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Merge branch 'solutions'
This commit is contained in:
commit
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13
README.md
13
README.md
|
@ -18,10 +18,17 @@
|
|||
- Low-level, untyped on-chain validation scripts.
|
||||
- High-level, typed on-chain validation scripts.
|
||||
|
||||
- [Lecture #3](https://youtu.be/6_rfCCY9_gY)
|
||||
|
||||
- Script contexts.
|
||||
- Time handling.
|
||||
- Parameterized contracts.
|
||||
|
||||
## Code Examples
|
||||
|
||||
- Lecture #1: [English Auction](code/week01)
|
||||
- Lecture #2: [Simple validation](code/week02)
|
||||
- Lecture #2: [Script Context & Parameterized Contracts](code/week03)
|
||||
|
||||
## Exercises
|
||||
|
||||
|
@ -44,6 +51,11 @@
|
|||
- 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/Week03/Homework1.hs) module.
|
||||
- Fix and complete the code in the [Homework2](code/week03/src/Week03/Homework2.hs) module.
|
||||
|
||||
## Some Plutus Modules
|
||||
|
||||
- [`Language.Marlowe.Semantics`](https://github.com/input-output-hk/plutus/blob/master/marlowe/src/Language/Marlowe/Semantics.hs), contains Marlowe types and semantics.
|
||||
|
@ -51,6 +63,7 @@
|
|||
- [`Plutus.Contract.Test`](https://github.com/input-output-hk/plutus/blob/master/plutus-contract/src/Plutus/Contract/Test.hs), provides various ways to write tests for Plutus contracts.
|
||||
- [`Plutus.Contract.Test.ContractModel`](https://github.com/input-output-hk/plutus/blob/master/plutus-contract/src/Plutus/Contract/Test/ContractModel.hs), support for property based testing of Plutus contracts.
|
||||
- [`Plutus.Contracts.Uniswap`](https://github.com/input-output-hk/plutus/blob/master/plutus-use-cases/src/Plutus/Contracts/Uniswap.hs), an implementation of Uniswap in Plutus.
|
||||
- [`Plutus.Ledger.TimeSlot`](https://github.com/input-output-hk/plutus/blob/master/plutus-ledger/src/Ledger/TimeSlot.hs), conversions between `Slot` and `POSIXTime`.
|
||||
- [`Plutus.PAB.Webserver.API`](https://github.com/input-output-hk/plutus/blob/master/plutus-pab/src/Plutus/PAB/Webserver/API.hs), contains the HTTP-interface provided by the PAB.
|
||||
- [`Plutus.Trace.Emulator`](https://github.com/input-output-hk/plutus/blob/master/plutus-contract/src/Plutus/Trace/Emulator.hs), contains types and functions related to traces.
|
||||
- [`Plutus.V1.Ledger.Ada`](https://github.com/input-output-hk/plutus/blob/master/plutus-ledger-api/src/Plutus/V1/Ledger/Ada.hs), contains support for the Ada currency.
|
||||
|
|
23
code/week03/.devcontainer/devcontainer.json
Normal file
23
code/week03/.devcontainer/devcontainer.json
Normal file
|
@ -0,0 +1,23 @@
|
|||
{
|
||||
"name": "Plutus Starter Project",
|
||||
"image": "plutus-devcontainer:latest",
|
||||
|
||||
"remoteUser": "plutus",
|
||||
|
||||
"mounts": [
|
||||
// This shares cabal's remote repository state with the host. We don't mount the whole of '.cabal', because
|
||||
// 1. '.cabal/config' contains absolute paths that will only make sense on the host, and
|
||||
// 2. '.cabal/store' is not necessarily portable to different version of cabal etc.
