Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Is this a proxy?
• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "./Swap.sol";
import "./interfaces/IFlashLoanReceiver.sol";
import "./libraries/SafeMath.sol";
import "./libraries/SafeERC20.sol";

/**
 * @title Swap - A StableSwap implementation in solidity.
 * @notice This contract is responsible for custody of closely pegged assets (eg. group of stablecoins)
 * and automatic market making system. Users become an LP (Liquidity Provider) by depositing their tokens
 * in desired ratios for an exchange of the pool token that represents their share of the pool.
 * Users can burn pool tokens and withdraw their share of token(s).
 *
 * Each time a swap between the pooled tokens happens, a set fee incurs which effectively gets
 * distributed to the LPs.
 *
 * In case of emergencies, admin can pause additional deposits, swaps, or single-asset withdraws - which
 * stops the ratio of the tokens in the pool from changing.
 * Users can always withdraw their tokens via multi-asset withdraws.
 *
 * @dev Most of the logic is stored as a library `SwapUtils` for the sake of reducing contract's
 * deployment size.
 */
contract SwapFlashLoan is Swap {
    
    using SafeMath for uint256;
    using SafeERC20 for IERC20;

    // Total fee that is charged on all flashloans in BPS. Borrowers must repay the amount plus the flash loan fee.
    // This fee is split between the protocol and the pool.
    uint256 public flashLoanFeeBPS;
    // Share of the flash loan fee that goes to the protocol in BPS. A portion of each flash loan fee is allocated
    // to the protocol rather than the pool.
    uint256 public protocolFeeShareBPS;
    // Max BPS for limiting flash loan fee settings.
    uint256 public constant MAX_BPS = 10000;

    bool public isFlashLoanEnabled = false;

    /*** EVENTS ***/
    event FlashLoan(
        address indexed receiver,
        uint8 tokenIndex,
        uint256 amount,
        uint256 amountFee,
        uint256 protocolFee
    );

    /**
     * @notice Initializes this Swap contract with the given parameters.
     * This will also clone a LPToken contract that represents users'
     * LP positions. The owner of LPToken will be this contract - which means
     * only this contract is allowed to mint/burn tokens.
     *
     * @param _pooledTokens an array of ERC20s this pool will accept
     * @param decimals the decimals to use for each pooled token,
     * eg 8 for WBTC. Cannot be larger than POOL_PRECISION_DECIMALS
     * @param lpTokenName the long-form name of the token to be deployed
     * @param lpTokenSymbol the short symbol for the token to be deployed
     * @param _a the amplification coefficient * n * (n - 1). See the
     * StableSwap paper for details
     * @param _fee default swap fee to be initialized with
     * @param _adminFee default adminFee to be initialized with
     * @param lpTokenTargetAddress the address of an existing LPToken contract to use as a target
     */
    function initialize(
        IERC20[] memory _pooledTokens,
        uint8[] memory decimals,
        string memory lpTokenName,
        string memory lpTokenSymbol,
        uint256 _a,
        uint256 _fee,
        uint256 _adminFee,
        address lpTokenTargetAddress
    ) public virtual override initializer {
    Swap.initialize(
            _pooledTokens,
            decimals,
            lpTokenName,
            lpTokenSymbol,
            _a,
            _fee,
            _adminFee,
            lpTokenTargetAddress
        );
        flashLoanFeeBPS = 8; // 8 bps
        protocolFeeShareBPS = 0; // 0 bps
    }

    /*** STATE MODIFYING FUNCTIONS ***/

    /**
     * @notice Borrow the specified token from this pool for this transaction only. This function will call
     * `IFlashLoanReceiver(receiver).executeOperation` and the `receiver` must return the full amount of the token
     * and the associated fee by the end of the callback transaction. If the conditions are not met, this call
     * is reverted.
     * @param receiver the address of the receiver of the token. This address must implement the IFlashLoanReceiver
     * interface and the callback function `executeOperation`.
     * @param token the protocol fee in bps to be applied on the total flash loan fee
     * @param amount the total amount to borrow in this transaction
     * @param params optional data to pass along to the callback function
     */
    function flashLoan(
        address receiver,
        IERC20 token,
        uint256 amount,
        bytes memory params
    ) external nonReentrant {

        require(isFlashLoanEnabled, "Flashloan is not enabled yet");
        uint8 tokenIndex = getTokenIndex(address(token));
        uint256 availableLiquidityBefore = token.balanceOf(address(this));
        uint256 protocolBalanceBefore =
            availableLiquidityBefore.sub(swapStorage.balances[tokenIndex]);
        require(
            amount > 0 && availableLiquidityBefore >= amount,
            "invalid amount"
        );

        // Calculate the additional amount of tokens the pool should end up with
        uint256 amountFee = amount.mul(flashLoanFeeBPS).div(10000);
        // Calculate the portion of the fee that will go to the protocol
        uint256 protocolFee = amountFee.mul(protocolFeeShareBPS).div(10000);
        require(amountFee > 0, "amount is small for a flashLoan");

        // Transfer the requested amount of tokens
        token.safeTransfer(receiver, amount);

        // Execute callback function on receiver
        IFlashLoanReceiver(receiver).executeOperation(
            address(this),
            address(token),
            amount,
            amountFee,
            params
        );

        uint256 availableLiquidityAfter = token.balanceOf(address(this));
        require(
            availableLiquidityAfter >= availableLiquidityBefore.add(amountFee),
            "flashLoan fee is not met"
        );

        swapStorage.balances[tokenIndex] = availableLiquidityAfter
            .sub(protocolBalanceBefore)
            .sub(protocolFee);
        emit FlashLoan(receiver, tokenIndex, amount, amountFee, protocolFee);
    }

    /*** ADMIN FUNCTIONS ***/

    /**
     * @notice Updates the flash loan fee parameters. This function can only be called by the owner.
     * @param newFlashLoanFeeBPS the total fee in bps to be applied on future flash loans
     * @param newProtocolFeeShareBPS the protocol fee in bps to be applied on the total flash loan fee
     */
    function setFlashLoanFees(
        uint256 newFlashLoanFeeBPS,
        uint256 newProtocolFeeShareBPS
    ) external onlyOwner {
        require(
            newFlashLoanFeeBPS > 0 &&
                newFlashLoanFeeBPS <= MAX_BPS &&
                newProtocolFeeShareBPS <= MAX_BPS,
            "fees are not in valid range"
        );
        flashLoanFeeBPS = newFlashLoanFeeBPS;
        protocolFeeShareBPS = newProtocolFeeShareBPS;
    }

    function toggleFlashLoan(
        bool enableFlashLoan
    ) external onlyOwner {
        isFlashLoanEnabled = enableFlashLoan;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "./libraries/SafeMath.sol";
import "./libraries/SafeERC20.sol";
import "./libraries/Clones.sol";
import "./libraries/ReentrancyGuardUpgradeable.sol";
import "./libraries/OwnerPausableUpgradeable.sol";
import "./SwapUtils.sol";
import "./AmplificationUtils.sol";

/**
 * @title Swap - A StableSwap implementation in solidity.
 * @notice This contract is responsible for custody of closely pegged assets (eg. group of stablecoins)
 * and automatic market making system. Users become an LP (Liquidity Provider) by depositing their tokens
 * in desired ratios for an exchange of the pool token that represents their share of the pool.
 * Users can burn pool tokens and withdraw their share of token(s).
 *
 * Each time a swap between the pooled tokens happens, a set fee incurs which effectively gets
 * distributed to the LPs.
 *
 * In case of emergencies, admin can pause additional deposits, swaps, or single-asset withdraws - which
 * stops the ratio of the tokens in the pool from changing.
 * Users can always withdraw their tokens via multi-asset withdraws.
 *
 * @dev Most of the logic is stored as a library `SwapUtils` for the sake of reducing contract's
 * deployment size.
 */
contract Swap is OwnerPausableUpgradeable, ReentrancyGuardUpgradeable {
    using SafeERC20 for IERC20;
    using SafeMath for uint256;
    using SwapUtils for SwapUtils.Swap;
    using AmplificationUtils for SwapUtils.Swap;

    // Struct storing data responsible for automatic market maker functionalities. In order to
    // access this data, this contract uses SwapUtils library. For more details, see SwapUtils.sol
    SwapUtils.Swap public swapStorage;

    // Maps token address to an index in the pool. Used to prevent duplicate tokens in the pool.
    // swapFromBase(address pool, address basePool, uint8 tokenIndexFrom, uint8 tokenIndexTo, uint256 dx, uint256 minDy, uint256 deadline)Index function also relies on this mapping to retrieve token index.
    mapping(address => uint8) private tokenIndexes;

    /*** EVENTS ***/

    // events replicated from SwapUtils to make the ABI easier for dumb
    // clients
    event TokenSwap(
        address indexed buyer,
        uint256 tokensSold,
        uint256 tokensBought,
        uint128 soldId,
        uint128 boughtId
    );
    event AddLiquidity(
        address indexed provider,
        uint256[] tokenAmounts,
        uint256[] fees,
        uint256 invariant,
        uint256 lpTokenSupply
    );
    event RemoveLiquidity(
        address indexed provider,
        uint256[] tokenAmounts,
        uint256 lpTokenSupply
    );
    event RemoveLiquidityOne(
        address indexed provider,
        uint256 lpTokenAmount,
        uint256 lpTokenSupply,
        uint256 boughtId,
        uint256 tokensBought
    );
    event RemoveLiquidityImbalance(
        address indexed provider,
        uint256[] tokenAmounts,
        uint256[] fees,
        uint256 invariant,
        uint256 lpTokenSupply
    );
    event NewAdminFee(uint256 newAdminFee);
    event NewSwapFee(uint256 newSwapFee);
    event RampA(
        uint256 oldA,
        uint256 newA,
        uint256 initialTime,
        uint256 futureTime
    );
    event StopRampA(uint256 currentA, uint256 time);

