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// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { Address } from "@openzeppelin/contracts/utils/Address.sol";
import { ECDSA } from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import { MessageHashUtils } from "@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol";
import { ReentrancyGuardTransient } from "@openzeppelin/contracts/utils/ReentrancyGuardTransient.sol";

import { Rounds, Ownable } from "./Rounds.sol";
import { ILockup, IPreSale } from "./ILockup.sol";
import { IClaims, ClaimInfo } from "./IClaims.sol";

import { ETH, PPM, ZeroAddress, ZeroLengthArray, IdenticalValue, ArrayLengthMismatch, InvalidSignature, InvalidData } from "./Common.sol";

/// @title PreSale contract
/// @notice Implements presale of the token
/// @dev The presale contract allows you to purchase presale token with allowed tokens
/// and there will be certain rounds
contract PreSale is IPreSale, Rounds, ReentrancyGuardTransient {
    using SafeERC20 for IERC20;
    using Address for address payable;

    /// @member nftAmounts The nft amounts
    /// @member roundPrice The round number
    struct ClaimNFT {
        uint256[] nftAmounts;
        uint256 roundPrice;
    }

    /// @member price The price of token from price feed
    /// @member normalizationFactorForToken The normalization factor to achieve return value of 18 decimals ,while calculating token purchases and always with different token decimals
    /// @member normalizationFactorForNFT The normalization factor is the value which helps us to convert decimals of USDT to purchase token decimals and always with different token decimals
    struct TokenInfo {
        uint256 latestPrice;
        uint8 normalizationFactorForToken;
        uint8 normalizationFactorForNFT;
    }

    /// @member projectAmount The amount tansferred to project wallet
    /// @member platformAmount The amount tansferred to platform wallet
    /// @member burnAmount The amount tansferred to burn wallet
    /// @member equivalence The amount tansferred to claims contract
    struct TransferInfo {
        uint256 projectAmount;
        uint256 platformAmount;
        uint256 burnAmount;
        uint256 equivalence;
    }

    /// @dev To achieve return value of required decimals during calculation
    uint256 private constant NORMALIZARION_FACTOR = 1e30;

    /// @dev The constant value helps in calculating project amount
    uint256 private constant PROJECT_PERCENTAGE_PPM = 630_000;

    /// @dev The constant value helps in calculating discount
    uint256 private constant FIRST_ROUND_PPM = 200_000;

    /// @dev The constant value helps in calculating discount
    uint256 private constant OTHER_ROUND_PPM = 70_000;

    /// @dev The constant value helps in calculating amount
    uint256 private constant CLAIMS_PERCENTAGE_PPM = 250_000;

    /// @dev The constant value helps in calculating plaform amount
    uint256 private constant PLATFORM_PERCENTAGE_PPM = 100_000;

    /// @dev The constant value helps in calculating burn amount
    uint256 private constant BURN_PERCENTAGE_PPM = 20_000;

    /// @dev The max leader's wallet length
    uint256 private constant LEADERS_LENGTH = 5;

    /// @notice The maximum number of tokens that will be sold in presale
    uint256 public immutable maxCap;

    /// @notice The address of claims contract
    IClaims public immutable claimsContract;

    /// @notice The address of lockup contract
    ILockup public immutable lockup;

    /// @notice That buyEnabled or not
    bool public buyEnabled = true;

    /// @notice The address of signer wallet
    address public signerWallet;

    /// @notice The address of the project wallet
    address public projectWallet;

    /// @notice The address of the platform wallet
    address public platformWallet;

    /// @notice The address of the burn wallet
    address public burnWallet;

    /// @notice Sum of tokens purchased in presale
    uint256 public totalPurchases;

    /// @notice The array of prices of each nft
    uint256[] public nftPricing;

    /// @notice Gives claim info of user in every round
    mapping(address => mapping(uint32 => uint256)) public claims;

    /// @notice Gives info about address's permission
    mapping(address => bool) public blacklistAddress;

    /// @notice Gives claim info of user nft in every round
    mapping(address => mapping(uint32 => ClaimNFT[])) public claimNFT;

    /// @dev Emitted when token is purchased with ETH
    event PurchasedWithETH(
        address indexed by,
        string code,
        uint256 amountPurchasedETH,
        uint32 indexed round,
        address[] leaders,
        uint256[] percentages,
        uint256 indexed roundPrice,
        uint256 tokenPurchased
    );

    /// @dev Emitted when presale tokens are purchased with any token
    event PurchasedWithToken(
        IERC20 indexed token,
        uint256 tokenPrice,
        address indexed by,
        string code,
        uint256 amountPurchased,
        uint256 tokenPurchased,
        uint32 indexed round,
        address[] leaders,
        uint256[] percentages
    );

    /// @dev Emitted when NFT is purchased with ETH
    event PurchasedWithETHForNFT(
        address indexed by,
        string code,
        uint256 amountInETH,
        uint256 ethPrice,
        uint32 indexed round,
        address[] leaders,
        uint256[] percentages,
        uint256 roundPrice,
        uint256[] nftAmounts
    );

    /// @dev Emitted when NFT is purchased with any token
    event PurchasedWithTokenForNFT(
        IERC20 indexed token,
        uint256 tokenPrice,
        address indexed by,
        string code,
        uint256 amountPurchased,
        uint32 indexed round,
        address[] leaders,
        uint256[] percentages,
        uint256 roundPrice,
        uint256[] nftAmounts
    );

    /// @dev Emitted when tokens are purchased with claim amount
    event PurchasedWithClaimAmount(
        address indexed by,
        uint256 amount,
        IERC20 token,
        uint32 indexed round,
        uint256 indexed tokenPrice,
        uint256 tokenPurchased
    );

    /// @dev Emitted when address of signer is updated
    event SignerUpdated(address oldSigner, address newSigner);

    /// @dev Emitted when address of platform wallet is updated
    event PlatformWalletUpdated(address oldPlatformWallet, address newPlatformWallet);

    /// @dev Emitted when address of project wallet is updated
    event ProjectWalletUpdated(address oldProjectWallet, address newProjectWallet);

    /// @dev Emitted when address of burn wallet is updated
    event BurnWalletUpdated(address oldBurnWallet, address newBurnWallet);

    /// @dev Emitted when blacklist access of address is updated
    event BlacklistUpdated(address which, bool accessNow);

    /// @dev Emitted when buying access changes
    event BuyEnableUpdated(bool oldAccess, bool newAccess);

    /// @dev Emitted when NFT prices are updated
    event PricingUpdated(uint256[] oldPrices, uint256[] newPrices);

    /// @notice Thrown when address is blacklisted
    error Blacklisted();

    /// @notice Thrown when buy is disabled
    error BuyNotEnabled();

    /// @notice Thrown when sign deadline is expired
    error DeadlineExpired();

    /// @notice Thrown when Eth price suddenly drops while purchasing tokens
    error UnexpectedPriceDifference();

    /// @notice Thrown when value to transfer is zero
    error ZeroValue();

    /// @notice Thrown when price from price feed returns zero
    error PriceNotFound();

    /// @notice Thrown when max cap is reached
    error MaxCapReached();

    /// @notice Thrown when caller is not claims contract
    error OnlyClaims();

    /// @notice Thrown when purchase amount is less than required
    error InvalidPurchase();

    /// @notice Thrown when both price feed and reference price are non zero
    error CodeSyncIssue();

    /// @notice Thrown if the price is not updated
    error PriceNotUpdated();

    /// @notice Thrown if the sum of agents percentage is greater than required
    error InvalidPercentage();

    /// @notice Thrown if the roundId of price is not updated
    error RoundIdNotUpdated();

    /// @notice Thrown when array length of leaders are greater than required
    error InvalidArrayLength();

    /// @notice Thrown when array is not sorted
    error ArrayNotSorted();

    /// @dev Restricts when updating wallet/contract address with zero address
    modifier checkAddressZero(address which) {
        _checkAddressZero(which);
        _;
    }

    /// @dev Ensures that buy is enabled when buying
    modifier canBuy() {
        _canBuy();
        _;
    }

    /// @dev Constructor
    /// @param projectWalletAddress The address of project wallet
    /// @param platformWalletAddress The address of platform wallet
    /// @param burnWalletAddress The address of burn wallet
    /// @param signerAddress The address of signer wallet
    /// @param claimsContractAddress The address of claim contract
    /// @param lockupContractAddress The address of lockup contract
    /// @param owner The address of owner wallet
    /// @param lastRound The last round created
    /// @param nftPrices The prices of nfts
    /// @param initMaxCap The max cap of gems token
    constructor(
        address projectWalletAddress,
        address platformWalletAddress,
        address burnWalletAddress,
        address signerAddress,
        IClaims claimsContractAddress,
        ILockup lockupContractAddress,
        address owner,
        uint32 lastRound,
        uint256[] memory nftPrices,
        uint256 initMaxCap
    )
        Rounds(lastRound)
        Ownable(owner)
        checkAddressZero(signerAddress)
        checkAddressZero(address(claimsContractAddress))
        checkAddressZero(address(lockupContractAddress))
        checkAddressZero(projectWalletAddress)
        checkAddressZero(platformWalletAddress)
        checkAddressZero(burnWalletAddress)
    {
        if (nftPrices.length == 0) {
            revert ZeroLengthArray();
        }

        for (uint256 i = 0; i < nftPrices.length; ++i) {
            _checkValue(nftPrices[i]);
        }

        projectWallet = projectWalletAddress;
        platformWallet = platformWalletAddress;
        burnWallet = burnWalletAddress;
        signerWallet = signerAddress;
        claimsContract = claimsContractAddress;
        lockup = lockupContractAddress;
        nftPricing = nftPrices;
        _checkValue(initMaxCap);
        maxCap = initMaxCap;
    }

    /// @notice Changes access of buying
    /// @param enabled The decision about buying
    function enableBuy(bool enabled) external onlyOwner {
        if (buyEnabled == enabled) {
            revert IdenticalValue();
        }

        emit BuyEnableUpdated({ oldAccess: buyEnabled, newAccess: enabled });
        buyEnabled = enabled;
    }

    /// @notice Changes signer wallet address
    /// @param newSigner The address of the new signer wallet
    function changeSigner(address newSigner) external checkAddressZero(newSigner) onlyOwner {
        address oldSigner = signerWallet;

        if (oldSigner == newSigner) {
            revert IdenticalValue();
        }

        emit SignerUpdated({ oldSigner: oldSigner, newSigner: newSigner });
        signerWallet = newSigner;
    }

    /// @notice Changes platform wallet address
    /// @param newPlatformWallet The address of the new platform wallet
    function updatePlatformWallet(address newPlatformWallet) external checkAddressZero(newPlatformWallet) onlyOwner {
        address oldPlatformWallet = platformWallet;

        if (oldPlatformWallet == newPlatformWallet) {
            revert IdenticalValue();
        }

        emit PlatformWalletUpdated({ oldPlatformWallet: oldPlatformWallet, newPlatformWallet: newPlatformWallet });
        platformWallet = newPlatformWallet;
    }

    /// @notice Changes project wallet address
    /// @param newProjectWallet The address of the new project wallet
    function updateProjectWallet(address newProjectWallet) external checkAddressZero(newProjectWallet) onlyOwner {
        address oldProjectWallet = projectWallet;

        if (oldProjectWallet == newProjectWallet) {
            revert IdenticalValue();
        }

        emit ProjectWalletUpdated({ oldProjectWallet: oldProjectWallet, newProjectWallet: newProjectWallet });
        projectWallet = newProjectWallet;
    }

    /// @notice Changes burn wallet address
    /// @param newBurnWallet The address of the new burn wallet
    function updateBurnWallet(address newBurnWallet) external checkAddressZero(newBurnWallet) onlyOwner {
        address oldBurnWallet = burnWallet;

        if (oldBurnWallet == newBurnWallet) {
            revert IdenticalValue();
        }

        emit BurnWalletUpdated({ oldBurnWallet: oldBurnWallet, newBurnWallet: newBurnWallet });
        burnWallet = newBurnWallet;
    }

    /// @notice Changes the access of any address in contract interaction
    /// @param which The address for which access is updated
    /// @param access The access decision of `which` address
    function updateBlackListedUser(address which, bool access) external checkAddressZero(which) onlyOwner {
        bool oldAccess = blacklistAddress[which];

        if (oldAccess == access) {
            revert IdenticalValue();
        }

        emit BlacklistUpdated({ which: which, accessNow: access });
        blacklistAddress[which] = access;
    }

