Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

import "@openzeppelin/contracts/math/Math.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import "../uniswap/IUniswapV2Router02.sol";
import "../utils/OwnablePausable.sol";
import "./IDepositaryBalanceView.sol";
import "../Issuer.sol";

contract UniV2BuybackDepositaryBalanceView is IDepositaryBalanceView, OwnablePausable {
    using Math for uint256;
    using SafeMath for uint256;
    using SafeERC20 for ERC20;

    /// @notice Balance decimals.
    uint256 public constant override decimals = 18;

    /// @notice Address of buyback token.
    ERC20 public immutable token;

    /// @notice Address of issuer contract.
    Issuer public issuer;

    /// @notice Uniswap router contract.
    IUniswapV2Router02 public uniswapRouter;

    /// @notice Buyback caller.
    address public caller;

    /// @notice An event that is emitted when an issuer contract address changed.
    event IssuerChanged(address newIssuer);

    /// @notice An event that is emitted when an Uniswap router contract address changed.
    event UniswapRouterChanged(address newRouter);

    /// @notice An event that is emitted when an caller wallet changed.
    event CallerChanged(address newCaller);

    /// @notice An event that is emitted when an contract buyback stable token.
    event Buyback(uint256 amount, uint256 buy);

    constructor(
        address _token,
        address _issuer,
        address _uniswapRouter,
        address _caller
    ) public {
        token = ERC20(_token);
        issuer = Issuer(_issuer);
        uniswapRouter = IUniswapV2Router02(_uniswapRouter);
        caller = _caller;
    }

    /**
     * @notice Change issuer contract address.
     * @param _issuer New issuer contract address.
     */
    function changeIssuer(address _issuer) external onlyOwner {
        require(_issuer != address(0), "UniV2BuybackDepositaryBalanceView::changeIssuer: invalid address");
        issuer = Issuer(_issuer);

        require(issuer.stableToken().decimals() >= ERC20(token).decimals(), "UniV2BuybackDepositaryBalanceView::changeIssuer: invalid stable token decimals");

        emit IssuerChanged(_issuer);
    }

    /**
     * @notice Change Uniswap router contract address.
     * @param _uniswapRouter New Uniswap router contract address.
     */
    function changeUniswapRouter(address _uniswapRouter) external onlyOwner {
        require(_uniswapRouter != address(0), "UniV2BuybackDepositaryBalanceView::changeUniswapRouter: invalid address");
        uniswapRouter = IUniswapV2Router02(_uniswapRouter);
        emit UniswapRouterChanged(_uniswapRouter);
    }

    /**
     * @notice Change caller wallet.
     * @param _caller New caller wallet.
     */
    function changeCaller(address _caller) external onlyOwner {
        caller = _caller;
        emit CallerChanged(_caller);
    }

    /**
     * @notice Transfer token to recipient.
     * @param _token Target token.
     * @param recipient Address of recipient.
     * @param amount Amount of transferred token.
     */
    function transfer(
        address _token,
        address recipient,
        uint256 amount
    ) external onlyOwner {
        ERC20(_token).safeTransfer(recipient, amount);
    }

    /**
     * @notice Buyback stable token from Uniswap pool.
     * @param amount Amount of buyback token.
     */
    function buy(uint256 amount) external whenNotPaused {
        require(_msgSender() == owner() || _msgSender() == caller, "UniV2BuybackDepositaryBalanceView::buy: invalid caller");
        require(amount > 0, "UniV2BuybackDepositaryBalanceView::buy: zero amount");

        address stableToken = address(issuer.stableToken());
        uint256 stableTokenDecimals = ERC20(stableToken).decimals();

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

        address[] memory path = new address[](2);
        path[0] = address(token);
        path[1] = stableToken;
        uint256[] memory amounts = uniswapRouter.swapExactTokensForTokens(
            amount,
            amount.mul(10**(stableTokenDecimals.sub(token.decimals()))), // 1 to 1
            path,
            address(this),
            block.timestamp + 10 minutes
        );

        uint256 stableTotalSupply = ERC20(stableToken).totalSupply();
        uint256 collateralBalance = issuer.balance();
        if (stableTotalSupply > collateralBalance) {
            uint256 issuerInbalance = stableTotalSupply.sub(collateralBalance);
            uint256 burningAmount = issuerInbalance.min(ERC20(stableToken).balanceOf(address(this)));
            if (burningAmount > 0) {
                ERC20(stableToken).safeTransfer(address(issuer), burningAmount);
                issuer.rebalance();
            }
        }
        emit Buyback(amount, amounts[1]);
    }

