Cryo Explorer Ethereum Mainnet

// SPDX-License-Identifier: Unlicensed

// 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-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: @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/access/Ownable.sol


// OpenZeppelin Contracts v4.4.1 (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 Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

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

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _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: @openzeppelin/contracts/token/ERC20/IERC20.sol


// OpenZeppelin Contracts v4.4.0 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

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

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// 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/token/ERC20/ERC20.sol


// OpenZeppelin Contracts (last updated v4.5.0) (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.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * 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}.
     *
     * 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.
     */
    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 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 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, _allowances[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 = _allowances[owner][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, 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:
     *
     * - `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;
        }
        _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;
        _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 Spend `amount` form the allowance of `owner` toward `spender`.
     *
     * 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: BRLv2.sol



pragma solidity ^0.8.9;





contract BullRunFeeHandler is Ownable {

    IUniswapV2Router02 public immutable uniswapV2Router;
    IERC20 public usdc;
    IERC20 public brlToken;

    address public marketingWallet;
    address public opsWallet;

    uint256 residualTokens;

    event SwapAndLiquify(uint256 tokensSwapped,uint256 ethReceived,uint256 tokensIntoLiqudity);

    constructor(address _brlToken, address _marketingWallet, address _opsWallet) {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

        uniswapV2Router = _uniswapV2Router;

        brlToken = IERC20(_brlToken);
        marketingWallet = _marketingWallet;
        opsWallet = _opsWallet;

        usdc = IERC20(0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48);
        IERC20(usdc).approve(address(_uniswapV2Router), type(uint256).max);

    }

    function processFees(uint256 liquidityTokens, uint256 opsTokens, uint256 marketingTokens) external onlyOwner {

        liquidityTokens += residualTokens;
        uint256 half = liquidityTokens / 2;
        uint256 otherHalf = liquidityTokens - half;

        uint256 total = half + opsTokens + marketingTokens;

        IERC20(brlToken).approve(address(uniswapV2Router), total + otherHalf);

        address[] memory path = new address[](2);
        path[0] = address(brlToken);
        path[1] = address(usdc);

        // make the swap
        uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
            total,
            0, // accept any amount of USDC
            path,
            address(this),
            block.timestamp
        );

        uint256 usdcBalance = IERC20(usdc).balanceOf(address(this));
        uint256 liquidity = usdcBalance * half / total;
        uint256 marketing = usdcBalance * marketingTokens / total;
        uint256 ops = usdcBalance - liquidity - marketing;

        (uint256 amountA,,) = uniswapV2Router.addLiquidity(
            address(brlToken),
            address(usdc),
            otherHalf,
            liquidity,
            0,
            0,
            address(0xdead),
            block.timestamp
        );
        residualTokens += (otherHalf - amountA);

        emit SwapAndLiquify(half, liquidity, otherHalf);

        usdc.transfer(marketingWallet, marketing);
        usdc.transfer(opsWallet, ops);

    }

    function updateMarketingWallet(address newWallet) external onlyOwner {
        marketingWallet = newWallet;
    }

    function updateOpsWallet(address newWallet) external onlyOwner {
        opsWallet = newWallet;
    }

}

error InvalidTransfer(address from, address to);
error TransferDelayEnabled(uint256 currentBlock, uint256 enabledBlock);
error ExceedsMaxTxAmount(uint256 attempt, uint256 max);
error ExceedsMaxWalletAmount(uint256 attempt, uint256 max);
error InvalidConfiguration();
error TradingNotEnabled();

contract BullRunV2 is ERC20, Ownable {

    mapping (address => bool) private _isExcludedFromFees;
    mapping (address => bool) public _isExcludedMaxTransactionAmount;
    mapping (address => bool) public _isExcludedFromDelay;
    mapping (address => bool) public _isBlacklisted;
    mapping (address => uint256) private _holderLastTxBlock;

    IUniswapV2Router02 public uniswapV2Router;
    address public immutable uniswapV2Pair;

    BullRunFeeHandler public brlFeeHandler;

    bool private swapping;
    bool public swapEnabled = true;
    bool public isTradingEnabled;

    uint256 public burnBuyFee = 100;
    uint256 public liquidityBuyFee = 400;
    uint256 public opsBuyFee = 300;
    uint256 public marketingBuyFee = 200;
    uint256 public totalBuyFees = 1000;

    uint256 public burnSellFee = 100;
    uint256 public liquiditySellFee = 500;
    uint256 public opsSellFee = 300;
    uint256 public marketingSellFee = 300;
    uint256 public totalSellFees = 1200;

    uint256 public burnTokens;
    uint256 public liquidityTokens;
    uint256 public opsTokens;
    uint256 public marketingTokens;

    uint256 public maxTransactionAmount = 5000 * 10**18; //0.5% of total supply
    uint256 public swapTokensAtAmount = 500 * 10**18; //0.05% of total supply
    uint256 public maxWallet = 10000 * 10**18; //1% of total supply

    uint256 public buyDelay = 2;
    uint256 public sellDelay = 5;
    uint256 public transferDelay = 1;

    event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event UpdateFeeHandler(address indexed newAddress, address indexed oldAddress);

    constructor(address _marketingWallet, address _opsWallet) ERC20("BullRunV2", "BRLV2") {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

        uniswapV2Router = _uniswapV2Router;

        address usdc = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;

