contract CutiePluginBase is PluginInterface, Pausable
{
    function isPluginInterface() public pure returns (bool)
    {
        return true;
    }

    // Reference to contract tracking NFT ownership
    CutieCoreInterface public coreContract;

    // Cut owner takes on each auction, measured in basis points (1/100 of a percent).
    // Values 0-10,000 map to 0%-100%
    uint16 public ownerFee;

    // @dev Throws if called by any account other than the owner.
    modifier onlyCore() {
        require(msg.sender == address(coreContract));
        _;
    }

    /// @dev Constructor creates a reference to the NFT ownership contract
    ///  and verifies the owner cut is in the valid range.
    /// @param _coreAddress - address of a deployed contract implementing
    ///  the Nonfungible Interface.
    /// @param _fee - percent cut the owner takes on each auction, must be
    ///  between 0-10,000.
    function setup(address _coreAddress, uint16 _fee) public {
        require(_fee <= 10000);
        require(msg.sender == owner);
        ownerFee = _fee;
        
        CutieCoreInterface candidateContract = CutieCoreInterface(_coreAddress);
        require(candidateContract.isCutieCore());
        coreContract = candidateContract;
    }

    // @dev Set the owner's fee.
    //  @param fee should be between 0-10,000.
    function setFee(uint16 _fee) public
    {
        require(_fee <= 10000);
        require(msg.sender == owner);

        ownerFee = _fee;
    }

    /// @dev Returns true if the claimant owns the token.
    /// @param _claimant - Address claiming to own the token.
    /// @param _cutieId - ID of token whose ownership to verify.
    function _isOwner(address _claimant, uint40 _cutieId) internal view returns (bool) {
        return (coreContract.ownerOf(_cutieId) == _claimant);
    }

    /// @dev Escrows the NFT, assigning ownership to this contract.
    /// Throws if the escrow fails.
    /// @param _owner - Current owner address of token to escrow.
    /// @param _cutieId - ID of token whose approval to verify.
    function _escrow(address _owner, uint40 _cutieId) internal {
        // it will throw if transfer fails
        coreContract.transferFrom(_owner, this, _cutieId);
    }

    /// @dev Transfers an NFT owned by this contract to another address.
    /// Returns true if the transfer succeeds.
    /// @param _receiver - Address to transfer NFT to.
    /// @param _cutieId - ID of token to transfer.
    function _transfer(address _receiver, uint40 _cutieId) internal {
        // it will throw if transfer fails
        coreContract.transfer(_receiver, _cutieId);
    }

    /// @dev Computes owner's cut of a sale.
    /// @param _price - Sale price of NFT.
    function _computeFee(uint128 _price) internal view returns (uint128) {
        // NOTE: We don't use SafeMath (or similar) in this function because
        //  all of our entry functions carefully cap the maximum values for
        //  currency (at 128-bits), and ownerFee <= 10000 (see the require()
        //  statement in the ClockAuction constructor). The result of this
        //  function is always guaranteed to be <= _price.
        return _price * ownerFee / 10000;
    }

    function withdraw() public
    {
        require(
            msg.sender == owner ||
            msg.sender == address(coreContract)
        );
        if (address(this).balance > 0)
        {
            address(coreContract).transfer(address(this).balance);
        }
    }

    function onRemove() public onlyCore
    {
        withdraw();
    }
}
/// @author https://BlockChainArchitect.iocontract Bank is CutiePluginBase
function _escrow(address _owner, uint40 _cutieId) internal {
        // it will throw if transfer fails
        coreContract.transferFrom(_owner, this, _cutieId);
    }
/// @dev Escrows the NFT, assigning ownership to this contract.
/// Throws if the escrow fails.
/// @param _owner - Current owner address of token to escrow.
/// @param _cutieId - ID of token whose approval to verify.