// 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: GPL-3.0

/**
Spaze is a token created for GAMERS! Over the year gaming has brought so many of us together and it's time to once again unit in the crypto world. From games like Halo and Call of Duty to Diablo and GTA. When we turned on that consol or PC for the first time, we embarked on a journey full of excitement and friendships. Those feelings of "Playing with the BOYS" late at night will forever live on in us and together we will win at this game called "LIFE" one Spaze coin at a time! 

Join us and let's get this game started!!!
*/

pragma solidity 0.8.17;

import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
import { LibCommon } from "./lib/LibCommon.sol";
import { ReflectiveV3ERC20 } from "./ReflectiveV3ERC20.sol";

/// @title A Defi Token implementation with extended functionalities
/// @notice Implements ERC20 standards with additional features like tax and deflation
contract DefiTokenFixedSupply is ReflectiveV3ERC20, Ownable {
  // Constants
  uint256 private constant MAX_BPS_AMOUNT = 10_000;
  uint256 private constant MAX_ALLOWED_BPS = 2_000;
  uint256 public constant MAX_EXCLUSION_LIMIT = 100;
  string public constant VERSION = "defi_v_1_fixed_supply";
  string public constant CONTRACT_NAME = "DefiTokenFixedSupply";
  bytes32 public constant CONTRACT_HASH = 0xe8b50120255bfe9a2d6ef341c19bf7d9beedc00f6a530372171b9f0f2189b488;

  // State Variables
  string public initialDocumentUri;
  string public documentUri;
  uint256 public immutable initialSupply;
  uint256 public immutable initialMaxTokenAmountPerAddress;
  uint256 public maxTokenAmountPerAddress;

  mapping(address => bool) public isFeesAndLimitsExcluded;
  address[] public feesAndLimitsExcluded;

  /// @notice Configuration properties for the ERC20 token
  struct ERC20ConfigProps {
    bool _isBurnable;
    bool _isDocumentAllowed;
    bool _isMaxAmountOfTokensSet;
    bool _isTaxable;
    bool _isDeflationary;
    bool _isReflective;
  }
  ERC20ConfigProps private configProps;

  address public immutable initialTokenOwner;
  uint8 private immutable _decimals;
  address public taxAddress;
  uint256 public taxBPS;
  uint256 public deflationBPS;

  // Events
  event DocumentUriSet(string newDocUri);
  event MaxTokenAmountPerSet(uint256 newMaxTokenAmount);
  event TaxConfigSet(address indexed _taxAddress, uint256 indexed _taxBPS);
  event DeflationConfigSet(uint256 indexed _deflationBPS);
  event ReflectionConfigSet(uint256 indexed _feeBPS);
  event ExcludeFromFeesAndLimits(address indexed account);
  event IncludedInFeesAndLimits(address indexed account);

  // Custom Errors
  error InvalidMaxTokenAmount(uint256 maxTokenAmount);
  error InvalidDecimals(uint8 decimals);
  error MaxTokenAmountPerAddrLtPrevious();
  error DestBalanceExceedsMaxAllowed(address addr);
  error DocumentUriNotAllowed();
  error MaxTokenAmountNotAllowed();
  error TokenIsNotTaxable();
  error TokenIsNotDeflationary();
  error InvalidTotalBPS(uint256 bps);
  error InvalidReflectiveConfig();
  error AlreadyExcludedFromFeesAndLimits();
  error AlreadyIncludedInFeesAndLimits();
  error ReachedMaxExclusionLimit();

  /// @notice Constructor to initialize the DeFi token
  /// @param name_ Name of the token
  /// @param symbol_ Symbol of the token
  /// @param initialSupplyToSet Initial supply of tokens
  /// @param decimalsToSet Number of decimals for the token
  /// @param tokenOwner Address of the initial token owner
  /// @param customConfigProps Configuration properties for the token
  /// @param newDocumentUri URI for the document associated with the token
  /// @param _taxAddress Address where tax will be sent
  /// @param bpsParams array of BPS values in this order:
  ///           taxBPS = bpsParams[0],
  ///           deflationBPS = bpsParams[1],
  ///           rewardFeeBPS = bpsParams[2],
  /// @param amountParams array of amounts for amount specific config:
  ///           maxTokenAmount = amountParams[0], Maximum token amount per address