        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), usdc);

        brlFeeHandler = new BullRunFeeHandler(address(this), _marketingWallet, _opsWallet);

        _isBlacklisted[address(0)] = true;

        _isExcludedFromFees[owner()] = true;
        _isExcludedFromFees[address(this)] = true;
        _isExcludedFromFees[address(brlFeeHandler)] = true;
        _isExcludedFromFees[address(0xdead)] = true;

        _isExcludedMaxTransactionAmount[owner()] = true;
        _isExcludedMaxTransactionAmount[address(this)] = true;
        _isExcludedMaxTransactionAmount[address(brlFeeHandler)] = true;
        _isExcludedMaxTransactionAmount[address(0xdead)] = true;

        _isExcludedMaxTransactionAmount[address(_uniswapV2Router)] = true;
        _isExcludedMaxTransactionAmount[address(uniswapV2Pair)] = true;

        _mint(owner(), 10**6 * 10**18);
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal override {
        if (_isBlacklisted[from] || _isBlacklisted[to]) {
            revert InvalidTransfer(from, to);
        }

        if(amount == 0) {
            super._transfer(from, to, 0);
            return;
        }

        if (
            from != owner() &&
            to != owner() &&
            to != address(0) &&
            to != address(0xdead) &&
            !swapping
        ){

            if (!isTradingEnabled) {
               revert TradingNotEnabled();
            }

            uint256 delayedUntil = _holderLastTxBlock[tx.origin];
            if (from == uniswapV2Pair) {
                delayedUntil += buyDelay;
            } else if (to == uniswapV2Pair) {
                delayedUntil += sellDelay;
            } else if (!_isExcludedFromDelay[from] && !_isExcludedFromDelay[to]) {
                delayedUntil += transferDelay;
            }

            if (delayedUntil > block.number) {
                revert TransferDelayEnabled(block.number, delayedUntil);
            }
            _holderLastTxBlock[tx.origin] = block.number;

            if (from == uniswapV2Pair && !_isExcludedMaxTransactionAmount[to]) { //buys
                if (amount > maxTransactionAmount) {
                    revert ExceedsMaxTxAmount(amount, maxTransactionAmount);
                }
                uint256 potentialBalance = amount + balanceOf(to);
                if (potentialBalance > maxWallet) {
                    revert ExceedsMaxWalletAmount(potentialBalance, maxWallet);
                }

            } else if (to == uniswapV2Pair && !_isExcludedMaxTransactionAmount[from]) { //sells
                if (amount > maxTransactionAmount) {
                    revert ExceedsMaxTxAmount(amount, maxTransactionAmount);
                }
            } else if(!_isExcludedMaxTransactionAmount[to]){
                uint256 potentialBalance = amount + balanceOf(to);
                if (potentialBalance > maxWallet) {
                    revert ExceedsMaxWalletAmount(potentialBalance, maxWallet);
                }
            }
        }

		    bool canSwap = balanceOf(address(brlFeeHandler)) >= swapTokensAtAmount;

        if (
            canSwap &&
            !swapping &&
            swapEnabled &&
            from != uniswapV2Pair &&
            !_isExcludedFromFees[from] &&
            !_isExcludedFromFees[to]
        ) {
            swapping = true;

            uint256 total = liquidityTokens + opsTokens + marketingTokens;
            uint256 liqToSwap = swapTokensAtAmount * liquidityTokens / total;
            uint256 opsToSwap = swapTokensAtAmount * opsTokens / total;
            uint256 marToSwap = swapTokensAtAmount * marketingTokens / total;

            brlFeeHandler.processFees(liqToSwap, opsToSwap, marToSwap);

            liquidityTokens -= liqToSwap;
            marketingTokens -= marToSwap;
            opsTokens -= opsToSwap;

            swapping = false;
        }

        if(!swapping && !_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
            uint256 fees;
            if (to == uniswapV2Pair && totalSellFees != 0) { //sell
                fees = amount * totalSellFees / 10000;
                burnTokens += fees * burnSellFee / totalSellFees;
                liquidityTokens += fees * liquiditySellFee / totalSellFees;
                opsTokens += fees * opsSellFee / totalSellFees;
                marketingTokens += fees * marketingSellFee / totalSellFees;
            } else if (from == uniswapV2Pair && totalBuyFees != 0) { //buy
                fees = amount * totalBuyFees / 10000;
                burnTokens += fees * burnBuyFee / totalBuyFees;
                liquidityTokens += fees * liquidityBuyFee / totalBuyFees;
                opsTokens += fees * opsBuyFee / totalBuyFees;
                marketingTokens += fees * marketingBuyFee / totalBuyFees;
            }
            if (fees > 0) {
                amount -= fees;
                super._transfer(from, address(brlFeeHandler), fees);
                super._burn(address(brlFeeHandler), burnTokens);
            }

