstableMakeIsData ''VestingDatum
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{-# INLINABLE mkValidator #-}
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mkValidator :: VestingDatum -> () -> ScriptContext -> Bool
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mkValidator dat () ctx
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| (beneficiary1 dat `elem` sigs) && (to (deadline dat) `contains` range) = True
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| (beneficiary2 dat `elem` sigs) && (from (1 + deadline dat) `contains` range) = True
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| otherwise = False
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where
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info :: TxInfo
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info = scriptContextTxInfo ctx
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sigs :: [PubKeyHash]
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sigs = txInfoSignatories info
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range :: POSIXTimeRange
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range = txInfoValidRange info
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data Vesting
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instance Scripts.ValidatorTypes Vesting where
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type instance DatumType Vesting = VestingDatum
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type instance RedeemerType Vesting = ()
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typedValidator :: Scripts.TypedValidator Vesting
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typedValidator = Scripts.mkTypedValidator @Vesting
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$$(PlutusTx.compile [|| mkValidator ||])
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$$(PlutusTx.compile [|| wrap ||])
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where
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wrap = Scripts.wrapValidator @VestingDatum @()
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validator :: Validator
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validator = Scripts.validatorScript typedValidator
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scrAddress :: Ledger.Address
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scrAddress = scriptAddress validator
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data GiveParams = GiveParams
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{ gpBeneficiary :: !PubKeyHash
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, gpDeadline :: !POSIXTime
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, gpAmount :: !Integer
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} deriving (Generic, ToJSON, FromJSON, ToSchema)
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type VestingSchema =
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Endpoint "give" GiveParams
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.\/ Endpoint "grab" ()
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give :: AsContractError e => GiveParams -> Contract w s e ()
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give gp = do
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pkh <- pubKeyHash <$> ownPubKey
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let dat = VestingDatum
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{ beneficiary1 = gpBeneficiary gp
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, beneficiary2 = pkh
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, deadline = gpDeadline gp
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}
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tx = mustPayToTheScript dat $ Ada.lovelaceValueOf $ gpAmount gp
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ledgerTx <- submitTxConstraints typedValidator tx
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void $ awaitTxConfirmed $ txId ledgerTx
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logInfo @String $ printf "made a gift of %d lovelace to %s with deadline %s"
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(gpAmount gp)
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(show $ gpBeneficiary gp)
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(show $ gpDeadline gp)
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grab :: forall w s e. AsContractError e => Contract w s e ()
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grab = do
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now <- currentTime
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pkh <- pubKeyHash <$> ownPubKey
