Contract 0xe8dd7766f476Af2d0676429567B7e39c3FF358C0

// SPDX-License-Identifier: MIT

pragma solidity ^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 ^0.8.0;

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

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

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _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 ^0.8.0;

/**
 * @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

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler
 * now has built in overflow checking.
 */
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) {
        unchecked {
            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) {
        unchecked {
            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) {
        unchecked {
            // 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) {
        unchecked {
            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) {
        unchecked {
            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) {
        return a + b;
    }

    /**
     * @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) {
        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) {
        return a * b;
    }

    /**
     * @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.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        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) {
        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) {
        unchecked {
            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.
     *
     * 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).
     *
     * 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) {
        unchecked {
            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) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

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

// 0x445fe580ef8d70ff569ab36e80c647af338db351

interface ICurvePool {
	event TokenExchangeUnderlying(
		address indexed buyer,
		int128 sold_id,
		uint256 tokens_sold,
		int128 bought_id,
		uint256 tokens_bought
	);

	// solium-disable-next-line mixedcase
	function exchange_underlying(
		int128 i,
		int128 j,
		uint256 dx,
		uint256 minDy
	) external returns (uint256);

	function add_liquidity(
		uint256[3] calldata amounts,
		uint256 min_mint_amount,
		bool use_underlying
	) external returns (uint256);

	function remove_liquidity_imbalance(
		uint256[3] calldata amounts,
		uint256 max_burn_amount,
		bool use_underlying
	) external;

	function remove_liquidity_one_coin(
		uint256 token_amount,
		int128 i,
		uint256 min_amount,
		bool use_underlying
	) external returns (uint256);

	function calc_withdraw_one_coin(uint256 _token_amount, int128 i)
		external
		view
		returns (uint256);

	function calc_token_amount(uint256[3] calldata amounts, bool is_deposit)
		external
		view
		returns (uint256);

	function get_virtual_price() external view returns (uint256);

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

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

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

interface IMemory {
	function getUint(uint256) external view returns (uint256);

	function setUint(uint256 id, uint256 value) external;

	function getAToken(address asset) external view returns (address);

	function setAToken(address asset, address _aToken) external;

	function getCrToken(address asset) external view returns (address);

	function setCrToken(address asset, address _crToken) external;
}

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

/**
 * @title RegistryInterface Interface
 */
interface IRegistry {
	function logic(address logicAddr) external view returns (bool);

	function implementation(bytes32 key) external view returns (address);

	function notAllowed(address erc20) external view returns (bool);

	function deployWallet() external returns (address);

	function wallets(address user) external view returns (address);

	function getFee() external view returns (uint256);

	function feeRecipient() external view returns (address);

	function memoryAddr() external view returns (address);

	function distributionContract(address token)
		external
		view
		returns (address);
}

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

interface IWallet {
	event LogMint(address indexed erc20, uint256 tokenAmt);
	event LogRedeem(address indexed erc20, uint256 tokenAmt);
	event LogBorrow(address indexed erc20, uint256 tokenAmt);
	event LogPayback(address indexed erc20, uint256 tokenAmt);
	event LogDeposit(address indexed erc20, uint256 tokenAmt);
	event LogWithdraw(address indexed erc20, uint256 tokenAmt);
	event LogSwap(address indexed src, address indexed dest, uint256 amount);
	event LogLiquidityAdd(
		address indexed tokenA,
		address indexed tokenB,
		uint256 amountA,
		uint256 amountB
	);
	event LogLiquidityRemove(
		address indexed tokenA,
		address indexed tokenB,
		uint256 amountA,
		uint256 amountB
	);
	event VaultDeposit(address indexed erc20, uint256 tokenAmt);
	event VaultWithdraw(address indexed erc20, uint256 tokenAmt);
	event VaultClaim(address indexed erc20, uint256 tokenAmt);
	event DelegateAdded(address delegate);
	event DelegateRemoved(address delegate);

	function executeMetaTransaction(bytes memory sign, bytes memory data)
		external;

	function execute(address[] calldata targets, bytes[] calldata datas)
		external
		payable;

	function owner() external view returns (address);

	function registry() external view returns (address);

	function DELEGATE_ROLE() external view returns (bytes32);

	function hasRole(bytes32, address) external view returns (bool);
}

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

import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

library UniversalERC20 {
	using SafeMath for uint256;
	using SafeERC20 for IERC20;

