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

pragma experimental ABIEncoderV2;
import {RightsManager} from "../libraries/RightsManager.sol";
import {SmartPoolManager} from "../libraries/SmartPoolManager.sol";
import {DesynSafeMath} from "../libraries/DesynSafeMath.sol";

import "../libraries/SafeERC20.sol";
import "../interfaces/IWETH.sol";
import "../utils/DesynReentrancyGuard.sol";

abstract contract IAggregator {
    enum SwapType {
        UNISWAPV2,
        UNISWAPV3,
        ONEINCH,
        CURVE
    }

    struct SwapInfoBase {
        address aggregator; // the swap router to use
        address rebalanceAdapter;
        SwapType swapType;
    }

    struct SwapData {
        uint256 quantity;
        bytes data; // v3: (uint,uint256[]) v2: (uint256,address[])
    }

    function swapExactTokensForTokens(uint256, uint256, address[] calldata, address, uint256) external virtual;

    function uniswapV3Swap(uint256, uint256, uint256[] calldata) external virtual;
}

abstract contract DesynOwnable {
    function setController(address controller) external virtual;
    function setManagersInfo(address[] memory _owners, uint[] memory _ownerPercentage) external virtual;
}

abstract contract AbstractPool is IERC20, DesynOwnable {
    function setPublicSwap(bool public_) external virtual;

    function joinPool(
        uint poolAmountOut,
        uint[] calldata maxAmountsIn,
        address kol,
        address user
    ) external virtual;

    function exitPool(uint poolAmountIn, uint[] calldata minAmountsOut, address user) external virtual;
}

abstract contract LiquidityPoolActions is AbstractPool {
    function finalize() external virtual;

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

    function rebind(
        address token,
        uint balance,
        uint denorm
    ) external virtual;

    function unbind(address token) external virtual;

    function isBound(address t) external view virtual returns (bool);

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

    function getFinalTokens() external view virtual returns (address[] memory);

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

abstract contract FactoryActions {
    function newLiquidityPool() external virtual returns (LiquidityPoolActions);
    function getModuleStatus(address etf, address module) external view virtual returns (bool);
    function isTokenWhitelistedForVerify(address token) external view virtual returns (bool);
}

abstract contract RebalaceAdapter {
    enum SwapType {
        UNISWAPV2,
        UNISWAPV3,
        ONEINCH
    }

    struct RebalanceInfo {
        address etf; // etf address
        address token0;
        address token1;
        address aggregator; // the swap router to use
        SwapType swapType;
        uint256 quantity;
        bytes data; // v3: (uint,uint256[]) v2: (uint256,address[])
    }
    function rebalance(RebalanceInfo calldata rebalanceInfo) external virtual;
    function approve(address etf, address token, address spender, uint256 amount) external virtual;
    function isRouterApproved(address router) external virtual returns (bool);
}

abstract contract IConfigurableRightsPool is AbstractPool {
    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 createPool(
        address creator,
        uint initialSupply,
        uint collectPeriod,
        SmartPoolManager.Period period,
        SmartPoolManager.PoolTokenRange memory tokenRange
    ) external virtual;

    function createPool(uint initialSupply) external virtual;

    function setCap(uint newCap) external virtual;

    function commitAddToken(
        address token,
        uint balance,
        uint denormalizedWeight
    ) external virtual;

    function applyAddToken() external virtual;

    function whitelistLiquidityProvider(address provider) external virtual;

    function removeWhitelistedLiquidityProvider(address provider) external virtual;

    function bPool() external view virtual returns (LiquidityPoolActions);

    function addTokenToWhitelist(uint[] memory sort, address[] memory token) external virtual;
    function claimManagerFee() external virtual;

    function etype() external virtual returns(SmartPoolManager.Etypes);

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

    function snapshotBeginAssets() external virtual;

    function snapshotEndAssets() external virtual;

    function etfStatus() external virtual returns(SmartPoolManager.Status memory);
}

abstract contract ICRPFactory {
    function newCrp(
        address factoryAddress,
        IConfigurableRightsPool.PoolParams calldata params,
        RightsManager.Rights calldata rights,
        SmartPoolManager.KolPoolParams calldata kolPoolParams,
        address[] memory owners,
        uint[] memory ownerPercentage
    ) external virtual returns (IConfigurableRightsPool);
}

abstract contract IVault {
    function userVault() external virtual returns(address);
}

abstract contract IUserVault {
    function kolClaim(address pool) external virtual;

    function managerClaim(address pool) external virtual;

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

interface ICurve {
    function exchange_underlying(int128 i, int128 j, uint256 dx, uint256 min_dy) external;

    function coins(uint i) external view returns(address);    
}

/********************************** WARNING **********************************/
//                                                                           //
// This contract is only meant to be used in conjunction with ds-proxy.      //
// Calling this contract directly will lead to loss of funds.                //
//                                                                           //
/********************************** WARNING **********************************/

contract Actions is DesynReentrancyGuard {
    using SafeERC20 for IERC20;
    using DesynSafeMath for uint256;
    
    IERC20 public constant STBT = IERC20(0x530824DA86689C9C17CdC2871Ff29B058345b44a);
    address public constant FACTORY = 0xdE6b117384452b21F5a643E56952593B88110e78;
    address constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
    address constant WETH = 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1;

    event SmartJoinPool(address caller, address token, uint amount, address shareReturn, uint amountReturn);
    event SmartExitPool(address caller, address share, uint shareAmount, address tokenReturn, uint amountReturn);
    
    // --- Pool Creation ---

    function create(
        FactoryActions factory,
        address[] calldata tokens,
        uint[] calldata balances,
        uint[] calldata weights,
        bool finalize
    ) external returns (LiquidityPoolActions pool) {
        require(tokens.length == balances.length, "ERR_LENGTH_MISMATCH");
        require(tokens.length == weights.length, "ERR_LENGTH_MISMATCH");

        pool = factory.newLiquidityPool();

        for (uint i = 0; i < tokens.length; i++) {
            IERC20 token = IERC20(tokens[i]);
            token.safeTransferFrom(msg.sender, address(this), balances[i]);
            token.safeApprove(address(pool), 0);
            token.safeApprove(address(pool), balances[i]);

            pool.bind(tokens[i], balances[i], weights[i]);
        }

        if (finalize) {
            pool.finalize();
            require(pool.transfer(msg.sender, pool.balanceOf(address(this))), "ERR_TRANSFER_FAILED");
        } else {
            pool.setPublicSwap(true);
        }
    }

    function createSmartPool(
        ICRPFactory factory,
        FactoryActions coreFactory,
        IConfigurableRightsPool.PoolParams calldata poolParams,
        IConfigurableRightsPool.CrpParams calldata crpParams,
        RightsManager.Rights calldata rights,
        SmartPoolManager.KolPoolParams calldata kolPoolParams,
        address[] memory owners,
        uint[] memory ownerPercentage,
        SmartPoolManager.PoolTokenRange memory tokenRange
    ) external returns (IConfigurableRightsPool crp) {
        require(poolParams.constituentTokens.length == poolParams.tokenBalances.length, "ERR_LENGTH_MISMATCH");
        require(poolParams.constituentTokens.length == poolParams.tokenWeights.length, "ERR_LENGTH_MISMATCH");

        crp = factory.newCrp(address(coreFactory), poolParams, rights, kolPoolParams, owners, ownerPercentage);

        for (uint i = 0; i < poolParams.constituentTokens.length; i++) {
            IERC20 token = IERC20(poolParams.constituentTokens[i]);
            token.safeTransferFrom(msg.sender, address(this), poolParams.tokenBalances[i]);
            token.safeApprove(address(crp), 0);
            token.safeApprove(address(crp), poolParams.tokenBalances[i]);
        }

        crp.createPool(msg.sender,crpParams.initialSupply, crpParams.collectPeriod, crpParams.period, tokenRange);
        require(crp.transfer(msg.sender, crpParams.initialSupply), "ERR_TRANSFER_FAILED");
        crp.setController(msg.sender);
        // DSProxy instance keeps pool ownership to enable management
    }

    // --- Joins ---

    function joinPool(
        LiquidityPoolActions pool,
        uint poolAmountOut,   
        uint[] calldata maxAmountsIn
    ) external {
        address[] memory tokens = pool.getFinalTokens();
        _join(pool, tokens, poolAmountOut, maxAmountsIn, msg.sender);
    }

    function autoExitSmartPool(
        IConfigurableRightsPool pool,
        uint poolAmountIn,
        uint[] memory minAmountsOut,
        uint minSwapReturn,
        address handleToken,
        IAggregator.SwapInfoBase calldata swapBase,
        IAggregator.SwapData[] memory swapDatas) external payable lock {
        address[] memory tokens = pool.bPool().getCurrentTokens();
        uint len = swapDatas.length;
        require(FactoryActions(FACTORY).isTokenWhitelistedForVerify(handleToken),"ERR_TOKEN_NOT_WHITELISTED");
        require(tokens.length == swapDatas.length,"ERR_TOKENLENGTH_MISMATCH");
        require(tokens.length == minAmountsOut.length,"ERR_TOKENLENGTH_MISMATCH");

        IERC20 receiveToken = IERC20(handleToken);
        if (handleToken == NATIVE_TOKEN) {
            receiveToken = IERC20(WETH);
        }
        uint preReceiveAmount = receiveToken.balanceOf(address(this));
        uint[] memory initialAmounts = new uint[](len);
        for(uint i = 0; i < len; i++){
            initialAmounts[i] = IERC20(tokens[i]).balanceOf(address(this));
        }

        _exit(pool, poolAmountIn, minAmountsOut, tokens, true);

        for(uint j = 0; j < len; j++) {
            IAggregator.SwapData memory swapData = swapDatas[j];
            IERC20 swapToken = IERC20(tokens[j]);
            if(tokens[j] != address(receiveToken)){
                swapData.quantity = SafeMath.sub(swapToken.balanceOf(address(this)), initialAmounts[j]);
                swapToken.safeApprove(swapBase.aggregator, 0);
                swapToken.safeApprove(swapBase.aggregator, swapData.quantity);
                _makeSwap(swapBase, swapData, receiveToken);
            }
        }
        uint receiveAmount = SafeMath.sub(receiveToken.balanceOf(address(this)), preReceiveAmount);
        require(minSwapReturn <= receiveAmount,"ERR_RECEIVE_AMOUNT_TO_SMALL");
        if (handleToken == NATIVE_TOKEN) {
            IWETH(WETH).withdraw(receiveAmount);
            msg.sender.transfer(receiveAmount);
        } else {
            receiveToken.safeTransfer(msg.sender, receiveAmount);
        }

        emit SmartExitPool(msg.sender, address(pool) ,poolAmountIn, handleToken, receiveAmount);
    }

    function joinSmartPool(
        IConfigurableRightsPool pool,
        uint poolAmountOut,
        uint[] calldata maxAmountsIn,
        address kol
    ) external {
        address[] memory tokens = pool.bPool().getCurrentTokens();
        _join(pool, tokens, poolAmountOut, maxAmountsIn, kol);
    }

    struct JoinVar {
        uint actualShareAmountOut;
        uint issueFee;
        uint totalPoolShares;
        LiquidityPoolActions bPool;
    }

    function autoJoinSmartPool(
        IConfigurableRightsPool pool,
        address kol,
        uint issueAmount,
        uint minPoolAmountOut,
        address handleToken,
        IAggregator.SwapInfoBase calldata swapBase,
        IAggregator.SwapData[] memory swapDatas
    ) external payable lock {
        require(FactoryActions(FACTORY).isTokenWhitelistedForVerify(handleToken), "ERR_TOKEN_NOT_WHITELISTED");
        address[] memory poolTokens = pool.bPool().getCurrentTokens();
        require(poolTokens.length == swapDatas.length,"ERR_TOKENLENGTH_MISMATCH");
        uint[] memory maxAmountsIn = new uint[](poolTokens.length);
        address user = msg.sender;

        // Transfer ETH into the contract and authorize the aggregator to operate
        IERC20 issueToken;
        if (handleToken == NATIVE_TOKEN) {
            require(msg.value > 0 && msg.value == issueAmount, 'ERROR_ETH');
            IWETH(WETH).deposit{value: msg.value}();

            issueToken = IERC20(WETH);
        } else {
            issueToken = IERC20(handleToken);
            issueToken.safeTransferFrom(user, address(this), issueAmount);
        }
   
        issueToken.safeApprove(swapBase.aggregator, 0);
        issueToken.safeApprove(swapBase.aggregator, issueAmount);

        JoinVar memory joinVar = JoinVar({
            actualShareAmountOut: type(uint).max,
            issueFee:pool.etfStatus().issueFee,
            totalPoolShares:pool.totalSupply(),
            bPool:pool.bPool()
        });

        // Perform a swap and authorize the pool call
        for (uint i; i < poolTokens.length; i++) {
            IAggregator.SwapData memory swapData = swapDatas[i];
        
            poolTokens[i] == address(issueToken)
                ? maxAmountsIn[i] = swapData.quantity
                : maxAmountsIn[i] = _makeSwap(swapBase, swapData, IERC20(poolTokens[i]));

            uint shareAmountOutPerToken = _calculateShare(joinVar.bPool,joinVar.totalPoolShares,joinVar.issueFee, poolTokens[i], maxAmountsIn[i]);
            if(shareAmountOutPerToken < joinVar.actualShareAmountOut) joinVar.actualShareAmountOut = shareAmountOutPerToken;
        
            IERC20(poolTokens[i]).safeApprove(address(pool), 0);
            IERC20(poolTokens[i]).safeApprove(address(pool), maxAmountsIn[i]);
        }

        // Adding Tokens to a Pool
        require(minPoolAmountOut <= joinVar.actualShareAmountOut,"ERR_SHARE_AMOUNT_TO_SMALL");
        pool.joinPool(joinVar.actualShareAmountOut, maxAmountsIn, kol, user); 

        // Return excess funds to users
        for (uint i; i < poolTokens.length; i++) {
            IERC20 token = IERC20(poolTokens[i]);
            if (token.balanceOf(address(this)) > 0 && token != STBT) token.safeTransfer(user, token.balanceOf(address(this)));
        }

        issueToken.safeTransfer(user, issueToken.balanceOf(address(this)));
        require(pool.transfer(user, pool.balanceOf(address(this))), "ERR_TRANSFER_FAILED");
        
        emit SmartJoinPool(msg.sender, handleToken, issueAmount, address(pool), joinVar.actualShareAmountOut);    
    }

    function exitPool(
        IConfigurableRightsPool pool,
        uint poolAmountIn,
        uint[] memory minAmountsOut
    ) external {
        address[] memory tokens = pool.bPool().getCurrentTokens();
        _exit(pool, poolAmountIn, minAmountsOut, tokens, false);
    }

    // --- Pool management (common) ---
    function setPublicSwap(AbstractPool pool, bool publicSwap) external {
        pool.setPublicSwap(publicSwap);
    }

    function setController(AbstractPool pool, address newController) external {
        _beforeOwnerChange(address(pool));
        pool.setController(newController);
    }

    function setManagersInfo(AbstractPool pool ,address[] memory _owners, uint[] memory _ownerPercentage) public {
        _beforeOwnerChange(address(pool));
        pool.setManagersInfo(_owners, _ownerPercentage);
    }

    function _beforeOwnerChange(address pool) internal {
        claimManagementFee(IConfigurableRightsPool(pool));
        _claimManagersReward(pool);
    }

    function snapshotBeginAssets(IConfigurableRightsPool pool) external virtual {
        pool.snapshotBeginAssets();
    }

    function snapshotEndAssets(IConfigurableRightsPool pool) external virtual {
        pool.snapshotEndAssets();
    }

    function approveUnderlying(RebalaceAdapter rebalanceAdapter, address etf, address token, address spender, uint amount) external {
        rebalanceAdapter.approve(etf, token, spender, amount);
    }

    function rebalance(RebalaceAdapter rebalanceAdapter, RebalaceAdapter.RebalanceInfo calldata rebalanceInfo) external {
        rebalanceAdapter.rebalance(rebalanceInfo);
    }

    // --- Private pool management ---

    function finalize(LiquidityPoolActions pool) external {
        pool.finalize();
        require(pool.transfer(msg.sender, pool.balanceOf(address(this))), "ERR_TRANSFER_FAILED");
    }