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utxos <- utxoAt scrAddress
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let utxos1 = Map.filter (isSuitable $ \dat -> beneficiary1 dat == pkh && now <= deadline dat) utxos
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utxos2 = Map.filter (isSuitable $ \dat -> beneficiary2 dat == pkh && now > deadline dat) utxos
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logInfo @String $ printf "found %d gift(s) to grab" (Map.size utxos1 P.+ Map.size utxos2)
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unless (Map.null utxos1) $ do
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let orefs = fst <$> Map.toList utxos1
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lookups = Constraints.unspentOutputs utxos1 P.<>
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Constraints.otherScript validator
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tx :: TxConstraints Void Void
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tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ PlutusTx.toData () | oref <- orefs] P.<>
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mustValidateIn (to now)
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void $ submitTxConstraintsWith @Void lookups tx
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unless (Map.null utxos2) $ do
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let orefs = fst <$> Map.toList utxos2
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lookups = Constraints.unspentOutputs utxos2 P.<>
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Constraints.otherScript validator
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tx :: TxConstraints Void Void
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tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ PlutusTx.toData () | oref <- orefs] P.<>
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mustValidateIn (from now)
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void $ submitTxConstraintsWith @Void lookups tx
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where
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isSuitable :: (VestingDatum -> Bool) -> TxOutTx -> Bool
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isSuitable p o = case txOutDatumHash $ txOutTxOut o of
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Nothing -> False
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Just h -> case Map.lookup h $ txData $ txOutTxTx o of
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Nothing -> False
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Just (Datum e) -> maybe False p $ PlutusTx.fromData e
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endpoints :: Contract () VestingSchema Text ()
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endpoints = (give' `select` grab') >> endpoints
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where
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give' = endpoint @"give" >>= give
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grab' = endpoint @"grab" >> grab
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mkSchemaDefinitions ''VestingSchema
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mkKnownCurrencies []
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127
code/week03/src/Week03/Solution2.hs
Normal file
127
code/week03/src/Week03/Solution2.hs
Normal file
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@ -0,0 +1,127 @@
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveAnyClass #-}
|
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{-# LANGUAGE DeriveGeneric #-}
|
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{-# LANGUAGE FlexibleContexts #-}
|
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{-# LANGUAGE MultiParamTypeClasses #-}
|
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{-# LANGUAGE NoImplicitPrelude #-}
|
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{-# LANGUAGE OverloadedStrings #-}
|
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{-# LANGUAGE ScopedTypeVariables #-}
|
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{-# LANGUAGE TemplateHaskell #-}
|
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{-# LANGUAGE TypeApplications #-}
|
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{-# LANGUAGE TypeFamilies #-}
|
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{-# LANGUAGE TypeOperators #-}
|
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|
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{-# OPTIONS_GHC -fno-warn-unused-imports #-}
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|
