OPERON

{{
  "language": "Solidity",
  "sources": {
    "src/OPERON.sol": {
      "content": "/**
    X:          https://x.com/operon-network
    Telegram:   https://t.me/operon-network
    Website:    https://operon-network.com/
    Docs:       
*/

// SPDX-License-Identifier: MIT

pragma solidity 0.8.30;

import "@openzeppelin/contracts/access/Ownable2Step.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {IUniswapV2Factory} from "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol";
import {IUniswapV2Router02} from "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol";


contract OPERON is Ownable2Step, ERC20 {
    address public constant ZERO_ADDRESS = address(0);
    address public constant DEAD_ADDRESS = address(0xdead);

    IUniswapV2Router02 public immutable uniswapV2Router;
    address public immutable uniswapV2Pair;

        

    address public marketingWallet;

    bool public isLimitsEnabled;
    bool public isTaxEnabled;
    bool private _inSwapBack;
    bool public isLaunched;
    uint256 public launchedAt;

    uint256 public lastSwapBackExecutionBlock;
    uint256 public swapBackDelay = 3;

    uint256 public constant MAX_FEES = 5;
    uint256 private maxSupply = 100_000_000 ether;
    uint256 public swapTokensAtAmount = 500_000 ether;

    uint256 public maxWallet;

    uint256 public buyTax;
    uint256 public sellTax;

    mapping(address => bool) public isExcludedFromFees;
    mapping(address => bool) public isExcludedFromLimits;
    mapping(address => bool) public automatedMarketMakerPairs;

    event Launch();
    event EthReceived(address payer, uint256 amount);
    event SetMarketingWallet(address newWallet, address oldWallet);
    event SetLimitsEnabled(bool status);
    event SetTaxesEnabled(bool status);
    event SetMaxBuy(uint256 amount);
    event SetMaxSell(uint256 amount);
    event SetMaxWallet(uint256 amount);
    event SetSwapTokensAtAmount(uint256 newValue, uint256 oldValue);
    event SetSwapTokensDelay(uint256 newValue, uint256 oldValue);
    event SetBuyTaxes(uint256 newValue, uint256 oldValue);
    event SetSellTaxes(uint256 newValue, uint256 oldValue);
    event ExcludeFromFees(address account, bool isExcluded);
    event ExcludeFromLimits(address account, bool isExcluded);
    event SetBots(address account, bool isExcluded);
    event SetAutomatedMarketMakerPair(address pair, bool value);
    event WithdrawStuckTokens(address token, uint256 amount);

    error AlreadyLaunched();
    error InvalidAddress();
    error AddressZero();
    error CannotUpdateMainPair();
    error AddressDead();
    error AmountTooLow();
    error AmountTooHigh();
    error FeeTooHigh();
    error NoNativeTokens();
    error NoTokens();
    error FailedToWithdrawNativeTokens();
    error TransferDelay();
    error MaxBuyAmountExceed();
    error MaxSellAmountExceed();
    error MaxWalletAmountExceed();
    error NotLaunched();
    error AlreadySetToValue();

    modifier lockSwapBack() {
        _inSwapBack = true;
        _;
        _inSwapBack = false;
    }

    constructor() Ownable(msg.sender) ERC20("Operon Network", "OPERON") {
        address sender = msg.sender;

        uniswapV2Router = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );

        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
            address(this),
            uniswapV2Router.WETH()
        );

        _setAutomatedMarketMakerPair(uniswapV2Pair, true);

        marketingWallet = address(0x673BB9d7F161e49f3edBe8D3FC5313D8DCe9d2A9);
        maxWallet = maxSupply / 100;

        isLimitsEnabled = true;
        isTaxEnabled = true;

        buyTax = 5;
        sellTax = 5;

        _approve(address(this), address(uniswapV2Router), type(uint256).max);
        _excludeFromFees(address(this), true);
        _excludeFromFees(DEAD_ADDRESS, true);
        _excludeFromFees(sender, true);
        _excludeFromFees(marketingWallet, true);

        _excludeFromLimits(address(this), true);
        _excludeFromLimits(DEAD_ADDRESS, true);
        _excludeFromLimits(sender, true);
        _excludeFromLimits(marketingWallet, true);