    /**
     * @notice Initializes this Swap contract with the given parameters.
     * This will also clone a LPToken contract that represents users'
     * LP positions. The owner of LPToken will be this contract - which means
     * only this contract is allowed to mint/burn tokens.
     *
     * @param _pooledTokens an array of ERC20s this pool will accept
     * @param decimals the decimals to use for each pooled token,
     * eg 8 for WBTC. Cannot be larger than POOL_PRECISION_DECIMALS
     * @param lpTokenName the long-form name of the token to be deployed
     * @param lpTokenSymbol the short symbol for the token to be deployed
     * @param _a the amplification coefficient * n * (n - 1). See the
     * StableSwap paper for details
     * @param _fee default swap fee to be initialized with
     * @param _adminFee default adminFee to be initialized with
     * @param lpTokenTargetAddress the address of an existing LPToken contract to use as a target
     */
    function initialize(
        IERC20[] memory _pooledTokens,
        uint8[] memory decimals,
        string memory lpTokenName,
        string memory lpTokenSymbol,
        uint256 _a,
        uint256 _fee,
        uint256 _adminFee,
        address lpTokenTargetAddress
    ) public virtual initializer {
        __OwnerPausable_init();
        __ReentrancyGuard_init();
        // Check _pooledTokens and precisions parameter
        require(_pooledTokens.length > 1, "_pooledTokens.length <= 1");
        require(_pooledTokens.length <= 32, "_pooledTokens.length > 32");
        require(
            _pooledTokens.length == decimals.length,
            "_pooledTokens decimals mismatch"
        );

        uint256[] memory precisionMultipliers = new uint256[](decimals.length);

        for (uint8 i = 0; i < _pooledTokens.length; i++) {
            if (i > 0) {
                // Check if index is already used. Check if 0th element is a duplicate.
                require(
                    tokenIndexes[address(_pooledTokens[i])] == 0 &&
                        _pooledTokens[0] != _pooledTokens[i],
                    "Duplicate tokens"
                );
            }
            require(
                address(_pooledTokens[i]) != address(0),
                "The 0 address isn't an ERC-20"
            );
            require(
                decimals[i] <= SwapUtils.POOL_PRECISION_DECIMALS,
                "Token decimals exceeds max"
            );
            precisionMultipliers[i] =
                10 **
                    uint256(SwapUtils.POOL_PRECISION_DECIMALS).sub(
                        uint256(decimals[i])
                    );
            tokenIndexes[address(_pooledTokens[i])] = i;
        }

        // Check _a, _fee, _adminFee parameters
        require(_a < AmplificationUtils.MAX_A, "_a exceeds maximum");
        require(_fee < SwapUtils.MAX_SWAP_FEE, "_fee exceeds maximum");
        require(
            _adminFee < SwapUtils.MAX_ADMIN_FEE,
            "_adminFee exceeds maximum"
        );

        // Clone and initialize a LPToken contract
        LPToken lpToken = LPToken(Clones.clone(lpTokenTargetAddress));
        require(
            lpToken.initialize(lpTokenName, lpTokenSymbol),
            "could not init lpToken clone"
        );

        // Initialize swapStorage struct
        swapStorage.lpToken = lpToken;
        swapStorage.pooledTokens = _pooledTokens;
        swapStorage.tokenPrecisionMultipliers = precisionMultipliers;
        swapStorage.balances = new uint256[](_pooledTokens.length);
        swapStorage.initialA = _a.mul(AmplificationUtils.A_PRECISION);
        swapStorage.futureA = _a.mul(AmplificationUtils.A_PRECISION);
        // swapStorage.initialATime = 0;
        // swapStorage.futureATime = 0;
        swapStorage.swapFee = _fee;
        swapStorage.adminFee = _adminFee;
    }

    /*** MODIFIERS ***/

    /**
     * @notice Modifier to check deadline against current timestamp
     * @param deadline latest timestamp to accept this transaction
     */
    modifier deadlineCheck(uint256 deadline) {
        require(block.timestamp <= deadline, "Deadline not met");
        _;
    }

    /*** VIEW FUNCTIONS ***/

    /**
     * @notice Return A, the amplification coefficient * n * (n - 1)
     * @dev See the StableSwap paper for details
     * @return A parameter
     */
    function getA() external view virtual returns (uint256) {
        return swapStorage.getA();
    }

    /**
     * @notice Return A in its raw precision form
     * @dev See the StableSwap paper for details
     * @return A parameter in its raw precision form
     */
    function getAPrecise() external view virtual returns (uint256) {
        return swapStorage.getAPrecise();
    }

    /**
     * @notice Return address of the pooled token at given index. Reverts if tokenIndex is out of range.
     * @param index the index of the token
     * @return address of the token at given index
     */
    function getToken(uint8 index) public view virtual returns (IERC20) {
        require(index < swapStorage.pooledTokens.length, "Out of range");
        return swapStorage.pooledTokens[index];
    }    

    function getTokens() external view returns (IERC20[] memory) {
        return swapStorage.pooledTokens;
    }

    function getTokenPrecisionMultipliers() external view returns (uint256[] memory) {
        return swapStorage.tokenPrecisionMultipliers;
    }

    /**
     * @notice Return the index of the given token address. Reverts if no matching
     * token is found.
     * @param tokenAddress address of the token
     * @return the index of the given token address
     */
    function getTokenIndex(address tokenAddress)
        public
        view
        virtual
        returns (uint8)
    {
        uint8 index = tokenIndexes[tokenAddress];
        require(
            address(getToken(index)) == tokenAddress,
            "Token does not exist"
        );
        return index;
    }

    /**
     * @notice Return current balance of the pooled token at given index
     * @param index the index of the token
     * @return current balance of the pooled token at given index with token's native precision
     */
    function getTokenBalance(uint8 index)
        external
        view
        virtual
        returns (uint256)
    {
        require(index < swapStorage.pooledTokens.length, "Index out of range");
        return swapStorage.balances[index];
    }

    /**
     * @notice Get the virtual price, to help calculate profit
     * @return the virtual price, scaled to the POOL_PRECISION_DECIMALS
     */
    function getVirtualPrice() external view virtual returns (uint256) {
        return swapStorage.getVirtualPrice();
    }

    /**
     * @notice Calculate amount of tokens you receive on swap
     * @param tokenIndexFrom the token the user wants to sell
     * @param tokenIndexTo the token the user wants to buy
     * @param dx the amount of tokens the user wants to sell. If the token charges
     * a fee on transfers, use the amount that gets transferred after the fee.
     * @return amount of tokens the user will receive
     */
    function calculateSwap(
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx
    ) external view virtual returns (uint256) {
        return swapStorage.calculateSwap(tokenIndexFrom, tokenIndexTo, dx);
    }

    function getNumberOfTokens() external view returns (uint256) {
        return swapStorage.pooledTokens.length;
    }
        
    function getTokenBalances() external view returns (uint256[] memory) {
        return swapStorage.balances;
    }

    function getLpToken() external view returns (LPToken) {
        return swapStorage.lpToken;
    }


    function getAdminBalances() external view returns (uint256[] memory adminBalances) {
        uint256 length = swapStorage.pooledTokens.length;
        adminBalances = new uint256[](length);
        for (uint256 i = 0; i < length; i++) {
            adminBalances[i] = swapStorage.getAdminBalance(i);
        }
    }
   

    /**
     * @notice A simple method to calculate prices from deposits or
     * withdrawals, excluding fees but including slippage. This is
     * helpful as an input into the various "min" parameters on calls
     * to fight front-running
     *
     * @dev This shouldn't be used outside frontends for user estimates.
     *
     * @param amounts an array of token amounts to deposit or withdrawal,
     * corresponding to pooledTokens. The amount should be in each
     * pooled token's native precision. If a token charges a fee on transfers,
     * use the amount that gets transferred after the fee.
     * @param deposit whether this is a deposit or a withdrawal
     * @return token amount the user will receive
     */
    function calculateTokenAmount(uint256[] calldata amounts, bool deposit)
        external
        view
        virtual
        returns (uint256)
    {
        return swapStorage.calculateTokenAmount(amounts, deposit);
    }

    /**
     * @notice A simple method to calculate amount of each underlying
     * tokens that is returned upon burning given amount of LP tokens
     * @param amount the amount of LP tokens that would be burned on withdrawal
     * @return array of token balances that the user will receive
     */
    function calculateRemoveLiquidity(uint256 amount)
        external
        view
        virtual
        returns (uint256[] memory)
    {
        return swapStorage.calculateRemoveLiquidity(amount);
    }

    /**
     * @notice Calculate the amount of underlying token available to withdraw
     * when withdrawing via only single token
     * @param tokenAmount the amount of LP token to burn
     * @param tokenIndex index of which token will be withdrawn
     * @return availableTokenAmount calculated amount of underlying token
     * available to withdraw
     */
    function calculateRemoveLiquidityOneToken(
        uint256 tokenAmount,
        uint8 tokenIndex
    ) external view virtual returns (uint256 availableTokenAmount) {
        return swapStorage.calculateWithdrawOneToken(tokenAmount, tokenIndex);
    }

    /**
     * @notice This function reads the accumulated amount of admin fees of the token with given index
     * @param index Index of the pooled token
     * @return admin's token balance in the token's precision
     */
    function getAdminBalance(uint256 index)
        external
        view
        virtual
        returns (uint256)
    {
        return swapStorage.getAdminBalance(index);
    }

    /*** STATE MODIFYING FUNCTIONS ***/

    /**
     * @notice Swap two tokens using this pool
     * @param tokenIndexFrom the token the user wants to swap from
     * @param tokenIndexTo the token the user wants to swap to
     * @param dx the amount of tokens the user wants to swap from
     * @param minDy the min amount the user would like to receive, or revert.
     * @param deadline latest timestamp to accept this transaction
     */
    function swap(
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx,
        uint256 minDy,
        uint256 deadline
    )
        external
        virtual
        nonReentrant
        whenNotPaused
        deadlineCheck(deadline)
        returns (uint256)
    {
        return swapStorage.swap(tokenIndexFrom, tokenIndexTo, dx, minDy);
    }

    /**
     * @notice Add liquidity to the pool with the given amounts of tokens
     * @param amounts the amounts of each token to add, in their native precision
     * @param minToMint the minimum LP tokens adding this amount of liquidity
     * should mint, otherwise revert. Handy for front-running mitigation
     * @param deadline latest timestamp to accept this transaction
     * @return amount of LP token user minted and received
     */
    function addLiquidity(
        uint256[] calldata amounts,
        uint256 minToMint,
        uint256 deadline
    )
        external
        virtual
        nonReentrant
        whenNotPaused
        deadlineCheck(deadline)
        returns (uint256)
    {
        return swapStorage.addLiquidity(amounts, minToMint);
    }

