// File: contracts/deploy/CRPFactory.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;
import {RightsManager} from "../libraries/RightsManager.sol";
import {SmartPoolManager} from "../libraries/SmartPoolManager.sol";
import "../base/Logs.sol";

// Needed to handle structures externally
pragma experimental ABIEncoderV2;

// Imports
abstract contract IConfigurableRightsPool {
    struct PoolParams {
        string poolTokenSymbol;
        string poolTokenName;
        address[] constituentTokens;
        uint[] tokenBalances;
        uint[] tokenWeights;
        uint managerFee;
        uint redeemFee;
        uint issueFee;
        uint perfermanceFee;
        SmartPoolManager.Etypes etype;
    }

    struct CrpParams {
        uint initialSupply;
        uint collectPeriod;
        SmartPoolManager.Period period;
    }

    function setController(address owner) external virtual;

    function init(
        address factoryAddress,
        IConfigurableRightsPool.PoolParams calldata poolParams,
        RightsManager.Rights calldata rights
    ) external virtual;

    function initHandle(address[] memory owners, uint[] memory ownerPercentage) external virtual;
}

interface IUserVault {
    function setPoolParams(address pool, SmartPoolManager.KolPoolParams memory kolPoolParams) external;
}

interface ICRPFactory {
    function isCrp(address addr) external view returns (bool);
}
// Contracts

/**
 * @author Desyn Labs
 * @title Configurable Rights Pool Factory - create parameterized smart pools
 * @dev Rights are held in a corresponding struct in ConfigurableRightsPool
 *      Index values are as follows:
 *                            by default, it is off on initialization and can only be turned on
 *      4: canWhitelistLPs - if set, only whitelisted addresses can join pools
 *                           (enables private pools with more than one LP)
 *      5: canChangeCap - can change the BSP cap (max # of pool tokens)
 */
contract CRPFactory is Logs {
    // State variables

    // Keep a list of all Configurable Rights Pools
    mapping(address => bool) private _isCrp;

    // Event declarations

    // Log the address of each new smart pool, and its creator
    event LogNewCrp(address indexed caller, address indexed pool);
    event LOG_USER_VAULT(address indexed vault, address indexed caller);
    event LOG_MIDDLEWARE(address indexed middleware, address indexed caller);

    event AddCRPFactory(address caller, address indexed factory);
    event RemoveCRPFactory(address caller, address indexed factory);

    uint private counters;

    bytes public bytecodes;
    address private _blabs = msg.sender;
    address public userVault;

    address[] public CRPFactorys;

    // constructor(bytes memory _bytecode) public {
    //     bytecodes = _bytecode;
    //     _blabs = msg.sender;
    // }

    function createPool(IConfigurableRightsPool.PoolParams calldata poolParams) internal returns (address base) {
        bytes memory bytecode = bytecodes;
        bytes memory deploymentData = abi.encodePacked(bytecode, abi.encode(poolParams.poolTokenSymbol, poolParams.poolTokenName));
        bytes32 salt = keccak256(abi.encodePacked(counters++));
        assembly {
            base := create2(0, add(deploymentData, 32), mload(deploymentData), salt)
            if iszero(extcodesize(base)) {
                revert(0, 0)
            }
        }
    }

    // Function declarations
    /**
     * @notice Create a new CRP
     * @dev emits a LogNewCRP event
     * @param factoryAddress - the BFactory instance used to create the underlying pool
     * @param poolParams - struct containing the names, tokens, weights, balances, and swap fee
     * @param rights - struct of permissions, configuring this CRP instance (see above for definitions)
     */
    function newCrp(
        address factoryAddress,
        IConfigurableRightsPool.PoolParams calldata poolParams,
        RightsManager.Rights calldata rights,
        SmartPoolManager.KolPoolParams calldata kolPoolParams,
        address[] memory owners,
        uint[] memory ownerPercentage
    ) external returns (IConfigurableRightsPool) {
        // require(poolParams.constituentTokens.length >= DesynConstants.MIN_ASSET_LIMIT, "ERR_TOO_FEW_TOKENS");

        // Arrays must be parallel

        address crp = createPool(poolParams);
        emit LogNewCrp(msg.sender, crp);

        _isCrp[crp] = true;
        IConfigurableRightsPool(crp).init(factoryAddress, poolParams, rights);
        IUserVault(userVault).setPoolParams(crp, kolPoolParams);
        // The caller is the controller of the CRP
        // The CRP will be the controller of the underlying Core BPool
        IConfigurableRightsPool(crp).setController(msg.sender);
        IConfigurableRightsPool(crp).initHandle(owners, ownerPercentage);

        return IConfigurableRightsPool(crp);
    }

    modifier onlyBlabs() {
        require(msg.sender == _blabs, "ERR_NOT_BLABS");
        _;
    }

    function setUserVault(address newVault) external onlyBlabs {
        userVault = newVault;
        emit LOG_USER_VAULT(newVault, msg.sender);
    }

    function setByteCodes(bytes memory _bytecodes) external onlyBlabs _logs_ {
        bytecodes = _bytecodes;
    }

