Contract con_token_locker

  

    

      

        

            
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metadata = Hash()

          

            
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data = Hash(default_value=0)

          

            
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@construct

          

            
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def seed():

          

            
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    metadata['operator'] = ctx.caller

          

            
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@export

          

            
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def change_metadata(key: str, new_value: str):

          

            
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    assert ctx.caller == metadata['operator'], "only operator can set metadata"

          

            
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    metadata[key] = new_value

          

            
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@export

          

            
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def new_locker(locker_id : str, contract: str, lock_until_year : int, lock_until_month : int, lock_until_day : int, lock_until_hour: int = 0):

          

            
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    assert bool(data[locker_id, 'locker_owner']) == False, "This locker has already been created, please create one with a different name."

          

            
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    assert lock_until_day != None, 'Must provide end day of lock!'

          

            
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    assert lock_until_month != None, 'Must provide end month of lock!'

          

            
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    assert lock_until_year != None, 'Must provide end year of lock!'

          

            
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    assert datetime.datetime(year=lock_until_year, month=lock_until_month, day=lock_until_day, hour=lock_until_hour) >= now, 'Lock end cannot be in the past!'

          

            
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    data[locker_id, 'locker_owner'] = ctx.caller

          

            
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    data[locker_id, 'contract'] = contract

          

            
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    data[locker_id, 'staked_wallets'] = {}

          

            
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    data[locker_id, 'total_locked'] = 0

          

            
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    data[locker_id, 'end_date'] = datetime.datetime(year=lock_until_year, month=lock_until_month, day=lock_until_day, hour=lock_until_hour, minute=0, microsecond=0)

          

            
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@export

          

            
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def stake_token(locker_id: str, tokens_to_lock: float, contract: str):

          

            
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    assert contract == data[locker_id, 'contract'], f"The contract does not match the token locker contract of {data[locker_id, 'contract']}."

          

            
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    assert data[locker_id, 'end_date'] >= now, 'You can not stake in this locker since it has already ended.'

          

            
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    staked_wallets = data[locker_id, 'staked_wallets']

          

            
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    token = importlib.import_module(contract)

          

            
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    token.transfer_from(amount=tokens_to_lock, to=ctx.this, main_account=ctx.caller)

          

            
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    if ctx.caller not in staked_wallets:

          

            
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        staked_wallets.update({ctx.caller: tokens_to_lock})

          

            
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    else:

          

            
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        staked_wallets[ctx.caller] += tokens_to_lock

          

            
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    data[locker_id, 'staked_wallets'] = staked_wallets #adds the staker to the dict for calculating rewards for winners and losers

          

            
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    data[locker_id, 'total_locked'] += tokens_to_lock #adds total CSTL to storage for calculating rewards

          

            
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@export

          

            
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def end_locker(locker_id: str):

          

            
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    assert now >= data[locker_id, 'end_date'], f"This token locker has not ended yet. It will end on {data[locker_id, 'end_date']}."

          

            
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    staked_wallets = data[locker_id, 'staked_wallets']

          

            
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    token = importlib.import_module(data[locker_id, 'contract'])

          

            
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    for key, value in dict(staked_wallets).items():

          

            
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        token.transfer(amount=value, to=key)

          

            
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    data[locker_id, 'locker_owner'] = None

          

            
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    data[locker_id, 'contract'] = None

          

            
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    data[locker_id, 'staked_wallets'] = {}

          

            
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    data[locker_id, 'total_locked'] = 0

          

            
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    data[locker_id, 'end_date'] = None

          

            
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