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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { ICustomConnectorRegistry } from "contracts/ConnectorRegistry.sol";
import { IGaugeRegistryVoter } from "contracts/connectors/GaugeRegistry.sol";
import { ShadowV2GaugeConnector } from
    "contracts/connectors/shadow/ShadowV2GaugeConnector.sol";
import { ShadowV3GaugeConnector } from
    "contracts/connectors/shadow/ShadowV3GaugeConnector.sol";

contract ShadowGaugeRegistry is ICustomConnectorRegistry {
    IGaugeRegistryVoter public immutable voter;
    ShadowV2GaugeConnector public immutable shadowV2GaugeConnector;
    ShadowV3GaugeConnector public immutable shadowV3GaugeConnector;

    constructor(
        IGaugeRegistryVoter voter_,
        ShadowV2GaugeConnector shadowV2GaugeConnector_,
        ShadowV3GaugeConnector shadowV3GaugeConnector_
    ) {
        voter = voter_;
        shadowV2GaugeConnector = shadowV2GaugeConnector_;
        shadowV3GaugeConnector = shadowV3GaugeConnector_;
    }

    function connectorOf(
        address target
    ) external view override returns (address) {
        if (voter.isClGauge(target)) {
            return address(shadowV3GaugeConnector);
        }
        if (voter.isGauge(target)) {
            return address(shadowV2GaugeConnector);
        }

        return address(0);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { Admin } from "contracts/base/Admin.sol";
import { TimelockAdmin } from "contracts/base/TimelockAdmin.sol";

error ConnectorNotRegistered(address target);
error CustomRegistryAlreadyRegistered();

interface ICustomConnectorRegistry {
    function connectorOf(
        address target
    ) external view returns (address);
}

contract ConnectorRegistry is Admin, TimelockAdmin {
    event ConnectorChanged(address target, address connector);
    event CustomRegistryAdded(address registry);
    event CustomRegistryRemoved(address registry);

    error ConnectorAlreadySet(address target);
    error ConnectorNotSet(address target);
    error ArrayLengthMismatch();

    ICustomConnectorRegistry[] public customRegistries;

    mapping(address target => address connector) private connectors_;

    constructor(
        address admin_,
        address timelockAdmin_
    ) Admin(admin_) TimelockAdmin(timelockAdmin_) { }

    /// Admin functions

    /// @notice Update connector addresses for a batch of targets.
    /// @dev Controls which connector contracts are used for the specified
    /// targets.
    /// @custom:access Restricted to protocol admin.
    function setConnectors(
        address[] calldata targets,
        address[] calldata connectors
    ) external onlyAdmin {
        if (targets.length != connectors.length) {
            revert ArrayLengthMismatch();
        }
        for (uint256 i; i != targets.length;) {
            if (connectors_[targets[i]] != address(0)) {
                revert ConnectorAlreadySet(targets[i]);
            }
            connectors_[targets[i]] = connectors[i];
            emit ConnectorChanged(targets[i], connectors[i]);

            unchecked {
                ++i;
            }
        }
    }

    function updateConnectors(
        address[] calldata targets,
        address[] calldata connectors
    ) external onlyTimelockAdmin {
        if (targets.length != connectors.length) {
            revert ArrayLengthMismatch();
        }
        for (uint256 i; i != targets.length;) {
            if (connectors_[targets[i]] == address(0)) {
                revert ConnectorNotSet(targets[i]);
            }
            connectors_[targets[i]] = connectors[i];
            emit ConnectorChanged(targets[i], connectors[i]);

            unchecked {
                ++i;
            }
        }
    }

    /// @notice Append an address to the custom registries list.
    /// @custom:access Restricted to protocol admin.
    function addCustomRegistry(
        ICustomConnectorRegistry registry
    ) external onlyAdmin {
        if (isCustomRegistry(registry)) {
            revert CustomRegistryAlreadyRegistered();
        }

        customRegistries.push(registry);
        emit CustomRegistryAdded(address(registry));
    }

    /// @notice Replace an address in the custom registries list.
    /// @custom:access Restricted to protocol admin.
    function updateCustomRegistry(
        uint256 index,
        ICustomConnectorRegistry newRegistry
    ) external onlyTimelockAdmin {
        ICustomConnectorRegistry oldRegistry = customRegistries[index];
        emit CustomRegistryRemoved(address(oldRegistry));
        customRegistries[index] = newRegistry;
        if (address(newRegistry) != address(0)) {
            emit CustomRegistryAdded(address(newRegistry));
        }
    }

    /// Public functions

    function connectorOf(
        address target
    ) external view returns (address) {
        address connector = _getConnector(target);

        if (connector != address(0)) {
            return connector;
        }

        revert ConnectorNotRegistered(target);
    }

    function hasConnector(
        address target
    ) external view returns (bool) {
        return _getConnector(target) != address(0);
    }

    function isCustomRegistry(
        ICustomConnectorRegistry registry
    ) public view returns (bool) {
        for (uint256 i; i != customRegistries.length;) {
            if (address(customRegistries[i]) == address(registry)) {
                return true;
            }
            unchecked {
                ++i;
            }
        }
        return false;
    }

    /// Internal functions

    function _getConnector(
        address target
    ) internal view returns (address) {
        address connector = connectors_[target];
        if (connector != address(0)) {
            return connector;
        }
        uint256 length = customRegistries.length;
        for (uint256 i; i != length;) {
            if (address(customRegistries[i]) != address(0)) {
                (bool success, bytes memory data) = address(customRegistries[i])
                    .staticcall(
                    abi.encodeWithSelector(
                        ICustomConnectorRegistry.connectorOf.selector, target
                    )
                );
                if (success && data.length == 32) {
                    address _connector = abi.decode(data, (address));
                    if (_connector != address(0)) {
                        return _connector;
                    }
                }
            }

            unchecked {
                ++i;
            }
        }

        return address(0);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { ICustomConnectorRegistry } from "contracts/ConnectorRegistry.sol";

interface IGaugeRegistryVoter {
    function isGauge(
        address target
    ) external view returns (bool);

    function isClGauge(
        address target
    ) external view returns (bool);

    function poolForGauge(
        address gauge
    ) external view returns (address);
}

contract GaugeRegistry is ICustomConnectorRegistry {
    IGaugeRegistryVoter public immutable voter;
    address public immutable connector;

    constructor(IGaugeRegistryVoter voter_, address connector_) {
        voter = voter_;
        connector = connector_;
    }

    function connectorOf(
        address target
    ) external view override returns (address) {
        if (voter.isGauge(target)) {
            return connector;
        }

        return address(0);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { SafeTransferLib } from "solmate/utils/SafeTransferLib.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IFarmConnector, Farm } from "contracts/interfaces/IFarmConnector.sol";
import { INuriGauge } from "contracts/interfaces/external/nuri/INuriGauge.sol";

import {
    ShadowRewardBehavior,
    ShadowV2GaugeClaim
} from "contracts/connectors/shadow/ShadowGaugeClaim.sol";

struct ShadowClaimExtraData {
    address[] claimTokens;
    ShadowRewardBehavior behavior;
}

contract ShadowV2GaugeConnector is IFarmConnector, ShadowV2GaugeClaim {
    function deposit(
        Farm calldata farm,
        address token,
        bytes memory // _extraData
    ) external payable override {
        uint256 amount = IERC20(token).balanceOf(address(this));
        SafeTransferLib.safeApprove(token, farm.stakingContract, amount);
        INuriGauge(farm.stakingContract).deposit(amount);
    }

    function withdraw(
        Farm calldata farm,
        uint256 amount,
        bytes memory // _extraData
    ) external override {
        INuriGauge(farm.stakingContract).withdraw(amount);
    }

    function claim(
        Farm calldata farm,
        bytes memory extraData
    ) external override {
        ShadowClaimExtraData memory extra =
            abi.decode(extraData, (ShadowClaimExtraData));