    /**
     * @notice Check to see if a given address is a CRP
     * @param addr - address to check
     * @return boolean indicating whether it is a CRP
     */
    function isCrp(address addr) external view returns (bool) {
        if(_isCrp[addr]) return _isCrp[addr];
        
        for(uint i=0; i<CRPFactorys.length; i++){
            if(ICRPFactory(CRPFactorys[i]).isCrp(addr)) return true;
        }
    }

    /**
     * @notice add CRPFactory
     * @param _crpFactory CRPFactory address
     * @dev add CRPFactory
     */
    function addCRPFactory(address _crpFactory) external onlyBlabs {
        require(_crpFactory != address(this),"ERR_CAN_NOT_ADD_SELF");
        uint len = CRPFactorys.length;

        for(uint i=0; i<len; i++){
            require(CRPFactorys[i] != _crpFactory, "ERR_HAS_BEEN_ADDED");
        }
        CRPFactorys.push(_crpFactory);
        emit AddCRPFactory(msg.sender, _crpFactory);
    }

    /**
     * @notice remove CRPFactory
     * @param _crpFactory CRPFactory address
     * @dev remove CRPFactory
     */
    function removeCRPFactory(address _crpFactory) external onlyBlabs  {
        uint len = CRPFactorys.length;
        for(uint i=0; i<len; i++){
            if(CRPFactorys[i] == _crpFactory){
                CRPFactorys[i] = CRPFactorys[len-1];
                CRPFactorys.pop();
                emit RemoveCRPFactory(msg.sender, _crpFactory);
                break;
            }
        }
    }
}

// File: contracts/libraries/SmartPoolManager.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;

// Needed to pass in structs
pragma experimental ABIEncoderV2;

// Imports

import "../interfaces/IERC20.sol";
import "../interfaces/IConfigurableRightsPool.sol";
import "../interfaces/IBFactory.sol"; // unused
import "./DesynSafeMath.sol";
import "./SafeMath.sol";
// import "./SafeApprove.sol";
import "../libraries/SafeERC20.sol";

/**
 * @author Desyn Labs
 * @title Factor out the weight updates
 */
library SmartPoolManager {
    // using SafeApprove for IERC20;
    using DesynSafeMath for uint;
    using SafeMath for uint;
    using SafeERC20 for IERC20;

    //kol pool params
    struct levelParams {
        uint level;
        uint ratio;
    }

    struct feeParams {
        levelParams firstLevel;
        levelParams secondLevel;
        levelParams thirdLevel;
        levelParams fourLevel;
    }
    
    struct KolPoolParams {
        feeParams managerFee;
        feeParams issueFee;
        feeParams redeemFee;
        feeParams perfermanceFee;
    }

    // Type declarations
    enum Etypes {
        OPENED,
        CLOSED
    }

    enum Period {
        DAY90,
        DAY180,
        DAY360,
        DAY1,
        DAY3,
        DAY7,
        DAY14,
        DAY30
    }

    struct Fund {
        uint etfAmount;
        uint fundAmount;
        uint snapshotTime;
        address[] tokens;
        uint[] tokensAmount;
    }

    // updateWeight and pokeWeights are unavoidably long
    /* solhint-disable function-max-lines */
    struct Status {
        uint collectPeriod;
        uint collectEndTime;
        uint closurePeriod;
        uint closureEndTime;
        uint upperCap;
        uint floorCap;
        uint managerFee;
        uint redeemFee;
        uint issueFee;
        uint perfermanceFee;
        uint startClaimFeeTime;
    }

    struct PoolParams {
        // Desyn Pool Token (representing shares of the pool)
        string poolTokenSymbol;
        string poolTokenName;
        // Tokens inside the Pool
        address[] constituentTokens;
        uint[] tokenBalances;
        uint[] tokenWeights;
        uint managerFee;
        uint redeemFee;
        uint issueFee;
        uint perfermanceFee;
        Etypes etype;
    }

