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0xbc3bcd1B39514E0eED3f64dE2E8E8c7fa09b33e8
 

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From
To
Mint182314552023-09-28 3:05:47328 days ago1695870347IN
0xbc3bcd1B...fa09b33e8
0 ETH0.000427266.73819646
Burn182308242023-09-28 0:58:47328 days ago1695862727IN
0xbc3bcd1B...fa09b33e8
0.0018 ETH0.000439217.09067959
Burn182304142023-09-27 23:36:47328 days ago1695857807IN
0xbc3bcd1B...fa09b33e8
0.0018 ETH0.000421097.36774604
Mint182303112023-09-27 23:15:59328 days ago1695856559IN
0xbc3bcd1B...fa09b33e8
0 ETH0.000480227.57203576
Mint182224812023-09-26 20:58:47330 days ago1695761927IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0007701216.63014014
Mint181761752023-09-20 9:21:47336 days ago1695201707IN
0xbc3bcd1B...fa09b33e8
0 ETH0.000509648.03741169
Mint181486422023-09-16 12:15:23340 days ago1694866523IN
0xbc3bcd1B...fa09b33e8
0 ETH0.000524488.27141119
Mint181301902023-09-13 21:54:59343 days ago1694642099IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0006395613.80726857
Mint181287912023-09-13 17:12:47343 days ago1694625167IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0009260819.99799586
Mint181079272023-09-10 19:01:35346 days ago1694372495IN
0xbc3bcd1B...fa09b33e8
0 ETH0.000590069.30576602
Mint181047972023-09-10 8:31:35346 days ago1694334695IN
0xbc3bcd1B...fa09b33e8
0 ETH0.000620169.78043682
Mint180984252023-09-09 11:06:11347 days ago1694257571IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0005328911.50737249
Mint180983002023-09-09 10:40:35347 days ago1694256035IN
0xbc3bcd1B...fa09b33e8
0 ETH0.000429699.27880154
Transfer Ownersh...180939892023-09-08 20:10:35348 days ago1694203835IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0008453218.32676929
Mint180882222023-09-08 0:47:47348 days ago1694134067IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0004927510.64067437
Mint180873012023-09-07 21:42:35349 days ago1694122955IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0012737927.51366039
Mint180868592023-09-07 20:13:35349 days ago1694117615IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0019323130.47962168
Mint180865752023-09-07 19:16:11349 days ago1694114171IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0020243443.71381998
Mint180865562023-09-07 19:12:23349 days ago1694113943IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0032908240.88737732
Set Controller180859012023-09-07 17:00:35349 days ago1694106035IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0013014327.32723535
Set Eth Token180859002023-09-07 17:00:23349 days ago1694106023IN
0xbc3bcd1B...fa09b33e8
0 ETH0.0006630725.24942393
0x60806040180858992023-09-07 17:00:11349 days ago1694106011IN
 Create: BridgeEth
0 ETH0.0316674722.72339005

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182308242023-09-28 0:58:47328 days ago1695862727
0xbc3bcd1B...fa09b33e8
0.0018 ETH
182304142023-09-27 23:36:47328 days ago1695857807
0xbc3bcd1B...fa09b33e8
0.0018 ETH
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Contract Source Code Verified (Exact Match)

Contract Name:
BridgeEth

Compiler Version
v0.8.17+commit.8df45f5f

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2023-09-07
*/

// File: @openzeppelin/contracts/utils/math/SafeMath.sol
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

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

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

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

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol

// 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);
}

// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol

// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @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);
}

// File: @openzeppelin/contracts/utils/Context.sol

// 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;
    }
}

// File: @openzeppelin/contracts/token/ERC20/ERC20.sol

// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;



/**
 * @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.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead 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, IERC20Metadata {
    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}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _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 default value returned by this function, unless
     * it's 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 18;
    }

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, 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}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, 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}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, 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) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, 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) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * 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:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, 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;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _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;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _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 Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - 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 {}
}

// File: contracts/tokens/TokenBase.sol

pragma solidity ^0.8.0;

contract TokenBase is ERC20 {
    address public admin;
    constructor(string memory name, string memory symbol) ERC20(name, symbol) {
        admin = msg.sender;
    }

    function updateAdmin(address newAdmin) external {
        require(msg.sender == admin, 'only admin');
        admin = newAdmin;
    }

    function mint(address to, uint amount) external {
        require(msg.sender == admin, 'only admin');
        _mint(to, amount);
    }
    
    function burn(address owner, uint amount) external {
        require(msg.sender == admin, 'only admin');
        _burn(owner, amount);
    }