  constructor(
    string memory name_,
    string memory symbol_,
    uint256 initialSupplyToSet,
    uint8 decimalsToSet,
    address tokenOwner,
    ERC20ConfigProps memory customConfigProps,
    string memory newDocumentUri,
    address _taxAddress,
    uint256[3] memory bpsParams,
    uint256[1] memory amountParams
  )
    ReflectiveV3ERC20(
      name_,
      symbol_,
      tokenOwner,
      initialSupplyToSet,
      decimalsToSet,
      initialSupplyToSet != 0 ? bpsParams[2] : 0,
      customConfigProps._isReflective
    )
  {
    // reflection feature can't be used in combination with burning/deflation
    // or reflection config is invalid if no reflection BPS amount is provided
    if (
      (customConfigProps._isReflective &&
        (customConfigProps._isBurnable ||
          customConfigProps._isDeflationary)) ||
      (!customConfigProps._isReflective && bpsParams[2] != 0)
    ) {
      revert InvalidReflectiveConfig();
    }

    if (customConfigProps._isMaxAmountOfTokensSet) {
      if (amountParams[0] == 0) {
        revert InvalidMaxTokenAmount(amountParams[0]);
      }
    }
    if (decimalsToSet > 18) {
      revert InvalidDecimals(decimalsToSet);
    }

    bpsInitChecks(customConfigProps, bpsParams, _taxAddress);

    LibCommon.validateAddress(tokenOwner);

    taxAddress = _taxAddress;

    taxBPS = bpsParams[0];
    deflationBPS = bpsParams[1];
    initialSupply = initialSupplyToSet;
    initialMaxTokenAmountPerAddress = amountParams[0];
    initialDocumentUri = newDocumentUri;
    initialTokenOwner = tokenOwner;
    _decimals = decimalsToSet;
    configProps = customConfigProps;
    documentUri = newDocumentUri;
    maxTokenAmountPerAddress = amountParams[0];

    if (tokenOwner != msg.sender) {
      transferOwnership(tokenOwner);
    }
  }

  function bpsInitChecks(
    ERC20ConfigProps memory customConfigProps,
    uint256[3] memory bpsParams,
    address _taxAddress
  ) private pure {
    uint256 totalBPS = 0;
    if (customConfigProps._isTaxable) {
      LibCommon.validateAddress(_taxAddress);

      totalBPS += bpsParams[0];
    }
    if (customConfigProps._isDeflationary) {
      totalBPS += bpsParams[1];
    }
    if (customConfigProps._isReflective) {
      totalBPS += bpsParams[2];
    }
    if (totalBPS > MAX_ALLOWED_BPS) {
      revert InvalidTotalBPS(totalBPS);
    }
  }

  // Public and External Functions

  function getFeesAndLimitsExclusionList() external view returns (address[] memory) {
    return feesAndLimitsExcluded;
  }

  /// @notice Checks if the token is burnable
  /// @return True if the token can be burned
  function isBurnable() public view returns (bool) {
    return configProps._isBurnable;
  }

  function getRewardsExclusionList() public view returns (address[] memory) {
    return rewardsExcluded;
  }

  /// @notice Checks if the maximum amount of tokens per address is set
  /// @return True if there is a maximum limit for token amount per address
  function isMaxAmountOfTokensSet() public view returns (bool) {
    return configProps._isMaxAmountOfTokensSet;
  }

  /// @notice Checks if setting a document URI is allowed
  /// @return True if setting a document URI is allowed
  function isDocumentUriAllowed() public view returns (bool) {
    return configProps._isDocumentAllowed;
  }

  /// @notice Returns the number of decimals used for the token
  /// @return The number of decimals
  function decimals() public view virtual override returns (uint8) {
    return _decimals;
  }

  /// @notice Checks if the token is taxable
  /// @return True if the token has tax applied on transfers
  function isTaxable() public view returns (bool) {
    return configProps._isTaxable;
  }

  /// @notice Checks if the token is deflationary
  /// @return True if the token has deflation applied on transfers
  function isDeflationary() public view returns (bool) {
    return configProps._isDeflationary;
  }

  /// @notice Checks if the token is reflective
  /// @return True if the token has reflection (ie. holder rewards) applied on transfers
  function isReflective() public view returns (bool) {
    return configProps._isReflective;
  }

  /// @notice Sets a new document URI
  /// @dev Can only be called by the contract owner
  /// @param newDocumentUri The new URI to be set
  function setDocumentUri(string memory newDocumentUri) external onlyOwner {
    if (!isDocumentUriAllowed()) {
      revert DocumentUriNotAllowed();
    }
    documentUri = newDocumentUri;
    emit DocumentUriSet(newDocumentUri);
  }