    struct PoolTokenRange {
        uint bspFloor;
        uint bspCap;
    }

    function initRequire(
        uint managerFee,
        uint issueFee,
        uint redeemFee,
        uint perfermanceFee,
        uint tokenBalancesLength,
        uint tokenWeightsLength,
        uint constituentTokensLength,
        bool initBool
    ) external pure {
        // We don't have a pool yet; check now or it will fail later (in order of likelihood to fail)
        // (and be unrecoverable if they don't have permission set to change it)
        // Most likely to fail, so check first
        require(!initBool, "Init fail");
        require(managerFee >= DesynConstants.MANAGER_MIN_FEE, "ERR_INVALID_MANAGER_FEE");
        require(managerFee <= DesynConstants.MANAGER_MAX_FEE, "ERR_INVALID_MANAGER_FEE");
        require(issueFee >= DesynConstants.ISSUE_MIN_FEE, "ERR_INVALID_ISSUE_MIN_FEE");
        require(issueFee <= DesynConstants.ISSUE_MAX_FEE, "ERR_INVALID_ISSUE_MAX_FEE");
        require(redeemFee >= DesynConstants.REDEEM_MIN_FEE, "ERR_INVALID_REDEEM_MIN_FEE");
        require(redeemFee <= DesynConstants.REDEEM_MAX_FEE, "ERR_INVALID_REDEEM_MAX_FEE");
        require(perfermanceFee >= DesynConstants.PERFERMANCE_MIN_FEE, "ERR_INVALID_PERFERMANCE_MIN_FEE");
        require(perfermanceFee <= DesynConstants.PERFERMANCE_MAX_FEE, "ERR_INVALID_PERFERMANCE_MAX_FEE");

        // Arrays must be parallel
        require(tokenBalancesLength == constituentTokensLength, "ERR_START_BALANCES_MISMATCH");
        require(tokenWeightsLength == constituentTokensLength, "ERR_START_WEIGHTS_MISMATCH");
        // Cannot have too many or too few - technically redundant, since BPool.bind() would fail later
        // But if we don't check now, we could have a useless contract with no way to create a pool

        require(constituentTokensLength >= DesynConstants.MIN_ASSET_LIMIT, "ERR_TOO_FEW_TOKENS");
        require(constituentTokensLength <= DesynConstants.MAX_ASSET_LIMIT, "ERR_TOO_MANY_TOKENS");
        // There are further possible checks (e.g., if they use the same token twice), but
        // we can let bind() catch things like that (i.e., not things that might reasonably work)
    }

    /**
     * @notice Non ERC20-conforming tokens are problematic; don't allow them in pools
     * @dev Will revert if invalid
     * @param token - The prospective token to verify
     */
    function verifyTokenCompliance(address token) external {
        verifyTokenComplianceInternal(token);
    }

    /**
     * @notice Non ERC20-conforming tokens are problematic; don't allow them in pools
     * @dev Will revert if invalid - overloaded to save space in the main contract
     * @param tokens - The prospective tokens to verify
     */
    function verifyTokenCompliance(address[] calldata tokens) external {
        for (uint i = 0; i < tokens.length; i++) {
            verifyTokenComplianceInternal(tokens[i]);
        }
    }

    function createPoolInternalHandle(IBPool bPool, uint initialSupply) external view {
        require(initialSupply >= DesynConstants.MIN_POOL_SUPPLY, "ERR_INIT_SUPPLY_MIN");
        require(initialSupply <= DesynConstants.MAX_POOL_SUPPLY, "ERR_INIT_SUPPLY_MAX");
        require(bPool.EXIT_FEE() == 0, "ERR_NONZERO_EXIT_FEE");
        // EXIT_FEE must always be zero, or ConfigurableRightsPool._pushUnderlying will fail
        require(DesynConstants.EXIT_FEE == 0, "ERR_NONZERO_EXIT_FEE");
    }

    function createPoolHandle(
        uint collectPeriod,
        uint upperCap,
        uint initialSupply
    ) external pure {
        require(collectPeriod <= DesynConstants.MAX_COLLECT_PERIOD, "ERR_EXCEEDS_FUND_RAISING_PERIOD");
        require(upperCap >= initialSupply, "ERR_CAP_BIGGER_THAN_INITSUPPLY");
    }

    function exitPoolHandleA(
        IConfigurableRightsPool self,
        IBPool bPool,
        address poolToken,
        uint _tokenAmountOut,
        uint redeemFee
    )
        external
        returns (
            uint redeemAndPerformanceFeeReceived,
            uint finalAmountOut,
            uint redeemFeeReceived
        )
    {
        // redeem fee
        redeemFeeReceived = DesynSafeMath.bmul(_tokenAmountOut, redeemFee);

        // performance fee
        uint performanceFeeReceived = 0;
        
        // redeem fee and performance fee
        redeemAndPerformanceFeeReceived = DesynSafeMath.badd(performanceFeeReceived, redeemFeeReceived);

        // final amount the user got
        finalAmountOut = DesynSafeMath.bsub(_tokenAmountOut, redeemAndPerformanceFeeReceived);

