// File: contracts/UnipilotMigrator.sol



// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity =0.7.6;
pragma abicoder v2;

import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";

import "@uniswap/v3-periphery/contracts/interfaces/INonfungiblePositionManager.sol";
import "@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol";
import "@uniswap/v3-core/contracts/libraries/FullMath.sol";

import "./interfaces/IUnipilotVault.sol";
import "./interfaces/external/IWETH9.sol";
import "./interfaces/IUnipilotMigrator.sol";
import "./libraries/TransferHelper.sol";
import "./interfaces/external/IUniswapLiquidityManager.sol";
import "./interfaces/popsicle-interfaces/IPopsicleV3Optimizer.sol";
import "./interfaces/visor-interfaces/IVault.sol";
import "./interfaces/lixir-interfaces/ILixirVaultETH.sol";
import "./interfaces/external/IUnipilot.sol";
import "./base/PeripheryPayments.sol";

/// @title Uniswap V2, V3, Sushiswap, Visor, Lixir, Popsicle Liquidity Migrator
contract UnipilotMigrator is
    IUnipilotMigrator,
    PeripheryPayments,
    IERC721Receiver,
    Context
{
    using SafeMath for uint256;
    using SafeERC20 for IERC20;

    address private immutable ulm;
    address private immutable positionManager;

    IUnipilot private unipilot;

    constructor(
        address _positionManager,
        address _unipilot,
        address _ulm
    ) {
        positionManager = _positionManager;
        ulm = _ulm;

        unipilot = IUnipilot(_unipilot);
    }

    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external override returns (bytes4) {
        return IERC721Receiver(0).onERC721Received.selector;
    }

    function migrateUnipilotLiquididty(MigrateV3Params memory params) external {
        address caller = _msgSender();
        IUniswapLiquidityManager.Position
            memory userPosition = IUniswapLiquidityManager(ulm).userPositions(
                params.tokenId
            );

        IExchangeManager.WithdrawParams memory withdrawParam = IExchangeManager
            .WithdrawParams({
                pilotToken: false,
                wethToken: true,
                exchangeManagerAddress: ulm,
                liquidity: userPosition.liquidity,
                tokenId: params.tokenId
            });

        unipilot.safeTransferFrom(caller, address(this), params.tokenId);

        unipilot.withdraw(withdrawParam, abi.encode(address(this)));

        uint256 amount0 = _balanceOf(params.token0, address(this));
        uint256 amount1 = _balanceOf(params.token1, address(this));

        require(amount0 > 0 && amount1 > 0, "IF");

        _tokenApproval(params.token0, params.vault, amount0);
        _tokenApproval(params.token1, params.vault, amount1);

        (params.token0, amount0, params.token1, amount1) = _sortTokenAmount(
            params.token0,
            params.token1,
            amount0,
            amount1
        );

        (
            uint256 amount0Unipilot,
            uint256 amount1Unipilot
        ) = _addLiquidityUnipilot(params.vault, amount0, amount1, caller);

        _refundRemainingLiquidiy(
            RefundLiquidityParams({
                vault: params.vault,
                token0: params.token0,
                token1: params.token1,
                amount0Unipilot: amount0Unipilot,
                amount1Unipilot: amount1Unipilot,
                amount0Recieved: amount0,
                amount1Recieved: amount1,
                amount0ToMigrate: amount0,
                amount1ToMigrate: amount1,
                refundAsETH: params.refundAsETH
            })
        );

        emit LiquidityMigratedFromV3(
            true,
            params.vault,
            caller,
            amount0Unipilot,
            amount1Unipilot
        );
    }

    function migrateV2Liquidity(MigrateV2Params calldata params) external {
        require(
            params.percentageToMigrate > 0 && params.percentageToMigrate <= 100,
            "IPA"
        );

        IUniswapV2Pair(params.pair).transferFrom(
            _msgSender(),
            params.pair,
            params.liquidityToMigrate
        );

        (uint256 amount0V2, uint256 amount1V2) = IUniswapV2Pair(params.pair)
            .burn(address(this));

        uint256 amount0ToMigrate = FullMath.mulDiv(
            amount0V2,
            params.percentageToMigrate,
            100
        );

        uint256 amount1ToMigrate = FullMath.mulDiv(
            amount1V2,
            params.percentageToMigrate,
            100
        );

        _tokenApproval(params.token0, params.vault, amount0ToMigrate);

        _tokenApproval(params.token1, params.vault, amount1ToMigrate);

        (uint256 amount0V3, uint256 amount1V3) = _addLiquidityUnipilot(
            params.vault,
            amount0ToMigrate,
            amount1ToMigrate,
            _msgSender()
        );

        _refundRemainingLiquidiy(
            RefundLiquidityParams({
                vault: params.vault,
                token0: params.token0,
                token1: params.token1,
                amount0Unipilot: amount0V3,
                amount1Unipilot: amount1V3,
                amount0Recieved: amount0V2,
                amount1Recieved: amount1V2,
                amount0ToMigrate: amount0ToMigrate,
                amount1ToMigrate: amount1ToMigrate,
                refundAsETH: params.refundAsETH
            })
        );

        emit LiquidityMigratedFromV2(
            params.pair,
            params.vault,
            _msgSender(),
            amount0V3,
            amount1V3
        );
    }

    function migrateV3Liquidity(MigrateV3Params calldata params) external {
        INonfungiblePositionManager periphery = INonfungiblePositionManager(
            positionManager
        );

        periphery.safeTransferFrom(_msgSender(), address(this), params.tokenId);

        (
            ,
            ,
            ,
            ,
            ,
            ,
            ,
            uint128 liquidityV3,
            ,
            ,
            ,

        ) = INonfungiblePositionManager(positionManager).positions(
                params.tokenId
            );

        periphery.decreaseLiquidity(
            INonfungiblePositionManager.DecreaseLiquidityParams({
                tokenId: params.tokenId,
                liquidity: liquidityV3,
                amount0Min: 0,
                amount1Min: 0,
                deadline: block.timestamp + 120
            })
        );

        // returns the total amount of Liquidity with collected fees to user
        (uint256 amount0V3, uint256 amount1V3) = periphery.collect(
            INonfungiblePositionManager.CollectParams({
                tokenId: params.tokenId,
                recipient: address(this),
                amount0Max: type(uint128).max,
                amount1Max: type(uint128).max
            })
        );

        // approve the Unipilot up to the maximum token amounts
        _tokenApproval(params.token0, params.vault, amount0V3);
        _tokenApproval(params.token1, params.vault, amount1V3);

        (
            uint256 amount0Unipilot,
            uint256 amount1Unipilot
        ) = _addLiquidityUnipilot(
                params.vault,
                amount0V3,
                amount1V3,
                _msgSender()
            );

        _refundRemainingLiquidiy(
            RefundLiquidityParams({
                vault: params.vault,
                token0: params.token0,
                token1: params.token1,
                amount0Unipilot: amount0Unipilot,
                amount1Unipilot: amount1Unipilot,
                amount0Recieved: amount0V3,
                amount1Recieved: amount1V3,
                amount0ToMigrate: amount0V3,
                amount1ToMigrate: amount1V3,
                refundAsETH: params.refundAsETH
            })
        );

        periphery.burn(params.tokenId);

        emit LiquidityMigratedFromV3(
            false,
            params.vault,
            _msgSender(),
            amount0Unipilot,
            amount1Unipilot
        );
    }

    function migrateVisorLiquidity(MigrateV2Params memory params) external {
        require(
            params.percentageToMigrate > 0 && params.percentageToMigrate <= 100,
            "IPA"
        );

        IERC20(params.pair).safeTransferFrom(
            _msgSender(),
            address(this),
            params.liquidityToMigrate
        );

        (uint256 amount0V2, uint256 amount1V2) = IVault(params.pair).withdraw(
            params.liquidityToMigrate,
            address(this),
            address(this)
        );

        uint256 amount0ToMigrate = FullMath.mulDiv(
            amount0V2,
            params.percentageToMigrate,
            100
        );

        uint256 amount1ToMigrate = FullMath.mulDiv(
            amount1V2,
            params.percentageToMigrate,
            100
        );

        _tokenApproval(params.token0, params.vault, amount0ToMigrate);
        _tokenApproval(params.token1, params.vault, amount1ToMigrate);

        (
            params.token0,
            amount0ToMigrate,
            params.token1,
            amount1ToMigrate
        ) = _sortTokenAmount(
            params.token0,
            params.token1,
            amount0ToMigrate,
            amount1ToMigrate
        );

        (uint256 amount0V3, uint256 amount1V3) = _addLiquidityUnipilot(
            params.vault,
            amount0ToMigrate,
            amount1ToMigrate,
            _msgSender()
        );

        _refundRemainingLiquidiy(
            RefundLiquidityParams({
                vault: params.vault,
                token0: params.token0,
                token1: params.token1,
                amount0Unipilot: amount0V3,
                amount1Unipilot: amount1V3,
                amount0Recieved: amount0V2,
                amount1Recieved: amount1V2,
                amount0ToMigrate: amount0ToMigrate,
                amount1ToMigrate: amount1ToMigrate,
                refundAsETH: params.refundAsETH
            })
        );

        emit LiquidityMigratedFromV2(
            params.pair,
            params.vault,
            _msgSender(),
            amount0V3,
            amount1V3
        );
    }

    function migrateLixirLiquidity(MigrateV2Params memory params) external {
        require(
            params.percentageToMigrate > 0 && params.percentageToMigrate <= 100,
            "IPA"
        );