  /// @notice Sets a new maximum token amount per address
  /// @dev Can only be called by the contract owner
  /// @param newMaxTokenAmount The new maximum token amount per address
  function setMaxTokenAmountPerAddress(
    uint256 newMaxTokenAmount
  ) external onlyOwner {
    if (!isMaxAmountOfTokensSet()) {
      revert MaxTokenAmountNotAllowed();
    }
    if (newMaxTokenAmount <= maxTokenAmountPerAddress) {
      revert MaxTokenAmountPerAddrLtPrevious();
    }

    maxTokenAmountPerAddress = newMaxTokenAmount;
    emit MaxTokenAmountPerSet(newMaxTokenAmount);
  }

  /// @notice Sets a new reflection fee
  /// @dev Can only be called by the contract owner
  /// @param _feeBPS The reflection fee in basis points
  function setReflectionConfig(uint256 _feeBPS) external onlyOwner {
    if (!isReflective()) {
      revert TokenIsNotReflective();
    }
    super._setReflectionFee(_feeBPS);

    emit ReflectionConfigSet(_feeBPS);
  }

  /// @notice Sets a new tax configuration
  /// @dev Can only be called by the contract owner
  /// @param _taxAddress The address where tax will be sent
  /// @param _taxBPS The tax rate in basis points
  function setTaxConfig(
    address _taxAddress,
    uint256 _taxBPS
  ) external onlyOwner {
    if (!isTaxable()) {
      revert TokenIsNotTaxable();
    }

    uint256 totalBPS = deflationBPS + tFeeBPS + _taxBPS;
    if (totalBPS > MAX_ALLOWED_BPS) {
      revert InvalidTotalBPS(totalBPS);
    }
    LibCommon.validateAddress(_taxAddress);
    taxAddress = _taxAddress;
    taxBPS = _taxBPS;
    emit TaxConfigSet(_taxAddress, _taxBPS);
  }

  /// @notice Sets a new deflation configuration
  /// @dev Can only be called by the contract owner
  /// @param _deflationBPS The deflation rate in basis points
  function setDeflationConfig(uint256 _deflationBPS) external onlyOwner {
    if (!isDeflationary()) {
      revert TokenIsNotDeflationary();
    }
    uint256 totalBPS = deflationBPS + tFeeBPS + _deflationBPS;
    if (totalBPS > MAX_ALLOWED_BPS) {
      revert InvalidTotalBPS(totalBPS);
    }
    deflationBPS = _deflationBPS;
    emit DeflationConfigSet(_deflationBPS);
  }

  /// @notice Transfers tokens to a specified address
  /// @dev Overrides the ERC20 transfer function with added tax and deflation logic
  /// @param to The address to transfer tokens to
  /// @param amount The amount of tokens to be transferred
  /// @return True if the transfer was successful
  function transfer(
    address to,
    uint256 amount
  ) public virtual override returns (bool) {
    uint256 taxAmount = _taxAmount(msg.sender, to, amount);
    uint256 deflationAmount = _deflationAmount(msg.sender, to, amount);
    uint256 amountToTransfer = amount - taxAmount - deflationAmount;

    if (isMaxAmountOfTokensSet() && !isFeesAndLimitsExcluded[to]) {
      if (balanceOf(to) + amountToTransfer > maxTokenAmountPerAddress) {
        revert DestBalanceExceedsMaxAllowed(to);
      }
    }

    if (taxAmount != 0) {
      _transferNonReflectedTax(msg.sender, taxAddress, taxAmount);
    }
    if (deflationAmount != 0) {
      _burn(msg.sender, deflationAmount);
    }
    return super.transfer(to, amountToTransfer);
  }

  /// @notice Transfers tokens from one address to another
  /// @dev Overrides the ERC20 transferFrom function with added tax and deflation logic
  /// @param from The address which you want to send tokens from
  /// @param to The address which you want to transfer to
  /// @param amount The amount of tokens to be transferred
  /// @return True if the transfer was successful
  function transferFrom(
    address from,
    address to,
    uint256 amount
  ) public virtual override returns (bool) {
    uint256 taxAmount = _taxAmount(from, to, amount);
    uint256 deflationAmount = _deflationAmount(from, to, amount);
    uint256 amountToTransfer = amount - taxAmount - deflationAmount;

