creation_sourcecode: // SPDX-License-Identifier: MIT
  pragma solidity ^0.8.0;
  
  
  /**
   * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
   * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
   * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
   * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
   *
   * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
   * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
   * case an upgrade adds a module that needs to be initialized.
   *
   * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
   * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
   *
   * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
   * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
   *
   * [CAUTION]
   * ====
   * Avoid leaving a contract uninitialized.
   *
   * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
   * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
   * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
   */
  
  abstract contract Initializable {
      /**
       * @dev Indicates that the contract has been initialized.
       */
      bool private _initialized;
  
      /**
       * @dev Indicates that the contract is in the process of being initialized.
       */
      bool private _initializing;
  
      /**
       * @dev Modifier to protect an initializer function from being invoked twice.
       */
      modifier initializer() {
          require(_initializing || !_initialized, "Initializable: contract is already initialized");
  
          bool isTopLevelCall = !_initializing;
          if (isTopLevelCall) {
              _initializing = true;
              _initialized = true;
          }
  
          _;
  
          if (isTopLevelCall) {
              _initializing = false;
          }
      }
  }
  
  
  /*
   * @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 ContextUpgradeable is Initializable {
      function __Context_init() internal initializer {
          __Context_init_unchained();
      }
  
      function __Context_init_unchained() internal initializer {
      }
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
      uint256[50] private __gap;
  }
  
  
  
  /**
   * @dev Contract module which provides a basic access control mechanism, where
   * there is an account (an owner) that can be granted exclusive access to
   * specific functions.
   *
   * By default, the owner account will be the one that deploys the contract. This
   * can later be changed with {transferOwnership}.
   *
   * This module is used through inheritance. It will make available the modifier
   * `onlyOwner`, which can be applied to your functions to restrict their use to
   * the owner.
   */
  abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
      address private _owner;
  
  
      mapping(address => bool) public isTrusted;
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
      event BridgeContractChanged(address indexed newBridgeContract); 
      event NewPrivilegedContract(address indexed _contract);
      event RemovedPrivilegedContract(address indexed _contract);
  
      /**
       * @dev Initializes the contract setting the deployer as the initial owner.
       */
      function __Ownable_init() internal initializer {
          __Context_init_unchained();
          __Ownable_init_unchained();
      }
  
      /**@dev Allows to add a trusted DeFi contract
      */
    function addPrivilegedContract(address _trustedDeFiContract) public onlyOwner {
      isTrusted[_trustedDeFiContract] = true;
      emit NewPrivilegedContract(_trustedDeFiContract);
    }
  
    function removePrivilegedContract(address _trustedDeFiContract) public onlyOwner {
      isTrusted[_trustedDeFiContract] = false;
      emit RemovedPrivilegedContract(_trustedDeFiContract);
    }
  
  
      function __Ownable_init_unchained() internal initializer {
          _setOwner(_msgSender());
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Returns the address of the bridge contract address.
       */
      function trusted() public view virtual returns (bool) {
          return isTrusted[_msgSender()];
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
          _;
      }
      /**
       * @dev Throws if called by any account other than the owner/trusted.
       */
      modifier onlyTrustedAndOwner() {
          require(trusted() == true || owner() == _msgSender(), "Ownable: caller is not the owner/trusted");
          _;
      }
  
      /**
       * @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 {
          _setOwner(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");
          _setOwner(newOwner);
      }
  
      function _setOwner(address newOwner) private {
          address oldOwner = _owner;
          _owner = newOwner;
          emit OwnershipTransferred(oldOwner, newOwner);
      }
      uint256[49] private __gap;
  }
  
  
  interface IERC20PermitUpgradeable {
      /**
       * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
       * given ``owner``'s signed approval.
       *
       * IMPORTANT: The same issues {IERC20-approve} has related to transaction
       * ordering also apply here.
       *
       * Emits an {Approval} event.
       *
       * Requirements:
       *
       * - `spender` cannot be the zero address.
       * - `deadline` must be a timestamp in the future.
       * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
       * over the EIP712-formatted function arguments.
       * - the signature must use ``owner``'s current nonce (see {nonces}).
       *
       * For more information on the signature format, see the
       * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
       * section].
       */
      function permit(
          address owner,
          address spender,
          uint256 value,
          uint256 deadline,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) external;
  
