Token

{{
  "language": "Solidity",
  "sources": {
    "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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.
 *
 * The initial owner is set to the address provided by the deployer. 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable
    struct OwnableStorage {
        address _owner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;

    function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
        assembly {
            $.slot := OwnableStorageLocation
        }
    }

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    function __Ownable_init(address initialOwner) internal onlyInitializing {
        __Ownable_init_unchained(initialOwner);
    }

    function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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) {
        OwnableStorage storage $ = _getOwnableStorage();
        return $._owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        OwnableStorage storage $ = _getOwnableStorage();
        address oldOwner = $._owner;
        $._owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
"
    },
    "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}
"
    },
    "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
import {Initializable} from "../../proxy/utils/Initializable.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}.
 *
 * 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.
 */
abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
    /// @custom:storage-location erc7201:openzeppelin.storage.ERC20
    struct ERC20Storage {
        mapping(address account => uint256) _balances;

        mapping(address account => mapping(address spender => uint256)) _allowances;

        uint256 _totalSupply;

        string _name;
        string _symbol;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00;

    function _getERC20Storage() private pure returns (ERC20Storage storage $) {
        assembly {
            $.slot := ERC20StorageLocation
        }
    }

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        ERC20Storage storage $ = _getERC20Storage();
        $._name = name_;
        $._symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        ERC20Storage storage $ = _getERC20Storage();
        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 returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` 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 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        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 `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` 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.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        ERC20Storage storage $ = _getERC20Storage();
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            $._totalSupply += value;
        } else {
            uint256 fromBalance = $._balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                $._balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                $._totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                $._balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` 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.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        ERC20Storage storage $ = _getERC20Storage();
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        $._allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}
"
    },
    "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    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;
    }
}
"
    },
    "@openzeppelin/contracts/interfaces/draft-IERC6093.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}
"
    },
    "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
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);
}
"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}
"
    },
    "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol": {
      "content": "pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}
"
    },
    "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol": {
      "content": "pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
"
    },
    "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol": {
      "content": "pragma solidity >=0.6.2;

import './IUniswapV2Router01.sol';

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}
"
    },
    "contracts/interfaces/IDataStore.sol": {
      "content": "// SPDX-License-Identifier: None

pragma solidity ^0.8.24;

interface IDataStoreResponse {
    struct DataStoreAddressResponse {
        address locker;
        address payable proofWallet;
        address payable proofStaking;
        address proofPassNFT;
        address router;
    }

    struct DataStoreLimitsResponse {
        uint initMaxTx;
        uint swapTokensAtAmount;
        uint maxTxUpper;
        uint maxTxLower;
        uint maxWalletUpper;
        uint maxWalletLower;
        uint maxBuyFee;
        uint maxSellFee;
        uint denominator;
    }
}

interface IDataStore is IDataStoreResponse {
    function getAddresses(string[] memory addrKeys) external view returns (address[] memory);
    function getUints(string[] memory uintKeys) external view returns (uint256[] memory);
    function getPlatformAddresses() external view returns (DataStoreAddressResponse memory);
    function getLimits() external view returns (DataStoreLimitsResponse memory);
}"
    },
    "contracts/interfaces/IERC721A.sol": {
      "content": "// SPDX-License-Identifier: None

pragma solidity ^0.8.24;

interface IERC721A {
    function totalSupply() external returns (uint256);
    function ownerOf(uint256) external returns (address);
}"
    },
    "contracts/interfaces/ITeamFinanceLocker.sol": {
      "content": "// SPDX-License-Identifier: None

pragma solidity ^0.8.24;

interface ITeamFinanceLocker {
    function lockToken(
        address _tokenAddress,
        address _withdrawalAddress,
        uint256 _amount,
        uint256 _unlockTime,
        bool _mintNFT, 
        address referrer
    ) external payable returns (uint256 _id);
}"
    },
    "contracts/interfaces/ITokenWhitelist.sol": {
      "content": "// SPDX-License-Identifier: None

pragma solidity ^0.8.24;

import "./IDataStore.sol";

interface ITokenWhitelist is IDataStoreResponse {
    
    struct TokenInfo {
        string name;
        string symbol;
        address owner;
        address mainWallet;
        address secondaryWallet;
        uint256 totalSupply;
        uint256 percentToLP;
        uint256 lpLockDuration;
        uint256 initMaxWallet;
        FeeInfo buyFees;
        FeeInfo sellFees;
        address[] whitelist;
        uint256 whitelistDuration;
        address rewardToken;
    }

    struct FeeInfo {
        uint256 main;
        uint256 secondary;
        uint256 liquidity;
        uint256 proof;
        uint256 total;
    }

    error ExceedsMaxTxAmount();
    error ExceedsMaxWalletAmount();
    error InvalidConfiguration();
    error TradingNotEnabled();
    error NotWhitelisted();