    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        return true;
    }

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

}

// File: contracts/trustless/TreatBridge.sol

pragma solidity ^0.8.0;

contract TreatBridge  {
    using SafeMath for uint256;
    
    address public owner;
    address public pendingOwner;
    address public controller;


    TokenBase public token;
    uint256 public _balance;
    uint256 public _tax;
    uint256 public _taxMaxValue;
    uint128 public _fee;


    enum Step { Burn, Mint }

    event Transfer(
        address from,
        address to,
        uint amount,
        uint date,
        Step indexed step
    );

    event Deposit(
        address indexed account,
        uint256 amount
    );

    event Withdraw(
        address indexed account,
        uint256 amount
    );

    event ControllerChanged(address indexed previousBridge, address indexed newBridge);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    
    modifier onlyOwner() { require(msg.sender == owner, "BridgeBase: caller is not the owner"); _; }
    modifier onlyController() { require(msg.sender == controller, "TreatBridge: caller is not the bridge"); _; }

    constructor(address _token) {
        // Ensure that the _token address is not zero
        require(_token != address(0), "Bridge: token address cannot be 0");
        token = TokenBase(_token);
        
        owner = msg.sender;
        _tax = 0;
        _taxMaxValue = 0;
        
        // set _fee to 0.005 ether
        _fee = 5000000000000000;
    }

    function setFee(uint128 fee) external onlyOwner {
        _fee = fee;
    }

     function setController(address _bridge) external onlyOwner {
        controller = _bridge;
        emit ControllerChanged(controller, _bridge);
    }

    function transferOwnership(address _pendingOwner) external onlyOwner {
        pendingOwner = _pendingOwner;
    }

    function acceptOwnership() external {
        require(msg.sender == pendingOwner, "BridgeBase: caller is not the pending owner");
        emit OwnershipTransferred(owner, pendingOwner);
        owner = pendingOwner;
        pendingOwner = address(0);
    }

    function setToken (address _token) external onlyOwner {
        token = TokenBase(_token);
        
    }

    function setTax (uint256 tax) external onlyOwner {
        _tax = tax;
    }

    function setTaxMaxValue (uint256 taxMaxValue) external onlyOwner {
        _taxMaxValue = taxMaxValue;
    }

    function deposit(uint256 _amount) external onlyOwner {
       
        // Ensure bridge has allowance to transfer from user
        require(token.allowance(msg.sender, address(this)) >= _amount, "BridgeBase: insufficient allowance for deposit");
        require(token.balanceOf(msg.sender) >= _amount, "BridgeBase: insufficient balance for deposit");

        token.transferFrom(msg.sender, address(this), _amount);
        _balance = _balance.add(_amount);

        emit Deposit(msg.sender, _amount);

    }

    function withdraw(uint256 _amount) external onlyOwner {
        // Ensure bridge has enough token to mint
        require(token.balanceOf(address(this)) >= _amount, "BridgeBase: insufficient balance for withdraw");

        token.transfer(msg.sender, _amount);
        _balance = _balance.sub(_amount);

        emit Withdraw(msg.sender, _amount);
    }

    function unlock(address account, uint256 amount) virtual external onlyController returns (bool) {
        require(account != address(0), "Bridge: mint to the zero address");
        // Ensure bridge has enough token to mint
        require(token.balanceOf(address(this)) >= amount, "Bridge: insufficient balance for mint");



        _balance = _balance.sub(amount);
        token.transfer(account, amount);

       
        emit Transfer(
            address(this),
            account,
            amount,
            block.timestamp,
            Step.Mint
            
        );

        return true;
    }

    function lock(uint256 amount) payable external returns (bool) {
        require(token.allowance(msg.sender, address(this)) >= amount, "Bridge: insufficient allowance to bridge");
        require(token.balanceOf(msg.sender) >= amount, "Bridge: insufficient balance to bridge");
        // require _fee to be paid
        require(msg.value >= _fee, "Bridge: insufficient fee");


        
        token.transferFrom(msg.sender, address(this), amount);
        _balance = _balance.add(amount);

        payable(controller).transfer(_fee);