    /**
     * @notice Get balance of depositary.
     * @return Balance of depositary.
     */
    function balance() external view override returns (uint256) {
        uint256 tokenBalance = token.balanceOf(address(this));

        return tokenBalance.mul(10**(decimals.sub(token.decimals())));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/*
 * @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;

import "../GSN/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.
 */
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 returns (address) {
        return _owner;
    }

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow, so we distribute
        return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @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, 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) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

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

        return c;
    }

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

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

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

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

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

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(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;

import "../../GSN/Context.sol";
import "./IERC20.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.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;
    using Address for address;

    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 returns (string memory) {
        return _name;
    }

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

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view 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 {
        _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: MIT

pragma solidity ^0.6.0;

/**
 * @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;

import "./IERC20.sol";
import "../../math/SafeMath.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 SafeMath for uint256;
    using Address for address;

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.2;

/**
 * @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 in 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");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256`
 * (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;

        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping (bytes32 => uint256) _indexes;
    }

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

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

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

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            bytes32 lastvalue = set._values[lastIndex];

            // Move the last value to the index where the value to delete is
            set._values[toDeleteIndex] = lastvalue;
            // Update the index for the moved value
            set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based

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

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

            return true;
        } else {
            return false;
        }
    }

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

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        require(set._values.length > index, "EnumerableSet: index out of bounds");
        return set._values[index];
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint256(_at(set._inner, index)));
    }


    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

import "../GSN/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.
 */
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 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: MIT
pragma solidity ^0.6.0;

import "@openzeppelin/contracts/math/Math.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";
import "./depositary/AgregateDepositaryBalanceView.sol";
import "./StableToken.sol";

contract Issuer is AgregateDepositaryBalanceView {
    using Math for uint256;
    using SafeMath for uint256;

    /// @notice Stable token contract address.
    StableToken public stableToken;

    /// @notice Treasury contract address.
    address public treasury;

    /// @notice An event thats emitted when an Treasury contract transfered.
    event TransferTreasury(address newTreasury);

    /// @notice An event thats emitted when an stable token total supply rebalanced.
    event Rebalance();

    /**
     * @param _stableToken Stable token contract address.
     * @param _treasury Treasury contract address.
     */
    constructor(address _stableToken, address _treasury) public AgregateDepositaryBalanceView(StableToken(_stableToken).decimals(), 50) {
        stableToken = StableToken(_stableToken);
        treasury = _treasury;
    }

    /**
     * @notice Transfer Treasury contract to new address.
     * @param _treasury New address Treasury contract.
     */
    function changeTreasury(address _treasury) external onlyOwner {
        treasury = _treasury;
        emit TransferTreasury(treasury);
    }

    /**
     * @notice Change owner of Stable token contract.
     * @param _owner New owner address.
     */
    function changeStableTokenOwner(address _owner) external onlyOwner {
        stableToken.transferOwnership(_owner);
    }

    /**
     * @notice Rebalance stable token total supply by depositary balance. Mint stable token if depositary balance greater token total supply and burn otherwise.
     */
    function rebalance() external whenNotPaused {
        uint256 currentDepositaryBalance = this.balance();
        uint256 stableTokenTotalSupply = stableToken.totalSupply();

        if (stableTokenTotalSupply > currentDepositaryBalance) {
            uint256 burningBalance = stableToken.balanceOf(address(this));

            if (burningBalance > 0) {
                stableToken.burn(address(this), burningBalance.min(stableTokenTotalSupply.sub(currentDepositaryBalance)));
                emit Rebalance();
            }
        } else if (stableTokenTotalSupply < currentDepositaryBalance) {
            stableToken.mint(treasury, currentDepositaryBalance.sub(stableTokenTotalSupply));
            emit Rebalance();
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "./utils/AccessControl.sol";

contract StableToken is ERC20, AccessControl {
    /**
     * @param initialSupply Total supply.
     */
    constructor(uint256 initialSupply) public ERC20("Bond Appetite USD", "USDap") {
        _mint(_msgSender(), initialSupply);
    }

    /**
     * @param account Recipient of created token.
     * @param amount Amount of token to be created.
     */
    function mint(address account, uint256 amount) public onlyAllowed {
        _mint(account, amount);
    }