    // --- Smart pool management ---
    function setCap(IConfigurableRightsPool crp, uint newCap) external {
        crp.setCap(newCap);
    }

    function whitelistLiquidityProvider(IConfigurableRightsPool crp, address provider) external {
        crp.whitelistLiquidityProvider(provider);
    }

    function removeWhitelistedLiquidityProvider(IConfigurableRightsPool crp, address provider) external {
        crp.removeWhitelistedLiquidityProvider(provider);
    }

    function addTokenToWhitelist(IConfigurableRightsPool crp, uint[] memory sort, address[] memory token) public {
        crp.addTokenToWhitelist(sort, token);
    }

    function claimManagementFee(IConfigurableRightsPool crp) public {
         crp.claimManagerFee();
    }
    // --- Internals ---

    function _safeApprove(
        IERC20 token,
        address spender,
        uint amount
    ) internal {
        if (token.allowance(address(this), spender) > 0) {
            token.approve(spender, 0);
        }
        token.approve(spender, amount);
    }

    function _join(
        AbstractPool pool,
        address[] memory tokens,
        uint poolAmountOut,
        uint[] memory maxAmountsIn,
        address kol
    ) internal {
        require(maxAmountsIn.length == tokens.length, "ERR_LENGTH_MISMATCH");

        for (uint i = 0; i < tokens.length; i++) {
            IERC20 token = IERC20(tokens[i]);
            token.safeTransferFrom(msg.sender, address(this), maxAmountsIn[i]);

            token.safeApprove(address(pool), 0);
            token.safeApprove(address(pool), maxAmountsIn[i]);
        }

        pool.joinPool(poolAmountOut, maxAmountsIn, kol, msg.sender);

        for (uint i = 0; i < tokens.length; i++) {
            IERC20 token = IERC20(tokens[i]);
            if (token.balanceOf(address(this)) > 0) {
                token.safeTransfer(msg.sender, token.balanceOf(address(this)));
            }
        }
        require(pool.transfer(msg.sender, pool.balanceOf(address(this))), "ERR_TRANSFER_FAILED");
    }

    function _exit(
        IConfigurableRightsPool pool,
        uint poolAmountIn,
        uint[] memory minAmountsOut,
        address[] memory tokens,
        bool isSmartMode
    ) internal {
        uint shareToBurn = poolAmountIn;

        if (pool.etype() == SmartPoolManager.Etypes.CLOSED) {
            shareToBurn = pool.balanceOf(msg.sender);
        }

        require(pool.transferFrom(msg.sender, address(this), shareToBurn), "ERR_TRANSFER_FAILED");
        // _safeApprove(pool, address(pool), shareToBurn);
        pool.exitPool(shareToBurn, minAmountsOut, msg.sender);
        if(!isSmartMode){
            for (uint i = 0; i < tokens.length; i++) {
                IERC20 token = IERC20(tokens[i]);
                if (token.balanceOf(address(this)) > 0) {
                    token.safeTransfer(msg.sender, token.balanceOf(address(this)));
                }
            }
        }
    }

    function claimKolReward(address pool) public {
        address uservault = _getUserVault(pool);
        IUserVault(uservault).kolClaim(pool);
    }

    function claimManagersReward(address vault_,address pool) external {
        IUserVault(vault_).managerClaim(pool);
    }

    function _claimManagersReward(address pool) internal {
        address vault = _getVault(pool);
        address uservault = _getUserVault(pool);

        bool vaultCanClaim = IUserVault(vault).getManagerClaimBool(pool);
        bool uservaultCanClaim = IUserVault(uservault).getManagerClaimBool(pool);
        SmartPoolManager.Etypes type_ = IConfigurableRightsPool(pool).etype();

        if(type_ == SmartPoolManager.Etypes.OPENED && vaultCanClaim) IUserVault(vault).managerClaim(pool);
        if(type_ == SmartPoolManager.Etypes.CLOSED && uservaultCanClaim) IUserVault(uservault).managerClaim(pool);
    }
    
    function _makeSwap(IAggregator.SwapInfoBase calldata swapBase, IAggregator.SwapData memory swapData, IERC20 swapAcceptToken) internal returns (uint256 postSwap) {
        require(FactoryActions(FACTORY).getModuleStatus(address(0), swapBase.rebalanceAdapter), 'MODULE_ILLEGAL');
        require(RebalaceAdapter(swapBase.rebalanceAdapter).isRouterApproved(swapBase.aggregator), 'ROUTER_ILLEGAL');

        uint preSwap = swapAcceptToken.balanceOf(address(this));

        if (swapBase.swapType == IAggregator.SwapType.UNISWAPV3) {
            (uint256 minReturn, uint256[] memory pools) = abi.decode(swapData.data, (uint256, uint256[]));
            IAggregator(swapBase.aggregator).uniswapV3Swap(swapData.quantity, minReturn, pools);
        } else if (swapBase.swapType == IAggregator.SwapType.UNISWAPV2) {
            (uint256 minReturn, address[] memory paths) = abi.decode(swapData.data, (uint256, address[]));
            IAggregator(swapBase.aggregator).swapExactTokensForTokens(swapData.quantity, minReturn, paths, address(this), SafeMath.add(block.timestamp, 1800));
        } else if (swapBase.swapType == IAggregator.SwapType.ONEINCH){
            Address.functionCallWithValue(swapBase.aggregator, swapData.data, 0);
            // _validateData(swapBase.quantity, swapBase.data, address(this));
        } else if (swapBase.swapType == IAggregator.SwapType.CURVE){
            // only supports stbt/usdc/usdt/dai curve pool
            (int128 i, int128 j, uint256 dx, uint256 minDy) = abi.decode(swapData.data, (int128, int128, uint256, uint256));
            ICurve(swapBase.aggregator).exchange_underlying(i, j, dx, minDy);
        } else {
            revert("ERR_INVALID_SWAP_TYPE");
        }
        
        postSwap = SafeMath.sub(swapAcceptToken.balanceOf(address(this)), preSwap);
    }

    function _getVault(address pool) internal view  returns(address){
        return IConfigurableRightsPool(pool).vaultAddress();
    }
    function _getUserVault(address pool) internal  returns(address){
        address vault = _getVault(pool);
        return IVault(vault).userVault();
    }

    function _calculateShare(LiquidityPoolActions bPool,uint totalPoolShares, uint issueFee, address t, uint actualTokenAmountIn) internal view returns(uint) {
        uint totalTokenBalance = bPool.getBalance(t);
        uint issueFeeRate = issueFee.bmul(1000);
        uint share = (totalPoolShares.bsub(1).bmul(actualTokenAmountIn) * (uint(1000).bsub(issueFeeRate))).bdiv((1000 * totalTokenBalance.badd(1)));
        return share;
    }

    receive() external payable {}
}

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;

import "../base/Math.sol";
import "../base/Num.sol";

// Contract to wrap internal functions for testing

contract TMath is Math {
    function calc_btoi(uint a) external pure returns (uint) {
        return btoi(a);
    }

    function calc_bfloor(uint a) external pure returns (uint) {
        return bfloor(a);
    }

    function calc_badd(uint a, uint b) external pure returns (uint) {
        return badd(a, b);
    }

    function calc_bsub(uint a, uint b) external pure returns (uint) {
        return bsub(a, b);
    }

    function calc_bsubSign(uint a, uint b) external pure returns (uint, bool) {
        return bsubSign(a, b);
    }

    function calc_bmul(uint a, uint b) external pure returns (uint) {
        return bmul(a, b);
    }

    function calc_bdiv(uint a, uint b) external pure returns (uint) {
        return bdiv(a, b);
    }

    function calc_bpowi(uint a, uint n) external pure returns (uint) {
        return bpowi(a, n);
    }

    function calc_bpow(uint base, uint exp) external pure returns (uint) {
        return bpow(base, exp);
    }

    function calc_bpowApprox(
        uint base,
        uint exp,
        uint precision
    ) external pure returns (uint) {
        return bpowApprox(base, exp, precision);
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity 0.6.12;

import "./Num.sol";

contract Math is BBronze, Const, Num {
    /**********************************************************************************************
    // calcSpotPrice                                                                             //
    // sP = spotPrice                                                                            //
    // bI = tokenBalanceIn                ( bI / wI )         1                                  //
    // bO = tokenBalanceOut         sP =  -----------  *  ----------                             //
    // wI = tokenWeightIn                 ( bO / wO )     ( 1 - sF )                             //
    // wO = tokenWeightOut                                                                       //
    // sF = swapFee                                                                              //
    **********************************************************************************************/
    function calcSpotPrice(
        uint tokenBalanceIn,
        uint tokenWeightIn,
        uint tokenBalanceOut,
        uint tokenWeightOut,
        uint swapFee
    ) external pure returns (uint spotPrice) {
        uint numer = bdiv(tokenBalanceIn, tokenWeightIn);
        uint denom = bdiv(tokenBalanceOut, tokenWeightOut);
        uint ratio = bdiv(numer, denom);
        uint scale = bdiv(BONE, bsub(BONE, swapFee));
        return (spotPrice = bmul(ratio, scale));
    }

    /**********************************************************************************************
    // calcOutGivenIn                                                                            //
    // aO = tokenAmountOut                                                                       //
    // bO = tokenBalanceOut                                                                      //
    // bI = tokenBalanceIn              /      /            bI             \    (wI / wO) \      //
    // aI = tokenAmountIn    aO = bO * |  1 - | --------------------------  | ^            |     //
    // wI = tokenWeightIn               \      \ ( bI + ( aI * ( 1 - sF )) /              /      //
    // wO = tokenWeightOut                                                                       //
    // sF = swapFee                                                                              //
    **********************************************************************************************/
    function calcOutGivenIn(
        uint tokenBalanceIn,
        uint tokenWeightIn,
        uint tokenBalanceOut,
        uint tokenWeightOut,
        uint tokenAmountIn,
        uint swapFee
    ) external pure returns (uint tokenAmountOut) {
        uint weightRatio = bdiv(tokenWeightIn, tokenWeightOut);
        uint adjustedIn = bsub(BONE, swapFee);
        adjustedIn = bmul(tokenAmountIn, adjustedIn);
        uint y = bdiv(tokenBalanceIn, badd(tokenBalanceIn, adjustedIn));
        uint foo = bpow(y, weightRatio);
        uint bar = bsub(BONE, foo);
        tokenAmountOut = bmul(tokenBalanceOut, bar);
        return tokenAmountOut;
    }

    /**********************************************************************************************
    // calcInGivenOut                                                                            //
    // aI = tokenAmountIn                                                                        //
    // bO = tokenBalanceOut               /  /     bO      \    (wO / wI)      \                 //
    // bI = tokenBalanceIn          bI * |  | ------------  | ^            - 1  |                //
    // aO = tokenAmountOut    aI =        \  \ ( bO - aO ) /                   /                 //
    // wI = tokenWeightIn           --------------------------------------------                 //
    // wO = tokenWeightOut                          ( 1 - sF )                                   //
    // sF = swapFee                                                                              //
    **********************************************************************************************/
    function calcInGivenOut(
        uint tokenBalanceIn,
        uint tokenWeightIn,
        uint tokenBalanceOut,
        uint tokenWeightOut,
        uint tokenAmountOut,
        uint swapFee
    ) external pure returns (uint tokenAmountIn) {
        uint weightRatio = bdiv(tokenWeightOut, tokenWeightIn);
        uint diff = bsub(tokenBalanceOut, tokenAmountOut);
        uint y = bdiv(tokenBalanceOut, diff);
        uint foo = bpow(y, weightRatio);
        foo = bsub(foo, BONE);
        tokenAmountIn = bsub(BONE, swapFee);
        tokenAmountIn = bdiv(bmul(tokenBalanceIn, foo), tokenAmountIn);
        return tokenAmountIn;
    }

    /**********************************************************************************************
    // calcPoolOutGivenSingleIn                                                                  //
    // pAo = poolAmountOut         /                                              \              //
    // tAi = tokenAmountIn        ///      /     //    wI \      \\       \     wI \             //
    // wI = tokenWeightIn        //| tAi *| 1 - || 1 - --  | * sF || + tBi \    --  \            //
    // tW = totalWeight     pAo=||  \      \     \\    tW /      //         | ^ tW   | * pS - pS //
    // tBi = tokenBalanceIn      \\  ------------------------------------- /        /            //
    // pS = poolSupply            \\                    tBi               /        /             //
    // sF = swapFee                \                                              /              //
    **********************************************************************************************/
    function calcPoolOutGivenSingleIn(
        uint tokenBalanceIn,
        uint tokenWeightIn,
        uint poolSupply,
        uint totalWeight,
        uint tokenAmountIn,
        uint swapFee
    ) external pure returns (uint poolAmountOut) {
        // Charge the trading fee for the proportion of tokenAi
        //  which is implicitly traded to the other pool tokens.
        // That proportion is (1- weightTokenIn)
        // tokenAiAfterFee = tAi * (1 - (1-weightTi) * poolFee);
        uint normalizedWeight = bdiv(tokenWeightIn, totalWeight);
        uint zaz = bmul(bsub(BONE, normalizedWeight), swapFee);
        uint tokenAmountInAfterFee = bmul(tokenAmountIn, bsub(BONE, zaz));

        uint newTokenBalanceIn = badd(tokenBalanceIn, tokenAmountInAfterFee);
        uint tokenInRatio = bdiv(newTokenBalanceIn, tokenBalanceIn);

        // uint newPoolSupply = (ratioTi ^ weightTi) * poolSupply;
        uint poolRatio = bpow(tokenInRatio, normalizedWeight);
        uint newPoolSupply = bmul(poolRatio, poolSupply);
        poolAmountOut = bsub(newPoolSupply, poolSupply);
        return poolAmountOut;
    }

    /**********************************************************************************************
    // calcSingleInGivenPoolOut                                                                  //
    // tAi = tokenAmountIn              //(pS + pAo)\     /    1    \\                           //
    // pS = poolSupply                 || ---------  | ^ | --------- || * bI - bI                //
    // pAo = poolAmountOut              \\    pS    /     \(wI / tW)//                           //
    // bI = balanceIn          tAi =  --------------------------------------------               //
    // wI = weightIn                              /      wI  \                                   //
    // tW = totalWeight                          |  1 - ----  |  * sF                            //
    // sF = swapFee                               \      tW  /                                   //
    **********************************************************************************************/
    function calcSingleInGivenPoolOut(
        uint tokenBalanceIn,
        uint tokenWeightIn,
        uint poolSupply,
        uint totalWeight,
        uint poolAmountOut,
        uint swapFee
    ) external pure returns (uint tokenAmountIn) {
        uint normalizedWeight = bdiv(tokenWeightIn, totalWeight);
        uint newPoolSupply = badd(poolSupply, poolAmountOut);
        uint poolRatio = bdiv(newPoolSupply, poolSupply);

        //uint newBalTi = poolRatio^(1/weightTi) * balTi;
        uint boo = bdiv(BONE, normalizedWeight);
        uint tokenInRatio = bpow(poolRatio, boo);
        uint newTokenBalanceIn = bmul(tokenInRatio, tokenBalanceIn);
        uint tokenAmountInAfterFee = bsub(newTokenBalanceIn, tokenBalanceIn);
        // Do reverse order of fees charged in joinswap_ExternAmountIn, this way
        //     ``` pAo == joinswap_ExternAmountIn(Ti, joinswap_PoolAmountOut(pAo, Ti)) ```
        //uint tAi = tAiAfterFee / (1 - (1-weightTi) * swapFee) ;
        uint zar = bmul(bsub(BONE, normalizedWeight), swapFee);
        tokenAmountIn = bdiv(tokenAmountInAfterFee, bsub(BONE, zar));
        return tokenAmountIn;
    }

    /**********************************************************************************************
    // calcSingleOutGivenPoolIn                                                                  //
    // tAo = tokenAmountOut            /      /                                             \\   //
    // bO = tokenBalanceOut           /      // pS - (pAi * (1 - eF)) \     /    1    \      \\  //
    // pAi = poolAmountIn            | bO - || ----------------------- | ^ | --------- | * b0 || //
    // ps = poolSupply                \      \\          pS           /     \(wO / tW)/      //  //
    // wI = tokenWeightIn      tAo =   \      \                                             //   //
    // tW = totalWeight                    /     /      wO \       \                             //
    // sF = swapFee                    *  | 1 - |  1 - ---- | * sF  |                            //
    // eF = exitFee                        \     \      tW /       /                             //
    **********************************************************************************************/
    function calcSingleOutGivenPoolIn(
        uint tokenBalanceOut,
        uint tokenWeightOut,
        uint poolSupply,
        uint totalWeight,
        uint poolAmountIn,
        uint swapFee
    ) external pure returns (uint tokenAmountOut) {
        uint normalizedWeight = bdiv(tokenWeightOut, totalWeight);
        // charge exit fee on the pool token side
        // pAiAfterExitFee = pAi*(1-exitFee)
        uint poolAmountInAfterExitFee = bmul(poolAmountIn, bsub(BONE, EXIT_FEE));
        uint newPoolSupply = bsub(poolSupply, poolAmountInAfterExitFee);
        uint poolRatio = bdiv(newPoolSupply, poolSupply);

        // newBalTo = poolRatio^(1/weightTo) * balTo;
        uint tokenOutRatio = bpow(poolRatio, bdiv(BONE, normalizedWeight));
        uint newTokenBalanceOut = bmul(tokenOutRatio, tokenBalanceOut);

        uint tokenAmountOutBeforeSwapFee = bsub(tokenBalanceOut, newTokenBalanceOut);

        // charge swap fee on the output token side
        //uint tAo = tAoBeforeSwapFee * (1 - (1-weightTo) * swapFee)
        uint zaz = bmul(bsub(BONE, normalizedWeight), swapFee);
        tokenAmountOut = bmul(tokenAmountOutBeforeSwapFee, bsub(BONE, zaz));
        return tokenAmountOut;
    }

    /**********************************************************************************************
    // calcPoolInGivenSingleOut                                                                  //
    // pAi = poolAmountIn               // /               tAo             \\     / wO \     \   //
    // bO = tokenBalanceOut            // | bO - -------------------------- |\   | ---- |     \  //
    // tAo = tokenAmountOut      pS - ||   \     1 - ((1 - (tO / tW)) * sF)/  | ^ \ tW /  * pS | //
    // ps = poolSupply                 \\ -----------------------------------/                /  //
    // wO = tokenWeightOut  pAi =       \\               bO                 /                /   //
    // tW = totalWeight           -------------------------------------------------------------  //
    // sF = swapFee                                        ( 1 - eF )                            //
    // eF = exitFee                                                                              //
    **********************************************************************************************/
    function calcPoolInGivenSingleOut(
        uint tokenBalanceOut,
        uint tokenWeightOut,
        uint poolSupply,
        uint totalWeight,
        uint tokenAmountOut,
        uint swapFee
    ) external pure returns (uint poolAmountIn) {
        // charge swap fee on the output token side
        uint normalizedWeight = bdiv(tokenWeightOut, totalWeight);
        //uint tAoBeforeSwapFee = tAo / (1 - (1-weightTo) * swapFee) ;
        uint zoo = bsub(BONE, normalizedWeight);
        uint zar = bmul(zoo, swapFee);
        uint tokenAmountOutBeforeSwapFee = bdiv(tokenAmountOut, bsub(BONE, zar));

        uint newTokenBalanceOut = bsub(tokenBalanceOut, tokenAmountOutBeforeSwapFee);
        uint tokenOutRatio = bdiv(newTokenBalanceOut, tokenBalanceOut);

        //uint newPoolSupply = (ratioTo ^ weightTo) * poolSupply;
        uint poolRatio = bpow(tokenOutRatio, normalizedWeight);
        uint newPoolSupply = bmul(poolRatio, poolSupply);
        uint poolAmountInAfterExitFee = bsub(poolSupply, newPoolSupply);

        // charge exit fee on the pool token side
        // pAi = pAiAfterExitFee/(1-exitFee)
        poolAmountIn = bdiv(poolAmountInAfterExitFee, bsub(BONE, EXIT_FEE));
        return poolAmountIn;
    }
}

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

import "./Const.sol";

// Core contract; can't be changed. So disable solhint (reminder for v2)

/* solhint-disable private-vars-leading-underscore */

contract Num is Const {
    function btoi(uint a) internal pure returns (uint) {
        return a / BONE;
    }

    function bfloor(uint a) internal pure returns (uint) {
        return btoi(a) * BONE;
    }

    function badd(uint a, uint b) internal pure returns (uint) {
        uint c = a + b;
        require(c >= a, "ERR_ADD_OVERFLOW");
        return c;
    }

    function bsub(uint a, uint b) internal pure returns (uint) {
        (uint c, bool flag) = bsubSign(a, b);
        require(!flag, "ERR_SUB_UNDERFLOW");
        return c;
    }

    function bsubSign(uint a, uint b) internal pure returns (uint, bool) {
        if (a >= b) {
            return (a - b, false);
        } else {
            return (b - a, true);
        }
    }

    function bmul(uint a, uint b) internal pure returns (uint) {
        uint c0 = a * b;
        require(a == 0 || c0 / a == b, "ERR_MUL_OVERFLOW");
        uint c1 = c0 + (BONE / 2);
        require(c1 >= c0, "ERR_MUL_OVERFLOW");
        uint c2 = c1 / BONE;
        return c2;
    }

    function bdiv(uint a, uint b) internal pure returns (uint) {
        require(b != 0, "ERR_DIV_ZERO");
        uint c0 = a * BONE;
        require(a == 0 || c0 / a == BONE, "ERR_DIV_INTERNAL"); // bmul overflow
        uint c1 = c0 + (b / 2);
        require(c1 >= c0, "ERR_DIV_INTERNAL"); //  badd require
        uint c2 = c1 / b;
        return c2;
    }

