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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.25;

import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
import { Math } from "@openzeppelin/contracts/utils/math/Math.sol";

import { IDripVault } from "src/interfaces/IDripVault.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { IStreamingPool } from "src/interfaces/IStreamingPool.sol";
import { IInterestManager } from "src/interfaces/IInterestManager.sol";
import { TransferHelper } from
  "@uniswap/v3-periphery/contracts/libraries/TransferHelper.sol";
import { ISwapRouter } from "@uniswap/v3-periphery/contracts/interfaces/ISwapRouter.sol";
import { IWETH } from "src/interfaces/IWETH.sol";
import { IPirexEth } from "src/vendor/dinero/IPirexEth.sol";
import { IApxETH } from "src/vendor/dinero/IApxETH.sol";

import { ReentrancyGuard } from "@openzeppelin/contracts/utils/ReentrancyGuard.sol";

interface IChainlinkOracle {
  function latestRoundData()
    external
    view
    returns (
      uint80 roundId,
      int256 answer,
      uint256 startedAt,
      uint256 updatedAt,
      uint80 answeredInRound
    );
}

/**
 * @title InterestManager
 * @notice It manages the rewards distribution to the megapools based on people votes with
 * their HCT.
 * @custom:export abi
 */
contract InterestManager is IInterestManager, Ownable, ReentrancyGuard {
  uint32 private constant MINIMUM_EPOCH_DURATION = 7 days;
  uint32 private constant MAXIMUM_EPOCH_DURATION = 30 days;

  uint256 public constant PRECISION = 1e18;
  uint256 public constant MINIMUM_SWAP_DAI = 100e18;
  uint256 public constant BPS = 10_000;
  uint24 private constant DAI_POOL_FEE = 500;

  mapping(address => uint128) internal pendingRewards;
  mapping(uint64 => Epoch) public epochs;

  address public gaugeController;
  uint64 public epochId;
  uint32 public override epochDuration;
  IStreamingPool public streamingPool;
  uint256 private apxBalanceTracker;
  uint256 public allowedSlippage;

  address public immutable SWAP_ROUTER;
  IDripVault public immutable DRIP_VAULT_ETH;
  IDripVault public immutable DRIP_VAULT_DAI;
  IChainlinkOracle public immutable CHAINLINK_DAI_ETH;

  IERC20 public immutable DAI;
  IWETH public immutable WETH;
  IERC20 public immutable APX_ETH;
  IPirexEth public immutable PIREX_ETH;

  constructor(
    address _owner,
    address _gaugeController,
    address _dripVaultETH,
    address _dripVaultDAI,
    address _swapRouter,
    address _chainlinkDaiETH,
    address _weth
  ) Ownable(_owner) {
    gaugeController = _gaugeController;
    DRIP_VAULT_ETH = IDripVault(_dripVaultETH);
    DRIP_VAULT_DAI = IDripVault(_dripVaultDAI);
    SWAP_ROUTER = _swapRouter;
    WETH = IWETH(_weth);
    DAI = IERC20(IDripVault(_dripVaultDAI).getInputToken());
    APX_ETH = IERC20(IDripVault(_dripVaultETH).getOutputToken());
    PIREX_ETH = IPirexEth(IApxETH(address(APX_ETH)).pirexEth());
    CHAINLINK_DAI_ETH = IChainlinkOracle(_chainlinkDaiETH);

    allowedSlippage = 500; // 5%
    epochDuration = MINIMUM_EPOCH_DURATION;

    TransferHelper.safeApprove(address(DAI), SWAP_ROUTER, type(uint256).max);
  }

  function applyGauges(address[] memory _megapools, uint128[] memory _weights)
    external
    override
  {
    uint256 megapoolsLength = _megapools.length;

    if (msg.sender != gaugeController) revert NotGaugeController();
    if (megapoolsLength != _weights.length) revert InvalidInputLength();

