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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import "./Registry.sol";
import "./interfaces/IUserRegistry.sol";
import "./Claimer.sol";

contract UserRegistry is Registry, IUserRegistry {
    uint256 public constant REDEMPTION_ADDRESS_COUNT = 0x100000;
    bytes32 public constant IS_BLOCKLISTED = "IS_BLOCKLISTED";
    bytes32 public constant KYC_AML_VERIFIED = "KYC_AML_VERIFIED";
    bytes32 public constant CAN_BURN = "CAN_BURN";
    bytes32 public constant USER_REDEEM_ADDRESS = "USER_REDEEM_ADDRESS";
    bytes32 public constant REDEEM_ADDRESS_USER = "REDEEM_ADDRESS_USER";

    //address public token;

    mapping(address => string) private usersId;
    mapping(string => address) private usersById;

    uint256 private redemptionAddressCount;

    uint256 public minBurnBound;
    uint256 public maxBurnBound;

    struct User {
        address account;
        string id;
        address redeemAddress;
        bool blocked;
        bool KYC; // solhint-disable-line var-name-mixedcase
        bool canBurn;
    }

    event RegisterNewUser(
        address indexed account,
        address indexed redeemAddress
    );

    event UserKycVerified(address indexed account);

    event UserKycUnverified(address indexed account);

    event EnableRedeemAddress(address indexed account);

    event DisableRedeemAddress(address indexed account);

    event BlockAccount(address indexed account);

    event UnblockAccount(address indexed account);

    event MinBurnBound(uint256 minBurn);

    event MaxBurnBound(uint256 minBurn);

    constructor(
        //address _token,
        uint256 _minBurnBound,
        uint256 _maxBurnBound
    ) {
        require(_minBurnBound <= _maxBurnBound, "min bigger than max");
        //token = _token;
        minBurnBound = _minBurnBound;
        maxBurnBound = _maxBurnBound;
    }

    // function setToken(address _token) public onlyOwner {
    //     token = _token;
    // }

    function setMinBurnBound(uint256 _minBurnBound) public onlyOwner {
        require(_minBurnBound <= maxBurnBound, "min bigger than max");
        minBurnBound = _minBurnBound;

        emit MinBurnBound(_minBurnBound);
    }

    function setMaxBurnBound(uint256 _maxBurnBound) public onlyOwner {
        require(minBurnBound <= _maxBurnBound, "min bigger than max");
        maxBurnBound = _maxBurnBound;

        emit MaxBurnBound(_maxBurnBound);
    }

    /**
     * @dev Adds a new user in the registry.
     *      Sets {REDEEM_ADDRESS_USER} attribute for redeemAddress as `_account`.
     *      Sets {USER_REDEEM_ADDRESS} attribute for `_account` as redeemAddress.
     *
     * Emits a {RegisterNewUser} event.
     *
     * Requirements:
     *
     * - `_account` should not be a registered as user.
     * - number of redeem address should not be greater than max availables.
     */
    function registerNewUser(address _account, string calldata _id)
        public
        onlyOwner
    {
        require(!_isUser(_account), "user exist");
        require(usersById[_id] == address(0), "id already taken");

        redemptionAddressCount++;
        require(
            REDEMPTION_ADDRESS_COUNT > redemptionAddressCount,
            "max allowed users"
        );

        setAttribute(
            address(uint160(uint256(redemptionAddressCount))),
            REDEEM_ADDRESS_USER,
            uint256(uint160(_account))
        );

        setAttribute(_account, USER_REDEEM_ADDRESS, redemptionAddressCount);

        usersId[_account] = _id;
        usersById[_id] = _account;

        emit RegisterNewUser(
            _account,
            address(uint160(uint256(redemptionAddressCount)))
        );
    }