    /// @notice Changes the nft prices
    /// @param newPrices The new prices of nfts
    function updatePricing(uint256[] calldata newPrices) external onlyOwner {
        for (uint256 i = 0; i < newPrices.length; ++i) {
            _checkValue(newPrices[i]);
        }

        emit PricingUpdated({ oldPrices: nftPricing, newPrices: newPrices });

        nftPricing = newPrices;
    }

    /// @notice Purchases presale token with ETH
    /// @param code The code is used to verify signature of the user
    /// @param round The round in which user wants to purchase
    /// @param deadline The deadline is validity of the signature
    /// @param minAmountToken The minAmountToken user agrees to purchase
    /// @param indexes The indexes at which user has locked tokens
    /// @param leaders The indexes of leaders
    /// @param percentages The indexes of leaders percentage
    /// @param v The `v` signature parameter
    /// @param r The `r` signature parameter
    /// @param s The `s` signature parameter
    function purchaseTokenWithETH(
        string memory code,
        uint32 round,
        uint256 deadline,
        uint256 minAmountToken,
        uint256[] calldata indexes,
        address[] calldata leaders,
        uint256[] calldata percentages,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external payable nonReentrant canBuy {
        // The input must have been signed by the presale signer
        _validatePurchaseWithETH(msg.value, round, deadline, code, v, r, s);
        uint256 roundPrice = _getRoundPriceForToken(msg.sender, indexes, round, ETH);
        TokenInfo memory tokenInfo = getLatestPrice(ETH);

        if (tokenInfo.latestPrice == 0) {
            revert PriceNotFound();
        }

        TransferInfo memory transferInfo = _calculateTransferAmounts(msg.value, leaders, percentages);
        uint256 toReturn = _calculateAndUpdateTokenAmount(
            msg.value,
            tokenInfo.latestPrice,
            tokenInfo.normalizationFactorForToken,
            roundPrice
        );

        if (toReturn < minAmountToken) {
            revert UnexpectedPriceDifference();
        }

        _transferFundsETH(transferInfo);
        claims[msg.sender][round] += toReturn;
        _updateCommissions(leaders, percentages, msg.value, round, ETH);

        emit PurchasedWithETH({
            by: msg.sender,
            code: code,
            amountPurchasedETH: msg.value,
            round: round,
            leaders: leaders,
            percentages: percentages,
            roundPrice: roundPrice,
            tokenPurchased: toReturn
        });
    }

    /// @notice Purchases presale token with any token
    /// @param token The purchase token
    /// @param referenceNormalizationFactor The normalization factor
    /// @param referenceTokenPrice The current price of token in 10 decimals
    /// @param purchaseAmount The purchase amount
    /// @param minAmountToken The minAmountToken user agrees to purchase
    /// @param indexes The indexes at which user has locked tokens
    /// @param leaders The indexes of leaders
    /// @param percentages The indexes of leaders percentage
    /// @param code The code is used to verify signature of the user
    /// @param round The round in which user wants to purchase
    /// @param deadline The deadline is validity of the signature
    /// @param v The `v` signature parameter
    /// @param r The `r` signature parameter
    /// @param s The `s` signature parameter
    function purchaseTokenWithToken(
        IERC20 token,
        uint8 referenceNormalizationFactor,
        uint256 referenceTokenPrice,
        uint256 purchaseAmount,
        uint256 minAmountToken,
        uint256[] calldata indexes,
        address[] calldata leaders,
        uint256[] calldata percentages,
        string memory code,
        uint32 round,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external canBuy nonReentrant {
        // The input must have been signed by the presale signer
        _validatePurchaseWithToken(
            token,
            round,
            deadline,
            code,
            referenceTokenPrice,
            referenceNormalizationFactor,
            v,
            r,
            s
        );
        uint256 roundPrice = _getRoundPriceForToken(msg.sender, indexes, round, token);
        (uint256 latestPrice, uint8 normalizationFactor) = _validatePrice(
            token,
            referenceTokenPrice,
            referenceNormalizationFactor
        );
        TransferInfo memory transferInfo = _calculateTransferAmounts(purchaseAmount, leaders, percentages);
        uint256 toReturn = _calculateAndUpdateTokenAmount(purchaseAmount, latestPrice, normalizationFactor, roundPrice);

        if (toReturn < minAmountToken) {
            revert UnexpectedPriceDifference();
        }

        _transferFundsToken(token, transferInfo);
        claims[msg.sender][round] += toReturn;
        _updateCommissions(leaders, percentages, purchaseAmount, round, token);

        emit PurchasedWithToken({
            token: token,
            tokenPrice: latestPrice,
            by: msg.sender,
            code: code,
            amountPurchased: purchaseAmount,
            tokenPurchased: toReturn,
            round: round,
            leaders: leaders,
            percentages: percentages
        });
    }

    /// @notice Purchases NFT with ETH
    /// @param code The code is used to verify signature of the user
    /// @param round The round in which user wants to purchase
    /// @param nftAmounts The nftAmounts is array of nfts selected
    /// @param deadline The deadline is validity of the signature
    /// @param indexes The indexes at which user has locked tokens
    /// @param leaders The indexes of leaders
    /// @param percentages The indexes of leaders percentage
    /// @param v The `v` signature parameter
    /// @param r The `r` signature parameter
    /// @param s The `s` signature parameter
    function purchaseNFTWithETH(
        string memory code,
        uint32 round,
        uint256[] calldata nftAmounts,
        uint256 deadline,
        uint256[] calldata indexes,
        address[] calldata leaders,
        uint256[] calldata percentages,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external payable canBuy nonReentrant {
        uint256[] memory nftPrices = nftPricing;
        _validateArrays(nftAmounts.length, nftPrices.length);
        // The input must have been signed by the presale signer
        _validatePurchaseWithETH(msg.value, round, deadline, code, v, r, s);
        TokenInfo memory tokenInfo = getLatestPrice(ETH);

        if (tokenInfo.latestPrice == 0) {
            revert PriceNotFound();
        }

        (uint256 roundPrice, uint256 value) = _processPurchaseNFT(
            ETH,
            tokenInfo.latestPrice,
            tokenInfo.normalizationFactorForNFT,
            round,
            indexes,
            nftAmounts,
            nftPrices
        );
        TransferInfo memory transferInfo = _calculateTransferAmounts(value, leaders, percentages);

        if (msg.value < value) {
            revert InvalidPurchase();
        }

        uint256 amountUnused = msg.value - value;

        if (amountUnused > 0) {
            payable(msg.sender).sendValue(amountUnused);
        }

        _transferFundsETH(transferInfo);
        _updateCommissions(leaders, percentages, value, round, ETH);

        emit PurchasedWithETHForNFT({
            by: msg.sender,
            code: code,
            amountInETH: value,
            ethPrice: tokenInfo.latestPrice,
            round: round,
            leaders: leaders,
            percentages: percentages,
            roundPrice: roundPrice,
            nftAmounts: nftAmounts
        });
    }

    /// @notice Purchases NFT with any token
    /// @param token The purchase token
    /// @param referenceTokenPrice The current price of token in 10 decimals
    /// @param referenceNormalizationFactor The normalization factor
    /// @param code The code is used to verify signature of the user
    /// @param round The round in which user wants to purchase
    /// @param leaders The indexes of leaders
    /// @param percentages The indexes of leaders percentage
    /// @param nftAmounts The nftAmounts is array of nfts selected
    /// @param deadline The deadline is validity of the signature
    /// @param indexes The indexes at which user has locked tokens
    /// @param v The `v` signature parameter
    /// @param r The `r` signature parameter
    /// @param s The `s` signature parameter
    function purchaseNFTWithToken(
        IERC20 token,
        uint256 referenceTokenPrice,
        uint8 referenceNormalizationFactor,
        string memory code,
        uint32 round,
        uint256[] calldata nftAmounts,
        uint256 deadline,
        uint256[] calldata indexes,
        address[] calldata leaders,
        uint256[] calldata percentages,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external canBuy nonReentrant {
        uint256[] memory nftPrices = nftPricing;
        _validateArrays(nftAmounts.length, nftPrices.length);
        // The input must have been signed by the presale signer
        _validatePurchaseWithToken(
            token,
            round,
            deadline,
            code,
            referenceTokenPrice,
            referenceNormalizationFactor,
            v,
            r,
            s
        );
        TokenInfo memory tokenInfo = getLatestPrice(token);

        if (tokenInfo.latestPrice != 0) {
            if (referenceTokenPrice != 0 || referenceNormalizationFactor != 0) {
                revert CodeSyncIssue();
            }
        }

        //  If price feed isn't available,we fallback to the reference price
        if (tokenInfo.latestPrice == 0) {
            if (referenceTokenPrice == 0 || referenceNormalizationFactor == 0) {
                revert ZeroValue();
            }

            tokenInfo.latestPrice = referenceTokenPrice;
            tokenInfo.normalizationFactorForNFT = referenceNormalizationFactor;
        }

        (uint256 roundPrice, uint256 value) = _processPurchaseNFT(
            token,
            tokenInfo.latestPrice,
            tokenInfo.normalizationFactorForNFT,
            round,
            indexes,
            nftAmounts,
            nftPrices
        );
        TransferInfo memory transferInfo = _calculateTransferAmounts(value, leaders, percentages);
        _transferFundsToken(token, transferInfo);
        _updateCommissions(leaders, percentages, value, round, token);

        emit PurchasedWithTokenForNFT({
            token: token,
            tokenPrice: tokenInfo.latestPrice,
            by: msg.sender,
            code: code,
            amountPurchased: value,
            round: round,
            leaders: leaders,
            percentages: percentages,
            roundPrice: roundPrice,
            nftAmounts: nftAmounts
        });
    }

    /// @inheritdoc IPreSale
    function purchaseWithClaim(
        IERC20 token,
        uint256 referenceTokenPrice,
        uint8 referenceNormalizationFactor,
        uint256 amount,
        uint256 minAmountToken,
        uint256[] calldata indexes,
        address recipient,
        uint32 round
    ) external payable canBuy nonReentrant {
        if (msg.sender != address(claimsContract)) {
            revert OnlyClaims();
        }

        _checkBlacklist(recipient);

        if (!allowedTokens[round][token].access) {
            revert TokenDisallowed();
        }

        uint256 roundPrice = _getRoundPriceForToken(recipient, indexes, round, token);
        (uint256 latestPrice, uint8 normalizationFactor) = _validatePrice(
            token,
            referenceTokenPrice,
            referenceNormalizationFactor
        );
        uint256 toReturn = _calculateAndUpdateTokenAmount(amount, latestPrice, normalizationFactor, roundPrice);

        if (toReturn < minAmountToken) {
            revert UnexpectedPriceDifference();
        }

        claims[recipient][round] += toReturn;
        uint256 platformAmount = (amount * PLATFORM_PERCENTAGE_PPM) / PPM;

        if (token == ETH) {
            payable(platformWallet).sendValue(platformAmount);
            payable(projectWallet).sendValue(amount - platformAmount);
        } else {
            token.safeTransferFrom(msg.sender, platformWallet, platformAmount);
            token.safeTransferFrom(msg.sender, projectWallet, amount - platformAmount);
        }

        emit PurchasedWithClaimAmount({
            by: recipient,
            amount: amount,
            token: token,
            round: round,
            tokenPrice: latestPrice,
            tokenPurchased: toReturn
        });
    }

    /// @notice The Chainlink inherited function, give us tokens live price
    function getLatestPrice(IERC20 token) public view returns (TokenInfo memory) {
        PriceFeedData memory data = tokenData[token];
        TokenInfo memory tokenInfo;

        if (address(data.priceFeed) == address(0)) {
            return tokenInfo;
        }
        (
            uint80 roundId,
            /*uint80 roundID*/ int price /*uint256 startedAt*/ /*uint80 answeredInRound*/,
            ,
            uint256 updatedAt,

        ) = /*uint256 timeStamp*/ data.priceFeed.latestRoundData();

        if (roundId == 0) {
            revert RoundIdNotUpdated();
        }

        if (updatedAt == 0 || block.timestamp - updatedAt > data.tolerance) {
            revert PriceNotUpdated();
        }

        return
            TokenInfo({
                latestPrice: uint256(price),
                normalizationFactorForToken: data.normalizationFactorForToken,
                normalizationFactorForNFT: data.normalizationFactorForNFT
            });
    }

    /// @dev Checks value, if zero then reverts
    function _checkValue(uint256 value) private pure {
        if (value == 0) {
            revert ZeroValue();
        }
    }

    /// @dev Validates blacklist address, round and deadline
    function _validatePurchase(uint32 round, uint256 deadline, IERC20 token) private view {
        if (block.timestamp > deadline) {
            revert DeadlineExpired();
        }

        _checkBlacklist(msg.sender);

        if (!allowedTokens[round][token].access) {
            revert TokenDisallowed();
        }

        _verifyInRound(round);
    }

    /// @dev The helper function which verifies signature, signed by signerWallet, reverts if Invalid
    function _verifyCode(string memory code, uint256 deadline, uint8 v, bytes32 r, bytes32 s) private view {
        bytes32 encodedMessageHash = keccak256(abi.encodePacked(msg.sender, code, deadline));
        _verifyMessage(encodedMessageHash, v, r, s);
    }

    /// @dev The helper function which verifies signature, signed by signerWallet, reverts if Invalid
    function _verifyCodeWithPrice(
        string memory code,
        uint256 deadline,
        uint256 referenceTokenPrice,
        IERC20 token,
        uint256 normalizationFactor,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) private view {
        bytes32 encodedMessageHash = keccak256(
            abi.encodePacked(msg.sender, code, referenceTokenPrice, deadline, token, normalizationFactor)
        );
        _verifyMessage(encodedMessageHash, v, r, s);
    }

