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// SPDX-License-Identifier: BUSL-1.1
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Holdings, 2021
pragma solidity ^0.7.4;

import {SafeMath} from "@openzeppelin/contracts/math/SafeMath.sol";
import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {SafeMath} from "@openzeppelin/contracts/math/SafeMath.sol";
import {IYVault} from "../integrations/yearn/IYVault.sol";
import {Constants} from "../libraries/helpers/Constants.sol";
import {Errors} from "../libraries/helpers/Errors.sol";
import {ACLTrait} from "../core/ACLTrait.sol";
import {PercentageMath} from "../libraries/math/PercentageMath.sol";



/// @title Yearn Chainlink pricefeed adapter
contract YearnPriceFeed is AggregatorV3Interface, ACLTrait {
    using SafeMath for uint256;
    AggregatorV3Interface public priceFeed;
    IYVault public yVault;
    uint256 public decimalsDivider;
    uint256 public lowerBound;
    uint256 public upperBound;
    uint256 public timestampLimiter;

    event NewLimiterParams(uint256 lowerBound, uint256 upperBound);

    constructor(
        address addressProvider,
        address _yVault,
        address _priceFeed,
        uint256 _lowerBound,
        uint256 _upperBound
    ) ACLTrait(addressProvider) {
        require(
            _yVault != address(0) && _priceFeed != address(0),
            Errors.ZERO_ADDRESS_IS_NOT_ALLOWED
        );
        yVault = IYVault(_yVault);
        priceFeed = AggregatorV3Interface(_priceFeed);
        decimalsDivider = 10**yVault.decimals();
        _setLimiter(_lowerBound, _upperBound);
    }

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

    function description() external view override returns (string memory) {
        return priceFeed.description();
    }

    function version() external view override returns (uint256) {
        return priceFeed.version();
    }

    function getRoundData(uint80)
    external
    pure
    override
    returns (
        uint80, // roundId,
        int256, // answer,
        uint256, // startedAt,
        uint256, // updatedAt,
        uint80 // answeredInRound
    )
    {
        revert("Function is not supported");
    }

    function latestRoundData()
    external
    view
    override
    returns (
        uint80 roundId,
        int256 answer,
        uint256 startedAt,
        uint256 updatedAt,
        uint80 answeredInRound
    )
    {
        (roundId, answer, startedAt, updatedAt, answeredInRound) = priceFeed
        .latestRoundData();

        uint256 pricePerShare = yVault.pricePerShare();


        require(
            pricePerShare >= lowerBound && pricePerShare <= upperBound,
            Errors.YPF_PRICE_PER_SHARE_OUT_OF_RANGE
        );
        answer = int256(
            pricePerShare.mul(uint256(answer)).div(decimalsDivider)
        );
    }

    function setLimiter(uint256 _lowerBound, uint256 _upperBound)
    external
    configuratorOnly
    {
        _setLimiter(_lowerBound, _upperBound);
    }

    function _setLimiter(uint256 _lowerBound, uint256 _upperBound)
    internal
    {
        require(
            _lowerBound > 0 && _upperBound > _lowerBound,
            Errors.YPF_INCORRECT_LIMITER_PARAMETERS
        );
        lowerBound = _lowerBound;
        upperBound = _upperBound;
        emit NewLimiterParams(lowerBound, upperBound);
    }
}

// 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;

interface AggregatorV3Interface {

  function decimals() external view returns (uint8);
  function description() external view returns (string memory);
  function version() external view returns (uint256);

  // getRoundData and latestRoundData should both raise "No data present"
  // if they do not have data to report, instead of returning unset values
  // which could be misinterpreted as actual reported values.
  function getRoundData(uint80 _roundId)
    external
    view
    returns (
      uint80 roundId,
      int256 answer,
      uint256 startedAt,
      uint256 updatedAt,
      uint80 answeredInRound
    );
  function latestRoundData()
    external
    view
    returns (
      uint80 roundId,
      int256 answer,
      uint256 startedAt,
      uint256 updatedAt,
      uint80 answeredInRound
    );