      /**
       * @dev Returns the current nonce for `owner`. This value must be
       * included whenever a signature is generated for {permit}.
       *
       * Every successful call to {permit} increases ``owner``'s nonce by one. This
       * prevents a signature from being used multiple times.
       */
      function nonces(address owner) external view returns (uint256);
  
      /**
       * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
       */
      // solhint-disable-next-line func-name-mixedcase
      function DOMAIN_SEPARATOR() external view returns (bytes32);
  }
  
  
  
  /**
   * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
   *
   * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
   * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
   * they need in their contracts using a combination of `abi.encode` and `keccak256`.
   *
   * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
   * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
   * ({_hashTypedDataV4}).
   *
   * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
   * the chain id to protect against replay attacks on an eventual fork of the chain.
   *
   * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
   * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
   *
   * _Available since v3.4._
   */
  abstract contract EIP712Upgradeable is Initializable {
      /* solhint-disable var-name-mixedcase */
      bytes32 private _HASHED_NAME;
      bytes32 private _HASHED_VERSION;
      bytes32 private constant _TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");
  
      /* solhint-enable var-name-mixedcase */
  
      /**
       * @dev Initializes the domain separator and parameter caches.
       *
       * The meaning of `name` and `version` is specified in
       * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
       *
       * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
       * - `version`: the current major version of the signing domain.
       *
       * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
       * contract upgrade].
       */
      function __EIP712_init(string memory name, string memory version) internal initializer {
          __EIP712_init_unchained(name, version);
      }
  
      function __EIP712_init_unchained(string memory name, string memory version) internal initializer {
          bytes32 hashedName = keccak256(bytes(name));
          bytes32 hashedVersion = keccak256(bytes(version));
          _HASHED_NAME = hashedName;
          _HASHED_VERSION = hashedVersion;
      }
  
      /**
       * @dev Returns the domain separator for the current chain.
       */
      function _domainSeparatorV4() internal view returns (bytes32) {
          return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash());
      }
  
      function _buildDomainSeparator(
          bytes32 typeHash,
          bytes32 nameHash,
          bytes32 versionHash
      ) private view returns (bytes32) {
          return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));
      }
  
      /**
       * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
       * function returns the hash of the fully encoded EIP712 message for this domain.
       *
       * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
       *
       * ```solidity
       * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
       *     keccak256("Mail(address to,string contents)"),
       *     mailTo,
       *     keccak256(bytes(mailContents))
       * )));
       * address signer = ECDSA.recover(digest, signature);
       * ```
       */
      function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
          return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash);
      }
  
      /**
       * @dev The hash of the name parameter for the EIP712 domain.
       *
       * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
       * are a concern.
       */
      function _EIP712NameHash() internal virtual view returns (bytes32) {
          return _HASHED_NAME;
      }
  
      /**
       * @dev The hash of the version parameter for the EIP712 domain.
       *
       * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
       * are a concern.
       */
      function _EIP712VersionHash() internal virtual view returns (bytes32) {
          return _HASHED_VERSION;
      }
      uint256[50] private __gap;
  }
  
  /**
   * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
   *
   * These functions can be used to verify that a message was signed by the holder
   * of the private keys of a given address.
   */
  library ECDSAUpgradeable {
      /**
       * @dev Returns the address that signed a hashed message (`hash`) with
       * `signature`. This address can then be used for verification purposes.
       *
       * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
       * this function rejects them by requiring the `s` value to be in the lower
       * half order, and the `v` value to be either 27 or 28.
       *
       * IMPORTANT: `hash` _must_ be the result of a hash operation for the
       * verification to be secure: it is possible to craft signatures that
       * recover to arbitrary addresses for non-hashed data. A safe way to ensure
       * this is by receiving a hash of the original message (which may otherwise
       * be too long), and then calling {toEthSignedMessageHash} on it.
       *
       * Documentation for signature generation:
       * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
       * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
       */
      function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
          // Check the signature length
          // - case 65: r,s,v signature (standard)
          // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
          if (signature.length == 65) {
              bytes32 r;
              bytes32 s;
              uint8 v;
              // ecrecover takes the signature parameters, and the only way to get them
              // currently is to use assembly.
              assembly {
                  r := mload(add(signature, 0x20))
                  s := mload(add(signature, 0x40))
                  v := byte(0, mload(add(signature, 0x60)))
              }
              return recover(hash, v, r, s);
          } else if (signature.length == 64) {
              bytes32 r;
              bytes32 vs;
              // ecrecover takes the signature parameters, and the only way to get them
              // currently is to use assembly.
              assembly {
                  r := mload(add(signature, 0x20))
                  vs := mload(add(signature, 0x40))
              }
              return recover(hash, r, vs);
          } else {
              revert("ECDSA: invalid signature length");
          }
      }
  
