mirror of
https://github.com/FiloSpaTeam/plutus-pioneer-program.git
synced 2024-11-14 02:42:35 +01:00
week 3
This commit is contained in:
Lars Brünjes
parent
234e2a205a
commit
63970a7edc
5 changed files with 351 additions and 73 deletions
13
README.md
13
README.md
|
|
@ -15,10 +15,17 @@
|
|||
- Low-level, untyped on-chain validation scripts.
|
||||
- High-level, typed on-chain validation scripts.
|
||||
|
||||
- [Lecture #3](https://youtu.be/Lk1eIVm_ZTQ)
|
||||
|
||||
- Script context.
|
||||
- Time handling.
|
||||
- Parameterized contracts.
|
||||
|
||||
## Code Examples
|
||||
|
||||
- Lecture #1: [English Auction](code/week01)
|
||||
- Lecture #2: [Simple Validation](code/week02)
|
||||
- Lecture #3: [Validation Context & Parameterized Contracts](code/week03)
|
||||
|
||||
## Exercises
|
||||
|
||||
|
|
@ -41,6 +48,12 @@
|
|||
- Fix and complete the code in the [Homework1](code/week02/src/Week02/Homework1.hs) module.
|
||||
- Fix and complete the code in the [Homework2](code/week02/src/Week02/Homework2.hs) module.
|
||||
|
||||
- Week #3
|
||||
|
||||
- Fix and complete the code in the [Homework1](code/week03/src/Week02/Homework1.hs) module.
|
||||
- Fix and complete the code in the [Homework2](code/week03/src/Week02/Homework2.hs) module.
|
||||
|
||||
|
||||
## Solutions
|
||||
|
||||
- Week #2
|
||||
|
|
|
|||
|
|
@ -11,6 +11,8 @@ License-files: LICENSE
|
|||
library
|
||||
hs-source-dirs: src
|
||||
exposed-modules: Week03.IsData
|
||||
, Week03.Homework1
|
||||
, Week03.Homework2
|
||||
, Week03.Parameterized
|
||||
, Week03.Vesting
|
||||
build-depends: aeson
|
||||
|
|
|
|||
133
code/week03/src/Week03/Homework1.hs
Normal file
133
code/week03/src/Week03/Homework1.hs
Normal file
|
|
@ -0,0 +1,133 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week03.Homework1 where
|
||||
|
||||
import Control.Monad hiding (fmap)
|
||||
import Data.Aeson (ToJSON, FromJSON)
|
||||
import Data.Map as Map
|
||||
import Data.Text (Text)
|
||||
import Data.Void (Void)
|
||||
import GHC.Generics (Generic)
|
||||
import Plutus.Contract hiding (when)
|
||||
import qualified PlutusTx
|
||||
import PlutusTx.Prelude hiding (unless)
|
||||
import Ledger hiding (singleton)
|
||||
import Ledger.Constraints as Constraints
|
||||
import qualified Ledger.Typed.Scripts as Scripts
|
||||
import Ledger.Ada as Ada
|
||||
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||
import Playground.Types (KnownCurrency (..))
|
||||
import qualified Prelude as P
|
||||
import Text.Printf (printf)
|
||||
|
||||
data VestingDatum = VestingDatum
|
||||
{ beneficiary1 :: PubKeyHash
|
||||
, beneficiary2 :: PubKeyHash
|
||||
, deadline :: Slot
|
||||
} deriving Show
|
||||
|
||||
PlutusTx.unstableMakeIsData ''VestingDatum
|
||||
|
||||
{-# INLINABLE mkValidator #-}
|
||||
-- This should validate if either beneficiary1 has signed the transaction and the current slot is before or at the deadline
|
||||
-- or if beneficiary2 has signed the transaction and the deadline has passed.
|
||||
mkValidator :: VestingDatum -> () -> ScriptContext -> Bool
|
||||
mkValidator _ _ _ = False -- FIX ME!