    /// @dev Verifies the address that signed a hashed message (`hash`) with
    /// `signature`
    function _verifyMessage(bytes32 encodedMessageHash, uint8 v, bytes32 r, bytes32 s) private view {
        if (signerWallet != ECDSA.recover(MessageHashUtils.toEthSignedMessageHash(encodedMessageHash), v, r, s)) {
            revert InvalidSignature();
        }
    }

    /// @dev Process nft purchase by calculating nft prices and purchase amount
    function _processPurchaseNFT(
        IERC20 token,
        uint256 price,
        uint256 normalizationFactor,
        uint32 round,
        uint256[] calldata indexes,
        uint256[] calldata nftAmounts,
        uint256[] memory nftPrices
    ) private returns (uint256, uint256) {
        uint256 value;
        uint256 totalNFTPrices = 0;

        for (uint256 i = 0; i < nftPrices.length; ++i) {
            uint256 nfts = nftAmounts[i];
            uint256 prices = nftPrices[i];
            //  (10**0 * 10**6 +10**10) -10**10 = 6 decimals
            value += (nfts * prices * (10 ** (normalizationFactor))) / price;
            totalNFTPrices += nfts * prices;
        }

        uint256 roundPrice = _getRoundPriceForToken(msg.sender, indexes, round, token);
        _updateTokenPurchases((totalNFTPrices * NORMALIZARION_FACTOR) / roundPrice);
        claimNFT[msg.sender][round].push(ClaimNFT({ nftAmounts: nftAmounts, roundPrice: roundPrice }));

        return (roundPrice, value);
    }

    /// @dev Checks that address is blacklisted or not
    function _checkBlacklist(address which) private view {
        if (blacklistAddress[which]) {
            revert Blacklisted();
        }
    }

    /// @dev Checks max cap and updates total purchases
    function _updateTokenPurchases(uint256 newPurchase) private {
        if (newPurchase + totalPurchases > maxCap) {
            revert MaxCapReached();
        }

        totalPurchases += newPurchase;
    }

    /// @dev Validates round, deadline and signature
    function _validatePurchaseWithETH(
        uint256 amount,
        uint32 round,
        uint256 deadline,
        string memory code,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) private view {
        _checkValue(amount);
        _validatePurchase(round, deadline, ETH);
        _verifyCode(code, deadline, v, r, s);
    }

    /// @dev Validates round, deadline and signature
    function _validatePurchaseWithToken(
        IERC20 token,
        uint32 round,
        uint256 deadline,
        string memory code,
        uint256 referenceTokenPrice,
        uint256 normalizationFactor,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) private view {
        _validatePurchase(round, deadline, token);
        _verifyCodeWithPrice(code, deadline, referenceTokenPrice, token, normalizationFactor, v, r, s);
    }

    /// @dev Checks discounted round price if eligible else returns round price
    function _getRoundPriceForToken(
        address user,
        uint256[] memory indexes,
        uint32 round,
        IERC20 token
    ) private view returns (uint256) {
        uint256 customPrice = allowedTokens[round][token].customPrice;
        uint256 roundPrice = customPrice > 0 ? customPrice : rounds[round].price;
        uint256 lockedAmount;
        uint256 indexLength = indexes.length;

        if (indexLength == 0) {
            return roundPrice;
        }

        for (uint256 i; i < indexLength; ++i) {
            if (indexLength != i + 1) {
                if (indexes[i] >= indexes[i + 1]) {
                    revert ArrayNotSorted();
                }
            }

            (uint256 amount, ) = lockup.stakes(user, indexes[i]);
            lockedAmount += amount;

            if (lockedAmount >= lockup.minStakeAmount()) {
                if (round == 1) {
                    roundPrice -= ((roundPrice * FIRST_ROUND_PPM) / PPM);
                } else {
                    roundPrice -= ((roundPrice * OTHER_ROUND_PPM) / PPM);
                }

                break;
            }
        }

        return roundPrice;
    }

    /// @dev Calculates and update the token amount
    function _calculateAndUpdateTokenAmount(
        uint256 purchaseAmount,
        uint256 referenceTokenPrice,
        uint256 normalizationFactor,
        uint256 roundPrice
    ) private returns (uint256) {
        // toReturn= (10**11 * 10**10 +10**15) -10**18 = 18 decimals
        uint256 toReturn = (purchaseAmount * referenceTokenPrice * (10 ** normalizationFactor)) / roundPrice;
        _updateTokenPurchases(toReturn);

        return toReturn;
    }

    /// @dev Provides us live price of token from price feed or returns reference price and reverts if price is zero
    function _validatePrice(
        IERC20 token,
        uint256 referenceTokenPrice,
        uint8 referenceNormalizationFactor
    ) private view returns (uint256, uint8) {
        TokenInfo memory tokenInfo = getLatestPrice(token);
        if (tokenInfo.latestPrice != 0) {
            if (referenceTokenPrice != 0 || referenceNormalizationFactor != 0) {
                revert CodeSyncIssue();
            }
        }
        //  If price feed isn't available,we fallback to the reference price
        if (tokenInfo.latestPrice == 0) {
            if (referenceTokenPrice == 0 || referenceNormalizationFactor == 0) {
                revert ZeroValue();
            }

            tokenInfo.latestPrice = referenceTokenPrice;
            tokenInfo.normalizationFactorForToken = referenceNormalizationFactor;
        }

        return (tokenInfo.latestPrice, tokenInfo.normalizationFactorForToken);
    }

    /// @dev Distribute ETH to multiple recipients
    function _transferFundsETH(TransferInfo memory transferInfo) private {
        payable(projectWallet).sendValue(transferInfo.projectAmount);
        payable(platformWallet).sendValue(transferInfo.platformAmount);
        payable(burnWallet).sendValue(transferInfo.burnAmount);
        payable(address(claimsContract)).sendValue(transferInfo.equivalence);
    }

    /// @dev Distribute token to multiple recipients
    function _transferFundsToken(IERC20 token, TransferInfo memory transferInfo) private {
        token.safeTransferFrom(msg.sender, projectWallet, transferInfo.projectAmount);
        token.safeTransferFrom(msg.sender, platformWallet, transferInfo.platformAmount);
        token.safeTransferFrom(msg.sender, burnWallet, transferInfo.burnAmount);
        token.safeTransferFrom(msg.sender, address(claimsContract), transferInfo.equivalence);
    }

    /// @dev Checks zero address, if zero then reverts
    /// @param which The `which` address to check for zero address
    function _checkAddressZero(address which) private pure {
        if (which == address(0)) {
            revert ZeroAddress();
        }
    }

    /// @dev Checks buyEnabled, if not then reverts
    function _canBuy() private view {
        if (!buyEnabled) {
            revert BuyNotEnabled();
        }
    }

    /// @dev Calculates transfer amounts
    function _calculateTransferAmounts(
        uint256 amount,
        address[] memory leaders,
        uint256[] memory percentages
    ) private pure returns (TransferInfo memory transferInfo) {
        _checkValue(amount);
        transferInfo.burnAmount = (amount * BURN_PERCENTAGE_PPM) / PPM;
        transferInfo.platformAmount = (amount * PLATFORM_PERCENTAGE_PPM) / PPM;
        transferInfo.projectAmount = (amount * PROJECT_PERCENTAGE_PPM) / PPM;

        uint256 toLength = leaders.length;
        uint256 sumPercentage;

        if (toLength == 0) {
            revert InvalidData();
        }

        if (toLength > LEADERS_LENGTH) {
            revert InvalidArrayLength();
        }

        if (toLength != percentages.length) {
            revert ArrayLengthMismatch();
        }

        for (uint256 j; j < toLength; ++j) {
            sumPercentage += percentages[j];
        }

        if (sumPercentage == 0) {
            revert ZeroValue();
        }

        if (sumPercentage > CLAIMS_PERCENTAGE_PPM) {
            revert InvalidPercentage();
        }

        transferInfo.equivalence = (amount * sumPercentage) / PPM;

        if (sumPercentage < CLAIMS_PERCENTAGE_PPM) {
            transferInfo.platformAmount += (((amount * CLAIMS_PERCENTAGE_PPM) / PPM) - transferInfo.equivalence);
        }
    }

    /// @dev Updates the amounts of agents
    /// @param leaders The indexes of leaders
    /// @param percentages The indexes of leaders percentage
    /// @param amount The amount used to calculate leaders comission
    /// @param round The round in which user wants to purchase
    /// @param token The token address in which comissions will be set
    function _updateCommissions(
        address[] memory leaders,
        uint256[] memory percentages,
        uint256 amount,
        uint32 round,
        IERC20 token
    ) private {
        uint256 toLength = leaders.length;
        ClaimInfo[] memory claimInfo = new ClaimInfo[](toLength);

        for (uint256 i = 0; i < toLength; ++i) {
            claimInfo[i] = ClaimInfo({ token: token, amount: (amount * percentages[i]) / PPM });
        }

        claimsContract.addClaimInfo(leaders, round, claimInfo);
    }
}

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

interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

  function description() external view returns (string memory);

  function version() external view returns (uint256);

  function getRoundData(
    uint80 _roundId
  ) external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

  function latestRoundData()
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../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.
 *
 * 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 Ownable is Context {
    address private _owner;

    /**
     * @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.
     */
    constructor(address initialOwner) {
        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) {
        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 {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Contract module which provides access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * This extension of the {Ownable} contract includes a two-step mechanism to transfer
 * ownership, where the new owner must call {acceptOwnership} in order to replace the
 * old one. This can help prevent common mistakes, such as transfers of ownership to
 * incorrect accounts, or to contracts that are unable to interact with the
 * permission system.
 *
 * The initial owner is specified at deployment time in the constructor for `Ownable`. This
 * can later be changed with {transferOwnership} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2Step is Ownable {
    address private _pendingOwner;

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

    /**
     * @dev Returns the address of the pending owner.
     */
    function pendingOwner() public view virtual returns (address) {
        return _pendingOwner;
    }

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     *
     * Setting `newOwner` to the zero address is allowed; this can be used to cancel an initiated ownership transfer.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        _pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        delete _pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        if (pendingOwner() != sender) {
            revert OwnableUnauthorizedAccount(sender);
        }
        _transferOwnership(sender);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC1363.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../utils/introspection/IERC165.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Address.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert Errors.InsufficientBalance(address(this).balance, amount);
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert Errors.FailedCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {Errors.FailedCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert Errors.InsufficientBalance(address(this).balance, value);
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {Errors.FailedCall}) in case
     * of an unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {Errors.FailedCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {Errors.FailedCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            assembly ("memory-safe") {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert Errors.FailedCall();
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.20;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS
    }

    /**
     * @dev The signature derives the `address(0)`.
     */
    error ECDSAInvalidSignature();

    /**
     * @dev The signature has an invalid length.
     */
    error ECDSAInvalidSignatureLength(uint256 length);

    /**
     * @dev The signature has an S value that is in the upper half order.
     */
    error ECDSAInvalidSignatureS(bytes32 s);

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not
     * return address(0) without also returning an error description. Errors are documented using an enum (error type)
     * and a bytes32 providing additional information about the error.
     *
     * If no error is returned, then the address can be used for verification purposes.
     *
     * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     */
    function tryRecover(
        bytes32 hash,
        bytes memory signature
    ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly ("memory-safe") {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length));
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[ERC-2098 short signatures]
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) {
        unchecked {
            bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
            // We do not check for an overflow here since the shift operation results in 0 or 1.
            uint8 v = uint8((uint256(vs) >> 255) + 27);
            return tryRecover(hash, v, r, s);
        }
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS, s);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature, bytes32(0));
        }

        return (signer, RecoverError.NoError, bytes32(0));
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.
     */
    function _throwError(RecoverError error, bytes32 errorArg) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert ECDSAInvalidSignature();
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert ECDSAInvalidSignatureLength(uint256(errorArg));
        } else if (error == RecoverError.InvalidSignatureS) {
            revert ECDSAInvalidSignatureS(errorArg);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/MessageHashUtils.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing.
 *
 * The library provides methods for generating a hash of a message that conforms to the
 * https://eips.ethereum.org/EIPS/eip-191[ERC-191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712]
 * specifications.
 */
library MessageHashUtils {
    /**
     * @dev Returns the keccak256 digest of an ERC-191 signed data with version
     * `0x45` (`personal_sign` messages).
     *
     * The digest is calculated by prefixing a bytes32 `messageHash` with
     * `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the
     * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
     *
     * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with
     * keccak256, although any bytes32 value can be safely used because the final digest will
     * be re-hashed.
     *
     * See {ECDSA-recover}.
     */
    function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) {
        assembly ("memory-safe") {
            mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash
            mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix
            digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20)
        }
    }

    /**
     * @dev Returns the keccak256 digest of an ERC-191 signed data with version
     * `0x45` (`personal_sign` messages).
     *
     * The digest is calculated by prefixing an arbitrary `message` with
     * `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the
     * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
     *
     * See {ECDSA-recover}.
     */
    function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) {
        return
            keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message));
    }