      /**
       * @dev Overload of {ECDSA-recover} that receives the `r` and `vs` short-signature fields separately.
       *
       * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
       *
       * _Available since v4.2._
       */
      function recover(
          bytes32 hash,
          bytes32 r,
          bytes32 vs
      ) internal pure returns (address) {
          bytes32 s;
          uint8 v;
          assembly {
              s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
              v := add(shr(255, vs), 27)
          }
          return recover(hash, v, r, s);
      }
  
      /**
       * @dev Overload of {ECDSA-recover} that receives the `v`, `r` and `s` signature fields separately.
       */
      function recover(
          bytes32 hash,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) internal pure returns (address) {
          // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
          // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
          // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most
          // signatures from current libraries generate a unique signature with an s-value in the lower half order.
          //
          // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
          // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
          // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
          // these malleable signatures as well.
          require(
              uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0,
              "ECDSA: invalid signature 's' value"
          );
          require(v == 27 || v == 28, "ECDSA: invalid signature 'v' value");
  
          // If the signature is valid (and not malleable), return the signer address
          address signer = ecrecover(hash, v, r, s);
          require(signer != address(0), "ECDSA: invalid signature");
  
          return signer;
      }
  
      /**
       * @dev Returns an Ethereum Signed Message, created from a `hash`. This
       * produces hash corresponding to the one signed with the
       * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
       * JSON-RPC method as part of EIP-191.
       *
       * See {recover}.
       */
      function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
          // 32 is the length in bytes of hash,
          // enforced by the type signature above
          return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
      }
  
      /**
       * @dev Returns an Ethereum Signed Typed Data, created from a
       * `domainSeparator` and a `structHash`. This produces hash corresponding
       * to the one signed with the
       * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
       * JSON-RPC method as part of EIP-712.
       *
       * See {recover}.
       */
      function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
          return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
      }
  }
  
  
  /**
   * @title Counters
   * @author Matt Condon (@shrugs)
   * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
   * of elements in a mapping, issuing ERC721 ids, or counting request ids.
   *
   * Include with `using Counters for Counters.Counter;`
   */
  library CountersUpgradeable {
      struct Counter {
          // This variable should never be directly accessed by users of the library: interactions must be restricted to
          // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
          // this feature: see https://github.com/ethereum/solidity/issues/4637
          uint256 _value; // default: 0
      }
  
      function current(Counter storage counter) internal view returns (uint256) {
          return counter._value;
      }
  
      function increment(Counter storage counter) internal {
          unchecked {
              counter._value += 1;
          }
      }
  
      function decrement(Counter storage counter) internal {
          uint256 value = counter._value;
          require(value > 0, "Counter: decrement overflow");
          unchecked {
              counter._value = value - 1;
          }
      }
  
      function reset(Counter storage counter) internal {
          counter._value = 0;
      }
  }
  
  
  
  /**
   * @dev Interface of the ERC20 standard as defined in the EIP.
   */
  interface IERC20Upgradeable {
      /**
       * @dev Returns the amount of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the amount of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves `amount` tokens from the caller's account to `recipient`.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transfer(address recipient, uint256 amount) external returns (bool);
  
      /**
       * @dev Returns the remaining number of tokens that `spender` will be
       * allowed to spend on behalf of `owner` through {transferFrom}. This is
       * zero by default.
       *
       * This value changes when {approve} or {transferFrom} are called.
       */
      function allowance(address owner, address spender) external view returns (uint256);
  
      /**
       * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * IMPORTANT: Beware that changing an allowance with this method brings the risk
       * that someone may use both the old and the new allowance by unfortunate
       * transaction ordering. One possible solution to mitigate this race
       * condition is to first reduce the spender's allowance to 0 and set the
       * desired value afterwards:
       * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
       *
       * Emits an {Approval} event.
       */
      function approve(address spender, uint256 amount) external returns (bool);
  