        _mint(sender, maxSupply);
    }

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

    receive() external payable {
        emit EthReceived(msg.sender, msg.value);
    }

    fallback() external payable {}

    function launch() external onlyOwner {
        require(!isLaunched, AlreadyLaunched());
        isLaunched = true;
        launchedAt = block.number;
        emit Launch();
    }

    function setMarketingWallet(address _marketingWallet) external onlyOwner {
        require(_marketingWallet != ZERO_ADDRESS, AddressZero());
        require(_marketingWallet != DEAD_ADDRESS, AddressDead());
        address oldWallet = marketingWallet;
        marketingWallet = _marketingWallet;
        _excludeFromFees(marketingWallet, true);
        _excludeFromLimits(marketingWallet, true);
        emit SetMarketingWallet(marketingWallet, oldWallet);
    }

    function setLimitsEnabled(bool value) external onlyOwner {
        require(isLimitsEnabled != value, AlreadySetToValue());
        isLimitsEnabled = value;
        emit SetLimitsEnabled(value);
    }

    function setTaxesEnabled(bool value) external onlyOwner {
        require(isTaxEnabled != value, AlreadySetToValue());
        isTaxEnabled = value;
        emit SetTaxesEnabled(value);
    }

    function setMaxWallet(uint256 amount) external onlyOwner {
        require(amount != maxWallet, AlreadySetToValue());
        amount = amount * 1 ether;
        require(amount  >= ((totalSupply() * 1) / 1000), AmountTooLow());
        require(amount  <= totalSupply(), AmountTooHigh());
        maxWallet = amount;
        emit SetMaxWallet(maxWallet);
    }
    
    function setSwapTokensAtAmount(uint256 amount) external onlyOwner {
        require(amount != swapTokensAtAmount, AlreadySetToValue());
        uint256 _totalSupply = totalSupply();
        amount = amount * 1 ether;
        require(amount >= (_totalSupply * 1) / 1000000, AmountTooLow());
        require(amount <= (_totalSupply * 10) / 1000, AmountTooHigh());
        uint256 oldValue = swapTokensAtAmount;
        swapTokensAtAmount = amount;
        emit SetSwapTokensAtAmount(amount, oldValue);
    }

    function setSwapTokensDelay(uint256 blocks) external onlyOwner {
        require(blocks != swapBackDelay, AlreadySetToValue());
        require(blocks > 0, AmountTooLow());
        require(blocks <= 50, AmountTooHigh());
        
        uint256 oldValue = swapBackDelay;
        swapBackDelay = blocks;
        emit SetSwapTokensDelay(blocks, oldValue);
    }

    function setBuyTaxes(uint256 _buyTax) external onlyOwner {
        require(buyTax != _buyTax, AlreadySetToValue());
        require(_buyTax <= MAX_FEES, FeeTooHigh());
        uint256 oldValue = buyTax;
        buyTax = _buyTax;
        emit SetBuyTaxes(_buyTax, oldValue);
    }

    function setSellTaxes(uint256 _sellTax) external onlyOwner {
        require(sellTax != _sellTax, AlreadySetToValue());
        require(_sellTax <= MAX_FEES, FeeTooHigh());
        uint256 oldValue = sellTax;
        sellTax = _sellTax;
        emit SetSellTaxes(_sellTax, oldValue);
    }

    function excludeFromFees(address account, bool value) external onlyOwner {
        require(account != ZERO_ADDRESS, AddressZero());
        require(isExcludedFromFees[account] != value, AlreadySetToValue());
        _excludeFromFees(account, value);
    }

    function isAddressExcludedFromFees(address account) external view returns (bool) {
        return isExcludedFromFees[account];
    }

    function excludeFromLimits(address account, bool value) external onlyOwner {
        require(account != ZERO_ADDRESS, AddressZero());
        require(isExcludedFromLimits[account] != value, AlreadySetToValue());
        _excludeFromLimits(account, value);
    }

    function isAddressExcludedFromLimits(address account) external view returns (bool) {
        return isExcludedFromLimits[account];
    }

    function setAutomatedMarketMakerPair(address pair, bool value) external onlyOwner {
        require(pair != ZERO_ADDRESS, AddressZero());
        require(pair != uniswapV2Pair, CannotUpdateMainPair());
        require(automatedMarketMakerPairs[pair] != value, AlreadySetToValue());
        
        _setAutomatedMarketMakerPair(pair, value);
    }

    function isAddressAutomatedMarketMakerPair(address account) external view returns (bool) {
        return automatedMarketMakerPairs[account];
    }

    function withdrawStuckTokens(address _token) external onlyOwner {
        address sender = msg.sender;
        uint256 amount;
        if (_token == ZERO_ADDRESS) {
            bool success;
            amount = address(this).balance;
            require(amount > 0, NoNativeTokens());
            (success, ) = address(sender).call{value: amount}("");
            require(success, FailedToWithdrawNativeTokens());
        } else {
            amount = IERC20(_token).balanceOf(address(this));
            require(amount > 0, NoTokens());
            require(IERC20(_token).transfer(msg.sender, amount) ,  "Withdraw Stuck Tokens transfer failed");
        }
        emit WithdrawStuckTokens(_token, amount);
    }