    _endEpoch();
    Epoch storage epoch = epochs[epochId];

    uint128 weight;
    uint128 totalWeight;
    address megapool;

    for (uint256 i = 0; i < megapoolsLength; ++i) {
      megapool = _megapools[i];
      weight = _weights[i];

      epoch.megapools.push(megapool);
      epoch.megapoolToWeight[megapool] += weight;
      totalWeight += weight;
    }

    epoch.totalWeight = totalWeight;
    epoch.endOfEpoch = uint32(block.timestamp + epochDuration);

    emit EpochInitialized(epochId, _megapools, _weights, totalWeight);
  }

  function _endEpoch() internal {
    uint64 currentEpoch = epochId;
    Epoch storage epoch = epochs[currentEpoch];

    if (epoch.endOfEpoch > block.timestamp) revert EpochNotFinished();

    if (epoch.totalWeight != 0) {
      epoch.totalRewards += uint128(_claimFromServices());

      for (uint256 i = 0; i < epoch.megapools.length; ++i) {
        _assignRewardToMegapool(epoch, epoch.megapools[i]);
      }

      emit EpochEnded(currentEpoch);
    }
    epochId = currentEpoch + 1;
  }

  function claim() external override nonReentrant returns (uint256 rewards_) {
    Epoch storage epoch = epochs[epochId];

    if (epoch.totalWeight != 0) {
      epoch.totalRewards += uint128(_claimFromServices());
    }

    _assignRewardToMegapool(epoch, msg.sender);

    rewards_ = pendingRewards[msg.sender];

    if (rewards_ == 0) return 0;

    pendingRewards[msg.sender] = 0;
    APX_ETH.transfer(msg.sender, rewards_);

    apxBalanceTracker -= rewards_;

    emit RewardClaimed(msg.sender, rewards_);

    return rewards_;
  }

  function _claimFromServices() internal returns (uint256 rewards_) {
    IStreamingPool cachedStreamingPool = streamingPool;

    if (address(cachedStreamingPool) != address(0)) {
      cachedStreamingPool.claim();
    }

    DRIP_VAULT_ETH.claim();
    _claimDaiAndConvertToApxETH();

    uint256 newApxBalance = APX_ETH.balanceOf(address(this));
    rewards_ = newApxBalance - apxBalanceTracker;
    apxBalanceTracker = newApxBalance;

    return rewards_;
  }

  function _claimDaiAndConvertToApxETH() internal returns (uint256 apxOut_) {
    DRIP_VAULT_DAI.claim();
    uint256 daiBalance = DAI.balanceOf(address(this));
    if (daiBalance < MINIMUM_SWAP_DAI) return 0;

    ( /*uint80 roundId*/
      ,
      int256 answer,
      /*uint256 startedAt*/
      ,
      /*uint256 updatedAt*/
      ,
      /*uint80 answeredInRound*/
    ) = CHAINLINK_DAI_ETH.latestRoundData();

    uint256 minimumOut = daiBalance * uint256(answer) / PRECISION;
    minimumOut -= minimumOut * allowedSlippage / BPS;

    ISwapRouter.ExactInputSingleParams memory params = ISwapRouter.ExactInputSingleParams({
      tokenIn: address(DAI),
      tokenOut: address(WETH),
      fee: DAI_POOL_FEE,
      recipient: address(this),
      deadline: block.timestamp,
      amountIn: daiBalance,
      amountOutMinimum: minimumOut,
      sqrtPriceLimitX96: 0
    });

    uint256 amountOut = ISwapRouter(SWAP_ROUTER).exactInputSingle(params);

    WETH.withdraw(amountOut);
    (apxOut_,) = PIREX_ETH.deposit{ value: amountOut }(address(this), true);

    return apxOut_;
  }

  function _assignRewardToMegapool(Epoch storage _epoch, address _megapool) internal {
    (uint128 totalRewards, uint128 addedRewards) = _getRewards(_epoch, _megapool);
    if (addedRewards == 0) return;

    _epoch.megapoolClaims[_megapool] += addedRewards;
    pendingRewards[_megapool] = totalRewards;

    emit RewardAssigned(_megapool, addedRewards, totalRewards);
  }

  function setAllowedSlippage(uint256 _allowedSlippage) external onlyOwner {
    allowedSlippage = _allowedSlippage;
  }

  function setGaugeController(address _gaugeController) external onlyOwner {
    gaugeController = _gaugeController;
    emit GaugeControllerSet(_gaugeController);
  }

  function setEpochDuration(uint32 _epochDuration) external onlyOwner {
    if (
      _epochDuration < MINIMUM_EPOCH_DURATION || _epochDuration > MAXIMUM_EPOCH_DURATION
    ) {
      revert InvalidEpochDuration();
    }

    epochDuration = _epochDuration;
    emit EpochDurationSet(_epochDuration);
  }

  function setStreamingPool(address _streamingPool) external onlyOwner {
    streamingPool = IStreamingPool(_streamingPool);
    emit StreamingPoolSet(_streamingPool);
  }