        _pushUnderlying(bPool, poolToken, msg.sender, finalAmountOut);

        if (redeemFee != 0) {
            _pushUnderlying(bPool, poolToken, address(this), redeemAndPerformanceFeeReceived);
            IERC20(poolToken).safeApprove(self.vaultAddress(), 0);
            IERC20(poolToken).safeApprove(self.vaultAddress(), redeemAndPerformanceFeeReceived);
        }
    }

    function exitPoolHandleB(
        IConfigurableRightsPool self,
        bool bools,
        bool isCompletedCollect,
        uint closureEndTime,
        uint collectEndTime,
        // uint _etfAmount,
        // uint _fundAmount,
        uint poolAmountIn
    ) external view returns (uint actualPoolAmountIn) {
        actualPoolAmountIn = poolAmountIn;
        if (bools) {
            bool isCloseEtfCollectEndWithFailure = isCompletedCollect == false && block.timestamp >= collectEndTime;
            bool isCloseEtfClosureEnd = block.timestamp >= closureEndTime;
            require(isCloseEtfCollectEndWithFailure || isCloseEtfClosureEnd, "ERR_CLOSURE_TIME_NOT_ARRIVED!");

            actualPoolAmountIn = self.balanceOf(msg.sender);
        }
        // fundAmount = _fundAmount;
        // etfAmount = _etfAmount;
    }

    function joinPoolHandle(
        bool canWhitelistLPs,
        bool isList,
        bool bools,
        uint collectEndTime
    ) external view {
        require(!canWhitelistLPs || isList, "ERR_NOT_ON_WHITELIST");

        if (bools) {
            require(block.timestamp <= collectEndTime, "ERR_COLLECT_PERIOD_FINISHED!");
        }
    }

    /**
     * @notice Join a pool
     * @param self - ConfigurableRightsPool instance calling the library
     * @param bPool - Core BPool the CRP is wrapping
     * @param poolAmountOut - number of pool tokens to receive
     * @param maxAmountsIn - Max amount of asset tokens to spend
     * @return actualAmountsIn - calculated values of the tokens to pull in
     */
    function joinPool(
        IConfigurableRightsPool self,
        IBPool bPool,
        uint poolAmountOut,
        uint[] calldata maxAmountsIn,
        uint issueFee
    ) external view returns (uint[] memory actualAmountsIn) {
        address[] memory tokens = bPool.getCurrentTokens();

        require(maxAmountsIn.length == tokens.length, "ERR_AMOUNTS_MISMATCH");

        uint poolTotal = self.totalSupply();
        // Subtract  1 to ensure any rounding errors favor the pool
        uint ratio = DesynSafeMath.bdiv(poolAmountOut, DesynSafeMath.bsub(poolTotal, 1));

        require(ratio != 0, "ERR_MATH_APPROX");

        // We know the length of the array; initialize it, and fill it below
        // Cannot do "push" in memory
        actualAmountsIn = new uint[](tokens.length);

        // This loop contains external calls
        // External calls are to math libraries or the underlying pool, so low risk
        uint issueFeeRate = issueFee.bmul(1000);
        for (uint i = 0; i < tokens.length; i++) {
            address t = tokens[i];
            uint bal = bPool.getBalance(t);
            // Add 1 to ensure any rounding errors favor the pool
            uint base = bal.badd(1).bmul(poolAmountOut * uint(1000));
            uint tokenAmountIn = base.bdiv(poolTotal.bsub(1) * (uint(1000).bsub(issueFeeRate)));

            require(tokenAmountIn != 0, "ERR_MATH_APPROX");
            require(tokenAmountIn <= maxAmountsIn[i], "ERR_LIMIT_IN");

            actualAmountsIn[i] = tokenAmountIn;
        }
    }

    /**
     * @notice Exit a pool - redeem pool tokens for underlying assets
     * @param self - ConfigurableRightsPool instance calling the library
     * @param bPool - Core BPool the CRP is wrapping
     * @param poolAmountIn - amount of pool tokens to redeem
     * @param minAmountsOut - minimum amount of asset tokens to receive
     * @return actualAmountsOut - calculated amounts of each token to pull
     */
    function exitPool(
        IConfigurableRightsPool self,
        IBPool bPool,
        uint poolAmountIn,
        uint[] calldata minAmountsOut
    ) external view returns (uint[] memory actualAmountsOut) {
        address[] memory tokens = bPool.getCurrentTokens();

        require(minAmountsOut.length == tokens.length, "ERR_AMOUNTS_MISMATCH");

        uint poolTotal = self.totalSupply();

        uint ratio = DesynSafeMath.bdiv(poolAmountIn, DesynSafeMath.badd(poolTotal, 1));

        require(ratio != 0, "ERR_MATH_APPROX");

        actualAmountsOut = new uint[](tokens.length);

        // This loop contains external calls
        // External calls are to math libraries or the underlying pool, so low risk
        for (uint i = 0; i < tokens.length; i++) {
            address t = tokens[i];
            uint bal = bPool.getBalance(t);
            // Subtract 1 to ensure any rounding errors favor the pool
            uint tokenAmountOut = DesynSafeMath.bmul(ratio, DesynSafeMath.bsub(bal, 1));

            require(tokenAmountOut != 0, "ERR_MATH_APPROX");
            require(tokenAmountOut >= minAmountsOut[i], "ERR_LIMIT_OUT");

            actualAmountsOut[i] = tokenAmountOut;
        }
    }

    // Internal functions
    // Check for zero transfer, and make sure it returns true to returnValue
    function verifyTokenComplianceInternal(address token) internal {
        IERC20(token).safeTransfer(msg.sender, 0);
    }

    function handleTransferInTokens(
        IConfigurableRightsPool self,
        IBPool bPool,
        address poolToken,
        uint actualAmountIn,
        uint _actualIssueFee
    ) external returns (uint issueFeeReceived) {
        issueFeeReceived = DesynSafeMath.bmul(actualAmountIn, _actualIssueFee);
        uint amount = DesynSafeMath.bsub(actualAmountIn, issueFeeReceived);

