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Merge branch 'solutions' into week05
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commit
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2 changed files with 54 additions and 0 deletions
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@ -15,6 +15,7 @@ library
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, Week04.Homework
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, Week04.Maybe
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, Week04.Monad
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, Week04.Solution
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, Week04.Trace
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, Week04.Writer
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build-depends: aeson
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53
code/week04/src/Week04/Solution.hs
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53
code/week04/src/Week04/Solution.hs
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@ -0,0 +1,53 @@
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveAnyClass #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE TypeOperators #-}
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module Week04.Solution where
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import Data.Aeson (FromJSON, ToJSON)
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import Data.Functor (void)
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import Data.Text (Text, unpack)
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import GHC.Generics (Generic)
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import Ledger
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import Ledger.Ada as Ada
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import Ledger.Constraints as Constraints
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import Plutus.Contract as Contract
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import Plutus.Trace.Emulator as Emulator
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import Wallet.Emulator.Wallet
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data PayParams = PayParams
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{ ppRecipient :: PubKeyHash
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, ppLovelace :: Integer
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} deriving (Show, Generic, FromJSON, ToJSON)
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type PaySchema = BlockchainActions .\/ Endpoint "pay" PayParams
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payContract :: Contract () PaySchema Text ()
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payContract = do
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pp <- endpoint @"pay"
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let tx = mustPayToPubKey (ppRecipient pp) $ lovelaceValueOf $ ppLovelace pp
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handleError (\err -> Contract.logInfo $ "caught error: " ++ unpack err) $ void $ submitTx tx
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payContract
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payTrace :: Integer -> Integer -> EmulatorTrace ()
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payTrace x y = do
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h <- activateContractWallet (Wallet 1) payContract
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callEndpoint @"pay" h $ PayParams
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{ ppRecipient = pubKeyHash $ walletPubKey $ Wallet 2
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, ppLovelace = x
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}
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void $ Emulator.waitNSlots 1
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callEndpoint @"pay" h $ PayParams
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{ ppRecipient = pubKeyHash $ walletPubKey $ Wallet 2
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, ppLovelace = y
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}
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void $ Emulator.waitNSlots 1
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payTest1 :: IO ()
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payTest1 = runEmulatorTraceIO $ payTrace 1000000 2000000
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payTest2 :: IO ()
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payTest2 = runEmulatorTraceIO $ payTrace 1000000000 2000000
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