    if (isMaxAmountOfTokensSet() && !isFeesAndLimitsExcluded[to]) {
      if (balanceOf(to) + amountToTransfer > maxTokenAmountPerAddress) {
        revert DestBalanceExceedsMaxAllowed(to);
      }
    }

    if (taxAmount != 0) {
      _transferNonReflectedTax(from, taxAddress, taxAmount);
    }
    if (deflationAmount != 0) {
      _burn(from, deflationAmount);
    }

    return super.transferFrom(from, to, amountToTransfer);
  }

  /// @notice Burns a specific amount of tokens
  /// @dev Can only be called by the contract owner and if burning is enabled
  /// @param amount The amount of tokens to be burned
  function burn(uint256 amount) external onlyOwner {
    if (!isBurnable()) {
      revert BurningNotEnabled();
    }
    _burn(msg.sender, amount);
  }

  /// @notice Renounces ownership of the contract
  /// @dev Leaves the contract without an owner, disabling any functions that require the owner's authorization
  function renounceOwnership() public override onlyOwner {
    super.renounceOwnership();
  }

  /// @notice Transfers ownership of the contract to a new account
  /// @dev Can only be called by the current owner
  /// @param newOwner The address of the new owner
  function transferOwnership(address newOwner) public override onlyOwner {
    super.transferOwnership(newOwner);
  }

  /// @notice method for adding a new account to the exclusion list
  /// @param account account to add to the exclusion list
  /// @dev only callable by owner
  function excludeFromFeesAndLimits(
    address account
  ) external onlyOwner {
    if (isFeesAndLimitsExcluded[account]) {
      revert AlreadyExcludedFromFeesAndLimits();
    }
    if (feesAndLimitsExcluded.length >= MAX_EXCLUSION_LIMIT) {
      revert ReachedMaxExclusionLimit();
    }

    isFeesAndLimitsExcluded[account] = true;
    feesAndLimitsExcluded.push(account);

    emit ExcludeFromFeesAndLimits(account);
  }

  /// @notice method for adding a new account to the reflection exclusion list
  /// @param account account to add to the exclusion list
  /// @dev only callable by owner
  function excludeFromRewards(address account) external onlyOwner {
    super._excludeFromRewards(account);
  }

  /// @notice method for removing an account from the fees exclusion list
  /// @param account account to remove from the exclusion list
  /// @dev only callable by owner
  function includeInFeesAndLimits(address account) external onlyOwner() {
    if (!isFeesAndLimitsExcluded[account]) {
      revert AlreadyIncludedInFeesAndLimits();
    }

    for (uint256 i = 0; i < feesAndLimitsExcluded.length; i++) {
      if (feesAndLimitsExcluded[i] == account) {
        feesAndLimitsExcluded[i] = feesAndLimitsExcluded[feesAndLimitsExcluded.length - 1];
        isFeesAndLimitsExcluded[account] = false;
        feesAndLimitsExcluded.pop();
        emit IncludedInFeesAndLimits(account);

        break;
      }
    }
  }

  /// @notice method for removing an account from the reflection exclusion list
  /// @param account account to remove from the exclusion list
  /// @dev only callable by owner
  function includeInRewards(address account) external onlyOwner() {
    super._includeInRewards(account);
  }

  // Internal Functions

  /// @notice Calculates the tax amount for a transfer
  /// @param sender The address initiating the transfer
  /// @param recipient The address receiving the transfer
  /// @param amount The amount of tokens being transferred
  /// @return taxAmount The calculated tax amount
  function _taxAmount(
    address sender,
    address recipient,
    uint256 amount
  ) internal view returns (uint256 taxAmount) {
    taxAmount = 0;
    if (taxBPS != 0 && sender != taxAddress && !isFeesAndLimitsExcluded[sender] && !isFeesAndLimitsExcluded[recipient]) {
      taxAmount = (amount * taxBPS) / MAX_BPS_AMOUNT;
    }
  }

  /// @notice Calculates the deflation amount for a transfer
  /// @param sender The address initiating the transfer
  /// @param recipient The address receiving the transfer
  /// @param amount The amount of tokens being transferred
  /// @return deflationAmount The calculated deflation amount
  function _deflationAmount(
    address sender,
    address recipient,
    uint256 amount
  ) internal view returns (uint256 deflationAmount) {
    deflationAmount = 0;
    if (deflationBPS != 0 && !isFeesAndLimitsExcluded[sender] && !isFeesAndLimitsExcluded[recipient]) {
      deflationAmount = (amount * deflationBPS) / MAX_BPS_AMOUNT;
    }
  }
}