    /**
     * @notice Burn LP tokens to remove liquidity from the pool. Withdraw fee that decays linearly
     * over period of 4 weeks since last deposit will apply.
     * @dev Liquidity can always be removed, even when the pool is paused.
     * @param amount the amount of LP tokens to burn
     * @param minAmounts the minimum amounts of each token in the pool
     *        acceptable for this burn. Useful as a front-running mitigation
     * @param deadline latest timestamp to accept this transaction
     * @return amounts of tokens user received
     */
    function removeLiquidity(
        uint256 amount,
        uint256[] calldata minAmounts,
        uint256 deadline
    )
        external
        virtual
        nonReentrant
        deadlineCheck(deadline)
        returns (uint256[] memory)
    {
        return swapStorage.removeLiquidity(amount, minAmounts);
    }

    /**
     * @notice Remove liquidity from the pool all in one token. Withdraw fee that decays linearly
     * over period of 4 weeks since last deposit will apply.
     * @param tokenAmount the amount of the token you want to receive
     * @param tokenIndex the index of the token you want to receive
     * @param minAmount the minimum amount to withdraw, otherwise revert
     * @param deadline latest timestamp to accept this transaction
     * @return amount of chosen token user received
     */
    function removeLiquidityOneToken(
        uint256 tokenAmount,
        uint8 tokenIndex,
        uint256 minAmount,
        uint256 deadline
    )
        external
        virtual
        nonReentrant
        whenNotPaused
        deadlineCheck(deadline)
        returns (uint256)
    {
        return
            swapStorage.removeLiquidityOneToken(
                tokenAmount,
                tokenIndex,
                minAmount
            );
    }

    /**
     * @notice Remove liquidity from the pool, weighted differently than the
     * pool's current balances. Withdraw fee that decays linearly
     * over period of 4 weeks since last deposit will apply.
     * @param amounts how much of each token to withdraw
     * @param maxBurnAmount the max LP token provider is willing to pay to
     * remove liquidity. Useful as a front-running mitigation.
     * @param deadline latest timestamp to accept this transaction
     * @return amount of LP tokens burned
     */
    function removeLiquidityImbalance(
        uint256[] calldata amounts,
        uint256 maxBurnAmount,
        uint256 deadline
    )
        external
        virtual
        nonReentrant
        whenNotPaused
        deadlineCheck(deadline)
        returns (uint256)
    {
        return swapStorage.removeLiquidityImbalance(amounts, maxBurnAmount);
    }

    /*** ADMIN FUNCTIONS ***/

    /**
     * @notice Withdraw all admin fees to the contract owner
     */
    function withdrawAdminFees() external onlyOwner {
        swapStorage.withdrawAdminFees(owner());
    }

    /**
     * @notice Update the admin fee. Admin fee takes portion of the swap fee.
     * @param newAdminFee new admin fee to be applied on future transactions
     */
    function setAdminFee(uint256 newAdminFee) external onlyOwner {
        swapStorage.setAdminFee(newAdminFee);
    }

    /**
     * @notice Update the swap fee to be applied on swaps
     * @param newSwapFee new swap fee to be applied on future transactions
     */
    function setSwapFee(uint256 newSwapFee) external onlyOwner {
        swapStorage.setSwapFee(newSwapFee);
    }

    /**
     * @notice Start ramping up or down A parameter towards given futureA and futureTime
     * Checks if the change is too rapid, and commits the new A value only when it falls under
     * the limit range.
     * @param futureA the new A to ramp towards
     * @param futureTime timestamp when the new A should be reached
     */
    function rampA(uint256 futureA, uint256 futureTime) external onlyOwner {
        swapStorage.rampA(futureA, futureTime);
    }

    /**
     * @notice Stop ramping A immediately. Reverts if ramp A is already stopped.
     */
    function stopRampA() external onlyOwner {
        swapStorage.stopRampA();
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;


/**
 * @title IFlashLoanReceiver interface
 * @notice Interface for the Nerve fee IFlashLoanReceiver. Modified from Aave's IFlashLoanReceiver interface.
 * https://github.com/aave/aave-protocol/blob/4b4545fb583fd4f400507b10f3c3114f45b8a037/contracts/flashloan/interfaces/IFlashLoanReceiver.sol
 * @author Aave
 * @dev implement this interface to develop a flashloan-compatible flashLoanReceiver contract
 **/
interface IFlashLoanReceiver {
    function executeOperation(
        address pool,
        address token,
        uint256 amount,
        uint256 fee,
        bytes calldata params
    ) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for
 * deploying minimal proxy contracts, also known as "clones".
 *
 * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
 * > a minimal bytecode implementation that delegates all calls to a known, fixed address.
 *
 * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
 * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
 * deterministic method.
 *
 * _Available since v3.4._
 */
library Clones {
    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `master`.
     *
     * This function uses the create opcode, which should never revert.
     */
    function clone(address master) internal returns (address instance) {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, master))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
            instance := create(0, ptr, 0x37)
        }
        require(instance != address(0), "ERC1167: create failed");
    }

    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `master`.
     *
     * This function uses the create2 opcode and a `salt` to deterministically deploy
     * the clone. Using the same `master` and `salt` multiple time will revert, since
     * the clones cannot be deployed twice at the same address.
     */
    function cloneDeterministic(address master, bytes32 salt) internal returns (address instance) {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, master))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
            instance := create2(0, ptr, 0x37, salt)
        }
        require(instance != address(0), "ERC1167: create2 failed");
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(address master, bytes32 salt, address deployer) internal pure returns (address predicted) {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, master))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000)
            mstore(add(ptr, 0x38), shl(0x60, deployer))
            mstore(add(ptr, 0x4c), salt)
            mstore(add(ptr, 0x6c), keccak256(ptr, 0x37))
            predicted := keccak256(add(ptr, 0x37), 0x55)
        }
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(address master, bytes32 salt) internal view returns (address predicted) {
        return predictDeterministicAddress(master, salt, address(this));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;
import "../proxy/Initializable.sol";

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

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

    uint256 private _status;

    function __ReentrancyGuard_init() internal initializer {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal initializer {
        _status = _NOT_ENTERED;
    }

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

        // Any calls to nonReentrant 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;
    }
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "../OwnableUpgradeable.sol";
import "./PausableUpgradeable.sol";

/**
 * @title OwnerPausable
 * @notice An ownable contract allows the owner to pause and unpause the
 * contract without a delay.
 * @dev Only methods using the provided modifiers will be paused.
 */
abstract contract OwnerPausableUpgradeable is
    OwnableUpgradeable,
    PausableUpgradeable
{
    function __OwnerPausable_init() internal initializer {
        __Context_init_unchained();
        __Ownable_init_unchained();
        __Pausable_init_unchained();
    }

    /**
     * @notice Pause the contract. Revert if already paused.
     */
    function pause() external onlyOwner {
        PausableUpgradeable._pause();
    }

    /**
     * @notice Unpause the contract. Revert if already unpaused.
     */
    function unpause() external onlyOwner {
        PausableUpgradeable._unpause();
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "./libraries/SafeERC20.sol";

import "./AmplificationUtils.sol";
import "./LPToken.sol";
import "./MathUtils.sol";

/**
 * @title SwapUtils library
 * @notice A library to be used within Swap.sol. Contains functions responsible for custody and AMM functionalities.
 * @dev Contracts relying on this library must initialize SwapUtils.Swap struct then use this library
 * for SwapUtils.Swap struct. Note that this library contains both functions called by users and admins.
 * Admin functions should be protected within contracts using this library.
 */
library SwapUtils {
    using SafeERC20 for IERC20;
    using SafeMath for uint256;
    using MathUtils for uint256;

    /*** EVENTS ***/

    event TokenSwap(
        address indexed buyer,
        uint256 tokensSold,
        uint256 tokensBought,
        uint128 soldId,
        uint128 boughtId
    );
    event AddLiquidity(
        address indexed provider,
        uint256[] tokenAmounts,
        uint256[] fees,
        uint256 invariant,
        uint256 lpTokenSupply
    );
    event RemoveLiquidity(
        address indexed provider,
        uint256[] tokenAmounts,
        uint256 lpTokenSupply
    );
    event RemoveLiquidityOne(
        address indexed provider,
        uint256 lpTokenAmount,
        uint256 lpTokenSupply,
        uint256 boughtId,
        uint256 tokensBought
    );
    event RemoveLiquidityImbalance(
        address indexed provider,
        uint256[] tokenAmounts,
        uint256[] fees,
        uint256 invariant,
        uint256 lpTokenSupply
    );
    event NewAdminFee(uint256 newAdminFee);
    event NewSwapFee(uint256 newSwapFee);

    struct Swap {
        // variables around the ramp management of A,
        // the amplification coefficient * n * (n - 1)
        // see https://www.curve.fi/stableswap-paper.pdf for details
        uint256 initialA;
        uint256 futureA;
        uint256 initialATime;
        uint256 futureATime;
        // fee calculation
        uint256 swapFee;
        uint256 adminFee;
        LPToken lpToken;
        // contract references for all tokens being pooled
        IERC20[] pooledTokens;
        // multipliers for each pooled token's precision to get to POOL_PRECISION_DECIMALS
        // for example, TBTC has 18 decimals, so the multiplier should be 1. WBTC
        // has 8, so the multiplier should be 10 ** 18 / 10 ** 8 => 10 ** 10
        uint256[] tokenPrecisionMultipliers;
        // the pool balance of each token, in the token's precision
        // the contract's actual token balance might differ
        uint256[] balances;
    }

    // Struct storing variables used in calculations in the
    // calculateWithdrawOneTokenDY function to avoid stack too deep errors
    struct CalculateWithdrawOneTokenDYInfo {
        uint256 d0;
        uint256 d1;
        uint256 newY;
        uint256 feePerToken;
        uint256 preciseA;
    }

    // Struct storing variables used in calculations in the
    // {add,remove}Liquidity functions to avoid stack too deep errors
    struct ManageLiquidityInfo {
        uint256 d0;
        uint256 d1;
        uint256 d2;
        uint256 preciseA;
        LPToken lpToken;
        uint256 totalSupply;
        uint256[] balances;
        uint256[] multipliers;
    }

    // the precision all pools tokens will be converted to
    uint8 public constant POOL_PRECISION_DECIMALS = 18;

    // the denominator used to calculate admin and LP fees. For example, an
    // LP fee might be something like tradeAmount.mul(fee).div(FEE_DENOMINATOR)
    uint256 private constant FEE_DENOMINATOR = 10**10;

    // Max swap fee is 1% or 100bps of each swap
    uint256 public constant MAX_SWAP_FEE = 10**8;

    // Max adminFee is 100% of the swapFee
    // adminFee does not add additional fee on top of swapFee
    // Instead it takes a certain % of the swapFee. Therefore it has no impact on the
    // users but only on the earnings of LPs
    uint256 public constant MAX_ADMIN_FEE = 10**10;