    // DSMath.wpow
    function bpowi(uint a, uint n) internal pure returns (uint) {
        uint z = n % 2 != 0 ? a : BONE;

        for (n /= 2; n != 0; n /= 2) {
            a = bmul(a, a);

            if (n % 2 != 0) {
                z = bmul(z, a);
            }
        }
        return z;
    }

    // Compute b^(e.w) by splitting it into (b^e)*(b^0.w).
    // Use `bpowi` for `b^e` and `bpowK` for k iterations
    // of approximation of b^0.w
    function bpow(uint base, uint exp) internal pure returns (uint) {
        require(base >= MIN_BPOW_BASE, "ERR_BPOW_BASE_TOO_LOW");
        require(base <= MAX_BPOW_BASE, "ERR_BPOW_BASE_TOO_HIGH");

        uint whole = bfloor(exp);
        uint remain = bsub(exp, whole);

        uint wholePow = bpowi(base, btoi(whole));

        if (remain == 0) {
            return wholePow;
        }

        uint partialResult = bpowApprox(base, remain, BPOW_PRECISION);
        return bmul(wholePow, partialResult);
    }

    function bpowApprox(
        uint base,
        uint exp,
        uint precision
    ) internal pure returns (uint) {
        // term 0:
        uint a = exp;
        (uint x, bool xneg) = bsubSign(base, BONE);
        uint term = BONE;
        uint sum = term;
        bool negative = false;

        // term(k) = numer / denom
        //         = (product(a - i - 1, i=1-->k) * x^k) / (k!)
        // each iteration, multiply previous term by (a-(k-1)) * x / k
        // continue until term is less than precision
        for (uint i = 1; term >= precision; i++) {
            uint bigK = i * BONE;
            (uint c, bool cneg) = bsubSign(a, bsub(bigK, BONE));
            term = bmul(term, bmul(c, x));
            term = bdiv(term, bigK);
            if (term == 0) break;

            if (xneg) negative = !negative;
            if (cneg) negative = !negative;
            if (negative) {
                sum = bsub(sum, term);
            } else {
                sum = badd(sum, term);
            }
        }

        return sum;
    }
}

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

import "./Color.sol";

contract Const is BBronze {
    uint public constant BONE = 10**18;

    uint public constant MIN_BOUND_TOKENS = 1;
    uint public constant MAX_BOUND_TOKENS = 16;

    uint public constant MIN_FEE = BONE / 10**6;
    uint public constant MAX_FEE = BONE / 10;
    uint public constant EXIT_FEE = 0;

    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 INIT_POOL_SUPPLY = BONE * 100;

    uint public constant MIN_BPOW_BASE = 1 wei;
    uint public constant MAX_BPOW_BASE = (2 * BONE) - 1 wei;
    uint public constant BPOW_PRECISION = BONE / 10**10;

    uint public constant MAX_IN_RATIO = BONE / 2;
    uint public constant MAX_OUT_RATIO = (BONE / 3) + 1 wei;
}

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

// abstract contract BColor {
//     function getColor()
//         external view virtual
//         returns (bytes32);
// }

contract BBronze {
    function getColor() external pure returns (bytes32) {
        return bytes32("BRONZE");
    }
}

pragma solidity 0.6.12;

import "../base/Num.sol";
import "../interfaces/IERC20.sol";
import "../interfaces/AggregatorV2V3Interface.sol";
import "../interfaces/IUniswapOracle.sol";

library SafeMath {
    function add(uint a, uint b) internal pure returns (uint) {
        uint c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    function sub(uint a, uint b) internal pure returns (uint) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(
        uint a,
        uint b,
        string memory errorMessage
    ) internal pure returns (uint) {
        require(b <= a, errorMessage);
        uint c = a - b;

        return c;
    }

    function mul(uint a, uint b) internal pure returns (uint) {
        if (a == 0) {
            return 0;
        }

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

        return c;
    }

    function div(uint a, uint b) internal pure returns (uint) {
        return div(a, b, "SafeMath: division by zero");
    }

    function div(
        uint a,
        uint b,
        string memory errorMessage
    ) internal pure returns (uint) {
        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;
    }

    function mod(uint a, uint b) internal pure returns (uint) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(
        uint a,
        uint b,
        string memory errorMessage
    ) internal pure returns (uint) {
        require(b != 0, errorMessage);
        return a % b;
    }

    function abs(uint a, uint b) internal pure returns(uint result, bool isFirstBigger) {
        if(a > b){
            result = a - b;
            isFirstBigger = true;
        } else {
            result = b - a;
            isFirstBigger = false;
        }
    }
}

contract DesynChainlinkOracle is Num {
    address public admin;
    using SafeMath for uint;
    IUniswapOracle public twapOracle;
    mapping(address => uint) internal prices;
    mapping(bytes32 => AggregatorV2V3Interface) internal feeds;
    event PricePosted(address asset, uint previousPriceMantissa, uint requestedPriceMantissa, uint newPriceMantissa);
    event NewAdmin(address oldAdmin, address newAdmin);
    event FeedSet(address feed, string symbol);

    constructor(address twapOracle_) public {
        admin = msg.sender;
        twapOracle = IUniswapOracle(twapOracle_);
    }

    function getPrice(address tokenAddress) public returns (uint price) {
        IERC20 token = IERC20(tokenAddress);
        AggregatorV2V3Interface feed = getFeed(token.symbol());
        if (prices[address(token)] != 0) {
            price = prices[address(token)];
        } else if (address(feed) != address(0)) {
            price = getChainlinkPrice(feed);
        } else {
            try twapOracle.update(address(token)) {} catch {}
            price = getUniswapPrice(tokenAddress);
        }

        (uint decimalDelta, bool isUnderFlow18) = uint(18).abs(uint(token.decimals()));

        if(isUnderFlow18){
            return price.mul(10**decimalDelta);
        }

        if(!isUnderFlow18){
            return price.div(10**decimalDelta);
        }
    }

    function getAllPrice(address[] calldata poolTokens, uint[] calldata actualAmountsOut) external returns (uint fundAll) {
        require(poolTokens.length == actualAmountsOut.length, "Invalid Length");
        
        for (uint i = 0; i < poolTokens.length; i++) {
            address t = poolTokens[i];
            uint tokenAmountOut = actualAmountsOut[i];
            fundAll = badd(fundAll, bmul(getPrice(t), tokenAmountOut));
        }
    }

    function getChainlinkPrice(AggregatorV2V3Interface feed) internal view returns (uint) {
        // Chainlink USD-denominated feeds store answers at 8 decimals
        uint decimalDelta = bsub(uint(18), feed.decimals());
        // Ensure that we don't multiply the result by 0
        if (decimalDelta > 0) {
            return uint(feed.latestAnswer()).mul(10**decimalDelta);
        } else {
            return uint(feed.latestAnswer());
        }
    }

    function getUniswapPrice(address tokenAddress) internal view returns (uint) {
        IERC20 token = IERC20(tokenAddress);
        uint price = twapOracle.consult(tokenAddress, uint(10) ** token.decimals());
        return price;
    }

    function setDirectPrice(address asset, uint price) external onlyAdmin {
        emit PricePosted(asset, prices[asset], price, price);
        prices[asset] = price;
    }

    function setFeed(string calldata symbol, address feed) external onlyAdmin {
        require(feed != address(0) && feed != address(this), "invalid feed address");
        emit FeedSet(feed, symbol);
        feeds[keccak256(abi.encodePacked(symbol))] = AggregatorV2V3Interface(feed);
    }

    function getFeed(string memory symbol) public view returns (AggregatorV2V3Interface) {
        return feeds[keccak256(abi.encodePacked(symbol))];
    }

    function assetPrices(address asset) external view returns (uint) {
        return prices[asset];
    }

    function compareStrings(string memory a, string memory b) internal pure returns (bool) {
        return (keccak256(abi.encodePacked((a))) == keccak256(abi.encodePacked((b))));
    }

    function setAdmin(address newAdmin) external onlyAdmin {
        require(newAdmin != address(0),"ERR_ZERO_ADDRESS");
        address oldAdmin = admin;
        admin = newAdmin;

        emit NewAdmin(oldAdmin, newAdmin);
    }

    modifier onlyAdmin() {
        require(msg.sender == admin, "only admin may call");
        _;
    }
}

// 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);
}

pragma solidity 0.6.12;

/**
 * @title The V2 & V3 Aggregator Interface
 * @notice Solidity V0.5 does not allow interfaces to inherit from other
 * interfaces so this contract is a combination of v0.5 AggregatorInterface.sol
 * and v0.5 AggregatorV3Interface.sol.
 */
interface AggregatorV2V3Interface {
    //
    // V2 Interface:
    //
    function latestAnswer() external view returns (int);

    function latestTimestamp() external view returns (uint);

    function latestRound() external view returns (uint);

    function getAnswer(uint roundId) external view returns (int);

    function getTimestamp(uint roundId) external view returns (uint);

    event AnswerUpdated(int indexed current, uint indexed roundId, uint timestamp);
    event NewRound(uint indexed roundId, address indexed startedBy, uint startedAt);

    //
    // V3 Interface:
    //
    function decimals() external view returns (uint8);

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

    function version() external view returns (uint);

    // getRoundData and latestRoundData should both raise "No data present"
    // if they do not have data to report, instead of returning unset values
    // which could be misinterpreted as actual reported values.
    function getRoundData(uint80 _roundId)
        external
        view
        returns (
            uint80 roundId,
            int answer,
            uint startedAt,
            uint updatedAt,
            uint80 answeredInRound
        );

    function latestRoundData()
        external
        view
        returns (
            uint80 roundId,
            int answer,
            uint startedAt,
            uint updatedAt,
            uint80 answeredInRound
        );
}

pragma solidity 0.6.12;

interface IUniswapOracle {
    function update(address token) external;

    function consult(address token, uint amountIn) external view returns (uint amountOut);
}

// 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);
    }
}

// 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);
}

// 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);
}

// 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;
        }
    }
}

// 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;
    }
}

// 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");
        }
    }
}

// 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;
}

// 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);
            }
        }
    }
}

pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import "../interfaces/IERC20.sol";
import "../openzeppelin/Ownable.sol";
import "../interfaces/IDSProxy.sol";
import "../libraries/SafeMath.sol";
import "../libraries/Address.sol";
import "../libraries/SafeERC20.sol";
import "../base/Logs.sol";

interface ICRPPool {
    function getController() external view returns (address);

    enum Etypes {
        OPENED,
        CLOSED
    }

    function etype() external view returns (Etypes);
}

interface IDesynOwnable {
    function adminList(address adr) external view returns (bool);
    function getController() external view returns (address);
    function getOwners() external view returns (address[] memory);
    function getOwnerPercentage() external view returns (uint[] memory);
    function allOwnerPercentage() external view returns (uint);
}

interface IUserVault {
    function depositToken(
        address pool,
        uint types,
        address[] calldata poolTokens,
        uint[] calldata tokensAmount
    ) external;
}

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

/**
 * @author Desyn Labs
 * @title Vault managerFee
 */
contract Vault is Ownable, Logs {
    using SafeMath for uint;
    using Address for address;
    using SafeERC20 for IERC20;

    ICRPFactory crpFactory;
    address public userVault;

    event ManagersClaim(address indexed caller,address indexed pool, address token, uint amount, uint time);
    event ManagerClaim(address indexed caller, address indexed pool, address indexed manager, address token, uint amount, uint time);

    // pool of tokens
    struct PoolTokens {
        address[] tokenList;
        uint[] managerAmount;
        uint[] issueAmount;
        uint[] redeemAmount;
        uint[] perfermanceAmount;
    }

    struct PoolStatus {
        bool couldManagerClaim;
        bool isBlackList;
    }
    
    struct ClaimTokens {
        address[] tokens;
        uint[] amounts;
    }

    // pool tokens
    mapping(address => PoolTokens) poolsTokens;
    mapping(address => PoolStatus) public poolsStatus;

    mapping (address => ClaimTokens) manageHasClaimed;

    // default ratio config
    uint public TOTAL_RATIO = 1000;
    uint public management_portion = 800;
    uint public issuance_portion = 800;
    uint public redemption_portion = 800;
    uint public performance_portion = 800;

    receive() external payable {}

    function depositManagerToken(address[] calldata tokensIn, uint[] calldata amountsIn) external {
        address pool = msg.sender;
        require(crpFactory.isCrp(pool), "ERR_INVALID_POOL_ADDRESS");
        require(tokensIn.length == amountsIn.length, "ERR_TOKEN_LENGTH_NOT_MATCH");
        _depositTokenIM(0, pool, tokensIn, amountsIn);

        poolsStatus[pool].couldManagerClaim = true;
        
        if (_isClosePool(pool)) managerClaim(pool);
    }

    function depositIssueRedeemPToken(
        address[] calldata tokensIn,
        uint[] calldata amountsIn,
        uint[] calldata tokensAmountIR,
        bool isPerfermance
    ) external {
        address pool = msg.sender;
        require(crpFactory.isCrp(pool), "ERR_INVALID_POOL_ADDRESS");
        require(tokensIn.length == amountsIn.length, "ERR_TOKEN_LENGTH_NOT_MATCH");

        isPerfermance
                // I-issuce； M-mamager； R-redeem；p-performance
                ? _depositTokenRP(pool, tokensIn, amountsIn, tokensAmountIR)
                : _depositTokenIM(1, pool, tokensIn, amountsIn);

        poolsStatus[pool].couldManagerClaim = true;

        if (_isClosePool(pool)) managerClaim(pool);   
    }

    function getManagerClaimBool(address pool) external view returns (bool) {
        return poolsStatus[pool].couldManagerClaim;
    }

    function setBlackList(address pool, bool bools) external onlyOwner _logs_ {
        poolsStatus[pool].isBlackList = bools;
    }

    function setUserVaultAdr(address adr) external onlyOwner _logs_ {
        require(adr != address(0), "ERR_INVALID_USERVAULT_ADDRESS");
        userVault = adr;
    }

    function setCrpFactory(address adr) external onlyOwner _logs_ {
        crpFactory = ICRPFactory(adr);
    }

    function claimToken(
        address token,
        address user,
        uint amount
    ) external onlyOwner {
        IERC20(token).safeTransfer(user, amount);
    }

    function claimEther() external payable onlyOwner {
        msg.sender.transfer(address(this).balance);
    }

    function setManagerRatio(uint amount) external onlyOwner _logs_ {
        require(amount <= TOTAL_RATIO, "Maximum limit exceeded");
        management_portion = amount;
    }

    function setIssueRatio(uint amount) external onlyOwner _logs_ {
        require(amount <= TOTAL_RATIO, "Maximum limit exceeded");
        issuance_portion = amount;
    }

    function setRedeemRatio(uint amount) external onlyOwner _logs_ {
        require(amount <= TOTAL_RATIO, "Maximum limit exceeded");
        redemption_portion = amount;
    }

    function setPerfermanceRatio(uint amount) external onlyOwner _logs_{
        performance_portion = amount;
    }

    function managerClaim(address pool) public {
        PoolStatus storage status = poolsStatus[pool];

        if(status.couldManagerClaim){
            require(crpFactory.isCrp(pool), "ERR_INVALID_POOL_ADDRESS");
            address managerAddr = ICRPPool(pool).getController();
            bool isCloseETF = _isClosePool(pool);

            PoolTokens memory tokens = poolsTokens[pool];
            address[] memory poolManageTokens = tokens.tokenList;
            uint len = poolManageTokens.length;
            require(!status.isBlackList, "ERR_POOL_IS_BLACKLIST");
            require(len > 0, "ERR_NOT_MANGER_FEE");
            require(status.couldManagerClaim, "ERR_MANAGER_COULD_NOT_CLAIM");
            status.couldManagerClaim = false;

            uint[] memory managerTokenAmount = new uint[](len);
            uint[] memory issueTokenAmount = new uint[](len);
            uint[] memory redeemTokenAmount = new uint[](len);
            uint[] memory perfermanceTokenAmount = new uint[](len);

            for (uint i; i < len; i++) {
                address t = poolManageTokens[i];
                uint b;
                (b, managerTokenAmount[i], issueTokenAmount[i], redeemTokenAmount[i], perfermanceTokenAmount[i]) = _computeBalance(i, pool);
                if(!isCloseETF) b = b.sub(_getManagerHasClaimed(pool,t));
                if(b != 0) _transferHandle(pool, managerAddr, t, b);
            }
            
            if (isCloseETF) {
                _recordUserVault(pool, poolManageTokens, managerTokenAmount, issueTokenAmount, redeemTokenAmount, perfermanceTokenAmount);
                _clearPool(pool);
            } 
        }  
    }

    function getManagerFeeTypes(address pool) external view returns(PoolTokens memory result){     
        PoolTokens memory tokens = poolsTokens[pool];
        address[] memory poolManageTokens = tokens.tokenList;
        uint len = poolManageTokens.length;

        result.tokenList = tokens.tokenList;
        result.managerAmount = new uint[](len);
        result.issueAmount = new uint[](len);
        result.redeemAmount = new uint[](len);
        result.perfermanceAmount = new uint[](len);

        for(uint i; i< len; i++){
            (,result.managerAmount[i],result.issueAmount[i],result.redeemAmount[i],result.perfermanceAmount[i]) = _computeBalance(i,pool);
        }
    }

    function getUnManagerReward(address pool) external view returns (address[] memory tokensList, uint[] memory amounts) {
        PoolTokens memory tokens = poolsTokens[pool];
        address[] memory poolManageTokens = tokens.tokenList;
        uint len = poolManageTokens.length;

        tokensList = new address[](len);
        amounts = new uint[](len);

        for (uint i; i < len; i++) {
            address t = poolManageTokens[i];
            tokensList[i] = t;
            (amounts[i],,,,) = _computeBalance(i,pool);
            amounts[i] = amounts[i].sub(_getManagerHasClaimed(pool, t));
        }
    }

    function _addTokenInPool(address pool, address tokenAddr) internal {
        PoolTokens storage tokens = poolsTokens[pool];

        tokens.tokenList.push(tokenAddr);
        tokens.managerAmount.push(0);
        tokens.issueAmount.push(0);
        tokens.redeemAmount.push(0);
        tokens.perfermanceAmount.push(0);
    }
    // for old token
    function _updateTokenAmountInPool(uint types, address pool, uint tokenIndex, uint amount) internal {
        PoolTokens storage tokens = poolsTokens[pool];

        if(types == 0) tokens.managerAmount[tokenIndex] = tokens.managerAmount[tokenIndex].add(amount);
        else if(types == 1) tokens.issueAmount[tokenIndex] = tokens.issueAmount[tokenIndex].add(amount);
        else if(types == 2) tokens.redeemAmount[tokenIndex] = tokens.redeemAmount[tokenIndex].add(amount);
        else if(types == 3) tokens.perfermanceAmount[tokenIndex] = tokens.perfermanceAmount[tokenIndex].add(amount);
    }
    // for new token
    function _updateTokenAmountInPool(uint types, address pool, uint amount) internal {
        PoolTokens storage tokens = poolsTokens[pool];
        uint tokenIndex = tokens.tokenList.length - 1;

        if(types == 0) tokens.managerAmount[tokenIndex] = amount;
        else if(types == 1) tokens.issueAmount[tokenIndex] = amount;
        else if(types == 2) tokens.redeemAmount[tokenIndex] = amount;
        else if(types == 3) tokens.perfermanceAmount[tokenIndex] = amount;
    }

    function _depositTokenIM(
        uint types,
        address pool,
        address[] memory tokensIn,
        uint[] memory amountsIn
    ) internal {
        PoolTokens memory tokens = poolsTokens[pool];

        uint len = tokensIn.length;
        for (uint i; i < len; i++) {
            address t = tokensIn[i];
            uint b = amountsIn[i];

