OYSTERS Finance

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.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.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 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 ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these 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 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 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 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:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, 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}.
     *
     * NOTE: If `amount` 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 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, 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}.
     *
     * 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 `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @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) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, 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) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `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.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @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;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _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;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _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 Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - 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 (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @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 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);
}

// 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 ^0.8.19;

interface DividendPayingTokenInterface {
    /// @notice View the amount of dividend in wei that an address can withdraw.
    /// @param _owner The address of a token holder.
    /// @return The amount of dividend in wei that `_owner` can withdraw.
    function dividendOf(address _owner) external view returns (uint256);

    /// @notice Withdraws the ether distributed to the sender.
    /// @dev SHOULD transfer `dividendOf(msg.sender)` wei to `msg.sender`, and `dividendOf(msg.sender)` SHOULD be 0 after the transfer.
    ///  MUST emit a `DividendWithdrawn` event if the amount of ether transferred is greater than 0.
    function withdrawDividend() external;

    /// @notice View the amount of dividend in wei that an address can withdraw.
    /// @param _owner The address of a token holder.
    /// @return The amount of dividend in wei that `_owner` can withdraw.
    function withdrawableDividendOf(
        address _owner
    ) external view returns (uint256);

    /// @notice View the amount of dividend in wei that an address has withdrawn.
    /// @param _owner The address of a token holder.
    /// @return The amount of dividend in wei that `_owner` has withdrawn.
    function withdrawnDividendOf(
        address _owner
    ) external view returns (uint256);

    /// @notice View the amount of dividend in wei that an address has earned in total.
    /// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
    /// @param _owner The address of a token holder.
    /// @return The amount of dividend in wei that `_owner` has earned in total.
    function accumulativeDividendOf(
        address _owner
    ) external view returns (uint256);

    /// @dev This event MUST emit when ether is distributed to token holders.
    /// @param from The address which sends ether to this contract.
    /// @param weiAmount The amount of distributed ether in wei.
    event DividendsDistributed(address indexed from, uint256 weiAmount);

    /// @dev This event MUST emit when an address withdraws their dividend.
    /// @param to The address which withdraws ether from this contract.
    /// @param weiAmount The amount of withdrawn ether in wei.
    event DividendWithdrawn(address indexed to, uint256 weiAmount);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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 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);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import "./RewardTracker.sol";

/*
    Web: https://oysters.finance/
    X: https://x.com/oystersfinance
    TG: https://t.me/oystersfinance
*/

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB)
        external
        returns (address pair);
}

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    function factory() external pure returns (address);

    function WETH() external pure returns (address);
}

interface IWETH {
    function deposit() external payable;
}

contract OYSTERS is IERC20, Ownable {
    IUniswapV2Router02 public immutable UNISWAP_ROUTERV2 =
        IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
    string public name = "OYSTERS Finance";
    string public symbol = "OYSTER";
    bool public isBurning;
    DividendTracker public dividendTracker;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) private allowances;
    //new mapping
    mapping(address => bool) private _isExcludedFromFees;
    mapping(address => bool) public automatedMarketMakerPairs;
    mapping(address => bool) private _isExcludedFromMaxWallet;

    address public airdropAddress;
    address[200] private airdropEligibleAddresses;
    address public UniswapV2pair;
    address public airdrop_address_toList;
    address private treasuryAddress;

    uint256 private _totalSupply;
    uint256 public turn;
    uint256 public tx_n;
    uint256 private mint_pct;
    uint256 private burn_pct;
    uint256 public airdrop_pct;
    uint256 public treasury_pct;
    uint256 public airdropAddressCount;
    uint256 public minimum_for_airdrop;
    uint256 public onepct;
    uint256 public airdropLimit;
    uint256 public airdrop_threshold;
    uint256 public decimals = 18;
    uint256 public max_supply;
    uint256 public min_supply;
    uint256 private last_turnTime;
    uint256 private init_ceiling;
    uint256 private initFloor;
    uint256 public swapTokensAtAmount;
    uint256 public maxWallet;
    uint256 public weth_reward_pct;
    bool private limitsEnabled;
    bool public firstrun;
    bool private swapping;
    bool private macro_contraction;
    bool public claimEnabled = true;
    bool public swapEnabled = false;
    constructor() {
        address _pair = IUniswapV2Factory(UNISWAP_ROUTERV2.factory())
            .createPair(address(this), UNISWAP_ROUTERV2.WETH());