        _claimGaugeRewards(
            farm.stakingContract, extra.claimTokens, extra.behavior
        );
    }

    function balanceOf(
        Farm calldata farm,
        address user
    ) external view override returns (uint256) {
        return INuriGauge(farm.stakingContract).balanceOf(user);
    }

    function earned(
        Farm calldata farm,
        address user,
        address[] calldata rewardTokens
    ) external view override returns (uint256[] memory) {
        uint256[] memory rewards = new uint256[](rewardTokens.length);
        for (uint256 i = 0; i < rewardTokens.length; i++) {
            rewards[i] =
                INuriGauge(farm.stakingContract).earned(rewardTokens[i], user);
        }
        return rewards;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { IShadowGaugeV3 } from
    "contracts/interfaces/external/shadow/IShadowGaugeV3.sol";
import { IShadowNonfungiblePositionManager } from
    "contracts/interfaces/external/shadow/IShadowNonfungiblePositionManager.sol";

import {
    INftFarmConnector,
    NftPosition
} from "contracts/interfaces/INftFarmConnector.sol";
import {
    ShadowV3GaugeClaim,
    ShadowRewardBehavior
} from "contracts/connectors/shadow/ShadowGaugeClaim.sol";

struct ShadowClaimExtraData {
    // claimTokens need to be passed as extraData because xShadow is one of them
    // The default claim behavior in NftFarmStrategy is to transfer the reward
    // tokens to the user at the end, but xShadow is not transferable. This is a
    // workaround.
    address[] claimTokens;
    ShadowRewardBehavior behavior;
}

contract ShadowV3GaugeConnector is INftFarmConnector, ShadowV3GaugeClaim {
    function depositExistingNft(
        NftPosition calldata,
        bytes calldata // extraData
    ) external payable { }

    function withdrawNft(
        NftPosition calldata,
        bytes calldata // extraData
    ) external payable { }
    // Payable in case an NFT is withdrawn to be increased with ETH

    function claim(
        NftPosition calldata position,
        address[] memory, // rewardTokens not used here
        uint128 amount0Max,
        uint128 amount1Max,
        bytes calldata extraData
    ) external payable {
        ShadowClaimExtraData memory extra =
            abi.decode(extraData, (ShadowClaimExtraData));
        try IShadowNonfungiblePositionManager(address(position.nft)).getReward(
            position.tokenId, extra.claimTokens
        ) {
            // Claim from old gauge for any old rewards, can throw if the old
            // gauge is empty
        } catch { }

        _claimGaugeRewards( // Claim from current gauge
            position.farm.stakingContract,
            position.tokenId,
            extra.claimTokens,
            extra.behavior
        );

        if (amount0Max > 0 || amount1Max > 0) {
            // Claim fees if applicable
            IShadowNonfungiblePositionManager(address(position.nft)).collect(
                IShadowNonfungiblePositionManager.CollectParams({
                    tokenId: position.tokenId,
                    recipient: address(this),
                    amount0Max: amount0Max,
                    amount1Max: amount1Max
                })
            );
        }
    }

    function isStaked(
        address,
        NftPosition calldata
    ) external view virtual override returns (bool) {
        return true; // Shadow positions are staked by default
    }

    function earned(
        NftPosition calldata position,
        address[] memory rewardTokens
    ) external view virtual override returns (uint256[] memory) {
        IShadowGaugeV3 gauge = IShadowGaugeV3(position.farm.stakingContract);
        uint256[] memory rewards = new uint256[](rewardTokens.length);
        for (uint256 i = 0; i < rewardTokens.length; i++) {
            rewards[i] = gauge.earned(rewardTokens[i], position.tokenId);
        }
        return rewards;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

/// @title Admin contract
/// @author vfat.tools
/// @notice Provides an administration mechanism allowing restricted functions
abstract contract Admin {
    /// ERRORS ///

    /// @notice Thrown when the caller is not the admin
    error NotAdminError(); //0xb5c42b3b

    /// EVENTS ///

    /// @notice Emitted when a new admin is set
    /// @param oldAdmin Address of the old admin
    /// @param newAdmin Address of the new admin
    event AdminSet(address oldAdmin, address newAdmin);

    /// STORAGE ///

    /// @notice Address of the current admin
    address public admin;

    /// MODIFIERS ///

    /// @dev Restricts a function to the admin
    modifier onlyAdmin() {
        if (msg.sender != admin) revert NotAdminError();
        _;
    }

    /// WRITE FUNCTIONS ///

    /// @param admin_ Address of the admin
    constructor(
        address admin_
    ) {
        emit AdminSet(address(0), admin_);
        admin = admin_;
    }

    /// @notice Sets a new admin
    /// @param newAdmin Address of the new admin
    /// @custom:access Restricted to protocol admin.
    function setAdmin(
        address newAdmin
    ) external onlyAdmin {
        emit AdminSet(admin, newAdmin);
        admin = newAdmin;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

/// @title TimelockAdmin contract
/// @author vfat.tools
/// @notice Provides an timelockAdministration mechanism allowing restricted
/// functions
abstract contract TimelockAdmin {
    /// ERRORS ///

    /// @notice Thrown when the caller is not the timelockAdmin
    error NotTimelockAdminError();

    /// EVENTS ///

    /// @notice Emitted when a new timelockAdmin is set
    /// @param oldTimelockAdmin Address of the old timelockAdmin
    /// @param newTimelockAdmin Address of the new timelockAdmin
    event TimelockAdminSet(address oldTimelockAdmin, address newTimelockAdmin);

    /// STORAGE ///

    /// @notice Address of the current timelockAdmin
    address public timelockAdmin;

    /// MODIFIERS ///

    /// @dev Restricts a function to the timelockAdmin
    modifier onlyTimelockAdmin() {
        if (msg.sender != timelockAdmin) revert NotTimelockAdminError();
        _;
    }

    /// WRITE FUNCTIONS ///

    /// @param timelockAdmin_ Address of the timelockAdmin
    constructor(address timelockAdmin_) {
        emit TimelockAdminSet(timelockAdmin, timelockAdmin_);
        timelockAdmin = timelockAdmin_;
    }

    /// @notice Sets a new timelockAdmin
    /// @dev Can only be called by the current timelockAdmin
    /// @param newTimelockAdmin Address of the new timelockAdmin
    function setTimelockAdmin(address newTimelockAdmin)
        external
        onlyTimelockAdmin
    {
        emit TimelockAdminSet(timelockAdmin, newTimelockAdmin);
        timelockAdmin = newTimelockAdmin;
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

import {ERC20} from "../tokens/ERC20.sol";

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer.
/// @dev Note that none of the functions in this library check that a token has code at all! That responsibility is delegated to the caller.
library SafeTransferLib {
    /*//////////////////////////////////////////////////////////////
                                ERRORS
    //////////////////////////////////////////////////////////////*/

    error ETHTransferFailed();
    error TransferFromFailed();
    error TransferFailed();
    error ApproveFailed();