}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../../utils/Context.sol";
import "./IERC20.sol";
import "../../math/SafeMath.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 ERC20 is Context, IERC20 {
    using SafeMath 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.
     */
    constructor (string memory name_, string memory symbol_) public {
        _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 { }
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.7.4;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IYVault is IERC20 {
    function token() external view returns (address);

    function deposit() external returns (uint256);

    function deposit(uint256 _amount) external returns (uint256);

    function deposit(uint256 _amount, address recipient)
        external
        returns (uint256);

    function withdraw() external returns (uint256);

    function withdraw(uint256 maxShares) external returns (uint256);

    function withdraw(uint256 maxShares, address recipient)
        external
        returns (uint256);

    function withdraw(
        uint256 maxShares,
        address recipient,
        uint256 maxLoss
    ) external returns (uint256);

    function pricePerShare() external view  returns (uint256);

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

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

    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: GPL-2.0-or-later
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Holdings, 2021
pragma solidity ^0.7.4;

import {PercentageMath} from "../math/PercentageMath.sol";

library Constants {
    uint256 constant MAX_INT =
        0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;

    // 25% of MAX_INT
    uint256 constant MAX_INT_4 =
        0x3fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;

    // REWARD FOR LEAN DEPLOYMENT MINING
    uint256 constant ACCOUNT_CREATION_REWARD = 1e5;
    uint256 constant DEPLOYMENT_COST = 1e17;

    // FEE = 10%
    uint256 constant FEE_INTEREST = 1000; // 10%

    // FEE + LIQUIDATION_FEE 2%
    uint256 constant FEE_LIQUIDATION = 200;

    // Liquidation premium 5%
    uint256 constant LIQUIDATION_DISCOUNTED_SUM = 9500;

    // 100% - LIQUIDATION_FEE - LIQUIDATION_PREMIUM
    uint256 constant UNDERLYING_TOKEN_LIQUIDATION_THRESHOLD =
        LIQUIDATION_DISCOUNTED_SUM - FEE_LIQUIDATION;

    // Seconds in a year
    uint256 constant SECONDS_PER_YEAR = 365 days;
    uint256 constant SECONDS_PER_ONE_AND_HALF_YEAR = SECONDS_PER_YEAR * 3 /2;

    // 1e18
    uint256 constant RAY = 1e27;
    uint256 constant WAD = 1e18;

    // OPERATIONS
    uint8 constant OPERATION_CLOSURE = 1;
    uint8 constant OPERATION_REPAY = 2;
    uint8 constant OPERATION_LIQUIDATION = 3;

    // Decimals for leverage, so x4 = 4*LEVERAGE_DECIMALS for openCreditAccount function
    uint8 constant LEVERAGE_DECIMALS = 100;

    // Maximum withdraw fee for pool in percentage math format. 100 = 1%
    uint8 constant MAX_WITHDRAW_FEE = 100;

    uint256 constant CHI_THRESHOLD = 9950;
    uint256 constant HF_CHECK_INTERVAL_DEFAULT = 4;

    uint256 constant NO_SWAP = 0;
    uint256 constant UNISWAP_V2 = 1;
    uint256 constant UNISWAP_V3 = 2;
    uint256 constant CURVE_V1 = 3;
    uint256 constant LP_YEARN = 4;

    uint256 constant EXACT_INPUT = 1;
    uint256 constant EXACT_OUTPUT = 2;
}

// SPDX-License-Identifier: GPL-2.0-or-later
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Holdings, 2021
pragma solidity ^0.7.4;


/// @title Errors library
library Errors {
    //
    // COMMON
    //

    string public constant ZERO_ADDRESS_IS_NOT_ALLOWED = "Z0";
    string public constant NOT_IMPLEMENTED = "NI";
    string public constant INCORRECT_PATH_LENGTH = "PL";
    string public constant INCORRECT_ARRAY_LENGTH = "CR";
    string public constant REGISTERED_CREDIT_ACCOUNT_MANAGERS_ONLY = "CP";
    string public constant REGISTERED_POOLS_ONLY = "RP";
    string public constant INCORRECT_PARAMETER = "IP";

    //
    // MATH
    //

    string public constant MATH_MULTIPLICATION_OVERFLOW = "M1";
    string public constant MATH_ADDITION_OVERFLOW = "M2";
    string public constant MATH_DIVISION_BY_ZERO = "M3";

    //
    // POOL
    //

    string public constant POOL_CONNECTED_CREDIT_MANAGERS_ONLY = "PS0";
    string public constant POOL_INCOMPATIBLE_CREDIT_ACCOUNT_MANAGER = "PS1";
    string public constant POOL_MORE_THAN_EXPECTED_LIQUIDITY_LIMIT = "PS2";
    string public constant POOL_INCORRECT_WITHDRAW_FEE = "PS3";
    string public constant POOL_CANT_ADD_CREDIT_MANAGER_TWICE = "PS4";