            IERC20(t).safeTransferFrom(msg.sender, address(this), b);
            (bool isExit, uint index) = _arrIncludeAddr(tokens.tokenList,t);
            if (isExit) {
                _updateTokenAmountInPool(types,pool,index,b);
            } else { 
                _addTokenInPool(pool,t); 
                _updateTokenAmountInPool(types,pool,b);    
            }
        }
    }

    function _arrIncludeAddr(address[] memory tokens, address target) internal pure returns(bool isInclude, uint index){
        for(uint i; i<tokens.length; i++){
            if(tokens[i] == target){ 
                isInclude = true;
                index = i;
                break;
            }
        }
    }

    function _depositTokenRP(
        address pool,
        address[] calldata tokenIns,
        uint[] calldata tokensAmount,
        uint[] calldata tokensAmountIR
    ) internal {
        address[] memory tokenList = poolsTokens[pool].tokenList;

        uint len = tokensAmount.length;
        for (uint i; i < len; i++) {
            address t = tokenIns[i];
            uint b = tokensAmount[i];
            // uint bIR = tokensAmountIR[i];
            IERC20(t).safeTransferFrom(msg.sender, address(this), b);

            (bool isExit,uint index) = _arrIncludeAddr(tokenList, t);
            if(isExit){
                _updateTokenAmountInPool(2, pool, index, tokensAmountIR[i]);
                _updateTokenAmountInPool(3, pool, index, b.sub(tokensAmountIR[i]));
            } else {
                _addTokenInPool(pool, t);
                _updateTokenAmountInPool(2,pool, tokensAmountIR[i]);
                _updateTokenAmountInPool(3, pool,b.sub(tokensAmountIR[i]));        
            }
        }
    }

    function _isClosePool(address pool) internal view returns (bool) {
        return ICRPPool(pool).etype() == ICRPPool.Etypes.CLOSED;
    }

    function _computeBalance(uint i, address pool)
        internal
        view
        returns (
            uint balance,
            uint bManagerAmount,
            uint bIssueAmount,
            uint bRedeemAmount,
            uint bPerfermanceAmount
        )
    {
        PoolTokens memory tokens = poolsTokens[pool];

        if (tokens.tokenList.length != 0) {
            bManagerAmount = tokens.managerAmount[i].mul(management_portion).div(TOTAL_RATIO);
            bIssueAmount = tokens.issueAmount[i].mul(issuance_portion).div(TOTAL_RATIO);
            bRedeemAmount = tokens.redeemAmount[i].mul(redemption_portion).div(TOTAL_RATIO);
            bPerfermanceAmount = tokens.perfermanceAmount[i].mul(performance_portion).div(TOTAL_RATIO);

            balance = bManagerAmount.add(bIssueAmount).add(bRedeemAmount).add(bPerfermanceAmount);
        }
    }

    function _clearPool(address pool) internal {
        delete poolsTokens[pool];
    }

    function _recordUserVault(
        address pool,
        address[] memory tokenList,
        uint[] memory managerTokenAmount,
        uint[] memory issueTokenAmount,
        uint[] memory redeemTokenAmount,
        uint[] memory perfermanceTokenAmount
    ) internal {
        if (tokenList.length != 0) {
            IUserVault(userVault).depositToken(pool, 0, tokenList, managerTokenAmount);
            IUserVault(userVault).depositToken(pool, 1, tokenList, issueTokenAmount);
            IUserVault(userVault).depositToken(pool, 2, tokenList, redeemTokenAmount);
            IUserVault(userVault).depositToken(pool, 3, tokenList, perfermanceTokenAmount);
        }

    }

    function _transferHandle(
        address pool,
        address managerAddr,
        address t,
        uint balance
    ) internal {
        require(balance != 0, "ERR_ILLEGAL_BALANCE");
        bool isCloseETF = _isClosePool(pool);
        bool isOpenETF = !isCloseETF;

        if(isCloseETF){
            IERC20(t).safeTransfer(userVault, balance);
        }

        // if(isOpenETF && isContractManager){
        if(isOpenETF) {
            address[] memory managerAddressList = IDesynOwnable(pool).getOwners();
            uint[] memory ownerPercentage = IDesynOwnable(pool).getOwnerPercentage();
            uint allOwnerPercentage = IDesynOwnable(pool).allOwnerPercentage();

            for (uint k; k < managerAddressList.length; k++) {
                address reciver = address(managerAddressList[k]).isContract()? IDSProxy(managerAddressList[k]).owner(): managerAddressList[k];
                uint b = balance.mul(ownerPercentage[k]).div(allOwnerPercentage);
                IERC20(t).safeTransfer(reciver, b);
                emit ManagerClaim(msg.sender, pool, reciver,t,b,block.timestamp);
            }
            _updateManageHasClaimed(pool,t,balance);
            emit ManagersClaim(msg.sender, pool, t, balance, block.timestamp);
        }
    }

    function _updateManageHasClaimed(address pool, address token, uint amount) internal {
        ClaimTokens storage claimInfo = manageHasClaimed[pool];
        (bool isExit, uint index) = _arrIncludeAddr(claimInfo.tokens, token);

        if(isExit){
            claimInfo.amounts[index] = claimInfo.amounts[index].add(amount);
        } else{
            claimInfo.tokens.push(token);
            claimInfo.amounts.push(amount);
        }
    }

    function _getManagerHasClaimed(address pool, address token) internal view returns(uint){
        require(!_isClosePool(pool),"ERR_NOT_OPEN_POOL");

        ClaimTokens memory claimInfo = manageHasClaimed[pool];
        (bool isExit,uint index) = _arrIncludeAddr(claimInfo.tokens, token);

        if(isExit) return claimInfo.amounts[index];
        if(!isExit) return 0;
    }
}

pragma solidity >=0.6.0 <0.8.0;

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;
    }
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

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

interface IDSProxy {
    function owner() external view returns(address);
}

// 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);
        _;
    }
}

pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import "../interfaces/IERC20.sol";
import "../interfaces/IDSProxy.sol";
import "../openzeppelin/Ownable.sol";
import  "../libraries/SmartPoolManager.sol";
import "../libraries/EnumerableSet.sol";
import "../libraries/SafeMath.sol";
import "../libraries/Address.sol";
import "../libraries/SafeERC20.sol";
import "../base/Logs.sol";

interface ICRPPool {
    function getController() external view returns (address);

    enum Etypes {
        OPENED,
        CLOSED
    }

    function etype() external view returns (Etypes);

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

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

interface IDesynOwnable {
    function adminList(address adr) external view returns (bool);
    function getController() external view returns (address);
    function getOwners() external view returns (address[] memory);
    function getOwnerPercentage() external view returns (uint[] memory);
    function allOwnerPercentage() external view returns (uint);
}

/**
 * @author Desyn Labs
 * @title Vault managerFee
 */
contract UserVault is Ownable, Logs {
    using SafeMath for uint;
    using Address for address;
    using EnumerableSet for EnumerableSet.AddressSet;
    using SafeERC20 for IERC20;

    event ManagersClaim(address indexed caller,address indexed pool, address token, uint amount, uint time);
    event ManagerClaim(address indexed caller,address indexed pool, address indexed manager, address token, uint amount, uint time);
    event KolClaim(address indexed caller,address indexed kol, address token, uint amount, uint time);

    event TypeAmountIn(address indexed pool, uint types, address caller, address token, uint balance);

    ICRPFactory crpFactory;
    address vaultAddress;

    // pool of tokens
    struct PoolTokens {
        address[] tokenList;
        uint[] managerAmount;
        uint[] issueAmount;
        uint[] redeemAmount;
        uint[] perfermanceAmount;
    }

    struct PoolStatus {
        bool couldManagerClaim;
        bool isBlackList;
        bool isSetParams;
        SmartPoolManager.KolPoolParams kolPoolConfig;
    }

    // kol list
    struct KolUserInfo {
        address userAdr;
        uint[] userAmount;
    }

    struct UserKolInfo {
        address kol;
        uint index;
    }

    struct ClaimTokens {
        address[] tokens;
        uint[] amounts;
    }

    // pool => kol => KolUserInfo[]
    mapping(address => mapping(address => KolUserInfo[])) kolUserInfo;

    // pool tokens
    mapping(address => PoolTokens) poolsTokens;
    mapping(address => PoolStatus) poolsStatus;

    //pool => initTotalAmount[]
    mapping(address => uint) public poolInviteTotal;

    //pool => kol[]
    mapping(address => EnumerableSet.AddressSet) kolsList;

    //pool => kol => totalAmount[]
    mapping(address => mapping(address => uint[])) public kolTotalAmountList;

    // pool => user => kol
    mapping(address => mapping(address => UserKolInfo)) public userKolList;
    
    // pool=>kol=>tokens
    mapping(address => mapping(address => ClaimTokens)) kolHasClaimed;

    // pool=>manage=>tokens
    mapping (address => ClaimTokens) manageHasClaimed;

    receive() external payable {}

    uint constant RATIO_BASE = 100;

    function getManagerClaimBool(address pool) external view returns(bool){
        return poolsStatus[pool].couldManagerClaim;
    }

    // one type call and receiver token
    function depositToken(
        address pool,
        uint types,
        address[] calldata tokensIn,
        uint[] calldata amountsIn
    ) external onlyVault {
        require(tokensIn.length == amountsIn.length, "ERR_TOKEN_LENGTH_NOT_MATCH");
        _updatePool(pool, types, tokensIn, amountsIn);
        poolsStatus[pool].couldManagerClaim = true;
    }

    // total tokens in pool
    function getPoolReward(address pool) external view returns (address[] memory tokenList, uint[] memory balances) {
        PoolTokens memory tokens = poolsTokens[pool];
        uint len = tokens.tokenList.length;

        balances = new uint[](len);    
        tokenList = tokens.tokenList;

        for(uint i; i<len ;i++){
            balances[i] = tokens.managerAmount[i]
                            .add(tokens.issueAmount[i])
                            .add(tokens.redeemAmount[i])
                            .add(tokens.perfermanceAmount[i]);
        }
    }

    struct RewardVars {
        address pool;
        uint t0Ratio;
        uint t1Ratio;
        uint t2Ratio;
        uint t3Ratio;
        uint[] managementAmounts;
        uint[] issueAmounts;
        uint[] redemptionAmounts;
        uint[] performanceAmounts;
    }

    // one kol total reward 
    function getKolReward(
        address pool,
        address kol
    ) external view returns (address[] memory tokenList, uint[] memory balances) {
        uint contributionByCurKol = kolTotalAmountList[pool][kol].length > 0 ? kolTotalAmountList[pool][kol][0] : 0;
        uint allContributionByKol = poolInviteTotal[pool];

        SmartPoolManager.KolPoolParams memory params = poolsStatus[pool].kolPoolConfig;

        PoolTokens memory tokens = poolsTokens[pool];
        balances = new uint[](tokens.tokenList.length);
        tokenList = tokens.tokenList;

        RewardVars memory vars = RewardVars(
            pool,
            _levelJudge(contributionByCurKol, params.managerFee),
            _levelJudge(contributionByCurKol, params.issueFee),
            _levelJudge(contributionByCurKol, params.redeemFee),
            _levelJudge(contributionByCurKol, params.perfermanceFee),
            tokens.managerAmount,
            tokens.issueAmount,
            tokens.redeemAmount,
            tokens.perfermanceAmount
        );

        for(uint i; i < tokenList.length; i++){
             balances[i] = vars.managementAmounts[i].mul(vars.t0Ratio).div(RATIO_BASE)
                                .add(vars.issueAmounts[i].mul(vars.t1Ratio).div(RATIO_BASE))
                                .add(vars.redemptionAmounts[i].mul(vars.t2Ratio).div(RATIO_BASE))
                                .add(vars.performanceAmounts[i].mul(vars.t3Ratio).div(RATIO_BASE))
                                .mul(contributionByCurKol)
                                .div(allContributionByKol);
        }
    }

    function kolClaim(address pool) external {
        if (_isClosePool(pool)) {
            require(crpFactory.isCrp(pool), "ERR_INVALID_POOL_ADDRESS");
            require(ICRPPool(pool).isCompletedCollect(), "ERR_NOT_COMPLETED_COLLECT");
            (address[] memory tokens, uint[] memory amounts) = this.getKolReward(pool, msg.sender);

            ClaimTokens storage kolClaimedInfo = kolHasClaimed[pool][msg.sender];

            // update length
            kolClaimedInfo.tokens = tokens;
            uint amountsLen = kolClaimedInfo.amounts.length;
            uint tokensLen = tokens.length;

            if(amountsLen != tokensLen){
                uint delta = tokensLen - amountsLen;
                for(uint i; i < delta; i++){
                    kolClaimedInfo.amounts.push(0);
                }
            }
            
            address receiver = address(msg.sender).isContract()? IDSProxy(msg.sender).owner(): msg.sender;
            for(uint i; i< tokens.length; i++) {
                uint b = amounts[i] - kolClaimedInfo.amounts[i];
                if(b != 0){
                    IERC20(tokens[i]).safeTransfer(receiver, b);
                    kolClaimedInfo.amounts[i] = kolClaimedInfo.amounts[i].add(b);
                    emit KolClaim(msg.sender,receiver,tokens[i],b,block.timestamp);
                }
            }
        }
    }

    // manager claim
    function managerClaim(address pool) external {
        // try  {} catch {}
        if (_isClosePool(pool) && poolsStatus[pool].couldManagerClaim) {
            bool isManager = IDesynOwnable(pool).adminList(msg.sender) || IDesynOwnable(pool).getController() == msg.sender;
            bool isCollectSuccee = ICRPPool(pool).isCompletedCollect();
            require(isCollectSuccee, "ERR_NOT_COMPLETED_COLLECT");
            require(isManager, "ERR_NOT_MANAGER");
            (address[] memory tokens, uint[] memory amounts) = this.getUnManagerReward(pool);
            poolsStatus[pool].couldManagerClaim = false;

            ClaimTokens storage manageHasClimed = manageHasClaimed[pool];

            // update length
            manageHasClimed.tokens = tokens;
            uint amountsLen = manageHasClimed.amounts.length;
            uint tokensLen = tokens.length;

            if(amountsLen != tokensLen){
                uint delta = tokensLen - amountsLen;
                for(uint i; i < delta; i++){
                    manageHasClimed.amounts.push(0);
                }
            }
            // update tokens
            for(uint i; i< tokens.length; i++){
                address t = tokens[i];
                if(amounts[i]!=0){
                    _transferHandle(pool, t, amounts[i]);
                    manageHasClimed.amounts[i] = manageHasClimed.amounts[i].add(amounts[i]);
                }
            }
        }
    }

    function getManagerReward(address pool) external view returns (address[] memory, uint[] memory) {
        (address[] memory totalTokens, uint[] memory totalFee) = this.getPoolReward(pool);
        (, uint[] memory kolFee) = this.getKolsReward(pool);

        uint len = totalTokens.length;
        uint[] memory balances = new uint[](len);

        for(uint i; i<len; i++){
            balances[i] = totalFee[i] - kolFee[i];
        }

        return (totalTokens, balances);
    }
    // for all manager
    function getUnManagerReward(address pool) external returns (address[] memory, uint[] memory) {
        (address[] memory totalTokens, uint[] memory totalAmounts) = this.getManagerReward(pool);
        ClaimTokens storage manageHasClimed = manageHasClaimed[pool];

        // update length
        manageHasClimed.tokens = totalTokens;
        uint amountsLen = manageHasClimed.amounts.length;
        uint tokensLen = totalTokens.length;
        if(amountsLen != tokensLen){
            uint delta = tokensLen - amountsLen;
            for(uint i; i < delta; i++){
                manageHasClimed.amounts.push(0);
            }
        }

        uint len = totalTokens.length;
        uint[] memory balances = new uint[](len);
        for(uint i; i < totalTokens.length; i++){
            balances[i] = totalAmounts[i] - manageHasClimed.amounts[i];
        }        

        return (totalTokens,balances);
    }

    function getPoolFeeTypes(address pool) external view returns(PoolTokens memory result){      
        return poolsTokens[pool];
    }
    
    function getManagerFeeTypes(address pool) external view returns(PoolTokens memory result){     
        result = this.getPoolFeeTypes(pool);
        PoolTokens memory allKolFee = _getKolsFeeTypes(pool); 

        uint len = result.tokenList.length;
        for(uint i; i< len; i++){
            result.managerAmount[i] = result.managerAmount[i].sub(allKolFee.managerAmount[i]);
            result.issueAmount[i] = result.issueAmount[i].sub(allKolFee.issueAmount[i]);
            result.redeemAmount[i] = result.redeemAmount[i].sub(allKolFee.redeemAmount[i]);
            result.perfermanceAmount[i] = result.perfermanceAmount[i].sub(allKolFee.perfermanceAmount[i]);
        }
    }
  
    function _getKolsFeeTypes(address pool) internal view returns(PoolTokens memory result) {
        PoolTokens memory poolInfo = poolsTokens[pool];
        uint len = poolInfo.tokenList.length;
        result.tokenList = poolInfo.tokenList;
        