|
||||
"source=${localEnv:HOME}/.cabal/packages,target=/home/plutus/.cabal/packages,type=bind,consistency=cached",
|
||||
],
|
||||
|
||||
"settings": {
|
||||
// Note: don't change from bash so it runs .bashrc
|
||||
"terminal.integrated.shell.linux": "/bin/bash"
|
||||
},
|
||||
|
||||
// IDs of extensions inside container
|
||||
"extensions": [
|
||||
"haskell.haskell"
|
||||
],
|
||||
}
|
1
code/week03/.gitignore
vendored
Normal file
1
code/week03/.gitignore
vendored
Normal file
|
@ -0,0 +1 @@
|
|||
dist-newstyle/
|
201
code/week03/LICENSE
Normal file
201
code/week03/LICENSE
Normal file
|
@ -0,0 +1,201 @@
|
|||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
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193
code/week03/cabal.project
Normal file
193
code/week03/cabal.project
Normal file
|
@ -0,0 +1,193 @@
|
|||
index-state: 2021-07-07T00:00:00Z
|
||||
|
||||
packages: ./.
|
||||
|
||||
-- You never, ever, want this.
|
||||
write-ghc-environment-files: never
|
||||
|
||||
-- Always build tests and benchmarks.
|
||||
tests: true
|
||||
benchmarks: true
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/plutus.git
|
||||
subdir:
|
||||
freer-extras
|
||||
playground-common
|
||||
plutus-chain-index
|
||||
plutus-core
|
||||
plutus-contract
|
||||
plutus-ledger
|
||||
plutus-ledger-api
|
||||
plutus-tx
|
||||
plutus-tx-plugin
|
||||
prettyprinter-configurable
|
||||
quickcheck-dynamic
|
||||
word-array
|
||||
tag: 219992289c6615e197069d022735cb4059d43229
|
||||
|
||||
-- The following sections are copied from the 'plutus' repository cabal.project at the revision
|
||||
-- given above.
|
||||
-- This is necessary because the 'plutus' libraries depend on a number of other libraries which are
|
||||
-- not on Hackage, and so need to be pulled in as `source-repository-package`s themselves. Make sure to
|
||||
-- re-update this section from the template when you do an upgrade.
|
||||
|
||||
-- This is also needed so evenful-sql-common will build with a
|
||||
-- newer version of persistent. See stack.yaml for the mirrored
|
||||
-- configuration.
|
||||
package eventful-sql-common
|
||||
ghc-options: -XDerivingStrategies -XStandaloneDeriving -XUndecidableInstances -XDataKinds -XFlexibleInstances -XMultiParamTypeClasses
|
||||
|
||||
allow-newer:
|
||||
-- Pins to an old version of Template Haskell, unclear if/when it will be updated
|
||||
size-based:template-haskell
|
||||
|
||||
-- The following two dependencies are needed by plutus.
|
||||
, eventful-sql-common:persistent
|
||||
, eventful-sql-common:persistent-template
|
||||
, ouroboros-consensus-byron:formatting
|
||||
, beam-core:aeson
|
||||
, beam-sqlite:aeson
|
||||
, beam-sqlite:dlist
|
||||
, beam-migrate:aeson
|
||||
|
||||
constraints:
|
||||
-- big breaking change here, inline-r doens't have an upper bound
|
||||
singletons < 3.0
|
||||
-- breaks eventful even more than it already was
|
||||
, persistent-template < 2.12
|
||||
-- bizarre issue: in earlier versions they define their own 'GEq', in newer
|
||||
-- ones they reuse the one from 'some', but there isn't e.g. a proper version
|
||||
-- constraint from dependent-sum-template (which is the library we actually use).
|
||||
, dependent-sum > 0.6.2.0
|
||||
|
||||
-- See the note on nix/pkgs/default.nix:agdaPackages for why this is here.
|
||||
-- (NOTE this will change to ieee754 in newer versions of nixpkgs).
|
||||
extra-packages: ieee, filemanip
|
||||
|
||||
-- Drops an instance breaking our code. Should be released to Hackage eventually.