        // Calculate tax amount
        // Get the percentage value for the tax
        uint256 taxAmount = amount.mul(_tax).div(100);
        // Ensure tax amount is not greater than the max tax value
        if(taxAmount > _taxMaxValue) {
            taxAmount = _taxMaxValue;
        }

        uint256 amountAfterTax = amount.sub(taxAmount);

        emit Transfer(
            msg.sender,
            address(this),
            amountAfterTax,
            block.timestamp,
            Step.Burn
        );

        return true;
    }

    receive() external payable {}

}

// File: @openzeppelin/contracts/access/Ownable.sol

// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

/**
 * @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);
    }
}

// File: @uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol

pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

// File: @uniswap/v2-core/contracts/interfaces/IUniswapV2ERC20.sol

pragma solidity >=0.5.0;

interface IUniswapV2ERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}

// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol

pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol

pragma solidity >=0.6.2;

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

// File: contracts/tokens/EthTreatToken.sol


pragma solidity ^0.8.0;






contract TokenEth is ERC20, Ownable {
    using SafeMath for uint256;

    IUniswapV2Router02 public uniswapV2Router;
    address public uniswapV2Pair;

    uint8 public feeDecimals;
    uint32 public feePercentage;
    uint128 private minTokensBeforeSwap;

    address public treatBridge;
    address payable public treatTreasuryAddress;

    bool inSwapAndLiquify;
    bool swapAndLiquifyEnabled;

    address[] public nontaxedFromContracts;
    mapping(address => bool) public isAddressNotTaxedFrom;
    address[] public nontaxedToContracts;
    mapping(address => bool) public isAddressNotTaxedTo;

    event FeeUpdated(uint8 feeDecimals, uint32 feePercentage);
    event MinTokensBeforeSwapUpdated(uint128 minTokensBeforeSwap);
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqudity
    );
    event RouterChanged(address newRouter);
    event Taxing(address from, address to, uint256 amount);

    modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }

    modifier onlyBridge() {
        require(msg.sender == treatBridge, "Caller is not the bridge");
        _;
    }

    constructor(
        uint8 _feeDecimals,
        uint32 _feePercentage,
        uint128 _minTokensBeforeSwap,
        bool _swapAndLiquifyEnabled,
        address payable _treasuryAddress
    ) ERC20("Treat", "Treat") {        
        // Create a uniswap pair for this new token
        treatTreasuryAddress = _treasuryAddress;

        updateFee(_feeDecimals, _feePercentage);
        updateMinTokensBeforeSwap(_minTokensBeforeSwap);
        updateSwapAndLiquifyEnabled(_swapAndLiquifyEnabled);
    }

    function initializeUniswapFactory(IUniswapV2Router02 _uniswapV2Router) public onlyOwner {
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());

        // set the rest of the contract variables
        uniswapV2Router = _uniswapV2Router;

    }

    /*
        override the internal _transfer function so that we can
        take the fee, and conditionally do the swap + liquditiy
    */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal override {
        // is the token balance of this contract address over the min number of
        // tokens that we need to initiate a swap + liquidity lock?
        // also, don't get caught in a circular liquidity event.
        // also, don't swap & liquify if sender is uniswap pair.
        uint256 contractTokenBalance = balanceOf(address(this));
        bool overMinTokenBalance = contractTokenBalance >= minTokensBeforeSwap;
        if (
            overMinTokenBalance &&
            !inSwapAndLiquify &&
            msg.sender != uniswapV2Pair &&
            swapAndLiquifyEnabled
        ) {
            swapAndLiquify(contractTokenBalance);
        }

        // calculate the number of tokens to take as a fee
        uint256 tokensToLock = calculateTokenFee(
            amount,
            feeDecimals,
            feePercentage,
            from,
            to
        );

        // take the fee and send those tokens to this contract address
        // and then send the remainder of tokens to original recipient
        uint256 tokensToTransfer = amount.sub(tokensToLock);

        if(tokensToLock > 0) {
            super._transfer(from, address(this), tokensToLock.div(2));
            super._transfer(from, treatTreasuryAddress, tokensToLock.div(2));
        }
        super._transfer(from, to, tokensToTransfer);
    }

    function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
        // split the contract balance into halves
        uint256 half = contractTokenBalance.div(2);
        uint256 otherHalf = contractTokenBalance.sub(half);

        // capture the contract's current ETH balance.
        // this is so that we can capture exactly the amount of ETH that the
        // swap creates, and not make the liquidity event include any ETH that
        // has been manually sent to the contract
        uint256 initialBalance = address(this).balance;