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ScriptType Vesting where
|
||||
type instance DatumType Vesting = VestingDatum
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
inst :: Scripts.ScriptInstance Vesting
|
||||
inst = Scripts.validator @Vesting
|
||||
$$(PlutusTx.compile [|| mkValidator ||])
|
||||
$$(PlutusTx.compile [|| wrap ||])
|
||||
where
|
||||
wrap = Scripts.wrapValidator @VestingDatum @()
|
||||
|
||||
validator :: Validator
|
||||
validator = Scripts.validatorScript inst
|
||||
|
||||
scrAddress :: Ledger.Address
|
||||
scrAddress = scriptAddress validator
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !Slot
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
type VestingSchema =
|
||||
BlockchainActions
|
||||
.\/ Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" ()
|
||||
|
||||
give :: (HasBlockchainActions s, AsContractError e) => GiveParams -> Contract w s e ()
|
||||
give gp = do
|
||||
pkh <- pubKeyHash <$> ownPubKey
|
||||
let dat = VestingDatum
|
||||
{ beneficiary1 = gpBeneficiary gp
|
||||
, beneficiary2 = pkh
|
||||
, deadline = gpDeadline gp
|
||||
}
|
||||
tx = mustPayToTheScript dat $ Ada.lovelaceValueOf $ gpAmount gp
|
||||
ledgerTx <- submitTxConstraints inst 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. (HasBlockchainActions s, AsContractError e) => Contract w s e ()
|
||||
grab = do
|
||||
now <- currentSlot
|
||||
pkh <- pubKeyHash <$> ownPubKey
|
||||
utxos <- utxoAt scrAddress
|
||||
let utxos1 = Map.filter (isSuitable $ \dat -> beneficiary1 dat == pkh && now <= deadline dat) utxos
|
||||
utxos2 = Map.filter (isSuitable $ \dat -> beneficiary2 dat == pkh && now > deadline dat) utxos
|
||||
logInfo @String $ printf "found %d gift(s) to grab" (Map.size utxos1 P.+ Map.size utxos2)
|
||||
unless (Map.null utxos1) $ do
|
||||
let orefs = fst <$> Map.toList utxos1
|
||||
lookups = Constraints.unspentOutputs utxos1 P.<>
|
||||
Constraints.otherScript validator
|
||||
tx :: TxConstraints Void Void
|
||||
tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ PlutusTx.toData () | oref <- orefs] P.<>
|
||||
mustValidateIn (to now)
|
||||
void $ submitTxConstraintsWith @Void lookups tx
|
||||
unless (Map.null utxos2) $ do
|
||||
let orefs = fst <$> Map.toList utxos2
|
||||
lookups = Constraints.unspentOutputs utxos2 P.<>
|
||||
Constraints.otherScript validator
|
||||
tx :: TxConstraints Void Void
|
||||
tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ PlutusTx.toData () | oref <- orefs] P.<>
|
||||
mustValidateIn (from now)
|
||||
void $ submitTxConstraintsWith @Void lookups tx
|
||||
where
|
||||
isSuitable :: (VestingDatum -> Bool) -> TxOutTx -> Bool
|
||||
isSuitable p o = case txOutDatumHash $ txOutTxOut o of
|
||||
Nothing -> False
|
||||
Just h -> case Map.lookup h $ txData $ txOutTxTx o of
|
||||
Nothing -> False
|
||||
Just (Datum e) -> maybe False p $ PlutusTx.fromData e
|
||||
|
||||
endpoints :: Contract () VestingSchema Text ()
|
||||
endpoints = (give' `select` grab') >> endpoints
|
||||
where
|
||||
give' = endpoint @"give" >>= give
|
||||
grab' = endpoint @"grab" >> grab
|
||||
|
||||
mkSchemaDefinitions ''VestingSchema
|
||||
|
||||
mkKnownCurrencies []
|
||||
111
code/week03/src/Week03/Homework2.hs
Normal file
111
code/week03/src/Week03/Homework2.hs
Normal file
|
|
@ -0,0 +1,111 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE MultiParamTypeClasses #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week03.Homework2 where
|
||||
|
||||
import Control.Monad hiding (fmap)
|
||||
import Data.Aeson (ToJSON, FromJSON)
|
||||
import Data.Map as Map
|
||||
import Data.Text (Text)
|
||||
import Data.Void (Void)
|
||||
import GHC.Generics (Generic)
|
||||
import Plutus.Contract hiding (when)
|
||||
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.Ada as Ada
|
||||
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||
import Playground.Types (KnownCurrency (..))
|
||||
import Prelude (Semigroup (..))
|
||||
import Text.Printf (printf)
|
||||
|
||||
{-# INLINABLE mkValidator #-}
|
||||
mkValidator :: PubKeyHash -> Slot -> () -> ScriptContext -> Bool
|
||||
mkValidator _ _ _ _ = False -- FIX ME!