    //
    // CREDIT MANAGER
    //

    string public constant CM_NO_OPEN_ACCOUNT = "CM1";
    string
        public constant CM_ZERO_ADDRESS_OR_USER_HAVE_ALREADY_OPEN_CREDIT_ACCOUNT =
        "CM2";

    string public constant CM_INCORRECT_AMOUNT = "CM3";
    string public constant CM_CAN_LIQUIDATE_WITH_SUCH_HEALTH_FACTOR = "CM4";
    string public constant CM_CAN_UPDATE_WITH_SUCH_HEALTH_FACTOR = "CM5";
    string public constant CM_WETH_GATEWAY_ONLY = "CM6";
    string public constant CM_INCORRECT_PARAMS = "CM7";
    string public constant CM_INCORRECT_FEES = "CM8";
    string public constant CM_MAX_LEVERAGE_IS_TOO_HIGH = "CM9";
    string public constant CM_CANT_CLOSE_WITH_LOSS = "CMA";
    string public constant CM_TARGET_CONTRACT_iS_NOT_ALLOWED = "CMB";
    string public constant CM_TRANSFER_FAILED = "CMC";
    string public constant CM_INCORRECT_NEW_OWNER = "CME";

    //
    // ACCOUNT FACTORY
    //

    string public constant AF_CANT_CLOSE_CREDIT_ACCOUNT_IN_THE_SAME_BLOCK =
        "AF1";
    string public constant AF_MINING_IS_FINISHED = "AF2";
    string public constant AF_CREDIT_ACCOUNT_NOT_IN_STOCK = "AF3";
    string public constant AF_EXTERNAL_ACCOUNTS_ARE_FORBIDDEN = "AF4";

    //
    // ADDRESS PROVIDER
    //

    string public constant AS_ADDRESS_NOT_FOUND = "AP1";

    //
    // CONTRACTS REGISTER
    //

    string public constant CR_POOL_ALREADY_ADDED = "CR1";
    string public constant CR_CREDIT_MANAGER_ALREADY_ADDED = "CR2";

    //
    // CREDIT_FILTER
    //

    string public constant CF_UNDERLYING_TOKEN_FILTER_CONFLICT = "CF0";
    string public constant CF_INCORRECT_LIQUIDATION_THRESHOLD = "CF1";
    string public constant CF_TOKEN_IS_NOT_ALLOWED = "CF2";
    string public constant CF_CREDIT_MANAGERS_ONLY = "CF3";
    string public constant CF_ADAPTERS_ONLY = "CF4";
    string public constant CF_OPERATION_LOW_HEALTH_FACTOR = "CF5";
    string public constant CF_TOO_MUCH_ALLOWED_TOKENS = "CF6";
    string public constant CF_INCORRECT_CHI_THRESHOLD = "CF7";
    string public constant CF_INCORRECT_FAST_CHECK = "CF8";
    string public constant CF_NON_TOKEN_CONTRACT = "CF9";
    string public constant CF_CONTRACT_IS_NOT_IN_ALLOWED_LIST = "CFA";
    string public constant CF_FAST_CHECK_NOT_COVERED_COLLATERAL_DROP = "CFB";
    string public constant CF_SOME_LIQUIDATION_THRESHOLD_MORE_THAN_NEW_ONE =
        "CFC";
    string public constant CF_ADAPTER_CAN_BE_USED_ONLY_ONCE = "CFD";
    string public constant CF_INCORRECT_PRICEFEED = "CFE";
    string public constant CF_TRANSFER_IS_NOT_ALLOWED = "CFF";
    string public constant CF_CREDIT_MANAGER_IS_ALREADY_SET = "CFG";

    //
    // CREDIT ACCOUNT
    //

    string public constant CA_CONNECTED_CREDIT_MANAGER_ONLY = "CA1";
    string public constant CA_FACTORY_ONLY = "CA2";

    //
    // PRICE ORACLE
    //

    string public constant PO_PRICE_FEED_DOESNT_EXIST = "PO0";
    string public constant PO_TOKENS_WITH_DECIMALS_MORE_18_ISNT_ALLOWED = "PO1";
    string public constant PO_AGGREGATOR_DECIMALS_SHOULD_BE_18 = "PO2";