}"
    },
    "contracts/ProofStandardWhitelist.sol": {
      "content": "// SPDX-License-Identifier: None

pragma solidity ^0.8.24;

import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol";
import "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol";
import "./interfaces/IERC721A.sol";
import "./interfaces/ITeamFinanceLocker.sol";
import "./interfaces/ITokenWhitelist.sol";

/// This token was incubated and launched by PROOF: https://proofplatform.io/projects. The smart contract is audited by SourceHat: https://sourcehat.com/

contract Token is ITokenWhitelist, Initializable, ERC20Upgradeable, OwnableUpgradeable {
    
    struct UserInfo {
        bool isFeeExempt;
        bool isTxLimitExempt;
        bool isWhitelisted;
    }

    IUniswapV2Router02 public uniswapV2Router;
    address public pair;

    address payable public mainWallet;
    address payable public secondaryWallet;

    IERC721A public proofPassNFT;

    bool public isWhitelistActive;
    uint256 public whitelistEndTime;
    uint256 public whitelistDuration;
    uint256 public launchedAt;

    uint256 public maxWallet;
    uint256 public initMaxWallet;
    bool public checkMaxHoldings = true;
    bool public maxWalletChanged;

    uint256 public swapping;
    bool public swapEnabled;
    uint256 public swapTokensAtAmount;

    FeeInfo public feeTokens;
    FeeInfo public buyFees;
    FeeInfo public sellFees;

    uint256 public restingBuyTotal;
    uint256 public restingSellTotal;

    bool public buyTaxesSettled;
    bool public sellTaxesSettled;

    bool public proofFeeReduced;
    bool public proofFeeRemoved;

    bool public cancelled;

    uint256 public lockID;
    uint256 public lpLockDuration;

    mapping (address => UserInfo) public userInfo;
    mapping (uint256 => uint256) public swapThrottle;
    uint256 public maxSwapsPerBlock;

    IDataStore public immutable DATA_STORE;
    DataStoreAddressResponse public addresses;
    DataStoreLimitsResponse public limits;

    event SwapAndLiquify(uint256 tokensAutoLiq, uint256 ethAutoLiq);
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event TokenCancelled(uint256 returnedETH);

    constructor(IDataStore dataStore) {
        DATA_STORE = dataStore;
        _disableInitializers();
    }
    
    function initialize(bytes calldata params) initializer public payable lockTheSwap {
        TokenInfo memory token = abi.decode(params, (TokenInfo));
        __ERC20_init(token.name, token.symbol);
        __Ownable_init(token.owner);

        DataStoreLimitsResponse memory _limits = DATA_STORE.getLimits();
        limits = _limits;
        
        (token.buyFees.proof, token.sellFees.proof) = (2,2);
        _validateFees(token.buyFees, token.sellFees);
        restingBuyTotal = token.buyFees.total;
        restingSellTotal = token.sellFees.total;

        token.buyFees.main = 15 - token.buyFees.proof - token.buyFees.secondary - token.buyFees.liquidity;
        token.buyFees.total = 15;
        token.sellFees.main = 20 - token.sellFees.proof - token.sellFees.secondary - token.sellFees.liquidity;
        token.sellFees.total = 20;

        buyFees = token.buyFees;
        sellFees = token.sellFees;

        // set addresses
        mainWallet = payable(token.mainWallet);
        secondaryWallet = payable(token.secondaryWallet);

        DataStoreAddressResponse memory _addresses = DATA_STORE.getPlatformAddresses();
        addresses = _addresses;

        proofPassNFT = IERC721A(_addresses.proofPassNFT);

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_addresses.router);
        uniswapV2Router = _uniswapV2Router;

        pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());