        // swap tokens for ETH
        swapTokensForEth(half); // <- this breaks the ETH -> TreatDao swap when swap+liquify is triggered

        // how much ETH did we just swap into?
        uint256 newBalance = address(this).balance.sub(initialBalance);

        // add liquidity to pancakeswap
        addLiquidity(otherHalf, newBalance);

        emit SwapAndLiquify(half, newBalance, otherHalf);
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the pancakeswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // add the liquidity
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            address(this),
            block.timestamp
        );
    }

    function calculateTokenFee(
        uint256 _amount,
        uint8 _feeDecimals,
        uint32 _feePercentage,
        address _from,
        address _to
    ) public view returns (uint256 locked) {
        bool isTaxed = true;
        if(isAddressNotTaxedFrom[_from]) {
            isTaxed = false;
        }
        if(isAddressNotTaxedTo[_to]) {
            isTaxed = false;
        }
        if(!isTaxed) {
            return 0;
        }
        locked = _amount.mul(_feePercentage).div(
            10**(uint256(_feeDecimals) + 2)
        );
    }

    function addNonTaxedToContract(address nontaxed) public onlyOwner {
        bool isAddedAlready = false;
        for(uint i=0; i< nontaxedToContracts.length; i++) {
            if(nontaxedToContracts[i] == nontaxed) {
                isAddedAlready = true;
            }
        }
        require(!isAddedAlready, "Address is already not taxed when sending to");
        nontaxedToContracts.push(nontaxed);
        isAddressNotTaxedTo[nontaxed] = true;
    }

    function addNonTaxedFromContract(address nontaxed) public onlyOwner {
        bool isAddedAlready = false;
        for(uint i=0; i< nontaxedFromContracts.length; i++) {
            if(nontaxedFromContracts[i] == nontaxed) {
                isAddedAlready = true;
            }
        }
        require(!isAddedAlready, "Address is already not taxed when sending from");
        nontaxedFromContracts.push(nontaxed);
        isAddressNotTaxedFrom[nontaxed] = true;
    }

    function removeNonTaxedToContract(address taxed) public onlyOwner {
        for (uint256 i=0; i < nontaxedToContracts.length; i++) {
            if(nontaxedToContracts[i] == taxed) {
                nontaxedToContracts[i] = nontaxedToContracts[nontaxedToContracts.length - 1];
                nontaxedToContracts.pop();
                isAddressNotTaxedTo[taxed] = false;
            }
        }
    }

    function removeNonTaxedFromContract(address taxed) public onlyOwner {
        for (uint256 i=0; i < nontaxedFromContracts.length; i++) {
            if(nontaxedFromContracts[i] == taxed) {
                nontaxedFromContracts[i] = nontaxedFromContracts[nontaxedFromContracts.length - 1];
                nontaxedFromContracts.pop();
                isAddressNotTaxedFrom[taxed] = false;
            }
        }
    }

    receive() external payable {}

    /**
     *
     * @dev burn and mint functions
     */
    function mint(address account, uint256 amount) public onlyBridge {
        _mint(account, amount);
    }

    function burn(address account, uint256 amount) public onlyBridge {
        _burn(account, amount);
    }

    ///
    /// Ownership adjustments
    ///
    function setRouter(address _uniswapRouter) public onlyOwner {
        uniswapV2Router = IUniswapV2Router02(_uniswapRouter);
        emit RouterChanged(_uniswapRouter);
    }

    function setBridge(address _treatBridge) public onlyOwner {
        treatBridge = _treatBridge;
    }

    function updateFee(uint8 _feeDecimals, uint32 _feePercentage) public onlyOwner {
        feeDecimals = _feeDecimals;
        feePercentage = _feePercentage;
        emit FeeUpdated(_feeDecimals, _feePercentage);
    }

    function updateMinTokensBeforeSwap(uint128 _minTokensBeforeSwap) public onlyOwner {
        minTokensBeforeSwap = _minTokensBeforeSwap;
        emit MinTokensBeforeSwapUpdated(_minTokensBeforeSwap);
    }

    function updateSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
        swapAndLiquifyEnabled = _enabled;
        emit SwapAndLiquifyEnabledUpdated(_enabled);
    }
    
    function withdrawAll(address _tokenAddress, address payable _to) public onlyOwner {
        uint balance = IERC20(_tokenAddress).balanceOf(address(this));
        IERC20(_tokenAddress).transfer(_to, balance);
    }