    //
    // ACL
    //

    string public constant ACL_CALLER_NOT_PAUSABLE_ADMIN = "ACL1";
    string public constant ACL_CALLER_NOT_CONFIGURATOR = "ACL2";

    //
    // WETH GATEWAY
    //

    string public constant WG_DESTINATION_IS_NOT_WETH_COMPATIBLE = "WG1";
    string public constant WG_RECEIVE_IS_NOT_ALLOWED = "WG2";
    string public constant WG_NOT_ENOUGH_FUNDS = "WG3";

    //
    // LEVERAGED ACTIONS
    //

    string public constant LA_INCORRECT_VALUE = "LA1";
    string public constant LA_HAS_VALUE_WITH_TOKEN_TRANSFER = "LA2";
    string public constant LA_UNKNOWN_SWAP_INTERFACE = "LA3";
    string public constant LA_UNKNOWN_LP_INTERFACE = "LA4";
    string public constant LA_LOWER_THAN_AMOUNT_MIN = "LA5";
    string public constant LA_TOKEN_OUT_IS_NOT_COLLATERAL = "LA6";

    //
    // YEARN PRICE FEED
    //
    string public constant YPF_PRICE_PER_SHARE_OUT_OF_RANGE = "YP1";
    string public constant YPF_INCORRECT_LIMITER_PARAMETERS = "YP2";

    //
    // TOKEN DISTRIBUTOR
    //
    string public constant TD_WALLET_IS_ALREADY_CONNECTED_TO_VC = "TD1";
    string public constant TD_INCORRECT_WEIGHTS = "TD2";
    string public constant TD_NON_ZERO_BALANCE_AFTER_DISTRIBUTION = "TD3";
    string public constant TD_CONTRIBUTOR_IS_NOT_REGISTERED = "TD4";
}

// SPDX-License-Identifier: BUSL-1.1
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Holdings, 2021
pragma solidity ^0.7.4;

import {Pausable} from "@openzeppelin/contracts/utils/Pausable.sol";
import {AddressProvider} from "./AddressProvider.sol";
import {ACL} from "./ACL.sol";
import {Errors} from "../libraries/helpers/Errors.sol";


/// @title ACL Trait
/// @notice Trait which adds acl functions to contract
abstract contract ACLTrait is Pausable {
    // ACL contract to check rights
    ACL private _acl;

    /// @dev constructor
    /// @param addressProvider Address of address repository
    constructor(address addressProvider) {
        require(
            addressProvider != address(0),
            Errors.ZERO_ADDRESS_IS_NOT_ALLOWED
        );

        _acl = ACL(AddressProvider(addressProvider).getACL());
    }

    /// @dev  Reverts if msg.sender is not configurator
    modifier configuratorOnly() {
        require(
            _acl.isConfigurator(msg.sender),
            Errors.ACL_CALLER_NOT_CONFIGURATOR
        ); // T:[ACLT-8]
        _;
    }

    ///@dev Pause contract
    function pause() external {
        require(
            _acl.isPausableAdmin(msg.sender),
            Errors.ACL_CALLER_NOT_PAUSABLE_ADMIN
        ); // T:[ACLT-1]
        _pause();
    }

    /// @dev Unpause contract
    function unpause() external {
        require(
            _acl.isUnpausableAdmin(msg.sender),
            Errors.ACL_CALLER_NOT_PAUSABLE_ADMIN
        ); // T:[ACLT-1],[ACLT-2]
        _unpause();
    }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.7.4;

import {Errors} from "../helpers/Errors.sol";

/**
 * @title PercentageMath library
 * @author Aave
 * @notice Provides functions to perform percentage calculations
 * @dev Percentages are defined by default with 2 decimals of precision (100.00). The precision is indicated by PERCENTAGE_FACTOR
 * @dev Operations are rounded half up
 **/

library PercentageMath {
    uint256 constant PERCENTAGE_FACTOR = 1e4; //percentage plus two decimals
    uint256 constant HALF_PERCENT = PERCENTAGE_FACTOR / 2;

    /**
     * @dev Executes a percentage multiplication
     * @param value The value of which the percentage needs to be calculated
     * @param percentage The percentage of the value to be calculated
     * @return The percentage of value
     **/
    function percentMul(uint256 value, uint256 percentage)
        internal
        pure
        returns (uint256)
    {
        if (value == 0 || percentage == 0) {
            return 0; // T:[PM-1]
        }

        require(
            value <= (type(uint256).max - HALF_PERCENT) / percentage,
            Errors.MATH_MULTIPLICATION_OVERFLOW
        ); // T:[PM-1]

        return (value * percentage + HALF_PERCENT) / PERCENTAGE_FACTOR; // T:[PM-1]
    }