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/Quid2/flat.git
|
||||
tag: 95e5d7488451e43062ca84d5376b3adcc465f1cd
|
||||
|
||||
-- Needs some patches, but upstream seems to be fairly dead (no activity in > 1 year)
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/shmish111/purescript-bridge.git
|
||||
tag: 6a92d7853ea514be8b70bab5e72077bf5a510596
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/shmish111/servant-purescript.git
|
||||
tag: a76104490499aa72d40c2790d10e9383e0dbde63
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-crypto.git
|
||||
tag: ce8f1934e4b6252084710975bd9bbc0a4648ece4
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-base
|
||||
tag: a715c7f420770b70bbe95ca51d3dec83866cb1bd
|
||||
subdir:
|
||||
binary
|
||||
binary/test
|
||||
slotting
|
||||
cardano-crypto-class
|
||||
cardano-crypto-praos
|
||||
cardano-crypto-tests
|
||||
strict-containers
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-prelude
|
||||
tag: fd773f7a58412131512b9f694ab95653ac430852
|
||||
subdir:
|
||||
cardano-prelude
|
||||
cardano-prelude-test
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/ouroboros-network
|
||||
tag: e338f2cf8e1078fbda9555dd2b169c6737ef6774
|
||||
subdir:
|
||||
monoidal-synchronisation
|
||||
typed-protocols
|
||||
typed-protocols-examples
|
||||
ouroboros-network
|
||||
ouroboros-network-testing
|
||||
ouroboros-network-framework
|
||||
ouroboros-consensus
|
||||
ouroboros-consensus-byron
|
||||
ouroboros-consensus-cardano
|
||||
ouroboros-consensus-shelley
|
||||
io-sim
|
||||
io-classes
|
||||
network-mux
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/iohk-monitoring-framework
|
||||
tag: 34abfb7f4f5610cabb45396e0496472446a0b2ca
|
||||
subdir:
|
||||
iohk-monitoring
|
||||
tracer-transformers
|
||||
contra-tracer
|
||||
plugins/backend-aggregation
|
||||
plugins/backend-ekg
|
||||
plugins/backend-monitoring
|
||||
plugins/backend-trace-forwarder
|
||||
plugins/scribe-systemd
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-ledger-specs
|
||||
tag: b8f1ebb46a91f1c634e616feb89ae34de5937e17
|
||||
subdir:
|
||||
byron/chain/executable-spec
|
||||
byron/crypto
|
||||
byron/crypto/test
|
||||
byron/ledger/executable-spec
|
||||
byron/ledger/impl
|
||||
byron/ledger/impl/test
|
||||
semantics/executable-spec
|
||||
semantics/small-steps-test
|
||||
shelley/chain-and-ledger/dependencies/non-integer
|
||||
shelley/chain-and-ledger/executable-spec
|
||||
shelley/chain-and-ledger/shelley-spec-ledger-test
|
||||
shelley-ma/impl
|
||||
cardano-ledger-core
|
||||
alonzo/impl
|
||||
|
||||
-- A lot of plutus dependencies have to be synchronized with the dependencies of
|
||||
-- cardano-node. If you update cardano-node, please make sure that all dependencies
|
||||
-- of cardano-node are also updated.
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/cardano-node.git
|
||||
tag: f3ef4ed72894499160f2330b91572a159005c148
|
||||
subdir:
|
||||
cardano-api
|
||||
cardano-node
|
||||
cardano-cli
|
||||
cardano-config
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/Win32-network
|
||||
tag: 94153b676617f8f33abe8d8182c37377d2784bd1
|
||||
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/hedgehog-extras
|
||||
tag: 8bcd3c9dc22cc44f9fcfe161f4638a384fc7a187
|
||||
|
||||
-- The following dependencies are not mirrored in the
|
||||
-- stack.yaml file, but they are needed regardless by cabal.
