cicnet/erc20-demurrage-token
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erc20-demurrage-token/python/erc20_demurrage_token/token.py
lash 4ec1ea8b45
rename to decaylevel
2023-02-19 10:41:54 +00:00

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# standard imports
import os
import logging
# external imports
from chainlib.eth.tx import (
TxFactory,
TxFormat,
)
from chainlib.hash import keccak256_string_to_hex
from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractDecoder,
ABIContractType,
abi_decode_single,
)
from chainlib.eth.constant import ZERO_ADDRESS
from chainlib.jsonrpc import JSONRPCRequest
from eth_erc20 import ERC20
from hexathon import (
add_0x,
strip_0x,
)
from dexif import from_fixed
# local imports
from erc20_demurrage_token.data import data_dir
from erc20_demurrage_token.seal import SealedContract
from erc20_demurrage_token.expiry import ExpiryContract
logg = logging.getLogger(__name__)
class DemurrageRedistribution:
def __init__(self, v):
d = ABIContractDecoder()
v = strip_0x(v)
d.typ(ABIContractType.UINT256)
d.typ(ABIContractType.UINT256)
d.typ(ABIContractType.BYTES32)
d.val(v[:64])
d.val(v[64:128])
d.val(v[128:192])
r = d.decode()
self.period = r[0]
self.value = r[1]
self.demurrage = from_fixed(r[2])
def __str__(self):
return 'period {} value {} demurrage {}'.format(self.period, self.value, self.demurrage)
class DemurrageTokenSettings:
def __init__(self):
self.name = None
self.symbol = None
self.decimals = None
self.demurrage_level = None
self.period_minutes = None
self.sink_address = None
def __str__(self):
return 'name {} demurrage level {} period minutes {} sink address {}'.format(
self.name,
self.demurrage_level,
self.period_minutes,
self.sink_address,
)
class DemurrageToken(ERC20, SealedContract, ExpiryContract):
__abi = {}
__bytecode = {}
def constructor(self, sender_address, settings, tx_format=TxFormat.JSONRPC, version=None):
code = self.cargs(settings.name, settings.symbol, settings.decimals, settings.demurrage_level, settings.period_minutes, settings.sink_address, version=version)
tx = self.template(sender_address, None, use_nonce=True)
tx = self.set_code(tx, code)
return self.finalize(tx, tx_format)
@staticmethod
def cargs(name, symbol, decimals, demurrage_level, period_minutes, sink_address, version=None):
code = DemurrageToken.bytecode()
enc = ABIContractEncoder()
enc.string(name)
enc.string(symbol)
enc.uint256(decimals)
enc.uint256(demurrage_level)
enc.uint256(period_minutes)
enc.address(sink_address)
code += enc.get()
return code
@staticmethod
def gas(code=None):
return 6000000
@staticmethod
def abi():
name = 'DemurrageTokenSingleNocap'
if DemurrageToken.__abi.get(name) == None:
f = open(os.path.join(data_dir, name + '.json'), 'r')
DemurrageToken.__abi[name] = json.load(f)
f.close()
return DemurrageToken.__abi[name]
@staticmethod
def bytecode(version=None):
name = 'DemurrageTokenSingleNocap'
if DemurrageToken.__bytecode.get(name) == None:
f = open(os.path.join(data_dir, name + '.bin'), 'r')
DemurrageToken.__bytecode[name] = f.read()
f.close()
return DemurrageToken.__bytecode[name]
def increase_allowance(self, contract_address, sender_address, address, value, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('increaseAllowance')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
enc.address(address)
enc.uint256(value)
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 decrease_allowance(self, contract_address, sender_address, address, value, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('decreaseAllowance')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
enc.address(address)
enc.uint256(value)
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
# backwards compatibility
def add_minter(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
return self.add_writer(contract_address, sender_address, address, tx_format=tx_format)
def add_writer(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('addWriter')
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
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 set_max_supply(self, contract_address, sender_address, cap, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('setMaxSupply')
enc.typ(ABIContractType.UINT256)
enc.uint256(cap)
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
# backwards compatibility
def remove_minter(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
return self.delete_writer(contract_address, sender_address, address, tx_format=tx_format)
def delete_writer(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('deleteWriter')
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
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 mint_to(self, contract_address, sender_address, address, value, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('mintTo')
enc.typ(ABIContractType.ADDRESS)
enc.typ(ABIContractType.UINT256)
