Contract 0xf176146200a7dcb14319e7eedb59adc1227a333f

// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';

interface IOwnable {
  function transferOwnership(address newOwner) external;
}

interface IStaker is IOwnable {
  function exit() external;
}

interface IDpxStakingRewards {
  function balanceOf(address account) external view returns (uint256);

  function earned(address account) external view returns (uint256 DPXtokensEarned, uint256 RDPXtokensEarned);
}

interface IPlutusChef {
  function updateShares() external;
}

interface IRewardsDistro is IOwnable {
  function retrieve(IERC20 token) external;
}

contract ExitHelper is Ownable {
  IStaker private constant DPX_STAKER = IStaker(0xC046F44ED68014f048ECa0010A642749Ebe34b03);
  IDpxStakingRewards private constant DPX_STAKING_REWARDS =
    IDpxStakingRewards(0xc6D714170fE766691670f12c2b45C1f34405AAb6);

  IPlutusChef private constant PLUTUSCHEF = IPlutusChef(0x20DF4953BA19c74B2A46B6873803F28Bf640c1B5);
  IRewardsDistro private constant RWDISTRO = IRewardsDistro(0x38e517AB9edF86e8089633041ECb2E5Db00715aD);

  IERC20 private constant DPX = IERC20(0x6C2C06790b3E3E3c38e12Ee22F8183b37a13EE55);
  IERC20 private constant RDPX = IERC20(0x32Eb7902D4134bf98A28b963D26de779AF92A212);

  function safeExit() external onlyOwner {
    uint256 _depositedDPX = DPX_STAKING_REWARDS.balanceOf(address(DPX_STAKER));

    (uint256 _DPXtokensEarned, uint256 _RDPXtokensEarned) = DPX_STAKING_REWARDS.earned(address(DPX_STAKER));

    DPX.transfer(address(DPX_STAKING_REWARDS), _depositedDPX + _DPXtokensEarned);
    RDPX.transfer(address(DPX_STAKING_REWARDS), _RDPXtokensEarned);

    DPX_STAKER.exit();

    _snapshotAndPullFromRewardsDistro();
  }

  function getAmountToTransfer() external view returns (uint256 _dpx, uint256 _rdpx) {
    uint256 _depositedDPX = DPX_STAKING_REWARDS.balanceOf(address(DPX_STAKER));

    (uint256 _DPXtokensEarned, uint256 _RDPXtokensEarned) = DPX_STAKING_REWARDS.earned(address(DPX_STAKER));

    uint256 dpxBuffer = 3e18;
    uint256 rdpxBuffer = 10e18;

    _dpx = _depositedDPX + _DPXtokensEarned + dpxBuffer;
    _rdpx = _RDPXtokensEarned + rdpxBuffer;
  }

  function safeExitWithoutPull() external onlyOwner {
    uint256 _depositedDPX = DPX_STAKING_REWARDS.balanceOf(address(DPX_STAKER));

    (uint256 _DPXtokensEarned, uint256 _RDPXtokensEarned) = DPX_STAKING_REWARDS.earned(address(DPX_STAKER));

    // uint256 dpxDust = 1 ether;
    // uint256 rdpxDust = 2 ether;

    DPX.transfer(address(DPX_STAKING_REWARDS), _depositedDPX + _DPXtokensEarned);
    RDPX.transfer(address(DPX_STAKING_REWARDS), _RDPXtokensEarned);

    DPX_STAKER.exit();
  }

  function retrieve(IERC20 token) external onlyOwner {
    token.transfer(owner(), token.balanceOf(address(this)));
  }

  function _snapshotAndPullFromRewardsDistro() internal {
    PLUTUSCHEF.updateShares();
    RWDISTRO.retrieve(DPX);
    RWDISTRO.retrieve(RDPX);
  }

  function snapshotAndPullFromRewardsDistro() external onlyOwner {
    RWDISTRO.retrieve(DPX);
    RWDISTRO.retrieve(RDPX);
  }

  function approve(
    IERC20 _token,
    address _address,
    uint256 _amount
  ) external onlyOwner {
    _token.approve(_address, _amount);
  }

  /// @dev transfer ownership of dpxStaker from this contract to deployer
  function setOwner() external onlyOwner {
    DPX_STAKER.transferOwnership(owner());
    RWDISTRO.transferOwnership(owner());
  }

  function execute(
    address _to,
    uint256 _value,
    bytes calldata _data
  ) external onlyOwner returns (bool, bytes memory) {
    (bool success, bytes memory result) = _to.call{ value: _value }(_data);
    return (success, result);
  }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"address","name":"_address","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"execute","outputs":[{"internalType":"bool","name":"","type":"bool"},{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getAmountToTransfer","outputs":[{"internalType":"uint256","name":"_dpx","type":"uint256"},{"internalType":"uint256","name":"_rdpx","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"retrieve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"safeExit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"safeExitWithoutPull","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"setOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"snapshotAndPullFromRewardsDistro","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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