        UniswapV2pair = _pair;
        dividendTracker = new DividendTracker(
            "OYSTER_Reward_Tracker",
            "OYSTER_Reward_Tracker",
            msg.sender
        );
        _setAutomatedMarketMakerPair(_pair, true);

        dividendTracker.updateTokenAddress(UNISWAP_ROUTERV2.WETH());

        dividendTracker.excludeFromDividends(address(dividendTracker), true);
        dividendTracker.excludeFromDividends(address(this), true);
        dividendTracker.excludeFromDividends(owner(), true);
        dividendTracker.excludeFromDividends(address(0xdead), true);
        dividendTracker.excludeFromDividends(address(0), true);
        dividendTracker.excludeFromDividends(address(UNISWAP_ROUTERV2), true);

        excludeFromMaxWallet(address(_pair), true);
        excludeFromMaxWallet(address(this), true);
        excludeFromMaxWallet(address(UNISWAP_ROUTERV2), true);
        excludeFromMaxWallet(address(dividendTracker), true);
        excludeFromMaxWallet(address(0xdead), true);

        excludeFromFees(owner(), true);
        excludeFromFees(address(this), true);
        excludeFromFees(address(dividendTracker), true);
        excludeFromFees(address(0xdead), true);
        
        uint256 init_supply = 33333 * 10**decimals;
        min_supply = (122 * 10**decimals) / 10;
        max_supply = 66666 * 10**decimals;

        airdropAddress = msg.sender;
        treasuryAddress = 0x7062E0292B56839670EbCaDAf57d092d2CF67cdD;
        balanceOf[msg.sender] = init_supply;

        _totalSupply = init_supply;
        init_ceiling = max_supply;
        initFloor = min_supply;
        macro_contraction = true;
        turn = 0;
        last_turnTime = block.timestamp;
        isBurning = true;
        limitsEnabled = true;
        tx_n = 0;
        uint256 deciCalc = 10**decimals;

        // 0.5% burning, minting
        mint_pct = (50 * deciCalc) / 10000;
        burn_pct = (50 * deciCalc) / 10000;
        airdrop_pct = (50 * deciCalc) / 10000; // 1% for airdrops
        weth_reward_pct = (200 * deciCalc) / 10000;
        treasury_pct = (200 * deciCalc) / 10000; // 2.5% fee
        airdropLimit = (1500 * deciCalc) / 10000;
        airdrop_threshold = (25 * deciCalc) / 10000;
        onepct = (100 * deciCalc) / 10000;
        swapTokensAtAmount = (_totalSupply * 9) / 10000;
        maxWallet = (_totalSupply * 2) / 100;

        airdropAddressCount = 1;
        minimum_for_airdrop = 0;
        firstrun = true;
        airdropEligibleAddresses[0] = airdropAddress;
        airdrop_address_toList = airdropAddress;

        emit Transfer(address(0), msg.sender, init_supply);
    }

    function updateFees(uint256 _treasuryFee) external onlyOwner {
        treasury_pct = (_treasuryFee * 10**decimals) / 10000;
    }

    function claimDividend() external {
        require(claimEnabled, "Claim not enabled");
        dividendTracker.processAccount(msg.sender);
    }

    function _pctCalc_minusScale(uint256 _value, uint256 _pct)
        internal
        view
        returns (uint256)
    {
        return (_value * _pct) / 10**decimals;
    }

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

    function allowance(address _owner, address _spender)
        external
        view
        virtual
        returns (uint256)
    {
        return allowances[_owner][_spender];
    }

    function burnRate() external view returns (uint256) {
        return burn_pct;
    }

    function mintRate() external view returns (uint256) {
        return mint_pct;
    }

    function showAirdropThreshold() external view returns (uint256) {
        return airdrop_threshold;
    }

    function showQualifiedAddresses()
        external
        view
        returns (address[200] memory)
    {
        return airdropEligibleAddresses;
    }

    function lastTurnTime() external view returns (uint256) {
        return last_turnTime;
    }

    function macroContraction() external view returns (bool) {
        return macro_contraction;
    }