enc.address(address)
enc.uint256(value)
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 burn(self, contract_address, sender_address, value, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('burn')
enc.typ(ABIContractType.UINT256)
enc.uint256(value)
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 total_burned(self, contract_address, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('totalBurned')
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def to_base_amount(self, contract_address, value, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('toBaseAmount')
enc.typ(ABIContractType.UINT256)
enc.uint256(value)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def remainder(self, contract_address, parts, whole, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('remainder')
enc.typ(ABIContractType.UINT256)
enc.typ(ABIContractType.UINT256)
enc.uint256(parts)
enc.uint256(whole)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def redistributions(self, contract_address, idx, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('redistributions')
enc.typ(ABIContractType.UINT256)
enc.uint256(idx)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def account_period(self, contract_address, address, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('accountPeriod')
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def to_redistribution(self, contract_address, participants, demurrage_modifier, value, period, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('toRedistribution')
enc.typ(ABIContractType.UINT256)
enc.typ_literal('int128')
enc.typ(ABIContractType.UINT256)
enc.typ(ABIContractType.UINT256)
enc.uint256(participants)
enc.uint256(demurrage_modifier)
enc.uint256(value)
enc.uint256(period)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def to_redistribution_period(self, contract_address, redistribution, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('toRedistributionPeriod')
v = strip_0x(redistribution)
enc.typ_literal('(uint32,uint72,uint64)')
enc.bytes32(v[:64])
enc.bytes32(v[64:128])
enc.bytes32(v[128:192])
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
# def to_redistribution_participants(self, contract_address, redistribution, sender_address=ZERO_ADDRESS, id_generator=None):
# j = JSONRPCRequest(id_generator)
# o = j.template()
# o['method'] = 'eth_call'
# enc = ABIContractEncoder()
# enc.method('toRedistributionParticipants')
# v = strip_0x(redistribution)
# enc.typ_literal('(uint32,uint72,uint104)')
# #enc.typ(ABIContractType.BYTES32)
# enc.bytes32(v[:64])
# enc.bytes32(v[64:128])
# enc.bytes32(v[128:192])
# data = add_0x(enc.get())
# tx = self.template(sender_address, contract_address)
# tx = self.set_code(tx, data)
# o['params'].append(self.normalize(tx))
# o['params'].append('latest')
# o = j.finalize(o)
# return o
#
def to_redistribution_supply(self, contract_address, redistribution, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('toRedistributionSupply')
v = strip_0x(redistribution)
enc.typ_literal('(uint32,uint72,uint64)')
enc.bytes32(v[:64])
enc.bytes32(v[64:128])
enc.bytes32(v[128:192])
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def to_redistribution_demurrage_modifier(self, contract_address, redistribution, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('toRedistributionDemurrageModifier')
v = strip_0x(redistribution)
enc.typ_literal('(uint32,uint72,uint64)')
enc.bytes32(v[:64])
enc.bytes32(v[64:128])
enc.bytes32(v[128:192])
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def base_balance_of(self, contract_address, address, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('baseBalanceOf')
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def set_sink_address(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('setSinkAddress')
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
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 sweep(self, contract_address, sender_address, recipient_address, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('sweep')
enc.typ(ABIContractType.ADDRESS)
enc.address(recipient_address)
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 apply_demurrage(self, contract_address, sender_address, limit=0, tx_format=TxFormat.JSONRPC):
if limit == 0:
return self.transact_noarg('applyDemurrage', contract_address, sender_address)
enc = ABIContractEncoder()
enc.method('applyDemurrageLimited')
enc.typ(ABIContractType.UINT256)
enc.uint256(limit)
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 change_period(self, contract_address, sender_address):
return self.transact_noarg('changePeriod', contract_address, sender_address)
def apply_redistribution_on_account(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
enc = ABIContractEncoder()
enc.method('applyRedistributionOnAccount')
enc.typ(ABIContractType.ADDRESS)
enc.address(address)