// 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 0.8.17;

library LibCommon {
  /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
  /*                       CUSTOM ERRORS                        */
  /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

  /// @dev The ETH transfer has failed.
  error ETHTransferFailed();

  /// @dev The address is the zero address.
  error ZeroAddress();

  /// @notice raised when an ERC20 transfer fails
  error TransferFailed();

  /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
  /*                       ETH OPERATIONS                       */
  /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/

  /// @notice Taken from Solady (https://github.com/vectorized/solady/blob/main/src/utils/SafeTransferLib.sol)
  /// @dev Sends `amount` (in wei) ETH to `to`.
  /// Reverts upon failure.
  function safeTransferETH(address to, uint256 amount) internal {
    // solhint-disable-next-line no-inline-assembly
    assembly {
      // Transfer the ETH and check if it succeeded or not.
      if iszero(call(gas(), to, amount, 0, 0, 0, 0)) {
        // Store the function selector of `ETHTransferFailed()`.
        // bytes4(keccak256(bytes("ETHTransferFailed()"))) = 0xb12d13eb
        mstore(0x00, 0xb12d13eb)
        // Revert with (offset, size).
        revert(0x1c, 0x04)
      }
    }
  }

  /// @notice Validates that the address is not the zero address using assembly.
  /// @dev Reverts if the address is the zero address.
  function validateAddress(address addr) internal pure {
    // solhint-disable-next-line no-inline-assembly
    assembly {
      if iszero(shl(96, addr)) {
        // Store the function selector of `ZeroAddress()`.
        // bytes4(keccak256(bytes("ZeroAddress()"))) = 0xd92e233d
        mstore(0x00, 0xd92e233d)
        // Revert with (offset, size).
        revert(0x1c, 0x04)
      }
    }
  }

  /// @notice Helper function to transfer ERC20 tokens without the need for SafeERC20.
  /// @dev Reverts if the ERC20 transfer fails.
  /// @param tokenAddress The address of the ERC20 token.
  /// @param from The address to transfer the tokens from.
  /// @param to The address to transfer the tokens to.
  /// @param amount The amount of tokens to transfer.
  function safeTransferFrom(
    address tokenAddress,
    address from,
    address to,
    uint256 amount
  ) internal returns (bool) {
    // solhint-disable-next-line avoid-low-level-calls
    (bool success, bytes memory data) = tokenAddress.call(
      abi.encodeWithSignature(
        "transferFrom(address,address,uint256)",
        from,
        to,
        amount
      )
    );
    if (!success) {
      if (data.length != 0) {
        // bubble up error
        // solhint-disable-next-line no-inline-assembly
        assembly {
          let returndata_size := mload(data)
          revert(add(32, data), returndata_size)
        }
      } else {
        revert TransferFailed();
      }
    }
    return true;
  }

  /// @notice Helper function to transfer ERC20 tokens without the need for SafeERC20.
  /// @dev Reverts if the ERC20 transfer fails.
  /// @param tokenAddress The address of the ERC20 token.
  /// @param to The address to transfer the tokens to.
  /// @param amount The amount of tokens to transfer.
  function safeTransfer(
    address tokenAddress,
    address to,
    uint256 amount
  ) internal returns (bool) {
    // solhint-disable-next-line avoid-low-level-calls
    (bool success, bytes memory data) = tokenAddress.call(
      abi.encodeWithSignature("transfer(address,uint256)", to, amount)
    );
    if (!success) {
      if (data.length != 0) {
        // bubble up error
        // solhint-disable-next-line no-inline-assembly
        assembly {
          let returndata_size := mload(data)
          revert(add(32, data), returndata_size)
        }
      } else {
        revert TransferFailed();
      }
    }
    return true;
  }
}

// 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: GPL-3.0

pragma solidity 0.8.17;

import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import { LibCommon } from "./lib/LibCommon.sol";

/// @title ERC20 Token with Extended Reflection Mechanism
/// @notice This contract implements ERC20 standards along with an additional reward feature for token holders
abstract contract ReflectiveV3ERC20 is ERC20 {
  // Constants
  uint256 private constant BPS_DIVISOR = 10_000;
  uint256 public constant MAX_REWARDS_EXCLUSION_LIMIT = 100;

  mapping(address => uint256) private _rOwned;
  mapping(address => uint256) private _tOwned;

  uint256 private constant UINT_256_MAX = type(uint256).max;
  uint256 private _rTotal;
  uint256 private _tFeeTotal;

  uint256 public tFeeBPS;
  bool private immutable isReflective;

  mapping (address => bool) private _isRewardsExcluded;
  address[] public rewardsExcluded;