    // Constant value used as max loop limit
    uint256 private constant MAX_LOOP_LIMIT = 256;

    /*** VIEW & PURE FUNCTIONS ***/

    function _getAPrecise(Swap storage self) internal view returns (uint256) {
        return AmplificationUtils._getAPrecise(self);
    }

    /**
     * @notice Calculate the dy, the amount of selected token that user receives and
     * the fee of withdrawing in one token
     * @param tokenAmount the amount to withdraw in the pool's precision
     * @param tokenIndex which token will be withdrawn
     * @param self Swap struct to read from
     * @return the amount of token user will receive
     */
    function calculateWithdrawOneToken(
        Swap storage self,
        uint256 tokenAmount,
        uint8 tokenIndex
    ) external view returns (uint256) {
        (uint256 availableTokenAmount, ) =
            _calculateWithdrawOneToken(
                self,
                tokenAmount,
                tokenIndex,
                self.lpToken.totalSupply()
            );
        return availableTokenAmount;
    }

    function _calculateWithdrawOneToken(
        Swap storage self,
        uint256 tokenAmount,
        uint8 tokenIndex,
        uint256 totalSupply
    ) internal view returns (uint256, uint256) {
        uint256 dy;
        uint256 newY;
        uint256 currentY;

        (dy, newY, currentY) = calculateWithdrawOneTokenDY(
            self,
            tokenIndex,
            tokenAmount,
            totalSupply
        );

        // dy_0 (without fees)
        // dy, dy_0 - dy

        uint256 dySwapFee =
            currentY
                .sub(newY)
                .div(self.tokenPrecisionMultipliers[tokenIndex])
                .sub(dy);

        return (dy, dySwapFee);
    }

    /**
     * @notice Calculate the dy of withdrawing in one token
     * @param self Swap struct to read from
     * @param tokenIndex which token will be withdrawn
     * @param tokenAmount the amount to withdraw in the pools precision
     * @return the d and the new y after withdrawing one token
     */
    function calculateWithdrawOneTokenDY(
        Swap storage self,
        uint8 tokenIndex,
        uint256 tokenAmount,
        uint256 totalSupply
    )
        internal
        view
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        // Get the current D, then solve the stableswap invariant
        // y_i for D - tokenAmount
        uint256[] memory xp = _xp(self);

        require(tokenIndex < xp.length, "Token index out of range");

        CalculateWithdrawOneTokenDYInfo memory v =
            CalculateWithdrawOneTokenDYInfo(0, 0, 0, 0, 0);
        v.preciseA = _getAPrecise(self);
        v.d0 = getD(xp, v.preciseA);
        v.d1 = v.d0.sub(tokenAmount.mul(v.d0).div(totalSupply));

        require(tokenAmount <= xp[tokenIndex], "Withdraw exceeds available");

        v.newY = getYD(v.preciseA, tokenIndex, xp, v.d1);

        uint256[] memory xpReduced = new uint256[](xp.length);

        v.feePerToken = _feePerToken(self.swapFee, xp.length);
        for (uint256 i = 0; i < xp.length; i++) {
            uint256 xpi = xp[i];
            // if i == tokenIndex, dxExpected = xp[i] * d1 / d0 - newY
            // else dxExpected = xp[i] - (xp[i] * d1 / d0)
            // xpReduced[i] -= dxExpected * fee / FEE_DENOMINATOR
            xpReduced[i] = xpi.sub(
                (
                    (i == tokenIndex)
                        ? xpi.mul(v.d1).div(v.d0).sub(v.newY)
                        : xpi.sub(xpi.mul(v.d1).div(v.d0))
                )
                    .mul(v.feePerToken)
                    .div(FEE_DENOMINATOR)
            );
        }

        uint256 dy =
            xpReduced[tokenIndex].sub(
                getYD(v.preciseA, tokenIndex, xpReduced, v.d1)
            );
        dy = dy.sub(1).div(self.tokenPrecisionMultipliers[tokenIndex]);

        return (dy, v.newY, xp[tokenIndex]);
    }

    /**
     * @notice Calculate the price of a token in the pool with given
     * precision-adjusted balances and a particular D.
     *
     * @dev This is accomplished via solving the invariant iteratively.
     * See the StableSwap paper and Curve.fi implementation for further details.
     *
     * x_1**2 + x1 * (sum' - (A*n**n - 1) * D / (A * n**n)) = D ** (n + 1) / (n ** (2 * n) * prod' * A)
     * x_1**2 + b*x_1 = c
     * x_1 = (x_1**2 + c) / (2*x_1 + b)
     *
     * @param a the amplification coefficient * n * (n - 1). See the StableSwap paper for details.
     * @param tokenIndex Index of token we are calculating for.
     * @param xp a precision-adjusted set of pool balances. Array should be
     * the same cardinality as the pool.
     * @param d the stableswap invariant
     * @return the price of the token, in the same precision as in xp
     */
    function getYD(
        uint256 a,
        uint8 tokenIndex,
        uint256[] memory xp,
        uint256 d
    ) internal pure returns (uint256) {
        uint256 numTokens = xp.length;
        require(tokenIndex < numTokens, "Token not found");

        uint256 c = d;
        uint256 s;
        uint256 nA = a.mul(numTokens);

        for (uint256 i = 0; i < numTokens; i++) {
            if (i != tokenIndex) {
                s = s.add(xp[i]);
                c = c.mul(d).div(xp[i].mul(numTokens));
                // If we were to protect the division loss we would have to keep the denominator separate
                // and divide at the end. However this leads to overflow with large numTokens or/and D.
                // c = c * D * D * D * ... overflow!
            }
        }
        c = c.mul(d).mul(AmplificationUtils.A_PRECISION).div(nA.mul(numTokens));

        uint256 b = s.add(d.mul(AmplificationUtils.A_PRECISION).div(nA));
        uint256 yPrev;
        uint256 y = d;
        for (uint256 i = 0; i < MAX_LOOP_LIMIT; i++) {
            yPrev = y;
            y = y.mul(y).add(c).div(y.mul(2).add(b).sub(d));
            if (y.within1(yPrev)) {
                return y;
            }
        }
        revert("Approximation did not converge");
    }

    /**
     * @notice Get D, the StableSwap invariant, based on a set of balances and a particular A.
     * @param xp a precision-adjusted set of pool balances. Array should be the same cardinality
     * as the pool.
     * @param a the amplification coefficient * n * (n - 1) in A_PRECISION.
     * See the StableSwap paper for details
     * @return the invariant, at the precision of the pool
     */
    function getD(uint256[] memory xp, uint256 a)
        internal
        pure
        returns (uint256)
    {
        uint256 numTokens = xp.length;
        uint256 s;
        for (uint256 i = 0; i < numTokens; i++) {
            s = s.add(xp[i]);
        }
        if (s == 0) {
            return 0;
        }

        uint256 prevD;
        uint256 d = s;
        uint256 nA = a.mul(numTokens);

        for (uint256 i = 0; i < MAX_LOOP_LIMIT; i++) {
            uint256 dP = d;
            for (uint256 j = 0; j < numTokens; j++) {
                dP = dP.mul(d).div(xp[j].mul(numTokens));
                // If we were to protect the division loss we would have to keep the denominator separate
                // and divide at the end. However this leads to overflow with large numTokens or/and D.
                // dP = dP * D * D * D * ... overflow!
            }
            prevD = d;
            d = nA
                .mul(s)
                .div(AmplificationUtils.A_PRECISION)
                .add(dP.mul(numTokens))
                .mul(d)
                .div(
                nA
                    .sub(AmplificationUtils.A_PRECISION)
                    .mul(d)
                    .div(AmplificationUtils.A_PRECISION)
                    .add(numTokens.add(1).mul(dP))
            );
            if (d.within1(prevD)) {
                return d;
            }
        }

        // Convergence should occur in 4 loops or less. If this is reached, there may be something wrong
        // with the pool. If this were to occur repeatedly, LPs should withdraw via `removeLiquidity()`
        // function which does not rely on D.
        revert("D does not converge");
    }

    /**
     * @notice Given a set of balances and precision multipliers, return the
     * precision-adjusted balances.
     *
     * @param balances an array of token balances, in their native precisions.
     * These should generally correspond with pooled tokens.
     *
     * @param precisionMultipliers an array of multipliers, corresponding to
     * the amounts in the balances array. When multiplied together they
     * should yield amounts at the pool's precision.
     *
     * @return an array of amounts "scaled" to the pool's precision
     */
    function _xp(
        uint256[] memory balances,
        uint256[] memory precisionMultipliers
    ) internal pure returns (uint256[] memory) {
        uint256 numTokens = balances.length;
        require(
            numTokens == precisionMultipliers.length,
            "Balances must match multipliers"
        );
        uint256[] memory xp = new uint256[](numTokens);
        for (uint256 i = 0; i < numTokens; i++) {
            xp[i] = balances[i].mul(precisionMultipliers[i]);
        }
        return xp;
    }

    /**3
     * @notice Return the precision-adjusted balances of all tokens in the pool
     * @param self Swap struct to read from
     * @return the pool balances "scaled" to the pool's precision, allowing
     * them to be more easily compared.
     */
    function _xp(Swap storage self) internal view returns (uint256[] memory) {
        return _xp(self.balances, self.tokenPrecisionMultipliers);
    }

    /**
     * @notice Get the virtual price, to help calculate profit
     * @param self Swap struct to read from
     * @return the virtual price, scaled to precision of POOL_PRECISION_DECIMALS
     */
    function getVirtualPrice(Swap storage self)
        external
        view
        returns (uint256)
    {
        uint256 d = getD(_xp(self), _getAPrecise(self));
        LPToken lpToken = self.lpToken;
        uint256 supply = lpToken.totalSupply();
        if (supply > 0) {
            return d.mul(10**uint256(POOL_PRECISION_DECIMALS)).div(supply);
        }
        return 0;
    }