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module Week03.Solution2 where
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import Control.Monad hiding (fmap)
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import Data.Aeson (ToJSON, FromJSON)
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import Data.Map as Map
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import Data.Text (Text)
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import Data.Void (Void)
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import GHC.Generics (Generic)
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import Plutus.Contract
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import qualified PlutusTx
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import PlutusTx.Prelude hiding (Semigroup(..), unless)
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import Ledger hiding (singleton)
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import Ledger.Constraints as Constraints
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import qualified Ledger.Typed.Scripts as Scripts
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import Ledger.Ada as Ada
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import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
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import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
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import Playground.Types (KnownCurrency (..))
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import Prelude (IO, Semigroup (..), Show (..), String)
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import Text.Printf (printf)
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{-# INLINABLE mkValidator #-}
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mkValidator :: PubKeyHash -> POSIXTime -> () -> ScriptContext -> Bool
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mkValidator pkh s () ctx =
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traceIfFalse "beneficiary's signature missing" checkSig &&
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traceIfFalse "deadline not reached" checkDeadline
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where
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info :: TxInfo
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info = scriptContextTxInfo ctx
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checkSig :: Bool
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checkSig = pkh `elem` txInfoSignatories info
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checkDeadline :: Bool
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checkDeadline = from s `contains` txInfoValidRange info
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data Vesting
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instance Scripts.ValidatorTypes Vesting where
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type instance DatumType Vesting = POSIXTime
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type instance RedeemerType Vesting = ()
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typedValidator :: PubKeyHash -> Scripts.TypedValidator Vesting
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typedValidator p = Scripts.mkTypedValidator @Vesting
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($$(PlutusTx.compile [|| mkValidator ||]) `PlutusTx.applyCode` PlutusTx.liftCode p)
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$$(PlutusTx.compile [|| wrap ||])
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where
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wrap = Scripts.wrapValidator @POSIXTime @()
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validator :: PubKeyHash -> Validator
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validator = Scripts.validatorScript . typedValidator
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scrAddress :: PubKeyHash -> Ledger.Address
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scrAddress = scriptAddress . validator
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data GiveParams = GiveParams
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{ gpBeneficiary :: !PubKeyHash
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, gpDeadline :: !POSIXTime
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, gpAmount :: !Integer
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} deriving (Generic, ToJSON, FromJSON, ToSchema)
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type VestingSchema =
|
||||
Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" ()
|
||||
|
||||
