Contract con_uw_master_energy_4

  

    

      

        

            
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import currency

          

            
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import con_uwarriors_lst001  

          

            
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I = importlib

          

            
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S = Hash(default_value=None)

          

            
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metadata = Hash(default_value=0)

          

            
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balances = Hash(default_value=0)

          

            
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wp = ForeignHash(foreign_contract='con_uwarriors_lst001', foreign_name='balances')          

          

            
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@construct          

          

            
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def seed():

          

            
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    metadata['operator'] = ctx.caller

          

            
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    metadata['cost_1'] = 40

          

            
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    metadata['time'] = 24

          

            
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@export

          

            
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def buy_drink_full():

          

            
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  sender = ctx.caller

          

            
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  amount = metadata['cost_1']

          

            
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  operator = metadata['operator']

          

            
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  assert wp[sender] >= amount , 'Not enough coins to send!'

          

            
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  if balances[sender, 'full'] is not None:

          

            
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    assert (now - balances[sender, 'full']).days >= metadata['time'], 'Not can buy more drinks'

          

            
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    con_uwarriors_lst001.transfer_from(amount,  metadata['operator'], sender)

          

            
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    balances[sender, 'full'] = now

          

            
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    return True

          

            
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  else:

          

            
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    con_uwarriors_lst001.transfer_from(amount,  metadata['operator'], sender)

          

            
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    balances[sender, 'full'] = now

          

            
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    return True

          

            
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@export

          

            
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def change_meta(meta:str, value: Any):

          

            
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    assert ctx.caller == metadata['operator'], 'Only operator can set metadata!'

          

            
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    metadata[meta] = value

          

            
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