// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

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;
    }
}

interface IERC20 {
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, uint256 value) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 value) external returns (bool);
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

interface IERC20Errors {
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
    error ERC20InvalidSender(address sender);
    error ERC20InvalidReceiver(address receiver);
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
    error ERC20InvalidApprover(address approver);
    error ERC20InvalidSpender(address spender);
}

abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 private _totalSupply;
    string private _name;
    string private _symbol;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

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

    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    function transfer(address to, uint256 value) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

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

    function approve(address spender, uint256 value) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    function transferFrom(address from, address to, uint256 value) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    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);
    }

    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                _totalSupply -= value;
            }
        } else {
            unchecked {
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    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);
        }
    }

    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);
            }
        }
    }
}

abstract contract ERC20Burnable is Context, ERC20 {
    function burn(uint256 value) public virtual {
        _burn(_msgSender(), value);
    }

    function burnFrom(address account, uint256 value) public virtual {
        _spendAllowance(account, _msgSender(), value);
        _burn(account, value);
    }
}

abstract contract Ownable is Context {
    address private _owner;

    error OwnableUnauthorizedAccount(address account);
    error OwnableInvalidOwner(address owner);

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

    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

contract HYPNOSToken is ERC20, ERC20Burnable, Ownable {
    uint256 private constant initialSupply = 500000000000 * 10**18; // 500 billion tokens
    bool private _antiWhaleEnabled = true;
    uint256 private _maxTxAmount;
    uint256 private _maxWalletAmount;
    bool private _walletLimitEnabled = true;
    bool private _initialLiquidityAdded = false;

    mapping(address => bool) private _isExempted;

    constructor() ERC20("HYPNOS", "HYPNOS") Ownable(msg.sender) {
        _mint(msg.sender, initialSupply);
        _maxTxAmount = initialSupply / 20; // 5% of the total supply
        _maxWalletAmount = initialSupply / 20; // 5% of the total supply
    }

    function decimals() public view virtual override returns (uint8) {
        return 18; // Default decimals for ERC20 tokens
    }

    function addExemptedAddress(address account) external onlyOwner {
        _isExempted[account] = true;
    }

    function removeExemptedAddress(address account) external onlyOwner {
        _isExempted[account] = false;
    }

    function isExempted(address account) external view returns (bool) {
        return _isExempted[account];
    }

    function addInitialLiquidity(address liquidityPool, uint256 amount) external onlyOwner {
        require(!_initialLiquidityAdded, "Initial liquidity has already been added.");
        _initialLiquidityAdded = true;
        _transfer(msg.sender, liquidityPool, amount);
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        if (_antiWhaleEnabled && !_isExempted[msg.sender] && !_isExempted[recipient]) {
            require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
        }
        if (_walletLimitEnabled && !_isExempted[recipient]) {
            require(balanceOf(recipient) + amount <= _maxWalletAmount, "Recipient wallet balance exceeds the maxWalletAmount.");
        }
        return super.transfer(recipient, amount);
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        if (_antiWhaleEnabled && !_isExempted[sender] && !_isExempted[recipient]) {
            require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
        }
        if (_walletLimitEnabled && !_isExempted[recipient]) {
            require(balanceOf(recipient) + amount <= _maxWalletAmount, "Recipient wallet balance exceeds the maxWalletAmount.");
        }
        return super.transferFrom(sender, recipient, amount);
    }

    function enableWhaleControl() external onlyOwner {
        _antiWhaleEnabled = true;
    }

    function disableWhaleControl() external onlyOwner {
        _antiWhaleEnabled = false;
    }

    function enableWalletLimit() external onlyOwner {
        _walletLimitEnabled = true;
    }

    function disableWalletLimit() external onlyOwner {
        _walletLimitEnabled = false;
    }

    function renounceOwnership() public override onlyOwner {
        require(!_antiWhaleEnabled, "Cannot renounce ownership while anti-whale is enabled.");
        super.renounceOwnership();
    }

    function abandonOwnership() external onlyOwner {
        transferOwnership(address(0));
    }
}

{
  "compilationTarget": {
    "HYPNOSToken.sol": "HYPNOSToken"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}