    /*//////////////////////////////////////////////////////////////
                             ETH OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferETH(address to, uint256 amount) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Transfer the ETH and store if it succeeded or not.
            success := call(gas(), to, amount, 0, 0, 0, 0)
        }

        if (!success) revert ETHTransferFailed();
    }

    /*//////////////////////////////////////////////////////////////
                            ERC20 OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), from) // Append the "from" argument.
            mstore(add(freeMemoryPointer, 36), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 68), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 100 because the length of our calldata totals up like so: 4 + 32 * 3.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 100, 0, 32)
            )
        }

        if (!success) revert TransferFromFailed();
    }

    function safeTransfer(
        address token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        if (!success) revert TransferFailed();
    }

    function safeApprove(
        address token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), to) // Append the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        if (!success) revert ApproveFailed();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @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 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);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { Farm } from "contracts/structs/FarmStrategyStructs.sol";

interface IFarmConnector {
    function deposit(
        Farm calldata farm,
        address token,
        bytes memory extraData
    ) external payable;

    function withdraw(
        Farm calldata farm,
        uint256 amount,
        bytes memory extraData
    ) external;

    function claim(Farm calldata farm, bytes memory extraData) external;

    function balanceOf(
        Farm calldata farm,
        address user
    ) external view returns (uint256);

    function earned(
        Farm calldata farm,
        address user,
        address[] calldata rewardTokens
    ) external view returns (uint256[] memory);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

interface INuriGauge {
    function initialize(
        address _stake,
        address _feeDist,
        address _voter,
        bool _forPair
    ) external;

    function getReward(address account, address[] calldata tokens) external;

    function claimFees()
        external
        returns (uint256 claimed0, uint256 claimed1);

    function left(
        address token
    ) external view returns (uint256);

    function rewardsListLength() external view returns (uint256);

    function rewardsList() external view returns (address[] memory);

    function earned(
        address token,
        address account
    ) external view returns (uint256);

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

    function notifyRewardAmount(address token, uint256 amount) external;

    struct Reward {
        uint256 rewardRate;
        uint256 periodFinish;
        uint256 lastUpdateTime;
        uint256 rewardPerTokenStored;
    }

    function rewardData(
        address token
    ) external view returns (Reward memory);

    function deposit(
        uint256 amount
    ) external;

    function withdraw(
        uint256 amount
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IShadowGaugeV3 } from
    "contracts/interfaces/external/shadow/IShadowGaugeV3.sol";
import { INuriGauge } from "contracts/interfaces/external/nuri/INuriGauge.sol";

interface IXShadow {
    function exit(
        uint256 amount
    ) external returns (uint256 exitedAmount);
}

interface IX33 {
    function deposit(
        uint256 assets,
        address receiver
    ) external returns (uint256 shares);
}

enum ShadowRewardBehavior {
    Exit, // Exit to Shadow (50% penalty)
    X33, // Deposit into X33
    Keep // Keep in xShadow on Sickle

}

contract ShadowAddresses {
    address constant X_SHADOW = 0x5050bc082FF4A74Fb6B0B04385dEfdDB114b2424;
    address constant X33_ADAPTER = 0x9710E10A8f6FbA8C391606fee18614885684548d;
}

contract ShadowV3GaugeClaim is ShadowAddresses {
    // Shadow rewards are in xShadow, which is not transferable.
    // When claiming, there are three options:
    // 1. Exit to Shadow (50% penalty)
    // 2. Deposit into X33 (no penalty)
    // 3. Keep in xShadow on Sickle
    // This function supports all three options.
    function _claimGaugeRewards(
        address gauge,
        uint256 tokenId,
        address[] memory rewardTokens,
        ShadowRewardBehavior behavior
    ) internal {
        IShadowGaugeV3(gauge).getReward(tokenId, rewardTokens);
        uint256 rewards = IERC20(X_SHADOW).balanceOf(address(this));
        if (rewards > 0) {
            if (behavior == ShadowRewardBehavior.X33) {
                IERC20(X_SHADOW).approve(X33_ADAPTER, rewards);
                IX33(X33_ADAPTER).deposit(rewards, address(this));
            } else if (behavior == ShadowRewardBehavior.Exit) {
                IXShadow(X_SHADOW).exit(rewards);
            } // else keep in xShadow on Sickle
        }
    }
}

contract ShadowV2GaugeClaim is ShadowAddresses {
    function _claimGaugeRewards(
        address gauge,
        address[] memory rewardTokens,
        ShadowRewardBehavior behavior
    ) internal {
        INuriGauge(gauge).getReward(address(this), rewardTokens);
        uint256 rewards = IERC20(X_SHADOW).balanceOf(address(this));
        if (rewards > 0) {
            if (behavior == ShadowRewardBehavior.X33) {
                IERC20(X_SHADOW).approve(X33_ADAPTER, rewards);
                IX33(X33_ADAPTER).deposit(rewards, address(this));
            } else if (behavior == ShadowRewardBehavior.Exit) {
                IXShadow(X_SHADOW).exit(rewards);
            } // else keep in xShadow on Sickle
        }
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8;

interface IShadowGaugeV3 {
    error NOT_AUTHORIZED();
    error NOT_VOTER();
    error NOT_GT_ZERO(uint256 amt);
    error CANT_CLAIM_FUTURE();
    error RETRO();

    /// @notice Emitted when a reward notification is made.
    /// @param from The address from which the reward is notified.
    /// @param reward The address of the reward token.
    /// @param amount The amount of rewards notified.
    /// @param period The period for which the rewards are notified.
    event NotifyReward(
        address indexed from,
        address indexed reward,
        uint256 amount,
        uint256 period
    );

    /// @notice Emitted when a bribe is made.
    /// @param from The address from which the bribe is made.
    /// @param reward The address of the reward token.
    /// @param amount The amount of tokens bribed.
    /// @param period The period for which the bribe is made.
    event Bribe(
        address indexed from,
        address indexed reward,
        uint256 amount,
        uint256 period
    );

    /// @notice Emitted when rewards are claimed.
    /// @param period The period for which the rewards are claimed.
    /// @param _positionHash The identifier of the NFP for which rewards are
    /// claimed.
    /// @param receiver The address of the receiver of the claimed rewards.
    /// @param reward The address of the reward token.
    /// @param amount The amount of rewards claimed.
    event ClaimRewards(
        uint256 period,
        bytes32 _positionHash,
        address receiver,
        address reward,
        uint256 amount
    );

    /// @notice Emitted when a new reward token was pushed to the rewards array
    event RewardAdded(address reward);

    /// @notice Emitted when a reward token was removed from the rewards array
    event RewardRemoved(address reward);

    /// @notice Retrieves the value of the firstPeriod variable.
    /// @return The value of the firstPeriod variable.
    function firstPeriod() external returns (uint256);

    /// @notice Retrieves the total supply of a specific token for a given
    /// period.
    /// @param period The period for which to retrieve the total supply.
    /// @param token The address of the token for which to retrieve the total
    /// supply.
    /// @return The total supply of the specified token for the given period.
    function tokenTotalSupplyByPeriod(
        uint256 period,
        address token
    ) external view returns (uint256);

    /// @notice Retrieves the getTokenTotalSupplyByPeriod of the current period.
    /// @dev included to support voter's left() check during distribute().
    /// @param token The address of the token for which to retrieve the
    /// remaining amount.
    /// @return The amount of tokens left to distribute in this period.
    function left(
        address token
    ) external view returns (uint256);

    /// @notice Retrieves the reward rate for a specific reward address.
    /// @dev this method returns the base rate without boost
    /// @param token The address of the reward for which to retrieve the reward
    /// rate.
    /// @return The reward rate for the specified reward address.
    function rewardRate(
        address token
    ) external view returns (uint256);

    /// @notice Retrieves the claimed amount for a specific period, position
    /// hash, and user address.
    /// @param period The period for which to retrieve the claimed amount.
    /// @param _positionHash The identifier of the NFP for which to retrieve the
    /// claimed amount.
    /// @param reward The address of the token for the claimed amount.
    /// @return The claimed amount for the specified period, token ID, and user
    /// address.
    function periodClaimedAmount(
        uint256 period,
        bytes32 _positionHash,
        address reward
    ) external view returns (uint256);