     function withdrawEth() external onlyOwner {
        address sender = msg.sender;
        uint256 balance = address(this).balance;
        if (balance == 0) {
            revert("No ETH to withdraw");
        }
        (bool sent, ) = sender.call{value: balance}("");
        require(sent, "ETH Withdraw Failed");
    }

    function _transferOwnership(address newOwner) internal virtual override {
        address oldOwner = owner();
        if (oldOwner != ZERO_ADDRESS) {
            _excludeFromFees(oldOwner, false);
            _excludeFromLimits(oldOwner, false);
        }
        _excludeFromFees(newOwner, true);
        _excludeFromLimits(newOwner, true);
        super._transferOwnership(newOwner);
    }

    function _update( address from, address to, uint256 amount ) internal virtual override {
        require(
            isLaunched ||
                isExcludedFromLimits[from] ||
                isExcludedFromLimits[to],
            NotLaunched()
        );

        bool limits = isLimitsEnabled && !_inSwapBack && !isExcludedFromLimits[to] && !automatedMarketMakerPairs[to];
        if (limits) {
            if (
                from != owner() &&
                to != owner() &&
                to != ZERO_ADDRESS &&
                to != DEAD_ADDRESS
            ) {     
                    uint256 _maxWallet = _calculateMaxWallet();
                    require(
                        amount + balanceOf(to) <= _maxWallet,
                        MaxWalletAmountExceed()
                    );
                }
        }

        bool takeFee = isTaxEnabled &&
            !_inSwapBack &&
            !(isExcludedFromFees[from] || isExcludedFromFees[to]);

        if (!takeFee) {
            super._update(from, to, amount);
            return;
        }

        if (takeFee) {
            uint256 fees = 0;
            if (automatedMarketMakerPairs[to]) {
                uint256 _sellTax = _calculateSellTax();
                if(_sellTax > 0) {
                    fees = (amount * _sellTax) / 100;
                }
            } else if (automatedMarketMakerPairs[from]) {
                uint256 _buyTax = _calculateBuyTax();
                if(_buyTax > 0) {
                    fees = (amount * _buyTax) / 100;
                }
            } else if (
                !automatedMarketMakerPairs[to] &&
                !automatedMarketMakerPairs[from]
            ) {
                uint256 _transferTax = _calculateTransferTax();
                if(_transferTax > 0) {
                    fees = (amount * _transferTax) / 100;
                }
            }

            if (fees > 0) {
                amount -= fees;
                super._update(from, address(this), fees);
            }
        }

        uint256 blockNumber = block.number; 
        uint256 balance = balanceOf(address(this));
        bool shouldSwap = balance >= swapTokensAtAmount;
        if (takeFee && !automatedMarketMakerPairs[from] && shouldSwap) {
            if (blockNumber > lastSwapBackExecutionBlock + swapBackDelay) {
                _swapBack(balance);
                lastSwapBackExecutionBlock = blockNumber;
            }
        }

        super._update(from, to, amount);
    }

    function forceSwapBack(uint256 amount) external onlyOwner {
        require(amount > 0, AmountTooLow());

        _swapBack(amount * 1 ether);
    }

    function _swapBack(uint256 balance) internal virtual lockSwapBack {
        bool success;
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        uint256 maxSwapAmount = swapTokensAtAmount;

        if (balance > maxSwapAmount) {
            balance = maxSwapAmount;
        }

        uint256 ethBalanceBeforeSwap = address(this).balance;

        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            balance,
            0,
            path,
            address(this),
            block.timestamp
        );

        uint256 ethBalanceAfterSwap = address(this).balance - ethBalanceBeforeSwap;
        if(ethBalanceAfterSwap > 0) {
            (success, ) = address(marketingWallet).call{value: ethBalanceAfterSwap}(
                ""
            );
            require(success, "ETH transfer failed");
        }
    }

    function _calculateBuyTax() internal view returns (uint256) {
        require(isLaunched, NotLaunched());
        if(!isTaxEnabled) {
            return 0;
        }

        uint256 blocksFromLaunch = block.number - launchedAt;
        uint256 ramp = (blocksFromLaunch / 25) * 5 ; //decrease 5% every 25 blocks

        if(ramp > 25) {
            return buyTax;
        }

        return 30 - ramp;
    }

    function _calculateSellTax() internal view returns (uint256) {
        require(isLaunched, NotLaunched());
        if(!isTaxEnabled) {
            return 0;
        }

        uint256 blocksFromLaunch = block.number - launchedAt;
        uint256 ramp = (blocksFromLaunch / 35) * 5 ; //decrease 5% every 35 blocks

        if(ramp > 25) {
            return sellTax;
        }

        return 30 - ramp;
    }

    function _calculateTransferTax() internal view returns (uint256) {
        require(isLaunched, NotLaunched());
        if(!isTaxEnabled) {
            return 0;
        }