  // events
  event ExcludedFromRewards(address indexed account);
  event IncludedInRewards(address indexed account);

  // custom errors
  error TokenIsNotReflective();
  error TotalReflectionTooSmall();
  error ZeroTransferError();
  error BurningNotEnabled();
  error ERC20InsufficientBalance(
    address recipient,
    uint256 fromBalance,
    uint256 balance
  );
  error AlreadyExcludedFromRewards();
  error AlreadyIncludedInRewards();
  error ReachedMaxRewardExclusionLimit();

  /// @notice Returns the total supply of the token
  /// @return The total supply of the token
  function _tTotal() public view virtual returns (uint256) {
    return totalSupply();
  }

  /// @notice Constructor to initialize the ReflectiveV2ERC20 token
  /// @param name_ The name of the token
  /// @param symbol_ The symbol of the token
  /// @param tokenOwner The address of the token owner
  /// @param totalSupply_ The initial total supply of the token
  /// @param decimalsToSet The number of decimal places for the token
  /// @param tFeeBPS_ The reflection fee in basis points
  /// @param isReflective_ Indicates if the token is reflective
  constructor(
    string memory name_,
    string memory symbol_,
    address tokenOwner,
    uint256 totalSupply_,
    uint8 decimalsToSet,
    uint256 tFeeBPS_,
    bool isReflective_
  ) ERC20(name_, symbol_) {
    if (totalSupply_ != 0) {
      super._mint(tokenOwner, totalSupply_ * 10 ** decimalsToSet);
      _rTotal = (UINT_256_MAX - (UINT_256_MAX % totalSupply_));
    }

    _rOwned[tokenOwner] = _rTotal;
    tFeeBPS = tFeeBPS_;
    isReflective = isReflective_;
  }

  /// @notice Returns the balance of tokens for a specific address
  /// @param account The address to query the balance of
  /// @return The balance of tokens
  function balanceOf(address account) public view override returns (uint256) {
    if (isReflective) {
      if (_isRewardsExcluded[account]) return _tOwned[account];

      return tokenFromReflection(_rOwned[account]);
    } else {
      return super.balanceOf(account);
    }
  }

  /// @notice Transfers tokens from one account to another
  /// @param from The address to transfer tokens from
  /// @param to The address to transfer tokens to
  /// @param value The amount of tokens to transfer
  /// @return A boolean indicating success
  function transferFrom(
    address from,
    address to,
    uint256 value
  ) public virtual override returns (bool) {
    address spender = super._msgSender();
    _spendAllowance(from, spender, value);
    _transfer(from, to, value);
    return true;
  }

  /// @notice Transfers tokens to a specified address
  /// @param to The address to transfer tokens to
  /// @param value The amount of tokens to transfer
  /// @return A boolean indicating success
  function transfer(
    address to,
    uint256 value
  ) public virtual override returns (bool) {
    address owner = super._msgSender();
    _transfer(owner, to, value);
    return true;
  }

  // override internal OZ standard ERC20 functions related to transfer

  /// @notice Internal function to transfer tokens from one account to another
  /// @param from The address to transfer tokens from
  /// @param to The address to transfer tokens to
  /// @param amount The amount of tokens to transfer
  function _transfer(
    address from,
    address to,
    uint256 amount
  ) internal override {
    if (isReflective) {
      LibCommon.validateAddress(from);
      LibCommon.validateAddress(to);
      if (amount == 0) {
        revert ZeroTransferError();
      }

      if (_isRewardsExcluded[from] && !_isRewardsExcluded[to]) {
          _transferFromExcluded(from, to, amount);
      } else if (!_isRewardsExcluded[from] && _isRewardsExcluded[to]) {
          _transferToExcluded(from, to, amount);
      } else if (!_isRewardsExcluded[from] && !_isRewardsExcluded[to]) {
          _transferStandard(from, to, amount);
      } else if (_isRewardsExcluded[from] && _isRewardsExcluded[to]) {
          _transferBothExcluded(from, to, amount);
      } else {
          _transferStandard(from, to, amount);
      }
    } else {
      super._transfer(from, to, amount);
    }
  }