    /**
     * @dev Returns the keccak256 digest of an ERC-191 signed data with version
     * `0x00` (data with intended validator).
     *
     * The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended
     * `validator` address. Then hashing the result.
     *
     * See {ECDSA-recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked(hex"19_00", validator, data));
    }

    /**
     * @dev Returns the keccak256 digest of an EIP-712 typed data (ERC-191 version `0x01`).
     *
     * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with
     * `\x19\x01` and hashing the result. It corresponds to the hash signed by the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712.
     *
     * See {ECDSA-recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) {
        assembly ("memory-safe") {
            let ptr := mload(0x40)
            mstore(ptr, hex"19_01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            digest := keccak256(ptr, 0x42)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Errors.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of common custom errors used in multiple contracts
 *
 * IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
 * It is recommended to avoid relying on the error API for critical functionality.
 *
 * _Available since v5.1._
 */
library Errors {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error InsufficientBalance(uint256 balance, uint256 needed);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedCall();

    /**
     * @dev The deployment failed.
     */
    error FailedDeployment();

    /**
     * @dev A necessary precompile is missing.
     */
    error MissingPrecompile(address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

import {Panic} from "../Panic.sol";
import {SafeCast} from "./SafeCast.sol";

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Floor, // Toward negative infinity
        Ceil, // Toward positive infinity
        Trunc, // Toward zero
        Expand // Away from zero
    }

    /**
     * @dev Returns the addition of two unsigned integers, with an success flag (no overflow).
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an success flag (no overflow).
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an success flag (no overflow).
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a success flag (no division by zero).
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero).
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant.
     *
     * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone.
     * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute
     * one branch when needed, making this function more expensive.
     */
    function ternary(bool condition, uint256 a, uint256 b) internal pure returns (uint256) {
        unchecked {
            // branchless ternary works because:
            // b ^ (a ^ b) == a
            // b ^ 0 == b
            return b ^ ((a ^ b) * SafeCast.toUint(condition));
        }
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return ternary(a > b, a, b);
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return ternary(a < b, a, b);
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            Panic.panic(Panic.DIVISION_BY_ZERO);
        }

        // The following calculation ensures accurate ceiling division without overflow.
        // Since a is non-zero, (a - 1) / b will not overflow.
        // The largest possible result occurs when (a - 1) / b is type(uint256).max,
        // but the largest value we can obtain is type(uint256).max - 1, which happens
        // when a = type(uint256).max and b = 1.
        unchecked {
            return SafeCast.toUint(a > 0) * ((a - 1) / b + 1);
        }
    }

    /**
     * @dev Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
     * denominator == 0.
     *
     * Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
     * Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2²⁵⁶ and mod 2²⁵⁶ - 1, then use
            // the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2²⁵⁶ + prod0.
            uint256 prod0 = x * y; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2²⁵⁶. Also prevents denominator == 0.
            if (denominator <= prod1) {
                Panic.panic(ternary(denominator == 0, Panic.DIVISION_BY_ZERO, Panic.UNDER_OVERFLOW));
            }

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator.
            // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.

            uint256 twos = denominator & (0 - denominator);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2²⁵⁶ / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2²⁵⁶. Now that denominator is an odd number, it has an inverse modulo 2²⁵⁶ such
            // that denominator * inv ≡ 1 mod 2²⁵⁶. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv ≡ 1 mod 2⁴.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
            // works in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2⁸
            inverse *= 2 - denominator * inverse; // inverse mod 2¹⁶
            inverse *= 2 - denominator * inverse; // inverse mod 2³²
            inverse *= 2 - denominator * inverse; // inverse mod 2⁶⁴
            inverse *= 2 - denominator * inverse; // inverse mod 2¹²⁸
            inverse *= 2 - denominator * inverse; // inverse mod 2²⁵⁶

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2²⁵⁶. Since the preconditions guarantee that the outcome is
            // less than 2²⁵⁶, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @dev Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        return mulDiv(x, y, denominator) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0);
    }

    /**
     * @dev Calculate the modular multiplicative inverse of a number in Z/nZ.
     *
     * If n is a prime, then Z/nZ is a field. In that case all elements are inversible, except 0.
     * If n is not a prime, then Z/nZ is not a field, and some elements might not be inversible.
     *
     * If the input value is not inversible, 0 is returned.
     *
     * NOTE: If you know for sure that n is (big) a prime, it may be cheaper to use Fermat's little theorem and get the
     * inverse using `Math.modExp(a, n - 2, n)`. See {invModPrime}.
     */
    function invMod(uint256 a, uint256 n) internal pure returns (uint256) {
        unchecked {
            if (n == 0) return 0;

            // The inverse modulo is calculated using the Extended Euclidean Algorithm (iterative version)
            // Used to compute integers x and y such that: ax + ny = gcd(a, n).
            // When the gcd is 1, then the inverse of a modulo n exists and it's x.
            // ax + ny = 1
            // ax = 1 + (-y)n
            // ax ≡ 1 (mod n) # x is the inverse of a modulo n

            // If the remainder is 0 the gcd is n right away.
            uint256 remainder = a % n;
            uint256 gcd = n;

            // Therefore the initial coefficients are:
            // ax + ny = gcd(a, n) = n
            // 0a + 1n = n
            int256 x = 0;
            int256 y = 1;

            while (remainder != 0) {
                uint256 quotient = gcd / remainder;

                (gcd, remainder) = (
                    // The old remainder is the next gcd to try.
                    remainder,
                    // Compute the next remainder.
                    // Can't overflow given that (a % gcd) * (gcd // (a % gcd)) <= gcd
                    // where gcd is at most n (capped to type(uint256).max)
                    gcd - remainder * quotient
                );

                (x, y) = (
                    // Increment the coefficient of a.
                    y,
                    // Decrement the coefficient of n.
                    // Can overflow, but the result is casted to uint256 so that the
                    // next value of y is "wrapped around" to a value between 0 and n - 1.
                    x - y * int256(quotient)
                );
            }

            if (gcd != 1) return 0; // No inverse exists.
            return ternary(x < 0, n - uint256(-x), uint256(x)); // Wrap the result if it's negative.
        }
    }

    /**
     * @dev Variant of {invMod}. More efficient, but only works if `p` is known to be a prime greater than `2`.
     *
     * From https://en.wikipedia.org/wiki/Fermat%27s_little_theorem[Fermat's little theorem], we know that if p is
     * prime, then `a**(p-1) ≡ 1 mod p`. As a consequence, we have `a * a**(p-2) ≡ 1 mod p`, which means that
     * `a**(p-2)` is the modular multiplicative inverse of a in Fp.
     *
     * NOTE: this function does NOT check that `p` is a prime greater than `2`.
     */
    function invModPrime(uint256 a, uint256 p) internal view returns (uint256) {
        unchecked {
            return Math.modExp(a, p - 2, p);
        }
    }

    /**
     * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m)
     *
     * Requirements:
     * - modulus can't be zero
     * - underlying staticcall to precompile must succeed
     *
     * IMPORTANT: The result is only valid if the underlying call succeeds. When using this function, make
     * sure the chain you're using it on supports the precompiled contract for modular exponentiation
     * at address 0x05 as specified in https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise,
     * the underlying function will succeed given the lack of a revert, but the result may be incorrectly
     * interpreted as 0.
     */
    function modExp(uint256 b, uint256 e, uint256 m) internal view returns (uint256) {
        (bool success, uint256 result) = tryModExp(b, e, m);
        if (!success) {
            Panic.panic(Panic.DIVISION_BY_ZERO);
        }
        return result;
    }

    /**
     * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m).
     * It includes a success flag indicating if the operation succeeded. Operation will be marked as failed if trying
     * to operate modulo 0 or if the underlying precompile reverted.
     *
     * IMPORTANT: The result is only valid if the success flag is true. When using this function, make sure the chain
     * you're using it on supports the precompiled contract for modular exponentiation at address 0x05 as specified in
     * https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, the underlying function will succeed given the lack
     * of a revert, but the result may be incorrectly interpreted as 0.
     */
    function tryModExp(uint256 b, uint256 e, uint256 m) internal view returns (bool success, uint256 result) {
        if (m == 0) return (false, 0);
        assembly ("memory-safe") {
            let ptr := mload(0x40)
            // | Offset    | Content    | Content (Hex)                                                      |
            // |-----------|------------|--------------------------------------------------------------------|
            // | 0x00:0x1f | size of b  | 0x0000000000000000000000000000000000000000000000000000000000000020 |
            // | 0x20:0x3f | size of e  | 0x0000000000000000000000000000000000000000000000000000000000000020 |
            // | 0x40:0x5f | size of m  | 0x0000000000000000000000000000000000000000000000000000000000000020 |
            // | 0x60:0x7f | value of b | 0x<.............................................................b> |
            // | 0x80:0x9f | value of e | 0x<.............................................................e> |
            // | 0xa0:0xbf | value of m | 0x<.............................................................m> |
            mstore(ptr, 0x20)
            mstore(add(ptr, 0x20), 0x20)
            mstore(add(ptr, 0x40), 0x20)
            mstore(add(ptr, 0x60), b)
            mstore(add(ptr, 0x80), e)
            mstore(add(ptr, 0xa0), m)

            // Given the result < m, it's guaranteed to fit in 32 bytes,
            // so we can use the memory scratch space located at offset 0.
            success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20)
            result := mload(0x00)
        }
    }

    /**
     * @dev Variant of {modExp} that supports inputs of arbitrary length.
     */
    function modExp(bytes memory b, bytes memory e, bytes memory m) internal view returns (bytes memory) {
        (bool success, bytes memory result) = tryModExp(b, e, m);
        if (!success) {
            Panic.panic(Panic.DIVISION_BY_ZERO);
        }
        return result;
    }

    /**
     * @dev Variant of {tryModExp} that supports inputs of arbitrary length.
     */
    function tryModExp(
        bytes memory b,
        bytes memory e,
        bytes memory m
    ) internal view returns (bool success, bytes memory result) {
        if (_zeroBytes(m)) return (false, new bytes(0));

        uint256 mLen = m.length;

        // Encode call args in result and move the free memory pointer
        result = abi.encodePacked(b.length, e.length, mLen, b, e, m);

        assembly ("memory-safe") {
            let dataPtr := add(result, 0x20)
            // Write result on top of args to avoid allocating extra memory.
            success := staticcall(gas(), 0x05, dataPtr, mload(result), dataPtr, mLen)
            // Overwrite the length.
            // result.length > returndatasize() is guaranteed because returndatasize() == m.length
            mstore(result, mLen)
            // Set the memory pointer after the returned data.
            mstore(0x40, add(dataPtr, mLen))
        }
    }

    /**
     * @dev Returns whether the provided byte array is zero.
     */
    function _zeroBytes(bytes memory byteArray) private pure returns (bool) {
        for (uint256 i = 0; i < byteArray.length; ++i) {
            if (byteArray[i] != 0) {
                return false;
            }
        }
        return true;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
     * towards zero.
     *
     * This method is based on Newton's method for computing square roots; the algorithm is restricted to only
     * using integer operations.
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        unchecked {
            // Take care of easy edge cases when a == 0 or a == 1
            if (a <= 1) {
                return a;
            }

            // In this function, we use Newton's method to get a root of `f(x) := x² - a`. It involves building a
            // sequence x_n that converges toward sqrt(a). For each iteration x_n, we also define the error between
            // the current value as `ε_n = | x_n - sqrt(a) |`.
            //
            // For our first estimation, we consider `e` the smallest power of 2 which is bigger than the square root
            // of the target. (i.e. `2**(e-1) ≤ sqrt(a) < 2**e`). We know that `e ≤ 128` because `(2¹²⁸)² = 2²⁵⁶` is
            // bigger than any uint256.
            //
            // By noticing that
            // `2**(e-1) ≤ sqrt(a) < 2**e → (2**(e-1))² ≤ a < (2**e)² → 2**(2*e-2) ≤ a < 2**(2*e)`
            // we can deduce that `e - 1` is `log2(a) / 2`. We can thus compute `x_n = 2**(e-1)` using a method similar
            // to the msb function.
            uint256 aa = a;
            uint256 xn = 1;

            if (aa >= (1 << 128)) {
                aa >>= 128;
                xn <<= 64;
            }
            if (aa >= (1 << 64)) {
                aa >>= 64;
                xn <<= 32;
            }
            if (aa >= (1 << 32)) {
                aa >>= 32;
                xn <<= 16;
            }
            if (aa >= (1 << 16)) {
                aa >>= 16;
                xn <<= 8;
            }
            if (aa >= (1 << 8)) {
                aa >>= 8;
                xn <<= 4;
            }
            if (aa >= (1 << 4)) {
                aa >>= 4;
                xn <<= 2;
            }
            if (aa >= (1 << 2)) {
                xn <<= 1;
            }