    /**
     * @dev Gets user's data.
     *
     * Requirements:
     *
     * - the caller should be the owner.
     */
    function getUser(address _account)
        public
        view
        onlyOwner
        returns (User memory user)
    {
        user.account = _account;
        user.id = usersId[_account];
        user.redeemAddress = getRedeemAddress(_account);
        user.blocked = _isBlocked(_account);
        user.KYC = _isKyced(_account);
        user.canBurn =
            getAttributeValue(getRedeemAddress(_account), CAN_BURN) == 1;
    }

    /**
     * @dev Gets user by its id.
     *
     * Requirements:
     *
     * - the caller should be the owner.
     */
    function getUserById(string calldata _id)
        public
        view
        onlyOwner
        returns (User memory user)
    {
        return getUser(usersById[_id]);
    }

    /**
     * @dev Sets user id.
     *
     * Requirements:
     *
     * - the caller should be the owner.
     * - `_account` should be a registered as user.
     * - `_id` should not be taken.
     */
    function setUserId(address _account, string calldata _id) public onlyOwner {
        require(_isUser(_account), "not a user");
        require(usersById[_id] == address(0), "id already taken");
        string memory prevId = usersId[_account];
        usersId[_account] = _id;
        usersById[_id] = _account;
        delete usersById[prevId];
    }

    /**
     * @dev Sets user as KYC verified.
     *
     * Emits a {UserKycVerified} event.
     *
     * Requirements:
     *
     * - `_account` should be a registered as user.
     */
    function userKycVerified(address _account) public onlyOwner {
        require(_isUser(_account), "not a user");

        setAttribute(_account, KYC_AML_VERIFIED, 1);

        emit UserKycVerified(_account);
    }

    /**
     * @dev Sets user as KYC un-verified.
     *
     * Emits a {UserKycVerified} event.
     *
     * Requirements:
     *
     * - `_account` should be a registered as user.
     */
    function userKycUnverified(address _account) public onlyOwner {
        require(_isUser(_account), "not a user");

        setAttribute(_account, KYC_AML_VERIFIED, 0);

        emit UserKycUnverified(_account);
    }

    /**
     * @dev Enables `_account` redeem address to burn.
     *
     * Emits a {EnableUserRedeemAddress} event.
     *
     * Requirements:
     *
     * - `_account` should be a registered as user.
     * - `_account` should be KYC verified.
     */
    function enableRedeemAddress(address _account) public onlyOwner {
        require(_isUser(_account), "not a user");
        require(_isKyced(_account), "user has not KYC");

        setAttribute(getRedeemAddress(_account), CAN_BURN, 1);

        emit EnableRedeemAddress(_account);
    }

    /**
     * @dev Disables `_account` redeem address to burn.
     *
     * Emits a {DisableRedeemAddress} event.
     *
     * Requirements:
     *
     * - `_account` should be a registered as user.
     */
    function disableRedeemAddress(address _account) public onlyOwner {
        require(_isUser(_account), "not a user");

        setAttribute(getRedeemAddress(_account), CAN_BURN, 0);

        emit DisableRedeemAddress(_account);
    }

    /**
     * @dev Sets user as KYC verified.
     *      Enables `_account` redeem address to burn.
     *
     * Emits a {UserKycVerified} event.
     * Emits a {EnableUserRedeemAddress} event.
     *
     * Requirements:
     *
     * - `_account` should be a registered as user.
     */
    function verifyKycEnableRedeem(address _account) public onlyOwner {
        require(_isUser(_account), "not a user");

        setAttribute(_account, KYC_AML_VERIFIED, 1);
        setAttribute(getRedeemAddress(_account), CAN_BURN, 1);

        emit UserKycVerified(_account);
        emit EnableRedeemAddress(getRedeemAddress(_account));
    }

    /**
     * @dev Sets user as KYC un-verified.
     *      Disables `_account` redeem address to burn.
     *
     * Emits a {UserKycVerified} event.
     * Emits a {v} event.
     *
     * Requirements:
     *
     * - `_account` should be a registered as user.
     */
    function unverifyKycDisableRedeem(address _account) public onlyOwner {
        require(_isUser(_account), "not a user");

        setAttribute(_account, KYC_AML_VERIFIED, 0);
        setAttribute(getRedeemAddress(_account), CAN_BURN, 0);

        emit UserKycUnverified(_account);
        emit DisableRedeemAddress(getRedeemAddress(_account));
    }