  /// @notice Internal function to burn tokens, disallowed if reflection mechanism is used
  /// @param account The account to burn tokens from
  /// @param value The amount of tokens to burn
  function _burn(address account, uint256 value) internal override {
    if (isReflective) {
      revert BurningNotEnabled();
    } else {
      super._burn(account, value);
    }
  }

  /// @notice Sets a new reflection fee
  /// @dev Should only be called by the contract owner
  /// @param _tFeeBPS The reflection fee in basis points
  function _setReflectionFee(uint256 _tFeeBPS) internal {
    if (!isReflective) {
      revert TokenIsNotReflective();
    }

    tFeeBPS = _tFeeBPS;
  }

  /// @notice Calculates the number of tokens from a reflection amount
  /// @param rAmount The reflection amount
  /// @return The number of tokens corresponding to the reflection amount
  function tokenFromReflection(uint256 rAmount) public view returns (uint256) {
    if (rAmount > _rTotal) {
      revert TotalReflectionTooSmall();
    }

    uint256 currentRate = _getRate();
    return rAmount / currentRate;
  }

  /// @notice Excludes an account from receiving rewards
  /// @param account The account to exclude from rewards
  function _excludeFromRewards(
    address account
  ) internal {
    if (!isReflective) {
      revert TokenIsNotReflective();
    }
    if (_isRewardsExcluded[account]) {
      revert AlreadyExcludedFromRewards();
    }
    if (rewardsExcluded.length >= MAX_REWARDS_EXCLUSION_LIMIT) {
      revert ReachedMaxRewardExclusionLimit();
    }

    if(_rOwned[account] > 0) {
        _tOwned[account] = tokenFromReflection(_rOwned[account]);
    }

    _isRewardsExcluded[account] = true;
    rewardsExcluded.push(account);

    emit ExcludedFromRewards(account);
  }

  /// @notice Includes an account to receive rewards
  /// @param account The account to include for rewards
  function _includeInRewards(address account) internal {
    if (!isReflective) {
      revert TokenIsNotReflective();
    }
    if (!_isRewardsExcluded[account]) {
      revert AlreadyIncludedInRewards();
    }

    for (uint256 i = 0; i < rewardsExcluded.length; i++) {
      if (rewardsExcluded[i] == account) {
        rewardsExcluded[i] = rewardsExcluded[rewardsExcluded.length - 1];
        _isRewardsExcluded[account] = false;
        _tOwned[account] = 0;
        rewardsExcluded.pop();
        emit IncludedInRewards(account);

        break;
      }
    }
  }

  /// @notice Transfers a standard amount of tokens with reflection applied
  /// @param sender The address sending the tokens
  /// @param recipient The address receiving the tokens
  /// @param tAmount The total token amount to transfer
  function _transferStandard(
    address sender,
    address recipient,
    uint256 tAmount
  ) private {
    uint256 tFee = calculateFee(tAmount, sender, recipient);
    uint256 tTransferAmount = tAmount - tFee;
    (uint256 rAmount, uint256 rFee, uint256 rTransferAmount) = _getRValues(
      tAmount,
      tFee,
      tTransferAmount
    );

    if (tAmount != 0) {
      _rUpdate(sender, recipient, rAmount, rTransferAmount);

      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tAmount);
    }
  }

  /// @notice Transfers a token amount from an excluded account
  /// @param sender The address sending the tokens
  /// @param recipient The address receiving the tokens
  /// @param tAmount The total token amount to transfer
  function _transferFromExcluded(
    address sender,
    address recipient,
    uint256 tAmount
  ) private {
    uint256 tFee = calculateFee(tAmount, sender, recipient);
    uint256 tTransferAmount = tAmount - tFee;
    (uint256 rAmount, uint256 rFee, uint256 rTransferAmount) = _getRValues(
      tAmount,
      tFee,
      tTransferAmount
    );

    if (tAmount != 0) {
      _rUpdate(sender, recipient, rAmount, rTransferAmount);
      _tOwned[sender] = _tOwned[sender] - (tAmount);

      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tAmount);
    }
  }

  /// @notice Transfers a token amount to an excluded account
  /// @param sender The address sending the tokens
  /// @param recipient The address receiving the tokens
  /// @param tAmount The total token amount to transfer
  function _transferToExcluded(
    address sender,
    address recipient,
    uint256 tAmount
  ) private {
    uint256 tFee = calculateFee(tAmount, sender, recipient);
    uint256 tTransferAmount = tAmount - tFee;
    (uint256 rAmount, uint256 rFee, uint256 rTransferAmount) = _getRValues(
      tAmount,
      tFee,
      tTransferAmount
    );

    if (tAmount != 0) {
      _rUpdate(sender, recipient, rAmount, rTransferAmount);
      _tOwned[recipient] = _tOwned[recipient] + (tTransferAmount);