            // We now have x_n such that `x_n = 2**(e-1) ≤ sqrt(a) < 2**e = 2 * x_n`. This implies ε_n ≤ 2**(e-1).
            //
            // We can refine our estimation by noticing that the middle of that interval minimizes the error.
            // If we move x_n to equal 2**(e-1) + 2**(e-2), then we reduce the error to ε_n ≤ 2**(e-2).
            // This is going to be our x_0 (and ε_0)
            xn = (3 * xn) >> 1; // ε_0 := | x_0 - sqrt(a) | ≤ 2**(e-2)

            // From here, Newton's method give us:
            // x_{n+1} = (x_n + a / x_n) / 2
            //
            // One should note that:
            // x_{n+1}² - a = ((x_n + a / x_n) / 2)² - a
            //              = ((x_n² + a) / (2 * x_n))² - a
            //              = (x_n⁴ + 2 * a * x_n² + a²) / (4 * x_n²) - a
            //              = (x_n⁴ + 2 * a * x_n² + a² - 4 * a * x_n²) / (4 * x_n²)
            //              = (x_n⁴ - 2 * a * x_n² + a²) / (4 * x_n²)
            //              = (x_n² - a)² / (2 * x_n)²
            //              = ((x_n² - a) / (2 * x_n))²
            //              ≥ 0
            // Which proves that for all n ≥ 1, sqrt(a) ≤ x_n
            //
            // This gives us the proof of quadratic convergence of the sequence:
            // ε_{n+1} = | x_{n+1} - sqrt(a) |
            //         = | (x_n + a / x_n) / 2 - sqrt(a) |
            //         = | (x_n² + a - 2*x_n*sqrt(a)) / (2 * x_n) |
            //         = | (x_n - sqrt(a))² / (2 * x_n) |
            //         = | ε_n² / (2 * x_n) |
            //         = ε_n² / | (2 * x_n) |
            //
            // For the first iteration, we have a special case where x_0 is known:
            // ε_1 = ε_0² / | (2 * x_0) |
            //     ≤ (2**(e-2))² / (2 * (2**(e-1) + 2**(e-2)))
            //     ≤ 2**(2*e-4) / (3 * 2**(e-1))
            //     ≤ 2**(e-3) / 3
            //     ≤ 2**(e-3-log2(3))
            //     ≤ 2**(e-4.5)
            //
            // For the following iterations, we use the fact that, 2**(e-1) ≤ sqrt(a) ≤ x_n:
            // ε_{n+1} = ε_n² / | (2 * x_n) |
            //         ≤ (2**(e-k))² / (2 * 2**(e-1))
            //         ≤ 2**(2*e-2*k) / 2**e
            //         ≤ 2**(e-2*k)
            xn = (xn + a / xn) >> 1; // ε_1 := | x_1 - sqrt(a) | ≤ 2**(e-4.5)  -- special case, see above
            xn = (xn + a / xn) >> 1; // ε_2 := | x_2 - sqrt(a) | ≤ 2**(e-9)    -- general case with k = 4.5
            xn = (xn + a / xn) >> 1; // ε_3 := | x_3 - sqrt(a) | ≤ 2**(e-18)   -- general case with k = 9
            xn = (xn + a / xn) >> 1; // ε_4 := | x_4 - sqrt(a) | ≤ 2**(e-36)   -- general case with k = 18
            xn = (xn + a / xn) >> 1; // ε_5 := | x_5 - sqrt(a) | ≤ 2**(e-72)   -- general case with k = 36
            xn = (xn + a / xn) >> 1; // ε_6 := | x_6 - sqrt(a) | ≤ 2**(e-144)  -- general case with k = 72

            // Because e ≤ 128 (as discussed during the first estimation phase), we know have reached a precision
            // ε_6 ≤ 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either
            // sqrt(a) or sqrt(a) + 1.
            return xn - SafeCast.toUint(xn > a / xn);
        }
    }

    /**
     * @dev Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a);
        }
    }

    /**
     * @dev Return the log in base 2 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        uint256 exp;
        unchecked {
            exp = 128 * SafeCast.toUint(value > (1 << 128) - 1);
            value >>= exp;
            result += exp;

            exp = 64 * SafeCast.toUint(value > (1 << 64) - 1);
            value >>= exp;
            result += exp;

            exp = 32 * SafeCast.toUint(value > (1 << 32) - 1);
            value >>= exp;
            result += exp;

            exp = 16 * SafeCast.toUint(value > (1 << 16) - 1);
            value >>= exp;
            result += exp;

            exp = 8 * SafeCast.toUint(value > (1 << 8) - 1);
            value >>= exp;
            result += exp;

            exp = 4 * SafeCast.toUint(value > (1 << 4) - 1);
            value >>= exp;
            result += exp;

            exp = 2 * SafeCast.toUint(value > (1 << 2) - 1);
            value >>= exp;
            result += exp;

            result += SafeCast.toUint(value > 1);
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value);
        }
    }

    /**
     * @dev Return the log in base 10 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value);
        }
    }

    /**
     * @dev Return the log in base 256 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        uint256 isGt;
        unchecked {
            isGt = SafeCast.toUint(value > (1 << 128) - 1);
            value >>= isGt * 128;
            result += isGt * 16;

            isGt = SafeCast.toUint(value > (1 << 64) - 1);
            value >>= isGt * 64;
            result += isGt * 8;

            isGt = SafeCast.toUint(value > (1 << 32) - 1);
            value >>= isGt * 32;
            result += isGt * 4;

            isGt = SafeCast.toUint(value > (1 << 16) - 1);
            value >>= isGt * 16;
            result += isGt * 2;

            result += SafeCast.toUint(value > (1 << 8) - 1);
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value);
        }
    }

    /**
     * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
     */
    function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
        return uint8(rounding) % 2 == 1;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.

pragma solidity ^0.8.20;

/**
 * @dev Wrappers over Solidity's uintXX/intXX/bool casting operators with added overflow
 * checks.
 *
 * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
 * easily result in undesired exploitation or bugs, since developers usually
 * assume that overflows raise errors. `SafeCast` restores this intuition by
 * reverting the transaction when such an operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeCast {
    /**
     * @dev Value doesn't fit in an uint of `bits` size.
     */
    error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);

    /**
     * @dev An int value doesn't fit in an uint of `bits` size.
     */
    error SafeCastOverflowedIntToUint(int256 value);

    /**
     * @dev Value doesn't fit in an int of `bits` size.
     */
    error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);

    /**
     * @dev An uint value doesn't fit in an int of `bits` size.
     */
    error SafeCastOverflowedUintToInt(uint256 value);

    /**
     * @dev Returns the downcasted uint248 from uint256, reverting on
     * overflow (when the input is greater than largest uint248).
     *
     * Counterpart to Solidity's `uint248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     */
    function toUint248(uint256 value) internal pure returns (uint248) {
        if (value > type(uint248).max) {
            revert SafeCastOverflowedUintDowncast(248, value);
        }
        return uint248(value);
    }

    /**
     * @dev Returns the downcasted uint240 from uint256, reverting on
     * overflow (when the input is greater than largest uint240).
     *
     * Counterpart to Solidity's `uint240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     */
    function toUint240(uint256 value) internal pure returns (uint240) {
        if (value > type(uint240).max) {
            revert SafeCastOverflowedUintDowncast(240, value);
        }
        return uint240(value);
    }

    /**
     * @dev Returns the downcasted uint232 from uint256, reverting on
     * overflow (when the input is greater than largest uint232).
     *
     * Counterpart to Solidity's `uint232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     */
    function toUint232(uint256 value) internal pure returns (uint232) {
        if (value > type(uint232).max) {
            revert SafeCastOverflowedUintDowncast(232, value);
        }
        return uint232(value);
    }

    /**
     * @dev Returns the downcasted uint224 from uint256, reverting on
     * overflow (when the input is greater than largest uint224).
     *
     * Counterpart to Solidity's `uint224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toUint224(uint256 value) internal pure returns (uint224) {
        if (value > type(uint224).max) {
            revert SafeCastOverflowedUintDowncast(224, value);
        }
        return uint224(value);
    }

    /**
     * @dev Returns the downcasted uint216 from uint256, reverting on
     * overflow (when the input is greater than largest uint216).
     *
     * Counterpart to Solidity's `uint216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     */
    function toUint216(uint256 value) internal pure returns (uint216) {
        if (value > type(uint216).max) {
            revert SafeCastOverflowedUintDowncast(216, value);
        }
        return uint216(value);
    }

    /**
     * @dev Returns the downcasted uint208 from uint256, reverting on
     * overflow (when the input is greater than largest uint208).
     *
     * Counterpart to Solidity's `uint208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     */
    function toUint208(uint256 value) internal pure returns (uint208) {
        if (value > type(uint208).max) {
            revert SafeCastOverflowedUintDowncast(208, value);
        }
        return uint208(value);
    }

    /**
     * @dev Returns the downcasted uint200 from uint256, reverting on
     * overflow (when the input is greater than largest uint200).
     *
     * Counterpart to Solidity's `uint200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     */
    function toUint200(uint256 value) internal pure returns (uint200) {
        if (value > type(uint200).max) {
            revert SafeCastOverflowedUintDowncast(200, value);
        }
        return uint200(value);
    }

    /**
     * @dev Returns the downcasted uint192 from uint256, reverting on
     * overflow (when the input is greater than largest uint192).
     *
     * Counterpart to Solidity's `uint192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     */
    function toUint192(uint256 value) internal pure returns (uint192) {
        if (value > type(uint192).max) {
            revert SafeCastOverflowedUintDowncast(192, value);
        }
        return uint192(value);
    }

    /**
     * @dev Returns the downcasted uint184 from uint256, reverting on
     * overflow (when the input is greater than largest uint184).
     *
     * Counterpart to Solidity's `uint184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     */
    function toUint184(uint256 value) internal pure returns (uint184) {
        if (value > type(uint184).max) {
            revert SafeCastOverflowedUintDowncast(184, value);
        }
        return uint184(value);
    }

    /**
     * @dev Returns the downcasted uint176 from uint256, reverting on
     * overflow (when the input is greater than largest uint176).
     *
     * Counterpart to Solidity's `uint176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     */
    function toUint176(uint256 value) internal pure returns (uint176) {
        if (value > type(uint176).max) {
            revert SafeCastOverflowedUintDowncast(176, value);
        }
        return uint176(value);
    }

    /**
     * @dev Returns the downcasted uint168 from uint256, reverting on
     * overflow (when the input is greater than largest uint168).
     *
     * Counterpart to Solidity's `uint168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     */
    function toUint168(uint256 value) internal pure returns (uint168) {
        if (value > type(uint168).max) {
            revert SafeCastOverflowedUintDowncast(168, value);
        }
        return uint168(value);
    }

    /**
     * @dev Returns the downcasted uint160 from uint256, reverting on
     * overflow (when the input is greater than largest uint160).
     *
     * Counterpart to Solidity's `uint160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     */
    function toUint160(uint256 value) internal pure returns (uint160) {
        if (value > type(uint160).max) {
            revert SafeCastOverflowedUintDowncast(160, value);
        }
        return uint160(value);
    }

    /**
     * @dev Returns the downcasted uint152 from uint256, reverting on
     * overflow (when the input is greater than largest uint152).
     *
     * Counterpart to Solidity's `uint152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     */
    function toUint152(uint256 value) internal pure returns (uint152) {
        if (value > type(uint152).max) {
            revert SafeCastOverflowedUintDowncast(152, value);
        }
        return uint152(value);
    }

    /**
     * @dev Returns the downcasted uint144 from uint256, reverting on
     * overflow (when the input is greater than largest uint144).
     *
     * Counterpart to Solidity's `uint144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     */
    function toUint144(uint256 value) internal pure returns (uint144) {
        if (value > type(uint144).max) {
            revert SafeCastOverflowedUintDowncast(144, value);
        }
        return uint144(value);
    }

    /**
     * @dev Returns the downcasted uint136 from uint256, reverting on
     * overflow (when the input is greater than largest uint136).
     *
     * Counterpart to Solidity's `uint136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     */
    function toUint136(uint256 value) internal pure returns (uint136) {
        if (value > type(uint136).max) {
            revert SafeCastOverflowedUintDowncast(136, value);
        }
        return uint136(value);
    }

    /**
     * @dev Returns the downcasted uint128 from uint256, reverting on
     * overflow (when the input is greater than largest uint128).
     *
     * Counterpart to Solidity's `uint128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toUint128(uint256 value) internal pure returns (uint128) {
        if (value > type(uint128).max) {
            revert SafeCastOverflowedUintDowncast(128, value);
        }
        return uint128(value);
    }

    /**
     * @dev Returns the downcasted uint120 from uint256, reverting on
     * overflow (when the input is greater than largest uint120).
     *
     * Counterpart to Solidity's `uint120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     */
    function toUint120(uint256 value) internal pure returns (uint120) {
        if (value > type(uint120).max) {
            revert SafeCastOverflowedUintDowncast(120, value);
        }
        return uint120(value);
    }

    /**
     * @dev Returns the downcasted uint112 from uint256, reverting on
     * overflow (when the input is greater than largest uint112).
     *
     * Counterpart to Solidity's `uint112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     */
    function toUint112(uint256 value) internal pure returns (uint112) {
        if (value > type(uint112).max) {
            revert SafeCastOverflowedUintDowncast(112, value);
        }
        return uint112(value);
    }