        (uint256 amount0V2, uint256 amount1V2) = ILixirVaultETH(
            payable(address(params.pair))
        ).withdrawETHFrom(
                _msgSender(),
                params.liquidityToMigrate,
                0,
                0,
                address(this),
                block.timestamp + 120
            );

        (
            address alt,
            uint256 altAmountReceived,
            address weth,
            uint256 wethAmountReceived
        ) = _sortWethAmount(params.token0, params.token1, amount0V2, amount1V2);

        IWETH9(WETH).deposit{ value: wethAmountReceived }();

        uint256 wethAmountToMigrate = FullMath.mulDiv(
            wethAmountReceived,
            params.percentageToMigrate,
            100
        );

        uint256 altAmountToMigrate = FullMath.mulDiv(
            altAmountReceived,
            params.percentageToMigrate,
            100
        );

        _tokenApproval(alt, params.vault, altAmountToMigrate);
        _tokenApproval(weth, params.vault, wethAmountToMigrate);

        (params.token0, amount0V2, params.token1, amount1V2) = _sortTokenAmount(
            alt,
            weth,
            altAmountReceived,
            wethAmountReceived
        );

        (uint256 amount0V3, uint256 amount1V3) = _addLiquidityUnipilot(
            params.vault,
            amount0V2,
            amount1V2,
            _msgSender()
        );

        _refundRemainingLiquidiy(
            RefundLiquidityParams({
                vault: params.vault,
                token0: alt,
                token1: weth,
                amount0Unipilot: amount0V3,
                amount1Unipilot: amount1V3,
                amount0Recieved: altAmountReceived,
                amount1Recieved: wethAmountReceived,
                amount0ToMigrate: altAmountToMigrate,
                amount1ToMigrate: wethAmountToMigrate,
                refundAsETH: params.refundAsETH
            })
        );

        emit LiquidityMigratedFromV2(
            params.pair,
            params.vault,
            _msgSender(),
            amount0V3,
            amount1V3
        );
    }

    function migratePopsicleLiquidity(MigrateV2Params memory params) external {
        require(
            params.percentageToMigrate > 0 && params.percentageToMigrate <= 100,
            "IPA"
        );

        IERC20(params.pair).transferFrom(
            _msgSender(),
            address(this),
            params.liquidityToMigrate
        );

        (uint256 amount0, uint256 amount1) = IPopsicleV3Optimizer(params.pair)
            .withdraw(params.liquidityToMigrate, address(this));

        uint256 amount0ToMigrate = FullMath.mulDiv(
            amount0,
            params.percentageToMigrate,
            100
        );

        uint256 amount1ToMigrate = FullMath.mulDiv(
            amount1,
            params.percentageToMigrate,
            100
        );

        _tokenApproval(params.token0, params.vault, amount0ToMigrate);
        _tokenApproval(params.token1, params.vault, amount1ToMigrate);

        (
            params.token0,
            amount0ToMigrate,
            params.token1,
            amount1ToMigrate
        ) = _sortTokenAmount(
            params.token0,
            params.token1,
            amount0ToMigrate,
            amount1ToMigrate
        );

        (uint256 amount0V3, uint256 amount1V3) = _addLiquidityUnipilot(
            params.vault,
            amount0ToMigrate,
            amount1ToMigrate,
            _msgSender()
        );

        _refundRemainingLiquidiy(
            RefundLiquidityParams({
                vault: params.vault,
                token0: params.token0,
                token1: params.token1,
                amount0Unipilot: amount0V3,
                amount1Unipilot: amount1V3,
                amount0Recieved: amount0,
                amount1Recieved: amount1,
                amount0ToMigrate: amount0ToMigrate,
                amount1ToMigrate: amount1ToMigrate,
                refundAsETH: params.refundAsETH
            })
        );

        emit LiquidityMigratedFromV2(
            params.pair,
            params.vault,
            _msgSender(),
            amount0V3,
            amount1V3
        );
    }

    function _refundRemainingLiquidiy(RefundLiquidityParams memory params)
        private
    {
        if (params.amount0Unipilot < params.amount0Recieved) {
            if (params.amount0Unipilot < params.amount0ToMigrate) {
                TransferHelper.safeApprove(params.token0, params.vault, 0);
            }
            if (params.refundAsETH && params.token0 == WETH) {
                unwrapWETH9(0, _msgSender());
            } else {
                sweepToken(params.token0, 0, _msgSender());
            }
        }
        if (params.amount1Unipilot < params.amount1Recieved) {
            if (params.amount1Unipilot < params.amount1ToMigrate) {
                TransferHelper.safeApprove(params.token1, params.vault, 0);
            }
            if (params.refundAsETH && params.token1 == WETH) {
                unwrapWETH9(0, _msgSender());
            } else {
                sweepToken(params.token1, 0, _msgSender());
            }
        }
    }

    function _addLiquidityUnipilot(
        address vault,
        uint256 amount0,
        uint256 amount1,
        address recipient
    ) private returns (uint256 despositedAmount0, uint256 despositedAmount1) {
        (, despositedAmount0, despositedAmount1) = IUnipilotVault(vault)
            .deposit(amount0, amount1, recipient);
    }

    function _sortWethAmount(
        address _token0,
        address _token1,
        uint256 _amount0,
        uint256 _amount1
    )
        private
        view
        returns (
            address tokenAlt,
            uint256 altAmount,
            address tokenWeth,
            uint256 wethAmount
        )
    {
        (
            address tokenA,
            address tokenB,
            uint256 amountA,
            uint256 amountB
        ) = _token0 == WETH
                ? (_token0, _token1, _amount0, _amount1)
                : (_token0, _token1, _amount1, _amount0);

        (tokenAlt, altAmount, tokenWeth, wethAmount) = tokenA == WETH
            ? (tokenB, amountB, tokenA, amountA)
            : (tokenA, amountA, tokenB, amountB);
    }

    function _sortTokenAmount(
        address _token0,
        address _token1,
        uint256 _amount0,
        uint256 _amount1
    )
        private
        view
        returns (
            address tokenAlt1,
            uint256 altAmount1,
            address tokenAlt2,
            uint256 altAmount2
        )
    {
        (tokenAlt1, altAmount1, tokenAlt2, altAmount2) = _token0 < _token1
            ? (_token0, _amount0, _token1, _amount1)
            : (_token1, _amount1, _token0, _amount0);
    }

    function _tokenApproval(
        address _token,
        address _vault,
        uint256 _amount
    ) private {
        TransferHelper.safeApprove(_token, _vault, _amount);
    }

    function _balanceOf(address _token, address _caller)
        private
        view
        returns (uint256)
    {
        return IERC20(_token).balanceOf(_caller);
    }
}

// File: @openzeppelin/contracts/utils/Context.sol



// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN 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 payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// File: @openzeppelin/contracts/token/ERC20/SafeERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "./IERC20.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4);
}

// File: @uniswap/v3-periphery/contracts/interfaces/INonfungiblePositionManager.sol



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

import '@openzeppelin/contracts/token/ERC721/IERC721Metadata.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol';

import './IPoolInitializer.sol';
import './IERC721Permit.sol';
import './IPeripheryPayments.sol';
import './IPeripheryImmutableState.sol';
import '../libraries/PoolAddress.sol';

/// @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 INonfungiblePositionManager is
    IPoolInitializer,
    IPeripheryPayments,
    IPeripheryImmutableState,
    IERC721Metadata,
    IERC721Enumerable,
    IERC721Permit
{
    /// @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 nonce The nonce for permits
    /// @return operator The address that is approved for spending
    /// @return token0 The address of the token0 for a specific pool
    /// @return token1 The address of the token1 for a specific pool
    /// @return fee The fee associated with 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 (
            uint96 nonce,
            address operator,
            address token0,
            address token1,
            uint24 fee,
            int24 tickLower,
            int24 tickUpper,
            uint128 liquidity,
            uint256 feeGrowthInside0LastX128,
            uint256 feeGrowthInside1LastX128,
            uint128 tokensOwed0,
            uint128 tokensOwed1
        );

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

// File: @uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol



pragma solidity >=0.5.0;

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}

// File: @uniswap/v3-core/contracts/libraries/FullMath.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.4.0;

/// @title Contains 512-bit math functions
/// @notice Facilitates multiplication and division that can have overflow of an intermediate value without any loss of precision
/// @dev Handles "phantom overflow" i.e., allows multiplication and division where an intermediate value overflows 256 bits
library FullMath {
    /// @notice Calculates floor(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
    /// @param a The multiplicand
    /// @param b The multiplier
    /// @param denominator The divisor
    /// @return result The 256-bit result
    /// @dev Credit to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv
    function mulDiv(
        uint256 a,
        uint256 b,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        // 512-bit multiply [prod1 prod0] = a * b
        // Compute the product mod 2**256 and mod 2**256 - 1
        // then 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; // Least significant 256 bits of the product
        uint256 prod1; // Most significant 256 bits of the product
        assembly {
            let mm := mulmod(a, b, not(0))
            prod0 := mul(a, b)
            prod1 := sub(sub(mm, prod0), lt(mm, prod0))
        }