        uint256 blocksFromLaunch = block.number - launchedAt;
        uint256 ramp = blocksFromLaunch / 10; // decrease 1%  every 10 blocks

        if(ramp > 15) {
            return 0;
        }

        return 15 - ramp;
    }

        function _calculateMaxWallet() internal view returns (uint256) {
        require(isLaunched, NotLaunched());
        if(!isLimitsEnabled) {
            return totalSupply();
        }

        uint256 blocksFromLaunch = block.number - launchedAt;
        uint256 ramp = blocksFromLaunch / 10; // increase every 10 blocks


        if(ramp > 9) {
            return maxWallet;
        }

        return (totalSupply() / 1000) * (1 + ramp) ;
    }

     /// Get current buy tax for a transaction
    function getCurrentBuyTax() external view returns (uint256) {
        return _calculateBuyTax();
    }

    /// Get current sell tax for a transaction
    function getCurrentSellTax() external view returns (uint256) {
        return _calculateSellTax();
    }

    /// Get current transfer tax for a transaction
    function getCurrentTransferTax() external view returns (uint256) {
        return _calculateTransferTax();
    }

    /// Get current max wallet holding
    function getCurrentMaxWallet() external view returns (uint256) {
        return _calculateMaxWallet();
    }

    function _excludeFromFees(address account, bool value) internal virtual {
        isExcludedFromFees[account] = value;
        emit ExcludeFromFees(account, value);
    }

    function _excludeFromLimits(address account, bool value) internal virtual {
        isExcludedFromLimits[account] = value;
        emit ExcludeFromLimits(account, value);
    }

    function _setAutomatedMarketMakerPair(address pair, bool value) internal virtual {

        automatedMarketMakerPairs[pair] = value;
        emit SetAutomatedMarketMakerPair(pair, value);
    }
}"
    },
    "lib/openzeppelin-contracts/contracts/access/Ownable2Step.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.20;

import {Ownable} from "./Ownable.sol";

/**
 * @dev Contract module which provides access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * This extension of the {Ownable} contract includes a two-step mechanism to transfer
 * ownership, where the new owner must call {acceptOwnership} in order to replace the
 * old one. This can help prevent common mistakes, such as transfers of ownership to
 * incorrect accounts, or to contracts that are unable to interact with the
 * permission system.
 *
 * The initial owner is specified at deployment time in the constructor for `Ownable`. This
 * can later be changed with {transferOwnership} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2Step is Ownable {
    address private _pendingOwner;

    event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);

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

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     *
     * Setting `newOwner` to the zero address is allowed; this can be used to cancel an initiated ownership transfer.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        _pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        delete _pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        if (pendingOwner() != sender) {
            revert OwnableUnauthorizedAccount(sender);
        }
        _transferOwnership(sender);
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * 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 ERC-20
 * applications.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * Both 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 returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual 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 returns (uint8) {
        return 18;
    }

    /// @inheritdoc IERC20
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    /// @inheritdoc IERC20
    function balanceOf(address account) public view virtual 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 `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /// @inheritdoc IERC20
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` 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 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Skips emitting an {Approval} event indicating an allowance update. This is not
     * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
     *
     * 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 `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` 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.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` 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.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     *
     * ```solidity
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner`'s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance < type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}
"
    },
    "lib/v2-core/contracts/interfaces/IUniswapV2Factory.sol": {
      "content": "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;
}
"
    },
    "lib/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol": {
      "content": "pragma solidity >=0.6.2;

import './IUniswapV2Router01.sol';

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;
}
"
    },
    "lib/openzeppelin-contracts/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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);
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}
"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity >=0.6.2;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC-20 standard.
 */
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);
}
"
    },
    "lib/openzeppelin-contracts/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/interfaces/draft-IERC6093.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/draft-IERC6093.sol)
pragma solidity >=0.8.4;

/**
 * @dev Standard ERC-20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC-721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC-1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}
"
    },
    "lib/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol": {
      "content": "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);
}
"
    }
  },
  "settings": {
    "remappings": [
      "@openzeppelin/=lib/openzeppelin-contracts/",
      "@uniswap/=lib/",
      "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
      "forge-std/=lib/forge-std/src/",
      "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/",
      "openzeppelin-contracts/=lib/openzeppelin-contracts/",
      "v2-core/=lib/v2-core/contracts/",
      "v2-periphery/=lib/v2-periphery/contracts/"
    ],
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "metadata": {
      "useLiteralContent": false,
      "bytecodeHash": "ipfs",
      "appendCBOR": true
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "evmVersion": "prague",
    "viaIR": false
  }
}}