        _pullUnderlying(bPool, poolToken, msg.sender, amount);

        if (_actualIssueFee != 0) {
            IERC20(poolToken).safeTransferFrom(msg.sender, address(this), issueFeeReceived);
            IERC20(poolToken).safeApprove(self.vaultAddress(), 0);
            IERC20(poolToken).safeApprove(self.vaultAddress(), issueFeeReceived);
        }
    }

    function handleClaim(
        IConfigurableRightsPool self,
        IBPool bPool,
        address[] calldata poolTokens,
        uint managerFee,
        uint timeElapsed,
        uint claimPeriod
    ) external returns (uint[] memory) {
        uint[] memory tokensAmount = new uint[](poolTokens.length);
        
        for (uint i = 0; i < poolTokens.length; i++) {
            address t = poolTokens[i];
            uint tokenBalance = bPool.getBalance(t);
            uint tokenAmountOut = tokenBalance.bmul(managerFee).mul(timeElapsed).div(claimPeriod).div(12);    
            _pushUnderlying(bPool, t, address(this), tokenAmountOut);
            IERC20(t).safeApprove(self.vaultAddress(), 0);
            IERC20(t).safeApprove(self.vaultAddress(), tokenAmountOut);
            tokensAmount[i] = tokenAmountOut;
        }
        
        return tokensAmount;
    }

    function handleFeeClaim(
        IConfigurableRightsPool self,
        IBPool bPool,
        address[] calldata poolTokens,
        uint feeRatio,
        bool isPerfermance
    ) external {
        if (feeRatio != 0) {
            uint[] memory tokensAmount = new uint[](poolTokens.length);

            for (uint i = 0; i < poolTokens.length; i++) {
                address t = poolTokens[i];
                uint currentAmount = bPool.getBalance(t);
                uint currentAmountFee = DesynSafeMath.bmul(currentAmount, feeRatio);

                _pushUnderlying(bPool, t, address(this), currentAmountFee);
                tokensAmount[i] = currentAmountFee;
                IERC20(t).safeApprove(self.vaultAddress(), 0);
                IERC20(t).safeApprove(self.vaultAddress(), currentAmountFee);
            }

            if(isPerfermance) {
                IVault(self.vaultAddress()).depositIssueRedeemPToken(poolTokens, tokensAmount, new uint[](poolTokens.length), isPerfermance);
            } else {
                IVault(self.vaultAddress()).depositIssueRedeemPToken(poolTokens, tokensAmount, tokensAmount, isPerfermance);
            }
            
        }
    }

    function WhitelistHandle(
        bool bool1,
        bool bool2,
        address adr
    ) external pure {
        require(bool1, "ERR_CANNOT_WHITELIST_LPS");
        require(bool2, "ERR_LP_NOT_WHITELISTED");
        require(adr != address(0), "ERR_INVALID_ADDRESS");
    }

    function _pullUnderlying(
        IBPool bPool,
        address erc20,
        address from,
        uint amount
    ) internal {
        uint tokenBalance = bPool.getBalance(erc20);
        uint tokenWeight = bPool.getDenormalizedWeight(erc20);

        IERC20(erc20).safeTransferFrom(from, address(this), amount);
        bPool.rebind(erc20, DesynSafeMath.badd(tokenBalance, amount), tokenWeight);
    }

    function _pushUnderlying(
        IBPool bPool,
        address erc20,
        address to,
        uint amount
    ) internal {
        uint tokenBalance = bPool.getBalance(erc20);
        uint tokenWeight = bPool.getDenormalizedWeight(erc20);
        bPool.rebind(erc20, DesynSafeMath.bsub(tokenBalance, amount), tokenWeight);
        IERC20(erc20).safeTransfer(to, amount);
    }
}

// File: contracts/libraries/RightsManager.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;

// Needed to handle structures externally
pragma experimental ABIEncoderV2;

/**
 * @author Desyn Labs
 * @title Manage Configurable Rights for the smart pool
 *                         by default, it is off on initialization and can only be turned on
 *      canWhitelistLPs - can limit liquidity providers to a given set of addresses
 *      canChangeCap - can change the BSP cap (max # of pool tokens)
 *      canChangeFloor - can change the BSP floor for Closure ETF (min # of pool tokens)
 */
library RightsManager {
    // Type declarations

    enum Permissions {
        WHITELIST_LPS,
        TOKEN_WHITELISTS
    }

    struct Rights {
        bool canWhitelistLPs;
        bool canTokenWhiteLists;
    }

