from vyper.interfaces import ERC20

contract Compound():
    def redeem(quantity: uint256) -> uint256: modifying
    def mint(quantity: uint256) -> uint256: modifying
    def approve(target: address, quantity: uint256) -> bool: modifying
    def balanceOf(target: address) -> uint256: constant
    def transfer(to: address, tokens: uint256) -> bool: modifying

owner: address
cusdc_token: Compound
usdc_token: ERC20


@public
def __init__():
    self.owner = msg.sender
    self.cusdc_token = Compound(0x39AA39c021dfbaE8faC545936693aC917d5E7563)
    self.usdc_token = ERC20(0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48)

    self.usdc_token.approve(self.cusdc_token, 99998075535048195174647562)

@public
def kill():
    if msg.sender == self.owner:
        selfdestruct(self.owner)

@public
def compound(quantity: uint256, trans_cost: uint256):
    assert self.usdc_token.transferFrom(msg.sender, self, quantity)
    assert self.cusdc_token.mint(quantity) == 0