        // Handle non-overflow cases, 256 by 256 division
        if (prod1 == 0) {
            require(denominator > 0);
            assembly {
                result := div(prod0, denominator)
            }
            return result;
        }

        // Make sure the result is less than 2**256.
        // Also prevents denominator == 0
        require(denominator > prod1);

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

        // Make division exact by subtracting the remainder from [prod1 prod0]
        // Compute remainder using mulmod
        uint256 remainder;
        assembly {
            remainder := mulmod(a, b, denominator)
        }
        // Subtract 256 bit number from 512 bit number
        assembly {
            prod1 := sub(prod1, gt(remainder, prod0))
            prod0 := sub(prod0, remainder)
        }

        // Factor powers of two out of denominator
        // Compute largest power of two divisor of denominator.
        // Always >= 1.
        uint256 twos = -denominator & denominator;
        // Divide denominator by power of two
        assembly {
            denominator := div(denominator, twos)
        }

        // Divide [prod1 prod0] by the factors of two
        assembly {
            prod0 := div(prod0, twos)
        }
        // Shift in bits from prod1 into prod0. For this we need
        // to flip `twos` such that it is 2**256 / twos.
        // If twos is zero, then it becomes one
        assembly {
            twos := add(div(sub(0, twos), twos), 1)
        }
        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
        // correct for four bits. That is, denominator * inv = 1 mod 2**4
        uint256 inv = (3 * denominator) ^ 2;
        // Now use 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.
        inv *= 2 - denominator * inv; // inverse mod 2**8
        inv *= 2 - denominator * inv; // inverse mod 2**16
        inv *= 2 - denominator * inv; // inverse mod 2**32
        inv *= 2 - denominator * inv; // inverse mod 2**64
        inv *= 2 - denominator * inv; // inverse mod 2**128
        inv *= 2 - denominator * inv; // 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 precoditions 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 * inv;
        return result;
    }

    /// @notice Calculates ceil(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
    /// @param a The multiplicand
    /// @param b The multiplier
    /// @param denominator The divisor
    /// @return result The 256-bit result
    function mulDivRoundingUp(
        uint256 a,
        uint256 b,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        result = mulDiv(a, b, denominator);
        if (mulmod(a, b, denominator) > 0) {
            require(result < type(uint256).max);
            result++;
        }
    }
}

// File: contracts/interfaces/IUnipilotVault.sol



//SPDX-License-Identifier: MIT
pragma solidity ^0.7.6;

interface IUnipilotVault {
    struct ReadjustVars {
        uint256 fees0;
        uint256 fees1;
        int24 currentTick;
        int24 tickLower;
        int24 tickUpper;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint128 liquidity;
        uint256 amount0;
        uint256 amount1;
        bool zeroForOne;
        int256 amountSpecified;
        uint160 exactSqrtPriceImpact;
        uint160 sqrtPriceLimitX96;
    }

    struct TicksData {
        int24 baseTickLower;
        int24 baseTickUpper;
        int24 rangeTickLower;
        int24 rangeTickUpper;
    }

    struct Tick {
        int24 baseTickLower;
        int24 baseTickUpper;
        int24 bidTickLower;
        int24 bidTickUpper;
        int24 rangeTickLower;
        int24 rangeTickUpper;
    }

    struct Cache {
        uint256 totalSupply;
        uint256 liquidityShare;
    }

    event Deposit(
        address indexed depositor,
        address indexed recipient,
        uint256 amount0,
        uint256 amount1,
        uint256 lpShares
    );

    event FeesSnapshot(bool isReadjustLiquidity, uint256 fees0, uint256 fees1);

    event Withdraw(
        address indexed recipient,
        uint256 shares,
        uint256 amount0,
        uint256 amount1
    );

    event PullLiquidity(
        uint256 reserves0,
        uint256 reserves1,
        uint256 fees0,
        uint256 fees1
    );

    event CompoundFees(uint256 amount0, uint256 amount1);

    /// @notice Deposits tokens in proportion to the Unipilot's current holdings & mints them
    /// `Unipilot`s LP token.
    /// @param amount0Desired Max amount of token0 to deposit
    /// @param amount1Desired Max amount of token1 to deposit
    /// @param recipient Recipient of shares
    /// @return lpShares Number of shares minted
    /// @return amount0 Amount of token0 deposited in vault
    /// @return amount1 Amount of token1 deposited in vault
    function deposit(
        uint256 amount0Desired,
        uint256 amount1Desired,
        address recipient
    )
        external
        payable
        returns (
            uint256 lpShares,
            uint256 amount0,
            uint256 amount1
        );

    /// @notice Withdraws the desired shares from the vault with accumulated user fees and transfers to recipient.
    /// @param recipient Recipient of tokens
    /// @param refundAsETH whether to recieve in WETH or ETH (only valid for WETH/ALT pairs)
    /// @return amount0 Amount of token0 sent to recipient
    /// @return amount1 Amount of token1 sent to recipient
    function withdraw(
        uint256 liquidity,
        address recipient,
        bool refundAsETH
    ) external returns (uint256 amount0, uint256 amount1);

    /// @notice Pull in tokens from sender. Called to `msg.sender` after minting liquidity to a position from IUniswapV3Pool#mint.
    /// @dev In the implementation you must pay to the pool for the minted liquidity.
    /// @param amount0Owed The amount of token0 due to the pool for the minted liquidity
    /// @param amount1Owed The amount of token1 due to the pool for the minted liquidity
    /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#mint call
    function uniswapV3MintCallback(
        uint256 amount0Owed,
        uint256 amount1Owed,
        bytes calldata data
    ) external;

    /// @notice Called to `msg.sender` after minting swaping from IUniswapV3Pool#swap.
    /// @dev In the implementation you must pay to the pool for swap.
    /// @param amount0Delta The amount of token0 due to the pool for the swap
    /// @param amount1Delta The amount of token1 due to the pool for the swap
    /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call
    function uniswapV3SwapCallback(
        int256 amount0Delta,
        int256 amount1Delta,
        bytes calldata data
    ) external;

    /// @notice Burns all position(s), collects any fees accrued and updates Unipilot's position(s)
    /// @dev mints all amounts to this position(s) (including earned fees)
    /// @dev For active vaults it can be called by the governance or operator,
    /// swaps imbalanced token and add all liquidity in base position.
    /// @dev For passive vaults it can be called by any user.
    /// Two positions are placed - a base position and a limit position. The base
    /// position is placed first with as much liquidity as possible. This position
    /// should use up all of one token, leaving only the other one. This excess
    /// amount is then placed as a single-sided bid or ask position.
    function readjustLiquidity() external;
}

// File: contracts/interfaces/external/IWETH9.sol



// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity =0.7.6;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @title Interface for WETH9
interface IWETH9 is IERC20 {
    /// @notice Deposit ether to get wrapped ether
    function deposit() external payable;

    /// @notice Withdraw wrapped ether to get ether
    function withdraw(uint256) external;
}

// File: contracts/interfaces/IUnipilotMigrator.sol



//SPDX-License-Identifier: MIT
pragma solidity ^0.7.6;

import "./external/IExchangeManager.sol";

/// @title The interface for the Unipilot Factory
interface IUnipilotMigrator {
    struct MigrateV3Params {
        address vault;
        address token0;
        address token1;
        uint256 tokenId;
        bool refundAsETH;
    }

    struct MigrateV2Params {
        address pair; // the Uniswap v2-compatible pair
        address vault;
        address token0;
        address token1;
        uint8 percentageToMigrate; // represented as a numerator over 100
        uint256 liquidityToMigrate;
        bool refundAsETH;
    }

    struct RefundLiquidityParams {
        address vault;
        address token0;
        address token1;
        uint256 amount0Unipilot;
        uint256 amount1Unipilot;
        uint256 amount0Recieved;
        uint256 amount1Recieved;
        uint256 amount0ToMigrate;
        uint256 amount1ToMigrate;
        bool refundAsETH;
    }

    event LiquidityMigratedFromV2(
        address pool,
        address vault,
        address owner,
        uint256 amount0,
        uint256 amount1
    );

    event LiquidityMigratedFromV3(
        bool migrateFromUnipilot,
        address vault,
        address owner,
        uint256 amount0,
        uint256 amount1
    );
}

// File: contracts/libraries/TransferHelper.sol



// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.6.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

//import "../interfaces/external/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");
    }
}