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 decay_level(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('decayLevel', contract_address, sender_address=sender_address)
def resolution_factor(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('resolutionFactor', contract_address, sender_address=sender_address)
def actual_period(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('actualPeriod', contract_address, sender_address=sender_address)
def period_start(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('periodStart', contract_address, sender_address=sender_address)
def period_duration(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('periodDuration', contract_address, sender_address=sender_address)
def demurrage_amount(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('demurrageAmount', contract_address, sender_address=sender_address)
def demurrage_timestamp(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('demurrageTimestamp', contract_address, sender_address=sender_address)
def max_supply(self, contract_address, sender_address=ZERO_ADDRESS):
return self.call_noarg('maxSupply', contract_address, sender_address=sender_address)
# def grow_by(self, contract_address, value, period, sender_address=ZERO_ADDRESS, id_generator=None):
# j = JSONRPCRequest(id_generator)
# o = j.template()
# o['method'] = 'eth_call'
# enc = ABIContractEncoder()
# enc.method('growBy')
# enc.typ(ABIContractType.UINT256)
# enc.typ(ABIContractType.UINT256)
# enc.uint256(value)
# enc.uint256(period)
# data = add_0x(enc.get())
# tx = self.template(sender_address, contract_address)
# tx = self.set_code(tx, data)
# o['params'].append(self.normalize(tx))
# o['params'].append('latest')
# o = j.finalize(o)
# return o
#
def decay_by(self, contract_address, value, period, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('decayBy')
enc.typ(ABIContractType.UINT256)
enc.typ(ABIContractType.UINT256)
enc.uint256(value)
enc.uint256(period)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def get_distribution(self, contract_address, supply, demurrage_amount, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('getDistribution')
enc.typ(ABIContractType.UINT256)
enc.typ_literal('int128')
enc.uint256(supply)
enc.uint256(demurrage_amount)
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
def get_distribution_from_redistribution(self, contract_address, redistribution, sender_address=ZERO_ADDRESS, id_generator=None):
j = JSONRPCRequest(id_generator)
o = j.template()
o['method'] = 'eth_call'
enc = ABIContractEncoder()
enc.method('getDistributionFromRedistribution')
v = strip_0x(redistribution)
enc.typ_literal('(uint32,uint72,uint64)')
enc.bytes32(v[:64])
enc.bytes32(v[64:128])
enc.bytes32(v[128:192])
data = add_0x(enc.get())
tx = self.template(sender_address, contract_address)
tx = self.set_code(tx, data)
o['params'].append(self.normalize(tx))
o['params'].append('latest')
o = j.finalize(o)
return o
@classmethod
def parse_actual_period(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_period_start(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_period_duration(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_demurrage_amount(self, v):
# return abi_decode_single(ABIContractType.UINT256, v)
return from_fixed(v)
@classmethod
def parse_remainder(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_to_base_amount(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_redistributions(self, v):
return strip_0x(v)
@classmethod
def parse_account_period(self, v):
return abi_decode_single(ABIContractType.ADDRESS, v)
@classmethod
def parse_to_redistribution_period(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_to_redistribution_item(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_supply_cap(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_grow_by(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_decay_by(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_get_distribution(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_decay_level(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_resolution_factor(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
@classmethod
def parse_total_burned(self, v):
return abi_decode_single(ABIContractType.UINT256, v)
def bytecode(**kwargs):
return DemurrageToken.bytecode(version=kwargs.get('version'))
def create(**kwargs):
return DemurrageToken.cargs(
kwargs['name'],
kwargs['symbol'],
kwargs['decimals'],
kwargs['demurragelevel'],
kwargs['redistributionperiod'],
kwargs['sinkaddress'],
version=kwargs.get('version'))
def args(v):
if v == 'create':
return (['name', 'symbol', 'decimals', 'demurragelevel', 'redistributionperiod', 'sinkaddress'], ['version'],)
elif v == 'default' or v == 'bytecode':
return ([], ['version'],)
raise ValueError('unknown command: ' + v)
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