    // State variables (can only be constants in a library)
    bool public constant DEFAULT_CAN_WHITELIST_LPS = false;
    bool public constant DEFAULT_CAN_TOKEN_WHITELISTS = false;

    // bool public constant DEFAULT_CAN_CHANGE_CAP = false;
    // bool public constant DEFAULT_CAN_CHANGE_FLOOR = false;

    // Functions

    /**
     * @notice create a struct from an array (or return defaults)
     * @dev If you pass an empty array, it will construct it using the defaults
     * @param a - array input
     * @return Rights struct
     */
    function constructRights(bool[] calldata a) external pure returns (Rights memory) {
        if (a.length < 2) {
            return
                Rights(
                    DEFAULT_CAN_WHITELIST_LPS,
                    DEFAULT_CAN_TOKEN_WHITELISTS
                );
        } else {
            // return Rights(a[0], a[1], a[2], a[3], a[4], a[5], a[6]);
            return Rights(a[0], a[1]);
        }
    }

    /**
     * @notice Convert rights struct to an array (e.g., for events, GUI)
     * @dev avoids multiple calls to hasPermission
     * @param rights - the rights struct to convert
     * @return boolean array containing the rights settings
     */
    function convertRights(Rights calldata rights) external pure returns (bool[] memory) {
        bool[] memory result = new bool[](2);

        result[0] = rights.canWhitelistLPs;
        result[1] = rights.canTokenWhiteLists;

        return result;
    }

    // Though it is actually simple, the number of branches triggers code-complexity
    /* solhint-disable code-complexity */

    /**
     * @notice Externally check permissions using the Enum
     * @param self - Rights struct containing the permissions
     * @param permission - The permission to check
     * @return Boolean true if it has the permission
     */
    function hasPermission(Rights calldata self, Permissions permission) external pure returns (bool) {
        if (Permissions.WHITELIST_LPS == permission) {
            return self.canWhitelistLPs;
        } else if (Permissions.TOKEN_WHITELISTS == permission) {
            return self.canTokenWhiteLists;
        }
    }

    /* solhint-enable code-complexity */
}

// File: contracts/base/Logs.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;

contract Logs {
    event LOG_CALL(bytes4 indexed sig, address indexed caller, bytes data) anonymous;

    modifier _logs_() {
        emit LOG_CALL(msg.sig, msg.sender, msg.data);
        _;
    }
}

// File: contracts/interfaces/IERC20.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;

// Interface declarations

/* solhint-disable func-order */

interface IERC20 {
    // 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, uint value);

    // 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, uint value);

    // Returns the amount of tokens in existence
    function totalSupply() external view returns (uint);

    // Returns the amount of tokens owned by account
    function balanceOf(address account) external view returns (uint);

    // Returns the decimals of tokens
    function decimals() external view returns (uint8);

    function symbol() external view returns (string memory);

    // 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 (uint);

    // Sets amount as the allowance of spender over the caller’s tokens
    // Returns a boolean value indicating whether the operation succeeded
    // Emits an Approval event.
    function approve(address spender, uint amount) external returns (bool);

    // 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, uint amount) external returns (bool);

    // 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,
        uint amount
    ) external returns (bool);
}

// File: contracts/interfaces/IConfigurableRightsPool.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;

// Interface declarations

// Introduce to avoid circularity (otherwise, the CRP and SmartPoolManager include each other)
// Removing circularity allows flattener tools to work, which enables Etherscan verification
interface IConfigurableRightsPool {
    function mintPoolShareFromLib(uint amount) external;

    function pushPoolShareFromLib(address to, uint amount) external;

    function pullPoolShareFromLib(address from, uint amount) external;

    function burnPoolShareFromLib(uint amount) external;

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

    function totalSupply() external view returns (uint);

    function adminList(address) external view returns (bool);

    function getController() external view returns (address);

    function vaultAddress() external view returns (address);
}

// File: contracts/libraries/DesynSafeMath.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;

// Imports

import "./DesynConstants.sol";

/**
 * @author Desyn Labs
 * @title SafeMath - wrap Solidity operators to prevent underflow/overflow
 * @dev badd and bsub are basically identical to OpenZeppelin SafeMath; mul/div have extra checks
 */
library DesynSafeMath {
    /**
     * @notice Safe addition
     * @param a - first operand
     * @param b - second operand
     * @dev if we are adding b to a, the resulting sum must be greater than a
     * @return - sum of operands; throws if overflow
     */
    function badd(uint a, uint b) internal pure returns (uint) {
        uint c = a + b;
        require(c >= a, "ERR_ADD_OVERFLOW");
        return c;
    }

    /**
     * @notice Safe unsigned subtraction
     * @param a - first operand
     * @param b - second operand
     * @dev Do a signed subtraction, and check that it produces a positive value
     *      (i.e., a - b is valid if b <= a)
     * @return - a - b; throws if underflow
     */
    function bsub(uint a, uint b) internal pure returns (uint) {
        (uint c, bool negativeResult) = bsubSign(a, b);
        require(!negativeResult, "ERR_SUB_UNDERFLOW");
        return c;
    }