    /**
     * @notice Calculate the new balances of the tokens given the indexes of the token
     * that is swapped from (FROM) and the token that is swapped to (TO).
     * This function is used as a helper function to calculate how much TO token
     * the user should receive on swap.
     *
     * @param preciseA precise form of amplification coefficient
     * @param tokenIndexFrom index of FROM token
     * @param tokenIndexTo index of TO token
     * @param x the new total amount of FROM token
     * @param xp balances of the tokens in the pool
     * @return the amount of TO token that should remain in the pool
     */
    function getY(
        uint256 preciseA,
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 x,
        uint256[] memory xp
    ) internal pure returns (uint256) {
        uint256 numTokens = xp.length;
        require(
            tokenIndexFrom != tokenIndexTo,
            "Can't compare token to itself"
        );
        require(
            tokenIndexFrom < numTokens && tokenIndexTo < numTokens,
            "Tokens must be in pool"
        );

        uint256 d = getD(xp, preciseA);
        uint256 c = d;
        uint256 s;
        uint256 nA = numTokens.mul(preciseA);

        uint256 _x;
        for (uint256 i = 0; i < numTokens; i++) {
            if (i == tokenIndexFrom) {
                _x = x;
            } else if (i != tokenIndexTo) {
                _x = xp[i];
            } else {
                continue;
            }
            s = s.add(_x);
            c = c.mul(d).div(_x.mul(numTokens));
            // If we were to protect the division loss we would have to keep the denominator separate
            // and divide at the end. However this leads to overflow with large numTokens or/and D.
            // c = c * D * D * D * ... overflow!
        }
        c = c.mul(d).mul(AmplificationUtils.A_PRECISION).div(nA.mul(numTokens));
        uint256 b = s.add(d.mul(AmplificationUtils.A_PRECISION).div(nA));
        uint256 yPrev;
        uint256 y = d;

        // iterative approximation
        for (uint256 i = 0; i < MAX_LOOP_LIMIT; i++) {
            yPrev = y;
            y = y.mul(y).add(c).div(y.mul(2).add(b).sub(d));
            if (y.within1(yPrev)) {
                return y;
            }
        }
        revert("Approximation did not converge");
    }

    /**
     * @notice Externally calculates a swap between two tokens.
     * @param self Swap struct to read from
     * @param tokenIndexFrom the token to sell
     * @param tokenIndexTo the token to buy
     * @param dx the number of tokens to sell. If the token charges a fee on transfers,
     * use the amount that gets transferred after the fee.
     * @return dy the number of tokens the user will get
     */
    function calculateSwap(
        Swap storage self,
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx
    ) external view returns (uint256 dy) {
        (dy, ) = _calculateSwap(
            self,
            tokenIndexFrom,
            tokenIndexTo,
            dx,
            self.balances
        );
    }

    /**
     * @notice Internally calculates a swap between two tokens.
     *
     * @dev The caller is expected to transfer the actual amounts (dx and dy)
     * using the token contracts.
     *
     * @param self Swap struct to read from
     * @param tokenIndexFrom the token to sell
     * @param tokenIndexTo the token to buy
     * @param dx the number of tokens to sell. If the token charges a fee on transfers,
     * use the amount that gets transferred after the fee.
     * @return dy the number of tokens the user will get
     * @return dyFee the associated fee
     */
    function _calculateSwap(
        Swap storage self,
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx,
        uint256[] memory balances
    ) internal view returns (uint256 dy, uint256 dyFee) {
        uint256[] memory multipliers = self.tokenPrecisionMultipliers;
        uint256[] memory xp = _xp(balances, multipliers);
        require(
            tokenIndexFrom < xp.length && tokenIndexTo < xp.length,
            "Token index out of range"
        );
        uint256 x = dx.mul(multipliers[tokenIndexFrom]).add(xp[tokenIndexFrom]);
        uint256 y =
            getY(_getAPrecise(self), tokenIndexFrom, tokenIndexTo, x, xp);
        dy = xp[tokenIndexTo].sub(y).sub(1);
        dyFee = dy.mul(self.swapFee).div(FEE_DENOMINATOR);
        dy = dy.sub(dyFee).div(multipliers[tokenIndexTo]);
    }

    /**
     * @notice A simple method to calculate amount of each underlying
     * tokens that is returned upon burning given amount of
     * LP tokens
     *
     * @param amount the amount of LP tokens that would to be burned on
     * withdrawal
     * @return array of amounts of tokens user will receive
     */
    function calculateRemoveLiquidity(Swap storage self, uint256 amount)
        external
        view
        returns (uint256[] memory)
    {
        return
            _calculateRemoveLiquidity(
                self.balances,
                amount,
                self.lpToken.totalSupply()
            );
    }

    function _calculateRemoveLiquidity(
        uint256[] memory balances,
        uint256 amount,
        uint256 totalSupply
    ) internal pure returns (uint256[] memory) {
        require(amount <= totalSupply, "Cannot exceed total supply");

        uint256[] memory amounts = new uint256[](balances.length);

        for (uint256 i = 0; i < balances.length; i++) {
            amounts[i] = balances[i].mul(amount).div(totalSupply);
        }
        return amounts;
    }

    /**
     * @notice A simple method to calculate prices from deposits or
     * withdrawals, excluding fees but including slippage. This is
     * helpful as an input into the various "min" parameters on calls
     * to fight front-running
     *
     * @dev This shouldn't be used outside frontends for user estimates.
     *
     * @param self Swap struct to read from
     * @param amounts an array of token amounts to deposit or withdrawal,
     * corresponding to pooledTokens. The amount should be in each
     * pooled token's native precision. If a token charges a fee on transfers,
     * use the amount that gets transferred after the fee.
     * @param deposit whether this is a deposit or a withdrawal
     * @return if deposit was true, total amount of lp token that will be minted and if
     * deposit was false, total amount of lp token that will be burned
     */
    function calculateTokenAmount(
        Swap storage self,
        uint256[] calldata amounts,
        bool deposit
    ) external view returns (uint256) {
        uint256 a = _getAPrecise(self);
        uint256[] memory balances = self.balances;
        uint256[] memory multipliers = self.tokenPrecisionMultipliers;

        uint256 d0 = getD(_xp(balances, multipliers), a);
        for (uint256 i = 0; i < balances.length; i++) {
            if (deposit) {
                balances[i] = balances[i].add(amounts[i]);
            } else {
                balances[i] = balances[i].sub(
                    amounts[i],
                    "Cannot withdraw more than available"
                );
            }
        }
        
        uint256 d1 = getD(_xp(balances, multipliers), a);
        uint256 totalSupply = self.lpToken.totalSupply();

        if (totalSupply == 0) {
            return d1; // first depositor take it all
        }

        if (deposit) {
            return d1.sub(d0).mul(totalSupply).div(d0);
        } else {
            return d0.sub(d1).mul(totalSupply).div(d0);
        }
    }

    /**
     * @notice return accumulated amount of admin fees of the token with given index
     * @param self Swap struct to read from
     * @param index Index of the pooled token
     * @return admin balance in the token's precision
     */
    function getAdminBalance(Swap storage self, uint256 index)
        external
        view
        returns (uint256)
    {
        require(index < self.pooledTokens.length, "Token index out of range");
        return
            self.pooledTokens[index].balanceOf(address(this)).sub(
                self.balances[index]
            );
    }

    /**
     * @notice internal helper function to calculate fee per token multiplier used in
     * swap fee calculations
     * @param swapFee swap fee for the tokens
     * @param numTokens number of tokens pooled
     */
    function _feePerToken(uint256 swapFee, uint256 numTokens)
        internal
        pure
        returns (uint256)
    {
        return swapFee.mul(numTokens).div(numTokens.sub(1).mul(4));
    }

    /*** STATE MODIFYING FUNCTIONS ***/

    /**
     * @notice swap two tokens in the pool
     * @param self Swap struct to read from and write to
     * @param tokenIndexFrom the token the user wants to sell
     * @param tokenIndexTo the token the user wants to buy
     * @param dx the amount of tokens the user wants to sell
     * @param minDy the min amount the user would like to receive, or revert.
     * @return amount of token user received on swap
     */
    function swap(
        Swap storage self,
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx,
        uint256 minDy
    ) external returns (uint256) {
        {
            IERC20 tokenFrom = self.pooledTokens[tokenIndexFrom];
            require(
                dx <= tokenFrom.balanceOf(msg.sender),
                "Cannot swap more than you own"
            );
            // Transfer tokens first to see if a fee was charged on transfer
            uint256 beforeBalance = tokenFrom.balanceOf(address(this));
            tokenFrom.safeTransferFrom(msg.sender, address(this), dx);

            // Use the actual transferred amount for AMM math
            dx = tokenFrom.balanceOf(address(this)).sub(beforeBalance);
        }

        uint256 dy;
        uint256 dyFee;
        uint256[] memory balances = self.balances;
        (dy, dyFee) = _calculateSwap(
            self,
            tokenIndexFrom,
            tokenIndexTo,
            dx,
            balances
        );
        require(dy >= minDy, "Swap didn't result in min tokens");

        uint256 dyAdminFee =
            dyFee.mul(self.adminFee).div(FEE_DENOMINATOR).div(
                self.tokenPrecisionMultipliers[tokenIndexTo]
            );

        self.balances[tokenIndexFrom] = balances[tokenIndexFrom].add(dx);
        self.balances[tokenIndexTo] = balances[tokenIndexTo].sub(dy).sub(
            dyAdminFee
        );

        self.pooledTokens[tokenIndexTo].safeTransfer(msg.sender, dy);

        emit TokenSwap(msg.sender, dx, dy, tokenIndexFrom, tokenIndexTo);

        return dy;
    }

    /**
     * @notice Add liquidity to the pool
     * @param self Swap struct to read from and write to
     * @param amounts the amounts of each token to add, in their native precision
     * @param minToMint the minimum LP tokens adding this amount of liquidity
     * should mint, otherwise revert. Handy for front-running mitigation
     * allowed addresses. If the pool is not in the guarded launch phase, this parameter will be ignored.
     * @return amount of LP token user received
     */
    function addLiquidity(
        Swap storage self,
        uint256[] memory amounts,
        uint256 minToMint
    ) external returns (uint256) {
        IERC20[] memory pooledTokens = self.pooledTokens;
        require(
            amounts.length == pooledTokens.length,
            "Amounts must match pooled tokens"
        );

        // current state
        ManageLiquidityInfo memory v =
            ManageLiquidityInfo(
                0,
                0,
                0,
                _getAPrecise(self),
                self.lpToken,
                0,
                self.balances,
                self.tokenPrecisionMultipliers
            );
        v.totalSupply = v.lpToken.totalSupply();

        if (v.totalSupply != 0) {
            v.d0 = getD(_xp(v.balances, v.multipliers), v.preciseA);
        }

        uint256[] memory newBalances = new uint256[](pooledTokens.length);

        for (uint256 i = 0; i < pooledTokens.length; i++) {
            require(
                v.totalSupply != 0 || amounts[i] > 0,
                "Must supply all tokens in pool"
            );