// File: contracts/interfaces/external/IUniswapLiquidityManager.sol



// SPDX-License-Identifier: MIT

pragma solidity >=0.7.6;
pragma abicoder v2;

import "./IULMEvents.sol";

interface IUniswapLiquidityManager is IULMEvents {
    struct LiquidityPosition {
        // base order position
        int24 baseTickLower;
        int24 baseTickUpper;
        uint128 baseLiquidity;
        // range order position
        int24 rangeTickLower;
        int24 rangeTickUpper;
        uint128 rangeLiquidity;
        // accumulated fees
        uint256 fees0;
        uint256 fees1;
        uint256 feeGrowthGlobal0;
        uint256 feeGrowthGlobal1;
        // total liquidity
        uint256 totalLiquidity;
        // pool premiums
        bool feesInPilot;
        // oracle address for tokens to fetch prices from
        address oracle0;
        address oracle1;
        // rebase
        uint256 timestamp;
        uint8 counter;
        bool status;
        bool managed;
    }

    struct Position {
        uint256 nonce;
        address pool;
        uint256 liquidity;
        uint256 feeGrowth0;
        uint256 feeGrowth1;
        uint256 tokensOwed0;
        uint256 tokensOwed1;
    }

    struct ReadjustVars {
        bool zeroForOne;
        address poolAddress;
        int24 currentTick;
        uint160 sqrtPriceX96;
        uint160 exactSqrtPriceImpact;
        uint160 sqrtPriceLimitX96;
        uint128 baseLiquidity;
        uint256 amount0;
        uint256 amount1;
        uint256 amountIn;
        uint256 amount0Added;
        uint256 amount1Added;
        uint256 amount0Range;
        uint256 amount1Range;
        uint256 currentTimestamp;
        uint256 gasUsed;
        uint256 pilotAmount;
    }

    struct VarsEmerency {
        address token;
        address pool;
        int24 tickLower;
        int24 tickUpper;
        uint128 liquidity;
    }

    struct WithdrawVars {
        address recipient;
        uint256 amount0Removed;
        uint256 amount1Removed;
        uint256 userAmount0;
        uint256 userAmount1;
        uint256 pilotAmount;
    }

    struct WithdrawTokenOwedParams {
        address token0;
        address token1;
        uint256 tokensOwed0;
        uint256 tokensOwed1;
    }

    struct MintCallbackData {
        address payer;
        address token0;
        address token1;
        uint24 fee;
    }

    struct UnipilotProtocolDetails {
        uint8 swapPercentage;
        uint24 swapPriceThreshold;
        uint256 premium;
        uint256 gasPriceLimit;
        uint256 userPilotPercentage;
        uint256 feesPercentageIndexFund;
        uint24 readjustFrequencyTime;
        uint16 poolCardinalityDesired;
        address pilotWethPair;
        address oracle;
        address indexFund; // 10%
        address uniStrategy;
        address unipilot;
    }

    struct SwapCallbackData {
        address token0;
        address token1;
        uint24 fee;
    }

    struct AddLiquidityParams {
        address token0;
        address token1;
        uint24 fee;
        int24 tickLower;
        int24 tickUpper;
        uint256 amount0Desired;
        uint256 amount1Desired;
    }

    struct RemoveLiquidity {
        uint256 amount0;
        uint256 amount1;
        uint128 liquidityRemoved;
        uint256 feesCollected0;
        uint256 feesCollected1;
    }

    struct Tick {
        int24 baseTickLower;
        int24 baseTickUpper;
        int24 bidTickLower;
        int24 bidTickUpper;
        int24 rangeTickLower;
        int24 rangeTickUpper;
    }

    struct TokenDetails {
        address token0;
        address token1;
        uint24 fee;
        int24 currentTick;
        uint16 poolCardinality;
        uint128 baseLiquidity;
        uint128 bidLiquidity;
        uint128 rangeLiquidity;
        uint256 amount0Added;
        uint256 amount1Added;
    }

    struct DistributeFeesParams {
        bool pilotToken;
        bool wethToken;
        address pool;
        address recipient;
        uint256 tokenId;
        uint256 liquidity;
        uint256 amount0Removed;
        uint256 amount1Removed;
    }

    struct AddLiquidityManagerParams {
        address pool;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint256 shares;
    }

    struct DepositVars {
        uint24 fee;
        address pool;
        uint256 amount0Base;
        uint256 amount1Base;
        uint256 amount0Range;
        uint256 amount1Range;
    }

    struct RangeLiquidityVars {
        address token0;
        address token1;
        uint24 fee;
        uint128 rangeLiquidity;
        uint256 amount0Range;
        uint256 amount1Range;
    }

    struct IncreaseParams {
        address token0;
        address token1;
        uint24 fee;
        int24 currentTick;
        uint128 baseLiquidity;
        uint256 baseAmount0;
        uint256 baseAmount1;
        uint128 rangeLiquidity;
        uint256 rangeAmount0;
        uint256 rangeAmount1;
    }

    /// @notice Pull in tokens from sender. Called to `msg.sender` after minting liquidity to a position from IUniswapV3Pool#mint.
    /// @dev In the implementation you must pay to the pool for the minted liquidity.
    /// @param amount0Owed The amount of token0 due to the pool for the minted liquidity
    /// @param amount1Owed The amount of token1 due to the pool for the minted liquidity
    /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#mint call
    function uniswapV3MintCallback(
        uint256 amount0Owed,
        uint256 amount1Owed,
        bytes calldata data
    ) external;

    /// @notice Called to `msg.sender` after minting swaping from IUniswapV3Pool#swap.
    /// @dev In the implementation you must pay to the pool for swap.
    /// @param amount0Delta The amount of token0 due to the pool for the swap
    /// @param amount1Delta The amount of token1 due to the pool for the swap
    /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call
    function uniswapV3SwapCallback(
        int256 amount0Delta,
        int256 amount1Delta,
        bytes calldata data
    ) external;

    /// @notice Returns the user position information associated with a given token ID.
    /// @param tokenId The ID of the token that represents the position
    /// @return Position
    /// - nonce The nonce for permits
    /// - pool Address of the uniswap V3 pool
    /// - liquidity The liquidity of the position
    /// - feeGrowth0 The fee growth of token0 as of the last action on the individual position
    /// - feeGrowth1 The fee growth of token1 as of the last action on the individual position
    /// - tokensOwed0 The uncollected amount of token0 owed to the position as of the last computation
    /// - tokensOwed1 The uncollected amount of token1 owed to the position as of the last computation
    function userPositions(uint256 tokenId)
        external
        view
        returns (Position memory);

    /// @notice Returns the vault information of unipilot base & range orders
    /// @param pool Address of the Uniswap pool
    /// @return LiquidityPosition
    /// - baseTickLower The lower tick of the base position
    /// - baseTickUpper The upper tick of the base position
    /// - baseLiquidity The total liquidity of the base position
    /// - rangeTickLower The lower tick of the range position
    /// - rangeTickUpper The upper tick of the range position
    /// - rangeLiquidity The total liquidity of the range position
    /// - fees0 Total amount of fees collected by unipilot positions in terms of token0
    /// - fees1 Total amount of fees collected by unipilot positions in terms of token1
    /// - feeGrowthGlobal0 The fee growth of token0 collected per unit of liquidity for
    /// the entire life of the unipilot vault
    /// - feeGrowthGlobal1 The fee growth of token1 collected per unit of liquidity for
    /// the entire life of the unipilot vault
    /// - totalLiquidity Total amount of liquidity of vault including base & range orders
    function poolPositions(address pool)
        external
        view
        returns (LiquidityPosition memory);

    /// @notice Calculates the vault's total holdings of token0 and token1 - in
    /// other words, how much of each token the vault would hold if it withdrew
    /// all its liquidity from Uniswap.
    /// @param _pool Address of the uniswap pool
    /// @return amount0 Total amount of token0 in vault
    /// @return amount1 Total amount of token1 in vault
    /// @return totalLiquidity Total liquidity of the vault
    function updatePositionTotalAmounts(address _pool)
        external
        view
        returns (
            uint256 amount0,
            uint256 amount1,
            uint256 totalLiquidity
        );

    /// @notice Calculates the vault's total holdings of TOKEN0 and TOKEN1 - in
    /// other words, how much of each token the vault would hold if it withdrew
    /// all its liquidity from Uniswap.
    /// @dev Updates the position and return the latest reserves & liquidity.
    /// @param token0 token0 of the pool
    /// @param token0 token1 of the pool
    /// @param data any necessary data needed to get reserves
    /// @return totalAmount0 Amount of token0 in the pool of unipilot
    /// @return totalAmount1 Amount of token1 in the pool of unipilot
    /// @return totalLiquidity Total liquidity available in unipilot pool
    function getReserves(
        address token0,
        address token1,
        bytes calldata data
    )
        external
        returns (
            uint256 totalAmount0,
            uint256 totalAmount1,
            uint256 totalLiquidity
        );

    /// @notice Creates a new pool & then initializes the pool
    /// @param _token0 The contract address of token0 of the pool
    /// @param _token1 The contract address of token1 of the pool
    /// @param data Necessary data needed to create pool
    /// In data we will provide the `fee` amount of the v3 pool for the specified token pair,
    /// also `sqrtPriceX96` The initial square root price of the pool
    /// @return _pool Returns the pool address based on the pair of tokens and fee, will return the newly created pool address
    function createPair(
        address _token0,
        address _token1,
        bytes memory data
    ) external returns (address _pool);

    /// @notice Deposits tokens in proportion to the Unipilot's current ticks, mints them
    /// `Unipilot`s NFT.
    /// @param token0 The first of the two tokens of the pool, sorted by address
    /// @param token1 The second of the two tokens of the pool, sorted by address
    /// @param amount0Desired Max amount of token0 to deposit
    /// @param amount1Desired Max amount of token1 to deposit
    /// @param shares Number of shares minted
    /// @param tokenId Token Id of Unipilot
    /// @param isTokenMinted Boolean to check the minting of new tokenId of Unipilot
    /// @param data Necessary data needed to deposit
    function deposit(
        address token0,
        address token1,
        uint256 amount0Desired,
        uint256 amount1Desired,
        uint256 shares,
        uint256 tokenId,
        bool isTokenMinted,
        bytes memory data
    ) external payable;