|
||||
source-repository-package
|
||||
type: git
|
||||
location: https://github.com/input-output-hk/goblins
|
||||
tag: cde90a2b27f79187ca8310b6549331e59595e7ba
|
4
code/week03/hie.yaml
Normal file
4
code/week03/hie.yaml
Normal file
|
@ -0,0 +1,4 @@
|
|||
cradle:
|
||||
cabal:
|
||||
- path: "./src"
|
||||
component: "lib:plutus-pioneer-program-week03"
|
31
code/week03/plutus-pioneer-program-week03.cabal
Normal file
31
code/week03/plutus-pioneer-program-week03.cabal
Normal file
|
@ -0,0 +1,31 @@
|
|||
Cabal-Version: 2.4
|
||||
Name: plutus-pioneer-program-week03
|
||||
Version: 0.1.0.0
|
||||
Author: Lars Bruenjes
|
||||
Maintainer: brunjlar@gmail.com
|
||||
Build-Type: Simple
|
||||
Copyright: © 2021 Lars Bruenjes
|
||||
License: Apache-2.0
|
||||
License-files: LICENSE
|
||||
|
||||
library
|
||||
hs-source-dirs: src
|
||||
exposed-modules: Week03.Homework1
|
||||
, Week03.Homework2
|
||||
, Week03.Parameterized
|
||||
, Week03.Solution1
|
||||
, Week03.Solution2
|
||||
, Week03.Vesting
|
||||
build-depends: aeson
|
||||
, base ^>=4.14.1.0
|
||||
, containers
|
||||
, data-default
|
||||
, playground-common
|
||||
, plutus-contract
|
||||
, plutus-ledger
|
||||
, plutus-ledger-api
|
||||
, plutus-tx-plugin
|
||||
, plutus-tx
|
||||
, text
|
||||
default-language: Haskell2010
|
||||
ghc-options: -Wall -fobject-code -fno-ignore-interface-pragmas -fno-omit-interface-pragmas -fno-strictness -fno-spec-constr -fno-specialise
|
138
code/week03/src/Week03/Homework1.hs
Normal file
138
code/week03/src/Week03/Homework1.hs
Normal file
|
@ -0,0 +1,138 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
|
||||
|
||||
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
|
||||
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 Prelude (IO)
|
||||
import qualified Prelude as P
|
||||
import Text.Printf (printf)
|
||||
|
||||
data VestingDatum = VestingDatum
|
||||
{ beneficiary1 :: PubKeyHash
|
||||
, beneficiary2 :: PubKeyHash
|
||||
, deadline :: POSIXTime
|
||||
} deriving P.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.ValidatorTypes Vesting where
|
||||
type instance DatumType Vesting = VestingDatum
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
typedValidator :: Scripts.TypedValidator Vesting
|
||||
typedValidator = Scripts.mkTypedValidator @Vesting
|
||||
$$(PlutusTx.compile [|| mkValidator ||])
|
||||
$$(PlutusTx.compile [|| wrap ||])
|
||||
where
|
||||
wrap = Scripts.wrapValidator @VestingDatum @()
|
||||
|
||||
validator :: Validator
|
||||
validator = Scripts.validatorScript typedValidator
|
||||
|
||||
valHash :: Ledger.ValidatorHash
|
||||
valHash = Scripts.validatorHash typedValidator
|
||||
|
||||
scrAddress :: Ledger.Address
|
||||
scrAddress = scriptAddress validator
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !POSIXTime
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
type VestingSchema =
|
||||
Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" ()
|
||||
|
||||
give :: 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 typedValidator tx
|
||||
void $ awaitTxConfirmed $ txId ledgerTx
|
||||
logInfo @P.String $ printf "made a gift of %d lovelace to %s with deadline %s"
|
||||
(gpAmount gp)
|
||||
(P.show $ gpBeneficiary gp)
|
||||
(P.show $ gpDeadline gp)
|
||||
|
||||
grab :: forall w s e. AsContractError e => Contract w s e ()
|
||||
grab = do
|
||||
now <- currentTime
|
||||
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 @P.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 []
|
112
code/week03/src/Week03/Homework2.hs
Normal file
112
code/week03/src/Week03/Homework2.hs
Normal file
|
@ -0,0 +1,112 @@
|
|||
{-# 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
|
||||
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 (IO, Semigroup (..), Show (..), String, undefined)
|
||||
import Text.Printf (printf)
|
||||
|
||||
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
|
||||
|
||||
{-# INLINABLE mkValidator #-}
|
||||
mkValidator :: PubKeyHash -> POSIXTime -> () -> ScriptContext -> Bool
|
||||
mkValidator _ _ _ _ = False -- FIX ME!
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ValidatorTypes Vesting where
|
||||
type instance DatumType Vesting = POSIXTime
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
typedValidator :: PubKeyHash -> Scripts.TypedValidator Vesting
|
||||
typedValidator = undefined -- IMPLEMENT ME!
|
||||
|
||||
validator :: PubKeyHash -> Validator
|
||||
validator = undefined -- IMPLEMENT ME!
|
||||
|
||||
scrAddress :: PubKeyHash -> Ledger.Address
|
||||
scrAddress = undefined -- IMPLEMENT ME!