  function getRewards(address _megapool)
    external
    view
    override
    returns (uint256 totalRewards_)
  {
    (totalRewards_,) = _getRewards(epochs[epochId], _megapool);
    return totalRewards_;
  }

  function _getRewards(Epoch storage epoch, address _megapool)
    internal
    view
    returns (uint128 totalRewards_, uint128 addedRewards_)
  {
    totalRewards_ = pendingRewards[_megapool];

    uint128 totalServiceRewards = epoch.totalRewards;
    uint256 weight = epoch.megapoolToWeight[_megapool];
    uint256 totalClaimedByPool = epoch.megapoolClaims[_megapool];
    if (weight == 0 || epoch.totalWeight == 0) return (totalRewards_, 0);

    uint256 weightRatioOfPool = Math.mulDiv(weight, PRECISION, epoch.totalWeight);
    uint256 totalRewardsToPool =
      uint128(Math.mulDiv(totalServiceRewards, weightRatioOfPool, PRECISION));

    addedRewards_ = uint128(totalRewardsToPool - totalClaimedByPool);
    totalRewards_ += addedRewards_;
    return (totalRewards_, addedRewards_);
  }

  function getEpochData(uint64 _epochId)
    external
    view
    returns (
      uint128 totalRewards_,
      uint128 totalWeight_,
      uint32 endOfEpoch_,
      address[] memory megapools_
    )
  {
    Epoch storage epoch = epochs[_epochId];

    totalRewards_ = epoch.totalRewards;
    totalWeight_ = epoch.totalWeight;
    megapools_ = epoch.megapools;
    endOfEpoch_ = epoch.endOfEpoch;

    return (totalRewards_, totalWeight_, endOfEpoch_, megapools_);
  }

  function getMegapoolWeight(uint64 _epochId, address _megapool)
    external
    view
    returns (uint128 weight_)
  {
    return epochs[_epochId].megapoolToWeight[_megapool];
  }

  receive() external payable { }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../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.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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 v5.0.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Muldiv operation overflow.
     */
    error MathOverflowedMulDiv();

    enum Rounding {
        Floor, // Toward negative infinity
        Ceil, // Toward positive infinity
        Trunc, // Toward zero
        Expand // Away from zero
    }

    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            return a / b;
        }

        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
     * denominator == 0.
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
     * Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0 = x * y; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            if (denominator <= prod1) {
                revert MathOverflowedMulDiv();
            }

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator.
            // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.

            uint256 twos = denominator & (0 - denominator);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
            // works in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
     * towards zero.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

    /**
     * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
     */
    function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
        return uint8(rounding) % 2 == 1;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

interface IDripVault {
  error FailedToSendETH();
  error InvalidAmount();
  error NotObeliskRegistry();
  error NativeNotAccepted();
  error ZeroAddress();

  event ObeliskRegistryUpdated(address indexed obeliskRegistry);
  event InterestRateReceiverUpdated(address indexed interestRateReceiver);

  /**
   * @notice Deposits ETH or a specified amount of ERC20 token into the vault.
   * @dev ERC20 has to be transferred before calling this function
   */
  function deposit(uint256 _amount) external payable returns (uint256 depositAmount_);

  /**
   * @notice Withdraws ETH or a specified amount of ERC20 token from the vault.
   * @param _to The address to withdraw the funds to.
   * @param _amount The amount of ETH or ERC20 token to withdraw. Use 0 for ETH.
   */
  function withdraw(address _to, uint256 _amount)
    external
    returns (uint256 withdrawAmount_);

  /**
   * @notice Claims any accrued interest in the vault.
   * @return The amount of interest claimed.
   */
  function claim() external returns (uint256);

  /**
   * @notice Gets the total deposit amount in the vault.
   * @return The total deposit amount.
   */
  function getTotalDeposit() external view returns (uint256);

  /**
   * @notice Gets the input token of the vault.
   * @return The input token address.
   */
  function getInputToken() external view returns (address);

  /**
   * @notice Gets the output token of the vault.
   * @return The output token address.
   */
  function getOutputToken() external view returns (address);