    function _rateadj() internal returns (bool) {
        if (isBurning) {
            burn_pct += burn_pct / 10;
            mint_pct += mint_pct / 10;
            airdrop_pct += airdrop_pct / 10;
            treasury_pct += treasury_pct / 10;
        } else {
            burn_pct -= burn_pct / 10;
            mint_pct += mint_pct / 10;
            airdrop_pct -= airdrop_pct / 10;
            treasury_pct -= treasury_pct / 10;
        }

        if (burn_pct > onepct * 6) {
            burn_pct -= onepct * 2;
        }

        if (mint_pct > onepct * 6) {
            mint_pct -= onepct * 2;
        }

        if (airdrop_pct > onepct * 3) {
            airdrop_pct -= onepct;
        }

        if (treasury_pct > onepct * 3) {
            treasury_pct -= onepct;
        }

        if (
            burn_pct < onepct || mint_pct < onepct || airdrop_pct < onepct / 2
        ) {
            uint256 deciCalc = 10**decimals;
            mint_pct = (50 * deciCalc) / 10000;
            burn_pct = (50 * deciCalc) / 10000;
            airdrop_pct = (50 * deciCalc) / 10000;
            treasury_pct = (200 * deciCalc) / 10000;
            weth_reward_pct = (200 * deciCalc) / 10000;
        }
        return true;
    }

    function _airdrop() internal returns (bool) {
        uint256 onepct_supply = _pctCalc_minusScale(
            balanceOf[airdropAddress],
            onepct
        );
        uint256 split = 0;
        if (balanceOf[airdropAddress] <= onepct_supply) {
            split = balanceOf[airdropAddress] / 250;
        } else if (balanceOf[airdropAddress] > onepct_supply * 2) {
            split = balanceOf[airdropAddress] / 180;
        } else {
            split = balanceOf[airdropAddress] / 220;
        }

        if (balanceOf[airdropAddress] - split > 0) {
            balanceOf[airdropAddress] -= split;
            balanceOf[airdropEligibleAddresses[airdropAddressCount]] += split;

            emit Transfer(
                airdropAddress,
                airdropEligibleAddresses[airdropAddressCount],
                split
            );
        }

        return true;
    }

    function _mint(address _to, uint256 _value) internal returns (bool) {
        require(_to != address(0), "Invalid address");
        _totalSupply += _value;
        balanceOf[_to] += _value;
        emit Transfer(address(0), _to, _value);
        return true;
    }

    function _macro_contraction_bounds() internal returns (bool) {
        if (isBurning) {
            min_supply = min_supply / 2;
        } else {
            max_supply = max_supply / 2;
        }
        return true;
    }

    function _macro_expansion_bounds() internal returns (bool) {
        if (isBurning) {
            min_supply = min_supply * 2;
        } else {
            max_supply = max_supply * 2;
        }
        if (turn == 56) {
            max_supply = init_ceiling;
            min_supply = initFloor;
            turn = 0;
            macro_contraction = false;
        }
        return true;
    }

    function _turn() internal returns (bool) {
        turn += 1;
        if (turn == 1 && !firstrun) {
            uint256 deciCalc = 10**decimals;
            mint_pct = (50 * deciCalc) / 10000;
            mint_pct = (50 * deciCalc) / 10000;
            airdrop_pct = (50 * deciCalc) / 10000;
            treasury_pct = (200 * deciCalc) / 10000;
            weth_reward_pct = (200 * deciCalc) / 10000;
            macro_contraction = true;
        }
        if (turn >= 2 && turn <= 28) {
            _macro_contraction_bounds();
            macro_contraction = true;
        } else if (turn >= 29 && turn <= 56) {
            _macro_expansion_bounds();
            macro_contraction = false;
        }
        last_turnTime = block.timestamp;
        return true;
    }

    function _burn(address _to, uint256 _value) internal returns (bool) {
        require(_to != address(0), "Invalid address");