    /// @notice withdraws the desired shares from the vault with accumulated user fees and transfers to recipient.
    /// @param pilotToken whether to recieve fees in PILOT or not (valid if user is not reciving fees in token0, token1)
    /// @param wethToken whether to recieve fees in WETH or ETH (only valid for WETH/ALT pairs)
    /// @param liquidity The amount by which liquidity will be withdrawn
    /// @param tokenId The ID of the token for which liquidity is being withdrawn
    /// @param data Necessary data needed to withdraw liquidity from Unipilot
    function withdraw(
        bool pilotToken,
        bool wethToken,
        uint256 liquidity,
        uint256 tokenId,
        bytes memory data
    ) external payable;

    /// @notice Collects up to a maximum amount of fees owed to a specific user position to the recipient
    /// @dev User have both options whether to recieve fees in PILOT or in pool token0 & token1
    /// @param pilotToken whether to recieve fees in PILOT or not (valid if user is not reciving fees in token0, token1)
    /// @param wethToken whether to recieve fees in WETH or ETH (only valid for WETH/ALT pairs)
    /// @param tokenId The ID of the Unpilot NFT for which tokens will be collected
    /// @param data Necessary data needed to collect fees from Unipilot
    function collect(
        bool pilotToken,
        bool wethToken,
        uint256 tokenId,
        bytes memory data
    ) external payable;
}

// File: contracts/interfaces/popsicle-interfaces/IPopsicleV3Optimizer.sol



// SPDX-License-Identifier: MIT

pragma solidity =0.7.6;
import "@uniswap/v3-core/contracts/interfaces/IUniswapV3Pool.sol";

interface IPopsicleV3Optimizer {
    /// @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 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 A Uniswap pool facilitates swapping and automated market making between any two assets that strictly conform
    /// to the ERC20 specification
    /// @return The address of the Uniswap V3 Pool
    function pool() external view returns (IUniswapV3Pool);

    /// @notice The lower tick of the range
    function tickLower() external view returns (int24);

    /// @notice The upper tick of the range
    function tickUpper() external view returns (int24);

    /**
     * @notice Deposits tokens in proportion to the Optimizer's current ticks.
     * @param amount0Desired Max amount of token0 to deposit
     * @param amount1Desired Max amount of token1 to deposit
     * @param to address that plp should be transfered
     * @return shares minted
     * @return amount0 Amount of token0 deposited
     * @return amount1 Amount of token1 deposited
     */
    function deposit(
        uint256 amount0Desired,
        uint256 amount1Desired,
        address to
    )
        external
        returns (
            uint256 shares,
            uint256 amount0,
            uint256 amount1
        );

    /**
     * @notice Withdraws tokens in proportion to the Optimizer's holdings.
     * @dev Removes proportional amount of liquidity from Uniswap.
     * @param shares burned by sender
     * @return amount0 Amount of token0 sent to recipient
     * @return amount1 Amount of token1 sent to recipient
     */
    function withdraw(uint256 shares, address to)
        external
        returns (uint256 amount0, uint256 amount1);

    /**
     * @notice Updates Optimizer's positions.
     * @dev Finds base position and limit position for imbalanced token
     * mints all amounts to this position(including earned fees)
     */
    function rerange() external;

    /**
     * @notice Updates Optimizer's positions. Can only be called by the governance.
     * @dev Swaps imbalanced token. Finds base position and limit position for imbalanced token if
     * we don't have balance during swap because of price impact.
     * mints all amounts to this position(including earned fees)
     */
    function rebalance() external;
}

// File: contracts/interfaces/visor-interfaces/IVault.sol



// SPDX-License-Identifier: Unlicense

pragma solidity 0.7.6;

interface IVault {
    function deposit(
        uint256,
        uint256,
        address
    ) external returns (uint256);

    function withdraw(
        uint256,
        address,
        address
    ) external returns (uint256, uint256);

    function rebalance(
        int24 _baseLower,
        int24 _baseUpper,
        int24 _limitLower,
        int24 _limitUpper,
        address feeRecipient,
        int256 swapQuantity
    ) external;

    function getTotalAmounts() external view returns (uint256, uint256);

    event Deposit(
        address indexed sender,
        address indexed to,
        uint256 shares,
        uint256 amount0,
        uint256 amount1
    );

    event Withdraw(
        address indexed sender,
        address indexed to,
        uint256 shares,
        uint256 amount0,
        uint256 amount1
    );

    event Rebalance(
        int24 tick,
        uint256 totalAmount0,
        uint256 totalAmount1,
        uint256 feeAmount0,
        uint256 feeAmount1,
        uint256 totalSupply
    );
}

// File: contracts/interfaces/lixir-interfaces/ILixirVaultETH.sol



// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.7.6;

import "./ILixirVault.sol";

interface ILixirVaultETH is ILixirVault {
    enum TOKEN {
        ZERO,
        ONE
    }

    function WETH_TOKEN() external view returns (TOKEN);

    function depositETH(
        uint256 amountDesired,
        uint256 amountEthMin,
        uint256 amountMin,
        address recipient,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 shares,
            uint256 amountEthIn,
            uint256 amountIn
        );

    function withdrawETHFrom(
        address withdrawer,
        uint256 shares,
        uint256 amountEthMin,
        uint256 amountMin,
        address payable recipient,
        uint256 deadline
    ) external returns (uint256 amountEthOut, uint256 amountOut);

    function withdrawETH(
        uint256 shares,
        uint256 amountEthMin,
        uint256 amountMin,
        address payable recipient,
        uint256 deadline
    ) external returns (uint256 amountEthOut, uint256 amountOut);

    receive() external payable;
}

// File: contracts/interfaces/external/IUnipilot.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.6;
pragma abicoder v2;

import "./IExchangeManager.sol";

interface IUnipilot {
    struct DepositVars {
        uint256 totalAmount0;
        uint256 totalAmount1;
        uint256 totalLiquidity;
        uint256 shares;
    }

    event ExchangeWhitelisted(address newExchange);
    event ExchangeStatus(address exchange, bool status);
    event GovernanceUpdated(address oldGovernance, address newGovernance);

    function governance() external view returns (address);

    function mintProxy() external view returns (address);

    function mintPilot(address recipient, uint256 amount) external;

    function deposit(
        IExchangeManager.DepositParams memory params,
        bytes memory data
    ) external payable returns (uint256 amount0Added, uint256 amount1Added);

    function createPoolAndDeposit(
        IExchangeManager.DepositParams memory params,
        bytes[2] calldata data
    )
        external
        payable
        returns (
            uint256 amount0Added,
            uint256 amount1Added,
            uint256 mintedTokenId
        );

    function exchangeManagerWhitelist(address exchange)
        external
        view
        returns (bool);

    function withdraw(
        IExchangeManager.WithdrawParams calldata params,
        bytes memory data
    ) external payable;

    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;
}

// File: contracts/base/PeripheryPayments.sol



// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;

import "../interfaces/external/IWETH9.sol";
import "../libraries/TransferHelper.sol";

abstract contract PeripheryPayments {
    address internal constant WETH = 0xc778417E063141139Fce010982780140Aa0cD5Ab;

    receive() external payable {}

    fallback() external payable {}

    /// @notice Transfers the full amount of a token held by this contract to recipient (In case of Emergency transfer tokens out of vault)
    /// @dev The amountMinimum parameter prevents malicious contracts from stealing the token from users
    /// @param token The contract address of the token which will be transferred to `recipient`
    /// @param amountMinimum The minimum amount of token required for a transfer
    /// @param recipient The destination address of the token
    function sweepToken(
        address token,
        uint256 amountMinimum,
        address recipient
    ) internal {
        uint256 balanceToken = IERC20(token).balanceOf(address(this));
        require(balanceToken >= amountMinimum, "IT");
        if (balanceToken > 0) {
            TransferHelper.safeTransfer(token, recipient, balanceToken);
        }
    }

    /// @notice Unwraps the contract's WETH9 balance and sends it to recipient as ETH.
    /// @dev The amountMinimum parameter prevents malicious contracts from stealing WETH9 from users.
    /// @param amountMinimum The minimum amount of WETH9 to unwrap
    /// @param recipient The address receiving ETH
    function unwrapWETH9(uint256 amountMinimum, address recipient) internal {
        uint256 balanceWETH9 = IWETH9(WETH).balanceOf(address(this));
        require(balanceWETH9 >= amountMinimum, "IW");

        if (balanceWETH9 > 0) {
            IWETH9(WETH).withdraw(balanceWETH9);
            TransferHelper.safeTransferETH(recipient, balanceWETH9);
        }
    }

    /// @notice Refunds any ETH balance held by this contract to the `msg.sender`
    /// @dev Useful for bundling with mint or increase liquidity that uses ether, or exact output swaps
    /// that use ether for the input amount
    function refundETH() internal {
        if (address(this).balance > 0)
            TransferHelper.safeTransferETH(msg.sender, address(this).balance);
    }