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !POSIXTime
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
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 []
|
137
code/week03/src/Week03/Parameterized.hs
Normal file
137
code/week03/src/Week03/Parameterized.hs
Normal file
|
@ -0,0 +1,137 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE MultiParamTypeClasses #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
|
||||
|
||||
module Week03.Parameterized 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
|
||||
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, ToSchema)
|
||||
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||
import Playground.Types (KnownCurrency (..))
|
||||
import Prelude (IO, Semigroup (..), Show (..), String)
|
||||
import Text.Printf (printf)
|
||||
|
||||
data VestingParam = VestingParam
|
||||
{ beneficiary :: PubKeyHash
|
||||
, deadline :: POSIXTime
|
||||
} deriving Show
|
||||
|
||||
PlutusTx.makeLift ''VestingParam
|
||||
|
||||
{-# INLINABLE mkValidator #-}
|
||||
mkValidator :: VestingParam -> () -> () -> ScriptContext -> Bool
|
||||
mkValidator p () () ctx = traceIfFalse "beneficiary's signature missing" signedByBeneficiary &&
|
||||
traceIfFalse "deadline not reached" deadlineReached
|
||||
where
|
||||
info :: TxInfo
|
||||
info = scriptContextTxInfo ctx
|
||||
|
||||
signedByBeneficiary :: Bool
|
||||
signedByBeneficiary = txSignedBy info $ beneficiary p
|
||||
|
||||
deadlineReached :: Bool
|
||||
deadlineReached = contains (from $ deadline p) $ txInfoValidRange info
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ValidatorTypes Vesting where
|
||||
type instance DatumType Vesting = ()
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
typedValidator :: VestingParam -> Scripts.TypedValidator Vesting
|
||||
typedValidator p = Scripts.mkTypedValidator @Vesting
|
||||
($$(PlutusTx.compile [|| mkValidator ||]) `PlutusTx.applyCode` PlutusTx.liftCode p)
|
||||
$$(PlutusTx.compile [|| wrap ||])
|
||||
where
|
||||
wrap = Scripts.wrapValidator @() @()
|
||||
|
||||
validator :: VestingParam -> Validator
|
||||
validator = Scripts.validatorScript . typedValidator
|
||||
|
||||
valHash :: VestingParam -> Ledger.ValidatorHash
|
||||
valHash = Scripts.validatorHash . typedValidator
|
||||
|
||||
scrAddress :: VestingParam -> Ledger.Address
|
||||
scrAddress = scriptAddress . validator
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !POSIXTime
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
type VestingSchema =
|
||||
Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" POSIXTime
|
||||
|
||||
give :: AsContractError e => GiveParams -> Contract w s e ()
|
||||
give gp = do
|
||||
let p = VestingParam
|
||||
{ beneficiary = gpBeneficiary gp
|
||||
, deadline = gpDeadline gp
|
||||
}
|
||||
tx = mustPayToTheScript () $ 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 => POSIXTime -> Contract w s e ()
|
||||
grab d = do
|
||||
now <- currentTime
|
||||
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 () VestingSchema Text ()
|
||||
endpoints = (give' `select` grab') >> endpoints
|
||||
where
|
||||
give' = endpoint @"give" >>= give
|
||||
grab' = endpoint @"grab" >>= grab
|
||||
|
||||
mkSchemaDefinitions ''VestingSchema
|
||||
|
||||
mkKnownCurrencies []
|
145
code/week03/src/Week03/Solution1.hs
Normal file
145
code/week03/src/Week03/Solution1.hs
Normal file
|
@ -0,0 +1,145 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
|
||||
|
||||
module Week03.Solution1 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
|
||||
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 Prelude (IO, Show (..), String)
|
||||
import qualified Prelude as P
|
||||
import Text.Printf (printf)
|
||||
|
||||
data VestingDatum = VestingDatum
|
||||
{ beneficiary1 :: PubKeyHash
|
||||
, beneficiary2 :: PubKeyHash
|
||||
, deadline :: POSIXTime
|
||||
} deriving Show
|
||||
|
||||
PlutusTx.unstableMakeIsData ''VestingDatum
|
||||
|
||||
{-# INLINABLE mkValidator #-}
|
||||
mkValidator :: VestingDatum -> () -> ScriptContext -> Bool
|
||||
mkValidator dat () ctx
|
||||
| (beneficiary1 dat `elem` sigs) && (to (deadline dat) `contains` range) = True
|