  /**
   * @notice Gets the preview deposit amount of the vault.
   * @return The preview deposit amount.
   */
  function previewDeposit(uint256 _amount) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

interface IStreamingPool {
  error NotInterestManager();
  error InvalidAmount();
  error EpochNotFinished();

  event Claimed(uint256 amount);
  event ApyBoosted(uint256 amount, uint256 until);

  function claim() external returns (uint256 amount_);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

interface IInterestManager {
  error InvalidInputLength();
  error NotGaugeController();
  error EpochNotFinished();
  error InvalidEpochDuration();

  event EpochInitialized(
    uint64 indexed epochId, address[] megapools, uint128[] weights, uint128 totalWeight
  );
  event GaugeControllerSet(address indexed gaugeController);
  event EpochEnded(uint64 indexed epochId);
  event RewardAssigned(
    address indexed megapool, uint256 addedRewards, uint256 totalRewards
  );
  event RewardClaimed(address indexed megapool, uint256 rewards);
  event EpochDurationSet(uint32 epochDuration);
  event StreamingPoolSet(address indexed streamingPool);

  struct Epoch {
    uint32 endOfEpoch;
    uint128 totalRewards;
    uint128 totalWeight;
    address[] megapools;
    mapping(address => uint128) megapoolToWeight;
    mapping(address => uint128) megapoolClaims;
  }

  function epochDuration() external view returns (uint32);

  /**
   * @notice Applies gauges to the interest manager
   * @param _megapools The megapools to apply the gauges to
   * @param _weights The weights of the megapools
   */
  function applyGauges(address[] memory _megapools, uint128[] memory _weights) external;

  /**
   * @notice Claims rewards for the caller
   * @return rewards_ The amount of rewards claimed
   */
  function claim() external returns (uint256 rewards_);

  /**
   * @notice Gets the rewards for a megapool
   * @param _megapool The megapool to get the rewards for
   * @return rewards_ The amount of rewards for the megapool
   */
  function getRewards(address _megapool) external view returns (uint256);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.6.0;

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

library TransferHelper {
    /// @notice Transfers tokens from the targeted address to the given destination
    /// @notice Errors with 'STF' if transfer fails
    /// @param token The contract address of the token to be transferred
    /// @param from The originating address from which the tokens will be transferred
    /// @param to The destination address of the transfer
    /// @param value The amount to be transferred
    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 value
    ) internal {
        (bool success, bytes memory data) =
            token.call(abi.encodeWithSelector(IERC20.transferFrom.selector, from, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'STF');
    }

    /// @notice Transfers tokens from msg.sender to a recipient
    /// @dev Errors with ST if transfer fails
    /// @param token The contract address of the token which will be transferred
    /// @param to The recipient of the transfer
    /// @param value The value of the transfer
    function safeTransfer(
        address token,
        address to,
        uint256 value
    ) internal {
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(IERC20.transfer.selector, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'ST');
    }

    /// @notice Approves the stipulated contract to spend the given allowance in the given token
    /// @dev Errors with 'SA' if transfer fails
    /// @param token The contract address of the token to be approved
    /// @param to The target of the approval
    /// @param value The amount of the given token the target will be allowed to spend
    function safeApprove(
        address token,
        address to,
        uint256 value
    ) internal {
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(IERC20.approve.selector, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'SA');
    }

    /// @notice Transfers ETH to the recipient address
    /// @dev Fails with `STE`
    /// @param to The destination of the transfer
    /// @param value The value to be transferred
    function safeTransferETH(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, 'STE');
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;

import '@uniswap/v3-core/contracts/interfaces/callback/IUniswapV3SwapCallback.sol';

/// @title Router token swapping functionality
/// @notice Functions for swapping tokens via Uniswap V3
interface ISwapRouter is IUniswapV3SwapCallback {
    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
        uint160 sqrtPriceLimitX96;
    }

    /// @notice Swaps `amountIn` of one token for as much as possible of another token
    /// @param params The parameters necessary for the swap, encoded as `ExactInputSingleParams` in calldata
    /// @return amountOut The amount of the received token
    function exactInputSingle(ExactInputSingleParams calldata params) external payable returns (uint256 amountOut);

    struct ExactInputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
    }

    /// @notice Swaps `amountIn` of one token for as much as possible of another along the specified path
    /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata
    /// @return amountOut The amount of the received token
    function exactInput(ExactInputParams calldata params) external payable returns (uint256 amountOut);

    struct ExactOutputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
        uint160 sqrtPriceLimitX96;
    }

