Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
// import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
interface IMainnetUSDT {
// interface ISepoliaUSDT {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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


contract Tonnel {  

    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }


    
    address private _owner;

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }

    // ISepoliaUSDT sepoliaUSDT;
    IMainnetUSDT mainnetUSDT;
    address public treasuryWallet;
    uint256 public minimumAmount = 1_000_000; // minimum of 1 USDT

    error MinimumAmountNotMet();
    error DepositFail();
    error OtherFails();

    event Deposit(address indexed from, uint256 amount, string destination, uint256 time);
    event DepositOnly(address indexed from, uint256 amount, uint256 time);

    function setTreasuryWallet(address _newWallet) external onlyOwner {
        treasuryWallet = _newWallet;
    }

    function setMinimumAmount(uint256 _newMinimum) external onlyOwner {
        minimumAmount = _newMinimum;
    }

    constructor(
        // address _sepoliaUSDTAddress,
        // address _treasuryWallet
    ) {
        // sepoliaUSDT = ISepoliaUSDT(0x7169D38820dfd117C3FA1f22a697dBA58d90BA06);
        mainnetUSDT = IMainnetUSDT(0xdAC17F958D2ee523a2206206994597C13D831ec7);
        treasuryWallet = 0xBadCE2c9dd0D33C746c5529CD3d3651b208350Be;
        
        // sepoliaUSDT = ISepoliaUSDT(_sepoliaUSDTAddress);
        // mainnetUSDT = IMainnetUSDT(_sepoliaUSDTAddress);
        // treasuryWallet = _treasuryWallet;
        _transferOwnership(_msgSender());
    }

    /**
     * @notice key function
     * @param _amount USDT amount in full decimal point representation. FE to do conversion?
     */
    /*
    function deposit(uint256 _amount, string memory _tonAddress) external {
        if (_amount < minimumAmount) {
            revert MinimumAmountNotMet();
        }
    
        uint256 allowance = mainnetUSDT.allowance(msg.sender, address(this));
        require(allowance >= _amount, "Token allowance too low");

        uint256 balance = mainnetUSDT.balanceOf(msg.sender);
        require(balance >= _amount, "Token balance too low");
        
        // if (!sepoliaUSDT.transferFrom(msg.sender, treasuryWallet, _amount)) {
        //     revert DepositFail();
        // }

        bool success = mainnetUSDT.transferFrom(msg.sender, treasuryWallet, _amount); 
        if (!success) {
            revert DepositFail();
        }

        emit Deposit(msg.sender, _amount, _tonAddress, block.timestamp);
    }
    */

    function depositOnly(uint256 _amount) external {
        if (_amount < minimumAmount) {
            revert MinimumAmountNotMet();
        }
    
        uint256 allowance = mainnetUSDT.allowance(msg.sender, address(this));
        require(allowance >= _amount, "Token allowance too low");

        uint256 balance = mainnetUSDT.balanceOf(msg.sender);
        require(balance >= _amount, "Token balance too low");
        
        // if (!sepoliaUSDT.transferFrom(msg.sender, treasuryWallet, _amount)) {
        //     revert DepositFail();
        // }

        bool success = mainnetUSDT.transferFrom(msg.sender, treasuryWallet, _amount); 
        if (!success) {
            revert DepositFail();
        }

        emit DepositOnly(msg.sender, _amount, block.timestamp);
    }


}

{
  "remappings": [
    "src/=src/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "forge-std/=lib/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": true,
  "libraries": {}
}

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