||||
| (beneficiary2 dat `elem` sigs) && (from (1 + deadline dat) `contains` range) = True
|
||||
| otherwise = False
|
||||
where
|
||||
info :: TxInfo
|
||||
info = scriptContextTxInfo ctx
|
||||
|
||||
sigs :: [PubKeyHash]
|
||||
sigs = txInfoSignatories info
|
||||
|
||||
range :: POSIXTimeRange
|
||||
range = txInfoValidRange info
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ValidatorTypes Vesting where
|
||||
type instance DatumType Vesting = VestingDatum
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
typedValidator :: Scripts.TypedValidator Vesting
|
||||
typedValidator = Scripts.mkTypedValidator @Vesting
|
||||
$$(PlutusTx.compile [|| mkValidator ||])
|
||||
$$(PlutusTx.compile [|| wrap ||])
|
||||
where
|
||||
wrap = Scripts.wrapValidator @VestingDatum @()
|
||||
|
||||
validator :: Validator
|
||||
validator = Scripts.validatorScript typedValidator
|
||||
|
||||
scrAddress :: Ledger.Address
|
||||
scrAddress = scriptAddress validator
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !POSIXTime
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
type VestingSchema =
|
||||
Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" ()
|
||||
|
||||
give :: 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 typedValidator 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 <- 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 []
|
127
code/week03/src/Week03/Solution2.hs
Normal file
127
code/week03/src/Week03/Solution2.hs
Normal file
|
@ -0,0 +1,127 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE MultiParamTypeClasses #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
|
||||
|
||||
module Week03.Solution2 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
|
||||
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 (IO, Semigroup (..), Show (..), String)
|
||||
import Text.Printf (printf)
|
||||
|
||||
{-# INLINABLE mkValidator #-}
|
||||
mkValidator :: PubKeyHash -> POSIXTime -> () -> ScriptContext -> Bool
|
||||
mkValidator pkh s () ctx =
|
||||
traceIfFalse "beneficiary's signature missing" checkSig &&
|
||||
traceIfFalse "deadline not reached" checkDeadline
|
||||
where
|
||||
info :: TxInfo
|
||||
info = scriptContextTxInfo ctx
|
||||
|
||||
checkSig :: Bool
|
||||
checkSig = pkh `elem` txInfoSignatories info
|
||||
|
||||
checkDeadline :: Bool
|
||||
checkDeadline = from s `contains` txInfoValidRange info
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ValidatorTypes Vesting where
|
||||
type instance DatumType Vesting = POSIXTime
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
typedValidator :: PubKeyHash -> Scripts.TypedValidator Vesting
|
||||
typedValidator p = Scripts.mkTypedValidator @Vesting
|
||||
($$(PlutusTx.compile [|| mkValidator ||]) `PlutusTx.applyCode` PlutusTx.liftCode p)
|
||||
$$(PlutusTx.compile [|| wrap ||])
|
||||
where
|
||||
wrap = Scripts.wrapValidator @POSIXTime @()
|
||||
|
||||
validator :: PubKeyHash -> Validator
|
||||
validator = Scripts.validatorScript . typedValidator
|
||||
|
||||
scrAddress :: PubKeyHash -> Ledger.Address
|
||||
scrAddress = scriptAddress . validator
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !POSIXTime
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
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 []
|
138
code/week03/src/Week03/Vesting.hs
Normal file
138
code/week03/src/Week03/Vesting.hs
Normal file
|
@ -0,0 +1,138 @@
|
|||
{-# LANGUAGE DataKinds #-}
|
||||
{-# LANGUAGE DeriveAnyClass #-}
|
||||
{-# LANGUAGE DeriveGeneric #-}
|
||||
{-# LANGUAGE FlexibleContexts #-}
|
||||
{-# LANGUAGE NoImplicitPrelude #-}
|
||||
{-# LANGUAGE OverloadedStrings #-}
|
||||
{-# LANGUAGE ScopedTypeVariables #-}
|
||||
{-# LANGUAGE TemplateHaskell #-}
|
||||
{-# LANGUAGE TypeApplications #-}
|
||||
{-# LANGUAGE TypeFamilies #-}
|
||||
{-# LANGUAGE TypeOperators #-}
|
||||
|
||||
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
|
||||
|
||||
module Week03.Vesting 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
|
||||
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, ToSchema)
|
||||
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
|
||||
import Playground.Types (KnownCurrency (..))