    /**
     * @param account Owner of removed token.
     * @param amount Amount of token to be removed.
     */
    function burn(address account, uint256 amount) public onlyAllowed {
        _burn(account, amount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

import "@openzeppelin/contracts/math/SafeMath.sol";
import "../utils/OwnablePausable.sol";
import "./IDepositaryBalanceView.sol";

contract AgregateDepositaryBalanceView is IDepositaryBalanceView, OwnablePausable {
    using SafeMath for uint256;

    /// @notice The number of depositaries in agregate.
    uint256 public maxSize;

    /// @notice Decimals balance.
    uint256 public override decimals;

    /// @notice Depositaries in agregate.
    IDepositaryBalanceView[] public depositaries;

    /// @dev Depositaries index.
    mapping(address => uint256) internal depositariesIndex;

    /// @notice An event thats emitted when an new depositary added to agregate.
    event DepositaryAdded(address depositary);

    /// @notice An event thats emitted when an depositary removed from agregate.
    event DepositaryRemoved(address depositary);

    /**
     * @param _decimals Decimals balance.
     * @param _maxSize Max number depositaries in agregate.
     */
    constructor(uint256 _decimals, uint256 _maxSize) public {
        decimals = _decimals;
        maxSize = _maxSize;
    }

    /**
     * @return Depositaries count of agregate.
     */
    function size() public view returns (uint256) {
        return depositaries.length;
    }

    /**
     * @notice Add depositary address to agregate.
     * @param depositary Added depositary address.
     */
    function addDepositary(address depositary) external onlyOwner {
        require(depositariesIndex[depositary] == 0, "AgregateDepositaryBalanceView::addDepositary: depositary already added");
        require(size() < maxSize, "AgregateDepositaryBalanceView::addDepositary: too many depositaries");

        depositaries.push(IDepositaryBalanceView(depositary));
        depositariesIndex[depositary] = size();
        emit DepositaryAdded(depositary);
    }

    /**
     * @notice Removed depositary address from agregate.
     * @param depositary Removed depositary address.
     */
    function removeDepositary(address depositary) external onlyOwner {
        uint256 valueIndex = depositariesIndex[depositary];
        require(valueIndex != 0, "AgregateDepositaryBalanceView::removeDepositary: depositary already removed");

        uint256 toDeleteIndex = valueIndex.sub(1);
        uint256 lastIndex = size().sub(1);
        IDepositaryBalanceView lastValue = depositaries[lastIndex];
        depositaries[toDeleteIndex] = lastValue;
        depositariesIndex[address(lastValue)] = toDeleteIndex.add(1);
        depositaries.pop();
        delete depositariesIndex[depositary];

        emit DepositaryRemoved(depositary);
    }

    /**
     * @param depositary Target depositary address.
     * @return True if target depositary is allowed.
     */
    function hasDepositary(address depositary) external view returns (bool) {
        return depositariesIndex[depositary] != 0;
    }

    /**
     * @return Allowed depositaries list.
     */
    function allowedDepositaries() external view returns (address[] memory) {
        address[] memory result = new address[](size());

        for (uint256 i = 0; i < size(); i++) {
            result[i] = address(depositaries[i]);
        }

        return result;
    }

    function balance() external view override returns (uint256) {
        uint256 result;

        for (uint256 i = 0; i < size(); i++) {
            uint256 depositaryBalance = depositaries[i].balance();
            uint256 depositaryDecimals = depositaries[i].decimals();
            uint256 decimalsPower = decimals.sub(depositaryDecimals);
            result = result.add(depositaryBalance.mul(10**decimalsPower));
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

/**
 * @title The Depositary Balance interface.
 */
interface IDepositaryBalanceView {
    /**
     * @notice Get decimals balance.
     * @return Decimals balance.
     */
    function decimals() external view returns(uint256);

    /**
     * @notice Get balance of depositary.
     * @return Balance of depositary.
     */
    function balance() external view returns(uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

interface IUniswapV2Router02 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        );

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETH(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountToken, uint256 amountETH);

    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETHWithPermit(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountToken, uint256 amountETH);

