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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract GnomeWrapper {
    IERC20 public gnomeToken = IERC20(0x42069d11A2CC72388a2e06210921E839Cfbd3280);
    IERC20 public gnomeWhormHoleToken = IERC20(0xa29F2f60aA589B2dac72e72b7CFed51bfbA52862);

    uint256 public wrapFee = 100; // Fee for wrapping in basis points (1% = 100)
    uint256 public unwrapFee = 5000; // Fee for unwrapping in basis points (1% = 100)

    address public owner;

    modifier onlyOwner() {
        require(msg.sender == owner, "Not the owner");
        _;
    }

    event Wrap(address indexed account, uint256 amount, uint256 fee);
    event Unwrap(address indexed account, uint256 amount, uint256 fee);

    constructor() {
        owner = msg.sender;
    }

    function setGnomeToken(address _gnomeToken) external onlyOwner {
        gnomeToken = IERC20(_gnomeToken);
    }

    function setGnomeWhormHoleToken(address _gnomeWhormHoleToken) external onlyOwner {
        gnomeWhormHoleToken = IERC20(_gnomeWhormHoleToken);
    }

    function setWrapFee(uint256 _wrapFee) external onlyOwner {
        require(_wrapFee <= 10000, "Wrap fee must be less than or equal to 100%");
        wrapFee = _wrapFee;
    }

    function setUnwrapFee(uint256 _unwrapFee) external onlyOwner {
        require(_unwrapFee <= 10000, "Unwrap fee must be less than or equal to 100%");
        unwrapFee = _unwrapFee;
    }

    function wrap(uint256 amount) external {
        require(address(gnomeToken) != address(0), "GnomeToken address not set");
        require(address(gnomeWhormHoleToken) != address(0), "GnomeWhormHoleToken address not set");

        uint256 feeAmount = (amount * wrapFee) / 10000;
        uint256 transferAmount = amount - feeAmount;
        transferAmount *= 10 ** 9;
        require(gnomeToken.transferFrom(msg.sender, address(this), amount * 10 ** 18), "Transfer failed");
        gnomeWhormHoleToken.transfer(msg.sender, transferAmount);
        emit Wrap(msg.sender, amount, feeAmount);
    }

    function unwrap(uint256 amount) external {
        require(address(gnomeToken) != address(0), "GnomeToken address not set");
        require(address(gnomeWhormHoleToken) != address(0), "GnomeWhormHoleToken address not set");

        uint256 feeAmount = (amount * unwrapFee) / 10000;
        uint256 transferAmount = amount - feeAmount;
        transferAmount *= 10 ** 18;
        require(gnomeWhormHoleToken.transferFrom(msg.sender, address(this), amount * 10 ** 9), "Transfer failed");
        gnomeToken.transfer(msg.sender, transferAmount);
        emit Unwrap(msg.sender, amount, feeAmount);
    }

    // Owner functions for emergency recovery
    function recoverERC20(address token, uint256 amount) external onlyOwner {
        IERC20(token).transfer(owner, amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 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);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"fee","type":"uint256"}],"name":"Unwrap","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"fee","type":"uint256"}],"name":"Wrap","type":"event"},{"inputs":[],"name":"gnomeToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"gnomeWhormHoleToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"recoverERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_gnomeToken","type":"address"}],"name":"setGnomeToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_gnomeWhormHoleToken","type":"address"}],"name":"setGnomeWhormHoleToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_unwrapFee","type":"uint256"}],"name":"setUnwrapFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_wrapFee","type":"uint256"}],"name":"setWrapFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"unwrap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unwrapFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"wrap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"wrapFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

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