            // Transfer tokens first to see if a fee was charged on transfer
            if (amounts[i] != 0) {
                uint256 beforeBalance =
                    pooledTokens[i].balanceOf(address(this));
                pooledTokens[i].safeTransferFrom(
                    msg.sender,
                    address(this),
                    amounts[i]
                );

                // Update the amounts[] with actual transfer amount
                amounts[i] = pooledTokens[i].balanceOf(address(this)).sub(
                    beforeBalance
                );
            }

            newBalances[i] = v.balances[i].add(amounts[i]);
        }

        // invariant after change
        v.d1 = getD(_xp(newBalances, v.multipliers), v.preciseA);
        require(v.d1 > v.d0, "D should increase");

        // updated to reflect fees and calculate the user's LP tokens
        v.d2 = v.d1;
        uint256[] memory fees = new uint256[](pooledTokens.length);

        if (v.totalSupply != 0) {
            uint256 feePerToken =
                _feePerToken(self.swapFee, pooledTokens.length);
            for (uint256 i = 0; i < pooledTokens.length; i++) {
                uint256 idealBalance = v.d1.mul(v.balances[i]).div(v.d0);
                fees[i] = feePerToken
                    .mul(idealBalance.difference(newBalances[i]))
                    .div(FEE_DENOMINATOR);
                self.balances[i] = newBalances[i].sub(
                    fees[i].mul(self.adminFee).div(FEE_DENOMINATOR)
                );
                newBalances[i] = newBalances[i].sub(fees[i]);
            }
            v.d2 = getD(_xp(newBalances, v.multipliers), v.preciseA);
        } else {
            // the initial depositor doesn't pay fees
            self.balances = newBalances;
        }

        uint256 toMint;
        if (v.totalSupply == 0) {
            toMint = v.d1;
        } else {
            toMint = v.d2.sub(v.d0).mul(v.totalSupply).div(v.d0);
        }

        require(toMint >= minToMint, "Couldn't mint min requested");

        // mint the user's LP tokens
        v.lpToken.mint(msg.sender, toMint);

        emit AddLiquidity(
            msg.sender,
            amounts,
            fees,
            v.d1,
            v.totalSupply.add(toMint)
        );

        return toMint;
    }

    /**
     * @notice Burn LP tokens to remove liquidity from the pool.
     * @dev Liquidity can always be removed, even when the pool is paused.
     * @param self Swap struct to read from and write to
     * @param amount the amount of LP tokens to burn
     * @param minAmounts the minimum amounts of each token in the pool
     * acceptable for this burn. Useful as a front-running mitigation
     * @return amounts of tokens the user received
     */
    function removeLiquidity(
        Swap storage self,
        uint256 amount,
        uint256[] calldata minAmounts
    ) external returns (uint256[] memory) {
        LPToken lpToken = self.lpToken;
        IERC20[] memory pooledTokens = self.pooledTokens;
        require(amount <= lpToken.balanceOf(msg.sender), ">LP.balanceOf");
        require(
            minAmounts.length == pooledTokens.length,
            "minAmounts must match poolTokens"
        );

        uint256[] memory balances = self.balances;
        uint256 totalSupply = lpToken.totalSupply();

        uint256[] memory amounts =
            _calculateRemoveLiquidity(balances, amount, totalSupply);

        for (uint256 i = 0; i < amounts.length; i++) {
            require(amounts[i] >= minAmounts[i], "amounts[i] < minAmounts[i]");
            self.balances[i] = balances[i].sub(amounts[i]);
            pooledTokens[i].safeTransfer(msg.sender, amounts[i]);
        }

        lpToken.burnFrom(msg.sender, amount);

        emit RemoveLiquidity(msg.sender, amounts, totalSupply.sub(amount));

        return amounts;
    }

    /**
     * @notice Remove liquidity from the pool all in one token.
     * @param self Swap struct to read from and write to
     * @param tokenAmount the amount of the lp tokens to burn
     * @param tokenIndex the index of the token you want to receive
     * @param minAmount the minimum amount to withdraw, otherwise revert
     * @return amount chosen token that user received
     */
    function removeLiquidityOneToken(
        Swap storage self,
        uint256 tokenAmount,
        uint8 tokenIndex,
        uint256 minAmount
    ) external returns (uint256) {
        LPToken lpToken = self.lpToken;
        IERC20[] memory pooledTokens = self.pooledTokens;

        require(tokenAmount <= lpToken.balanceOf(msg.sender), ">LP.balanceOf");
        require(tokenIndex < pooledTokens.length, "Token not found");

        uint256 totalSupply = lpToken.totalSupply();

        (uint256 dy, uint256 dyFee) =
            _calculateWithdrawOneToken(
                self,
                tokenAmount,
                tokenIndex,
                totalSupply
            );

        require(dy >= minAmount, "dy < minAmount");

        self.balances[tokenIndex] = self.balances[tokenIndex].sub(
            dy.add(dyFee.mul(self.adminFee).div(FEE_DENOMINATOR))
        );
        lpToken.burnFrom(msg.sender, tokenAmount);
        pooledTokens[tokenIndex].safeTransfer(msg.sender, dy);

        emit RemoveLiquidityOne(
            msg.sender,
            tokenAmount,
            totalSupply,
            tokenIndex,
            dy
        );

        return dy;
    }

    /**
     * @notice Remove liquidity from the pool, weighted differently than the
     * pool's current balances.
     *
     * @param self Swap struct to read from and write to
     * @param amounts how much of each token to withdraw
     * @param maxBurnAmount the max LP token provider is willing to pay to
     * remove liquidity. Useful as a front-running mitigation.
     * @return actual amount of LP tokens burned in the withdrawal
     */
    function removeLiquidityImbalance(
        Swap storage self,
        uint256[] memory amounts,
        uint256 maxBurnAmount
    ) public returns (uint256) {
        ManageLiquidityInfo memory v =
            ManageLiquidityInfo(
                0,
                0,
                0,
                _getAPrecise(self),
                self.lpToken,
                0,
                self.balances,
                self.tokenPrecisionMultipliers
            );
        v.totalSupply = v.lpToken.totalSupply();

        IERC20[] memory pooledTokens = self.pooledTokens;

        require(
            amounts.length == pooledTokens.length,
            "Amounts should match pool tokens"
        );

        require(
            maxBurnAmount <= v.lpToken.balanceOf(msg.sender) &&
                maxBurnAmount != 0,
            ">LP.balanceOf"
        );

        uint256 feePerToken = _feePerToken(self.swapFee, pooledTokens.length);
        uint256[] memory fees = new uint256[](pooledTokens.length);
        {
            uint256[] memory balances1 = new uint256[](pooledTokens.length);
            v.d0 = getD(_xp(v.balances, v.multipliers), v.preciseA);
            for (uint256 i = 0; i < pooledTokens.length; i++) {
                balances1[i] = v.balances[i].sub(
                    amounts[i],
                    "Cannot withdraw more than available"
                );
            }
            v.d1 = getD(_xp(balances1, v.multipliers), v.preciseA);

            for (uint256 i = 0; i < pooledTokens.length; i++) {
                uint256 idealBalance = v.d1.mul(v.balances[i]).div(v.d0);
                uint256 difference = idealBalance.difference(balances1[i]);
                fees[i] = feePerToken.mul(difference).div(FEE_DENOMINATOR);
                self.balances[i] = balances1[i].sub(
                    fees[i].mul(self.adminFee).div(FEE_DENOMINATOR)
                );
                balances1[i] = balances1[i].sub(fees[i]);
            }

            v.d2 = getD(_xp(balances1, v.multipliers), v.preciseA);
        }
        uint256 tokenAmount = v.d0.sub(v.d2).mul(v.totalSupply).div(v.d0);
        require(tokenAmount != 0, "Burnt amount cannot be zero");
        tokenAmount = tokenAmount.add(1);

        require(tokenAmount <= maxBurnAmount, "tokenAmount > maxBurnAmount");

        v.lpToken.burnFrom(msg.sender, tokenAmount);

        for (uint256 i = 0; i < pooledTokens.length; i++) {
            pooledTokens[i].safeTransfer(msg.sender, amounts[i]);
        }

        emit RemoveLiquidityImbalance(
            msg.sender,
            amounts,
            fees,
            v.d1,
            v.totalSupply.sub(tokenAmount)
        );

        return tokenAmount;
    }

    /**
     * @notice withdraw all admin fees to a given address
     * @param self Swap struct to withdraw fees from
     * @param to Address to send the fees to
     */
    function withdrawAdminFees(Swap storage self, address to) external {
        IERC20[] memory pooledTokens = self.pooledTokens;
        for (uint256 i = 0; i < pooledTokens.length; i++) {
            IERC20 token = pooledTokens[i];
            uint256 balance =
                token.balanceOf(address(this)).sub(self.balances[i]);
            if (balance != 0) {
                token.safeTransfer(to, balance);
            }
        }
    }

    /**
     * @notice Sets the admin fee
     * @dev adminFee cannot be higher than 100% of the swap fee
     * @param self Swap struct to update
     * @param newAdminFee new admin fee to be applied on future transactions
     */
    function setAdminFee(Swap storage self, uint256 newAdminFee) external {
        require(newAdminFee <= MAX_ADMIN_FEE, "Fee is too high");
        self.adminFee = newAdminFee;

        emit NewAdminFee(newAdminFee);
    }

    /**
     * @notice update the swap fee
     * @dev fee cannot be higher than 1% of each swap
     * @param self Swap struct to update
     * @param newSwapFee new swap fee to be applied on future transactions
     */
    function setSwapFee(Swap storage self, uint256 newSwapFee) external {
        require(newSwapFee <= MAX_SWAP_FEE, "Fee is too high");
        self.swapFee = newSwapFee;

        emit NewSwapFee(newSwapFee);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

import "./libraries/SafeERC20.sol";


import "./SwapUtils.sol";

/**
 * @title AmplificationUtils library
 * @notice A library to calculate and ramp the A parameter of a given `SwapUtils.Swap` struct.
 * This library assumes the struct is fully validated.
 */
library AmplificationUtils {
    using SafeMath for uint256;

    event RampA(
        uint256 oldA,
        uint256 newA,
        uint256 initialTime,
        uint256 futureTime
    );
    event StopRampA(uint256 currentA, uint256 time);