        // set basic data

        lpLockDuration = token.lpLockDuration;
        swapTokensAtAmount = token.totalSupply * _limits.swapTokensAtAmount / _limits.denominator; // 125 / 100000

        initMaxWallet = token.initMaxWallet;
        maxWallet = token.totalSupply * token.initMaxWallet / 100000; // 100 = .1%
        maxSwapsPerBlock = 4;

        userInfo[address(this)] = UserInfo(true, true, true);
        userInfo[pair].isTxLimitExempt = true;
        userInfo[pair].isWhitelisted = true;

        whitelistDuration = token.whitelistDuration;
        _setWhitelisted(token.whitelist);

        uint256 amountToPair = token.totalSupply * token.percentToLP / 100;
        super._update(address(0), address(this), amountToPair); // mint to contract for liquidity
        super._update(address(0), owner(), token.totalSupply - amountToPair); // mint to owner
        _approve(address(this), address(uniswapV2Router), type(uint256).max);
        addLiquidity(amountToPair, msg.value, address(this));
    }

    function launch(uint256 bundleBuyAmount) external payable onlyOwner lockTheSwap {
        if (launchedAt != 0 || cancelled) {
            revert InvalidConfiguration();
        }

        // enable trading
        checkMaxHoldings = true;
        swapEnabled = true;
        whitelistEndTime = block.timestamp + whitelistDuration;
        isWhitelistActive = true;
        launchedAt = block.timestamp;

        if (bundleBuyAmount != 0) {
            //execute bundle buy
            address[] memory path = new address[](2);
            path[0] = uniswapV2Router.WETH();
            path[1] = address(this);
            uniswapV2Router.swapExactETHForTokens{ value: bundleBuyAmount }(
                0, 
                path, 
                msg.sender, 
                block.timestamp
            );
        }

        // add NFT snapshot
        uint256 len = proofPassNFT.totalSupply() + 1;
        for (uint256 i = 1; i < len; ) {
            userInfo[proofPassNFT.ownerOf(i)].isWhitelisted = true;
            unchecked { ++i; }
        }

        // lock liquidity
        uint256 lpBalance = IERC20(pair).balanceOf(address(this));
        IERC20(pair).approve(addresses.locker, lpBalance);
        
        lockID = ITeamFinanceLocker(addresses.locker).lockToken{value: address(this).balance}(pair, msg.sender, lpBalance, block.timestamp + lpLockDuration, false, address(0));
    }

    function cancel() external onlyOwner lockTheSwap {
        if (launchedAt != 0) {
            revert InvalidConfiguration();
        }

        IERC20(pair).approve(address(uniswapV2Router), IERC20(pair).balanceOf(address(this)));
        (uint256 ethAmt) = uniswapV2Router.removeLiquidityETHSupportingFeeOnTransferTokens(
            address(this),
            IERC20(pair).balanceOf(address(this)),
            0, // liq pool should be untouchable
            0, // liq pool should be untouchable
            msg.sender,
            block.timestamp
        );
        emit TokenCancelled(ethAmt);
        
        cancelled = true;

        // send the tokens and eth back to the owner
        uint256 bal = address(this).balance;
        if (bal > 0) {
            address(msg.sender).call{value: bal}("");
        }
    }

    function _update(
        address from,
        address to,
        uint256 amount
    ) internal override {
        if (swapping == 2 || from == owner() || to == owner() || 
          from == address(this) || to == address(this) || amount == 0) {
            super._update(from, to, amount);
            return;
        }

        if (launchedAt == 0) {
            revert TradingNotEnabled();
        }

        UserInfo storage sender = userInfo[from];
        UserInfo storage recipient = userInfo[to];

        if (isWhitelistActive) {
            if (block.timestamp < whitelistEndTime) {
                if (!sender.isWhitelisted || !recipient.isWhitelisted)
                {
                    revert NotWhitelisted();
                }
            } else {
                isWhitelistActive = false;
            }
        }