    /// @notice Swaps as little as possible of one token for `amountOut` of another token
    /// @param params The parameters necessary for the swap, encoded as `ExactOutputSingleParams` in calldata
    /// @return amountIn The amount of the input token
    function exactOutputSingle(ExactOutputSingleParams calldata params) external payable returns (uint256 amountIn);

    struct ExactOutputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
    }

    /// @notice Swaps as little as possible of one token for `amountOut` of another along the specified path (reversed)
    /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactOutputParams` in calldata
    /// @return amountIn The amount of the input token
    function exactOutput(ExactOutputParams calldata params) external payable returns (uint256 amountIn);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.8.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IWETH is IERC20 {
  function deposit() external payable;
  function withdraw(uint256) external;
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

interface IPirexEth {
  function deposit(address receiver, bool shouldCompound)
    external
    payable
    returns (uint256 postFeeAmount, uint256 feeAmount);

  function fees(uint8 _feeType) external view returns (uint32);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol";

interface IApxETH is IERC4626 {
  function pirexEth() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;

/// @title Callback for IUniswapV3PoolActions#swap
/// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface
interface IUniswapV3SwapCallback {
    /// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap.
    /// @dev In the implementation you must pay the pool tokens owed for the swap.
    /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.
    /// amount0Delta and amount1Delta can both be 0 if no tokens were swapped.
    /// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by
    /// the end of the swap. If positive, the callback must send that amount of token0 to the pool.
    /// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by
    /// the end of the swap. If positive, the callback must send that amount of token1 to the pool.
    /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call
    function uniswapV3SwapCallback(
        int256 amount0Delta,
        int256 amount1Delta,
        bytes calldata data
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";
import {IERC20Metadata} from "../token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

    event Withdraw(
        address indexed sender,
        address indexed receiver,
        address indexed owner,
        uint256 assets,
        uint256 shares
    );

    /**
     * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
     *
     * - MUST be an ERC-20 token contract.
     * - MUST NOT revert.
     */
    function asset() external view returns (address assetTokenAddress);

    /**
     * @dev Returns the total amount of the underlying asset that is “managed” by Vault.
     *
     * - SHOULD include any compounding that occurs from yield.
     * - MUST be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT revert.
     */
    function totalAssets() external view returns (uint256 totalManagedAssets);

    /**
     * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToShares(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToAssets(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
     * through a deposit call.
     *
     * - MUST return a limited value if receiver is subject to some deposit limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
     * - MUST NOT revert.
     */
    function maxDeposit(address receiver) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
     *   call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
     *   in the same transaction.
     * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
     *   deposit would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewDeposit(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   deposit execution, and are accounted for during deposit.
     * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function deposit(uint256 assets, address receiver) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
     * - MUST return a limited value if receiver is subject to some mint limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
     * - MUST NOT revert.
     */
    function maxMint(address receiver) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
     *   in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
     *   same transaction.
     * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
     *   would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by minting.
     */
    function previewMint(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
     *   execution, and are accounted for during mint.
     * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function mint(uint256 shares, address receiver) external returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
     * Vault, through a withdraw call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxWithdraw(address owner) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
     *   call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
     *   called
     *   in the same transaction.
     * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
     *   the withdrawal would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewWithdraw(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   withdraw execution, and are accounted for during withdraw.
     * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
     * through a redeem call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxRedeem(address owner) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
     *   in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
     *   same transaction.
     * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
     *   redemption would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by redeeming.
     */
    function previewRedeem(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   redeem execution, and are accounted for during redeem.
     * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