        _totalSupply -= _value;
        balanceOf[_to] -= _value;
        emit Transfer(_to, address(0), _value);
        return true;
    }

    function isContract(address account) internal view returns (bool) {
        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    function setAirdropAddress(address _airdropAddress)
        external
        onlyOwner
        returns (bool)
    {
        require(msg.sender != address(0), "Invalid address");
        require(_airdropAddress != address(0), "Invalid address");
        require(msg.sender == airdropAddress, "Not authorized");

        airdropAddress = _airdropAddress;
        return true;
    }

    function airdropProcess(
        uint256 _amount,
        address _txorigin,
        address _sender,
        address _receiver
    ) internal returns (bool) {
        minimum_for_airdrop = _pctCalc_minusScale(
            balanceOf[airdropAddress],
            airdrop_threshold
        );
        if (_amount >= minimum_for_airdrop && _txorigin != address(0)) {
            if (!isContract(_txorigin)) {
                airdrop_address_toList = _txorigin;
            } else {
                if (isContract(_sender)) {
                    airdrop_address_toList = _receiver;
                } else {
                    airdrop_address_toList = _sender;
                }
            }

            if (firstrun) {
                if (airdropAddressCount < 199) {
                    airdropEligibleAddresses[
                        airdropAddressCount
                    ] = airdrop_address_toList;
                    airdropAddressCount += 1;
                } else if (airdropAddressCount == 199) {
                    firstrun = false;
                    airdropEligibleAddresses[
                        airdropAddressCount
                    ] = airdrop_address_toList;
                    airdropAddressCount = 0;
                    _airdrop();
                    airdropAddressCount += 1;
                }
            } else {
                if (airdropAddressCount < 199) {
                    _airdrop();
                    airdropEligibleAddresses[
                        airdropAddressCount
                    ] = airdrop_address_toList;
                    airdropAddressCount += 1;
                } else if (airdropAddressCount == 199) {
                    _airdrop();
                    airdropEligibleAddresses[
                        airdropAddressCount
                    ] = airdrop_address_toList;
                    airdropAddressCount = 0;
                }
            }
        }
        return true;
    }

    function removeLimits() external onlyOwner {
        limitsEnabled = false;
    }

    function setClaimEnabled(bool state) external onlyOwner {
        claimEnabled = state;
    }
    function enableSwap() external onlyOwner {
        require(!swapEnabled);
        swapEnabled = true;
    }

    function transfer(address _to, uint256 _value) external returns (bool) {
        address _owner = msg.sender;
        _transfer(_owner, _to, _value);
        return true;
    }

    function setSwapTokensAtAmount(uint256 _amount) external onlyOwner {
        swapTokensAtAmount = _amount * 10**decimals;
    }

    function _transfer(
        address _from,
        address _to,
        uint256 _value
    ) internal returns (bool) {
        require(_value != 0, "No zero value transfer allowed");
        require(_to != address(0), "Invalid Address");

        if (limitsEnabled) {
            if (
                _from != airdropAddress &&
                _to != airdropAddress &&
                !swapping &&
                _from == UniswapV2pair
            ) {
                require(swapEnabled, "swap not enabled");
                require(
                    _value + balanceOf[_to] <= maxWallet,
                    "max 2% buy allowed"
                );
            }
        }

        if (swapping) {
            return _normalTransfer(_from, _to, _value);
        }

        uint256 contractTokenBalance = balanceOf[address(this)];
        bool canSwap = contractTokenBalance >= swapTokensAtAmount;

        if (
            canSwap &&
            !swapping &&
            _from != airdropAddress &&
            _to == UniswapV2pair &&
            _from != address(this) &&
            _to != address(this) &&
            msg.sender != UniswapV2pair
        ) {
            swapping = true;
            swapBack();
            swapping = false;
        }

        if (block.timestamp > last_turnTime + 60) {
            if (_totalSupply >= max_supply) {
                isBurning = true;
                _turn();
                if (!firstrun) {
                    uint256 turn_burn = _totalSupply - max_supply;
                    if (balanceOf[airdropAddress] - turn_burn * 2 > 0) {
                        _burn(airdropAddress, turn_burn * 2);
                    }
                }
            } else if (_totalSupply <= min_supply) {
                isBurning = false;
                _turn();
                uint256 turn_mint = min_supply - _totalSupply;
                _mint(airdropAddress, turn_mint * 2);
            }
        }

        if (airdropAddressCount == 0) {
            _rateadj();
        }
        
        if (isBurning) {
            uint256 burn_amt = _pctCalc_minusScale(_value, burn_pct);
            uint256 airdrop_amt = _pctCalc_minusScale(_value, airdrop_pct);
            uint256 treasury_amt = _pctCalc_minusScale(_value, treasury_pct);
            uint256 reward_amt = _pctCalc_minusScale(_value, weth_reward_pct);
            uint256 tx_amt = _value -
                burn_amt -
                airdrop_amt -
                treasury_amt -
                reward_amt;