    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapTokensForExactTokens(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactETHForTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function swapTokensForExactETH(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapETHForExactTokens(
        uint256 amountOut,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function quote(
        uint256 amountA,
        uint256 reserveA,
        uint256 reserveB
    ) external pure returns (uint256 amountB);

    function getAmountOut(
        uint256 amountIn,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountOut);

    function getAmountIn(
        uint256 amountOut,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountIn);

    function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts);

    function getAmountsIn(uint256 amountOut, address[] calldata path) external view returns (uint256[] memory amounts);

    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountETH);

    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable;

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/EnumerableSet.sol";

contract AccessControl is Ownable {
    using EnumerableSet for EnumerableSet.AddressSet;

    /// @dev Allowed address list.
    EnumerableSet.AddressSet private allowed;

    /// @notice An event emitted when address allowed.
    event AccessAllowed(address member);

    /// @notice An event emitted when address denied.
    event AccessDenied(address member);

    /**
     * @notice Allow access.
     * @param member Target address.
     */
    function allowAccess(address member) external onlyOwner {
        require(!allowed.contains(member), "AccessControl::allowAccess: member already allowed");

        allowed.add(member);
        emit AccessAllowed(member);
    }

    /**
     * @notice Deny access.
     * @param member Target address.
     */
    function denyAccess(address member) external onlyOwner {
        require(allowed.contains(member), "AccessControl::denyAccess: member already denied");

        allowed.remove(member);
        emit AccessDenied(member);
    }

    /**
     * @return Allowed address list.
     */
    function accessList() external view returns (address[] memory) {
        address[] memory result = new address[](allowed.length());

        for (uint256 i = 0; i < allowed.length(); i++) {
            result[i] = allowed.at(i);
        }

        return result;
    }

    /**
     * @dev Throws if called by any account other than allowed.
     */
    modifier onlyAllowed() {
        require(allowed.contains(_msgSender()) || _msgSender() == owner(), "AccessControl: caller is not allowed");
        _;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Pausable.sol";

contract OwnablePausable is Ownable, Pausable {
    /// @notice Address that can pause a contract.
    address public pauser;

    /// @notice An event thats emitted when an pauser address changed.
    event PauserChanged(address newPauser);

    constructor() internal {
        pauser = owner();
    }

    /**
     * @notice Change pauser account.
     * @param newPauser Address of new pauser account.
     */
    function changePauser(address newPauser) external onlyOwner {
        pauser = newPauser;
        emit PauserChanged(pauser);
    }

    /**
     * @notice Triggers stopped state.
     */
    function pause() public virtual {
        require(pauser == _msgSender() || owner() == _msgSender(), "OwnablePausable::pause: only pauser and owner must pause contract");
        _pause();
    }

    /**
     * @notice Returns to normal state.
     */
    function unpause() public virtual {
        require(pauser == _msgSender() || owner() == _msgSender(), "OwnablePausable::unpause: only pauser and owner must unpause contract");
        _unpause();
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_issuer","type":"address"},{"internalType":"address","name":"_uniswapRouter","type":"address"},{"internalType":"address","name":"_caller","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"buy","type":"uint256"}],"name":"Buyback","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newCaller","type":"address"}],"name":"CallerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newIssuer","type":"address"}],"name":"IssuerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newPauser","type":"address"}],"name":"PauserChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newRouter","type":"address"}],"name":"UniswapRouterChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"balance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"buy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"caller","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_caller","type":"address"}],"name":"changeCaller","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_issuer","type":"address"}],"name":"changeIssuer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newPauser","type":"address"}],"name":"changePauser","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_uniswapRouter","type":"address"}],"name":"changeUniswapRouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"issuer","outputs":[{"internalType":"contract Issuer","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pauser","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract ERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uniswapRouter","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48000000000000000000000000679962cb53af1418f14991efc3c482bf6f241d5e0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d0000000000000000000000006eff5218f3ebb8a813539dba87bd5c7d4d2b3dcc

-----Decoded View---------------
Arg [0] : _token (address): 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
Arg [1] : _issuer (address): 0x679962cb53Af1418f14991eFc3C482bF6F241d5e
Arg [2] : _uniswapRouter (address): 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
Arg [3] : _caller (address): 0x6Eff5218f3EBB8A813539DBA87bD5c7D4d2B3dcc

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
Arg [1] : 000000000000000000000000679962cb53af1418f14991efc3c482bf6f241d5e
Arg [2] : 0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d
Arg [3] : 0000000000000000000000006eff5218f3ebb8a813539dba87bd5c7d4d2b3dcc