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ScriptType Vesting where
|
||||
type instance DatumType Vesting = Slot
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
inst :: PubKeyHash -> Scripts.ScriptInstance Vesting
|
||||
inst = undefined -- IMPLEMENT ME!
|
||||
|
||||
validator :: PubKeyHash -> Validator
|
||||
validator = undefined -- IMPLEMENT ME!
|
||||
|
||||
scrAddress :: PubKeyHash -> Ledger.Address
|
||||
scrAddress = undefined -- IMPLEMENT ME!
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !Slot
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
type VestingSchema =
|
||||
BlockchainActions
|
||||
.\/ Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" ()
|
||||
|
||||
give :: (HasBlockchainActions s, 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 (inst 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. (HasBlockchainActions s, AsContractError e) => Contract w s e ()
|
||||
grab = do
|
||||
now <- currentSlot
|
||||
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 :: Slot -> 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 []
|
||||
|
|
@ -1,27 +1,17 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE MultiParamTypeClasses #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
module Week03.Parameterized
|
||||
( give
|
||||
, grab
|
||||
, ParameterizedSchema
|
||||
, endpoints
|
||||
, schemas
|
||||
, registeredKnownCurrencies
|
||||
, printJson
|
||||
, printSchemas
|
||||
, ensureKnownCurrencies
|
||||
, stage
|
||||
) where
|
||||
module Week03.Parameterized where
|
||||
|
||||
import Control.Monad hiding (fmap)
|
||||
import Data.Aeson (ToJSON, FromJSON)
|
||||
|
|
@ -30,86 +20,115 @@ import Data.Text (Text)
|
|||
import Data.Void (Void)
|
||||
import GHC.Generics (Generic)
|
||||
import Plutus.Contract hiding (when)
|
||||
import PlutusTx (Data (..))
|
||||
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.Ada as Ada
|
||||
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage)
|
||||
import Playground.Contract (printJson, printSchemas, ensureKnownCurrencies, stage, ToSchema)
|
||||
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||
import Playground.Types (KnownCurrency (..))
|
||||
import Prelude (Semigroup (..))
|
||||
import Schema (ToSchema)
|
||||
import Text.Printf (printf)
|
||||
|
||||
{-# INLINABLE mkParameterizedValidator #-}
|
||||
mkParameterizedValidator :: Integer -> () -> Integer -> ScriptContext -> Bool
|
||||
mkParameterizedValidator r () n _ = traceIfFalse "UNEXPECTED REDEEMER" (n == r)
|
||||
data VestingParam = VestingParam
|
||||
{ beneficiary :: PubKeyHash
|
||||
, deadline :: Slot
|
||||
} deriving Show
|
||||
|
||||
data Parameterizing
|
||||
instance Scripts.ScriptType Parameterizing where
|
||||
type instance RedeemerType Parameterizing = Integer
|
||||
type instance DatumType Parameterizing = ()
|
||||
PlutusTx.unstableMakeIsData ''VestingParam
|
||||
PlutusTx.makeLift ''VestingParam
|
||||
|
||||
parameterizedInstance :: Integer -> Scripts.ScriptInstance Parameterizing
|
||||
parameterizedInstance r = Scripts.validator @Parameterizing
|
||||
($$(PlutusTx.compile [|| mkParameterizedValidator ||])
|
||||
`PlutusTx.applyCode`
|
||||
PlutusTx.liftCode r)
|
||||
{-# INLINABLE mkValidator #-}
|
||||
mkValidator :: VestingParam -> () -> () -> ScriptContext -> Bool
|
||||
mkValidator p () () ctx =
|
||||
traceIfFalse "beneficiary's signature missing" checkSig &&
|
||||
traceIfFalse "deadline not reached" checkDeadline
|
||||
where
|
||||
info :: TxInfo
|
||||
info = scriptContextTxInfo ctx
|
||||
|
||||
checkSig :: Bool
|
||||
checkSig = beneficiary p `elem` txInfoSignatories info
|
||||
|
||||
checkDeadline :: Bool
|
||||
checkDeadline = from (deadline p) `contains` txInfoValidRange info
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ScriptType Vesting where
|