    // Constant values used in ramping A calculations
    uint256 public constant A_PRECISION = 100;
    uint256 public constant MAX_A = 10**6;
    uint256 private constant MAX_A_CHANGE = 2;
    uint256 private constant MIN_RAMP_TIME = 7 days;

    /**
     * @notice Return A, the amplification coefficient * n * (n - 1)
     * @dev See the StableSwap paper for details
     * @param self Swap struct to read from
     * @return A parameter
     */
    function getA(SwapUtils.Swap storage self) external view returns (uint256) {
        return _getAPrecise(self).div(A_PRECISION);
    }

    /**
     * @notice Return A in its raw precision
     * @dev See the StableSwap paper for details
     * @param self Swap struct to read from
     * @return A parameter in its raw precision form
     */
    function getAPrecise(SwapUtils.Swap storage self)
        external
        view
        returns (uint256)
    {
        return _getAPrecise(self);
    }

    /**
     * @notice Return A in its raw precision
     * @dev See the StableSwap paper for details
     * @param self Swap struct to read from
     * @return A parameter in its raw precision form
     */
    function _getAPrecise(SwapUtils.Swap storage self)
        internal
        view
        returns (uint256)
    {
        uint256 t1 = self.futureATime; // time when ramp is finished
        uint256 a1 = self.futureA; // final A value when ramp is finished

        if (block.timestamp < t1) {
            uint256 t0 = self.initialATime; // time when ramp is started
            uint256 a0 = self.initialA; // initial A value when ramp is started
            if (a1 > a0) {
                // a0 + (a1 - a0) * (block.timestamp - t0) / (t1 - t0)
                return
                    a0.add(
                        a1.sub(a0).mul(block.timestamp.sub(t0)).div(t1.sub(t0))
                    );
            } else {
                // a0 - (a0 - a1) * (block.timestamp - t0) / (t1 - t0)
                return
                    a0.sub(
                        a0.sub(a1).mul(block.timestamp.sub(t0)).div(t1.sub(t0))
                    );
            }
        } else {
            return a1;
        }
    }

    /**
     * @notice Start ramping up or down A parameter towards given futureA_ and futureTime_
     * Checks if the change is too rapid, and commits the new A value only when it falls under
     * the limit range.
     * @param self Swap struct to update
     * @param futureA_ the new A to ramp towards
     * @param futureTime_ timestamp when the new A should be reached
     */
    function rampA(
        SwapUtils.Swap storage self,
        uint256 futureA_,
        uint256 futureTime_
    ) external {
        require(
            block.timestamp >= self.initialATime.add(1 days),
            "Wait 1 day before starting ramp"
        );
        require(
            futureTime_ >= block.timestamp.add(MIN_RAMP_TIME),
            "Insufficient ramp time"
        );
        require(
            futureA_ > 0 && futureA_ < MAX_A,
            "futureA_ must be > 0 and < MAX_A"
        );

        uint256 initialAPrecise = _getAPrecise(self);
        uint256 futureAPrecise = futureA_.mul(A_PRECISION);

        if (futureAPrecise < initialAPrecise) {
            require(
                futureAPrecise.mul(MAX_A_CHANGE) >= initialAPrecise,
                "futureA_ is too small"
            );
        } else {
            require(
                futureAPrecise <= initialAPrecise.mul(MAX_A_CHANGE),
                "futureA_ is too large"
            );
        }

        self.initialA = initialAPrecise;
        self.futureA = futureAPrecise;
        self.initialATime = block.timestamp;
        self.futureATime = futureTime_;

        emit RampA(
            initialAPrecise,
            futureAPrecise,
            block.timestamp,
            futureTime_
        );
    }

    /**
     * @notice Stops ramping A immediately. Once this function is called, rampA()
     * cannot be called for another 24 hours
     * @param self Swap struct to update
     */
    function stopRampA(SwapUtils.Swap storage self) external {
        require(self.futureATime > block.timestamp, "Ramp is already stopped");

        uint256 currentA = _getAPrecise(self);
        self.initialA = currentA;
        self.futureA = currentA;
        self.initialATime = block.timestamp;
        self.futureATime = block.timestamp;

        emit StopRampA(currentA, block.timestamp);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

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

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

// solhint-disable-next-line compiler-version
pragma solidity >=0.4.24 <0.8.0;

import "../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 */
abstract contract Initializable {

    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(_initializing || _isConstructor() || !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }

    /// @dev Returns true if and only if the function is running in the constructor
    function _isConstructor() private view returns (bool) {
        return !AddressUpgradeable.isContract(address(this));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./libraries/ContextUpgradeable.sol";
import "./proxy/Initializable.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal initializer {
        __Context_init_unchained();
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal initializer {
        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;
    }
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./ContextUpgradeable.sol";
import "../proxy/Initializable.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal initializer {
        __Context_init_unchained();
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal initializer {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;
import "../proxy/Initializable.sol";

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal initializer {
        __Context_init_unchained();
    }

    function __Context_init_unchained() internal initializer {
    }
    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;
    }
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

import "./libraries/ERC20BurnableUpgradeable.sol";
import "./OwnableUpgradeable.sol";
import "./libraries/SafeMathUpgradeable.sol";
import "./libraries/ERC20PermitUpgradeable.sol";
import "./interfaces/ISwap.sol";

/**
 * @title Liquidity Provider Token
 * @notice This token is an ERC20 detailed token with added capability to be minted by the owner.
 * It is used to represent user's shares when providing liquidity to swap contracts.
 * @dev Only Swap contracts should initialize and own LPToken contracts.
 */
contract LPToken is ERC20PermitUpgradeable, ERC20BurnableUpgradeable, OwnableUpgradeable {
    using SafeMathUpgradeable for uint256;

    /**
     * @notice Initializes this LPToken contract with the given name and symbol
     * @dev The caller of this function will become the owner. A Swap contract should call this
     * in its initializer function.
     * @param name name of this token
     * @param symbol symbol of this token
     */
    function initialize(string memory name, string memory symbol)
        external
        initializer
        returns (bool)
    {
        __Context_init_unchained();
        __ERC20_init_unchained(name, symbol);
        __ERC20Permit_init(name);
        __Ownable_init_unchained();
        return true;
    }

    /**
     * @notice Mints the given amount of LPToken to the recipient.
     * @dev only owner can call this mint function
     * @param recipient address of account to receive the tokens
     * @param amount amount of tokens to mint
     */
    function mint(address recipient, uint256 amount) external onlyOwner {
        require(amount != 0, "LPToken: cannot mint 0");
        _mint(recipient, amount);
    }

    /**
     * @dev Overrides ERC20._beforeTokenTransfer() which get called on every transfers including
     * minting and burning. * This assumes the owner is set to a Swap contract's address.
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual override(ERC20Upgradeable) {
        super._beforeTokenTransfer(from, to, amount);
        require(to != address(this), "LPToken: cannot send to itself");
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import "./libraries/SafeMath.sol";



/**
 * @title MathUtils library
 * @notice A library to be used in conjunction with SafeMath. Contains functions for calculating
 * differences between two uint256.
 */
library MathUtils {
    /**
     * @notice Compares a and b and returns true if the difference between a and b
     *         is less than 1 or equal to each other.
     * @param a uint256 to compare with
     * @param b uint256 to compare with
     * @return True if the difference between a and b is less than 1 or equal,
     *         otherwise return false
     */
    function within1(uint256 a, uint256 b) internal pure returns (bool) {
        return (difference(a, b) <= 1);
    }

    /**
     * @notice Calculates absolute difference between a and b
     * @param a uint256 to compare with
     * @param b uint256 to compare with
     * @return Difference between a and b
     */
    function difference(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a > b) {
            return a - b;
        }
        return b - a;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./ContextUpgradeable.sol";
import "./ERC20Upgradeable.sol";
import "../proxy/Initializable.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20BurnableUpgradeable is Initializable, ContextUpgradeable, ERC20Upgradeable {
    function __ERC20Burnable_init() internal initializer {
        __Context_init_unchained();
        __ERC20Burnable_init_unchained();
    }

    function __ERC20Burnable_init_unchained() internal initializer {
    }
    using SafeMathUpgradeable for uint256;

    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        uint256 decreasedAllowance = allowance(account, _msgSender()).sub(amount, "ERC20: burn amount exceeds allowance");

        _approve(account, _msgSender(), decreasedAllowance);
        _burn(account, amount);
    }
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.5 <0.8.0;

import "./ERC20Upgradeable.sol";
import "../interfaces/IERC20PermitUpgradeable.sol";
import "./ECDSAUpgradeable.sol";
import "./CountersUpgradeable.sol";
import "./EIP712Upgradeable.sol";
import "../proxy/Initializable.sol";

/**
 * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * _Available since v3.4._
 */
abstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20PermitUpgradeable, EIP712Upgradeable {
    using CountersUpgradeable for CountersUpgradeable.Counter;

    mapping (address => CountersUpgradeable.Counter) private _nonces;

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private _PERMIT_TYPEHASH;

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    function __ERC20Permit_init(string memory name) internal initializer {
        __Context_init_unchained();
        __EIP712_init_unchained(name, "1");
        __ERC20Permit_init_unchained(name);
    }

    function __ERC20Permit_init_unchained(string memory name) internal initializer {
        _PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    }

    /**
     * @dev See {IERC20Permit-permit}.
     */
    function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public virtual override {
        // solhint-disable-next-line not-rely-on-time
        require(block.timestamp <= deadline, "ERC20Permit: expired deadline");

        bytes32 structHash = keccak256(
            abi.encode(
                _PERMIT_TYPEHASH,
                owner,
                spender,
                value,
                _nonces[owner].current(),
                deadline
            )
        );

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSAUpgradeable.recover(hash, v, r, s);
        require(signer == owner, "ERC20Permit: invalid signature");

        _nonces[owner].increment();
        _approve(owner, spender, value);
    }

    /**
     * @dev See {IERC20Permit-nonces}.
     */
    function nonces(address owner) public view override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view override returns (bytes32) {
        return _domainSeparatorV4();
    }
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
pragma solidity  >=0.6.0 <0.8.0;


import "../libraries/SafeERC20.sol";

interface ISwap {
    // pool data view functions
    function getA() external view returns (uint256);

    function getToken(uint8 index) external view returns (IERC20);

    function getTokenIndex(address tokenAddress) external view returns (uint8);

    function getTokenBalance(uint8 index) external view returns (uint256);

    function getVirtualPrice() external view returns (uint256);

    function getNumberOfTokens() external view returns (uint256);

    function getLpToken() external view returns (IERC20);