        EnumerableSet.AddressSet storage list = kolsList[pool];
        uint kolLen = list.length();
        // init result
        result.managerAmount = new uint[](len);
        result.issueAmount = new uint[](len);
        result.redeemAmount = new uint[](len);
        result.perfermanceAmount = new uint[](len);

        for(uint types; types<4; types++){
            for(uint i; i<len; i++){ 
                for (uint j; j < kolLen; j++) {
                    if(types == 0) result.managerAmount[i] = result.managerAmount[i].add(_computeKolTotalReward(pool, list.at(j), 0, i));
                    else if(types == 1) result.issueAmount[i] = result.issueAmount[i].add(_computeKolTotalReward(pool, list.at(j), 1, i));
                    else if(types == 2) result.redeemAmount[i] = result.redeemAmount[i].add(_computeKolTotalReward(pool, list.at(j), 2, i));
                    else if(types == 3) result.perfermanceAmount[i] = result.perfermanceAmount[i].add(_computeKolTotalReward(pool, list.at(j), 3, i));
                }    
            }      
        }
    }

    function getKolFeeType(address pool, address kol) external view returns(PoolTokens memory result) {
        PoolTokens memory poolInfo = poolsTokens[pool];
        result.tokenList = poolInfo.tokenList;
        
        uint len = poolInfo.tokenList.length;
        // init result
        result.managerAmount = new uint[](len);
        result.issueAmount = new uint[](len);
        result.redeemAmount = new uint[](len);
        result.perfermanceAmount = new uint[](len);
        // more for to save gas
        for(uint i; i<len; i++){ 
            result.managerAmount[i] = result.managerAmount[i].add(_computeKolTotalReward(pool, kol, 0, i));
            result.issueAmount[i] = result.issueAmount[i].add(_computeKolTotalReward(pool, kol, 1, i));
            result.redeemAmount[i] = result.redeemAmount[i].add(_computeKolTotalReward(pool, kol, 2, i));
            result.perfermanceAmount[i] = result.perfermanceAmount[i].add(_computeKolTotalReward(pool, kol, 3, i));
        }      
    }

    function getKolsReward(address pool) external view returns (address[] memory, uint[] memory) {
        EnumerableSet.AddressSet storage list = kolsList[pool];
        uint len = list.length();
        address[] memory tokens = poolsTokens[pool].tokenList;
        uint[] memory balances = new uint[](tokens.length);
        for (uint i = 0; i < len; i++) {
            (, uint[] memory singleReward) = this.getKolReward(pool, list.at(i));
            for(uint k; k < singleReward.length; k++){
                balances[k] = balances[k] + singleReward[k];
            }
        }

        return (tokens,balances);
    }

    function getUnKolReward(address pool, address kol) external returns (address[] memory,uint[] memory) {
        (address[] memory totalTokens, uint[] memory totalReward) = this.getKolReward(pool, kol);

        ClaimTokens storage singleKolHasReward = kolHasClaimed[pool][kol];
        // update length
        singleKolHasReward.tokens = totalTokens;
        uint amountsLen = singleKolHasReward.amounts.length;
        uint tokensLen = totalTokens.length;
        if(amountsLen != tokensLen){
            uint delta = tokensLen - amountsLen;
            for(uint i; i < delta; i++){
                singleKolHasReward.amounts.push(0);
            }
        }

        uint len = totalTokens.length;
        uint[] memory balances = new uint[](len);
        for(uint i; i<len; i++){
            balances[i] = totalReward[i] - singleKolHasReward.amounts[i];
        }

        return (totalTokens, balances);
    }

    function recordTokenInfo(
        address kol,
        address user,
        address[] calldata poolTokens,
        uint[] calldata tokensAmount
    ) external {
        address pool = msg.sender;
        uint len = poolTokens.length;
        require(len == tokensAmount.length, "ERR_TOKEN_LENGTH_NOT_MATCH");
        require(crpFactory.isCrp(pool), "ERR_INVALID_POOL_ADDRESS");
        UserKolInfo storage userKolBind = userKolList[pool][user];
        
        if (userKolBind.kol == address(0)) {
            userKolBind.kol = kol;
            if (!kolsList[pool].contains(kol)) kolsList[pool].addValue(kol);
        }
        address newKol = userKolBind.kol;
        require(newKol != address(0), "ERR_INVALID_KOL_ADDRESS");
        //total amount record
        poolInviteTotal[pool] = poolInviteTotal[pool].add(tokensAmount[0]);
        uint[] memory totalAmounts = new uint[](len);
        for (uint i; i < len; i++) {
            bool kolHasInvitations = kolTotalAmountList[pool][newKol].length == 0;
            kolHasInvitations
                ? totalAmounts[i] = tokensAmount[i]
                : totalAmounts[i] = tokensAmount[i].add(kolTotalAmountList[pool][newKol][i]);
        }
        kolTotalAmountList[pool][newKol] = totalAmounts;
        //kol user info record
        KolUserInfo[] storage userInfoArray = kolUserInfo[pool][newKol];
        uint index = userKolBind.index;
        if (index == 0) {
            KolUserInfo memory userInfo;
            userInfo.userAdr = user;
            userInfo.userAmount = tokensAmount;
            userInfoArray.push(userInfo);
            userKolBind.index = userInfoArray.length;
        } else {
            KolUserInfo storage userInfo = kolUserInfo[pool][newKol][index - 1];
            for (uint a; a < userInfo.userAmount.length; a++) {
                userInfo.userAmount[a] = userInfo.userAmount[a].add(tokensAmount[a]);
            }
        }
    }

    function setPoolParams(address pool, SmartPoolManager.KolPoolParams memory _poolParams) external onlyCrpFactory {
        PoolStatus storage status = poolsStatus[pool];
        require(crpFactory.isCrp(pool), "ERR_INVALID_POOL_ADDRESS");
        require(!status.isSetParams, "ERR_HAS_SETED");

        status.isSetParams = true;
        status.kolPoolConfig = _poolParams;
    }

    // function _getRatioTotal(address pool, uint types) internal view returns(uint){
    //     SmartPoolManager.KolPoolParams memory params = poolsStatus[pool].kolPoolConfig;
    //     if(types == 0) return params.managerFee.firstLevel.ratio.add(params.managerFee.secondLevel.ratio).add(params.managerFee.thirdLevel.ratio).add(params.managerFee.fourLevel.ratio);
    //     else if(types == 1) return params.issueFee.firstLevel.ratio.add(params.issueFee.secondLevel.ratio).add(params.issueFee.thirdLevel.ratio).add(params.issueFee.fourLevel.ratio);
    //     else if(types == 2) return params.redeemFee.firstLevel.ratio.add(params.redeemFee.secondLevel.ratio).add(params.redeemFee.thirdLevel.ratio).add(params.redeemFee.fourLevel.ratio);
    //     else if(types == 3) return params.perfermanceFee.firstLevel.ratio.add(params.perfermanceFee.secondLevel.ratio).add(params.perfermanceFee.thirdLevel.ratio).add(params.perfermanceFee.fourLevel.ratio);
    // }

    function getKolsAdr(address pool) external view returns (address[] memory) {
        return kolsList[pool].values();
    }

    function getPoolConfig(address pool) external view returns (SmartPoolManager.KolPoolParams memory) {
        return poolsStatus[pool].kolPoolConfig;
    }

    function setBlackList(address pool, bool bools) external onlyOwner _logs_ {
        poolsStatus[pool].isBlackList = bools;
    }

    function setCrpFactory(address adr) external onlyOwner _logs_ {
        crpFactory = ICRPFactory(adr);
    }

    function claimToken(
        address token,
        address user,
        uint amount
    ) external onlyOwner {
        IERC20(token).safeTransfer(user, amount);
    }

    function claimEther() external payable onlyOwner {
        msg.sender.transfer(address(this).balance);
    }

    function setVaultAdr(address adr) external onlyOwner _logs_ {
        vaultAddress = adr;
    }

    function getKolHasClaimed(address pool,address kol) external view returns(ClaimTokens memory) {
        return kolHasClaimed[pool][kol];
    }
        
    function getManageHasClaimed(address pool) external view returns(ClaimTokens memory) {
        return manageHasClaimed[pool];
    }

    function getKolUserInfo(address pool, address kol) external view  returns (KolUserInfo[] memory) {
        return kolUserInfo[pool][kol];
    }

    function getUserKolInfo(address pool, address user) external view  returns (UserKolInfo memory) {
        return userKolList[pool][user];
    }

    function _updatePool(
        address pool,
        uint types,
        address[] memory tokenIn,
        uint[] memory amountIn
    ) internal {
        PoolTokens storage tokens = poolsTokens[pool];

        for(uint i; i < tokenIn.length; i++){
            address t = tokenIn[i];
            uint b = amountIn[i];

            (bool isExit,uint index) = _arrIncludeAddr(tokens.tokenList, t);

            // update token and init value
            if(!isExit){
                tokens.tokenList.push(t);
                tokens.managerAmount.push(0);
                tokens.issueAmount.push(0);
                tokens.redeemAmount.push(0);
                tokens.perfermanceAmount.push(0);
                index = tokens.tokenList.length -1;
            }

            // update valut
            if(b != 0){
                if(types == 0) tokens.managerAmount[index] = tokens.managerAmount[index].add(b);
                else if(types == 1) tokens.issueAmount[index] = tokens.issueAmount[index].add(b);
                else if(types == 2) tokens.redeemAmount[index] = tokens.redeemAmount[index].add(b);
                else if(types == 3) tokens.perfermanceAmount[index] = tokens.perfermanceAmount[index].add(b);
                emit TypeAmountIn(pool, types, msg.sender, t, b);
            }
        }
    }

    function _arrIncludeAddr(address[] memory tokens, address target) internal pure returns(bool isInclude, uint index){
        for(uint i; i<tokens.length; i++){
            if(tokens[i] == target){ 
                isInclude = true;
                index = i;
                break;
            }
        }
    }

    function _transferHandle(
        address pool,
        address t,
        uint balance
    ) internal {
        require(balance != 0, "ERR_ILLEGAL_BALANCE");
        address[] memory managerAddressList = IDesynOwnable(pool).getOwners();
        uint[] memory ownerPercentage = IDesynOwnable(pool).getOwnerPercentage();
        uint allOwnerPercentage = IDesynOwnable(pool).allOwnerPercentage();

        for (uint k = 0; k < managerAddressList.length; k++) {
            address reciver = address(managerAddressList[k]).isContract()? IDSProxy(managerAddressList[k]).owner(): managerAddressList[k];
            uint b = balance.mul(ownerPercentage[k]).div(allOwnerPercentage);
            IERC20(t).safeTransfer(reciver, b);
            emit ManagerClaim(msg.sender, pool, reciver,t,b,block.timestamp);
        }
        emit ManagersClaim(msg.sender,pool,t,balance,block.timestamp);
    }

    function _levelJudge(uint amount, SmartPoolManager.feeParams memory _feeParams) internal pure returns (uint) {
        if (_feeParams.firstLevel.level <= amount && amount < _feeParams.secondLevel.level) return _feeParams.firstLevel.ratio;
        else if (_feeParams.secondLevel.level <= amount && amount < _feeParams.thirdLevel.level) return _feeParams.secondLevel.ratio;
        else if (_feeParams.thirdLevel.level <= amount && amount < _feeParams.fourLevel.level) return _feeParams.thirdLevel.ratio;
        else if (_feeParams.fourLevel.level <= amount) return _feeParams.fourLevel.ratio;
        return 0;
    }

    function _isClosePool(address pool) internal view returns (bool) {
        return ICRPPool(pool).etype() == ICRPPool.Etypes.CLOSED;
    }

    function _computeKolTotalReward(
        address pool,
        address kol,
        uint types,
        uint tokenIndex
    ) internal view returns (uint totalFee) {
        uint kolTotalAmount = kolTotalAmountList[pool][kol].length > 0 ? kolTotalAmountList[pool][kol][0] : 0;
        SmartPoolManager.KolPoolParams memory params = poolsStatus[pool].kolPoolConfig;

        PoolTokens memory tokens = poolsTokens[pool];

        if(kolTotalAmount == 0 || tokens.tokenList.length == 0) return 0;

        uint allKolTotalAmount = poolInviteTotal[pool];
        if (types == 0) totalFee = tokens.managerAmount[tokenIndex].mul(_levelJudge(kolTotalAmount, params.managerFee)).div(RATIO_BASE);
        else if (types == 1) totalFee = tokens.issueAmount[tokenIndex].mul(_levelJudge(kolTotalAmount, params.issueFee)).div(RATIO_BASE);
        else if (types == 2) totalFee = tokens.redeemAmount[tokenIndex].mul(_levelJudge(kolTotalAmount, params.redeemFee)).div(RATIO_BASE);
        else if (types == 3) totalFee = tokens.perfermanceAmount[tokenIndex].mul(_levelJudge(kolTotalAmount, params.perfermanceFee)).div(RATIO_BASE);
        
        return totalFee.mul(kolTotalAmount).div(allKolTotalAmount);
    }

    modifier onlyCrpFactory() {
        require(address(crpFactory) == msg.sender, "ERR_NOT_CRP_FACTORY");
        _;
    }

    modifier onlyVault() {
        require(vaultAddress == msg.sender, "ERR_NOT_CONTROLLER");
        _;
    }
}

pragma solidity 0.6.12;

library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint toDeleteIndex = valueIndex - 1;
            uint lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastvalue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastvalue;
                // Update the index for the moved value
                set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function addValue(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint index) internal view returns (address) {
        return address(uint160(uint(_at(set._inner, index))));
    }
    
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly {
            result := store
        }

        return result;
    }
}

// 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;
            }
        }
    }
}

// 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 */
}

pragma solidity 0.6.12;

interface IWETH {
    function balanceOf(address account) external view returns (uint);

    function deposit() external payable;

    function withdraw(uint) external;

    function approve(address guy, uint wad) external returns (bool);

    function transferFrom(
        address src,
        address dst,
        uint wad
    ) external returns (bool);
}

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

/**
 * @author Desyn Labs (and OpenZeppelin)
 * @title Protect against reentrant calls (and also selectively protect view functions)
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {_lock_} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `_lock_` guard, functions marked as
 * `_lock_` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `_lock_` entry
 * points to them.
 *
 * Also adds a _lockview_ modifier, which doesn't create a lock, but fails
 *   if another _lock_ call is in progress
 */
contract DesynReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

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

    uint private _status;

    constructor() internal {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `_lock_` function from another `_lock_`
     * function is not supported. It is possible to prevent this from happening
     * by making the `_lock_` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier lock() {
        // On the first call to _lock_, _notEntered will be true
        require(_status != _ENTERED, "ERR_REENTRY");

        // Any calls to _lock_ after this point will fail
        _status = _ENTERED;
        _;
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Also add a modifier that doesn't create a lock, but protects functions that
     *      should not be called while a _lock_ function is running
     */
    modifier viewlock() {
        require(_status != _ENTERED, "ERR_REENTRY_VIEW");
        _;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.6.12;
// Needed to handle structures externally
pragma experimental ABIEncoderV2;

import "./PCToken.sol";
import "../utils/DesynReentrancyGuard.sol";
import "../utils/DesynOwnable.sol";
import "../interfaces/IBFactory.sol";
import {RightsManager} from "../libraries/RightsManager.sol";
import "../libraries/SmartPoolManager.sol";
import "../libraries/SafeApprove.sol";
import "./WhiteToken.sol";
import "../libraries/SafeERC20.sol";
import '../libraries/Address.sol';

/**
 * @author Desyn Labs
 * @title Smart Pool with customizable features
 * @notice PCToken is the "Desyn Smart Pool" token (transferred upon finalization)
 * @dev Rights are defined as follows (index values into the array)
 * Note that functions called on bPool and bFactory may look like internal calls,
 *   but since they are contracts accessed through an interface, they are really external.
 * To make this explicit, we could write "IBPool(address(bPool)).function()" everywhere,
 *   instead of "bPool.function()".
 */
contract ConfigurableRightsPool is PCToken, DesynOwnable, DesynReentrancyGuard, WhiteToken {
    using DesynSafeMath for uint;
    using SafeERC20 for IERC20;
    using Address for address;

    // State variables
    IBFactory public bFactory;
    IBPool public bPool;

    // Struct holding the rights configuration
    RightsManager.Rights public rights;

    SmartPoolManager.Status public etfStatus;
    SmartPoolManager.Fund beginFund;
    SmartPoolManager.Fund endFund;

    // Store the list of tokens in the pool, and balances
    // NOTE that the token list is *only* used to store the pool tokens between
    //   construction and createPool - thereafter, use the underlying BPool's list
    //   (avoids synchronization issues)
    address[] private _initialTokens;
    uint[] private _initialBalances;
    uint[] private _initialWeights;

    // Whitelist of LPs (if configured)
    mapping(address => bool) private _liquidityProviderWhitelist;

    uint public constant CLAIM_PERIOD = 30 days;
    address public vaultAddress;

    bool hasSetWhiteTokens;
    bool initBool;
    bool public isCompletedCollect;
    bool public hasSetBeginFund;
    bool public hasSetEndFund;
    bool public hasClaimManageFee;

    SmartPoolManager.Etypes public etype;

    // Event declarations
    // Anonymous logger event - can only be filtered by contract address
    event LogCall(bytes4 indexed sig, address indexed caller, bytes data) anonymous;
    event LogJoin(address indexed caller, address indexed tokenIn, uint tokenAmountIn);
    event LogExit(address indexed caller, address indexed tokenOut, uint tokenAmountOut);
    event SizeChanged(address indexed caller, string indexed sizeType, uint oldSize, uint newSize);
    event PoolTokenInit(address indexed caller, address pool, address initToken, uint initTokenTotal, uint initShare);
    event SetManagerFee(uint indexed managerFee, uint indexed issueFee, uint indexed redeemFee, uint perfermanceFee);

    // Modifiers
    modifier logs() {
        emit LogCall(msg.sig, msg.sender, msg.data);
        _;
    }

    // Mark functions that require delegation to the underlying Pool
    modifier needsBPool() {
        require(address(bPool) != address(0), "ERR_NOT_CREATED");
        _;
    }

    modifier notPaused() {
        require(!bFactory.isPaused(), "!paused");
        _;
    }
 
    constructor(string memory tokenSymbol, string memory tokenName) public PCToken(tokenSymbol, tokenName) {}

    /**
     * @notice Construct a new Configurable Rights Pool (wrapper around BPool)
     * @dev _initialTokens are only used for temporary storage between construction
     *      and create pool, and should not be used thereafter! _initialTokens is destroyed in
     *      createPool to prevent this is kept in sync (defensively), but
     *      should never be used except in this constructor and createPool()
     * @param factoryAddress - the BPoolFactory used to create the underlying pool
     * @param poolParams - struct containing pool parameters
     * @param rightsStruct - Set of permissions we are assigning to this smart pool
     */

    function init(
        address factoryAddress,
        SmartPoolManager.PoolParams memory poolParams,
        RightsManager.Rights memory rightsStruct
    ) public {
        SmartPoolManager.initRequire(
            poolParams.managerFee,
            poolParams.issueFee,
            poolParams.redeemFee,
            poolParams.perfermanceFee,
            poolParams.tokenBalances.length,
            poolParams.tokenWeights.length,
            poolParams.constituentTokens.length,
            initBool
        );
        initBool = true;
        rights = rightsStruct;
        _initialTokens = poolParams.constituentTokens;
        _initialBalances = poolParams.tokenBalances;
        _initialWeights = poolParams.tokenWeights;

        etfStatus = SmartPoolManager.Status({
            collectPeriod: 0,
            collectEndTime: 0,
            closurePeriod: 0,
            closureEndTime: 0,
            upperCap: DesynConstants.MAX_UINT,
            floorCap: 0,
            managerFee: poolParams.managerFee,
            redeemFee: poolParams.redeemFee,
            issueFee: poolParams.issueFee,
            perfermanceFee: poolParams.perfermanceFee,
            startClaimFeeTime: block.timestamp
        });

        etype = poolParams.etype;

        bFactory = IBFactory(factoryAddress);
        vaultAddress = bFactory.getVault();
        emit SetManagerFee(etfStatus.managerFee, etfStatus.issueFee, etfStatus.redeemFee, etfStatus.perfermanceFee);
    }