        //start at anywhere from 0.1% to 0.5%, increase by 0.1%, every 10 blocks, until it reaches 1%
        if (!maxWalletChanged) {
            uint256 secondsPassed = block.timestamp - launchedAt;
            uint256 percentage = initMaxWallet + (100 * (secondsPassed / 120));
            if (percentage > 950) {
                percentage = 1000;
                maxWalletChanged = true;
                checkMaxHoldings = false;
                maxWallet = totalSupply();
            } else {
                uint256 newMax = totalSupply() * percentage / 100000;
                if (newMax != maxWallet) {
                    maxWallet = newMax;
                }
            }
        }

        if (checkMaxHoldings) {
            if (!recipient.isTxLimitExempt && amount + balanceOf(to) > maxWallet) {
                revert ExceedsMaxWalletAmount();
            }
        }

        uint256 total = feeTokens.total;
        bool canSwap = total >= swapTokensAtAmount;

        if (
            canSwap &&
            swapEnabled &&
            to == pair &&
            swapThrottle[block.number] < maxSwapsPerBlock
        ) {
            ++swapThrottle[block.number];
            processFees(total, swapTokensAtAmount);
        }

        if (!sender.isFeeExempt && !recipient.isFeeExempt) {

            FeeInfo storage _buyFees = buyFees;
            FeeInfo storage _sellFees = sellFees;

            if (!proofFeeRemoved) {
                uint256 secondsPassed = block.timestamp - launchedAt;
                if (!proofFeeReduced && secondsPassed > 1 days) {
                    uint256 totalBuy = _buyFees.total - _buyFees.proof;
                    if (totalBuy == 0) {
                        _buyFees.total = 0;
                        _buyFees.proof = 0;
                    } else {
                        buyFees.main = _buyFees.main + 1; //move proof fee to main fee, total doesn't change
                        _buyFees.proof = 1; //decrementing proof fee by 1%
                    }
                    uint256 totalSell = _sellFees.total - _sellFees.proof;
                    if (totalSell == 0) {
                        _sellFees.total = 0;
                        _sellFees.proof = 0;
                    } else {
                        _sellFees.main = _sellFees.main + 1; //same as the buy fee logic
                        _sellFees.proof = 1;
                    }
                    proofFeeReduced = true;
                } else if (secondsPassed > 31 days) {
                    //move proof fee to main fee
                    _buyFees.main += _buyFees.proof; 
                    _sellFees.main += _sellFees.proof; 
                    _buyFees.proof = 0;
                    _sellFees.proof = 0;
                    proofFeeRemoved = true;
                } else {
                    if (!buyTaxesSettled) {
                        uint256 restingTotal = restingBuyTotal;
                        uint256 feeTotal = restingTotal;
                        if (secondsPassed < 1801) {
                            //fee starts at 15%, decreases by 1% every 2 minutes until we reach the restingTotal.
                            feeTotal = 15 - (secondsPassed / 120);
                        }
                        if (feeTotal <= restingTotal) {
                            _buyFees.total = restingTotal;
                            _buyFees.main = restingTotal - _buyFees.liquidity - _buyFees.secondary - _buyFees.proof;
                            buyTaxesSettled = true;
                        } else if (feeTotal != _buyFees.total) {
                            _buyFees.total = feeTotal;
                            //extra fees get sent to the main wallet
                            _buyFees.main = feeTotal - _buyFees.liquidity - _buyFees.secondary - _buyFees.proof;
                        }
                    }
                    if (!sellTaxesSettled) {
                        uint256 restingTotal = restingSellTotal;
                        uint256 feeTotal = restingTotal;
                        if (secondsPassed < 2401) {
                            feeTotal = 20 - (secondsPassed / 120);
                        }
                        if (feeTotal <= restingTotal) {
                            _sellFees.total = restingTotal;
                            _sellFees.main = restingTotal - _sellFees.liquidity - _sellFees.secondary - _sellFees.proof;
                            sellTaxesSettled = true;
                        } else if (feeTotal != _sellFees.total) {
                            _sellFees.total = feeTotal;
                            _sellFees.main = feeTotal - _sellFees.liquidity - _sellFees.secondary - _sellFees.proof;
                        }
                    }
                }
            }

            uint256 fees;
            if (to == pair) { //sell
                fees = _calculateFees(_sellFees, amount);
            } else if (from == pair) { //buy
                fees = _calculateFees(_buyFees, amount);
            }
            if (fees > 0) {
                amount -= fees;
                super._update(from, address(this), fees);
            }
        }

        super._update(from, to, amount);