    /**
     * @dev Returns the downcasted uint104 from uint256, reverting on
     * overflow (when the input is greater than largest uint104).
     *
     * Counterpart to Solidity's `uint104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     */
    function toUint104(uint256 value) internal pure returns (uint104) {
        if (value > type(uint104).max) {
            revert SafeCastOverflowedUintDowncast(104, value);
        }
        return uint104(value);
    }

    /**
     * @dev Returns the downcasted uint96 from uint256, reverting on
     * overflow (when the input is greater than largest uint96).
     *
     * Counterpart to Solidity's `uint96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toUint96(uint256 value) internal pure returns (uint96) {
        if (value > type(uint96).max) {
            revert SafeCastOverflowedUintDowncast(96, value);
        }
        return uint96(value);
    }

    /**
     * @dev Returns the downcasted uint88 from uint256, reverting on
     * overflow (when the input is greater than largest uint88).
     *
     * Counterpart to Solidity's `uint88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     */
    function toUint88(uint256 value) internal pure returns (uint88) {
        if (value > type(uint88).max) {
            revert SafeCastOverflowedUintDowncast(88, value);
        }
        return uint88(value);
    }

    /**
     * @dev Returns the downcasted uint80 from uint256, reverting on
     * overflow (when the input is greater than largest uint80).
     *
     * Counterpart to Solidity's `uint80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     */
    function toUint80(uint256 value) internal pure returns (uint80) {
        if (value > type(uint80).max) {
            revert SafeCastOverflowedUintDowncast(80, value);
        }
        return uint80(value);
    }

    /**
     * @dev Returns the downcasted uint72 from uint256, reverting on
     * overflow (when the input is greater than largest uint72).
     *
     * Counterpart to Solidity's `uint72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     */
    function toUint72(uint256 value) internal pure returns (uint72) {
        if (value > type(uint72).max) {
            revert SafeCastOverflowedUintDowncast(72, value);
        }
        return uint72(value);
    }

    /**
     * @dev Returns the downcasted uint64 from uint256, reverting on
     * overflow (when the input is greater than largest uint64).
     *
     * Counterpart to Solidity's `uint64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toUint64(uint256 value) internal pure returns (uint64) {
        if (value > type(uint64).max) {
            revert SafeCastOverflowedUintDowncast(64, value);
        }
        return uint64(value);
    }

    /**
     * @dev Returns the downcasted uint56 from uint256, reverting on
     * overflow (when the input is greater than largest uint56).
     *
     * Counterpart to Solidity's `uint56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     */
    function toUint56(uint256 value) internal pure returns (uint56) {
        if (value > type(uint56).max) {
            revert SafeCastOverflowedUintDowncast(56, value);
        }
        return uint56(value);
    }

    /**
     * @dev Returns the downcasted uint48 from uint256, reverting on
     * overflow (when the input is greater than largest uint48).
     *
     * Counterpart to Solidity's `uint48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     */
    function toUint48(uint256 value) internal pure returns (uint48) {
        if (value > type(uint48).max) {
            revert SafeCastOverflowedUintDowncast(48, value);
        }
        return uint48(value);
    }

    /**
     * @dev Returns the downcasted uint40 from uint256, reverting on
     * overflow (when the input is greater than largest uint40).
     *
     * Counterpart to Solidity's `uint40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     */
    function toUint40(uint256 value) internal pure returns (uint40) {
        if (value > type(uint40).max) {
            revert SafeCastOverflowedUintDowncast(40, value);
        }
        return uint40(value);
    }

    /**
     * @dev Returns the downcasted uint32 from uint256, reverting on
     * overflow (when the input is greater than largest uint32).
     *
     * Counterpart to Solidity's `uint32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toUint32(uint256 value) internal pure returns (uint32) {
        if (value > type(uint32).max) {
            revert SafeCastOverflowedUintDowncast(32, value);
        }
        return uint32(value);
    }

    /**
     * @dev Returns the downcasted uint24 from uint256, reverting on
     * overflow (when the input is greater than largest uint24).
     *
     * Counterpart to Solidity's `uint24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     */
    function toUint24(uint256 value) internal pure returns (uint24) {
        if (value > type(uint24).max) {
            revert SafeCastOverflowedUintDowncast(24, value);
        }
        return uint24(value);
    }

    /**
     * @dev Returns the downcasted uint16 from uint256, reverting on
     * overflow (when the input is greater than largest uint16).
     *
     * Counterpart to Solidity's `uint16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toUint16(uint256 value) internal pure returns (uint16) {
        if (value > type(uint16).max) {
            revert SafeCastOverflowedUintDowncast(16, value);
        }
        return uint16(value);
    }

    /**
     * @dev Returns the downcasted uint8 from uint256, reverting on
     * overflow (when the input is greater than largest uint8).
     *
     * Counterpart to Solidity's `uint8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     */
    function toUint8(uint256 value) internal pure returns (uint8) {
        if (value > type(uint8).max) {
            revert SafeCastOverflowedUintDowncast(8, value);
        }
        return uint8(value);
    }

    /**
     * @dev Converts a signed int256 into an unsigned uint256.
     *
     * Requirements:
     *
     * - input must be greater than or equal to 0.
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        if (value < 0) {
            revert SafeCastOverflowedIntToUint(value);
        }
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int248 from int256, reverting on
     * overflow (when the input is less than smallest int248 or
     * greater than largest int248).
     *
     * Counterpart to Solidity's `int248` operator.
     *
     * Requirements:
     *
     * - input must fit into 248 bits
     */
    function toInt248(int256 value) internal pure returns (int248 downcasted) {
        downcasted = int248(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(248, value);
        }
    }

    /**
     * @dev Returns the downcasted int240 from int256, reverting on
     * overflow (when the input is less than smallest int240 or
     * greater than largest int240).
     *
     * Counterpart to Solidity's `int240` operator.
     *
     * Requirements:
     *
     * - input must fit into 240 bits
     */
    function toInt240(int256 value) internal pure returns (int240 downcasted) {
        downcasted = int240(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(240, value);
        }
    }

    /**
     * @dev Returns the downcasted int232 from int256, reverting on
     * overflow (when the input is less than smallest int232 or
     * greater than largest int232).
     *
     * Counterpart to Solidity's `int232` operator.
     *
     * Requirements:
     *
     * - input must fit into 232 bits
     */
    function toInt232(int256 value) internal pure returns (int232 downcasted) {
        downcasted = int232(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(232, value);
        }
    }

    /**
     * @dev Returns the downcasted int224 from int256, reverting on
     * overflow (when the input is less than smallest int224 or
     * greater than largest int224).
     *
     * Counterpart to Solidity's `int224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toInt224(int256 value) internal pure returns (int224 downcasted) {
        downcasted = int224(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(224, value);
        }
    }

    /**
     * @dev Returns the downcasted int216 from int256, reverting on
     * overflow (when the input is less than smallest int216 or
     * greater than largest int216).
     *
     * Counterpart to Solidity's `int216` operator.
     *
     * Requirements:
     *
     * - input must fit into 216 bits
     */
    function toInt216(int256 value) internal pure returns (int216 downcasted) {
        downcasted = int216(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(216, value);
        }
    }

    /**
     * @dev Returns the downcasted int208 from int256, reverting on
     * overflow (when the input is less than smallest int208 or
     * greater than largest int208).
     *
     * Counterpart to Solidity's `int208` operator.
     *
     * Requirements:
     *
     * - input must fit into 208 bits
     */
    function toInt208(int256 value) internal pure returns (int208 downcasted) {
        downcasted = int208(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(208, value);
        }
    }

    /**
     * @dev Returns the downcasted int200 from int256, reverting on
     * overflow (when the input is less than smallest int200 or
     * greater than largest int200).
     *
     * Counterpart to Solidity's `int200` operator.
     *
     * Requirements:
     *
     * - input must fit into 200 bits
     */
    function toInt200(int256 value) internal pure returns (int200 downcasted) {
        downcasted = int200(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(200, value);
        }
    }

    /**
     * @dev Returns the downcasted int192 from int256, reverting on
     * overflow (when the input is less than smallest int192 or
     * greater than largest int192).
     *
     * Counterpart to Solidity's `int192` operator.
     *
     * Requirements:
     *
     * - input must fit into 192 bits
     */
    function toInt192(int256 value) internal pure returns (int192 downcasted) {
        downcasted = int192(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(192, value);
        }
    }

    /**
     * @dev Returns the downcasted int184 from int256, reverting on
     * overflow (when the input is less than smallest int184 or
     * greater than largest int184).
     *
     * Counterpart to Solidity's `int184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     */
    function toInt184(int256 value) internal pure returns (int184 downcasted) {
        downcasted = int184(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(184, value);
        }
    }

    /**
     * @dev Returns the downcasted int176 from int256, reverting on
     * overflow (when the input is less than smallest int176 or
     * greater than largest int176).
     *
     * Counterpart to Solidity's `int176` operator.
     *
     * Requirements:
     *
     * - input must fit into 176 bits
     */
    function toInt176(int256 value) internal pure returns (int176 downcasted) {
        downcasted = int176(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(176, value);
        }
    }

    /**
     * @dev Returns the downcasted int168 from int256, reverting on
     * overflow (when the input is less than smallest int168 or
     * greater than largest int168).
     *
     * Counterpart to Solidity's `int168` operator.
     *
     * Requirements:
     *
     * - input must fit into 168 bits
     */
    function toInt168(int256 value) internal pure returns (int168 downcasted) {
        downcasted = int168(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(168, value);
        }
    }

    /**
     * @dev Returns the downcasted int160 from int256, reverting on
     * overflow (when the input is less than smallest int160 or
     * greater than largest int160).
     *
     * Counterpart to Solidity's `int160` operator.
     *
     * Requirements:
     *
     * - input must fit into 160 bits
     */
    function toInt160(int256 value) internal pure returns (int160 downcasted) {
        downcasted = int160(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(160, value);
        }
    }

    /**
     * @dev Returns the downcasted int152 from int256, reverting on
     * overflow (when the input is less than smallest int152 or
     * greater than largest int152).
     *
     * Counterpart to Solidity's `int152` operator.
     *
     * Requirements:
     *
     * - input must fit into 152 bits
     */
    function toInt152(int256 value) internal pure returns (int152 downcasted) {
        downcasted = int152(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(152, value);
        }
    }

    /**
     * @dev Returns the downcasted int144 from int256, reverting on
     * overflow (when the input is less than smallest int144 or
     * greater than largest int144).
     *
     * Counterpart to Solidity's `int144` operator.
     *
     * Requirements:
     *
     * - input must fit into 144 bits
     */
    function toInt144(int256 value) internal pure returns (int144 downcasted) {
        downcasted = int144(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(144, value);
        }
    }

    /**
     * @dev Returns the downcasted int136 from int256, reverting on
     * overflow (when the input is less than smallest int136 or
     * greater than largest int136).
     *
     * Counterpart to Solidity's `int136` operator.
     *
     * Requirements:
     *
     * - input must fit into 136 bits
     */
    function toInt136(int256 value) internal pure returns (int136 downcasted) {
        downcasted = int136(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(136, value);
        }
    }

    /**
     * @dev Returns the downcasted int128 from int256, reverting on
     * overflow (when the input is less than smallest int128 or
     * greater than largest int128).
     *
     * Counterpart to Solidity's `int128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toInt128(int256 value) internal pure returns (int128 downcasted) {
        downcasted = int128(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(128, value);
        }
    }

    /**
     * @dev Returns the downcasted int120 from int256, reverting on
     * overflow (when the input is less than smallest int120 or
     * greater than largest int120).
     *
     * Counterpart to Solidity's `int120` operator.
     *
     * Requirements:
     *
     * - input must fit into 120 bits
     */
    function toInt120(int256 value) internal pure returns (int120 downcasted) {
        downcasted = int120(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(120, value);
        }
    }

    /**
     * @dev Returns the downcasted int112 from int256, reverting on
     * overflow (when the input is less than smallest int112 or
     * greater than largest int112).
     *
     * Counterpart to Solidity's `int112` operator.
     *
     * Requirements:
     *
     * - input must fit into 112 bits
     */
    function toInt112(int256 value) internal pure returns (int112 downcasted) {
        downcasted = int112(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(112, value);
        }
    }

    /**
     * @dev Returns the downcasted int104 from int256, reverting on
     * overflow (when the input is less than smallest int104 or
     * greater than largest int104).
     *
     * Counterpart to Solidity's `int104` operator.
     *
     * Requirements:
     *
     * - input must fit into 104 bits
     */
    function toInt104(int256 value) internal pure returns (int104 downcasted) {
        downcasted = int104(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(104, value);
        }
    }

    /**
     * @dev Returns the downcasted int96 from int256, reverting on
     * overflow (when the input is less than smallest int96 or
     * greater than largest int96).
     *
     * Counterpart to Solidity's `int96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toInt96(int256 value) internal pure returns (int96 downcasted) {
        downcasted = int96(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(96, value);
        }
    }