    /**
     * @dev Executes a percentage division
     * @param value The value of which the percentage needs to be calculated
     * @param percentage The percentage of the value to be calculated
     * @return The value divided the percentage
     **/
    function percentDiv(uint256 value, uint256 percentage)
        internal
        pure
        returns (uint256)
    {
        require(percentage != 0, Errors.MATH_DIVISION_BY_ZERO); // T:[PM-2]
        uint256 halfPercentage = percentage / 2; // T:[PM-2]

        require(
            value <= (type(uint256).max - halfPercentage) / PERCENTAGE_FACTOR,
            Errors.MATH_MULTIPLICATION_OVERFLOW
        ); // T:[PM-2]

        return (value * PERCENTAGE_FACTOR + halfPercentage) / percentage;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

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

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

// 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 >=0.6.0 <0.8.0;

import "./Context.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 Pausable is Context {
    /**
     * @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.
     */
    constructor () internal {
        _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());
    }
}

// SPDX-License-Identifier: BUSL-1.1
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Holdings, 2021
pragma solidity ^0.7.4;

import {IAppAddressProvider} from "../interfaces/app/IAppAddressProvider.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {Errors} from "../libraries/helpers/Errors.sol";


/// @title AddressRepository
/// @notice Stores addresses of deployed contracts
contract AddressProvider is Ownable, IAppAddressProvider {
    // Mapping which keeps all addresses
    mapping(bytes32 => address) public addresses;

    // Emits each time when new address is set
    event AddressSet(bytes32 indexed service, address indexed newAddress);

    // This event is triggered when a call to ClaimTokens succeeds.
    event Claimed(uint256 user_id, address account, uint256 amount, bytes32 leaf);

    // Repositories & services
    bytes32 public constant CONTRACTS_REGISTER = "CONTRACTS_REGISTER";
    bytes32 public constant ACL = "ACL";
    bytes32 public constant PRICE_ORACLE = "PRICE_ORACLE";
    bytes32 public constant ACCOUNT_FACTORY = "ACCOUNT_FACTORY";
    bytes32 public constant DATA_COMPRESSOR = "DATA_COMPRESSOR";
    bytes32 public constant TREASURY_CONTRACT = "TREASURY_CONTRACT";
    bytes32 public constant GEAR_TOKEN = "GEAR_TOKEN";
    bytes32 public constant WETH_TOKEN = "WETH_TOKEN";
    bytes32 public constant WETH_GATEWAY = "WETH_GATEWAY";
    bytes32 public constant LEVERAGED_ACTIONS = "LEVERAGED_ACTIONS";

    // Contract version
    uint256 public constant version = 1;

    constructor() {
        // @dev Emits first event for contract discovery
        emit AddressSet("ADDRESS_PROVIDER", address(this));
    }

    /// @return Address of ACL contract
    function getACL() external view returns (address) {
        return _getAddress(ACL); // T:[AP-3]
    }

    /// @dev Sets address of ACL contract
    /// @param _address Address of ACL contract
    function setACL(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(ACL, _address); // T:[AP-3]
    }

    /// @return Address of ContractsRegister
    function getContractsRegister() external view returns (address) {
        return _getAddress(CONTRACTS_REGISTER); // T:[AP-4]
    }

    /// @dev Sets address of ContractsRegister
    /// @param _address Address of ContractsRegister
    function setContractsRegister(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(CONTRACTS_REGISTER, _address); // T:[AP-4]
    }

    /// @return Address of PriceOracle
    function getPriceOracle() external view override returns (address) {
        return _getAddress(PRICE_ORACLE); // T:[AP-5]
    }

    /// @dev Sets address of PriceOracle
    /// @param _address Address of PriceOracle
    function setPriceOracle(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(PRICE_ORACLE, _address); // T:[AP-5]
    }

    /// @return Address of AccountFactory
    function getAccountFactory() external view returns (address) {
        return _getAddress(ACCOUNT_FACTORY); // T:[AP-6]
    }

    /// @dev Sets address of AccountFactory
    /// @param _address Address of AccountFactory
    function setAccountFactory(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(ACCOUNT_FACTORY, _address); // T:[AP-7]
    }

