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{
"name": "Plutus Starter Project",
"image": "plutus-devcontainer:latest",
"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=/root/.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"
],
}

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dist-newstyle/

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index-state: 2021-02-24T00:00:00Z
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-core
plutus-contract
plutus-ledger
plutus-ledger-api
plutus-tx
plutus-tx-plugin
prettyprinter-configurable
tag: 49ebc9e874212c9e81ae82305eddd7518970dc0a
-- 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.
package eventful-sql-common
ghc-options: -XDerivingStrategies -XStandaloneDeriving -XUndecidableInstances -XDataKinds -XFlexibleInstances
allow-newer:
-- Has a commit to allow newer aeson, not on Hackage yet
monoidal-containers:aeson
-- 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
constraints:
-- aws-lambda-haskell-runtime-wai doesn't compile with newer versions
aws-lambda-haskell-runtime <= 3.0.3
-- 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: f73079303f663e028288f9f4a9e08bcca39a923e
-- Needs a fix (https://github.com/wenkokke/unlit/pull/11) and a Hackage release
source-repository-package
type: git
location: https://github.com/michaelpj/unlit.git
tag: 9ca1112093c5ffd356fc99c7dafa080e686dd748
source-repository-package
type: git
location: https://github.com/input-output-hk/cardano-base
tag: 4251c0bb6e4f443f00231d28f5f70d42876da055
subdir:
binary
binary/test
slotting
cardano-crypto-class
cardano-crypto-praos
source-repository-package
type: git
location: https://github.com/input-output-hk/cardano-prelude
tag: ee4e7b547a991876e6b05ba542f4e62909f4a571
subdir:
cardano-prelude
cardano-prelude-test
source-repository-package
type: git
location: https://github.com/input-output-hk/ouroboros-network
tag: 6cb9052bde39472a0555d19ade8a42da63d3e904
subdir:
typed-protocols
typed-protocols-examples
ouroboros-network
ouroboros-network-testing
ouroboros-network-framework
io-sim
io-sim-classes
network-mux
Win32-network
source-repository-package
type: git
location: https://github.com/input-output-hk/iohk-monitoring-framework
tag: a89c38ed5825ba17ca79fddb85651007753d699d
subdir:
iohk-monitoring
tracer-transformers
contra-tracer
plugins/backend-ekg
source-repository-package
type: git
location: https://github.com/input-output-hk/cardano-ledger-specs
tag: 097890495cbb0e8b62106bcd090a5721c3f4b36f
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-ma/impl
source-repository-package
type: git
location: https://github.com/input-output-hk/goblins
tag: cde90a2b27f79187ca8310b6549331e59595e7ba

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Cabal-Version: 2.4
Name: english-auction
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: EnglishAuction
build-depends: aeson
, base ^>=4.14.1.0
, playground-common
, plutus-contract
, plutus-ledger
, 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

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cradle:
cabal:
- path: "./src"
component: "lib:english-auction"

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code/english-auction/src/EnglishAuction.hs Normal file
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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
module EnglishAuction
( Auction (..)
, StartParams (..)
, AuctionSchema
, start
, endpoints
, schemas
, ensureKnownCurrencies
, printJson
, printSchemas
, registeredKnownCurrencies
, stage
) where
import Control.Monad hiding (fmap)
import Data.Aeson (ToJSON, FromJSON)
import Data.List.NonEmpty (NonEmpty (..))
import Data.Text (Text)
import GHC.Generics (Generic)
import Plutus.Contract hiding (when)
import qualified PlutusTx as PlutusTx
import PlutusTx.Prelude hiding (unless)
import Ledger hiding (singleton)
import Ledger.Constraints as Constraints
import qualified Ledger.Scripts as Scripts
import qualified Ledger.Typed.Scripts as Scripts
import Ledger.Value as Value
import Playground.Contract (ensureKnownCurrencies, printSchemas, stage, printJson)
import Playground.TH (mkKnownCurrencies, mkSchemaDefinitions)
import Playground.Types (KnownCurrency (..))
import Schema (ToSchema)
import Text.Printf (printf)
data Auction = Auction
{ aSeller :: !PubKeyHash
, aDeadline :: !Slot
, aMinBid :: !Integer
} deriving (Show, Generic, ToJSON, FromJSON, ToSchema)
PlutusTx.unstableMakeIsData ''Auction
PlutusTx.makeLift ''Auction
data Bid = MkBid !PubKeyHash !Integer
deriving Show
PlutusTx.unstableMakeIsData ''Bid
PlutusTx.makeLift ''Bid
data AuctionAction = Start Auction | Bid Bid | Success | Failure
deriving Show
PlutusTx.unstableMakeIsData ''AuctionAction
PlutusTx.makeLift ''AuctionAction
data AuctionDatum = AuctionDatum
{ adAuction :: !Auction
, adHighestBid :: !(Maybe Bid)
} deriving Show
PlutusTx.unstableMakeIsData ''AuctionDatum
PlutusTx.makeLift ''AuctionDatum
data Auctioning
instance Scripts.ScriptType Auctioning where
type instance RedeemerType Auctioning = AuctionAction
type instance DatumType Auctioning = AuctionDatum
{-# INLINABLE mkAuctionValidator #-}
mkAuctionValidator :: AuctionDatum -> AuctionAction -> ValidatorCtx -> Bool
mkAuctionValidator _ _ _ = True
auctionInstance :: Scripts.ScriptInstance Auctioning
auctionInstance = Scripts.validator @Auctioning
$$(PlutusTx.compile [|| mkAuctionValidator ||])
$$(PlutusTx.compile [|| wrap ||])
where
wrap = Scripts.wrapValidator @AuctionDatum @AuctionAction
auctionValidator :: Validator
auctionValidator = Scripts.validatorScript auctionInstance
auctionHash :: Ledger.ValidatorHash
auctionHash = Scripts.validatorHash auctionValidator
auctionAddress :: Ledger.Address
auctionAddress = ScriptAddress auctionHash
data StartParams = StartParams
{ spDeadline :: !Slot
, spMinBid :: !Integer
, spCurrency :: !CurrencySymbol
, spToken :: !TokenName
} deriving (Generic, ToJSON, FromJSON, ToSchema)
type AuctionSchema =
BlockchainActions
.\/ Endpoint "start" StartParams
start :: HasBlockchainActions s => StartParams -> Contract w s Text ()
start StartParams{..} = do
pkh <- pubKeyHash <$> ownPubKey
let a = Auction
{ aSeller = pkh
, aDeadline = spDeadline
, aMinBid = spMinBid
}
d = AuctionDatum
{ adAuction = a
, adHighestBid = Nothing
}
v = Value.singleton spCurrency spToken 1
tx = mustPayToTheScript d v
ledgerTx <- submitTxConstraints auctionInstance tx
void $ awaitTxConfirmed $ txId ledgerTx
logInfo @String $ printf "started auction %s for token %s" (show a) (show v)
endpoints :: Contract () AuctionSchema Text ()
endpoints = start' >> endpoints
where
start' = endpoint @"start" >>= start
mkSchemaDefinitions ''AuctionSchema
myToken :: KnownCurrency
myToken = KnownCurrency (ValidatorHash "ffff") "Token" (TokenName "T" :| [])
mkKnownCurrencies ['myToken]