    /**
     * @dev Registers `_account` as blocked.
     *
     * Emits a {BlockAccount} event.
     *
     * Requirements:
     *
     * - `_account` should not be already blocked.
     */
    function blockAccount(address _account) public onlyOwner {
        require(!_isBlocked(_account), "user already blocked");
        setAttribute(_account, IS_BLOCKLISTED, 1);

        emit BlockAccount(_account);
    }

    /**
     * @dev Registers `_account` as un-blocked.
     *
     * Emits a {UnblockAccount} event.
     *
     * Requirements:
     *
     * - `_account` should be blocked.
     */
    function unblockAccount(address _account) public onlyOwner {
        require(_isBlocked(_account), "user not blocked");
        setAttribute(_account, IS_BLOCKLISTED, 0);

        emit UnblockAccount(_account);
    }

    /**
     * @dev Gets user's account associated to a given `_redeemAddress`.
     */
    function getUserByRedeemAddress(address _redeemAddress)
        public
        view
        returns (address)
    {
        return
            address(
                uint160(
                    uint256(
                        getAttributeValue(_redeemAddress, REDEEM_ADDRESS_USER)
                    )
                )
            );
    }

    /**
     * @dev Gets redeem address associated to a given `_account`
     */
    function getRedeemAddress(address _account) public view returns (address) {
        return
            address(
                uint160(
                    uint256(getAttributeValue(_account, USER_REDEEM_ADDRESS))
                )
            );
    }

    /**
     * @dev Checks if the given `_account` is a registered user.
     */
    function _isUser(address _account) internal view returns (bool) {
        return getAttributeValue(_account, USER_REDEEM_ADDRESS) != 0;
    }

    /**
     * @dev Checks if the given `_account` is blocked.
     */
    function _isBlocked(address _account) internal view returns (bool) {
        return getAttributeValue(_account, IS_BLOCKLISTED) == 1;
    }

    /**
     * @dev Checks if the given `_account` is KYC verified.
     */
    function _isKyced(address _account) internal view returns (bool) {
        return getAttributeValue(_account, KYC_AML_VERIFIED) != 0;
    }

    /**
     * @dev Checks if the given `_account` is a redeeming address.
     */
    function _isRedemptionAddress(address _account)
        internal
        pure
        returns (bool)
    {
        return uint256(uint160(_account)) < REDEMPTION_ADDRESS_COUNT;
    }

    /**
     * @dev Determines if it is redeeming.
     */
    function isRedeem(address, address _recipient)
        external
        view
        override
        
        returns (bool)
    {
        return _isRedemptionAddress(_recipient);
    }

    /**
     * @dev Determines if it is redeeming from.
     */
    function isRedeemFrom(
        address,
        address,
        address _recipient
    ) external view override  returns (bool) {
        return _isRedemptionAddress(_recipient);
    }

    /**
     * @dev Throws if any of `_from` or `_to` is blocklisted.
     */
    function canTransfer(address _from, address _to)
        external
        view
        override
        
    {
        require(!_isBlocked(_from), "blocklisted");
        require(!_isBlocked(_to), "blocklisted");
    }

    /**
     * @dev Throws if any of `_spender`, `_from` or `_to` is blocklisted.
     */
    function canTransferFrom(
        address _spender,
        address _from,
        address _to
    ) external view override  {
        require(!_isBlocked(_spender), "blocklisted");
        require(!_isBlocked(_from), "blocklisted");
        require(!_isBlocked(_to), "blocklisted");
    }

    /**
     * @dev Throws if any of `_to` is not KYC verified or blocklisted.
     */
    function canMint(address _to) external view override  {
        require(_isKyced(_to), "user has not KYC");
        require(!_isBlocked(_to), "blocklisted");
    }