    }

    function _calculateFees(FeeInfo memory feeRate, uint256 amount) internal returns (uint256 fees) {
        if (feeRate.total != 0) {
            fees = amount * feeRate.total / 100;
            
            FeeInfo storage _feeTokens = feeTokens;
            _feeTokens.main += fees * feeRate.main / feeRate.total;
            _feeTokens.secondary += fees * feeRate.secondary / feeRate.total;
            _feeTokens.liquidity += fees * feeRate.liquidity / feeRate.total;
            _feeTokens.proof += fees * feeRate.proof / feeRate.total;
            _feeTokens.total += fees;
        }
    }

    function processFees(uint256 total, uint256 amountToSwap) internal lockTheSwap {
        FeeInfo storage _feeTokens = feeTokens;

        FeeInfo memory swapTokens;
        swapTokens.main = amountToSwap * _feeTokens.main / total;
        swapTokens.secondary = amountToSwap * _feeTokens.secondary / total;
        swapTokens.liquidity = amountToSwap * _feeTokens.liquidity / total;
        swapTokens.proof = amountToSwap * _feeTokens.proof / total;

        uint256 amountToPair = swapTokens.liquidity / 2;

        swapTokens.total = amountToSwap - amountToPair;

        uint256 ethBalance = swapTokensForETH(swapTokens.total);

        FeeInfo memory ethSplit;

        ethSplit.main = ethBalance * swapTokens.main / swapTokens.total;
        if (ethSplit.main > 0) {
           address(mainWallet).call{value: ethSplit.main}("");
        }

        ethSplit.secondary = ethBalance * swapTokens.secondary / swapTokens.total;
        if (ethSplit.secondary > 0) {
            address(secondaryWallet).call{value: ethSplit.secondary}("");
        }

        ethSplit.proof = ethBalance * swapTokens.proof / swapTokens.total;
        if (ethSplit.proof > 0) {
            uint256 revenueSplit = ethSplit.proof / 2;
            address(addresses.proofStaking).call{value: revenueSplit}("");
            address(addresses.proofWallet).call{value: ethSplit.proof - revenueSplit}("");
        }

        uint256 amountPaired;
        ethSplit.liquidity = address(this).balance;
        if (amountToPair > 0 && ethSplit.liquidity > 0) {
            amountPaired = addLiquidity(amountToPair, ethSplit.liquidity, address(0xdead));
            emit SwapAndLiquify(amountToPair, ethSplit.liquidity);
        }

        uint256 liquidityAdjustment = swapTokens.liquidity - (amountToPair - amountPaired);

        _feeTokens.main -= swapTokens.main;
        _feeTokens.secondary -= swapTokens.secondary;
        _feeTokens.liquidity -= liquidityAdjustment;
        _feeTokens.proof -= swapTokens.proof;
        _feeTokens.total -= swapTokens.main + swapTokens.secondary + swapTokens.proof + liquidityAdjustment;
    }

    function swapTokensForETH(uint256 tokenAmount) internal returns (uint256 ethBalance) {
        uint256 ethBalBefore = address(this).balance;

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );

        ethBalance = address(this).balance - ethBalBefore;
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount, address recipient) private returns (uint256) {
        (uint256 amountA,,) = uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            recipient,
            block.timestamp
        );
        return amountA;
    }

    function changeFees(
        uint256 liquidityBuy,
        uint256 mainBuy,
        uint256 secondaryBuy,
        uint256 liquiditySell,
        uint256 mainSell,
        uint256 secondarySell
    ) external onlyOwner {
        if (!buyTaxesSettled || !sellTaxesSettled) {
            revert InvalidConfiguration();
        }
        FeeInfo memory _buyFees;
        _buyFees.liquidity = liquidityBuy;
        _buyFees.main = mainBuy;
        _buyFees.secondary = secondaryBuy;

        FeeInfo memory _sellFees;
        _sellFees.liquidity = liquiditySell;
        _sellFees.main = mainSell;
        _sellFees.secondary = secondarySell;

        (_buyFees.proof, _sellFees.proof) = launchedAt != 0 ? _calculateProofFee() : (2,2);
        _validateFees(_buyFees, _sellFees);
        buyFees = _buyFees;
        sellFees = _sellFees;
    }

    function _calculateProofFee() internal returns (uint256, uint256) {
        uint256