{-# OPTIONS --safe #-}

module Test.Examples.DEx.OffChain.Update where

open import Ledger.Prelude
open import Ledger.Conway.Specification.Transaction

open import Test.Examples.DEx.Datum
open import Test.Examples.DEx.Validator
open import Test.Examples.DEx.OffChain.Lib
open import Test.Prelude DExData
open import Test.SymbolicData DExData
open import Test.LedgerImplementation SData SData
open import Test.AbstractImplementation valContext
open import Test.Lib valContext

open import Ledger.Conway.Specification.Utxo SVTransactionStructure SVAbstractFunctions

open TransactionStructure SVTransactionStructure
open Implementation

import Data.Rational.Base as Q



makeUpdateTxOut : Label → (scriptIx w : ℕ) → Value → Q.ℚ → TxOut → List (ℕ × TxOut)
makeUpdateTxOut (Always q o) ix w v r (fst , txValue , snd) =
  (ix , (fst , v ,  just (inj₁ (inj₁ (inj₁ (Always r o)))) , nothing)) ∷ [] 

makeUpdateTx : (id : ℕ) → UTxOState → PlutusScript → (w : ℕ) → Value → Q.ℚ → Maybe Tx
makeUpdateTx id state script@(sh , _) w v r =
  let
    wutxo = getWalletUTxO w (UTxOState.utxo state)
  in
    maybe (λ { (scIn , (fst , txValue , snd)) → maybe (λ label →
    just (
          record { body = record defaultTxBody
                         { txIns = Ledger.Prelude.fromList ((scIn ∷ []) ++ (map proj₁ wutxo))
                         ; txOuts = fromListIx (makeFeeSwapTxOut wutxo txValue v ++ makeUpdateTxOut label (proj₂ scIn) w v r (fst , txValue , snd) )
                         ; txId = id
                         ; collateralInputs = Ledger.Prelude.fromList (map proj₁ wutxo)
                         ; reqSignerHashes = Ledger.Prelude.fromList (w ∷ []) 
                         } ;
                wits = record { vkSigs = fromListᵐ ((w , (_+_ {{addNat}} (getTxId wutxo) w)) ∷ []) ;
                                scripts = Ledger.Prelude.fromList ((inj₂ script) ∷ []) ;
                                txdats = ∅ ; 
                                txrdmrs = fromListᵐ (((Spend , (proj₂ scIn)) ,
                                                      inj₁ (inj₂ (Input.Update v r)) , 
                                                      ((getTxId wutxo) , w)) ∷ []) } ;
                txsize =  ;
                isValid = true ;
                txAD = nothing }
                ))
            nothing
            (getLabel (fst , txValue , snd))})
          nothing
          (getScriptUTxO sh (UTxOState.utxo state))