    /**
     * @dev Throws if any of `_from` is not enabled to burn or `_amount` lower than minBurnBound.
     */
    function canBurn(address _from, uint256 _amount)
        external
        view
        override
        
    {
        require(getAttributeValue(getRedeemAddress(_from), CAN_BURN) == 1, "can not burn");
        require(_amount >= minBurnBound, "below min bound");
        require(_amount <= maxBurnBound, "above max bound");
    }

    /**
     * @dev Throws if any of `_account` is not blocked.
     */
    function canWipe(address _account) external view override  {
        require(_isBlocked(_account), "can not wipe");
    }

    /**
     * @dev Throws if called by any address other than the token.
     */
   
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

/**
 * @dev Interface of the Registry contract.
 */
interface IUserRegistry {
    function canTransfer(address _from, address _to) external view;

    function canTransferFrom(
        address _spender,
        address _from,
        address _to
    ) external view;

    function canMint(address _to) external view;

    function canBurn(address _from, uint256 _amount) external view;

    function canWipe(address _account) external view;

    function isRedeem(address _sender, address _recipient)
        external
        view
        returns (bool);

    function isRedeemFrom(
        address _caller,
        address _sender,
        address _recipient
    ) external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import "./Claimer.sol";

abstract contract Registry is Claimer {
    struct AttributeData {
        uint256 value;
        address updatedBy;
        uint256 timestamp;
    }

    mapping(address => mapping(bytes32 => AttributeData)) public attributes;

    event SetAttribute(
        address indexed who,
        bytes32 attribute,
        uint256 value,
        address indexed updatedBy
    );

    function setAttribute(
        address _who,
        bytes32 _attribute,
        uint256 _value
    ) public onlyOwner {
        attributes[_who][_attribute] = AttributeData(
            _value,
            msg.sender,
            block.timestamp
        );
        emit SetAttribute(_who, _attribute, _value, msg.sender);
    }

    function hasAttribute(address _who, bytes32 _attribute)
        public
        view
        returns (bool)
    {
        return attributes[_who][_attribute].value != 0;
    }

    function getAttribute(address _who, bytes32 _attribute)
        public
        view
        returns (AttributeData memory data)
    {
        data = attributes[_who][_attribute];
    }

    function getAttributeValue(address _who, bytes32 _attribute)
        public
        view
        returns (uint256)
    {
        return attributes[_who][_attribute].value;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

/**
 * @title Reclaimer
 * @author Protofire
 * @dev Allows owner to claim ERC20 tokens ot ETH sent to this contract.
 */
abstract contract Claimer is Ownable {
  using SafeERC20 for IERC20;

  /**
   * @dev send all token balance of an arbitrary erc20 token
   * in the contract to another address
   * @param token token to reclaim
   * @param _to address to send eth balance to
   */
  function claimToken(IERC20 token, address _to) external onlyOwner {
    uint256 balance = token.balanceOf(address(this));
    token.safeTransfer(_to, balance);
  }

  /**
   * @dev send all eth balance in the contract to another address
   * @param _to address to send eth balance to
   */
  function claimEther(address payable _to) external onlyOwner {
    require(_to != address(0), "transfer to the zero address");
    (bool sent, ) = _to.call{value: address(this).balance}("");
    require(sent, "Failed to send Ether");
  }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^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 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) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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://consensys.net/diligence/blog/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/v0.8.0/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");

        (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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

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

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    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'
        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));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // 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 cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^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() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(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");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

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0000000000000000000000000000000000000000000000000de0b6b3a764000000000000000000000000000000000000000000000000152d02c7e14af6800000

-----Decoded View---------------
Arg [0] : _minBurnBound (uint256): 1000000000000000000
Arg [1] : _maxBurnBound (uint256): 100000000000000000000000

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000de0b6b3a7640000
Arg [1] : 00000000000000000000000000000000000000000000152d02c7e14af6800000