    /// @param token The token to pay
    /// @param payer The entity that must pay
    /// @param recipient The entity that will receive payment
    /// @param value The amount to pay
    function pay(
        address token,
        address payer,
        address recipient,
        uint256 value
    ) internal {
        if (token == WETH && address(this).balance >= value) {
            // pay with WETH9
            IWETH9(WETH).deposit{ value: value }(); // wrap only what is needed to pay
            IWETH9(WETH).transfer(recipient, value);
        } else if (payer == address(this)) {
            // pay with tokens already in the contract (for the exact input multihop case)
            TransferHelper.safeTransfer(token, recipient, value);
        } else {
            // pull payment
            TransferHelper.safeTransferFrom(token, payer, recipient, value);
        }
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

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

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

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

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

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

// File: @openzeppelin/contracts/math/SafeMath.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // 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.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        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.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

// File: @openzeppelin/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "./IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {

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

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

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

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 tokenId);

    /**
     * @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);
}

// File: @uniswap/v3-periphery/contracts/interfaces/IPoolInitializer.sol



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

/// @title Creates and initializes V3 Pools
/// @notice Provides a method for creating and initializing a pool, if necessary, for bundling with other methods that
/// require the pool to exist.
interface IPoolInitializer {
    /// @notice Creates a new pool if it does not exist, then initializes if not initialized
    /// @dev This method can be bundled with others via IMulticall for the first action (e.g. mint) performed against a pool
    /// @param token0 The contract address of token0 of the pool
    /// @param token1 The contract address of token1 of the pool
    /// @param fee The fee amount of the v3 pool for the specified token pair
    /// @param sqrtPriceX96 The initial square root price of the pool as a Q64.96 value
    /// @return pool Returns the pool address based on the pair of tokens and fee, will return the newly created pool address if necessary
    function createAndInitializePoolIfNecessary(
        address token0,
        address token1,
        uint24 fee,
        uint160 sqrtPriceX96
    ) external payable returns (address pool);
}

// File: @uniswap/v3-periphery/contracts/interfaces/IERC721Permit.sol



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

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';

/// @title ERC721 with permit
/// @notice Extension to ERC721 that includes a permit function for signature based approvals
interface IERC721Permit is IERC721 {
    /// @notice The permit typehash used in the permit signature
    /// @return The typehash for the permit
    function PERMIT_TYPEHASH() external pure returns (bytes32);

    /// @notice The domain separator used in the permit signature
    /// @return The domain seperator used in encoding of permit signature
    function DOMAIN_SEPARATOR() external view returns (bytes32);

    /// @notice Approve of a specific token ID for spending by spender via signature
    /// @param spender The account that is being approved
    /// @param tokenId The ID of the token that is being approved for spending
    /// @param deadline The deadline timestamp by which the call must be mined for the approve to work
    /// @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`
    /// @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`
    /// @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`
    function permit(
        address spender,
        uint256 tokenId,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external payable;
}

// File: @uniswap/v3-periphery/contracts/interfaces/IPeripheryPayments.sol



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

/// @title Periphery Payments
/// @notice Functions to ease deposits and withdrawals of ETH
interface IPeripheryPayments {
    /// @notice Unwraps the contract's WETH9 balance and sends it to recipient as ETH.
    /// @dev The amountMinimum parameter prevents malicious contracts from stealing WETH9 from users.
    /// @param amountMinimum The minimum amount of WETH9 to unwrap
    /// @param recipient The address receiving ETH
    function unwrapWETH9(uint256 amountMinimum, address recipient) external payable;

    /// @notice Refunds any ETH balance held by this contract to the `msg.sender`
    /// @dev Useful for bundling with mint or increase liquidity that uses ether, or exact output swaps
    /// that use ether for the input amount
    function refundETH() external payable;

    /// @notice Transfers the full amount of a token held by this contract to recipient
    /// @dev The amountMinimum parameter prevents malicious contracts from stealing the token from users
    /// @param token The contract address of the token which will be transferred to `recipient`
    /// @param amountMinimum The minimum amount of token required for a transfer
    /// @param recipient The destination address of the token
    function sweepToken(
        address token,
        uint256 amountMinimum,
        address recipient
    ) external payable;
}

// File: @uniswap/v3-periphery/contracts/interfaces/IPeripheryImmutableState.sol



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

/// @title Immutable state
/// @notice Functions that return immutable state of the router
interface IPeripheryImmutableState {
    /// @return Returns the address of the Uniswap V3 factory
    function factory() external view returns (address);

    /// @return Returns the address of WETH9
    function WETH9() external view returns (address);
}

// File: @uniswap/v3-periphery/contracts/libraries/PoolAddress.sol



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

/// @title Provides functions for deriving a pool address from the factory, tokens, and the fee
library PoolAddress {
    bytes32 internal constant POOL_INIT_CODE_HASH = 0xe34f199b19b2b4f47f68442619d555527d244f78a3297ea89325f843f87b8b54;

    /// @notice The identifying key of the pool
    struct PoolKey {
        address token0;
        address token1;
        uint24 fee;
    }

    /// @notice Returns PoolKey: the ordered tokens with the matched fee levels
    /// @param tokenA The first token of a pool, unsorted
    /// @param tokenB The second token of a pool, unsorted
    /// @param fee The fee level of the pool
    /// @return Poolkey The pool details with ordered token0 and token1 assignments
    function getPoolKey(
        address tokenA,
        address tokenB,
        uint24 fee
    ) internal pure returns (PoolKey memory) {
        if (tokenA > tokenB) (tokenA, tokenB) = (tokenB, tokenA);
        return PoolKey({token0: tokenA, token1: tokenB, fee: fee});
    }

    /// @notice Deterministically computes the pool address given the factory and PoolKey
    /// @param factory The Uniswap V3 factory contract address
    /// @param key The PoolKey
    /// @return pool The contract address of the V3 pool
    function computeAddress(address factory, PoolKey memory key) internal pure returns (address pool) {
        require(key.token0 < key.token1);
        pool = address(
            uint256(
                keccak256(
                    abi.encodePacked(
                        hex'ff',
                        factory,
                        keccak256(abi.encode(key.token0, key.token1, key.fee)),
                        POOL_INIT_CODE_HASH
                    )
                )
            )
        );
    }
}

// File: @openzeppelin/contracts/token/ERC721/IERC721.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "../../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`, 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 be 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: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * 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 Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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 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);

    /**
      * @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;
}

// File: @openzeppelin/contracts/introspection/IERC165.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @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);
}

// File: contracts/interfaces/external/IExchangeManager.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.6;
pragma abicoder v2;

/// @notice IExchangeManager is a generalized interface for all the liquidity managers
/// @dev Contains all necessary methods that should be available in liquidity manager contracts
interface IExchangeManager {
    struct DepositParams {
        address recipient;
        address exchangeManagerAddress;
        address token0;
        address token1;
        uint256 amount0Desired;
        uint256 amount1Desired;
        uint256 tokenId;
    }

    struct WithdrawParams {
        bool pilotToken;
        bool wethToken;
        address exchangeManagerAddress;
        uint256 liquidity;
        uint256 tokenId;
    }

    struct CollectParams {
        bool pilotToken;
        bool wethToken;
        address exchangeManagerAddress;
        uint256 tokenId;
    }

    function createPair(
        address _token0,
        address _token1,
        bytes calldata data
    ) external;

    function deposit(
        address token0,
        address token1,
        uint256 amount0,
        uint256 amount1,
        uint256 shares,
        uint256 tokenId,
        bool isTokenMinted,
        bytes calldata data
    ) external payable;

    function withdraw(
        bool pilotToken,
        bool wethToken,
        uint256 liquidity,
        uint256 tokenId,
        bytes calldata data
    ) external;

    function getReserves(
        address token0,
        address token1,
        bytes calldata data
    )
        external
        returns (
            uint256 shares,
            uint256 amount0,
            uint256 amount1
        );

    function collect(
        bool pilotToken,
        bool wethToken,
        uint256 tokenId,
        bytes calldata data
    ) external payable;
}

// File: contracts/interfaces/external/IULMEvents.sol



// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity >=0.7.6;

interface IULMEvents {
    event PoolCreated(
        address indexed token0,
        address indexed token1,
        address indexed pool,
        uint24 fee,
        uint160 sqrtPriceX96
    );

    event PoolReajusted(
        address pool,
        uint128 baseLiquidity,
        uint128 rangeLiquidity,
        int24 newBaseTickLower,
        int24 newBaseTickUpper,
        int24 newRangeTickLower,
        int24 newRangeTickUpper
    );

    event Deposited(
        address indexed pool,
        uint256 tokenId,
        uint256 amount0,
        uint256 amount1,
        uint256 liquidity
    );

    event Collect(
        uint256 tokenId,
        uint256 userAmount0,
        uint256 userAmount1,
        uint256 pilotAmount,
        address pool,
        address recipient
    );

    event Withdrawn(
        address indexed pool,
        address indexed recipient,
        uint256 tokenId,
        uint256 amount0,
        uint256 amount1
    );
}

// File: @uniswap/v3-core/contracts/interfaces/IUniswapV3Pool.sol



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

import './pool/IUniswapV3PoolImmutables.sol';
import './pool/IUniswapV3PoolState.sol';
import './pool/IUniswapV3PoolDerivedState.sol';
import './pool/IUniswapV3PoolActions.sol';
import './pool/IUniswapV3PoolOwnerActions.sol';
import './pool/IUniswapV3PoolEvents.sol';