    /**
     * @notice Safe signed subtraction
     * @param a - first operand
     * @param b - second operand
     * @dev Do a signed subtraction
     * @return - difference between a and b, and a flag indicating a negative result
     *           (i.e., a - b if a is greater than or equal to b; otherwise b - a)
     */
    function bsubSign(uint a, uint b) internal pure returns (uint, bool) {
        if (b <= a) {
            return (a - b, false);
        } else {
            return (b - a, true);
        }
    }

    /**
     * @notice Safe multiplication
     * @param a - first operand
     * @param b - second operand
     * @dev Multiply safely (and efficiently), rounding down
     * @return - product of operands; throws if overflow or rounding error
     */
    function bmul(uint a, uint b) internal pure returns (uint) {
        // Gas optimization (see github.com/OpenZeppelin/openzeppelin-contracts/pull/522)
        if (a == 0) {
            return 0;
        }

        // Standard overflow check: a/a*b=b
        uint c0 = a * b;
        require(c0 / a == b, "ERR_MUL_OVERFLOW");

        // Round to 0 if x*y < BONE/2?
        uint c1 = c0 + (DesynConstants.BONE / 2);
        require(c1 >= c0, "ERR_MUL_OVERFLOW");
        uint c2 = c1 / DesynConstants.BONE;
        return c2;
    }

    /**
     * @notice Safe division
     * @param dividend - first operand
     * @param divisor - second operand
     * @dev Divide safely (and efficiently), rounding down
     * @return - quotient; throws if overflow or rounding error
     */
    function bdiv(uint dividend, uint divisor) internal pure returns (uint) {
        require(divisor != 0, "ERR_DIV_ZERO");

        // Gas optimization
        if (dividend == 0) {
            return 0;
        }

        uint c0 = dividend * DesynConstants.BONE;
        require(c0 / dividend == DesynConstants.BONE, "ERR_DIV_INTERNAL"); // bmul overflow

        uint c1 = c0 + (divisor / 2);
        require(c1 >= c0, "ERR_DIV_INTERNAL"); //  badd require

        uint c2 = c1 / divisor;
        return c2;
    }

    /**
     * @notice Safe unsigned integer modulo
     * @dev Returns the remainder of dividing two unsigned integers.
     *      Reverts 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).
     *
     * @param dividend - first operand
     * @param divisor - second operand -- cannot be zero
     * @return - quotient; throws if overflow or rounding error
     */
    function bmod(uint dividend, uint divisor) internal pure returns (uint) {
        require(divisor != 0, "ERR_MODULO_BY_ZERO");

        return dividend % divisor;
    }

    /**
     * @notice Safe unsigned integer max
     * @dev Returns the greater of the two input values
     *
     * @param a - first operand
     * @param b - second operand
     * @return - the maximum of a and b
     */
    function bmax(uint a, uint b) internal pure returns (uint) {
        return a >= b ? a : b;
    }

    /**
     * @notice Safe unsigned integer min
     * @dev returns b, if b < a; otherwise returns a
     *
     * @param a - first operand
     * @param b - second operand
     * @return - the lesser of the two input values
     */
    function bmin(uint a, uint b) internal pure returns (uint) {
        return a < b ? a : b;
    }

    /**
     * @notice Safe unsigned integer average
     * @dev Guard against (a+b) overflow by dividing each operand separately
     *
     * @param a - first operand
     * @param b - second operand
     * @return - the average of the two values
     */
    function baverage(uint a, uint b) internal pure returns (uint) {
        // (a + b) / 2 can overflow, so we distribute
        return (a / 2) + (b / 2) + (((a % 2) + (b % 2)) / 2);
    }

    /**
     * @notice Babylonian square root implementation
     * @dev (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
     * @param y - operand
     * @return z - the square root result
     */
    function sqrt(uint y) internal pure returns (uint z) {
        if (y > 3) {
            z = y;
            uint x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
}

// File: contracts/libraries/SafeMath.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @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, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint a, uint b) internal pure returns (uint) {
        uint 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(uint a, uint b) internal pure returns (uint) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     */
    function sub(
        uint a,
        uint b,
        string memory errorMessage
    ) internal pure returns (uint) {
        require(b <= a, errorMessage);
        uint c = a - b;

        return c;
    }

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

        uint c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts 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(uint a, uint b) internal pure returns (uint) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message 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(
        uint a,
        uint b,
        string memory errorMessage
    ) internal pure returns (uint) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts 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(uint a, uint b) internal pure returns (uint) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message 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(
        uint a,
        uint b,
        string memory errorMessage
    ) internal pure returns (uint) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

// File: contracts/libraries/SafeERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import {IERC20} from "../interfaces/IERC20.sol";
import {SafeMath} from "./SafeMath.sol";
import {Address} from "./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 uint;
    using Address for address;