    /// @notice Retrieves the last claimed period for a specific token, token ID
    /// combination.
    /// @param token The address of the reward token for which to retrieve the
    /// last claimed period.
    /// @param _positionHash The identifier of the NFP for which to retrieve the
    /// last claimed period.
    /// @return The last claimed period for the specified token and token ID.
    function lastClaimByToken(
        address token,
        bytes32 _positionHash
    ) external view returns (uint256);

    /// @notice Retrieves the reward address at the specified index in the
    /// rewards array.
    /// @param index The index of the reward address to retrieve.
    /// @return The reward address at the specified index.
    function rewards(
        uint256 index
    ) external view returns (address);

    /// @notice Checks if a given address is a valid reward.
    /// @param reward The address to check.
    /// @return A boolean indicating whether the address is a valid reward.
    function isReward(
        address reward
    ) external view returns (bool);

    /// @notice Returns an array of reward token addresses.
    /// @return An array of reward token addresses.
    function getRewardTokens() external view returns (address[] memory);

    /// @notice Returns the hash used to store positions in a mapping
    /// @param owner The address of the position owner
    /// @param index The index of the position
    /// @param tickLower The lower tick boundary of the position
    /// @param tickUpper The upper tick boundary of the position
    /// @return _hash The hash used to store positions in a mapping
    function positionHash(
        address owner,
        uint256 index,
        int24 tickLower,
        int24 tickUpper
    ) external pure returns (bytes32);

    /*
    /// @notice Retrieves the liquidity and boosted liquidity for a specific
    NFP.
    /// @param tokenId The identifier of the NFP.
    /// @return liquidity The liquidity of the position token.
    function positionInfo(
        uint256 tokenId
    ) external view returns (uint128 liquidity);
    */

    /// @notice Returns the amount of rewards earned for an NFP.
    /// @param token The address of the token for which to retrieve the earned
    /// rewards.
    /// @param tokenId The identifier of the specific NFP for which to retrieve
    /// the earned rewards.
    /// @return reward The amount of rewards earned for the specified NFP and
    /// tokens.
    function earned(
        address token,
        uint256 tokenId
    ) external view returns (uint256 reward);

    /// @notice Returns the amount of rewards earned during a period for an NFP.
    /// @param period The period for which to retrieve the earned rewards.
    /// @param token The address of the token for which to retrieve the earned
    /// rewards.
    /// @param tokenId The identifier of the specific NFP for which to retrieve
    /// the earned rewards.
    /// @return reward The amount of rewards earned for the specified NFP and
    /// tokens.
    function periodEarned(
        uint256 period,
        address token,
        uint256 tokenId
    ) external view returns (uint256);

    /// @notice Retrieves the earned rewards for a specific period, token,
    /// owner, index, tickLower, and tickUpper.
    /// @param period The period for which to retrieve the earned rewards.
    /// @param token The address of the token for which to retrieve the earned
    /// rewards.
    /// @param owner The address of the owner for which to retrieve the earned
    /// rewards.
    /// @param index The index for which to retrieve the earned rewards.
    /// @param tickLower The tick lower bound for which to retrieve the earned
    /// rewards.
    /// @param tickUpper The tick upper bound for which to retrieve the earned
    /// rewards.
    /// @return The earned rewards for the specified period, token, owner,
    /// index, tickLower, and tickUpper.
    function periodEarned(
        uint256 period,
        address token,
        address owner,
        uint256 index,
        int24 tickLower,
        int24 tickUpper
    ) external view returns (uint256);

    /// @notice Retrieves the earned rewards for a specific period, token,
    /// owner, index, tickLower, and tickUpper.
    /// @dev used by getReward() and saves gas by saving states
    /// @param period The period for which to retrieve the earned rewards.
    /// @param token The address of the token for which to retrieve the earned
    /// rewards.
    /// @param owner The address of the owner for which to retrieve the earned
    /// rewards.
    /// @param index The index for which to retrieve the earned rewards.
    /// @param tickLower The tick lower bound for which to retrieve the earned
    /// rewards.
    /// @param tickUpper The tick upper bound for which to retrieve the earned
    /// rewards.
    /// @param caching Whether to cache the results or not.
    /// @return The earned rewards for the specified period, token, owner,
    /// index, tickLower, and tickUpper.
    function cachePeriodEarned(
        uint256 period,
        address token,
        address owner,
        uint256 index,
        int24 tickLower,
        int24 tickUpper,
        bool caching
    ) external returns (uint256);

    /// @notice Notifies the contract about the amount of rewards to be
    /// distributed for a specific token.
    /// @param token The address of the token for which to notify the reward
    /// amount.
    /// @param amount The amount of rewards to be distributed.
    function notifyRewardAmount(address token, uint256 amount) external;

    /// @notice Retrieves the reward amount for a specific period, NFP, and
    /// token addresses.
    /// @param period The period for which to retrieve the reward amount.
    /// @param tokens The addresses of the tokens for which to retrieve the
    /// reward amount.
    /// @param tokenId The identifier of the specific NFP for which to retrieve
    /// the reward amount.
    /// @param receiver The address of the receiver of the reward amount.
    function getPeriodReward(
        uint256 period,
        address[] calldata tokens,
        uint256 tokenId,
        address receiver
    ) external;

    /// @notice Retrieves the rewards for a specific period, set of tokens,
    /// owner, index, tickLower, tickUpper, and receiver.
    /// @param period The period for which to retrieve the rewards.
    /// @param tokens An array of token addresses for which to retrieve the
    /// rewards.
    /// @param owner The address of the owner for which to retrieve the rewards.
    /// @param index The index for which to retrieve the rewards.
    /// @param tickLower The tick lower bound for which to retrieve the rewards.
    /// @param tickUpper The tick upper bound for which to retrieve the rewards.
    /// @param receiver The address of the receiver of the rewards.
    function getPeriodReward(
        uint256 period,
        address[] calldata tokens,
        address owner,
        uint256 index,
        int24 tickLower,
        int24 tickUpper,
        address receiver
    ) external;

    /// @notice retrieves rewards based on an NFP id and an array of tokens
    function getReward(uint256 tokenId, address[] memory tokens) external;
    /// @notice retrieves rewards based on an array of NFP ids and an array of
    /// tokens
    function getReward(
        uint256[] calldata tokenIds,
        address[] memory tokens
    ) external;
    /// @notice get reward for an owner of an NFP
    function getRewardForOwner(
        uint256 tokenId,
        address[] memory tokens
    ) external;

    function addRewards(
        address reward
    ) external;

    function removeRewards(
        address reward
    ) external;

    /// @notice Notifies rewards for periods greater than current period
    /// @dev does not push fees
    /// @dev requires reward token to be whitelisted
    function notifyRewardAmountForPeriod(
        address token,
        uint256 amount,
        uint256 period
    ) external;

    /// @notice Notifies rewards for the next period
    /// @dev does not push fees
    /// @dev requires reward token to be whitelisted
    function notifyRewardAmountNextPeriod(
        address token,
        uint256 amount
    ) external;
}