    /**
     * @dev Returns the downcasted int88 from int256, reverting on
     * overflow (when the input is less than smallest int88 or
     * greater than largest int88).
     *
     * Counterpart to Solidity's `int88` operator.
     *
     * Requirements:
     *
     * - input must fit into 88 bits
     */
    function toInt88(int256 value) internal pure returns (int88 downcasted) {
        downcasted = int88(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(88, value);
        }
    }

    /**
     * @dev Returns the downcasted int80 from int256, reverting on
     * overflow (when the input is less than smallest int80 or
     * greater than largest int80).
     *
     * Counterpart to Solidity's `int80` operator.
     *
     * Requirements:
     *
     * - input must fit into 80 bits
     */
    function toInt80(int256 value) internal pure returns (int80 downcasted) {
        downcasted = int80(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(80, value);
        }
    }

    /**
     * @dev Returns the downcasted int72 from int256, reverting on
     * overflow (when the input is less than smallest int72 or
     * greater than largest int72).
     *
     * Counterpart to Solidity's `int72` operator.
     *
     * Requirements:
     *
     * - input must fit into 72 bits
     */
    function toInt72(int256 value) internal pure returns (int72 downcasted) {
        downcasted = int72(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(72, value);
        }
    }

    /**
     * @dev Returns the downcasted int64 from int256, reverting on
     * overflow (when the input is less than smallest int64 or
     * greater than largest int64).
     *
     * Counterpart to Solidity's `int64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toInt64(int256 value) internal pure returns (int64 downcasted) {
        downcasted = int64(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(64, value);
        }
    }

    /**
     * @dev Returns the downcasted int56 from int256, reverting on
     * overflow (when the input is less than smallest int56 or
     * greater than largest int56).
     *
     * Counterpart to Solidity's `int56` operator.
     *
     * Requirements:
     *
     * - input must fit into 56 bits
     */
    function toInt56(int256 value) internal pure returns (int56 downcasted) {
        downcasted = int56(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(56, value);
        }
    }

    /**
     * @dev Returns the downcasted int48 from int256, reverting on
     * overflow (when the input is less than smallest int48 or
     * greater than largest int48).
     *
     * Counterpart to Solidity's `int48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     */
    function toInt48(int256 value) internal pure returns (int48 downcasted) {
        downcasted = int48(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(48, value);
        }
    }

    /**
     * @dev Returns the downcasted int40 from int256, reverting on
     * overflow (when the input is less than smallest int40 or
     * greater than largest int40).
     *
     * Counterpart to Solidity's `int40` operator.
     *
     * Requirements:
     *
     * - input must fit into 40 bits
     */
    function toInt40(int256 value) internal pure returns (int40 downcasted) {
        downcasted = int40(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(40, value);
        }
    }

    /**
     * @dev Returns the downcasted int32 from int256, reverting on
     * overflow (when the input is less than smallest int32 or
     * greater than largest int32).
     *
     * Counterpart to Solidity's `int32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toInt32(int256 value) internal pure returns (int32 downcasted) {
        downcasted = int32(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(32, value);
        }
    }

    /**
     * @dev Returns the downcasted int24 from int256, reverting on
     * overflow (when the input is less than smallest int24 or
     * greater than largest int24).
     *
     * Counterpart to Solidity's `int24` operator.
     *
     * Requirements:
     *
     * - input must fit into 24 bits
     */
    function toInt24(int256 value) internal pure returns (int24 downcasted) {
        downcasted = int24(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(24, value);
        }
    }

    /**
     * @dev Returns the downcasted int16 from int256, reverting on
     * overflow (when the input is less than smallest int16 or
     * greater than largest int16).
     *
     * Counterpart to Solidity's `int16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toInt16(int256 value) internal pure returns (int16 downcasted) {
        downcasted = int16(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(16, value);
        }
    }

    /**
     * @dev Returns the downcasted int8 from int256, reverting on
     * overflow (when the input is less than smallest int8 or
     * greater than largest int8).
     *
     * Counterpart to Solidity's `int8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits
     */
    function toInt8(int256 value) internal pure returns (int8 downcasted) {
        downcasted = int8(value);
        if (downcasted != value) {
            revert SafeCastOverflowedIntDowncast(8, value);
        }
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     */
    function toInt256(uint256 value) internal pure returns (int256) {
        // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
        if (value > uint256(type(int256).max)) {
            revert SafeCastOverflowedUintToInt(value);
        }
        return int256(value);
    }

    /**
     * @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump.
     */
    function toUint(bool b) internal pure returns (uint256 u) {
        assembly ("memory-safe") {
            u := iszero(iszero(b))
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant.
     *
     * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone.
     * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute
     * one branch when needed, making this function more expensive.
     */
    function ternary(bool condition, int256 a, int256 b) internal pure returns (int256) {
        unchecked {
            // branchless ternary works because:
            // b ^ (a ^ b) == a
            // b ^ 0 == b
            return b ^ ((a ^ b) * int256(SafeCast.toUint(condition)));
        }
    }

    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return ternary(a > b, a, b);
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return ternary(a < b, a, b);
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // Formula from the "Bit Twiddling Hacks" by Sean Eron Anderson.
            // Since `n` is a signed integer, the generated bytecode will use the SAR opcode to perform the right shift,
            // taking advantage of the most significant (or "sign" bit) in two's complement representation.
            // This opcode adds new most significant bits set to the value of the previous most significant bit. As a result,
            // the mask will either be `bytes32(0)` (if n is positive) or `~bytes32(0)` (if n is negative).
            int256 mask = n >> 255;

            // A `bytes32(0)` mask leaves the input unchanged, while a `~bytes32(0)` mask complements it.
            return uint256((n + mask) ^ mask);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Panic.sol)

pragma solidity ^0.8.20;

/**
 * @dev Helper library for emitting standardized panic codes.
 *
 * ```solidity
 * contract Example {
 *      using Panic for uint256;
 *
 *      // Use any of the declared internal constants
 *      function foo() { Panic.GENERIC.panic(); }
 *
 *      // Alternatively
 *      function foo() { Panic.panic(Panic.GENERIC); }
 * }
 * ```
 *
 * Follows the list from https://github.com/ethereum/solidity/blob/v0.8.24/libsolutil/ErrorCodes.h[libsolutil].
 *
 * _Available since v5.1._
 */
// slither-disable-next-line unused-state
library Panic {
    /// @dev generic / unspecified error
    uint256 internal constant GENERIC = 0x00;
    /// @dev used by the assert() builtin
    uint256 internal constant ASSERT = 0x01;
    /// @dev arithmetic underflow or overflow
    uint256 internal constant UNDER_OVERFLOW = 0x11;
    /// @dev division or modulo by zero
    uint256 internal constant DIVISION_BY_ZERO = 0x12;
    /// @dev enum conversion error
    uint256 internal constant ENUM_CONVERSION_ERROR = 0x21;
    /// @dev invalid encoding in storage
    uint256 internal constant STORAGE_ENCODING_ERROR = 0x22;
    /// @dev empty array pop
    uint256 internal constant EMPTY_ARRAY_POP = 0x31;
    /// @dev array out of bounds access
    uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32;
    /// @dev resource error (too large allocation or too large array)
    uint256 internal constant RESOURCE_ERROR = 0x41;
    /// @dev calling invalid internal function
    uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51;

    /// @dev Reverts with a panic code. Recommended to use with
    /// the internal constants with predefined codes.
    function panic(uint256 code) internal pure {
        assembly ("memory-safe") {
            mstore(0x00, 0x4e487b71)
            mstore(0x20, code)
            revert(0x1c, 0x24)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuardTransient.sol)

pragma solidity ^0.8.24;

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

/**
 * @dev Variant of {ReentrancyGuard} that uses transient storage.
 *
 * NOTE: This variant only works on networks where EIP-1153 is available.
 *
 * _Available since v5.1._
 */
abstract contract ReentrancyGuardTransient {
    using TransientSlot for *;

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant REENTRANCY_GUARD_STORAGE =
        0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_reentrancyGuardEntered()) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        REENTRANCY_GUARD_STORAGE.asBoolean().tstore(true);
    }

    function _nonReentrantAfter() private {
        REENTRANCY_GUARD_STORAGE.asBoolean().tstore(false);
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return REENTRANCY_GUARD_STORAGE.asBoolean().tload();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Strings.sol)

pragma solidity ^0.8.20;

import {Math} from "./math/Math.sol";
import {SignedMath} from "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant HEX_DIGITS = "0123456789abcdef";
    uint8 private constant ADDRESS_LENGTH = 20;

    /**
     * @dev The `value` string doesn't fit in the specified `length`.
     */
    error StringsInsufficientHexLength(uint256 value, uint256 length);

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            assembly ("memory-safe") {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                assembly ("memory-safe") {
                    mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toStringSigned(int256 value) internal pure returns (string memory) {
        return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        uint256 localValue = value;
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = HEX_DIGITS[localValue & 0xf];
            localValue >>= 4;
        }
        if (localValue != 0) {
            revert StringsInsufficientHexLength(value, length);
        }
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
     * representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its checksummed ASCII `string` hexadecimal
     * representation, according to EIP-55.
     */
    function toChecksumHexString(address addr) internal pure returns (string memory) {
        bytes memory buffer = bytes(toHexString(addr));

        // hash the hex part of buffer (skip length + 2 bytes, length 40)
        uint256 hashValue;
        assembly ("memory-safe") {
            hashValue := shr(96, keccak256(add(buffer, 0x22), 40))
        }

        for (uint256 i = 41; i > 1; --i) {
            // possible values for buffer[i] are 48 (0) to 57 (9) and 97 (a) to 102 (f)
            if (hashValue & 0xf > 7 && uint8(buffer[i]) > 96) {
                // case shift by xoring with 0x20
                buffer[i] ^= 0x20;
            }
            hashValue >>= 4;
        }
        return string(buffer);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/TransientSlot.sol)
// This file was procedurally generated from scripts/generate/templates/TransientSlot.js.

pragma solidity ^0.8.24;

/**
 * @dev Library for reading and writing value-types to specific transient storage slots.
 *
 * Transient slots are often used to store temporary values that are removed after the current transaction.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 *  * Example reading and writing values using transient storage:
 * ```solidity
 * contract Lock {
 *     using TransientSlot for *;
 *
 *     // Define the slot. Alternatively, use the SlotDerivation library to derive the slot.
 *     bytes32 internal constant _LOCK_SLOT = 0xf4678858b2b588224636b8522b729e7722d32fc491da849ed75b3fdf3c84f542;
 *
 *     modifier locked() {
 *         require(!_LOCK_SLOT.asBoolean().tload());
 *
 *         _LOCK_SLOT.asBoolean().tstore(true);
 *         _;
 *         _LOCK_SLOT.asBoolean().tstore(false);
 *     }
 * }
 * ```
 *
 * TIP: Consider using this library along with {SlotDerivation}.
 */
library TransientSlot {
    /**
     * @dev UDVT that represent a slot holding a address.
     */
    type AddressSlot is bytes32;

    /**
     * @dev Cast an arbitrary slot to a AddressSlot.
     */
    function asAddress(bytes32 slot) internal pure returns (AddressSlot) {
        return AddressSlot.wrap(slot);
    }

    /**
     * @dev UDVT that represent a slot holding a bool.
     */
    type BooleanSlot is bytes32;

    /**
     * @dev Cast an arbitrary slot to a BooleanSlot.
     */
    function asBoolean(bytes32 slot) internal pure returns (BooleanSlot) {
        return BooleanSlot.wrap(slot);
    }

    /**
     * @dev UDVT that represent a slot holding a bytes32.
     */
    type Bytes32Slot is bytes32;

    /**
     * @dev Cast an arbitrary slot to a Bytes32Slot.
     */
    function asBytes32(bytes32 slot) internal pure returns (Bytes32Slot) {
        return Bytes32Slot.wrap(slot);
    }

    /**
     * @dev UDVT that represent a slot holding a uint256.
     */
    type Uint256Slot is bytes32;

    /**
     * @dev Cast an arbitrary slot to a Uint256Slot.
     */
    function asUint256(bytes32 slot) internal pure returns (Uint256Slot) {
        return Uint256Slot.wrap(slot);
    }

    /**
     * @dev UDVT that represent a slot holding a int256.
     */
    type Int256Slot is bytes32;

    /**
     * @dev Cast an arbitrary slot to a Int256Slot.
     */
    function asInt256(bytes32 slot) internal pure returns (Int256Slot) {
        return Int256Slot.wrap(slot);
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(AddressSlot slot) internal view returns (address value) {
        assembly ("memory-safe") {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(AddressSlot slot, address value) internal {
        assembly ("memory-safe") {
            tstore(slot, value)
        }
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(BooleanSlot slot) internal view returns (bool value) {
        assembly ("memory-safe") {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(BooleanSlot slot, bool value) internal {
        assembly ("memory-safe") {
            tstore(slot, value)
        }
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(Bytes32Slot slot) internal view returns (bytes32 value) {
        assembly ("memory-safe") {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(Bytes32Slot slot, bytes32 value) internal {
        assembly ("memory-safe") {
            tstore(slot, value)
        }
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(Uint256Slot slot) internal view returns (uint256 value) {
        assembly ("memory-safe") {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(Uint256Slot slot, uint256 value) internal {
        assembly ("memory-safe") {
            tstore(slot, value)
        }
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(Int256Slot slot) internal view returns (int256 value) {
        assembly ("memory-safe") {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(Int256Slot slot, int256 value) internal {
        assembly ("memory-safe") {
            tstore(slot, value)
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @dev The address of the Ethereum
IERC20 constant ETH = IERC20(0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE);