|
||||
import Prelude (IO, Semigroup (..), Show (..), String)
|
||||
import Text.Printf (printf)
|
||||
|
||||
data VestingDatum = VestingDatum
|
||||
{ beneficiary :: PubKeyHash
|
||||
, deadline :: POSIXTime
|
||||
} deriving Show
|
||||
|
||||
PlutusTx.unstableMakeIsData ''VestingDatum
|
||||
|
||||
{-# INLINABLE mkValidator #-}
|
||||
mkValidator :: VestingDatum -> () -> ScriptContext -> Bool
|
||||
mkValidator dat () ctx = traceIfFalse "beneficiary's signature missing" signedByBeneficiary &&
|
||||
traceIfFalse "deadline not reached" deadlineReached
|
||||
where
|
||||
info :: TxInfo
|
||||
info = scriptContextTxInfo ctx
|
||||
|
||||
signedByBeneficiary :: Bool
|
||||
signedByBeneficiary = txSignedBy info $ beneficiary dat
|
||||
|
||||
deadlineReached :: Bool
|
||||
deadlineReached = contains (from $ deadline dat) $ txInfoValidRange info
|
||||
|
||||
data Vesting
|
||||
instance Scripts.ValidatorTypes Vesting where
|
||||
type instance DatumType Vesting = VestingDatum
|
||||
type instance RedeemerType Vesting = ()
|
||||
|
||||
typedValidator :: Scripts.TypedValidator Vesting
|
||||
typedValidator = Scripts.mkTypedValidator @Vesting
|
||||
$$(PlutusTx.compile [|| mkValidator ||])
|
||||
$$(PlutusTx.compile [|| wrap ||])
|
||||
where
|
||||
wrap = Scripts.wrapValidator @VestingDatum @()
|
||||
|
||||
validator :: Validator
|
||||
validator = Scripts.validatorScript typedValidator
|
||||
|
||||
valHash :: Ledger.ValidatorHash
|
||||
valHash = Scripts.validatorHash typedValidator
|
||||
|
||||
scrAddress :: Ledger.Address
|
||||
scrAddress = scriptAddress validator
|
||||
|
||||
data GiveParams = GiveParams
|
||||
{ gpBeneficiary :: !PubKeyHash
|
||||
, gpDeadline :: !POSIXTime
|
||||
, gpAmount :: !Integer
|
||||
} deriving (Generic, ToJSON, FromJSON, ToSchema)
|
||||
|
||||
type VestingSchema =
|
||||
Endpoint "give" GiveParams
|
||||
.\/ Endpoint "grab" ()
|
||||
|
||||
give :: AsContractError e => GiveParams -> Contract w s e ()
|
||||
give gp = do
|
||||
let dat = VestingDatum
|
||||
{ beneficiary = gpBeneficiary gp
|
||||
, deadline = gpDeadline gp
|
||||
}
|
||||
tx = mustPayToTheScript dat $ Ada.lovelaceValueOf $ gpAmount gp
|
||||
ledgerTx <- submitTxConstraints typedValidator 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 <$> ownPubKey
|
||||
utxos <- Map.filter (isSuitable pkh now) <$> utxoAt scrAddress
|
||||
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
|
||||
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 :: PubKeyHash -> POSIXTime -> TxOutTx -> Bool
|
||||
isSuitable pkh 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 -> beneficiary d == pkh && deadline d <= now
|
||||
|
||||
endpoints :: Contract () VestingSchema Text ()
|
||||
endpoints = (give' `select` grab') >> endpoints
|
||||
where
|
||||
give' = endpoint @"give" >>= give
|
||||
grab' = endpoint @"grab" >> grab
|
||||
|
||||
mkSchemaDefinitions ''VestingSchema
|
||||
|
||||
mkKnownCurrencies []
|
Loading…
Reference in a new issue