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

/// @title Non-fungible token for positions
/// @notice Wraps Uniswap V3 positions in a non-fungible token interface which
/// allows for them to be transferred
/// and authorized.
interface IShadowNonfungiblePositionManager {
    /// @notice Emitted when liquidity is increased for a position NFT
    /// @dev Also emitted when a token is minted
    /// @param tokenId The ID of the token for which liquidity was increased
    /// @param liquidity The amount by which liquidity for the NFT position was
    /// increased
    /// @param amount0 The amount of token0 that was paid for the increase in
    /// liquidity
    /// @param amount1 The amount of token1 that was paid for the increase in
    /// liquidity
    event IncreaseLiquidity(
        uint256 indexed tokenId,
        uint128 liquidity,
        uint256 amount0,
        uint256 amount1
    );
    /// @notice Emitted when liquidity is decreased for a position NFT
    /// @param tokenId The ID of the token for which liquidity was decreased
    /// @param liquidity The amount by which liquidity for the NFT position was
    /// decreased
    /// @param amount0 The amount of token0 that was accounted for the decrease
    /// in liquidity
    /// @param amount1 The amount of token1 that was accounted for the decrease
    /// in liquidity
    event DecreaseLiquidity(
        uint256 indexed tokenId,
        uint128 liquidity,
        uint256 amount0,
        uint256 amount1
    );
    /// @notice Emitted when tokens are collected for a position NFT
    /// @dev The amounts reported may not be exactly equivalent to the amounts
    /// transferred, due to rounding behavior
    /// @param tokenId The ID of the token for which underlying tokens were
    /// collected
    /// @param recipient The address of the account that received the collected
    /// tokens
    /// @param amount0 The amount of token0 owed to the position that was
    /// collected
    /// @param amount1 The amount of token1 owed to the position that was
    /// collected
    event Collect(
        uint256 indexed tokenId,
        address recipient,
        uint256 amount0,
        uint256 amount1
    );

    /// @notice Returns the position information associated with a given token
    /// ID.
    /// @dev Throws if the token ID is not valid.
    /// @param tokenId The ID of the token that represents the position
    /// @return token0 The address of the token0 for a specific pool
    /// @return token1 The address of the token1 for a specific pool
    /// @return tickSpacing The tickSpacing the pool
    /// @return tickLower The lower end of the tick range for the position
    /// @return tickUpper The higher end of the tick range for the position
    /// @return liquidity The liquidity of the position
    /// @return feeGrowthInside0LastX128 The fee growth of token0 as of the last
    /// action on the individual position
    /// @return feeGrowthInside1LastX128 The fee growth of token1 as of the last
    /// action on the individual position
    /// @return tokensOwed0 The uncollected amount of token0 owed to the
    /// position as of the last computation
    /// @return tokensOwed1 The uncollected amount of token1 owed to the
    /// position as of the last computation
    function positions(
        uint256 tokenId
    )
        external
        view
        returns (
            address token0,
            address token1,
            int24 tickSpacing,
            int24 tickLower,
            int24 tickUpper,
            uint128 liquidity,
            uint256 feeGrowthInside0LastX128,
            uint256 feeGrowthInside1LastX128,
            uint128 tokensOwed0,
            uint128 tokensOwed1
        );

    struct MintParams {
        address token0;
        address token1;
        int24 tickSpacing;
        int24 tickLower;
        int24 tickUpper;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint256 amount0Min;
        uint256 amount1Min;
        address recipient;
        uint256 deadline;
    }

    /// @notice Creates a new position wrapped in a NFT
    /// @dev Call this when the pool does exist and is initialized. Note that if
    /// the pool is created but not initialized
    /// a method does not exist, i.e. the pool is assumed to be initialized.
    /// @param params The params necessary to mint a position, encoded as
    /// `MintParams` in calldata
    /// @return tokenId The ID of the token that represents the minted position
    /// @return liquidity The amount of liquidity for this position
    /// @return amount0 The amount of token0
    /// @return amount1 The amount of token1
    function mint(
        MintParams calldata params
    )
        external
        payable
        returns (
            uint256 tokenId,
            uint128 liquidity,
            uint256 amount0,
            uint256 amount1
        );

    struct IncreaseLiquidityParams {
        uint256 tokenId;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint256 amount0Min;
        uint256 amount1Min;
        uint256 deadline;
    }

    /// @notice Increases the amount of liquidity in a position, with tokens
    /// paid by the `msg.sender`
    /// @param params tokenId The ID of the token for which liquidity is being
    /// increased,
    /// amount0Desired The desired amount of token0 to be spent,
    /// amount1Desired The desired amount of token1 to be spent,
    /// amount0Min The minimum amount of token0 to spend, which serves as a
    /// slippage check,
    /// amount1Min The minimum amount of token1 to spend, which serves as a
    /// slippage check,
    /// deadline The time by which the transaction must be included to effect
    /// the change
    /// @return liquidity The new liquidity amount as a result of the increase
    /// @return amount0 The amount of token0 to acheive resulting liquidity
    /// @return amount1 The amount of token1 to acheive resulting liquidity
    function increaseLiquidity(
        IncreaseLiquidityParams calldata params
    )
        external
        payable
        returns (uint128 liquidity, uint256 amount0, uint256 amount1);

    struct DecreaseLiquidityParams {
        uint256 tokenId;
        uint128 liquidity;
        uint256 amount0Min;
        uint256 amount1Min;
        uint256 deadline;
    }

    /// @notice Decreases the amount of liquidity in a position and accounts it
    /// to the position
    /// @param params tokenId The ID of the token for which liquidity is being
    /// decreased,
    /// amount The amount by which liquidity will be decreased,
    /// amount0Min The minimum amount of token0 that should be accounted for the
    /// burned liquidity,
    /// amount1Min The minimum amount of token1 that should be accounted for the
    /// burned liquidity,
    /// deadline The time by which the transaction must be included to effect
    /// the change
    /// @return amount0 The amount of token0 accounted to the position's tokens
    /// owed
    /// @return amount1 The amount of token1 accounted to the position's tokens
    /// owed
    function decreaseLiquidity(
        DecreaseLiquidityParams calldata params
    ) external payable returns (uint256 amount0, uint256 amount1);

    struct CollectParams {
        uint256 tokenId;
        address recipient;
        uint128 amount0Max;
        uint128 amount1Max;
    }

    /// @notice Collects up to a maximum amount of fees owed to a specific
    /// position to the recipient
    /// @param params tokenId The ID of the NFT for which tokens are being
    /// collected,
    /// recipient The account that should receive the tokens,
    /// amount0Max The maximum amount of token0 to collect,
    /// amount1Max The maximum amount of token1 to collect
    /// @return amount0 The amount of fees collected in token0
    /// @return amount1 The amount of fees collected in token1
    function collect(
        CollectParams calldata params
    ) external payable returns (uint256 amount0, uint256 amount1);

    /// @notice Burns a token ID, which deletes it from the NFT contract. The
    /// token must have 0 liquidity and all tokens
    /// must be collected first.
    /// @param tokenId The ID of the token that is being burned
    function burn(
        uint256 tokenId
    ) external payable;