{
  "remappings": [
    "hero-tokens/test/=test/",
    "ds-test/=node_modules/@layerzerolabs/toolbox-foundry/lib/ds-test/",
    "forge-std/=node_modules/@layerzerolabs/toolbox-foundry/lib/forge-std/src/",
    "@layerzerolabs/=node_modules/@layerzerolabs/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "heroglyph-library/=node_modules/@layerzerolabs/toolbox-foundry/lib/heroglyph-library/src/",
    "@axelar-network/=node_modules/@axelar-network/",
    "@chainlink/=node_modules/@chainlink/",
    "@eth-optimism/=node_modules/@eth-optimism/",
    "hardhat-deploy/=node_modules/hardhat-deploy/",
    "hardhat/=node_modules/hardhat/",
    "solidity-bytes-utils/=node_modules/solidity-bytes-utils/",
    "@prb-math/=node_modules/@layerzerolabs/toolbox-foundry/lib/prb-math/",
    "@prb/math/=node_modules/@layerzerolabs/toolbox-foundry/lib/prb-math/",
    "@sablier/v2-core/=node_modules/@sablier/v2-core/",
    "@uniswap/v3-periphery/=node_modules/@layerzerolabs/toolbox-foundry/lib/v3-periphery/",
    "@uniswap/v3-core/=node_modules/@layerzerolabs/toolbox-foundry/lib/v3-core/",
    "atoumic/=node_modules/@layerzerolabs/toolbox-foundry/lib/atoumic/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": true,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"BPS","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CHAINLINK_DAI_ETH","outputs":[{"internalType":"contract IChainlinkOracle","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DAI","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DRIP_VAULT_DAI","outputs":[{"internalType":"contract IDripVault","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DRIP_VAULT_ETH","outputs":[{"internalType":"contract IDripVault","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINIMUM_SWAP_DAI","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PIREX_ETH","outputs":[{"internalType":"contract IPirexEth","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PRECISION","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SWAP_ROUTER","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WETH","outputs":[{"internalType":"contract IWETH","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"allowedSlippage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"_megapools","type":"address[]"},{"internalType":"uint128[]","name":"_weights","type":"uint128[]"}],"name":"applyGauges","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claim","outputs":[{"internalType":"uint256","name":"rewards_","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"epochDuration","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"epochId","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"epochs","outputs":[{"internalType":"uint32","name":"endOfEpoch","type":"uint32"},{"internalType":"uint128","name":"totalRewards","type":"uint128"},{"internalType":"uint128","name":"totalWeight","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"gaugeController","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"_epochId","type":"uint64"}],"name":"getEpochData","outputs":[{"internalType":"uint128","name":"totalRewards_","type":"uint128"},{"internalType":"uint128","name":"totalWeight_","type":"uint128"},{"internalType":"uint32","name":"endOfEpoch_","type":"uint32"},{"internalType":"address[]","name":"megapools_","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"_epochId","type":"uint64"},{"internalType":"address","name":"_megapool","type":"address"}],"name":"getMegapoolWeight","outputs":[{"internalType":"uint128","name":"weight_","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_megapool","type":"address"}],"name":"getRewards","outputs":[{"internalType":"uint256","name":"totalRewards_","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":"uint256","name":"_allowedSlippage","type":"uint256"}],"name":"setAllowedSlippage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_epochDuration","type":"uint32"}],"name":"setEpochDuration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_gaugeController","type":"address"}],"name":"setGaugeController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_streamingPool","type":"address"}],"name":"setStreamingPool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"streamingPool","outputs":[{"internalType":"contract IStreamingPool","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000c90b92d70af24ef1369389f1a1e3887305cd89c90000000000000000000000004b4cd9807bf3de891cdf57c54b264be462d779f8000000000000000000000000cb6dfd06973bf66c8bd2779538e5c8311b8070b800000000000000000000000090a8e18c1b382fc59009c24081ac58e28b86311b000000000000000000000000e592427a0aece92de3edee1f18e0157c05861564000000000000000000000000773616e4d11a78f511299002da57a0a94577f1f4000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2

-----Decoded View---------------
Arg [0] : _owner (address): 0xc90B92d70AF24eF1369389f1A1E3887305cD89c9
Arg [1] : _gaugeController (address): 0x4B4cd9807BF3de891cDF57C54B264be462d779F8
Arg [2] : _dripVaultETH (address): 0xCb6DFd06973bF66C8bD2779538e5C8311B8070B8
Arg [3] : _dripVaultDAI (address): 0x90A8E18c1B382Fc59009c24081Ac58E28b86311b
Arg [4] : _swapRouter (address): 0xE592427A0AEce92De3Edee1F18E0157C05861564
Arg [5] : _chainlinkDaiETH (address): 0x773616E4d11A78F511299002da57A0a94577F1f4
Arg [6] : _weth (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2

-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 000000000000000000000000c90b92d70af24ef1369389f1a1e3887305cd89c9
Arg [1] : 0000000000000000000000004b4cd9807bf3de891cdf57c54b264be462d779f8
Arg [2] : 000000000000000000000000cb6dfd06973bf66c8bd2779538e5c8311b8070b8
Arg [3] : 00000000000000000000000090a8e18c1b382fc59009c24081ac58e28b86311b
Arg [4] : 000000000000000000000000e592427a0aece92de3edee1f18e0157c05861564
Arg [5] : 000000000000000000000000773616e4d11a78f511299002da57a0a94577f1f4
Arg [6] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2