def _check_payment_op(
operation: Operation, want_asset: str, want_amount: Decimal
) -> bool:
# TODO: Add test cases!
issuer = operation.asset.issuer
code = operation.asset.code
asset = settings.ASSETS.get(code, {})
return (
operation.type_code() == Xdr.const.PAYMENT
and str(operation.destination) == asset.get("DISTRIBUTION_ACCOUNT_ADDRESS")
and str(code) == want_asset
and
# TODO: Handle multiple possible asset issuance accounts
str(issuer) == asset.get("ISSUER_ACCOUNT_ADDRESS")
and Decimal(operation.amount) == want_amount
)
def _cast_operation_and_result(
cls, operation: Operation, op_result: Xdr.types.OperationResult
) -> Tuple[Optional[PaymentOp], Optional[PaymentOpResult]]:
code = operation.type_code()
op_xdr_obj = operation.to_xdr_object()
if code == Xdr.const.PAYMENT:
return (
Payment.from_xdr_object(op_xdr_obj),
op_result.tr.paymentResult,
)
elif code == Xdr.const.PATH_PAYMENT_STRICT_SEND:
return (
PathPaymentStrictSend.from_xdr_object(op_xdr_obj),
op_result.tr.pathPaymentStrictSendResult,
)
elif code == Xdr.const.PATH_PAYMENT_STRICT_RECEIVE:
return (
PathPaymentStrictReceive.from_xdr_object(op_xdr_obj),
op_result.tr.pathPaymentStrictReceiveResult,
)
else:
return None, None
def _check_payment_op(operation: Operation, want_asset: Asset) -> bool:
return (operation.type_code() == Xdr.const.PAYMENT and str(
operation.destination) == want_asset.distribution_account
and str(operation.asset.code) == want_asset.code
and str(operation.asset.issuer) == want_asset.issuer)