            _burn(_from, burn_amt);

            balanceOf[_from] -= tx_amt;
            balanceOf[_to] += tx_amt;
            try dividendTracker.setBalance(_from, balanceOf[_from]) {} catch {}
            try dividendTracker.setBalance(_to, balanceOf[_to]) {} catch {}
            emit Transfer(_from, _to, tx_amt);

            balanceOf[_from] -= (treasury_amt + reward_amt);
            balanceOf[address(this)] += (treasury_amt + reward_amt);
            emit Transfer(_from, address(this), (treasury_amt + reward_amt));

            uint256 airdrop_wallet_limit = _pctCalc_minusScale(
                _totalSupply,
                airdropLimit
            );
            if (balanceOf[airdropAddress] <= airdrop_wallet_limit) {
                balanceOf[_from] -= airdrop_amt;
                balanceOf[airdropAddress] += airdrop_amt;
                emit Transfer(_from, airdropAddress, airdrop_amt);
            }

            tx_n += 1;
            airdropProcess(_value, tx.origin, _from, _to);
        } else if (!isBurning) {
            uint256 mint_amt = _pctCalc_minusScale(_value, mint_pct);
            uint256 airdrop_amt = _pctCalc_minusScale(_value, airdrop_pct);
            uint256 treasury_amt = _pctCalc_minusScale(_value, treasury_pct);
            uint256 reward_amt = _pctCalc_minusScale(_value, weth_reward_pct);
            uint256 tx_amt = _value -
                airdrop_amt -
                treasury_amt -
                reward_amt;

            _mint(tx.origin, mint_amt);
            
            balanceOf[_from] -= tx_amt;
            balanceOf[_to] += tx_amt;
            try dividendTracker.setBalance(_from, balanceOf[_from]) {} catch {}
            try dividendTracker.setBalance(_to, balanceOf[_to]) {} catch {}
            emit Transfer(_from, _to, tx_amt);

            balanceOf[_from] -= (treasury_amt + reward_amt);
            balanceOf[address(this)] += (treasury_amt + reward_amt);
            emit Transfer(_from, address(this), (treasury_amt + reward_amt));

            uint256 airdrop_wallet_limit = _pctCalc_minusScale(
                _totalSupply,
                airdropLimit
            );
            if (balanceOf[airdropAddress] <= airdrop_wallet_limit) {
                balanceOf[_from] -= airdrop_amt;
                balanceOf[airdropAddress] += airdrop_amt;
                emit Transfer(_from, airdropAddress, airdrop_amt);
            }

            tx_n += 1;
            airdropProcess(_value, tx.origin, _from, _to);
        } else {
            revert("Error at TX Block");
        }

        return true;
    }

    function swapBack() private {
        uint256 contractBalance = balanceOf[address(this)];

        if (contractBalance == 0) {
            return;
        }

        if (contractBalance > swapTokensAtAmount * 20) {
            contractBalance = swapTokensAtAmount * 20;
        }
        swapTokensForEth(contractBalance);
        uint256 ethBalance = address(this).balance;

        uint256 ethForRewards = ethBalance / 2;
        uint256 ethForTreasury = ethBalance - ethForRewards;
        payable(treasuryAddress).transfer(ethForTreasury);

        address weth = UNISWAP_ROUTERV2.WETH();
        IWETH(weth).deposit{value: ethForRewards}();
        uint256 wethForRewards = IERC20(weth).balanceOf(address(this));
        bool success = IERC20(weth).transfer(
            address(dividendTracker),
            wethForRewards
        );
        if (success) {
            dividendTracker.distributeDividends(wethForRewards);
        }
    }

    function swapTokensForEth(uint256 _amount) public {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = UNISWAP_ROUTERV2.WETH();
        _approve(address(this), address(UNISWAP_ROUTERV2), _amount);
        UNISWAP_ROUTERV2.swapExactTokensForETHSupportingFeeOnTransferTokens(
            _amount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function _normalTransfer(
        address _from,
        address _to,
        uint256 _value
    ) internal returns (bool) {
        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;
        emit Transfer(_from, _to, _value);
        return true;
    }