    /**
     * @notice Set the cap (max # of pool tokens)
     * @dev _bspCap defaults in the constructor to unlimited
     *      Can set to 0 (or anywhere below the current supply), to halt new investment
     *      Prevent setting it before creating a pool, since createPool sets to intialSupply
     *      (it does this to avoid an unlimited cap window between construction and createPool)
     *      Therefore setting it before then has no effect, so should not be allowed
     * @param newCap - new value of the cap
     */
    function setCap(uint newCap) external logs lock needsBPool onlyOwner {
        require(etype == SmartPoolManager.Etypes.OPENED, "ERR_MUST_OPEN_ETF");
        emit SizeChanged(msg.sender, "UPPER", etfStatus.upperCap, newCap);
        etfStatus.upperCap = newCap;
    }

    function execute(
        address _target,
        uint _value,
        bytes calldata _data,
        bool isUnderlying
    ) external logs lock needsBPool returns (bytes memory _returnValue) {
        require(bFactory.getModuleStatus(address(this), msg.sender), 'MODULE IS NOT REGISTER');
        if (isUnderlying) {
        _returnValue = bPool.execute(_target, _value, _data);
        } else {
        _returnValue = _target.functionCallWithValue(_data, _value);
        }
    }

    function couldClaimManagerFee() public view returns(bool state,uint timePoint ,uint timeElapsed){
        bool isCloseETF = etype == SmartPoolManager.Etypes.CLOSED;
        timePoint = block.timestamp;
        if(isCloseETF && timePoint > etfStatus.closureEndTime) timePoint = etfStatus.closureEndTime;
        timeElapsed = DesynSafeMath.bsub(timePoint, etfStatus.startClaimFeeTime);
        if(timeElapsed >= CLAIM_PERIOD) state = true;
        if(isCloseETF && !isCompletedCollect) state = false;
    }

    function claimManagerFee() public virtual logs lock onlyAdmin needsBPool {
        _claimManagerFee();
    }

    function _claimManagerFee() internal {
        (bool state, uint timePoint ,uint timeElapsed) = couldClaimManagerFee();
        if(state){
            address[] memory poolTokens = bPool.getCurrentTokens();
            uint[] memory tokensAmount = SmartPoolManager.handleClaim(
                IConfigurableRightsPool(address(this)),
                bPool,
                poolTokens,
                etfStatus.managerFee,
                timeElapsed,
                CLAIM_PERIOD
            );
            IVault(vaultAddress).depositManagerToken(poolTokens, tokensAmount);
            etfStatus.startClaimFeeTime = timePoint;
        }
    }

    /**
     * @notice Create a new Smart Pool
     * @dev Delegates to internal function
     * @param initialSupply starting token balance
     * @param closurePeriod the etf closure period
     */
    function createPool(
        address creator,
        uint initialSupply,
        uint collectPeriod,
        SmartPoolManager.Period closurePeriod,
        SmartPoolManager.PoolTokenRange memory tokenRange
    ) external virtual onlyOwner logs lock notPaused {
        if (etype == SmartPoolManager.Etypes.CLOSED) {
            SmartPoolManager.createPoolHandle(collectPeriod, etfStatus.upperCap, initialSupply);

            uint oldCap = etfStatus.upperCap;
            uint oldFloor = etfStatus.floorCap;
            etfStatus.upperCap = initialSupply.bmul(tokenRange.bspCap).bdiv(_initialBalances[0]);
            etfStatus.floorCap = initialSupply.bmul(tokenRange.bspFloor).bdiv(_initialBalances[0]);
            emit PoolTokenInit(creator, address(this),_initialTokens[0], _initialBalances[0], initialSupply);
            emit SizeChanged(creator, "UPPER", oldCap, etfStatus.upperCap);
            emit SizeChanged(creator, "FLOOR", oldFloor, etfStatus.floorCap);

            uint period;
            uint collectEndTime = block.timestamp + collectPeriod;
            if (closurePeriod == SmartPoolManager.Period.DAY90) {
                period = 90 days;
            } else if (closurePeriod == SmartPoolManager.Period.DAY1) {
                period = 1 days;
            } else if (closurePeriod == SmartPoolManager.Period.DAY3) {
                period = 3 days;
            } else if (closurePeriod == SmartPoolManager.Period.DAY7) {
                period = 7 days;
            } else if (closurePeriod == SmartPoolManager.Period.DAY14) {
                period = 14 days;
            } else if (closurePeriod == SmartPoolManager.Period.DAY30) {
                period = 30 days;
            } else if (closurePeriod == SmartPoolManager.Period.DAY180) {
                period = 180 days;
            } else {
                period = 360 days;
            }
            uint closureEndTime = collectEndTime + period;

            etfStatus.collectPeriod = collectPeriod;
            etfStatus.collectEndTime = collectEndTime;
            etfStatus.closurePeriod = period;
            etfStatus.closureEndTime = closureEndTime;

            IUserVault(bFactory.getUserVault()).recordTokenInfo(creator, creator, _initialTokens, _initialBalances);
        }

        createPoolInternal(initialSupply);
    }

    /**
     * @notice Join a pool
     * @dev Emits a LogJoin event (for each token)
     *      bPool is a contract interface; function calls on it are external
     * @param poolAmountOut - number of pool tokens to receive
     * @param maxAmountsIn - Max amount of asset tokens to spend
     */
    function joinPool(
        uint poolAmountOut,
        uint[] calldata maxAmountsIn,
        address kol,
        address user
    ) external logs lock needsBPool notPaused {
        SmartPoolManager.joinPoolHandle(rights.canWhitelistLPs, canProvideLiquidity(user), etype == SmartPoolManager.Etypes.CLOSED, etfStatus.collectEndTime);
        
        if(rights.canTokenWhiteLists) {
            require(_initWhiteTokenState(),"ERR_SHOULD_SET_WHITETOKEN");
        }
        // Delegate to library to save space

        // Library computes actualAmountsIn, and does many validations
        // Cannot call the push/pull/min from an external library for
        // any of these pool functions. Since msg.sender can be anybody,
        // they must be internal
        uint[] memory actualAmountsIn = SmartPoolManager.joinPool(IConfigurableRightsPool(address(this)), bPool, poolAmountOut, maxAmountsIn, etfStatus.issueFee);

        // After createPool, token list is maintained in the underlying BPool
        address[] memory poolTokens = bPool.getCurrentTokens();
        uint[] memory issueFeesReceived = new uint[](poolTokens.length);

        uint _actualIssueFee = etfStatus.issueFee;
        if (etype == SmartPoolManager.Etypes.CLOSED) {
            IUserVault(bFactory.getUserVault()).recordTokenInfo(kol, user, poolTokens, actualAmountsIn);
            if (!isCompletedCollect) {
                _actualIssueFee = 0;
            }
        }

        for (uint i = 0; i < poolTokens.length; i++) {
            uint issueFeeReceived = SmartPoolManager.handleTransferInTokens(
                IConfigurableRightsPool(address(this)),
                bPool,
                poolTokens[i],
                actualAmountsIn[i],
                _actualIssueFee
            );

            emit LogJoin(user, poolTokens[i], actualAmountsIn[i]);
            issueFeesReceived[i] = issueFeeReceived;
        }

        if (_actualIssueFee != 0) {
            IVault(vaultAddress).depositIssueRedeemPToken(poolTokens, issueFeesReceived, issueFeesReceived, false);
        }
        _mintPoolShare(poolAmountOut);
        _pushPoolShare(user, poolAmountOut);

        // checkout the state that elose ETF collect completed and claime fee.
        bool isCompletedMoment = etype == SmartPoolManager.Etypes.CLOSED && varTotalSupply >= etfStatus.floorCap && !isCompletedCollect;
        if (isCompletedMoment) {
            isCompletedCollect = true;
            SmartPoolManager.handleFeeClaim(
                IConfigurableRightsPool(address(this)), bPool,
                poolTokens,
                etfStatus.issueFee,
                false
            );
        }
    }

    /**
     * @notice Exit a pool - redeem pool tokens for underlying assets
     * @dev Emits a LogExit event for each token
     *      bPool is a contract interface; function calls on it are external
     * @param poolAmountIn - amount of pool tokens to redeem
     * @param minAmountsOut - minimum amount of asset tokens to receive
     */
    function exitPool(uint poolAmountIn, uint[] calldata minAmountsOut, address user) external logs lock needsBPool notPaused {
        uint actualPoolAmountIn;
        bool isCloseEtfCollectEndWithFailure;

        uint _actualRedeemFee = etfStatus.redeemFee;
        if(etype == SmartPoolManager.Etypes.CLOSED){
            isCloseEtfCollectEndWithFailure = !isCompletedCollect && block.timestamp >= etfStatus.collectEndTime;
            if(!isCloseEtfCollectEndWithFailure){
                if(!hasClaimManageFee) {
                    _claimManagerFee();
                    hasClaimManageFee = true;
                }
                if(hasSetBeginFund && !hasSetEndFund) snapshotEndAssets();
            }
            if(isCloseEtfCollectEndWithFailure) _actualRedeemFee = 0;
        }

        actualPoolAmountIn = SmartPoolManager.exitPoolHandleB(
            IConfigurableRightsPool(address(this)),
            etype == SmartPoolManager.Etypes.CLOSED,
            isCompletedCollect,
            etfStatus.closureEndTime,
            etfStatus.collectEndTime,
            poolAmountIn
        );
        // Library computes actualAmountsOut, and does many validations
        uint[] memory actualAmountsOut = SmartPoolManager.exitPool(IConfigurableRightsPool(address(this)), bPool, actualPoolAmountIn, minAmountsOut);
        _pullPoolShare(msg.sender, actualPoolAmountIn);
        _burnPoolShare(actualPoolAmountIn);

        // After createPool, token list is maintained in the underlying BPool
        address[] memory poolTokens = bPool.getCurrentTokens();

        uint[] memory redeemFeesReceived = new uint[](poolTokens.length);
        for (uint i = 0; i < poolTokens.length; i++) {
            (, uint finalAmountOut, uint redeemFeeReceived) = SmartPoolManager.exitPoolHandleA(
                IConfigurableRightsPool(address(this)),
                bPool,
                poolTokens[i],
                actualAmountsOut[i],
                _actualRedeemFee
            );
            redeemFeesReceived[i] = redeemFeeReceived;

            emit LogExit(user, poolTokens[i], finalAmountOut);
        }

        if (_actualRedeemFee != 0) {
            IVault(vaultAddress).depositIssueRedeemPToken(poolTokens, redeemFeesReceived, redeemFeesReceived, true);
        }
    }

    /**
     * @notice Add to the whitelist of liquidity providers (if enabled)
     * @param provider - address of the liquidity provider
     */
    function whitelistLiquidityProvider(address provider) external onlyOwner lock logs {
        SmartPoolManager.WhitelistHandle(rights.canWhitelistLPs, true, provider);
        _liquidityProviderWhitelist[provider] = true;
    }

    /**
     * @notice Remove from the whitelist of liquidity providers (if enabled)
     * @param provider - address of the liquidity provider
     */
    function removeWhitelistedLiquidityProvider(address provider) external onlyOwner lock logs {
        SmartPoolManager.WhitelistHandle(rights.canWhitelistLPs, _liquidityProviderWhitelist[provider], provider);
        _liquidityProviderWhitelist[provider] = false;
    }

    /**
     * @notice Check if an address is a liquidity provider
     * @dev If the whitelist feature is not enabled, anyone can provide liquidity (assuming finalized)
     * @return boolean value indicating whether the address can join a pool
     */
    function canProvideLiquidity(address provider) public view returns (bool) {
        if (rights.canWhitelistLPs) {
            return _liquidityProviderWhitelist[provider] || provider == getController() ;
        } else {
            // Probably don't strictly need this (could just return true)
            // But the null address can't provide funds
            return provider != address(0);
        }
    }

    /**
     * @notice Getter for specific permissions
     * @dev value of the enum is just the 0-based index in the enumeration
     * @return token boolean true if we have the given permission
     */
    function hasPermission(RightsManager.Permissions permission) external view virtual returns (bool) {
        return RightsManager.hasPermission(rights, permission);
    }

    /**
     * @notice Getter for the RightsManager contract
     * @dev Convenience function to get the address of the RightsManager library (so clients can check version)
     * @return address of the RightsManager library
     */
    function getRightsManagerVersion() external pure returns (address) {
        return address(RightsManager);
    }

    /**
     * @notice Getter for the DesynSafeMath contract
     * @dev Convenience function to get the address of the DesynSafeMath library (so clients can check version)
     * @return address of the DesynSafeMath library
     */
    function getDesynSafeMathVersion() external pure returns (address) {
        return address(DesynSafeMath);
    }

    /**
     * @notice Getter for the SmartPoolManager contract
     * @dev Convenience function to get the address of the SmartPoolManager library (so clients can check version)
     * @return address of the SmartPoolManager library
     */
    function getSmartPoolManagerVersion() external pure returns (address) {
        return address(SmartPoolManager);
    }

    // "Public" versions that can safely be called from SmartPoolManager
    // Allows only the contract itself to call them (not the controller or any external account)

    function mintPoolShareFromLib(uint amount) public {
        require(msg.sender == address(this), "ERR_NOT_CONTROLLER");

        _mint(amount);
    }

    function pushPoolShareFromLib(address to, uint amount) public {
        require(msg.sender == address(this), "ERR_NOT_CONTROLLER");

        _push(to, amount);
    }

    function pullPoolShareFromLib(address from, uint amount) public {
        require(msg.sender == address(this), "ERR_NOT_CONTROLLER");

        _pull(from, amount);
    }

    function burnPoolShareFromLib(uint amount) public {
        require(msg.sender == address(this), "ERR_NOT_CONTROLLER");

        _burn(amount);
    }

    /**
     * @notice Create a new Smart Pool
     * @dev Initialize the swap fee to the value provided in the CRP constructor
     * @param initialSupply starting token balance
     */
    function createPoolInternal(uint initialSupply) internal {
        require(address(bPool) == address(0), "ERR_IS_CREATED");

        // To the extent possible, modify state variables before calling functions
        _mintPoolShare(initialSupply);
        _pushPoolShare(msg.sender, initialSupply);

        // Deploy new BPool (bFactory and bPool are interfaces; all calls are external)
        bPool = bFactory.newLiquidityPool();
        // EXIT_FEE must always be zero, or ConfigurableRightsPool._pushUnderlying will fail
        SmartPoolManager.createPoolInternalHandle(bPool, initialSupply);
        for (uint i = 0; i < _initialTokens.length; i++) {
            address t = _initialTokens[i];
            uint bal = _initialBalances[i];
            uint denorm = _initialWeights[i];

            _verifyWhiteToken(t);
            IERC20(t).safeTransferFrom(msg.sender, address(this), bal);
            IERC20(t).safeApprove(address(bPool), 0);
            IERC20(t).safeApprove(address(bPool), DesynConstants.MAX_UINT);

            bPool.bind(t, bal, denorm);
        }

        while (_initialTokens.length > 0) {
            // Modifying state variable after external calls here,
            // but not essential, so not dangerous
            _initialTokens.pop();
        }
    }

    function addTokenToWhitelist(uint[] memory sort, address[] memory token) external onlyOwner {
        require(rights.canTokenWhiteLists && !hasSetWhiteTokens, "ERR_NO_RIGHTS");
        require(sort.length == token.length, "ERR_SORT_TOKEN_MISMATCH");
        for (uint i = 0; i < token.length; i++) {
            bool inRange = bFactory.isTokenWhitelistedForVerify(sort[i], token[i]);
            require(inRange, "TOKEN_MUST_IN_WHITE_LISTS");
            _addTokenToWhitelist(sort[i], token[i]);
        }
        hasSetWhiteTokens = true;
    }

    function _verifyWhiteToken(address token) public view {
        require(bFactory.isTokenWhitelistedForVerify(token), "ERR_NOT_WHITE_TOKEN");

        if (hasSetWhiteTokens) {
            require(_queryIsTokenWhitelisted(token), "ERR_NOT_WHITE_TOKEN");
        }
    }

    // Rebind BPool and pull tokens from address
    // bPool is a contract interface; function calls on it are external
    function _pullUnderlying(
        address erc20,
        address from,
        uint amount
    ) internal needsBPool {
        // Gets current Balance of token i, Bi, and weight of token i, Wi, from BPool.
        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);
    }

    // Rebind BPool and push tokens to address
    // bPool is a contract interface; function calls on it are external
    function _pushUnderlying(
        address erc20,
        address to,
        uint amount
    ) internal needsBPool {
        // Gets current Balance of token i, Bi, and weight of token i, Wi, from BPool.
        uint tokenBalance = bPool.getBalance(erc20);
        uint tokenWeight = bPool.getDenormalizedWeight(erc20);
        bPool.rebind(erc20, DesynSafeMath.bsub(tokenBalance, amount), tokenWeight);

        IERC20(erc20).safeTransfer(to, amount);
    }

    // Wrappers around corresponding core functions

    function _mint(uint amount) internal override {
        super._mint(amount);
        require(varTotalSupply <= etfStatus.upperCap, "ERR_CAP_LIMIT_REACHED");
    }

    function _mintPoolShare(uint amount) internal {
        _mint(amount);
    }

    function _pushPoolShare(address to, uint amount) internal {
        _push(to, amount);
    }

    function _pullPoolShare(address from, uint amount) internal {
        _pull(from, amount);
    }

    function _burnPoolShare(uint amount) internal {
        _burn(amount);
    }

    // ================ SnapshotAssets ================

    function snapshotBeginAssets() external logs {
        uint nowTime = block.timestamp;
        require(!hasSetBeginFund && isCompletedCollect && etype == SmartPoolManager.Etypes.CLOSED && nowTime <= (etfStatus.collectEndTime + 3 days) , "ERR_CONDITIONS_NOT_MET");

        bool inT1 = nowTime <= (etfStatus.collectEndTime + 1 days);
        if(inT1) require(adminList[msg.sender] || msg.sender == _owner, "onlyAdmin");

        beginFund = snapshotAssets();
        hasSetBeginFund = true;

        if(nowTime < etfStatus.collectEndTime) etfStatus.collectEndTime = block.timestamp;
    }

    function beginFundAssets() external view returns(SmartPoolManager.Fund memory){
        return beginFund;
    }

    function endFundAssets() external view returns(SmartPoolManager.Fund memory){
        return endFund;
    }

    function snapshotEndAssets() public logs {
        uint nowTime = block.timestamp;
        require(!hasSetEndFund && hasSetBeginFund && etype == SmartPoolManager.Etypes.CLOSED && nowTime >= etfStatus.closureEndTime, "ERR_CONDITIONS_NOT_MET");

        bool inT1 = (etfStatus.closureEndTime + 1 days) >= nowTime;
        if(inT1) require(adminList[msg.sender] || msg.sender == _owner, "onlyAdmin");

        endFund = snapshotAssets();

        uint preShareValueEnd = endFund.fundAmount.bdiv(endFund.etfAmount);
        uint preShareValueBegin = beginFund.fundAmount.bdiv(beginFund.etfAmount);
      
        if(preShareValueEnd > preShareValueBegin){
            uint perfermanceRatio = etfStatus.perfermanceFee.bmul(preShareValueEnd-preShareValueBegin).bdiv(preShareValueEnd);
            // claim perfomance reward 
            SmartPoolManager.handleFeeClaim(
                    IConfigurableRightsPool(address(this)), bPool,
                    bPool.getCurrentTokens(),
                    perfermanceRatio,
                    true);
        }

        hasSetEndFund = true;
    }

    function snapshotAssets() public returns(SmartPoolManager.Fund memory){
        SmartPoolManager.Fund memory tempFund;
        tempFund.etfAmount = varTotalSupply;