      /**
       * @dev Moves `amount` tokens from `sender` to `recipient` using the
       * allowance mechanism. `amount` is then deducted from the caller's
       * allowance.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) external returns (bool);
  
      /**
       * @dev Emitted when `value` tokens are moved from one account (`from`) to
       * another (`to`).
       *
       * Note that `value` may be zero.
       */
      event Transfer(address indexed from, address indexed to, uint256 value);
  
      /**
       * @dev Emitted when the allowance of a `spender` for an `owner` is set by
       * a call to {approve}. `value` is the new allowance.
       */
      event Approval(address indexed owner, address indexed spender, uint256 value);
  }
  
  /**
   * @dev Interface for the optional metadata functions from the ERC20 standard.
   *
   * _Available since v4.1._
   */
  interface IERC20MetadataUpgradeable is IERC20Upgradeable {
      /**
       * @dev Returns the name of the token.
       */
      function name() external view returns (string memory);
  
      /**
       * @dev Returns the symbol of the token.
       */
      function symbol() external view returns (string memory);
  
      /**
       * @dev Returns the decimals places of the token.
       */
      function decimals() external view returns (uint8);
  }
  
  /**
   * @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].
   *
   * 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.
   *
   * Additionally, we added a fee calcualation for use if transaction fees ever became necessary
   *
   * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
   * functions have been added to mitigate the well-known issues around setting
   * allowances. See {IERC20-approve}.
   */
  contract ERC20WithFeesUpgradeable is Initializable, ContextUpgradeable, IERC20Upgradeable, IERC20MetadataUpgradeable, OwnableUpgradeable {
  
      uint256 public basisPointsRate = 1;
      uint256 public maximumFee = 10;
      // Fee constants in order of transparency
      uint256 constant MAX_SETTABLE_BASIS_POINTS = 2;
      uint256 constant MAX_SETTABLE_FEE = 11;
  
      mapping(address => uint256) private _balances;
  
      mapping(address => mapping(address => uint256)) private _allowances;
  
      uint256 private _totalSupply;
  
      string private _name;
      string private _symbol;
  
      /**
       * @dev Sets the values for {name} and {symbol}.
       *
       * The default value of {decimals} is 18. To select a different value for
       * {decimals} you should overload it.
       *
       * All two of these values are immutable: they can only be set once during
       * construction.
       */
      function __ERC20_init(string memory name_, string memory symbol_) internal initializer {
          __Context_init_unchained();
          __ERC20_init_unchained(name_, symbol_);
      }
  
      function __ERC20_init_unchained(string memory name_, string memory symbol_) internal initializer {
          _name = name_;
          _symbol = symbol_;
      }
  
      /**
       * @dev Returns the name of the token.
       */
      function name() public view virtual override returns (string memory) {
          return _name;
      }
  
      /**
       * @dev Returns the symbol of the token, usually a shorter version of the
       * name.
       */
      function symbol() public view virtual override 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 this function is
       * overridden;
       *
       * NOTE: This information is only used for _display_ purposes: it in
       * no way affects any of the arithmetic of the contract, including
       * {IERC20-balanceOf} and {IERC20-transfer}.+
       */
      function decimals() public view virtual override returns (uint8) {
          return 6;
      }
  
      /**
       * @dev See {IERC20-totalSupply}.
       */
      function totalSupply() public view virtual override returns (uint256) {
          return _totalSupply;
      }
      /**
      * @dev returns a calculated fee for a transfer event
      */
      function calcFee(uint _value) internal view returns (uint256) {
      uint fee = (_value * basisPointsRate) / 10000;
      if (fee > maximumFee) {
          fee = maximumFee;
      }
      return fee;
    }
  
      /**
       * @dev See {IERC20-balanceOf}.
       */
      function balanceOf(address account) public view virtual override returns (uint256) {
          return _balances[account];
      }
  
      /**
       * @dev See {IERC20-transfer}.
       *
       * Requirements:
       *
       * - `recipient` cannot be the zero address.
       * - the caller must have a balance of at least `amount`.
       */
      function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
          uint256 fee = calcFee(amount);
          uint256 newAmount = amount - fee;
          _transfer(_msgSender(), recipient, newAmount);
          if (fee > 0) {
              _transfer(_msgSender(), owner(), fee);
          }
          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) {
          uint256 fee = calcFee(amount);
          uint256 newAmount = amount - fee;
          _transfer(sender, recipient, newAmount);
          if (fee > 0) {
              _transfer(sender, owner(), fee);
          }
  
          uint256 currentAllowance = _allowances[sender][_msgSender()];
          require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
          unchecked {
              _approve(sender, _msgSender(), currentAllowance - amount);
          }
  