    /// @notice Claims gauge rewards from liquidity incentives for a specific
    /// tokenId
    /// @param tokenId The ID of the token to claim rewards from
    /// @param tokens an array of reward tokens to claim
    function getReward(uint256 tokenId, address[] calldata tokens) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { INonfungiblePositionManager } from
    "contracts/interfaces/external/uniswap/INonfungiblePositionManager.sol";
import { Farm } from "contracts/structs/FarmStrategyStructs.sol";
import { NftPosition } from "contracts/structs/NftFarmStrategyStructs.sol";

interface INftFarmConnector {
    function depositExistingNft(
        NftPosition calldata position,
        bytes calldata extraData
    ) external payable;

    function withdrawNft(
        NftPosition calldata position,
        bytes calldata extraData
    ) external payable;
    // Payable in case an NFT is withdrawn to be increased with ETH

    function claim(
        NftPosition calldata position,
        address[] memory rewardTokens,
        uint128 maxAmount0, // For collecting
        uint128 maxAmount1,
        bytes calldata extraData
    ) external payable;

    function earned(
        NftPosition calldata position,
        address[] memory rewardTokens
    ) external view returns (uint256[] memory);

    function isStaked(
        address user,
        NftPosition calldata position
    ) external view returns (bool);
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { ZapIn, ZapOut } from "contracts/libraries/ZapLib.sol";
import { SwapParams } from "contracts/structs/LiquidityStructs.sol";

struct Farm {
    address stakingContract;
    uint256 poolIndex;
}

struct DepositParams {
    Farm farm;
    address[] tokensIn;
    uint256[] amountsIn;
    ZapIn zap;
    bytes extraData;
}

struct WithdrawParams {
    bytes extraData;
    ZapOut zap;
    address[] tokensOut;
}

struct HarvestParams {
    SwapParams[] swaps;
    bytes extraData;
    address[] tokensOut;
}

struct CompoundParams {
    Farm claimFarm;
    bytes claimExtraData;
    address[] rewardTokens;
    ZapIn zap;
    Farm depositFarm;
    bytes depositExtraData;
}

struct SimpleDepositParams {
    Farm farm;
    address lpToken;
    uint256 amountIn;
    bytes extraData;
}

struct SimpleHarvestParams {
    address[] rewardTokens;
    bytes extraData;
}

struct SimpleWithdrawParams {
    address lpToken;
    uint256 amountOut;
    bytes extraData;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { IERC721Enumerable } from
    "openzeppelin-contracts/contracts/interfaces/IERC721Enumerable.sol";

interface INonfungiblePositionManager is IERC721Enumerable {
    struct IncreaseLiquidityParams {
        uint256 tokenId;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint256 amount0Min;
        uint256 amount1Min;
        uint256 deadline;
    }

    struct MintParams {
        address token0;
        address token1;
        uint24 fee;
        int24 tickLower;
        int24 tickUpper;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint256 amount0Min;
        uint256 amount1Min;
        address recipient;
        uint256 deadline;
    }

    struct DecreaseLiquidityParams {
        uint256 tokenId;
        uint128 liquidity;
        uint256 amount0Min;
        uint256 amount1Min;
        uint256 deadline;
    }

    struct CollectParams {
        uint256 tokenId;
        address recipient;
        uint128 amount0Max;
        uint128 amount1Max;
    }

    function increaseLiquidity(IncreaseLiquidityParams memory params)
        external
        payable
        returns (uint256 amount0, uint256 amount1, uint256 liquidity);

    function decreaseLiquidity(DecreaseLiquidityParams calldata params)
        external
        payable
        returns (uint256 amount0, uint256 amount1);

    function mint(MintParams memory params)
        external
        payable
        returns (uint256 tokenId, uint256 amount0, uint256 amount1);

    function collect(CollectParams calldata params)
        external
        payable
        returns (uint256 amount0, uint256 amount1);

    function burn(uint256 tokenId) external payable;

    function positions(uint256 tokenId)
        external
        view
        returns (
            uint96 nonce,
            address operator,
            address token0,
            address token1,
            uint24 fee,
            int24 tickLower,
            int24 tickUpper,
            uint128 liquidity,
            uint256 feeGrowthInside0LastX128,
            uint256 feeGrowthInside1LastX128,
            uint128 tokensOwed0,
            uint128 tokensOwed1
        );
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { IUniswapV3Pool } from
    "contracts/interfaces/external/uniswap/IUniswapV3Pool.sol";
import { INonfungiblePositionManager } from
    "contracts/interfaces/external/uniswap/INonfungiblePositionManager.sol";
import { NftZapIn, NftZapOut } from "contracts/structs/NftZapStructs.sol";
import { SwapParams } from "contracts/structs/LiquidityStructs.sol";
import { Farm } from "contracts/structs/FarmStrategyStructs.sol";

struct NftPosition {
    Farm farm;
    INonfungiblePositionManager nft;
    uint256 tokenId;
}

struct NftIncrease {
    address[] tokensIn;
    uint256[] amountsIn;
    NftZapIn zap;
    bytes extraData;
}

struct NftDeposit {
    Farm farm;
    INonfungiblePositionManager nft;
    NftIncrease increase;
}

struct NftWithdraw {
    NftZapOut zap;
    address[] tokensOut;
    bytes extraData;
}

struct SimpleNftHarvest {
    address[] rewardTokens;
    uint128 amount0Max;
    uint128 amount1Max;
    bytes extraData;
}

struct NftHarvest {
    SimpleNftHarvest harvest;
    SwapParams[] swaps;
    address[] outputTokens;
    address[] sweepTokens;
}

struct NftCompound {
    SimpleNftHarvest harvest;
    NftZapIn zap;
}

struct NftRebalance {
    IUniswapV3Pool pool;
    NftPosition position;
    NftHarvest harvest;
    NftWithdraw withdraw;
    NftIncrease increase;
}

struct NftMove {
    IUniswapV3Pool pool;
    NftPosition position;
    NftHarvest harvest;
    NftWithdraw withdraw;
    NftDeposit deposit;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeTransferLib } from "solmate/utils/SafeTransferLib.sol";
import {
    SwapParams,
    AddLiquidityParams
} from "contracts/structs/LiquidityStructs.sol";
import { ILiquidityConnector } from
    "contracts/interfaces/ILiquidityConnector.sol";
import { ConnectorRegistry } from "contracts/ConnectorRegistry.sol";
import { DelegateModule } from "contracts/modules/DelegateModule.sol";
import { ZapIn, ZapOut } from "contracts/structs/ZapStructs.sol";
import { IZapLib } from "contracts/interfaces/libraries/IZapLib.sol";
import { ISwapLib } from "contracts/interfaces/libraries/ISwapLib.sol";

contract ZapLib is DelegateModule, IZapLib {
    error LiquidityAmountError(); // 0x4d0ab6b4

    ISwapLib public immutable swapLib;
    ConnectorRegistry public immutable connectorRegistry;

    constructor(ConnectorRegistry connectorRegistry_, ISwapLib swapLib_) {
        connectorRegistry = connectorRegistry_;
        swapLib = swapLib_;
    }

    function zapIn(
        ZapIn memory zap
    ) external payable {
        uint256 swapDataLength = zap.swaps.length;
        for (uint256 i; i < swapDataLength;) {
            _delegateTo(
                address(swapLib), abi.encodeCall(ISwapLib.swap, (zap.swaps[i]))
            );
            unchecked {
                i++;
            }
        }

        if (zap.addLiquidityParams.lpToken == address(0)) {
            return;
        }

        bool atLeastOneNonZero = false;

        AddLiquidityParams memory addLiquidityParams = zap.addLiquidityParams;
        uint256 addLiquidityParamsTokensLength =
            addLiquidityParams.tokens.length;
        for (uint256 i; i < addLiquidityParamsTokensLength; i++) {
            if (addLiquidityParams.tokens[i] == address(0)) {
                continue;
            }
            if (addLiquidityParams.desiredAmounts[i] == 0) {
                addLiquidityParams.desiredAmounts[i] = IERC20(
                    addLiquidityParams.tokens[i]
                ).balanceOf(address(this));
            }
            if (addLiquidityParams.desiredAmounts[i] > 0) {
                atLeastOneNonZero = true;
                // In case there is USDT or similar dust approval, revoke it
                SafeTransferLib.safeApprove(
                    addLiquidityParams.tokens[i], addLiquidityParams.router, 0
                );
                SafeTransferLib.safeApprove(
                    addLiquidityParams.tokens[i],
                    addLiquidityParams.router,
                    addLiquidityParams.desiredAmounts[i]
                );
            }
        }

        if (!atLeastOneNonZero) {
            revert LiquidityAmountError();
        }

        address routerConnector =
            connectorRegistry.connectorOf(addLiquidityParams.router);