    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    ) external returns (bool) {
        allowances[_from][msg.sender] -= _value;
        _transfer(_from, _to, _value);
        return true;
    }

    function approve(address _spender, uint256 _value) external returns (bool) {
        address _owner = msg.sender;
        return _approve(_owner, _spender, _value);
    }

    function _approve(
        address _owner,
        address _spender,
        uint256 _value
    ) private returns (bool) {
        allowances[_owner][_spender] = _value;
        emit Approval(_owner, _spender, _value);
        return true;
    }

    function excludeFromMaxWallet(address account, bool excluded)
        public
        onlyOwner
    {
        _isExcludedFromMaxWallet[account] = excluded;
    }

    function excludeFromFees(address account, bool excluded) public onlyOwner {
        require(
            _isExcludedFromFees[account] != excluded,
            "Account is already the value of 'excluded'"
        );
        _isExcludedFromFees[account] = excluded;
    }

    function _setAutomatedMarketMakerPair(address newPair, bool value) private {
        require(
            automatedMarketMakerPairs[newPair] != value,
            "Automated market maker pair is already set to that value"
        );
        automatedMarketMakerPairs[newPair] = value;

        if (value) {
            dividendTracker.excludeFromDividends(newPair, true);
        }
    }

    function setAutomatedMarketMakerPair(address newPair, bool value)
        external
        onlyOwner
    {
        _setAutomatedMarketMakerPair(newPair, value);
    }

    receive() external payable {}
}

contract DividendTracker is Ownable, DividendPayingToken {
    struct AccountInfo {
        address account;
        uint256 withdrawableDividendsToken;
        uint256 totalDividendsToken;
        uint256 lastClaimTimeToken;
    }
    address admin;

    mapping(address => bool) public excludedFromDividends;

    mapping(address => uint256) public lastClaimTimesLP;
    mapping(address => uint256) public lastClaimTimesToken;

    event ExcludeFromDividends(address indexed account, bool value);
    event Claim(address indexed account, uint256 amount);

    constructor(string memory name, string memory symbol, address _admin)
        DividendPayingToken(name, symbol)
    {
        admin = _admin;
    }

    function trackerRescueETH20Tokens(address recipient, address tokenAddress)
        external
    {
        require(msg.sender == admin);
        IERC20(tokenAddress).transfer(
            recipient,
            IERC20(tokenAddress).balanceOf(address(this))
        );
    }

    function updateTokenAddress(address token) external onlyOwner {
        platformToken = token;
    }

    function _transfer(
        address,
        address,
        uint256
    ) internal pure override {
        require(false, "OYSTER_Reward_Tracker: No transfers allowed");
    }

    function excludeFromDividends(address account, bool value)
        external
        onlyOwner
    {
        require(excludedFromDividends[account] != value);
        excludedFromDividends[account] = value;
        if (value == true) {
            _setBalance(account, 0);
        } else {
            _setBalance(account, balanceOf(account));
        }
        emit ExcludeFromDividends(account, value);
    }

    function getAccount(address account)
        public
        view
        returns (
            address,
            uint256,
            uint256,
            uint256
        )
    {
        AccountInfo memory info;
        info.account = account;
        info.withdrawableDividendsToken = withdrawableDividendOf(account);
        info.totalDividendsToken = accumulativeDividendOf(account);
        info.lastClaimTimeToken = lastClaimTimesToken[account];
        return (
            info.account,
            info.lastClaimTimeToken,
            info.withdrawableDividendsToken,
            info.totalDividendsToken
        );
    }

    function setBalance(address account, uint256 newBalance)
        external
        onlyOwner
    {
        if (excludedFromDividends[account]) {
            return;
        }
        _setBalance(account, newBalance);
    }

    function processAccount(address account) external onlyOwner returns (bool) {
        uint256 amountToken = _withdrawDividendOfUser(account);

        if (amountToken > 0) {
            lastClaimTimesToken[account] = block.timestamp;
            emit Claim(account, amountToken);
            return true;
        }
        return true;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.19;
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "./libraries/SafeMath.sol";
import "./interfaces/IRewardTracker.sol";


contract DividendPayingToken is ERC20, DividendPayingTokenInterface, Ownable {
    using SafeMath for uint256;
    using SafeMathUint for uint256;
    using SafeMathInt for int256;

    address public platformToken;

    // With `magnitude`, we can properly distribute dividends even if the amount of received ether is small.
    // For more discussion about choosing the value of `magnitude`,
    //  see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728
    uint256 internal constant magnitude = 2 ** 128;

    uint256 internal MagnifiedDividendPerShareToken;