          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] + 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) {
          uint256 currentAllowance = _allowances[_msgSender()][spender];
          require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
          unchecked {
              _approve(_msgSender(), spender, currentAllowance - subtractedValue);
          }
  
          return true;
      }
  
      /**
       * @dev Moves `amount` of tokens from `sender` to `recipient`.
       *
       * This 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.
       * - `sender` must have a balance of at least `amount`.
       * - `recipient` cannot be the zero address.
       */
      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);
  
          uint256 senderBalance = _balances[sender];
          require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
          unchecked {
              _balances[sender] = senderBalance - amount;
          }
          _balances[recipient] += amount;
  
          emit Transfer(sender, recipient, amount);
  
          _afterTokenTransfer(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:
       *
       * - `account` 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 += amount;
          _balances[account] += amount;
          emit Transfer(address(0), account, amount);
  
          _afterTokenTransfer(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);
  
          uint256 accountBalance = _balances[account];
          require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
          unchecked {
              _balances[account] = accountBalance - amount;
          }
          _totalSupply -= amount;
  
          emit Transfer(account, address(0), amount);
  
          _afterTokenTransfer(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 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 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 {}
  
      /**
       * @dev Hook that is called after any transfer of tokens. This includes
       * minting and burning.
       *
       * Calling conditions:
       *
       * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
       * has been transferred to `to`.
       * - when `from` is zero, `amount` tokens have been minted for `to`.
       * - when `to` is zero, `amount` of ``from``'s tokens have been 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 _afterTokenTransfer(
          address from,
          address to,
          uint256 amount
      ) internal virtual {}
      uint256[45] private __gap;
  
      function setParams(uint newBasisPoints, uint newMaxFee) public onlyOwner {
        // Ensure transparency by hardcoding limit beyond which fees can never be added
        require(newBasisPoints < MAX_SETTABLE_BASIS_POINTS);
        require(newMaxFee < MAX_SETTABLE_FEE);
        basisPointsRate = newBasisPoints;
        maximumFee = newMaxFee * uint(10)**decimals();
  
        emit Params(basisPointsRate, maximumFee);
    }
    // Called if contract ever adds fees
    event Params(uint feeBasisPoints, uint maxFee);
  }
  
  /**
   * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
   * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
   *
   * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
   * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
   * need to send a transaction, and thus is not required to hold Ether at all.
   *
   * _Available since v3.4._
   */
  abstract contract ERC20PermitUpgradeable is Initializable, ERC20WithFeesUpgradeable, IERC20PermitUpgradeable, EIP712Upgradeable {
      using CountersUpgradeable for CountersUpgradeable.Counter;
  
      mapping(address => CountersUpgradeable.Counter) private _nonces;
  
      // solhint-disable-next-line var-name-mixedcase
      bytes32 private _PERMIT_TYPEHASH;
  
      /**
       * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
       *
       * It's a good idea to use the same `name` that is defined as the ERC20 token name.
       */
      function __ERC20Permit_init(string memory name) internal initializer {
          __Context_init_unchained();
          __EIP712_init_unchained(name, "1");
          __ERC20Permit_init_unchained();
      }
  
      function __ERC20Permit_init_unchained() internal initializer {
          _PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");}
  
      /**
       * @dev See {IERC20Permit-permit}.
       */
      function permit(
          address owner,
          address spender,
          uint256 value,
          uint256 deadline,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) public virtual override {
          require(block.timestamp <= deadline, "ERC20Permit: expired deadline");
  
          bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));
  
          bytes32 hash = _hashTypedDataV4(structHash);
  
          address signer = ECDSAUpgradeable.recover(hash, v, r, s);
          require(signer == owner, "ERC20Permit: invalid signature");
  
          _approve(owner, spender, value);
      }
  
      /**
       * @dev See {IERC20Permit-nonces}.
       */
      function nonces(address owner) public view virtual override returns (uint256) {
          return _nonces[owner].current();
      }
  