        _delegateTo(
            routerConnector,
            abi.encodeCall(
                ILiquidityConnector.addLiquidity, (addLiquidityParams)
            )
        );

        for (uint256 i; i < addLiquidityParamsTokensLength;) {
            if (addLiquidityParams.tokens[i] != address(0)) {
                // Revoke any dust approval in case the amount was estimated
                SafeTransferLib.safeApprove(
                    addLiquidityParams.tokens[i], addLiquidityParams.router, 0
                );
            }
            unchecked {
                i++;
            }
        }
    }

    function zapOut(
        ZapOut memory zap
    ) external {
        if (zap.removeLiquidityParams.lpToken != address(0)) {
            if (zap.removeLiquidityParams.lpAmountIn > 0) {
                SafeTransferLib.safeApprove(
                    zap.removeLiquidityParams.lpToken,
                    zap.removeLiquidityParams.router,
                    zap.removeLiquidityParams.lpAmountIn
                );
            }
            address routerConnector =
                connectorRegistry.connectorOf(zap.removeLiquidityParams.router);
            _delegateTo(
                address(routerConnector),
                abi.encodeCall(
                    ILiquidityConnector.removeLiquidity,
                    zap.removeLiquidityParams
                )
            );
        }

        uint256 swapDataLength = zap.swaps.length;
        for (uint256 i; i < swapDataLength;) {
            _delegateTo(
                address(swapLib), abi.encodeCall(ISwapLib.swap, (zap.swaps[i]))
            );
            unchecked {
                i++;
            }
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

struct AddLiquidityParams {
    address router;
    address lpToken;
    address[] tokens;
    uint256[] desiredAmounts;
    uint256[] minAmounts;
    bytes extraData;
}

struct RemoveLiquidityParams {
    address router;
    address lpToken;
    address[] tokens;
    uint256 lpAmountIn;
    uint256[] minAmountsOut;
    bytes extraData;
}

struct SwapParams {
    address router;
    uint256 amountIn;
    uint256 minAmountOut;
    address tokenIn;
    bytes extraData;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../token/ERC721/extensions/IERC721Enumerable.sol";

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

/// @title Pool state that never changes
/// @notice These parameters are fixed for a pool forever, i.e., the methods
/// will always return the same values
interface IUniswapV3PoolImmutables {
    /// @notice The contract that deployed the pool, which must adhere to the
    /// IUniswapV3Factory interface
    /// @return The contract address
    function factory() external view returns (address);

    /// @notice The first of the two tokens of the pool, sorted by address
    /// @return The token contract address
    function token0() external view returns (address);

    /// @notice The second of the two tokens of the pool, sorted by address
    /// @return The token contract address
    function token1() external view returns (address);

    /// @notice The pool's fee in hundredths of a bip, i.e. 1e-6
    /// @return The fee
    function fee() external view returns (uint24);

    /// @notice The pool tick spacing
    /// @dev Ticks can only be used at multiples of this value, minimum of 1 and
    /// always positive
    /// e.g.: a tickSpacing of 3 means ticks can be initialized every 3rd tick,
    /// i.e., ..., -6, -3, 0, 3, 6, ...
    /// This value is an int24 to avoid casting even though it is always
    /// positive.
    /// @return The tick spacing
    function tickSpacing() external view returns (int24);

    /// @notice The maximum amount of position liquidity that can use any tick
    /// in the range
    /// @dev This parameter is enforced per tick to prevent liquidity from
    /// overflowing a uint128 at any point, and
    /// also prevents out-of-range liquidity from being used to prevent adding
    /// in-range liquidity to a pool
    /// @return The max amount of liquidity per tick
    function maxLiquidityPerTick() external view returns (uint128);
}

/// @title Pool state that can change
/// @notice These methods compose the pool's state, and can change with any
/// frequency including multiple times
/// per transaction
interface IUniswapV3PoolState {
    /// @notice The 0th storage slot in the pool stores many values, and is
    /// exposed as a single method to save gas
    /// when accessed externally.
    /// @return sqrtPriceX96 The current price of the pool as a
    /// sqrt(token1/token0) Q64.96 value
    /// @return tick The current tick of the pool, i.e. according to the last
    /// tick transition that was run.
    /// This value may not always be equal to
    /// SqrtTickMath.getTickAtSqrtRatio(sqrtPriceX96) if the price is on a tick
    /// boundary.
    /// @return observationIndex The index of the last oracle observation that
    /// was written,
    /// @return observationCardinality The current maximum number of
    /// observations stored in the pool,
    /// @return observationCardinalityNext The next maximum number of
    /// observations, to be updated when the observation.
    /// @return feeProtocol The protocol fee for both tokens of the pool.
    /// Encoded as two 4 bit values, where the protocol fee of token1 is shifted
    /// 4 bits and the protocol fee of token0
    /// is the lower 4 bits. Used as the denominator of a fraction of the swap
    /// fee, e.g. 4 means 1/4th of the swap fee.
    /// unlocked Whether the pool is currently locked to reentrancy
    function slot0()
        external
        view
        returns (
            uint160 sqrtPriceX96,
            int24 tick,
            uint16 observationIndex,
            uint16 observationCardinality,
            uint16 observationCardinalityNext,
            uint8 feeProtocol,
            bool unlocked
        );

    /// @notice The fee growth as a Q128.128 fees of token0 collected per unit
    /// of liquidity for the entire life of the pool
    /// @dev This value can overflow the uint256
    function feeGrowthGlobal0X128() external view returns (uint256);

    /// @notice The fee growth as a Q128.128 fees of token1 collected per unit
    /// of liquidity for the entire life of the pool
    /// @dev This value can overflow the uint256
    function feeGrowthGlobal1X128() external view returns (uint256);

    /// @notice The amounts of token0 and token1 that are owed to the protocol
    /// @dev Protocol fees will never exceed uint128 max in either token
    function protocolFees()
        external
        view
        returns (uint128 token0, uint128 token1);

    /// @notice The currently in range liquidity available to the pool
    /// @dev This value has no relationship to the total liquidity across all
    /// ticks
    /// @return The liquidity at the current price of the pool
    function liquidity() external view returns (uint128);

    /// @notice Look up information about a specific tick in the pool
    /// @param tick The tick to look up
    /// @return liquidityGross the total amount of position liquidity that uses
    /// the pool either as tick lower or
    /// tick upper
    /// @return liquidityNet how much liquidity changes when the pool price
    /// crosses the tick,
    /// @return feeGrowthOutside0X128 the fee growth on the other side of the
    /// tick from the current tick in token0,
    /// @return feeGrowthOutside1X128 the fee growth on the other side of the
    /// tick from the current tick in token1,
    /// @return tickCumulativeOutside the cumulative tick value on the other
    /// side of the tick from the current tick
    /// @return secondsPerLiquidityOutsideX128 the seconds spent per liquidity
    /// on the other side of the tick from the current tick,
    /// @return secondsOutside the seconds spent on the other side of the tick
    /// from the current tick,
    /// @return initialized Set to true if the tick is initialized, i.e.
    /// liquidityGross is greater than 0, otherwise equal to false.
    /// Outside values can only be used if the tick is initialized, i.e. if
    /// liquidityGross is greater than 0.
    /// In addition, these values are only relative and must be used only in
    /// comparison to previous snapshots for
    /// a specific position.
    function ticks(int24 tick)
        external
        view
        returns (
            uint128 liquidityGross,
            int128 liquidityNet,
            uint256 feeGrowthOutside0X128,
            uint256 feeGrowthOutside1X128,
            int56 tickCumulativeOutside,
            uint160 secondsPerLiquidityOutsideX128,
            uint32 secondsOutside,
            bool initialized
        );

