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WIP: revrite deposit validator in aiken
Missing to compare the outputs hash to the commit hash in the datum.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| use cardano/assets.{PolicyId} | ||
| use aiken/interval.{Finite, Interval, IntervalBound} | ||
| use cardano/transaction.{OutputReference, ValidityRange, Transaction, Output} | ||
|
|
||
| pub type Datum { | ||
| Datum {currencySymbol: ByteArray, deadline: Int, commits: List<OutputReference>} | ||
| } | ||
|
|
||
| pub type Redeemer { | ||
| Claim (PolicyId) | ||
| Recover(Int) | ||
| } | ||
|
|
||
| type DepositError { | ||
| DepositDeadlineSurpassed | ||
| DepositNoUpperBoundDefined | ||
| DepositNoLowerBoundDefined | ||
| DepositDeadlineNotReached | ||
| IncorrectDepositHash | ||
| WrongHeadIdInDepositDatum | ||
| } | ||
|
|
||
| fn toErrorCode(err: DepositError) -> String { | ||
| when err is { | ||
| DepositDeadlineSurpassed -> @"D01" | ||
| DepositNoUpperBoundDefined -> @"D02" | ||
| DepositNoLowerBoundDefined -> @"D03" | ||
| DepositDeadlineNotReached -> @"D04" | ||
| IncorrectDepositHash -> @"D05" | ||
| WrongHeadIdInDepositDatum -> @"D06" | ||
| } | ||
| } | ||
|
|
||
| validator deposit { | ||
| spend(datum: Option<Datum>, redeemer: Redeemer, _utxo: OutputReference, self:Transaction ) -> Bool { | ||
| expect Some(datum) = datum | ||
| when redeemer is { | ||
| Claim(currencySymbol) -> | ||
| traceIfFalse( | ||
| toErrorCode(WrongHeadIdInDepositDatum), | ||
| check_head_id(datum.currencySymbol, currencySymbol) | ||
| ) && | ||
| traceIfFalse( | ||
| toErrorCode(DepositDeadlineSurpassed), | ||
| before_deadline(self.validity_range, datum.deadline) | ||
| ) | ||
| Recover(n) -> { | ||
| traceIfFalse( | ||
| toErrorCode(DepositDeadlineNotReached), | ||
| after_deadline(self.validity_range, datum.deadline) | ||
| ) && recover_outputs(n, datum.commits, self.outputs ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // Helpers | ||
|
|
||
| fn check_head_id(datumCS, redeemerCS){ | ||
| datumCS == redeemerCS | ||
| } | ||
|
|
||
| fn before_deadline(range: ValidityRange, dl){ | ||
| when range.upper_bound.bound_type is { | ||
| Finite(tx_upper_validity) -> tx_upper_validity <= dl | ||
| _ -> | ||
| traceIfFalse( | ||
| toErrorCode(DepositNoUpperBoundDefined), | ||
| False, | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| fn after_deadline(range: ValidityRange, dl){ | ||
| when range.lower_bound.bound_type is { | ||
| Finite(tx_lower_validity) -> tx_lower_validity > dl | ||
| _ -> | ||
| traceIfFalse( | ||
| toErrorCode(DepositNoLowerBoundDefined), | ||
| False, | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| fn recover_outputs(_n: Int, _commits: List<OutputReference>, _outputs: List<Output>){ | ||
| True | ||
| } | ||
|
|
||
| fn traceIfFalse(traceLog: String, predicate: Bool) -> Bool { | ||
| if predicate { | ||
| True | ||
| } else { | ||
| trace traceLog | ||
| False | ||
| } | ||
| } |