        }

        super._transfer(from, to, amount);

    }

    function setBlacklist(address account, bool value) external onlyOwner {
        _isBlacklisted[account] = value;
    }

    function blacklistMany(address[] memory accounts) external onlyOwner {
        uint256 len = accounts.length;
        for (uint256 i = 0; i < len; i++) {
            _isBlacklisted[accounts[i]] = true;
        }
    }

    function updateDelayBlocks(uint256 _buy, uint256 _sell, uint256 _tx) external onlyOwner {
        buyDelay = _buy;
        sellDelay = _sell;
        transferDelay = _tx;
    }

    function setExcludedFromMaxTransaction(address account, bool value) public onlyOwner {
        _isExcludedMaxTransactionAmount[account] = value;
    }

    function excludeManyFromMaxTransaction(address[] memory accounts) public onlyOwner {
        uint256 len = accounts.length;
        for (uint256 i = 0; i < len; i++) {
            _isExcludedMaxTransactionAmount[accounts[i]] = true;
        }
    }

    function setExcludedFromFees(address account, bool value) public onlyOwner {
        _isExcludedFromFees[account] = value;
    }

    function excludeManyFromFees(address[] memory accounts) public onlyOwner {
        uint256 len = accounts.length;
        for (uint256 i = 0; i < len; i++) {
            _isExcludedFromFees[accounts[i]] = true;
        }
    }

    function setExcludedFromDelay(address account, bool value) public onlyOwner {
        _isExcludedFromDelay[account] = value;
    }

    function setSellFees(uint256 burn, uint256 liquidity, uint256 ops, uint256 marketing) external onlyOwner {
        uint256 total = burn + liquidity + ops + marketing;
        if (total > 2500) {
            revert InvalidConfiguration();
        }
        burnSellFee = burn;
        liquiditySellFee = liquidity;
        opsSellFee = ops;
        marketingSellFee = marketing;
        totalSellFees = total;
    }

    function setBuyFees(uint256 burn, uint256 liquidity, uint256 ops, uint256 marketing) external onlyOwner {
        uint256 total = burn + liquidity + ops + marketing;
        if (total > 2500) {
            revert InvalidConfiguration();
        }
        burnBuyFee = burn;
        liquidityBuyFee = liquidity;
        opsBuyFee = ops;
        marketingBuyFee = marketing;
        totalBuyFees = total;
    }

    function airdrop(address[] memory _user, uint256[] memory _amount) external onlyOwner {
        uint256 len = _user.length;
        if (len != _amount.length) {
            revert InvalidConfiguration();
        }
        for (uint256 i = 0; i < len; i++) {
            super._transfer(_msgSender(), _user[i], _amount[i]);
        }
    }

    function setSwapAtAmount(uint256 amount) external onlyOwner {
        swapTokensAtAmount = amount;
    }

    function setMaxTxAmount(uint256 _maxTxAmt) external onlyOwner() {
        maxTransactionAmount = _maxTxAmt;
    }

    function setMaxWalletSize(uint256 _maxWalletSize) external onlyOwner() {
        maxWallet = _maxWalletSize;
    }

    function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
        swapEnabled = _enabled;
        emit SwapAndLiquifyEnabledUpdated(_enabled);
    }

    function updateMarketingWallet(address newWallet) external onlyOwner {
        brlFeeHandler.updateMarketingWallet(newWallet);
    }

    function updateOpsWallet(address newWallet) external onlyOwner {
        brlFeeHandler.updateOpsWallet(newWallet);
    }

    function enableTrading() external onlyOwner {
        if (isTradingEnabled) {
            revert InvalidConfiguration();
        }
        isTradingEnabled = true;
    }

    function updateFeeHandler(address newAddress) public onlyOwner {
        if (newAddress == address(brlFeeHandler)) {
            revert InvalidConfiguration();
        }

        BullRunFeeHandler newFeeHandler = BullRunFeeHandler(newAddress);

        if (newFeeHandler.owner() != address(this)) {
            revert InvalidConfiguration();
        }

        setExcludedFromMaxTransaction(address(newFeeHandler), true);
        setExcludedFromFees(address(newFeeHandler), true);

        brlFeeHandler = newFeeHandler;

        emit UpdateFeeHandler(newAddress, address(brlFeeHandler));
    }

}