give :: AsContractError e => GiveParams -> Contract w s e ()
|
||||
give gp = do
|
||||
let p = gpBeneficiary gp
|
||||
d = gpDeadline gp
|
||||
tx = mustPayToTheScript d $ Ada.lovelaceValueOf $ gpAmount gp
|
||||
ledgerTx <- submitTxConstraints (typedValidator p) tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
logInfo @String $ printf "made a gift of %d lovelace to %s with deadline %s"
|
||||
(gpAmount gp)
|
||||
(show $ gpBeneficiary gp)
|
||||
(show $ gpDeadline gp)
|
||||
|
||||
grab :: forall w s e. AsContractError e => Contract w s e ()
|
||||
grab = do
|
||||
now <- currentTime
|
||||
pkh <- pubKeyHash <$> ownPubKey
|
||||
utxos <- Map.filter (isSuitable now) <$> utxoAt (scrAddress pkh)
|
||||
if Map.null utxos
|
||||
then logInfo @String $ "no gifts available"
|
||||
else do
|
||||
let orefs = fst <$> Map.toList utxos
|
||||
lookups = Constraints.unspentOutputs utxos <>
|
||||
Constraints.otherScript (validator pkh)
|
||||
tx :: TxConstraints Void Void
|
||||
tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ PlutusTx.toData () | oref <- orefs] <>
|
||||
mustValidateIn (from now)
|
||||
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
logInfo @String $ "collected gifts"
|
||||
where
|
||||
isSuitable :: POSIXTime -> TxOutTx -> Bool
|
||||
isSuitable now o = case txOutDatumHash $ txOutTxOut o of
|
||||
Nothing -> False
|
||||
Just h -> case Map.lookup h $ txData $ txOutTxTx o of
|
||||
Nothing -> False
|
||||
Just (Datum e) -> case PlutusTx.fromData e of
|
||||
Nothing -> False
|
||||
Just d -> d <= now
|
||||
|
||||
endpoints :: Contract () VestingSchema Text ()
|
||||
endpoints = (give' `select` grab') >> endpoints
|
||||
where
|
||||
give' = endpoint @"give" >>= give
|
||||
grab' = endpoint @"grab" >> grab
|
||||
|
||||
mkSchemaDefinitions ''VestingSchema
|
||||
|
||||
mkKnownCurrencies []
|
||||
|
|
@ -15,6 +15,7 @@ library
|
|||
, Week04.Homework
|
||||
, Week04.Maybe
|
||||
, Week04.Monad
|
||||
, Week04.Solution
|
||||
, Week04.Trace
|
||||
, Week04.Writer
|
||||
other-modules: Week04.Vesting
|
||||
|
|
|
|||
54
code/week04/src/Week04/Solution.hs
Normal file
54
code/week04/src/Week04/Solution.hs
Normal file
|
|
@ -0,0 +1,54 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week04.Solution where
|
||||
|
||||
import Data.Aeson (FromJSON, ToJSON)
|
||||
import Data.Functor (void)
|
||||
import Data.Text (Text, unpack)
|
||||
import GHC.Generics (Generic)
|
||||
import Ledger
|
||||
import Ledger.Ada as Ada
|
||||
import Ledger.Constraints as Constraints
|
||||
import Plutus.Contract as Contract
|
||||
import Plutus.Trace.Emulator as Emulator
|
||||
import Wallet.Emulator.Wallet
|
||||
|
||||
data PayParams = PayParams
|
||||
{ ppRecipient :: PubKeyHash
|
||||
, ppLovelace :: Integer
|
||||
} deriving (Show, Generic, FromJSON, ToJSON)
|
||||
|
||||
type PaySchema = Endpoint "pay" PayParams
|
||||
|
||||
payContract :: Contract () PaySchema Text ()
|
||||
payContract = do
|
||||
pp <- endpoint @"pay"
|
||||
let tx = mustPayToPubKey (ppRecipient pp) $ lovelaceValueOf $ ppLovelace pp
|
||||
handleError (\err -> Contract.logInfo $ "caught error: " ++ unpack err) $ void $ submitTx tx
|
||||
payContract
|
||||
|
||||
payTrace :: Integer -> Integer -> EmulatorTrace ()
|
||||
payTrace x y = do
|
||||
h <- activateContractWallet (Wallet 1) payContract
|
||||
let pkh = pubKeyHash $ walletPubKey $ Wallet 2
|
||||
callEndpoint @"pay" h $ PayParams
|
||||
{ ppRecipient = pkh
|
||||
, ppLovelace = x
|
||||
}
|
||||
void $ Emulator.waitNSlots 1
|
||||
callEndpoint @"pay" h $ PayParams
|
||||
{ ppRecipient = pkh
|
||||
, ppLovelace = y
|
||||
}
|
||||
void $ Emulator.waitNSlots 1
|
||||
|
||||
payTest1 :: IO ()
|
||||
payTest1 = runEmulatorTraceIO $ payTrace 1000000 2000000
|
||||
|
||||
payTest2 :: IO ()
|
||||
payTest2 = runEmulatorTraceIO $ payTrace 1000000000 2000000
|
||||
|
|
@ -15,6 +15,8 @@ library
|
|||
, Week05.Homework2
|
||||
, Week05.NFT
|
||||
, Week05.Signed
|
||||
, Week05.Solution1
|
||||
, Week05.Solution2
|
||||
build-depends: aeson
|
||||
, base ^>=4.14.1.0
|
||||
, containers
|
||||
|
|
|
|||
104
code/week05/src/Week05/Solution1.hs
Normal file
104
code/week05/src/Week05/Solution1.hs
Normal file
|
|
@ -0,0 +1,104 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week05.Solution1 where
|
||||
|
||||
import Control.Monad hiding (fmap)
|
||||
import Data.Aeson (ToJSON, FromJSON)
|
||||
import Data.Default (Default (..))
|
||||
import Data.Text (Text)
|
||||
import Data.Void (Void)
|
||||
import GHC.Generics (Generic)
|
||||
import Plutus.Contract as Contract
|
||||
import Plutus.Trace.Emulator as Emulator
|
||||
import qualified PlutusTx
|
||||
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||