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

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

    function safeApprove(
        IERC20 token,
        address spender,
        uint value
    ) internal {
        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 callOptionalReturn(IERC20 token, bytes memory data) private {
        require(address(token).isContract(), "SafeERC20: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = address(token).call(data);
        require(success, "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: contracts/interfaces/IBFactory.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

interface IBPool {
    function rebind(
        address token,
        uint balance,
        uint denorm
    ) external;

    function execute(
        address _target,
        uint _value,
        bytes calldata _data
    ) external returns (bytes memory _returnValue);

    function bind(
        address token,
        uint balance,
        uint denorm
    ) external;

    function unbind(address token) external;

    function unbindPure(address token) external;

    function isBound(address token) external view returns (bool);

    function getBalance(address token) external view returns (uint);

    function totalSupply() external view returns (uint);

    function isPublicSwap() external view returns (bool);

    function getDenormalizedWeight(address token) external view returns (uint);

    function getTotalDenormalizedWeight() external view returns (uint);

    function EXIT_FEE() external view returns (uint);

    function getCurrentTokens() external view returns (address[] memory tokens);

    function setController(address owner) external;
}

interface IBFactory {
    function newLiquidityPool() external returns (IBPool);

    function setBLabs(address b) external;

    function collect(IBPool pool) external;

    function isBPool(address b) external view returns (bool);

    function getBLabs() external view returns (address);

    function getVault() external view returns (address);

    function getUserVault() external view returns (address);

    function getVaultAddress() external view returns (address);

    function getOracleAddress() external view returns (address);

    function isTokenWhitelistedForVerify(uint sort, address token) external view returns (bool);

    function isTokenWhitelistedForVerify(address token) external view returns (bool);

    function getModuleStatus(address etf, address module) external view returns (bool);

    function isPaused() external view returns (bool);
}

interface IVault {
    function depositManagerToken(address[] calldata poolTokens, uint[] calldata tokensAmount) external;

    function depositIssueRedeemPToken(
        address[] calldata poolTokens,
        uint[] calldata tokensAmount,
        uint[] calldata tokensAmountP,
        bool isPerfermance
    ) external;

    function managerClaim(address pool) external;

    function getManagerClaimBool(address pool) external view returns (bool);
}

interface IUserVault {
    function recordTokenInfo(
        address kol,
        address user,
        address[] calldata poolTokens,
        uint[] calldata tokensAmount
    ) external;
}

interface Oracles {
    function getPrice(address tokenAddress) external returns (uint price);

    function getAllPrice(address[] calldata poolTokens, uint[] calldata tokensAmount) external returns (uint);
}
// File: contracts/libraries/DesynConstants.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;

/**
 * @author Desyn Labs
 * @title Put all the constants in one place
 */

library DesynConstants {
    // State variables (must be constant in a library)

    // where numeric 1 = 10 ** 18
    uint public constant BONE = 10**18;
    uint public constant MIN_WEIGHT = BONE;
    uint public constant MAX_WEIGHT = BONE * 50;
    uint public constant MAX_TOTAL_WEIGHT = BONE * 50;
    uint public constant MIN_BALANCE = 0;
    uint public constant MAX_BALANCE = BONE * 10**12;
    uint public constant MIN_POOL_SUPPLY = BONE * 100;
    uint public constant MAX_POOL_SUPPLY = BONE * 10**9;
    uint public constant MIN_FEE = BONE / 10**6;
    uint public constant MAX_FEE = BONE / 10;
    //Fee Set
    uint public constant MANAGER_MIN_FEE = 0;
    uint public constant MANAGER_MAX_FEE = BONE / 10;
    uint public constant ISSUE_MIN_FEE = 0;
    uint public constant ISSUE_MAX_FEE = BONE / 10;
    uint public constant REDEEM_MIN_FEE = 0;
    uint public constant REDEEM_MAX_FEE = BONE / 10;
    uint public constant PERFERMANCE_MIN_FEE = 0;
    uint public constant PERFERMANCE_MAX_FEE = BONE / 2;
    // EXIT_FEE must always be zero, or ConfigurableRightsPool._pushUnderlying will fail
    uint public constant EXIT_FEE = 0;
    uint public constant MAX_IN_RATIO = BONE / 2;
    uint public constant MAX_OUT_RATIO = (BONE / 3) + 1 wei;
    // Must match BConst.MIN_BOUND_TOKENS and BConst.MAX_BOUND_TOKENS
    uint public constant MIN_ASSET_LIMIT = 1;
    uint public constant MAX_ASSET_LIMIT = 16;
    uint public constant MAX_UINT = uint(-1);
    uint public constant MAX_COLLECT_PERIOD = 60 days;
}

// File: contracts/libraries/Address.sol



// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @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) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            codehash := extcodehash(account)
        }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @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, uint 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");
    }

    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    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,
        uint 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,
        uint value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(
        address target,
        bytes memory data,
        uint weiValue,
        string memory errorMessage
    ) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

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