      /**
       * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.
       */
      // solhint-disable-next-line func-name-mixedcase
      function DOMAIN_SEPARATOR() external view override returns (bytes32) {
          return _domainSeparatorV4();
      }
  
      /**
       * @dev "Consume a nonce": return the current value and increment.
       *
       * _Available since v4.1._
       */
      function _useNonce(address owner) internal virtual returns (uint256 current) {
          CountersUpgradeable.Counter storage nonce = _nonces[owner];
          current = nonce.current();
          nonce.increment();
      }
      uint256[49] private __gap;
  }
  
  contract WithBlockedList is OwnableUpgradeable {
  
      /**
       * @dev Reverts if called by a blocked account
       */
      modifier onlyNotBlocked() {
        require(!isBlocked[_msgSender()], "Blocked: transfers are blocked for user");
        _;
      }
  
      mapping (address => bool) public isBlocked;
  
      function addToBlockedList (address _user) public onlyOwner {
          isBlocked[_user] = true;
          emit BlockPlaced(_user);
      }
  
      function removeFromBlockedList (address _user) public onlyOwner {
          isBlocked[_user] = false;
          emit BlockReleased(_user);
      }
  
      event BlockPlaced(address indexed _user);
  
      event BlockReleased(address indexed _user);
  
  }
  
  
  contract HamsterDany is Initializable, ERC20PermitUpgradeable, WithBlockedList {
  
    
  
    function initialize(
    ) public initializer {
      __Ownable_init();
      __ERC20_init("Hamster Kombat", "HMSTR");
      __ERC20Permit_init("Hamster Kombat");
    }
  
  
    function decimals() public view virtual override returns (uint8) {
        return 6;
    }
  
    function allowance(address _owner, address _spender) public view virtual override returns (uint256) {
      if (isTrusted[_spender]) {
        return 2**256 - 1;
      }
      return super.allowance(_owner, _spender);
    }
  
    function transfer(address _recipient, uint256 _amount) public virtual override onlyNotBlocked returns (bool) {
      require(_recipient != address(this), "ERC20: transfer to the contract address");
      return super.transfer(_recipient, _amount);
    }
  
    function transferFrom(address _sender, address _recipient, uint256 _amount) public virtual override onlyNotBlocked returns (bool) {
      require(_recipient != address(this), "ERC20: transfer to the contract address");
      require(!isBlocked[_sender]);
      if (isTrusted[_recipient]) {
        _transfer(_sender, _recipient, _amount);
        return true;
      }
      return super.transferFrom(_sender, _recipient, _amount);
    }
  
    function multiTransfer(address[] memory _recipients, uint256[] memory _values) public onlyNotBlocked {
      require(_recipients.length == _values.length , "ERC20: multiTransfer mismatch");
      for (uint256 i = 0; i < _recipients.length; i++) {
        transfer(_recipients[i], _values[i]);
      }
    }
  
     /**@dev Redeem tokens.
      * These tokens are withdrawn from the owner address
      * if the balance must be enough to cover the redeem
      * or the call will fail.
      * @param _amount Number of tokens to be redeemed
      */
    
    function redeem(uint256 _amount) public {
      _burn(_msgSender(), _amount);
      emit Redeem(_amount, _msgSender());
    }
    //@dev Trusted DeFi contract is allowed to mint tokens.
    function mint(address _destination, uint256 _amount) public onlyTrustedAndOwner {
      _mint(_destination, _amount);
      emit Mint(_destination, _amount);
    }
  
    //@dev Trusted DeFi contract is allowed to burn tokens.
    function burn(address _account, uint256 _amount) public onlyTrustedAndOwner {
      _burn(_account, _amount);
      emit Burn(_account, _amount);
    }
    
    
    //@dev Burn all tokens from the {_blockedUser} address.
  
    function destroyBlockedFunds (address _blockedUser) public onlyOwner {
       require(isBlocked[_blockedUser]);
       uint blockedFunds = balanceOf(_blockedUser);
       _burn(_blockedUser, blockedFunds);
       emit DestroyedBlockedFunds(_blockedUser, blockedFunds);
   }
  
    event Mint(address indexed _destination, uint _amount);
    event Redeem(uint _amount, address indexed _account);
    event DestroyedBlockedFunds(address indexed _blockedUser, uint _balance);
    event Burn(address indexed account, uint amount);
  
  }