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

import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import './plsJONES/IMillinerV2.sol';
import './plsDPX/IDpxStakingRewards.sol';

interface IStaker {
  function fee() external view returns (uint256);
}

interface IPendingRewards {
  function pendingDpxRewardsLessFee() external view returns (uint256 _pendingDpx, uint256 _pendingRdpx);

  function pendingJonesLessFee() external view returns (uint256 _pendingJones);
}

contract PendingRewards is IPendingRewards {
  uint256 private constant FEE_DIVISOR = 1e4;

  address private constant JONES_STAKER = 0x668BB973c3e35759269DAc6D5BF118EA9729110E;
  IMillinerV2 private constant MILLINER_V2 = IMillinerV2(0xb94d1959084081c5a11C460012Ab522F5a0FD756);
  uint256 private constant POOL_ID = 1;

  address private constant DPX_STAKER = 0xC046F44ED68014f048ECa0010A642749Ebe34b03;
  IDpxStakingRewards private constant DPX_STAKING_REWARDS =
    IDpxStakingRewards(0xc6D714170fE766691670f12c2b45C1f34405AAb6);

  function pendingDpxRewardsLessFee() external view returns (uint256 _pendingDpx, uint256 _pendingRdpx) {
    uint256 fee = IStaker(DPX_STAKER).fee();
    (uint256 dpxEarned, uint256 rdpxEarned) = DPX_STAKING_REWARDS.earned(DPX_STAKER);

    unchecked {
      _pendingDpx = (dpxEarned * (FEE_DIVISOR - fee)) / FEE_DIVISOR;
      _pendingRdpx = (rdpxEarned * (FEE_DIVISOR - fee)) / FEE_DIVISOR;
    }
  }

  function pendingJonesLessFee() external view returns (uint256 _pendingJones) {
    unchecked {
      _pendingJones =
        (MILLINER_V2.pendingJones(POOL_ID, JONES_STAKER) * (FEE_DIVISOR - IStaker(JONES_STAKER).fee())) /
        FEE_DIVISOR;
    }
  }
}

// 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
pragma solidity 0.8.9;

interface IMillinerV2 {
  function deposit(uint256 _pid, uint256 _amount) external;

  function compound(uint256 _pid) external;

  function withdraw(uint256 _pid, uint256 _amount) external;

  function emergencyWithdraw(uint256 _pid) external;

  function harvest(uint256 _pid) external;

  /** VIEWS */

  function deposited(uint256 _pid, address _user) external view returns (uint256);

  function jonesPerSecond() external view returns (uint256);

  function pendingJones(uint256 _pid, address _user) external view returns (uint256);
}

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

interface IDpxStakingRewards {
  function stake(uint256) external;

  function exit() external;

  function compound() external;

  function withdraw(uint256) external;

  function getReward(uint256) external;

  /** VIEWS */

  function balanceOf(address account) external view returns (uint256);

  function rewardRateDPX() external view returns (uint256);

  function rewardRateRDPX() external view returns (uint256);

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

// 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": {}
}

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[{"inputs":[],"name":"pendingDpxRewardsLessFee","outputs":[{"internalType":"uint256","name":"_pendingDpx","type":"uint256"},{"internalType":"uint256","name":"_pendingRdpx","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingJonesLessFee","outputs":[{"internalType":"uint256","name":"_pendingJones","type":"uint256"}],"stateMutability":"view","type":"function"}]

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