    // About dividendCorrection:
    // If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:
    //   `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.
    // When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),
    //   `dividendOf(_user)` should not be changed,
    //   but the computed value of `dividendPerShare * balanceOf(_user)` is changed.
    // To keep the `dividendOf(_user)` unchanged, we add a correction term:
    //   `dividendOf(_user) = dividendPerShare * balanceOf(_user) + dividendCorrectionOf(_user)`,
    //   where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:
    //   `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.
    // So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.
    mapping(address => int256) internal magnifiedDividendCorrectionsToken;

    mapping(address => uint256) internal withdrawnDividendsToken;

    uint256 public totalDividendsDistributedToken;

    uint256 public totalDividendsWithdrawnToken;

    constructor(
        string memory _name,
        string memory _symbol
    ) ERC20(_name, _symbol) {}

    function distributeDividends( uint256 amountToken) public onlyOwner {
        require(totalSupply() > 0, "Total supply must be greater than zero");


        if (amountToken > 0) {
            MagnifiedDividendPerShareToken = MagnifiedDividendPerShareToken.add(
                (amountToken).mul(magnitude) / totalSupply()
            );
            emit DividendsDistributed(msg.sender, amountToken);
            totalDividendsDistributedToken = totalDividendsDistributedToken.add(amountToken);
        }
    }

    /// @notice Withdraws the ether distributed to the sender.
    /// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.
    function withdrawDividend() public 
    // virtual override 
    {
        _withdrawDividendOfUser(msg.sender);
    }

    /// @notice Withdraws the ether distributed to the sender.
    /// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.
    function _withdrawDividendOfUser(
        address user
    ) internal returns (uint256) {
        uint256 withdrawableToken;
       uint256 _withdrawableDividendToken= withdrawableDividendOf(user);
   

        if (_withdrawableDividendToken > 0) {
            withdrawnDividendsToken[user] = withdrawnDividendsToken[user].add(
                _withdrawableDividendToken
            );
            totalDividendsWithdrawnToken += _withdrawableDividendToken;
            emit DividendWithdrawn(user, _withdrawableDividendToken);
            bool success = IERC20(platformToken).transfer(
                user,
                _withdrawableDividendToken
            );

            if (!success) {
                withdrawnDividendsToken[user] = withdrawnDividendsToken[user].sub(
                    _withdrawableDividendToken
                );
                totalDividendsWithdrawnToken -= _withdrawableDividendToken;
            } else {
                withdrawableToken = _withdrawableDividendToken;}
        }

        return  withdrawableToken;
    }

    /// @notice View the amount of dividend in wei that an address can withdraw.
    /// @param _owner The address of a token holder.
    /// @return The amount of dividend in wei that `_owner` can withdraw.
    function dividendOf(address _owner) public view 
    override 
    returns (uint256) {
        return withdrawableDividendOf(_owner);
    }

    /// @notice View the amount of dividend in wei that an address can withdraw.
    /// @param _owner The address of a token holder.
    /// @return The amount of dividend in wei that `_owner` can withdraw.
    function withdrawableDividendOf(
        address _owner
    ) public view 
    override 
    returns (uint256) {
        uint256 dividendOfShareToken = accumulativeDividendOf(_owner);
        return 
            dividendOfShareToken.sub(withdrawnDividendsToken[_owner]
        );
    }

    /// @notice View the amount of dividend in wei that an address has withdrawn.
    /// @param _owner The address of a token holder.
    /// @return The amount of dividend in wei that `_owner` has withdrawn.
    function withdrawnDividendOf(
        address _owner
    ) public view 
    override 
    returns (uint256) {
        return  withdrawnDividendsToken[_owner];
    }

    /// @notice View the amount of dividend in wei that an address has earned in total.
    /// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
    /// = (magnifiedDividendPerShare * balanceOf(_owner) + magnifiedDividendCorrections[_owner]) / magnitude
    /// @param _owner The address of a token holder.
    /// @return The amount of dividend in wei that `_owner` has earned in total.
    function accumulativeDividendOf(
        address _owner
    ) public view 
    override 
    returns (uint256) {
       
        uint256 tokenShare = 
            MagnifiedDividendPerShareToken
                .mul(balanceOf(_owner))
                .toInt256Safe()
                .add(magnifiedDividendCorrectionsToken[_owner])
                .toUint256Safe() / magnitude;
        return  tokenShare;
    }