    /// @notice Returns 256 packed tick initialized boolean values. See
    /// TickBitmap for more information
    function tickBitmap(int16 wordPosition) external view returns (uint256);

    /// @notice Returns the information about a position by the position's key
    /// @param key The position's key is a hash of a preimage composed by the
    /// owner, tickLower and tickUpper
    /// @return liquidity The amount of liquidity in the position,
    /// @return feeGrowthInside0LastX128 fee growth of token0 inside the tick
    /// range as of the last mint/burn/poke,
    /// @return feeGrowthInside1LastX128 fee growth of token1 inside the tick
    /// range as of the last mint/burn/poke,
    /// @return tokensOwed0 the computed amount of token0 owed to the position
    /// as of the last mint/burn/poke,
    /// @return tokensOwed1 the computed amount of token1 owed to the position
    /// as of the last mint/burn/poke
    function positions(bytes32 key)
        external
        view
        returns (
            uint128 liquidity,
            uint256 feeGrowthInside0LastX128,
            uint256 feeGrowthInside1LastX128,
            uint128 tokensOwed0,
            uint128 tokensOwed1
        );

    /// @notice Returns data about a specific observation index
    /// @param index The element of the observations array to fetch
    /// @dev You most likely want to use #observe() instead of this method to
    /// get an observation as of some amount of time
    /// ago, rather than at a specific index in the array.
    /// @return blockTimestamp The timestamp of the observation,
    /// @return tickCumulative the tick multiplied by seconds elapsed for the
    /// life of the pool as of the observation timestamp,
    /// @return secondsPerLiquidityCumulativeX128 the seconds per in range
    /// liquidity for the life of the pool as of the observation timestamp,
    /// @return initialized whether the observation has been initialized and the
    /// values are safe to use
    function observations(uint256 index)
        external
        view
        returns (
            uint32 blockTimestamp,
            int56 tickCumulative,
            uint160 secondsPerLiquidityCumulativeX128,
            bool initialized
        );
}

interface IUniswapV3Pool is IUniswapV3PoolImmutables, IUniswapV3PoolState {
    function flash(
        address recipient,
        uint256 amount0,
        uint256 amount1,
        bytes calldata data
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import { SwapParams } from "contracts/structs/LiquidityStructs.sol";
import {
    NftAddLiquidity,
    NftRemoveLiquidity
} from "contracts/structs/NftLiquidityStructs.sol";

struct NftZapIn {
    SwapParams[] swaps;
    NftAddLiquidity addLiquidityParams;
}

struct NftZapOut {
    NftRemoveLiquidity removeLiquidityParams;
    SwapParams[] swaps;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {
    AddLiquidityParams,
    RemoveLiquidityParams,
    SwapParams
} from "contracts/structs/LiquidityStructs.sol";

interface ILiquidityConnector {
    error InvalidPrice();

    function addLiquidity(
        AddLiquidityParams memory addLiquidityParams
    ) external payable;

    function removeLiquidity(
        RemoveLiquidityParams memory removeLiquidityParams
    ) external;

    function swapExactTokensForTokens(
        SwapParams memory swap
    ) external payable;

    function swapExactETHForTokens(
        SwapParams memory swap
    ) external payable;

    function getPoolPrice(
        address lpToken,
        uint256 baseTokenIndex,
        uint256 quoteTokenIndex
    ) external view returns (uint256);

    function getReserves(
        address lpToken
    ) external view returns (uint256[] memory reserves);

    function getTokens(
        address lpToken
    ) external view returns (address[] memory tokens);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

contract DelegateModule {
    function _delegateTo(
        address to,
        bytes memory data
    ) internal returns (bytes memory) {
        (bool success, bytes memory result) = to.delegatecall(data);

        if (!success) {
            if (result.length == 0) revert();
            assembly {
                revert(add(32, result), mload(result))
            }
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {
    SwapParams,
    AddLiquidityParams,
    RemoveLiquidityParams
} from "contracts/structs/LiquidityStructs.sol";

struct ZapIn {
    SwapParams[] swaps;
    AddLiquidityParams addLiquidityParams;
}

struct ZapOut {
    RemoveLiquidityParams removeLiquidityParams;
    SwapParams[] swaps;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { ZapIn, ZapOut } from "contracts/structs/ZapStructs.sol";

interface IZapLib {
    function zapIn(
        ZapIn memory zap
    ) external payable;

    function zapOut(
        ZapOut memory zap
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { SwapParams } from "contracts/structs/LiquidityStructs.sol";

interface ISwapLib {
    function swap(
        SwapParams memory swap
    ) external payable;

    function swapMultiple(
        SwapParams[] memory swaps
    ) external payable;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import { INonfungiblePositionManager } from
    "contracts/interfaces/external/uniswap/INonfungiblePositionManager.sol";

struct Pool {
    address token0;
    address token1;
    uint24 fee;
}

struct NftAddLiquidity {
    INonfungiblePositionManager nft;
    uint256 tokenId;
    Pool pool;
    int24 tickLower;
    int24 tickUpper;
    uint256 amount0Desired;
    uint256 amount1Desired;
    uint256 amount0Min;
    uint256 amount1Min;
    bytes extraData;
}

struct NftRemoveLiquidity {
    INonfungiblePositionManager nft;
    uint256 tokenId;
    uint128 liquidity;
    uint256 amount0Min; // For decreasing
    uint256 amount1Min;
    uint128 amount0Max; // For collecting
    uint128 amount1Max;
    bytes extraData;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

{
  "remappings": [
    "solmate/=lib/solmate/src/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "@morpho-blue/=lib/morpho-blue/src/",
    "ds-test/=lib/solmate/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "morpho-blue/=lib/morpho-blue/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": false,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IGaugeRegistryVoter","name":"voter_","type":"address"},{"internalType":"contract ShadowV2GaugeConnector","name":"shadowV2GaugeConnector_","type":"address"},{"internalType":"contract ShadowV3GaugeConnector","name":"shadowV3GaugeConnector_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"connectorOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"shadowV2GaugeConnector","outputs":[{"internalType":"contract ShadowV2GaugeConnector","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"shadowV3GaugeConnector","outputs":[{"internalType":"contract ShadowV3GaugeConnector","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"voter","outputs":[{"internalType":"contract IGaugeRegistryVoter","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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0000000000000000000000009f59398d0a397b2eeb8a6123a6c7295cb0b0062d00000000000000000000000054d81f06f7ee744a46048d0edd9983e69994eacf00000000000000000000000076fb09f9077a6e0deb4edde76f9e36dd625dd487

-----Decoded View---------------
Arg [0] : voter_ (address): 0x9F59398D0a397b2EEB8a6123a6c7295cB0b0062D
Arg [1] : shadowV2GaugeConnector_ (address): 0x54D81F06F7eE744A46048D0EDD9983E69994eACF
Arg [2] : shadowV3GaugeConnector_ (address): 0x76fb09f9077A6e0DEB4edDe76f9E36dd625Dd487

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000009f59398d0a397b2eeb8a6123a6c7295cb0b0062d
Arg [1] : 00000000000000000000000054d81f06f7ee744a46048d0edd9983e69994eacf
Arg [2] : 00000000000000000000000076fb09f9077a6e0deb4edde76f9e36dd625dd487