      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tAmount);
    }
  }

  /// @notice Transfers a token amount between two excluded accounts
  /// @param sender The address sending the tokens
  /// @param recipient The address receiving the tokens
  /// @param tAmount The total token amount to transfer
  function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
    uint256 tFee = calculateFee(tAmount, sender, recipient);
    uint256 tTransferAmount = tAmount - tFee;
    (uint256 rAmount, uint256 rFee, uint256 rTransferAmount) = _getRValues(
      tAmount,
      tFee,
      tTransferAmount
    );

    if (tAmount != 0) {
      _rUpdate(sender, recipient, rAmount, rTransferAmount);
      _tOwned[sender] = _tOwned[sender] - (tAmount);
      _tOwned[recipient] = _tOwned[recipient] + (tTransferAmount);

      _reflectFee(rFee, tFee);
      emit Transfer(sender, recipient, tAmount);
    }
  }

  /// @notice Reflects the fee to all holders by deducting it from the total reflections
  /// @param rFee The reflection fee amount
  /// @param tFee The token fee amount
  function _reflectFee(uint256 rFee, uint256 tFee) private {
    _rTotal = _rTotal - rFee;
    _tFeeTotal = _tFeeTotal + tFee;
  }

  /// @notice Calculates the reflection fee from a token amount
  /// @param amount The token amount to calculate the fee from
  /// @param sender The address of the sender
  /// @param recipient The address of the recipient
  /// @return The calculated fee amount
  function calculateFee(uint256 amount, address sender, address recipient) private view returns (uint256) {
    if (_isRewardsExcluded[sender] || _isRewardsExcluded[recipient]) {
      return 0;
    } else {
      return (amount * tFeeBPS) / BPS_DIVISOR;
    }
  }

  /// @notice Transfers tokens without applying reflection fees
  /// @param from The address to transfer tokens from
  /// @param to The address to transfer tokens to
  /// @param tAmount The total token amount to transfer
  function _transferNonReflectedTax(
    address from,
    address to,
    uint256 tAmount
  ) internal {
    if (isReflective) {
      if (tAmount != 0) {
        uint256 currentRate = _getRate();
        uint256 rAmount = tAmount * currentRate;

        _rUpdate(from, to, rAmount, rAmount);
        emit Transfer(from, to, tAmount);
      }
    } else {
      super._transfer(from, to, tAmount);
    }
  }

  /// @notice Retrieves the reflection values from token values
  /// @param tAmount The token amount
  /// @param tFee The token fee amount
  /// @param tTransferAmount The transfer amount
  /// @return The reflection values (rAmount, rFee, rTransferAmount)
  function _getRValues(
    uint256 tAmount,
    uint256 tFee,
    uint256 tTransferAmount
  ) private view returns (uint256, uint256, uint256) {
    uint256 currentRate = _getRate();
    uint256 rAmount = tAmount * currentRate;
    uint256 rFee = tFee * currentRate;
    uint256 rTransferAmount = tTransferAmount * currentRate;

    return (rAmount, rFee, rTransferAmount);
  }

  /// @notice Retrieves the current reflection rate
  /// @return The current reflection rate
  function _getRate() private view returns (uint256) {
    (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
    return rSupply / tSupply;
  }

  /// @notice Retrieves the current reflection and token supplies
  /// @return The current reflection and token supplies
  function _getCurrentSupply() private view returns (uint256, uint256) {
    return (_rTotal, _tTotal());
  }

  /// @notice Updates the reflection balances for a transfer
  /// @param sender The address sending the tokens
  /// @param recipient The address receiving the tokens
  /// @param rSubAmount The amount to be deducted from the sender
  /// @param rTransferAmount The amount to be added to the recipient
  function _rUpdate(
    address sender,
    address recipient,
    uint256 rSubAmount,
    uint256 rTransferAmount
  ) private {
    uint256 fromBalance = _rOwned[sender];
    if (fromBalance < rSubAmount) {
      revert ERC20InsufficientBalance(recipient, fromBalance, rSubAmount);
    }
    _rOwned[sender] = _rOwned[sender] - rSubAmount;
    _rOwned[recipient] = _rOwned[recipient] + rTransferAmount;
  }
}

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