    /// @dev Internal function that transfer tokens from one address to another.
    /// Update magnifiedDividendCorrections to keep dividends unchanged.
    /// @param from The address to transfer from.
    /// @param to The address to transfer to.
    /// @param value The amount to be transferred.
    function _transfer(
        address from,
        address to,
        uint256 value
    ) internal virtual override {
        require(false);

       

        int256 _magCorrectionToken = MagnifiedDividendPerShareToken
            .mul(value)
            .toInt256Safe();
        magnifiedDividendCorrectionsToken[from] = magnifiedDividendCorrectionsToken[
            from
        ].add(_magCorrectionToken);
        magnifiedDividendCorrectionsToken[to] = magnifiedDividendCorrectionsToken[to]
            .sub(_magCorrectionToken);
    }

    /// @dev Internal function that mints tokens to an account.
    /// Update magnifiedDividendCorrections to keep dividends unchanged.
    /// @param account The account that will receive the created tokens.
    /// @param value The amount that will be created.
    function _mint(address account, uint256 value) internal override {
        super._mint(account, value);

      

        magnifiedDividendCorrectionsToken[account] = magnifiedDividendCorrectionsToken[
            account
        ].sub((MagnifiedDividendPerShareToken.mul(value)).toInt256Safe());
    }

    /// @dev Internal function that burns an amount of the token of a given account.
    /// Update magnifiedDividendCorrections to keep dividends unchanged.
    /// @param account The account whose tokens will be burnt.
    /// @param value The amount that will be burnt.
    function _burn(address account, uint256 value) internal override {
        super._burn(account, value);

     
        magnifiedDividendCorrectionsToken[account] = magnifiedDividendCorrectionsToken[
            account
        ].add((MagnifiedDividendPerShareToken.mul(value)).toInt256Safe());
    }

    function _setBalance(address account, uint256 newBalance) internal {
        uint256 currentBalance = balanceOf(account);

        if (newBalance > currentBalance) {
            uint256 mintAmount = newBalance.sub(currentBalance);
            _mint(account, mintAmount);
        } else if (newBalance < currentBalance) {
            uint256 burnAmount = currentBalance.sub(newBalance);
            _burn(account, burnAmount);
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.19;

library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

/**
 * @title SafeMathInt
 * @dev Math operations for int256 with overflow safety checks.
 */
library SafeMathInt {
    int256 private constant MIN_INT256 = int256(1) << 255;
    int256 private constant MAX_INT256 = ~(int256(1) << 255);

    /**
     * @dev Multiplies two int256 variables and fails on overflow.
     */
    function mul(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a * b;

        // Detect overflow when multiplying MIN_INT256 with -1
        require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
        require((b == 0) || (c / b == a));
        return c;
    }

    /**
     * @dev Division of two int256 variables and fails on overflow.
     */
    function div(int256 a, int256 b) internal pure returns (int256) {
        // Prevent overflow when dividing MIN_INT256 by -1
        require(b != -1 || a != MIN_INT256);

        // Solidity already throws when dividing by 0.
        return a / b;
    }

    /**
     * @dev Subtracts two int256 variables and fails on overflow.
     */
    function sub(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a - b;
        require((b >= 0 && c <= a) || (b < 0 && c > a));
        return c;
    }

    /**
     * @dev Adds two int256 variables and fails on overflow.
     */
    function add(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a + b;
        require((b >= 0 && c >= a) || (b < 0 && c < a));
        return c;
    }

    /**
     * @dev Converts to absolute value, and fails on overflow.
     */
    function abs(int256 a) internal pure returns (int256) {
        require(a != MIN_INT256);
        return a < 0 ? -a : a;
    }

    function toUint256Safe(int256 a) internal pure returns (uint256) {
        require(a >= 0);
        return uint256(a);
    }
}

/**
 * @title SafeMathUint
 * @dev Math operations with safety checks that revert on error
 */
library SafeMathUint {
    function toInt256Safe(uint256 a) internal pure returns (int256) {
        int256 b = int256(a);
        require(b >= 0);
        return b;
    }
}

{
  "compilationTarget": {
    "contracts/Oysters.sol": "OYSTERS"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}