    function withdrawTokens(address _token,address _to,uint256 _amount) public onlyOwner {
        IUniswapV2ERC20 token = IUniswapV2ERC20(_token);
        token.transfer(_to, _amount);
    }

    function withdrawEther(address payable _to, uint256 _amount) public onlyOwner {
        _to.transfer(_amount);
    }
    
    function harvestTreats(address payable _to) public onlyOwner {
        _to.transfer(address(this).balance);
    }

    function treasury(address payable _treatTreasuryAddress) public onlyOwner {
        require(_treatTreasuryAddress != address(0), "cannot switch treasury to the zero address");
        treatTreasuryAddress = _treatTreasuryAddress;
    }

    function setPair(address _pairAddress) public onlyOwner {
        uniswapV2Pair = _pairAddress;
    }


}

// File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol

// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity ^0.8.0;


/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        _spendAllowance(account, _msgSender(), amount);
        _burn(account, amount);
    }
}

// File: contracts/trustless/BridgeEth.sol

pragma solidity ^0.8.0;




contract BridgeEth is TreatBridge {
    using SafeMath for uint256;

    TokenEth public ethToken;
    
    constructor(address payable _token) TreatBridge(_token) {
        // Ensure that the _token address is not zero
        require(_token != address(0), "Bridge: token address cannot be 0");
        
        ethToken = TokenEth(_token);
        // set fee to 0.0018 ether
        _fee = 1800000000000000;
    }

    function setEthToken(address payable _token) external onlyOwner {
        // Ensure that the _token address is not zero
        require(_token != address(0), "Bridge: token address cannot be 0");
        
        ethToken = TokenEth(_token);
    }

    function burn(uint256 amount) payable external returns(bool) {
        require(amount > 0, "Bridge: amount must be greater than zero");
        require(msg.value >= _fee, "Bridge: insufficient fee");
        
        // transfer _fee to bridge controller
        payable(controller).transfer(_fee);
        ethToken.burn(msg.sender, amount);

        // Get the percentage value for the tax
        uint256 taxAmount = amount.mul(_tax).div(100);
        // Ensure tax amount is not greater than the max tax value
        if(taxAmount > _taxMaxValue) {
            taxAmount = _taxMaxValue;
        }

        uint256 amountAfterTax = amount.sub(taxAmount);
    
        emit Transfer(
            msg.sender,
            address(this),
            amountAfterTax,
            block.timestamp,
            Step.Burn
        );
        return true;
    }

    function mint(address account, uint256 amount) external onlyController returns(bool) {
        require(account != address(0), "Bridge: mint to the zero address");
        require(msg.sender != address(this), "Bridge: mint to the bridge");


        ethToken.mint(account, amount);
        emit Transfer(
            address(this),
            account,
            amount,
            block.timestamp,
            Step.Mint
        );
        return true;
    }


}

Contract Security Audit

Contract ABI

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payable","name":"_token","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousBridge","type":"address"},{"indexed":true,"internalType":"address","name":"newBridge","type":"address"}],"name":"ControllerChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","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":"from","type":"address"},{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"date","type":"uint256"},{"indexed":true,"internalType":"enum TreatBridge.Step","name":"step","type":"uint8"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"inputs":[],"name":"_balance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_fee","outputs":[{"internalType":"uint128","name":"","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_tax","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_taxMaxValue","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"controller","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"ethToken","outputs":[{"internalType":"contract TokenEth","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"lock","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_bridge","type":"address"}],"name":"setController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"_token","type":"address"}],"name":"setEthToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint128","name":"fee","type":"uint128"}],"name":"setFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tax","type":"uint256"}],"name":"setTax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"taxMaxValue","type":"uint256"}],"name":"setTaxMaxValue","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"setToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract TokenBase","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_pendingOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"unlock","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000bcee578e9b5a0f4d19e8d35e628faae293bbce80

-----Decoded View---------------
Arg [0] : _token (address): 0xbCEe578E9B5a0f4d19e8d35E628fAAE293BbcE80

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000bcee578e9b5a0f4d19e8d35e628faae293bbce80


Deployed Bytecode Sourcemap

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Swarm Source

ipfs://1f379719af910c1ea7c8db3dd309a0eeae29739b6f3e1cbb9955906dd2e6508d

Block Transaction Difficulty Gas Used Reward
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Block Uncle Number Difficulty Gas Used Reward
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Validator Index Block Amount
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Transaction Hash Block Value Eth2 PubKey Valid
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.