    // min return calculation functions
    function calculateSwap(
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx
    ) external view returns (uint256);

    function calculateTokenAmount(uint256[] calldata amounts, bool deposit)
        external
        view
        returns (uint256);

    function calculateRemoveLiquidity(uint256 amount)
        external
        view
        returns (uint256[] memory);

    function calculateRemoveLiquidityOneToken(
        uint256 tokenAmount,
        uint8 tokenIndex
    ) external view returns (uint256 availableTokenAmount);

    // state modifying functions
    function initialize(
        IERC20[] memory pooledTokens,
        uint8[] memory decimals,
        string memory lpTokenName,
        string memory lpTokenSymbol,
        uint256 a,
        uint256 fee,
        uint256 adminFee,
        address lpTokenTargetAddress
    ) external;

    function swap(
        uint8 tokenIndexFrom,
        uint8 tokenIndexTo,
        uint256 dx,
        uint256 minDy,
        uint256 deadline
    ) external returns (uint256);

    function addLiquidity(
        uint256[] calldata amounts,
        uint256 minToMint,
        uint256 deadline
    ) external returns (uint256);

    function removeLiquidity(
        uint256 amount,
        uint256[] calldata minAmounts,
        uint256 deadline
    ) external returns (uint256[] memory);

    function removeLiquidityOneToken(
        uint256 tokenAmount,
        uint8 tokenIndex,
        uint256 minAmount,
        uint256 deadline
    ) external returns (uint256);

    function removeLiquidityImbalance(
        uint256[] calldata amounts,
        uint256 maxBurnAmount,
        uint256 deadline
    ) external returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./ContextUpgradeable.sol";
import "../interfaces/IERC20Upgradeable.sol";
import "./SafeMathUpgradeable.sol";
import "../proxy/Initializable.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable {
    using SafeMathUpgradeable for uint256;

    mapping (address => uint256) private _balances;

    mapping (address => mapping (address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal initializer {
        __Context_init_unchained();
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal initializer {
        _name = name_;
        _symbol = symbol_;
        _decimals = 18;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual 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() public view virtual returns (uint8) {
        return _decimals;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Sets {decimals} to a value other than the default one of 18.
     *
     * WARNING: This function should only be called from the constructor. Most
     * applications that interact with token contracts will not expect
     * {decimals} to ever change, and may work incorrectly if it does.
     */
    function _setupDecimals(uint8 decimals_) internal virtual {
        _decimals = decimals_;
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
    uint256[44] private __gap;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20PermitUpgradeable {
    /**
     * @dev Sets `value` as the allowance of `spender` over `owner`'s tokens,
     * given `owner`'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for `permit`, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSAUpgradeable {
    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        // Check the signature length
        if (signature.length != 65) {
            revert("ECDSA: invalid signature length");
        }

        // Divide the signature in r, s and v variables
        bytes32 r;
        bytes32 s;
        uint8 v;

        // ecrecover takes the signature parameters, and the only way to get them
        // currently is to use assembly.
        // solhint-disable-next-line no-inline-assembly
        assembly {
            r := mload(add(signature, 0x20))
            s := mload(add(signature, 0x40))
            v := byte(0, mload(add(signature, 0x60)))
        }

        return recover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover-bytes32-bytes-} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, "ECDSA: invalid signature 's' value");
        require(v == 27 || v == 28, "ECDSA: invalid signature 'v' value");

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        require(signer != address(0), "ECDSA: invalid signature");

        return signer;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * replicates the behavior of the
     * https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign[`eth_sign`]
     * JSON-RPC method.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "./SafeMathUpgradeable.sol";

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the {SafeMath}
 * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never
 * directly accessed.
 */
library CountersUpgradeable {
    using SafeMathUpgradeable for uint256;

    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        // The {SafeMath} overflow check can be skipped here, see the comment at the top
        counter._value += 1;
    }

    function decrement(Counter storage counter) internal {
        counter._value = counter._value.sub(1);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;
import "../proxy/Initializable.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * _Available since v3.4._
 */
abstract contract EIP712Upgradeable is Initializable {
    /* solhint-disable var-name-mixedcase */
    bytes32 private _HASHED_NAME;
    bytes32 private _HASHED_VERSION;
    bytes32 private constant _TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");
    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    function __EIP712_init(string memory name, string memory version) internal initializer {
        __EIP712_init_unchained(name, version);
    }

    function __EIP712_init_unchained(string memory name, string memory version) internal initializer {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash());
    }

    function _buildDomainSeparator(bytes32 typeHash, bytes32 name, bytes32 version) private view returns (bytes32) {
        return keccak256(
            abi.encode(
                typeHash,
                name,
                version,
                _getChainId(),
                address(this)
            )
        );
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", _domainSeparatorV4(), structHash));
    }

    function _getChainId() private view returns (uint256 chainId) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        // solhint-disable-next-line no-inline-assembly
        assembly {
            chainId := chainid()
        }
    }

    /**
     * @dev The hash of the name parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712NameHash() internal virtual view returns (bytes32) {
        return _HASHED_NAME;
    }

    /**
     * @dev The hash of the version parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712VersionHash() internal virtual view returns (bytes32) {
        return _HASHED_VERSION;
    }
    uint256[50] private __gap;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {
    "contracts/stable-amm/AmplificationUtils.sol": {
      "AmplificationUtils": "0x431f4d6ba1e22f35c7bc200f7863c9f164585886"
    },
    "contracts/stable-amm/SwapUtils.sol": {
      "SwapUtils": "0xd72bd8fa5ef9ecc0a7255ebc7f5e96a30d763f93"
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenAmounts","type":"uint256[]"},{"indexed":false,"internalType":"uint256[]","name":"fees","type":"uint256[]"},{"indexed":false,"internalType":"uint256","name":"invariant","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lpTokenSupply","type":"uint256"}],"name":"AddLiquidity","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint8","name":"tokenIndex","type":"uint8"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountFee","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"protocolFee","type":"uint256"}],"name":"FlashLoan","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newAdminFee","type":"uint256"}],"name":"NewAdminFee","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newSwapFee","type":"uint256"}],"name":"NewSwapFee","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"oldA","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newA","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"initialTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"futureTime","type":"uint256"}],"name":"RampA","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenAmounts","type":"uint256[]"},{"indexed":false,"internalType":"uint256","name":"lpTokenSupply","type":"uint256"}],"name":"RemoveLiquidity","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"tokenAmounts","type":"uint256[]"},{"indexed":false,"internalType":"uint256[]","name":"fees","type":"uint256[]"},{"indexed":false,"internalType":"uint256","name":"invariant","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lpTokenSupply","type":"uint256"}],"name":"RemoveLiquidityImbalance","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"provider","type":"address"},{"indexed":false,"internalType":"uint256","name":"lpTokenAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lpTokenSupply","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"boughtId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"tokensBought","type":"uint256"}],"name":"RemoveLiquidityOne","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"currentA","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"StopRampA","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"buyer","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokensSold","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"tokensBought","type":"uint256"},{"indexed":false,"internalType":"uint128","name":"soldId","type":"uint128"},{"indexed":false,"internalType":"uint128","name":"boughtId","type":"uint128"}],"name":"TokenSwap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"MAX_BPS","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"uint256","name":"minToMint","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidity","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"calculateRemoveLiquidity","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenAmount","type":"uint256"},{"internalType":"uint8","name":"tokenIndex","type":"uint8"}],"name":"calculateRemoveLiquidityOneToken","outputs":[{"internalType":"uint256","name":"availableTokenAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"tokenIndexFrom","type":"uint8"},{"internalType":"uint8","name":"tokenIndexTo","type":"uint8"},{"internalType":"uint256","name":"dx","type":"uint256"}],"name":"calculateSwap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"bool","name":"deposit","type":"bool"}],"name":"calculateTokenAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"params","type":"bytes"}],"name":"flashLoan","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"flashLoanFeeBPS","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getA","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAPrecise","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getAdminBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAdminBalances","outputs":[{"internalType":"uint256[]","name":"adminBalances","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getLpToken","outputs":[{"internalType":"contract LPToken","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getNumberOfTokens","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"index","type":"uint8"}],"name":"getToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"index","type":"uint8"}],"name":"getTokenBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTokenBalances","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"}],"name":"getTokenIndex","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTokenPrecisionMultipliers","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTokens","outputs":[{"internalType":"contract IERC20[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getVirtualPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20[]","name":"_pooledTokens","type":"address[]"},{"internalType":"uint8[]","name":"decimals","type":"uint8[]"},{"internalType":"string","name":"lpTokenName","type":"string"},{"internalType":"string","name":"lpTokenSymbol","type":"string"},{"internalType":"uint256","name":"_a","type":"uint256"},{"internalType":"uint256","name":"_fee","type":"uint256"},{"internalType":"uint256","name":"_adminFee","type":"uint256"},{"internalType":"address","name":"lpTokenTargetAddress","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isFlashLoanEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"protocolFeeShareBPS","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"futureA","type":"uint256"},{"internalType":"uint256","name":"futureTime","type":"uint256"}],"name":"rampA","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint256[]","name":"minAmounts","type":"uint256[]"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidity","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"uint256","name":"maxBurnAmount","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidityImbalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenAmount","type":"uint256"},{"internalType":"uint8","name":"tokenIndex","type":"uint8"},{"internalType":"uint256","name":"minAmount","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"removeLiquidityOneToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newAdminFee","type":"uint256"}],"name":"setAdminFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newFlashLoanFeeBPS","type":"uint256"},{"internalType":"uint256","name":"newProtocolFeeShareBPS","type":"uint256"}],"name":"setFlashLoanFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newSwapFee","type":"uint256"}],"name":"setSwapFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stopRampA","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint8","name":"tokenIndexFrom","type":"uint8"},{"internalType":"uint8","name":"tokenIndexTo","type":"uint8"},{"internalType":"uint256","name":"dx","type":"uint256"},{"internalType":"uint256","name":"minDy","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"swap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"swapStorage","outputs":[{"internalType":"uint256","name":"initialA","type":"uint256"},{"internalType":"uint256","name":"futureA","type":"uint256"},{"internalType":"uint256","name":"initialATime","type":"uint256"},{"internalType":"uint256","name":"futureATime","type":"uint256"},{"internalType":"uint256","name":"swapFee","type":"uint256"},{"internalType":"uint256","name":"adminFee","type":"uint256"},{"internalType":"contract LPToken","name":"lpToken","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"enableFlashLoan","type":"bool"}],"name":"toggleFlashLoan","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawAdminFees","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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