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erc20-demurrage-token-archive/python/erc20_demurrage_token/expiry.py

37 lines
1.0 KiB
Python

# external imports
from chainlib.eth.tx import (
TxFactory,
TxFormat,
)
from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractType,
abi_decode_single,
)
from chainlib.eth.constant import ZERO_ADDRESS
class ExpiryContract(TxFactory):
def set_expire_period(self, contract_address, sender_address, expire_timestamp, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('setExpirePeriod')
enc.typ(ABIContractType.UINT256)
enc.uint256(expire_timestamp)
data = enc.get()
tx = self.template(sender_address, contract_address, use_nonce=True)
tx = self.set_code(tx, data)
tx = self.finalize(tx, tx_format)
return tx
def expires(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('expires', contract_address, sender_address=sender_address)
@classmethod
def parse_expires(self, v):
return abi_decode_single(ABIContractType.UINT256, v)