import Ledger hiding (mint, singleton)
|
||||
import Ledger.Constraints as Constraints
|
||||
import Ledger.TimeSlot
|
||||
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 (IO, Semigroup (..), Show (..), String)
|
||||
import Text.Printf (printf)
|
||||
import Wallet.Emulator.Wallet
|
||||
|
||||
{-# INLINABLE mkPolicy #-}
|
||||
mkPolicy :: PubKeyHash -> POSIXTime -> () -> ScriptContext -> Bool
|
||||
mkPolicy pkh deadline () ctx =
|
||||
traceIfFalse "signature missing" (txSignedBy info pkh) &&
|
||||
traceIfFalse "deadline missed" (to deadline `contains` txInfoValidRange info)
|
||||
where
|
||||
info = scriptContextTxInfo ctx
|
||||
|
||||
policy :: PubKeyHash -> POSIXTime -> Scripts.MintingPolicy
|
||||
policy pkh deadline = mkMintingPolicyScript $
|
||||
$$(PlutusTx.compile [|| \pkh' deadline' -> Scripts.wrapMintingPolicy $ mkPolicy pkh' deadline' ||])
|
||||
`PlutusTx.applyCode`
|
||||
PlutusTx.liftCode pkh
|
||||
`PlutusTx.applyCode`
|
||||
PlutusTx.liftCode deadline
|
||||
|
||||
curSymbol :: PubKeyHash -> POSIXTime -> CurrencySymbol
|
||||
curSymbol pkh deadline = scriptCurrencySymbol $ policy pkh deadline
|
||||
|
||||
data MintParams = MintParams
|
||||
{ mpTokenName :: !TokenName
|
||||
, mpDeadline :: !POSIXTime
|
||||
, mpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
type SignedSchema = Endpoint "mint" MintParams
|
||||
|
||||
mint :: MintParams -> Contract w SignedSchema Text ()
|
||||
mint mp = do
|
||||
pkh <- pubKeyHash <$> Contract.ownPubKey
|
||||
now <- Contract.currentTime
|
||||
let deadline = mpDeadline mp
|
||||
if now > deadline
|
||||
then Contract.logError @String "deadline passed"
|
||||
else do
|
||||
let val = Value.singleton (curSymbol pkh deadline) (mpTokenName mp) (mpAmount mp)
|
||||
lookups = Constraints.mintingPolicy $ policy pkh deadline
|
||||
tx = Constraints.mustMintValue val <> Constraints.mustValidateIn (to $ now + 5000)
|
||||
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
Contract.logInfo @String $ printf "forged %s" (show val)
|
||||
|
||||
endpoints :: Contract () SignedSchema Text ()
|
||||
endpoints = mint' >> endpoints
|
||||
where
|
||||
mint' = endpoint @"mint" >>= mint
|
||||
|
||||
mkSchemaDefinitions ''SignedSchema
|
||||
|
||||
mkKnownCurrencies []
|
||||
|
||||
test :: IO ()
|
||||
test = runEmulatorTraceIO $ do
|
||||
let tn = "ABC"
|
||||
deadline = slotToBeginPOSIXTime def 10
|
||||
h <- activateContractWallet (Wallet 1) endpoints
|
||||
callEndpoint @"mint" h $ MintParams
|
||||
{ mpTokenName = tn
|
||||
, mpDeadline = deadline
|
||||
, mpAmount = 555
|
||||
}
|
||||
void $ Emulator.waitNSlots 15
|
||||
callEndpoint @"mint" h $ MintParams
|
||||
{ mpTokenName = tn
|
||||
, mpDeadline = deadline
|
||||
, mpAmount = 555
|
||||
}
|
||||
void $ Emulator.waitNSlots 1
|
||||
94
code/week05/src/Week05/Solution2.hs
Normal file
94
code/week05/src/Week05/Solution2.hs
Normal file
|
|
@ -0,0 +1,94 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week05.Solution2 where
|
||||
|
||||
import Control.Monad hiding (fmap)
|
||||
import qualified Data.Map as Map
|
||||
import Data.Text (Text)
|
||||
import Data.Void (Void)
|
||||
import Plutus.Contract as Contract
|
||||
import Plutus.Trace.Emulator as Emulator
|
||||
import qualified PlutusTx
|
||||
import PlutusTx.Prelude hiding (Semigroup(..), unless)
|
||||
import Ledger hiding (mint, 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 (IO, Semigroup (..), Show (..), String)
|
||||
import Text.Printf (printf)
|
||||
import Wallet.Emulator.Wallet
|
||||
|
||||
{-# INLINABLE tn #-}
|
||||
tn :: TokenName
|
||||
tn = TokenName emptyByteString
|
||||
|
||||
{-# INLINABLE mkPolicy #-}
|
||||
mkPolicy :: TxOutRef -> () -> ScriptContext -> Bool
|
||||
mkPolicy oref () 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 -> Scripts.MintingPolicy
|
||||
policy oref = mkMintingPolicyScript $
|
||||
$$(PlutusTx.compile [|| Scripts.wrapMintingPolicy . mkPolicy ||])
|
||||
`PlutusTx.applyCode`
|
||||
PlutusTx.liftCode oref
|
||||
|
||||
curSymbol :: TxOutRef -> CurrencySymbol
|
||||
curSymbol = scriptCurrencySymbol . policy
|
||||
|
||||
type NFTSchema = Endpoint "mint" ()
|
||||
|
||||
mint :: Contract w NFTSchema Text ()
|
||||
mint = 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 1
|
||||
lookups = Constraints.mintingPolicy (policy oref) <> Constraints.unspentOutputs utxos
|
||||
tx = Constraints.mustMintValue 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
|
||||
h1 <- activateContractWallet (Wallet 1) endpoints
|
||||
h2 <- activateContractWallet (Wallet 2) endpoints
|
||||
callEndpoint @"mint" h1 ()
|
||||
callEndpoint @"mint" h2 ()
|
||||
void $ Emulator.waitNSlots 1
|
||||
Loading…
Reference in a new issue