        (tempFund.tokens, tempFund.tokensAmount) = _getPoolTokensInfo();
        tempFund.fundAmount = Oracles(bFactory.getOracleAddress()).getAllPrice(tempFund.tokens, tempFund.tokensAmount);
        tempFund.snapshotTime = block.timestamp;
        return tempFund;
    }

    function _getPoolTokensInfo() internal view returns (address[] memory, uint[] memory) {
        address[] memory tokens = bPool.getCurrentTokens();
        uint[] memory totalBalances = new uint[](tokens.length);
        for(uint i; i < tokens.length ;i++) {
            totalBalances[i] = bPool.getBalance(tokens[i]);
        }
        return (tokens,totalBalances);
    }
}

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

// Imports

import "../libraries/DesynSafeMath.sol";
import "../interfaces/IERC20.sol";

// Contracts

/* solhint-disable func-order */

/**
 * @author Desyn Labs
 * @title Highly opinionated token implementation
 */
contract PCToken is IERC20 {
    using DesynSafeMath for uint;

    // State variables
    string public constant NAME = "Desyn Smart Pool";
    uint8 public constant DECIMALS = 18;

    // No leading underscore per naming convention (non-private)
    // Cannot call totalSupply (name conflict)
    // solhint-disable-next-line private-vars-leading-underscore
    uint internal varTotalSupply;

    mapping(address => uint) private _balance;
    mapping(address => mapping(address => uint)) private _allowance;

    string private _symbol;
    string private _name;

    // Event declarations

    // See definitions above; must be redeclared to be emitted from this contract
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    // Function declarations

    /**
     * @notice Base token constructor
     * @param tokenSymbol - the token symbol
     */
    constructor(string memory tokenSymbol, string memory tokenName) public {
        _symbol = tokenSymbol;
        _name = tokenName;
    }

    // External functions

    /**
     * @notice Getter for allowance: amount spender will be allowed to spend on behalf of owner
     * @param owner - owner of the tokens
     * @param spender - entity allowed to spend the tokens
     * @return uint - remaining amount spender is allowed to transfer
     */
    function allowance(address owner, address spender) external view override returns (uint) {
        return _allowance[owner][spender];
    }

    /**
     * @notice Getter for current account balance
     * @param account - address we're checking the balance of
     * @return uint - token balance in the account
     */
    function balanceOf(address account) external view override returns (uint) {
        return _balance[account];
    }

    /**
     * @notice Approve owner (sender) to spend a certain amount
     * @dev emits an Approval event
     * @param spender - entity the owner (sender) is approving to spend his tokens
     * @param amount - number of tokens being approved
     * @return bool - result of the approval (will always be true if it doesn't revert)
     */
    function approve(address spender, uint amount) external override returns (bool) {
        /* In addition to the increase/decreaseApproval functions, could
           avoid the "approval race condition" by only allowing calls to approve
           when the current approval amount is 0
        
           require(_allowance[msg.sender][spender] == 0, "ERR_RACE_CONDITION");

           Some token contracts (e.g., KNC), already revert if you call approve 
           on a non-zero allocation. To deal with these, we use the SafeApprove library
           and safeApprove function when adding tokens to the pool.
        */

        _allowance[msg.sender][spender] = amount;

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

        return true;
    }

    /**
     * @notice Increase the amount the spender is allowed to spend on behalf of the owner (sender)
     * @dev emits an Approval event
     * @param spender - entity the owner (sender) is approving to spend his tokens
     * @param amount - number of tokens being approved
     * @return bool - result of the approval (will always be true if it doesn't revert)
     */
    function increaseApproval(address spender, uint amount) external returns (bool) {
        _allowance[msg.sender][spender] = DesynSafeMath.badd(_allowance[msg.sender][spender], amount);

        emit Approval(msg.sender, spender, _allowance[msg.sender][spender]);

        return true;
    }

    /**
     * @notice Decrease the amount the spender is allowed to spend on behalf of the owner (sender)
     * @dev emits an Approval event
     * @dev If you try to decrease it below the current limit, it's just set to zero (not an error)
     * @param spender - entity the owner (sender) is approving to spend his tokens
     * @param amount - number of tokens being approved
     * @return bool - result of the approval (will always be true if it doesn't revert)
     */
    function decreaseApproval(address spender, uint amount) external returns (bool) {
        uint oldValue = _allowance[msg.sender][spender];
        // Gas optimization - if amount == oldValue (or is larger), set to zero immediately
        if (amount >= oldValue) {
            _allowance[msg.sender][spender] = 0;
        } else {
            _allowance[msg.sender][spender] = DesynSafeMath.bsub(oldValue, amount);
        }

        emit Approval(msg.sender, spender, _allowance[msg.sender][spender]);

        return true;
    }

    /**
     * @notice Transfer the given amount from sender (caller) to recipient
     * @dev _move emits a Transfer event if successful
     * @param recipient - entity receiving the tokens
     * @param amount - number of tokens being transferred
     * @return bool - result of the transfer (will always be true if it doesn't revert)
     */
    function transfer(address recipient, uint amount) external override returns (bool) {
        require(recipient != address(0), "ERR_ZERO_ADDRESS");

        _move(msg.sender, recipient, amount);

        return true;
    }

    /**
     * @notice Transfer the given amount from sender to recipient
     * @dev _move emits a Transfer event if successful; may also emit an Approval event
     * @param sender - entity sending the tokens (must be caller or allowed to spend on behalf of caller)
     * @param recipient - recipient of the tokens
     * @param amount - number of tokens being transferred
     * @return bool - result of the transfer (will always be true if it doesn't revert)
     */
    function transferFrom(
        address sender,
        address recipient,
        uint amount
    ) external override returns (bool) {
        require(recipient != address(0), "ERR_ZERO_ADDRESS");
        require(msg.sender == sender || amount <= _allowance[sender][msg.sender], "ERR_PCTOKEN_BAD_CALLER");

        _move(sender, recipient, amount);

        // memoize for gas optimization
        uint oldAllowance = _allowance[sender][msg.sender];

        // If the sender is not the caller, adjust the allowance by the amount transferred
        if (msg.sender != sender && oldAllowance != uint(-1)) {
            _allowance[sender][msg.sender] = DesynSafeMath.bsub(oldAllowance, amount);

            emit Approval(sender, msg.sender, _allowance[sender][msg.sender]);
        }

        return true;
    }

    // public functions

    /**
     * @notice Getter for the total supply
     * @dev declared external for gas optimization
     * @return uint - total number of tokens in existence
     */
    function totalSupply() external view override returns (uint) {
        return varTotalSupply;
    }

    // Public functions

    /**
     * @dev Returns the name of the token.
     *      We allow the user to set this name (as well as the symbol).
     *      Alternatives are 1) A fixed string (original design)
     *                       2) A fixed string plus the user-defined symbol
     *                          return string(abi.encodePacked(NAME, "-", _symbol));
     */
    function name() external view returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() external view override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() external view override returns (uint8) {
        return DECIMALS;
    }

    // internal functions

    // Mint an amount of new tokens, and add them to the balance (and total supply)
    // Emit a transfer amount from the null address to this contract
    function _mint(uint amount) internal virtual {
        _balance[address(this)] = DesynSafeMath.badd(_balance[address(this)], amount);
        varTotalSupply = DesynSafeMath.badd(varTotalSupply, amount);

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

    // Burn an amount of new tokens, and subtract them from the balance (and total supply)
    // Emit a transfer amount from this contract to the null address
    function _burn(uint amount) internal virtual {
        // Can't burn more than we have
        // Remove require for gas optimization - bsub will revert on underflow
        // require(_balance[address(this)] >= amount, "ERR_INSUFFICIENT_BAL");

        _balance[address(this)] = DesynSafeMath.bsub(_balance[address(this)], amount);
        varTotalSupply = DesynSafeMath.bsub(varTotalSupply, amount);

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

    // Transfer tokens from sender to recipient
    // Adjust balances, and emit a Transfer event
    function _move(
        address sender,
        address recipient,
        uint amount
    ) internal virtual {
        // Can't send more than sender has
        // Remove require for gas optimization - bsub will revert on underflow
        // require(_balance[sender] >= amount, "ERR_INSUFFICIENT_BAL");

        _balance[sender] = DesynSafeMath.bsub(_balance[sender], amount);
        _balance[recipient] = DesynSafeMath.badd(_balance[recipient], amount);

        emit Transfer(sender, recipient, amount);
    }

    // Transfer from this contract to recipient
    // Emits a transfer event if successful
    function _push(address recipient, uint amount) internal {
        _move(address(this), recipient, amount);
    }

    // Transfer from recipient to this contract
    // Emits a transfer event if successful
    function _pull(address sender, uint amount) internal {
        _move(sender, address(this), amount);
    }
}

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

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
contract DesynOwnable {
    // State variables
    mapping(address => bool) public adminList;
    uint public allOwnerPercentage = 10000;

    address _owner;
    address[] owners;
    uint[] ownerPercentage;
    bool initialized;
    // Event declarations

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    event AddAdmin(address indexed newAdmin, uint indexed amount);
    event RemoveAdmin(address indexed oldAdmin, uint indexed amount);

    // Modifiers

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == msg.sender, "ERR_NOT_CONTROLLER");
        _;
    }

    modifier onlyAdmin() {
        require(adminList[msg.sender] || msg.sender == _owner, "onlyAdmin");
        _;
    }

    // Function declarations

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() internal {
        _owner = msg.sender;
    }

    function initHandle(address[] memory _owners, uint[] memory _ownerPercentage) external {
        require(_owners.length == _ownerPercentage.length, "ownerP");
        require(!initialized, "initialized!");
        
        _addAdmin(_owners);

        owners = _owners;
        ownerPercentage = _ownerPercentage;

        initialized = true;
        _ownerPercentageChecker();
    }

    function setManagersInfo(address[] memory _owners, uint[] memory _ownerPercentage) external onlyOwner {
        _beforeControllerChange();
        _clearAdmin();
        _addAdmin(_owners);
        owners = _owners;
        ownerPercentage = _ownerPercentage;
        _ownerPercentageChecker();
    }

    function _ownerPercentageChecker() internal view {
        uint totalPercentage;
        for (uint i; i < ownerPercentage.length; i++) {
            totalPercentage+=ownerPercentage[i];
        } 
        require(totalPercentage == 10000, "ERR_ILLEGAL_PERCENTAGE"); 
    }

    function _addAdmin(address[] memory admins) internal {
        bool hasOwner;
        for (uint i; i < admins.length; i++) {
            adminList[admins[i]] = true;
            if(admins[i] == _owner) hasOwner = true;
        } 

        if(initialized) require(hasOwner, "ERR_NEW_ADMINS_HAS_NO_OWNER");    
    }

    function _clearAdmin() internal {
        for(uint i; i < owners.length; i++) {
            delete adminList[owners[i]];
        }
    }

    /**
     * @notice Transfers ownership of the contract to a new account (`newOwner`).
     *         Can only be called by the current owner
     * @dev external for gas optimization
     * @param newOwner - address of new owner
     */
    function setController(address newOwner) external onlyOwner {
        _beforeControllerChange();
        require(newOwner != address(0), "ERR_ZERO_ADDRESS");

        emit OwnershipTransferred(_owner, newOwner);

        for (uint i;i < owners.length; i++) {
            if (owners[i] == _owner) {
                owners[i] = newOwner;
            }
        }

        adminList[_owner] = false;
        adminList[newOwner] = true;
        _owner = newOwner;
    }

    // @dev Returns list of owners.
    // @return List of owner addresses.
    function getOwners() external view returns (address[] memory) {
        return owners;
    }

    // @dev Returns list of owners.
    // @return List of owner addresses.
    function getOwnerPercentage() external view returns (uint[] memory) {
        return ownerPercentage;
    }

    /**
     * @notice Returns the address of the current owner
     * @dev external for gas optimization
     * @return address - of the owner (AKA controller)
     */
    function getController() public view returns (address) {
        return _owner;
    }

    function _beforeControllerChange() internal virtual {}
}

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

// Imports

import "../interfaces/IERC20.sol";

// Libraries

/**
 * @author PieDAO (ported to Desyn Labs)
 * @title SafeApprove - set approval for tokens that require 0 prior approval
 * @dev Perhaps to address the known ERC20 race condition issue
 *      See https://github.com/crytic/not-so-smart-contracts/tree/master/race_condition
 *      Some tokens - notably KNC - only allow approvals to be increased from 0
 */
library SafeApprove {
    /**
     * @notice handle approvals of tokens that require approving from a base of 0
     * @param token - the token we're approving
     * @param spender - entity the owner (sender) is approving to spend his tokens
     * @param amount - number of tokens being approved
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint amount
    ) internal returns (bool) {
        uint currentAllowance = token.allowance(address(this), spender);

        // Do nothing if allowance is already set to this value
        if (currentAllowance == amount) {
            return true;
        }

        // If approval is not zero reset it to zero first
        if (currentAllowance != 0) {
            token.approve(spender, 0);
        }

        // do the actual approval
        return token.approve(spender, amount);
    }
}

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

contract WhiteToken {
    // add token log
    event LOG_WHITELIST(address indexed spender, uint indexed sort, address indexed caller, address token);
    // del token log
    event LOG_DEL_WHITELIST(address indexed spender, uint indexed sort, address indexed caller, address token);

    // record the number of whitelists.
    uint private _whiteTokenCount;
    // token address => is white token.
    mapping(address => bool) private _isTokenWhitelisted;
    // Multi level white token.
    // type => token address => is white token.
    mapping(uint => mapping(address => bool)) private _tokenWhitelistedInfo;

    function _queryIsTokenWhitelisted(address token) internal view returns (bool) {
        return _isTokenWhitelisted[token];
    }

    // for factory to verify
    function _isTokenWhitelistedForVerify(uint sort, address token) internal view returns (bool) {
        return _tokenWhitelistedInfo[sort][token];
    }

    // add sort token
    function _addTokenToWhitelist(uint sort, address token) internal {
        require(token != address(0), "ERR_INVALID_TOKEN_ADDRESS");
        require(_queryIsTokenWhitelisted(token) == false, "ERR_HAS_BEEN_ADDED_WHITE");

        _tokenWhitelistedInfo[sort][token] = true;
        _isTokenWhitelisted[token] = true;
        _whiteTokenCount++;

        emit LOG_WHITELIST(address(this), sort, msg.sender, token);
    }

    // remove sort token
    function _removeTokenFromWhitelist(uint sort, address token) internal {
        require(_queryIsTokenWhitelisted(token) == true, "ERR_NOT_WHITE_TOKEN");

        require(_tokenWhitelistedInfo[sort][token], "ERR_SORT_NOT_MATCHED");

        _tokenWhitelistedInfo[sort][token] = false;
        _isTokenWhitelisted[token] = false;
        _whiteTokenCount--;
        emit LOG_DEL_WHITELIST(address(this), sort, msg.sender, token);
    }

    // already has init
    function _initWhiteTokenState() internal view returns (bool) {
        return _whiteTokenCount == 0 ?  false : true;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is disstributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

pragma solidity 0.6.12;
import "../base/WhiteToken.sol";
import "../interfaces/IBFactory.sol";
import "../libraries/SafeERC20.sol";

contract Factory is WhiteToken {
    using SafeERC20 for IERC20;

    event LOG_NEW_POOL(address indexed caller, address indexed pool);
    event LOG_BLABS(address indexed caller, address indexed blabs);
    event LOG_ROUTER(address indexed caller, address indexed router);
    event LOG_VAULT(address indexed vault, address indexed caller);
    event LOG_USER_VAULT(address indexed vault, address indexed caller);
    event LOG_MANAGER(address indexed manager, address indexed caller);
    event LOG_ORACLE(address indexed caller, address indexed oracle);
    event SYSTEM_MODULE_CHANGED(address module, bool state);
    event MODULE_STATUS_CHANGE(address etf, address module, bool status);
    event PAUSED_STATUS(bool state);

    mapping(address => bool) private _isLiquidityPool;
    mapping(address => bool) private _isSystemModule;
    mapping(address => mapping(address => bool)) private _isModuleRegistered;
    uint private counters;
    bytes private bytecodes;
    bool public isPaused;

    address private _blabs;
    address private _oracle;
    address private _vaultAddress;
    address private _userVaultAddress;

    constructor(
      address oracle,
      address vault,
      address userVault
    ) public {
        _blabs = msg.sender;
        _oracle = oracle;
        _vaultAddress = vault;
        _userVaultAddress = userVault;
    }

    function addTokenToWhitelist(uint[] memory sort, address[] memory token) external onlyBlabs {
        require(sort.length == token.length, "ERR_SORT_TOKEN_MISMATCH");
        for (uint i = 0; i < sort.length; i++) {
            _addTokenToWhitelist(sort[i], token[i]);
        }
    }

    function removeTokenFromWhitelist(uint[] memory sort, address[] memory token) external onlyBlabs {
        require(sort.length == token.length, "ERR_SORT_TOKEN_MISMATCH");
        for (uint i = 0; i < sort.length; i++) {
            _removeTokenFromWhitelist(sort[i], token[i]);
        }
    }

    function isTokenWhitelistedForVerify(uint sort, address token) external view returns (bool) {
        return _isTokenWhitelistedForVerify(sort, token);
    }

    function isTokenWhitelistedForVerify(address token) external view returns (bool) {
        return _queryIsTokenWhitelisted(token);
    }

    function isLiquidityPool(address b) external view returns (bool) {
        return _isLiquidityPool[b];
    }

    function createPool() internal returns (address base) {
        bytes memory bytecode = bytecodes;
        bytes32 salt = keccak256(abi.encodePacked(counters++));

        assembly {
            base := create2(0, add(bytecode, 32), mload(bytecode), salt)
            if iszero(extcodesize(base)) {
                revert(0, 0)
            }
        }
        counters++;
    }

    function newLiquidityPool() external returns (IBPool) {
        address lpool = createPool();
        _isLiquidityPool[lpool] = true;
        emit LOG_NEW_POOL(msg.sender, lpool);
        IBPool(lpool).setController(msg.sender);
        return IBPool(lpool);
    }

    function getBLabs() external view returns (address) {
        return _blabs;
    }

    function setBLabs(address b) external onlyBlabs {
        require(b != address(0), "ERR_ZERO_ADDRESS");
        emit LOG_BLABS(msg.sender, b);
        _blabs = b;
    }

    function getModuleStatus(address etf, address module) external view returns (bool) {
        return _isSystemModule[module] || _isModuleRegistered[etf][module];
    }

    function getOracleAddress() external view returns (address) {
        return _oracle;
    }

    function setSystemModule(address module, bool state) external onlyBlabs {
        require(module != address(0), "ZERO ADDRESS");