	IERC20 private constant ZERO_ADDRESS =
		IERC20(0x0000000000000000000000000000000000000000);
	IERC20 private constant ETH_ADDRESS =
		IERC20(0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE);

	function universalTransfer(
		IERC20 token,
		address to,
		uint256 amount
	) internal returns (bool success) {
		if (amount == 0) {
			return true;
		}

		if (isETH(token)) {
			payable(to).transfer(amount);
		} else {
			token.safeTransfer(to, amount);
			return true;
		}
	}

	function universalTransferFrom(
		IERC20 token,
		address from,
		address to,
		uint256 amount
	) internal {
		if (amount == 0) {
			return;
		}

		if (isETH(token)) {
			require(
				from == msg.sender && msg.value >= amount,
				"Wrong useage of ETH.universalTransferFrom()"
			);
			if (to != address(this)) {
				payable(to).transfer(amount);
			}
			if (msg.value > amount) {
				payable(msg.sender).transfer(msg.value.sub(amount));
			}
		} else {
			token.safeTransferFrom(from, to, amount);
		}
	}

	function universalTransferFromSenderToThis(IERC20 token, uint256 amount)
		internal
	{
		if (amount == 0) {
			return;
		}

		if (isETH(token)) {
			if (msg.value > amount) {
				// Return remainder if exist
				payable(msg.sender).transfer(msg.value.sub(amount));
			}
		} else {
			token.safeTransferFrom(msg.sender, address(this), amount);
		}
	}

	function universalApprove(
		IERC20 token,
		address to,
		uint256 amount
	) internal {
		if (!isETH(token)) {
			if (amount == 0) {
				token.safeApprove(to, 0);
				return;
			}

			uint256 allowance = token.allowance(address(this), to);
			if (allowance < amount) {
				if (allowance > 0) {
					token.safeApprove(to, 0);
				}
				token.safeApprove(to, amount);
			}
		}
	}

	function universalBalanceOf(IERC20 token, address who)
		internal
		view
		returns (uint256)
	{
		if (isETH(token)) {
			return who.balance;
		} else {
			return token.balanceOf(who);
		}
	}

	function universalDecimals(IERC20 token) internal view returns (uint256) {
		if (isETH(token)) {
			return 18;
		}

		(bool success, bytes memory data) =
			address(token).staticcall{gas: 10000}(
				abi.encodeWithSignature("decimals()")
			);
		if (!success || data.length == 0) {
			(success, data) = address(token).staticcall{gas: 10000}(
				abi.encodeWithSignature("DECIMALS()")
			);
		}

		return (success && data.length > 0) ? abi.decode(data, (uint256)) : 18;
	}

	function isETH(IERC20 token) internal pure returns (bool) {
		return (address(token) == address(ZERO_ADDRESS) ||
			address(token) == address(ETH_ADDRESS));
	}
}

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

import "../libs/UniversalERC20.sol";
import "../interfaces/ICurvePool.sol";
import "./Helpers.sol";

contract CurveLogic is Helpers {
	using UniversalERC20 for IERC20;
	using SafeMath for uint256;

	// EVENTS
	event LogSwap(address indexed src, address indexed dest, uint256 amount);
	event LogLiquidityAdd(
		address indexed tokenA,
		address indexed tokenB,
		uint256 amountA,
		uint256 amountB
	);
	event LogLiquidityRemove(
		address indexed tokenA,
		address indexed tokenB,
		uint256 amountA,
		uint256 amountB
	);

	function toInt128(uint256 num) internal pure returns (int128) {
		return int128(int256(num));
	}

	/**
	 * @notice add liquidity to Curve Pool
	 * @param getId read value from memory contract
	 * @param setId set dest tokens received to memory contract
	 */
	function swap(
		ICurvePool pool,
		address src,
		address dest,
		uint256 tokenAmt,
		uint256 getId,
		uint256 setId,
		uint256 divider
	) external payable {
		uint256 realAmt = getId > 0 ? getUint(getId).div(divider) : tokenAmt;

		uint256 i;
		uint256 j;

		for (uint256 x = 1; x <= 3; x++) {
			if (pool.underlying_coins(x - 1) == src) i = x;
			if (pool.underlying_coins(x - 1) == dest) j = x;
		}

		require(i != 0 && j != 0);

		IERC20(src).universalApprove(address(pool), realAmt);

		uint256 received = pool.exchange_underlying(
			toInt128(i - 1),
			toInt128(j - 1),
			realAmt,
			0
		);

		// set j tokens received
		if (setId > 0) {
			setUint(setId, received);
		}

		emit LogSwap(
			pool.underlying_coins(i - 1),
			pool.underlying_coins(j - 1),
			realAmt
		);
	}

	/**
	 * @notice add liquidity to Curve Pool
	 * @param tokenId id of the token to remove liq. Should be 0, 1 or 2
	 * @param getId read value from memory contract
	 * @param setId set LP tokens received to memory contract
	 */
	function addLiquidity(
		ICurvePool pool,
		uint256 tokenAmt,
		uint256 tokenId, // 0, 1 or 2
		uint256 getId,
		uint256 setId,
		uint256 divider
	) external payable {
		IERC20 token;

		try pool.underlying_coins(tokenId) returns (address _token) {
			token = IERC20(_token);
		} catch {
			revert("!TOKENID");
		}

		uint256 realAmt = getId > 0 ? getUint(getId).div(divider) : tokenAmt;

		uint256[3] memory tokenAmts;
		tokenAmts[tokenId] = realAmt;