    /// @return Address of AccountFactory
    function getDataCompressor() external view override returns (address) {
        return _getAddress(DATA_COMPRESSOR); // T:[AP-8]
    }

    /// @dev Sets address of AccountFactory
    /// @param _address Address of AccountFactory
    function setDataCompressor(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(DATA_COMPRESSOR, _address); // T:[AP-8]
    }

    /// @return Address of Treasury contract
    function getTreasuryContract() external view returns (address) {
        return _getAddress(TREASURY_CONTRACT); //T:[AP-11]
    }

    /// @dev Sets address of Treasury Contract
    /// @param _address Address of Treasury Contract
    function setTreasuryContract(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(TREASURY_CONTRACT, _address); //T:[AP-11]
    }

    /// @return Address of GEAR token
    function getGearToken() external view override returns (address) {
        return _getAddress(GEAR_TOKEN); // T:[AP-12]
    }

    /// @dev Sets address of GEAR token
    /// @param _address Address of GEAR token
    function setGearToken(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(GEAR_TOKEN, _address); // T:[AP-12]
    }

    /// @return Address of WETH token
    function getWethToken() external view override returns (address) {
        return _getAddress(WETH_TOKEN); // T:[AP-13]
    }

    /// @dev Sets address of WETH token
    /// @param _address Address of WETH token
    function setWethToken(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(WETH_TOKEN, _address); // T:[AP-13]
    }

    /// @return Address of WETH token
    function getWETHGateway() external view override returns (address) {
        return _getAddress(WETH_GATEWAY); // T:[AP-14]
    }

    /// @dev Sets address of WETH token
    /// @param _address Address of WETH token
    function setWETHGateway(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(WETH_GATEWAY, _address); // T:[AP-14]
    }

    /// @return Address of WETH token
    function getLeveragedActions() external view override returns (address) {
        return _getAddress(LEVERAGED_ACTIONS); // T:[AP-7]
    }

    /// @dev Sets address of WETH token
    /// @param _address Address of WETH token
    function setLeveragedActions(address _address)
        external
        onlyOwner // T:[AP-15]
    {
        _setAddress(LEVERAGED_ACTIONS, _address); // T:[AP-7]
    }

    /// @return Address of key, reverts if key doesn't exist
    function _getAddress(bytes32 key) internal view returns (address) {
        address result = addresses[key];
        require(result != address(0), Errors.AS_ADDRESS_NOT_FOUND); // T:[AP-1]
        return result; // T:[AP-3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
    }

    /// @dev Sets address to map by its key
    /// @param key Key in string format
    /// @param value Address
    function _setAddress(bytes32 key, address value) internal {
        addresses[key] = value; // T:[AP-3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
        emit AddressSet(key, value); // T:[AP-2]
    }
}

// SPDX-License-Identifier: BUSL-1.1
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Holdings, 2021
pragma solidity ^0.7.4;

import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {Errors} from "../libraries/helpers/Errors.sol";


/// @title ACL keeps admins addresses
/// More info: https://dev.gearbox.fi/security/roles
contract ACL is Ownable {
    mapping(address => bool) public pausableAdminSet;
    mapping(address => bool) public unpausableAdminSet;

    // Contract version
    uint256 public constant version = 1;

    // emits each time when new pausable admin added
    event PausableAdminAdded(address indexed newAdmin);

    // emits each time when pausable admin removed
    event PausableAdminRemoved(address indexed admin);

    // emits each time when new unpausable admin added
    event UnpausableAdminAdded(address indexed newAdmin);

    // emits each times when unpausable admin removed
    event UnpausableAdminRemoved(address indexed admin);

    /// @dev Adds pausable admin address
    /// @param newAdmin Address of new pausable admin
    function addPausableAdmin(address newAdmin)
        external
        onlyOwner // T:[ACL-1]
    {
        pausableAdminSet[newAdmin] = true; // T:[ACL-2]
        emit PausableAdminAdded(newAdmin); // T:[ACL-2]
    }

    /// @dev Removes pausable admin
    /// @param admin Address of admin which should be removed
    function removePausableAdmin(address admin)
        external
        onlyOwner // T:[ACL-1]
    {
        pausableAdminSet[admin] = false; // T:[ACL-3]
        emit PausableAdminRemoved(admin); // T:[ACL-3]
    }