/// @title The interface for a Uniswap V3 Pool
/// @notice A Uniswap pool facilitates swapping and automated market making between any two assets that strictly conform
/// to the ERC20 specification
/// @dev The pool interface is broken up into many smaller pieces
interface IUniswapV3Pool is
    IUniswapV3PoolImmutables,
    IUniswapV3PoolState,
    IUniswapV3PoolDerivedState,
    IUniswapV3PoolActions,
    IUniswapV3PoolOwnerActions,
    IUniswapV3PoolEvents
{

}

// File: @uniswap/v3-core/contracts/interfaces/pool/IUniswapV3PoolImmutables.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);
}

// File: @uniswap/v3-core/contracts/interfaces/pool/IUniswapV3PoolState.sol



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

/// @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
    /// 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.
    /// observationIndex The index of the last oracle observation that was written,
    /// observationCardinality The current maximum number of observations stored in the pool,
    /// observationCardinalityNext The next maximum number of observations, to be updated when the observation.
    /// 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
    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,
    /// liquidityNet how much liquidity changes when the pool price crosses the tick,
    /// feeGrowthOutside0X128 the fee growth on the other side of the tick from the current tick in token0,
    /// feeGrowthOutside1X128 the fee growth on the other side of the tick from the current tick in token1,
    /// tickCumulativeOutside the cumulative tick value on the other side of the tick from the current tick
    /// secondsPerLiquidityOutsideX128 the seconds spent per liquidity on the other side of the tick from the current tick,
    /// secondsOutside the seconds spent on the other side of the tick from the current tick,
    /// 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,
    /// Returns feeGrowthInside0LastX128 fee growth of token0 inside the tick range as of the last mint/burn/poke,
    /// Returns feeGrowthInside1LastX128 fee growth of token1 inside the tick range as of the last mint/burn/poke,
    /// Returns tokensOwed0 the computed amount of token0 owed to the position as of the last mint/burn/poke,
    /// Returns 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,
    /// Returns tickCumulative the tick multiplied by seconds elapsed for the life of the pool as of the observation timestamp,
    /// Returns secondsPerLiquidityCumulativeX128 the seconds per in range liquidity for the life of the pool as of the observation timestamp,
    /// Returns 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
        );
}

// File: @uniswap/v3-core/contracts/interfaces/pool/IUniswapV3PoolDerivedState.sol



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

/// @title Pool state that is not stored
/// @notice Contains view functions to provide information about the pool that is computed rather than stored on the
/// blockchain. The functions here may have variable gas costs.
interface IUniswapV3PoolDerivedState {
    /// @notice Returns the cumulative tick and liquidity as of each timestamp `secondsAgo` from the current block timestamp
    /// @dev To get a time weighted average tick or liquidity-in-range, you must call this with two values, one representing
    /// the beginning of the period and another for the end of the period. E.g., to get the last hour time-weighted average tick,
    /// you must call it with secondsAgos = [3600, 0].
    /// @dev The time weighted average tick represents the geometric time weighted average price of the pool, in
    /// log base sqrt(1.0001) of token1 / token0. The TickMath library can be used to go from a tick value to a ratio.
    /// @param secondsAgos From how long ago each cumulative tick and liquidity value should be returned
    /// @return tickCumulatives Cumulative tick values as of each `secondsAgos` from the current block timestamp
    /// @return secondsPerLiquidityCumulativeX128s Cumulative seconds per liquidity-in-range value as of each `secondsAgos` from the current block
    /// timestamp
    function observe(uint32[] calldata secondsAgos)
        external
        view
        returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s);

    /// @notice Returns a snapshot of the tick cumulative, seconds per liquidity and seconds inside a tick range
    /// @dev Snapshots must only be compared to other snapshots, taken over a period for which a position existed.
    /// I.e., snapshots cannot be compared if a position is not held for the entire period between when the first
    /// snapshot is taken and the second snapshot is taken.
    /// @param tickLower The lower tick of the range
    /// @param tickUpper The upper tick of the range
    /// @return tickCumulativeInside The snapshot of the tick accumulator for the range
    /// @return secondsPerLiquidityInsideX128 The snapshot of seconds per liquidity for the range
    /// @return secondsInside The snapshot of seconds per liquidity for the range
    function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)
        external
        view
        returns (
            int56 tickCumulativeInside,
            uint160 secondsPerLiquidityInsideX128,
            uint32 secondsInside
        );
}

// File: @uniswap/v3-core/contracts/interfaces/pool/IUniswapV3PoolActions.sol



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

/// @title Permissionless pool actions
/// @notice Contains pool methods that can be called by anyone
interface IUniswapV3PoolActions {
    /// @notice Sets the initial price for the pool
    /// @dev Price is represented as a sqrt(amountToken1/amountToken0) Q64.96 value
    /// @param sqrtPriceX96 the initial sqrt price of the pool as a Q64.96
    function initialize(uint160 sqrtPriceX96) external;

    /// @notice Adds liquidity for the given recipient/tickLower/tickUpper position
    /// @dev The caller of this method receives a callback in the form of IUniswapV3MintCallback#uniswapV3MintCallback
    /// in which they must pay any token0 or token1 owed for the liquidity. The amount of token0/token1 due depends
    /// on tickLower, tickUpper, the amount of liquidity, and the current price.
    /// @param recipient The address for which the liquidity will be created
    /// @param tickLower The lower tick of the position in which to add liquidity
    /// @param tickUpper The upper tick of the position in which to add liquidity
    /// @param amount The amount of liquidity to mint
    /// @param data Any data that should be passed through to the callback
    /// @return amount0 The amount of token0 that was paid to mint the given amount of liquidity. Matches the value in the callback
    /// @return amount1 The amount of token1 that was paid to mint the given amount of liquidity. Matches the value in the callback
    function mint(
        address recipient,
        int24 tickLower,
        int24 tickUpper,
        uint128 amount,
        bytes calldata data
    ) external returns (uint256 amount0, uint256 amount1);

    /// @notice Collects tokens owed to a position
    /// @dev Does not recompute fees earned, which must be done either via mint or burn of any amount of liquidity.
    /// Collect must be called by the position owner. To withdraw only token0 or only token1, amount0Requested or
    /// amount1Requested may be set to zero. To withdraw all tokens owed, caller may pass any value greater than the
    /// actual tokens owed, e.g. type(uint128).max. Tokens owed may be from accumulated swap fees or burned liquidity.
    /// @param recipient The address which should receive the fees collected
    /// @param tickLower The lower tick of the position for which to collect fees
    /// @param tickUpper The upper tick of the position for which to collect fees
    /// @param amount0Requested How much token0 should be withdrawn from the fees owed
    /// @param amount1Requested How much token1 should be withdrawn from the fees owed
    /// @return amount0 The amount of fees collected in token0
    /// @return amount1 The amount of fees collected in token1
    function collect(
        address recipient,
        int24 tickLower,
        int24 tickUpper,
        uint128 amount0Requested,
        uint128 amount1Requested
    ) external returns (uint128 amount0, uint128 amount1);

    /// @notice Burn liquidity from the sender and account tokens owed for the liquidity to the position
    /// @dev Can be used to trigger a recalculation of fees owed to a position by calling with an amount of 0
    /// @dev Fees must be collected separately via a call to #collect
    /// @param tickLower The lower tick of the position for which to burn liquidity
    /// @param tickUpper The upper tick of the position for which to burn liquidity
    /// @param amount How much liquidity to burn
    /// @return amount0 The amount of token0 sent to the recipient
    /// @return amount1 The amount of token1 sent to the recipient
    function burn(
        int24 tickLower,
        int24 tickUpper,
        uint128 amount
    ) external returns (uint256 amount0, uint256 amount1);

    /// @notice Swap token0 for token1, or token1 for token0
    /// @dev The caller of this method receives a callback in the form of IUniswapV3SwapCallback#uniswapV3SwapCallback
    /// @param recipient The address to receive the output of the swap
    /// @param zeroForOne The direction of the swap, true for token0 to token1, false for token1 to token0
    /// @param amountSpecified The amount of the swap, which implicitly configures the swap as exact input (positive), or exact output (negative)
    /// @param sqrtPriceLimitX96 The Q64.96 sqrt price limit. If zero for one, the price cannot be less than this
    /// value after the swap. If one for zero, the price cannot be greater than this value after the swap
    /// @param data Any data to be passed through to the callback
    /// @return amount0 The delta of the balance of token0 of the pool, exact when negative, minimum when positive
    /// @return amount1 The delta of the balance of token1 of the pool, exact when negative, minimum when positive
    function swap(
        address recipient,
        bool zeroForOne,
        int256 amountSpecified,
        uint160 sqrtPriceLimitX96,
        bytes calldata data
    ) external returns (int256 amount0, int256 amount1);

    /// @notice Receive token0 and/or token1 and pay it back, plus a fee, in the callback
    /// @dev The caller of this method receives a callback in the form of IUniswapV3FlashCallback#uniswapV3FlashCallback
    /// @dev Can be used to donate underlying tokens pro-rata to currently in-range liquidity providers by calling
    /// with 0 amount{0,1} and sending the donation amount(s) from the callback
    /// @param recipient The address which will receive the token0 and token1 amounts
    /// @param amount0 The amount of token0 to send
    /// @param amount1 The amount of token1 to send
    /// @param data Any data to be passed through to the callback
    function flash(
        address recipient,
        uint256 amount0,
        uint256 amount1,
        bytes calldata data
    ) external;

