Contract con_mob_lottery

  

    

      

        

            
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# {"initial_pot":50000,"single_entry":5000}
          

            
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# -> MintOrBurn.com Weekly Lottery <- 
          

            
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import con_mintorburn as mob
          

            
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random.seed()
          

            
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owner = Variable()
          

            
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active = Variable()
          

            
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pot_amount = Variable()
          

            
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entry_amount = Variable()
          

            
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lottery_candidates = Variable()
          

            
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@construct
          

            
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def seed():
          

            
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    owner.set(ctx.caller)
          

            
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    pot_amount.set(0)
          

            
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    entry_amount.set(0)
          

            
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    active.set(False)
          

            
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@export
          

            
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def resetLottery(initial_pot: float, single_entry: float):
          

            
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    assert active.get() == False, 'Need to execute finishLottery() first'
          

            
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    error = 'Only the owner can reset the lottery'
          

            
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    assert owner.get() == ctx.caller, error
          

            
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    pot_amount.set(initial_pot)
          

            
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    entry_amount.set(single_entry)
          

            
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    lottery_candidates.set([])
          

            
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    mob.transfer_from(amount=initial_pot, to=ctx.this, main_account=ctx.caller)
          

            
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    active.set(True)
          

            
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@export
          

            
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def fundLottery(amount: float):
          

            
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    assert active.get() == True, 'Lottery not active'
          

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

            
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    pot_amount.set(pot_amount.get() + amount)
          

            
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@export
          

            
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def joinLottery():
          

            
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    assert active.get() == True, 'Lottery not active'
          

            
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    mob.transfer_from(amount=entry_amount.get(), to=ctx.this, main_account=ctx.caller)
          

            
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    pot_amount.set(pot_amount.get() + entry_amount.get())
          

            
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    candidates = lottery_candidates.get()
          

            
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    candidates.append(ctx.caller)
          

            
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    lottery_candidates.set(candidates)
          

            
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@export
          

            
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def finishLottery():
          

            
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    assert active.get() == True, 'Lottery not active'
          

            
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    error = 'Only the owner can finish the lottery'
          

            
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    assert owner.get() == ctx.caller, error
          

            
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    candidates = lottery_candidates.get()
          

            
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    error = 'Can not finish lottery without players'
          

            
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    assert len(candidates) > 0, error
          

            
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    randomInt = random.randint(0, len(candidates) - 1)
          

            
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    winner = candidates[randomInt]
          

            
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    mob.transfer(amount=pot_amount.get(), to=winner)
          

            
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    pot_amount.set(0)
          

            
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    active.set(False)
          

            
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    return f"{winner}"
          

            
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@export
          

            
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def setOwner(address: str):
          

            
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    error = 'Only the current owner can set a new owner'
          

            
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    assert owner.get() == ctx.caller, error
          

            
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    owner.set(address)
          
      
    
  
  

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