    /// @dev Returns true if the address is pausable admin and false if not
    function isPausableAdmin(address addr) external view returns (bool) {
        return pausableAdminSet[addr]; // T:[ACL-2,3]
    }

    /// @dev Adds unpausable admin address to the list
    /// @param newAdmin Address of new unpausable admin
    function addUnpausableAdmin(address newAdmin)
        external
        onlyOwner // T:[ACL-1]
    {
        unpausableAdminSet[newAdmin] = true; // T:[ACL-4]
        emit UnpausableAdminAdded(newAdmin); // T:[ACL-4]
    }

    /// @dev Removes unpausable admin
    /// @param admin Address of admin to be removed
    function removeUnpausableAdmin(address admin)
        external
        onlyOwner // T:[ACL-1]
    {
        unpausableAdminSet[admin] = false; // T:[ACL-5]
        emit UnpausableAdminRemoved(admin); // T:[ACL-5]
    }

    /// @dev Returns true if the address is unpausable admin and false if not
    function isUnpausableAdmin(address addr) external view returns (bool) {
        return unpausableAdminSet[addr]; // T:[ACL-4,5]
    }

    /// @dev Returns true if addr has configurator rights
    function isConfigurator(address account) external view returns (bool) {
        return account == owner(); // T:[ACL-6]
    }
}

// SPDX-License-Identifier: GPL-2.0-or-later
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Holdings, 2021
pragma solidity ^0.7.4;


/// @title Optimised for front-end Address Provider interface
interface IAppAddressProvider {
    function getDataCompressor() external view returns (address);

    function getGearToken() external view returns (address);

    function getWethToken() external view returns (address);

    function getWETHGateway() external view returns (address);

    function getPriceOracle() external view returns (address);

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../utils/Context.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 Ownable is Context {
    address private _owner;

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

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

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

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

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

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

{
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"addressProvider","type":"address"},{"internalType":"address","name":"_yVault","type":"address"},{"internalType":"address","name":"_priceFeed","type":"address"},{"internalType":"uint256","name":"_lowerBound","type":"uint256"},{"internalType":"uint256","name":"_upperBound","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"lowerBound","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"upperBound","type":"uint256"}],"name":"NewLimiterParams","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimalsDivider","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"description","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint80","name":"","type":"uint80"}],"name":"getRoundData","outputs":[{"internalType":"uint80","name":"","type":"uint80"},{"internalType":"int256","name":"","type":"int256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint80","name":"","type":"uint80"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"latestRoundData","outputs":[{"internalType":"uint80","name":"roundId","type":"uint80"},{"internalType":"int256","name":"answer","type":"int256"},{"internalType":"uint256","name":"startedAt","type":"uint256"},{"internalType":"uint256","name":"updatedAt","type":"uint256"},{"internalType":"uint80","name":"answeredInRound","type":"uint80"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lowerBound","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"priceFeed","outputs":[{"internalType":"contract AggregatorV3Interface","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_lowerBound","type":"uint256"},{"internalType":"uint256","name":"_upperBound","type":"uint256"}],"name":"setLimiter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"timestampLimiter","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"upperBound","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"yVault","outputs":[{"internalType":"contract IYVault","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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000000000000000000000000cf64698aff7e5f27a11dff868af228653ba53be0000000000000000000000000da816459f1ab5631232fe5e97a05bbbb94970c95000000000000000000000000773616e4d11a78f511299002da57a0a94577f1f40000000000000000000000000000000000000000000000000e16011f4f0580000000000000000000000000000000000000000000000000000e27c49886e60000

-----Decoded View---------------
Arg [0] : addressProvider (address): 0xcF64698AFF7E5f27A11dff868AF228653ba53be0
Arg [1] : _yVault (address): 0xdA816459F1AB5631232FE5e97a05BBBb94970c95
Arg [2] : _priceFeed (address): 0x773616E4d11A78F511299002da57A0a94577F1f4
Arg [3] : _lowerBound (uint256): 1015000000000000000
Arg [4] : _upperBound (uint256): 1020000000000000000

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 000000000000000000000000cf64698aff7e5f27a11dff868af228653ba53be0
Arg [1] : 000000000000000000000000da816459f1ab5631232fe5e97a05bbbb94970c95
Arg [2] : 000000000000000000000000773616e4d11a78f511299002da57a0a94577f1f4
Arg [3] : 0000000000000000000000000000000000000000000000000e16011f4f058000
Arg [4] : 0000000000000000000000000000000000000000000000000e27c49886e60000