Contract con_test_nebula017
| Creator | ae7d14d6d9b8443f881ba6244727b69b681010e782d4fe482dbfb0b6aca02d5d |
| Creation Hash | eed135a5ad22aaa4e4472dcd78ef8d6b32dfa56952dd04f473db9445b29e82c0 |
| Created On | 984 days ago - 8/25/2021, 8:28:38 PM UTC+0 |
Contract Code
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I = importlib
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balances = Hash(default_value=0)
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approved = Hash(default_value=0)
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metadata = Hash()
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tax_percent = Variable()
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swap_allowed = Variable()
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vault_contract = Variable()
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tax_blacklist = Variable()
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total_supply = Variable()
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SWAP_FACTOR = 0.01
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BURN_ADDRESS = 'NEBULA_BURN_ADDRESS'
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INTERNAL_VAULT = 'internal_neb_vault'
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SWAP_END_DATE = now + datetime.timedelta(days=1)
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OPERATORS = [
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'ae7d14d6d9b8443f881ba6244727b69b681010e782d4fe482dbfb0b6aca02d5d',
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'e787ed5907742fa8d50b3ca2701ab8e03ec749ced806a15cdab800a127d7f863'
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]
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@construct
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def seed():
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balances[ctx.caller] = 0
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metadata['token_name'] = "Test-Nebula"
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metadata['token_symbol'] = "TNEB"
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metadata['operator'] = ctx.caller
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tax_percent.set(1)
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swap_allowed.set(False)
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tax_blacklist.set([])
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vault_contract.set('')
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total_supply.set(0)
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@export
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def change_metadata(key: str, value: Any):
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assert_owner()
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metadata[key] = value
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@export
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def transfer(amount: float, to: str):
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assert amount > 0, 'Cannot send negative balances!'
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assert balances[ctx.caller] >= amount, 'Not enough coins to send!'
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balances[ctx.caller] -= amount
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balances[to] += amount
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if to in tax_blacklist.get():
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pay_tax(amount)
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@export
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def approve(amount: float, to: str):
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assert amount > 0, 'Cannot send negative balances!'
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approve[ctx.caller, to] += amount
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@export
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def transfer_from(amount: float, to: str, main_account: str):
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assert amount > 0, 'Cannot send negative balances!'
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assert balances[main_account, ctx.caller] >= amount, 'Not enough coins approved to send! You have {} and are trying to spend {}'\
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.format(balances[main_account, ctx.caller], amount)
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assert balances[main_account] >= amount, 'Not enough coins to send!'
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approved[main_account, ctx.caller] -= amount
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balances[main_account] -= amount
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balances[to] += amount
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if to in tax_blacklist.get():
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pay_tax(amount)
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# ------ TAX ------
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def pay_tax(amount: float):
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tax_amount = int(amount / 100 * tax_percent.get())
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if tax_amount > 0:
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difference = int(balances[ctx.signer] - tax_amount)
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assert balances[ctx.signer] >= tax_amount, 'Not enough coins to pay for NEB tax. Missing {} NEB'.format((difference * -1) + 1)
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if not vault_contract.get():
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vault = INTERNAL_VAULT
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else:
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vault = vault_contract.get()
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balances[vault] += tax_amount
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balances[ctx.signer] -= tax_amount
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@export
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def set_tax(tax_in_percent: float):
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assert_owner()
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assert (tax_in_percent >= 0 and tax_in_percent <= 100), 'Value must be between 0 and 100'
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tax_percent.set(tax_in_percent)
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@export
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def add_to_tax_blacklist(recipient: str):
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assert_owner()
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assert recipient not in tax_blacklist.get(), 'Recipient already on tax blacklist'
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lst = tax_blacklist.get()
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lst.append(recipient)
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tax_blacklist.set(lst)
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@export
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def remove_from_tax_blacklist(recipient: str):
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assert_owner()
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assert recipient in tax_blacklist.get(), 'Recipient not on tax blacklist'
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lst = tax_blacklist.get()
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lst.remove(recipient)
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tax_blacklist.set(lst)
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# ------ SWAP ------
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@export
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def swap_gold(amount: float):
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assert now < SWAP_END_DATE, 'Swap period ended'
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assert swap_allowed.get() == True, 'Swapping GOLD for NEB currently disabled'
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assert amount > 0, 'Cannot swap negative balances!'
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gold = I.import_module('con_test_gold_contract')
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#gold.approve(amount=amount, to=BURN_ADDRESS)
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gold.transfer_from(amount=amount, to=BURN_ADDRESS, main_account=ctx.caller)
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swap_amount = amount * SWAP_FACTOR
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balances[ctx.caller] += swap_amount
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total_supply.set(total_supply.get() + swap_amount)
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@export
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def enable_swap():
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assert_owner()
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swap_allowed.set(True)
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@export
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def disable_swap():
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assert_owner()
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swap_allowed.set(False)
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# ------ BURNING ------
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@export
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def burn(amount: float):
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assert amount > 0, 'Cannot burn negative amount!'
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assert balances[ctx.caller] >= amount, 'Not enough coins to burn!'
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balances[BURN_ADDRESS] += amount
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balances[ctx.caller] -= amount
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# ------ VAULT ------
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@export
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def set_vault(contract: str):
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assert_owner()
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vault_contract.set(contract)
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@export
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def flush_internal_vault():
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assert_owner()
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assert vault_contract.get(), 'Vault contract not set!'
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balances[vault_contract.get()] += balances[INTERNAL_VAULT]
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balances[INTERNAL_VAULT] = 0
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# ------ SUPPLY ------
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@export
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def circulating_supply():
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return total_supply.get() - balances[BURN_ADDRESS]
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@export
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def total_supply():
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return total_supply.get()
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# ------ INTERNAL ------
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def assert_owner():
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assert ctx.caller in OPERATORS, 'Only executable by operators!'
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Byte Code
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