		IERC20(token).universalApprove(address(pool), realAmt);

		uint256 liquidity = pool.add_liquidity(tokenAmts, 0, true);

		// set LP tokens received
		if (setId > 0) {
			setUint(setId, liquidity);
		}

		emit LogLiquidityAdd(address(token), address(0), realAmt, 0);
	}

	/**
	 * @notice remove liquidity from Curve Pool
	 * @param tokenAmt amount of pool Tokens to burn
	 * @param tokenId id of the token to remove liq. Should be 0, 1 or 2
	 * @param getId read value of amount from memory contract
	 * @param setId set value of tokens received in memory contract
	 */
	function removeLiquidity(
		ICurvePool pool,
		uint256 tokenAmt,
		uint256 tokenId,
		uint256 getId,
		uint256 setId,
		uint256 divider
	) external payable {
		uint256 realAmt = getId > 0 ? getUint(getId).div(divider) : tokenAmt;

		require(realAmt > 0, "ZERO AMOUNT");
		require(tokenId <= 2, "INVALID TOKEN");

		IERC20 poolToken = IERC20(pool.lp_token());

		poolToken.universalApprove(address(pool), realAmt);

		uint256 amountReceived = pool.remove_liquidity_one_coin(
			realAmt,
			int128(int256(tokenId)),
			1,
			true
		);

		// set tokens received
		if (setId > 0) {
			setUint(setId, amountReceived);
		}

		emit LogLiquidityRemove(
			pool.underlying_coins(tokenId),
			address(0),
			amountReceived,
			0
		);
	}
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.4;

import "../interfaces/IMemory.sol";
import "../interfaces/IRegistry.sol";
import "../interfaces/IWallet.sol";

contract Helpers {
	/**
	 * @dev Return Memory Variable Address
	 */
	function getMemoryAddr() public view returns (address) {
		return IRegistry(IWallet(address(this)).registry()).memoryAddr();
	}

	/**
	 * @dev Get Uint value from Memory Contract.
	 */
	function getUint(uint256 id) internal view returns (uint256) {
		return IMemory(getMemoryAddr()).getUint(id);
	}

	/**
	 * @dev Set Uint value in Memory Contract.
	 */
	function setUint(uint256 id, uint256 val) internal {
		IMemory(getMemoryAddr()).setUint(id, val);
	}

	/**
	 * @dev Get aToken address from Memory Contract.
	 */
	function getAToken(address asset) internal view returns (address) {
		return IMemory(getMemoryAddr()).getAToken(asset);
	}

	/**
	 * @dev Get crToken address from Memory Contract.
	 */
	function getCrToken(address asset) internal view returns (address) {
		return IMemory(getMemoryAddr()).getCrToken(asset);
	}
}

{
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"tokenA","type":"address"},{"indexed":true,"internalType":"address","name":"tokenB","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountA","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountB","type":"uint256"}],"name":"LogLiquidityAdd","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"tokenA","type":"address"},{"indexed":true,"internalType":"address","name":"tokenB","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountA","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountB","type":"uint256"}],"name":"LogLiquidityRemove","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"src","type":"address"},{"indexed":true,"internalType":"address","name":"dest","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"LogSwap","type":"event"},{"inputs":[{"internalType":"contract ICurvePool","name":"pool","type":"address"},{"internalType":"uint256","name":"tokenAmt","type":"uint256"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"getId","type":"uint256"},{"internalType":"uint256","name":"setId","type":"uint256"},{"internalType":"uint256","name":"divider","type":"uint256"}],"name":"addLiquidity","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"getMemoryAddr","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract ICurvePool","name":"pool","type":"address"},{"internalType":"uint256","name":"tokenAmt","type":"uint256"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"getId","type":"uint256"},{"internalType":"uint256","name":"setId","type":"uint256"},{"internalType":"uint256","name":"divider","type":"uint256"}],"name":"removeLiquidity","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"contract ICurvePool","name":"pool","type":"address"},{"internalType":"address","name":"src","type":"address"},{"internalType":"address","name":"dest","type":"address"},{"internalType":"uint256","name":"tokenAmt","type":"uint256"},{"internalType":"uint256","name":"getId","type":"uint256"},{"internalType":"uint256","name":"setId","type":"uint256"},{"internalType":"uint256","name":"divider","type":"uint256"}],"name":"swap","outputs":[],"stateMutability":"payable","type":"function"}]

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