||||
type instance DatumType Vesting = ()
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
inst :: VestingParam -> Scripts.ScriptInstance Vesting
|
||||
inst p = Scripts.validator @Vesting
|
||||
($$(PlutusTx.compile [|| mkValidator ||]) `PlutusTx.applyCode` PlutusTx.liftCode p)
|
||||
$$(PlutusTx.compile [|| wrap ||])
|
||||
where
|
||||
wrap = Scripts.wrapValidator @() @Integer
|
||||
wrap = Scripts.wrapValidator @() @()
|
||||
|
||||
parameterizedValidator :: Integer -> Validator
|
||||
parameterizedValidator = Scripts.validatorScript . parameterizedInstance
|
||||
validator :: VestingParam -> Validator
|
||||
validator = Scripts.validatorScript . inst
|
||||
|
||||
parameterizedAddress :: Integer -> Ledger.Address
|
||||
parameterizedAddress = scriptAddress . parameterizedValidator
|
||||
|
||||
type ParameterizedSchema =
|
||||
BlockchainActions
|
||||
.\/ Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" GrabParams
|
||||
scrAddress :: VestingParam -> Ledger.Address
|
||||
scrAddress = scriptAddress . validator
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ giveAmount :: Integer
|
||||
, giveParameter :: Integer
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !Slot
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
data GrabParams = GrabParams
|
||||
{ grabParameter :: Integer
|
||||
, grabRedeemer :: Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
type VestingSchema =
|
||||
BlockchainActions
|
||||
.\/ Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" Slot
|
||||
|
||||
give :: (HasBlockchainActions s, AsContractError e) => GiveParams -> Contract w s e ()
|
||||
give p = do
|
||||
let amount = giveAmount p
|
||||
let tx = mustPayToTheScript () $ Ada.lovelaceValueOf amount
|
||||
ledgerTx <- submitTxConstraints (parameterizedInstance $ giveParameter p) tx
|
||||
give gp = do
|
||||
let p = VestingParam
|
||||
{ beneficiary = gpBeneficiary gp
|
||||
, deadline = gpDeadline gp
|
||||
}
|
||||
tx = mustPayToTheScript () $ Ada.lovelaceValueOf $ gpAmount gp
|
||||
ledgerTx <- submitTxConstraints (inst p) tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
logInfo @String $ printf "made a gift of %d lovelace" amount
|
||||
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. (HasBlockchainActions s, AsContractError e) => GrabParams -> Contract w s e ()
|
||||
grab p = do
|
||||
let par = grabParameter p
|
||||
utxos <- utxoAt $ parameterizedAddress par
|
||||
let orefs = fst <$> Map.toList utxos
|
||||
lookups = Constraints.unspentOutputs utxos <>
|
||||
Constraints.otherScript (parameterizedValidator par)
|
||||
tx :: TxConstraints Void Void
|
||||
tx = mconcat [mustSpendScriptOutput oref $ Redeemer $ I $ grabRedeemer p | oref <- orefs]
|
||||
ledgerTx <- submitTxConstraintsWith @Void lookups tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
logInfo @String $ "collected gifts"
|
||||
grab :: forall w s e. (HasBlockchainActions s, AsContractError e) => Slot -> Contract w s e ()
|
||||
grab d = do
|
||||
now <- currentSlot
|
||||
pkh <- pubKeyHash <$> ownPubKey
|
||||
if now < d
|
||||
then logInfo @String $ "too early"
|
||||
else do
|
||||
let p = VestingParam
|
||||
{ beneficiary = pkh
|
||||
, deadline = d
|
||||
}
|
||||
utxos <- utxoAt $ scrAddress p
|
||||
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 p)
|
||||
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"
|
||||
|
||||
endpoints :: Contract () ParameterizedSchema Text ()
|
||||
endpoints :: Contract () VestingSchema Text ()
|
||||
endpoints = (give' `select` grab') >> endpoints
|
||||
where
|
||||
give' = endpoint @"give" >>= give
|
||||
grab' = endpoint @"grab" >>= grab
|
||||
|
||||
mkSchemaDefinitions ''ParameterizedSchema
|
||||
mkSchemaDefinitions ''VestingSchema
|
||||
|
||||
mkKnownCurrencies []
|
||||
|
|
|
|||
Loading…
Reference in a new issue