        _isSystemModule[module] = state;

        emit SYSTEM_MODULE_CHANGED(module, state);
    }

    function registerModule(address etf, address module) external onlyBlabs {
        require(etf != address(0), "ZERO ETF ADDRESS");
        require(module != address(0), "ZERO ADDRESS");

        _isModuleRegistered[etf][module] = true;

        emit MODULE_STATUS_CHANGE(etf, module, true);
    }

    function removeModule(address etf, address module) external onlyBlabs {
        require(etf != address(0), "ZERO ETF ADDRESS");
        require(module != address(0), "ZERO ADDRESS");

        _isModuleRegistered[etf][module] = false;

        emit MODULE_STATUS_CHANGE(etf, module, false);
    }

    function setOracle(address oracle) external onlyBlabs {
        require(oracle != address(0), "ERR_ZERO_ADDRESS");
        emit LOG_ORACLE(msg.sender, oracle);
        _oracle = oracle;
    }

    function collect(IERC20 token) external onlyBlabs {
        uint collected = token.balanceOf(address(this));
        token.safeTransfer(_blabs, collected);
    }

    function getVault() external view returns (address) {
        return _vaultAddress;
    }

    function setVault(address newVault) external onlyBlabs {
        require(newVault != address(0), "ERR_ZERO_ADDRESS");
        _vaultAddress = newVault;
        emit LOG_VAULT(newVault, msg.sender);
    }

    function getUserVault() external view returns (address) {
        return _userVaultAddress;
    }

    function setUserVault(address newVault) external onlyBlabs {
        require(newVault != address(0), "ERR_ZERO_ADDRESS");
        _userVaultAddress = newVault;
        emit LOG_USER_VAULT(newVault, msg.sender);
    }

    function setProtocolPaused(bool state) external onlyBlabs {
        isPaused = state;
        emit PAUSED_STATUS(state);
    }

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

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

// SPDX-License-Identifier: GPL-3.0-or-later
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

pragma solidity 0.6.12;

import "./LpToken.sol";
import "./Math.sol";
import "../interfaces/IBFactory.sol";
import "../interfaces/IConfigurableRightsPool.sol";
import "../libraries/Address.sol";
import "../libraries/SafeERC20.sol";

contract LiquidityPool is BBronze, LpToken, Math {
    using Address for address;
    using SafeERC20 for IERC20;

    struct Record {
        bool bound; // is token bound to pool
        uint index; // private
        uint denorm; // denormalized weight
        uint balance;
    }

    event LOG_JOIN(address indexed caller, address indexed tokenIn, uint tokenAmountIn);

    event LOG_EXIT(address indexed caller, address indexed tokenOut, uint tokenAmountOut);

    event LOG_REBALANCE(address indexed tokenA, address indexed tokenB, uint newWeightA, uint newWeightB, uint newBalanceA, uint newBalanceB, bool isSoldout);

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

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

    modifier _lock_() {
        require(!_mutex, "ERR_REENTRY");
        _mutex = true;
        _;
        _mutex = false;
    }

    modifier _viewlock_() {
        require(!_mutex, "ERR_REENTRY");
        _;
    }

    bool private _mutex;

    IBFactory private _factory; // Factory address to push token exitFee to
    address private _controller; // has CONTROL role
    bool private _publicSwap; // true if PUBLIC can call SWAP functions

    // `finalize` sets `PUBLIC can SWAP`, `PUBLIC can JOIN`
    bool private _finalized;

    address[] private _tokens;
    mapping(address => Record) private _records;
    uint private _totalWeight;

    constructor() public {
        _controller = msg.sender;
        _factory = IBFactory(msg.sender);
        _publicSwap = false;
        _finalized = false;
    }

    function isPublicSwap() external view returns (bool) {
        return _publicSwap;
    }

    function isFinalized() external view returns (bool) {
        return _finalized;
    }

    function isBound(address t) external view returns (bool) {
        return _records[t].bound;
    }

    function getNumTokens() external view returns (uint) {
        return _tokens.length;
    }

    function getCurrentTokens() external view _viewlock_ returns (address[] memory tokens) {
        return _tokens;
    }

    function getFinalTokens() external view _viewlock_ returns (address[] memory tokens) {
        require(_finalized, "ERR_NOT_FINALIZED");
        return _tokens;
    }

    function getDenormalizedWeight(address token) external view _viewlock_ returns (uint) {
        // require(_records[token].bound, "ERR_NOT_BOUND");
        return _records[token].denorm;
    }

    function getTotalDenormalizedWeight() external view _viewlock_ returns (uint) {
        return _totalWeight;
    }

    function getNormalizedWeight(address token) external _viewlock_ returns (uint) {
        require(_records[token].bound, "ERR_NOT_BOUND");
        Oracles oracle = Oracles(_factory.getOracleAddress());
        uint denorm = _records[token].denorm;
        uint price = oracle.getPrice(token);

        uint[] memory _balances = new uint[](_tokens.length);
        for (uint i = 0; i < _tokens.length; i++) {
            _balances[i] = getBalance(_tokens[i]);
        }
        uint totalValue = oracle.getAllPrice(_tokens, _balances);
        uint currentValue = bmul(price, getBalance(token));
        return bdiv(currentValue, totalValue);
    }

    function getBalance(address token) public view _viewlock_ returns (uint) {
        // require(_records[token].bound, "ERR_NOT_BOUND");
        return _records[token].balance;
    }

    function getController() external view _viewlock_ returns (address) {
        return _controller;
    }

    function setController(address manager) external _logs_ _lock_ {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(manager != address(0), "ERR_ZERO_ADDRESS");
        _controller = manager;
    }

    function setPublicSwap(bool public_) external _logs_ _lock_ {
        require(!_finalized, "ERR_IS_FINALIZED");
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        _publicSwap = public_;
    }

    function finalize() external _logs_ _lock_ {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(!_finalized, "ERR_IS_FINALIZED");
        require(_tokens.length >= MIN_BOUND_TOKENS, "ERR_MIN_TOKENS");

        _finalized = true;
        _publicSwap = true;

        _mintPoolShare(INIT_POOL_SUPPLY);
        _pushPoolShare(msg.sender, INIT_POOL_SUPPLY);
    }

    function bind(
        address token,
        uint balance,
        uint denorm
    )
        external
        _logs_ // _lock_  Bind does not lock because it jumps to `rebind`, which does
    {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(!_records[token].bound, "ERR_IS_BOUND");
        require(!_finalized, "ERR_IS_FINALIZED");

        require(_tokens.length < MAX_BOUND_TOKENS, "ERR_MAX_TOKENS");

        _records[token] = Record({
            bound: true,
            index: _tokens.length,
            denorm: 0, // balance and denorm will be validated
            balance: 0 // and set by `rebind`
        });
        _tokens.push(token);
        rebind(token, balance, denorm);
    }

    function rebind(
        address token,
        uint balance,
        uint denorm
    ) public _logs_ _lock_ {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(_records[token].bound, "ERR_NOT_BOUND");
        require(!_finalized, "ERR_IS_FINALIZED");

        require(denorm >= MIN_WEIGHT, "ERR_MIN_WEIGHT");
        require(denorm <= MAX_WEIGHT, "ERR_MAX_WEIGHT");
        require(balance >= MIN_BALANCE, "ERR_MIN_BALANCE");

        // Adjust the denorm and totalWeight
        uint oldWeight = _records[token].denorm;
        if (denorm > oldWeight) {
            _totalWeight = badd(_totalWeight, bsub(denorm, oldWeight));
            require(_totalWeight <= MAX_TOTAL_WEIGHT, "ERR_MAX_TOTAL_WEIGHT");
        } else if (denorm < oldWeight) {
            _totalWeight = bsub(_totalWeight, bsub(oldWeight, denorm));
        }
        _records[token].denorm = denorm;

        // Adjust the balance record and actual token balance
        uint oldBalance = _records[token].balance;
        _records[token].balance = balance;
        if (balance > oldBalance) {
            _pullUnderlying(token, msg.sender, bsub(balance, oldBalance));
        } else if (balance < oldBalance) {
            // In this case liquidity is being withdrawn, so charge EXIT_FEE
            uint tokenBalanceWithdrawn = bsub(oldBalance, balance);
            _pushUnderlying(token, msg.sender, tokenBalanceWithdrawn);
        }
    }

    function execute(
        address _target,
        uint _value,
        bytes calldata _data
    ) external _logs_ _lock_ returns (bytes memory _returnValue) {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(!_finalized, "ERR_IS_FINALIZED");

        _returnValue = _target.functionCallWithValue(_data, _value);

        return _returnValue;
    }

    function unbind(address token) external _logs_ _lock_ {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(_records[token].bound, "ERR_NOT_BOUND");
        require(!_finalized, "ERR_IS_FINALIZED");

        uint tokenBalance = _records[token].balance;

        _totalWeight = bsub(_totalWeight, _records[token].denorm);

        // Swap the token-to-unbind with the last token,
        // then delete the last token
        uint index = _records[token].index;
        uint last = _tokens.length - 1;
        _tokens[index] = _tokens[last];
        _records[_tokens[index]].index = index;
        _tokens.pop();
        _records[token] = Record({bound: false, index: 0, denorm: 0, balance: 0});

        _pushUnderlying(token, msg.sender, tokenBalance);
    }

    function unbindPure(address token) external _logs_ _lock_ {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(_records[token].bound, "ERR_NOT_BOUND");
        require(!_finalized, "ERR_IS_FINALIZED");

        // Swap the token-to-unbind with the last token,
        // then delete the last token
        uint index = _records[token].index;
        uint last = _tokens.length - 1;
        _tokens[index] = _tokens[last];
        _records[_tokens[index]].index = index;
        _tokens.pop();
        _records[token] = Record({bound: false, index: 0, denorm: 0, balance: 0});
    }

    function rebindPure(
        address token,
        uint balance,
        uint denorm,
        bool isBound
    ) public _logs_ _lock_ {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");

        if (!isBound) {
            require(_tokens.length < MAX_BOUND_TOKENS, "ERR_MAX_TOKENS");

            _records[token] = Record({
                bound: true,
                index: _tokens.length,
                denorm: denorm,
                balance: balance
            });
            _tokens.push(token);
        } else {
            _records[token].denorm = denorm;
            _records[token].balance = balance;
        }
    }

    // Absorb any tokens that have been sent to this contract into the pool
    function gulp(address token) external _logs_ _lock_ {
        require(IConfigurableRightsPool(_controller).adminList(msg.sender), 'NOT_ADMIN');
        require(_records[token].bound, "ERR_NOT_BOUND");
        _records[token].balance = IERC20(token).balanceOf(address(this));
    }

    function joinPool(uint poolAmountOut, uint[] calldata maxAmountsIn) external _logs_ _lock_ {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(_finalized, "ERR_NOT_FINALIZED");

        uint poolTotal = this.totalSupply();
        uint ratio = bdiv(poolAmountOut, poolTotal);
        require(ratio != 0, "ERR_MATH_APPROX");

        for (uint i = 0; i < _tokens.length; i++) {
            address t = _tokens[i];
            uint bal = _records[t].balance;
            uint tokenAmountIn = bmul(ratio, bal);
            require(tokenAmountIn != 0, "ERR_MATH_APPROX");
            require(tokenAmountIn <= maxAmountsIn[i], "ERR_LIMIT_IN");
            _records[t].balance = badd(_records[t].balance, tokenAmountIn);
            emit LOG_JOIN(msg.sender, t, tokenAmountIn);
            _pullUnderlying(t, msg.sender, tokenAmountIn);
        }
        _mintPoolShare(poolAmountOut);
        _pushPoolShare(msg.sender, poolAmountOut);
    }

    function exitPool(uint poolAmountIn, uint[] calldata minAmountsOut) external _logs_ _lock_ {
        require(msg.sender == _controller, "ERR_NOT_CONTROLLER");
        require(_finalized, "ERR_NOT_FINALIZED");

        uint poolTotal = this.totalSupply();
        uint ratio = bdiv(poolAmountIn, poolTotal);
        require(ratio != 0, "ERR_MATH_APPROX");

        _pullPoolShare(msg.sender, poolAmountIn);
        _burnPoolShare(poolAmountIn);

        for (uint i = 0; i < _tokens.length; i++) {
            address t = _tokens[i];
            uint bal = _records[t].balance;
            uint tokenAmountOut = bmul(ratio, bal);
            require(tokenAmountOut != 0, "ERR_MATH_APPROX");
            require(tokenAmountOut >= minAmountsOut[i], "ERR_LIMIT_OUT");
            _records[t].balance = bsub(_records[t].balance, tokenAmountOut);
            emit LOG_EXIT(msg.sender, t, tokenAmountOut);
            _pushUnderlying(t, msg.sender, tokenAmountOut);
        }
    }

    function _pullUnderlying(
        address erc20,
        address from,
        uint amount
    ) internal {
        IERC20(erc20).safeTransferFrom(from, address(this), amount);
    }

    function _pushUnderlying(
        address erc20,
        address to,
        uint amount
    ) internal {
        IERC20(erc20).safeTransfer(to, amount);
    }

    function _pullPoolShare(address from, uint amount) internal {
        _pull(from, amount);
    }

    function _pushPoolShare(address to, uint amount) internal {
        _push(to, amount);
    }

    function _mintPoolShare(uint amount) internal {
        _mint(amount);
    }

    function _burnPoolShare(uint amount) internal {
        _burn(amount);
    }

    receive() external payable {}
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity 0.6.12;

import "./Num.sol";
import "../interfaces/IERC20.sol";

// Highly opinionated token implementation

contract LpTokenBase is Num {
    mapping(address => uint) internal _balance;
    mapping(address => mapping(address => uint)) internal _allowance;
    uint internal _totalSupply;

    event Approval(address indexed src, address indexed dst, uint amt);
    event Transfer(address indexed src, address indexed dst, uint amt);

    function _mint(uint amt) internal {
        _balance[address(this)] = badd(_balance[address(this)], amt);
        _totalSupply = badd(_totalSupply, amt);
        emit Transfer(address(0), address(this), amt);
    }

    function _burn(uint amt) internal {
        require(_balance[address(this)] >= amt, "ERR_INSUFFICIENT_BAL");
        _balance[address(this)] = bsub(_balance[address(this)], amt);
        _totalSupply = bsub(_totalSupply, amt);
        emit Transfer(address(this), address(0), amt);
    }

    function _move(
        address src,
        address dst,
        uint amt
    ) internal {
        require(_balance[src] >= amt, "ERR_INSUFFICIENT_BAL");
        _balance[src] = bsub(_balance[src], amt);
        _balance[dst] = badd(_balance[dst], amt);
        emit Transfer(src, dst, amt);
    }

    function _push(address to, uint amt) internal {
        _move(address(this), to, amt);
    }

    function _pull(address from, uint amt) internal {
        _move(from, address(this), amt);
    }
}

contract LpToken is LpTokenBase, IERC20 {
    string private _name = "Desyn Pool Token";
    string private _symbol = "DPT";
    uint8 private _decimals = 18;

    function name() external view returns (string memory) {
        return _name;
    }

    function symbol() external view override returns (string memory) {
        return _symbol;
    }

    function decimals() external view override returns (uint8) {
        return _decimals;
    }

    function allowance(address src, address dst) external view override returns (uint) {
        return _allowance[src][dst];
    }

    function balanceOf(address whom) external view override returns (uint) {
        return _balance[whom];
    }

    function totalSupply() external view override returns (uint) {
        return _totalSupply;
    }

    function approve(address dst, uint amt) external override returns (bool) {
        _allowance[msg.sender][dst] = amt;
        emit Approval(msg.sender, dst, amt);
        return true;
    }

    function increaseApproval(address dst, uint amt) external returns (bool) {
        _allowance[msg.sender][dst] = badd(_allowance[msg.sender][dst], amt);
        emit Approval(msg.sender, dst, _allowance[msg.sender][dst]);
        return true;
    }

    function decreaseApproval(address dst, uint amt) external returns (bool) {
        uint oldValue = _allowance[msg.sender][dst];
        if (amt > oldValue) {
            _allowance[msg.sender][dst] = 0;
        } else {
            _allowance[msg.sender][dst] = bsub(oldValue, amt);
        }
        emit Approval(msg.sender, dst, _allowance[msg.sender][dst]);
        return true;
    }

    function transfer(address dst, uint amt) external override returns (bool) {
        require(dst != address(0),"ERR_BAD_RECIVER");
        _move(msg.sender, dst, amt);
        return true;
    }

    function transferFrom(
        address src,
        address dst,
        uint amt
    ) external override returns (bool) {
        require(dst != address(0),"ERR_BAD_RECIVER");
        require(msg.sender == src || amt <= _allowance[src][msg.sender], "ERR_LPTOKEN_BAD_CALLER");
        _move(src, dst, amt);
        if (msg.sender != src && _allowance[src][msg.sender] != uint(-1)) {
            _allowance[src][msg.sender] = bsub(_allowance[src][msg.sender], amt);
            emit Approval(src, msg.sender, _allowance[src][msg.sender]);
        }
        return true;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 20
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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IConfigurableRightsPool","name":"crp","type":"address"},{"internalType":"uint256","name":"newCap","type":"uint256"}],"name":"setCap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract AbstractPool","name":"pool","type":"address"},{"internalType":"address","name":"newController","type":"address"}],"name":"setController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract AbstractPool","name":"pool","type":"address"},{"internalType":"address[]","name":"_owners","type":"address[]"},{"internalType":"uint256[]","name":"_ownerPercentage","type":"uint256[]"}],"name":"setManagersInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract AbstractPool","name":"pool","type":"address"},{"internalType":"bool","name":"publicSwap","type":"bool"}],"name":"setPublicSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IConfigurableRightsPool","name":"pool","type":"address"}],"name":"snapshotBeginAssets","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IConfigurableRightsPool","name":"pool","type":"address"}],"name":"snapshotEndAssets","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IConfigurableRightsPool","name":"crp","type":"address"},{"internalType":"address","name":"provider","type":"address"}],"name":"whitelistLiquidityProvider","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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