    /// @notice Increase the maximum number of price and liquidity observations that this pool will store
    /// @dev This method is no-op if the pool already has an observationCardinalityNext greater than or equal to
    /// the input observationCardinalityNext.
    /// @param observationCardinalityNext The desired minimum number of observations for the pool to store
    function increaseObservationCardinalityNext(uint16 observationCardinalityNext) external;
}

// File: @uniswap/v3-core/contracts/interfaces/pool/IUniswapV3PoolOwnerActions.sol



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

/// @title Permissioned pool actions
/// @notice Contains pool methods that may only be called by the factory owner
interface IUniswapV3PoolOwnerActions {
    /// @notice Set the denominator of the protocol's % share of the fees
    /// @param feeProtocol0 new protocol fee for token0 of the pool
    /// @param feeProtocol1 new protocol fee for token1 of the pool
    function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external;

    /// @notice Collect the protocol fee accrued to the pool
    /// @param recipient The address to which collected protocol fees should be sent
    /// @param amount0Requested The maximum amount of token0 to send, can be 0 to collect fees in only token1
    /// @param amount1Requested The maximum amount of token1 to send, can be 0 to collect fees in only token0
    /// @return amount0 The protocol fee collected in token0
    /// @return amount1 The protocol fee collected in token1
    function collectProtocol(
        address recipient,
        uint128 amount0Requested,
        uint128 amount1Requested
    ) external returns (uint128 amount0, uint128 amount1);
}

// File: @uniswap/v3-core/contracts/interfaces/pool/IUniswapV3PoolEvents.sol



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

/// @title Events emitted by a pool
/// @notice Contains all events emitted by the pool
interface IUniswapV3PoolEvents {
    /// @notice Emitted exactly once by a pool when #initialize is first called on the pool
    /// @dev Mint/Burn/Swap cannot be emitted by the pool before Initialize
    /// @param sqrtPriceX96 The initial sqrt price of the pool, as a Q64.96
    /// @param tick The initial tick of the pool, i.e. log base 1.0001 of the starting price of the pool
    event Initialize(uint160 sqrtPriceX96, int24 tick);

    /// @notice Emitted when liquidity is minted for a given position
    /// @param sender The address that minted the liquidity
    /// @param owner The owner of the position and recipient of any minted liquidity
    /// @param tickLower The lower tick of the position
    /// @param tickUpper The upper tick of the position
    /// @param amount The amount of liquidity minted to the position range
    /// @param amount0 How much token0 was required for the minted liquidity
    /// @param amount1 How much token1 was required for the minted liquidity
    event Mint(
        address sender,
        address indexed owner,
        int24 indexed tickLower,
        int24 indexed tickUpper,
        uint128 amount,
        uint256 amount0,
        uint256 amount1
    );

    /// @notice Emitted when fees are collected by the owner of a position
    /// @dev Collect events may be emitted with zero amount0 and amount1 when the caller chooses not to collect fees
    /// @param owner The owner of the position for which fees are collected
    /// @param tickLower The lower tick of the position
    /// @param tickUpper The upper tick of the position
    /// @param amount0 The amount of token0 fees collected
    /// @param amount1 The amount of token1 fees collected
    event Collect(
        address indexed owner,
        address recipient,
        int24 indexed tickLower,
        int24 indexed tickUpper,
        uint128 amount0,
        uint128 amount1
    );

    /// @notice Emitted when a position's liquidity is removed
    /// @dev Does not withdraw any fees earned by the liquidity position, which must be withdrawn via #collect
    /// @param owner The owner of the position for which liquidity is removed
    /// @param tickLower The lower tick of the position
    /// @param tickUpper The upper tick of the position
    /// @param amount The amount of liquidity to remove
    /// @param amount0 The amount of token0 withdrawn
    /// @param amount1 The amount of token1 withdrawn
    event Burn(
        address indexed owner,
        int24 indexed tickLower,
        int24 indexed tickUpper,
        uint128 amount,
        uint256 amount0,
        uint256 amount1
    );

    /// @notice Emitted by the pool for any swaps between token0 and token1
    /// @param sender The address that initiated the swap call, and that received the callback
    /// @param recipient The address that received the output of the swap
    /// @param amount0 The delta of the token0 balance of the pool
    /// @param amount1 The delta of the token1 balance of the pool
    /// @param sqrtPriceX96 The sqrt(price) of the pool after the swap, as a Q64.96
    /// @param liquidity The liquidity of the pool after the swap
    /// @param tick The log base 1.0001 of price of the pool after the swap
    event Swap(
        address indexed sender,
        address indexed recipient,
        int256 amount0,
        int256 amount1,
        uint160 sqrtPriceX96,
        uint128 liquidity,
        int24 tick
    );

    /// @notice Emitted by the pool for any flashes of token0/token1
    /// @param sender The address that initiated the swap call, and that received the callback
    /// @param recipient The address that received the tokens from flash
    /// @param amount0 The amount of token0 that was flashed
    /// @param amount1 The amount of token1 that was flashed
    /// @param paid0 The amount of token0 paid for the flash, which can exceed the amount0 plus the fee
    /// @param paid1 The amount of token1 paid for the flash, which can exceed the amount1 plus the fee
    event Flash(
        address indexed sender,
        address indexed recipient,
        uint256 amount0,
        uint256 amount1,
        uint256 paid0,
        uint256 paid1
    );

    /// @notice Emitted by the pool for increases to the number of observations that can be stored
    /// @dev observationCardinalityNext is not the observation cardinality until an observation is written at the index
    /// just before a mint/swap/burn.
    /// @param observationCardinalityNextOld The previous value of the next observation cardinality
    /// @param observationCardinalityNextNew The updated value of the next observation cardinality
    event IncreaseObservationCardinalityNext(
        uint16 observationCardinalityNextOld,
        uint16 observationCardinalityNextNew
    );

    /// @notice Emitted when the protocol fee is changed by the pool
    /// @param feeProtocol0Old The previous value of the token0 protocol fee
    /// @param feeProtocol1Old The previous value of the token1 protocol fee
    /// @param feeProtocol0New The updated value of the token0 protocol fee
    /// @param feeProtocol1New The updated value of the token1 protocol fee
    event SetFeeProtocol(uint8 feeProtocol0Old, uint8 feeProtocol1Old, uint8 feeProtocol0New, uint8 feeProtocol1New);

    /// @notice Emitted when the collected protocol fees are withdrawn by the factory owner
    /// @param sender The address that collects the protocol fees
    /// @param recipient The address that receives the collected protocol fees
    /// @param amount0 The amount of token0 protocol fees that is withdrawn
    /// @param amount0 The amount of token1 protocol fees that is withdrawn
    event CollectProtocol(address indexed sender, address indexed recipient, uint128 amount0, uint128 amount1);
}

// File: contracts/interfaces/lixir-interfaces/ILixirVault.sol



// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.7.6;

import "./ILixirVaultToken.sol";
import "@uniswap/v3-core/contracts/interfaces/IUniswapV3Pool.sol";

interface ILixirVault is ILixirVaultToken {
    function initialize(
        string memory name,
        string memory symbol,
        address _token0,
        address _token1,
        address _strategist,
        address _keeper,
        address _strategy
    ) external;

    function token0() external view returns (IERC20);

    function token1() external view returns (IERC20);

    function activeFee() external view returns (uint24);

    function activePool() external view returns (IUniswapV3Pool);

    function performanceFee() external view returns (uint24);

    function strategist() external view returns (address);

    function strategy() external view returns (address);

    function keeper() external view returns (address);

    function setKeeper(address _keeper) external;

    function setStrategist(address _strategist) external;

    function setStrategy(address _strategy) external;

    function setPerformanceFee(uint24 newFee) external;

    function mainPosition()
        external
        view
        returns (int24 tickLower, int24 tickUpper);

    function rangePosition()
        external
        view
        returns (int24 tickLower, int24 tickUpper);

    function rebalance(
        int24 mainTickLower,
        int24 mainTickUpper,
        int24 rangeTickLower0,
        int24 rangeTickUpper0,
        int24 rangeTickLower1,
        int24 rangeTickUpper1,
        uint24 fee
    ) external;

    function withdraw(
        uint256 shares,
        uint256 amount0Min,
        uint256 amount1Min,
        address receiver,
        uint256 deadline
    ) external returns (uint256 amount0Out, uint256 amount1Out);

    function withdrawFrom(
        address withdrawer,
        uint256 shares,
        uint256 amount0Min,
        uint256 amount1Min,
        address recipient,
        uint256 deadline
    ) external returns (uint256 amount0Out, uint256 amount1Out);

    function deposit(
        uint256 amount0Desired,
        uint256 amount1Desired,
        uint256 amount0Min,
        uint256 amount1Min,
        address recipient,
        uint256 deadline
    )
        external
        returns (
            uint256 shares,
            uint256 amount0,
            uint256 amount1
        );

    function calculateTotals()
        external
        view
        returns (
            uint256 total0,
            uint256 total1,
            uint128 mL,
            uint128 rL
        );

    function calculateTotalsFromTick(int24 virtualTick)
        external
        view
        returns (
            uint256 total0,
            uint256 total1,
            uint128 mL,
            uint128 rL
        );
}

// File: contracts/interfaces/lixir-interfaces/ILixirVaultToken.sol



// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity ^0.7.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface ILixirVaultToken is IERC20 {}