/// @dev The constant value helps in calculating percentages
uint256 constant PPM = 1_000_000;

/// @notice Thrown when updating an address with zero address
error ZeroAddress();

/// @notice Thrown when updating with an array of no values
error ZeroLengthArray();

/// @notice Thrown when updating with the same value as previously stored
error IdenticalValue();

/// @notice Thrown when two array lengths does not match
error ArrayLengthMismatch();

/// @notice Thrown when sign is invalid
error InvalidSignature();

/// @notice Thrown when input array length is zero
error InvalidData();

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @member token The token address
/// @member amount The token amount
struct ClaimInfo {
    IERC20 token;
    uint256 amount;
}

interface IClaims {
    /// @notice Sets claim token and amount in the given round
    /// @param to The address of the leader
    /// @param claims The claim token and amount of the leader
    function addClaimInfo(address[] calldata to, uint32 round, ClaimInfo[] calldata claims) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IRounds } from "./IRounds.sol";

interface ILockup {
    /// @notice Returns locked amount of user at given index
    /// @param user The address of the user
    /// @param index The index number at which user has locked amount
    function stakes(address user, uint256 index) external view returns (uint256 amount, uint256 endTime);

    /// @notice Returns the minimum lockup amount
    function minStakeAmount() external view returns (uint256);
}

interface IPreSale is IRounds {
    /// @notice Purchases token with claim amount
    /// @param token The purchase token
    /// @param tokenPrice The current price of token in 10 decimals
    /// @param referenceNormalizationFactor The value to handle decimals
    /// @param amount The purchase amount
    /// @param minAmountToken The minimum amount of token recipient will get
    /// @param indexes The indexes at which user has locked tokens
    /// @param recipient The address of the recipient
    /// @param round The round in which user will purchase
    function purchaseWithClaim(
        IERC20 token,
        uint256 tokenPrice,
        uint8 referenceNormalizationFactor,
        uint256 amount,
        uint256 minAmountToken,
        uint256[] calldata indexes,
        address recipient,
        uint32 round
    ) external payable;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

interface IRounds {
    /// @notice Returns the round details of the round
    function rounds(uint32 round) external view returns (uint256 startTime, uint256 endTime, uint256 price);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { Ownable, Ownable2Step } from "@openzeppelin/contracts/access/Ownable2Step.sol";

import { TokenRegistry } from "./TokenRegistry.sol";
import { IRounds } from "./IRounds.sol";

import { ZeroAddress, ArrayLengthMismatch, ZeroLengthArray } from "./Common.sol";

/// @title Rounds contract
/// @notice Implements the round creation and updating of presale
/// @dev The rounds contract allows you to create a round, update a round
abstract contract Rounds is IRounds, TokenRegistry {
    /// @member access The access of the token
    /// @member customPrice The customPrice price in the round for the token
    struct AllowedToken {
        bool access;
        uint256 customPrice;
    }

    /// @member startTime The start time of round
    /// @member endTime The end time of round
    /// @member price The price in usd per token
    struct RoundData {
        uint256 startTime;
        uint256 endTime;
        uint256 price;
    }

    /// @dev The round index of last round created
    uint32 internal immutable _startRound;

    /// @dev The count of rounds created
    uint32 internal _roundIndex;

    /// @notice mapping gives us access info of the token in a given round
    mapping(uint32 => mapping(IERC20 => AllowedToken)) public allowedTokens;

    /// @inheritdoc IRounds
    mapping(uint32 => RoundData) public rounds;

    /// @dev Emitted when creating a new round
    event RoundCreated(uint32 indexed newRound, RoundData roundData);

    /// @dev Emitted when round is updated
    event RoundUpdated(uint32 indexed round, RoundData roundData);

    /// @dev Emitted when token access is updated
    event TokensAccessUpdated(uint32 indexed round, IERC20 indexed token, bool indexed access, uint256 customPrice);

    /// @notice Thrown when round time is not started
    error RoundNotStarted();

    /// @notice Thrown when round time is ended
    error RoundEnded();

    /// @notice Thrown when Round is not created
    error IncorrectRound();

    /// @notice Thrown when new round price is less than previous round price
    error PriceLessThanOldRound();

    /// @notice Thrown when round start time is invalid
    error InvalidStartTime();

    /// @notice Thrown when round end time is invalid
    error InvalidEndTime();

    /// @notice Thrown when new price is invalid
    error PriceInvalid();

    /// @notice Thrown when startTime is incorrect when updating round
    error IncorrectStartTime();

    /// @notice Thrown when endTime is incorrect when updating round
    error IncorrectEndTime();

    /// @notice Thrown when round price is greater than next round while updating
    error PriceGreaterThanNextRound();

    /// @notice Thrown when Token is restricted in given round
    error TokenDisallowed();

    /// @dev Constructor.
    /// @param lastRound The last round created
    constructor(uint32 lastRound) {
        _startRound = lastRound;
        _roundIndex = lastRound;
    }

    /// @notice Creates a new round
    /// @param startTime The startTime of the round
    /// @param endTime The endTime of the round
    /// @param price The presale token price in 18 decimals, because our calculations returns a value in 36 decimals and to get returning value in 18 decimals we divide by round price
    function createNewRound(uint256 startTime, uint256 endTime, uint256 price) external onlyOwner {
        RoundData memory prevRoundData = rounds[_roundIndex];
        uint32 newRound = ++_roundIndex;

        if (price < prevRoundData.price) {
            revert PriceLessThanOldRound();
        }

        if (startTime < prevRoundData.endTime) {
            revert InvalidStartTime();
        }

        _verifyRound(startTime, endTime, price);
        prevRoundData = RoundData({ startTime: startTime, endTime: endTime, price: price });
        rounds[newRound] = prevRoundData;

        emit RoundCreated({ newRound: newRound, roundData: prevRoundData });
    }

    /// @notice Updates the access of tokens in a given round
    /// @param round The round in which you want to update
    /// @param tokens addresses of the tokens
    /// @param accesses The access for the tokens
    /// @param customPrices The customPrice prices if any for the tokens
    function updateAllowedTokens(
        uint32 round,
        IERC20[] calldata tokens,
        bool[] calldata accesses,
        uint256[] calldata customPrices
    ) external onlyOwner {
        uint256 tokensLength = tokens.length;

        if (tokensLength == 0) {
            revert ZeroLengthArray();
        }

        if (tokensLength != accesses.length || accesses.length != customPrices.length) {
            revert ArrayLengthMismatch();
        }

        mapping(IERC20 => AllowedToken) storage selectedRound = allowedTokens[round];
        for (uint256 i = 0; i < tokensLength; ++i) {
            IERC20 token = tokens[i];

            if (address(token) == address(0)) {
                revert ZeroAddress();
            }

            AllowedToken memory allowedToken = AllowedToken({ access: accesses[i], customPrice: customPrices[i] });
            selectedRound[token] = allowedToken;

            emit TokensAccessUpdated({
                round: round,
                token: token,
                access: allowedToken.access,
                customPrice: allowedToken.customPrice
            });
        }
    }

    /// @notice Updates round data
    /// @param round The Round that will be updated
    /// @param startTime The StartTime of the round
    /// @param endTime The EndTime of the round
    /// @param price The price of the round in 18 decimals
    function updateRound(uint32 round, uint256 startTime, uint256 endTime, uint256 price) external onlyOwner {
        if (round <= _startRound || round > _roundIndex) {
            revert IncorrectRound();
        }

        RoundData memory previousRound = rounds[round - 1];
        RoundData memory nextRound = rounds[round + 1];

        if (startTime < previousRound.endTime) {
            revert IncorrectStartTime();
        }

        if (round != _roundIndex && endTime > nextRound.startTime) {
            revert IncorrectEndTime();
        }

        if (price < previousRound.price) {
            revert PriceLessThanOldRound();
        }

        if (round != _roundIndex && price > nextRound.price) {
            revert PriceGreaterThanNextRound();
        }

        _verifyRound(startTime, endTime, price);
        rounds[round] = RoundData({ startTime: startTime, endTime: endTime, price: price });

        emit RoundUpdated({ round: round, roundData: rounds[round] });
    }

    /// @notice Returns total rounds created
    /// @return The Round count
    function getRoundCount() external view returns (uint32) {
        return _roundIndex;
    }

    /// @dev Validates array length and values
    function _validateArrays(uint256 firstLength, uint256 secondLength) internal pure {
        if (firstLength == 0) {
            revert ZeroLengthArray();
        }

        if (firstLength != secondLength) {
            revert ArrayLengthMismatch();
        }
    }

    /// @dev Checks round start and end time, reverts if Invalid
    function _verifyInRound(uint32 round) internal view {
        RoundData memory dataRound = rounds[round];
        if (block.timestamp < dataRound.startTime) {
            revert RoundNotStarted();
        }

        if (block.timestamp >= dataRound.endTime) {
            revert RoundEnded();
        }
    }

    /// @dev Checks the validity of startTime, endTime and price
    function _verifyRound(uint256 startTime, uint256 endTime, uint256 price) internal view {
        if (startTime < block.timestamp) {
            revert InvalidStartTime();
        }

        if (endTime <= startTime) {
            revert InvalidEndTime();
        }

        if (price == 0) {
            revert PriceInvalid();
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.25;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { Ownable, Ownable2Step } from "@openzeppelin/contracts/access/Ownable2Step.sol";
import { AggregatorV3Interface } from "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";

import { ZeroAddress, ArrayLengthMismatch, ZeroLengthArray, IdenticalValue } from "./Common.sol";

/// @title Tokens Registry contract
/// @notice Implements the price feed of the tokens
abstract contract TokenRegistry is Ownable2Step {
    /// @member priceFeed The Chainlink price feed address
    /// @member normalizationFactorForToken The normalization factor to achieve return value of 18 decimals, while calculating presale token purchases and always with different token decimals
    /// @member normalizationFactorForNFT The normalization factor is the value which helps us to convert decimals of USDT to purchase token decimals and always with different token decimals
    /// @member tolerance The pricefeed live price should be updated in tolerance time to get better price
    struct PriceFeedData {
        AggregatorV3Interface priceFeed;
        uint8 normalizationFactorForToken;
        uint8 normalizationFactorForNFT;
        uint256 tolerance;
    }

    /// @notice Gives us onchain price oracle address of the token
    mapping(IERC20 => PriceFeedData) public tokenData;

    /// @dev Emitted when address of Chainlink price feed contract is added for the token
    event TokenDataAdded(IERC20 token, PriceFeedData data);

    /// @notice Sets token price feeds and normalization factors
    /// @param tokens The addresses of the tokens
    /// @param priceFeedData Contains the price feed of the tokens, tolerance and the normalization factor
    function setTokenPriceFeed(IERC20[] calldata tokens, PriceFeedData[] calldata priceFeedData) external onlyOwner {
        uint256 tokensLength = tokens.length;

        if (tokensLength == 0) {
            revert ZeroLengthArray();
        }

        if (tokensLength != priceFeedData.length) {
            revert ArrayLengthMismatch();
        }

        for (uint256 i = 0; i < tokensLength; ++i) {
            PriceFeedData calldata data = priceFeedData[i];
            IERC20 token = tokens[i];
            PriceFeedData memory currentPriceFeedData = tokenData[token];

            if (address(token) == address(0) || address(data.priceFeed) == address(0)) {
                revert ZeroAddress();
            }

            if (
                currentPriceFeedData.priceFeed == data.priceFeed &&
                currentPriceFeedData.normalizationFactorForToken == data.normalizationFactorForToken &&
                currentPriceFeedData.normalizationFactorForNFT == data.normalizationFactorForNFT &&
                currentPriceFeedData.tolerance == data.tolerance
            ) {
                revert IdenticalValue();
            }

            emit TokenDataAdded({ token: token, data: data });
            tokenData[token] = data;
        }
    }
}

{
  "viaIR": true,
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "evmVersion": "cancun",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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IERC20","name":"token","type":"address"},{"internalType":"uint8","name":"referenceNormalizationFactor","type":"uint8"},{"internalType":"uint256","name":"referenceTokenPrice","type":"uint256"},{"internalType":"uint256","name":"purchaseAmount","type":"uint256"},{"internalType":"uint256","name":"minAmountToken","type":"uint256"},{"internalType":"uint256[]","name":"indexes","type":"uint256[]"},{"internalType":"address[]","name":"leaders","type":"address[]"},{"internalType":"uint256[]","name":"percentages","type":"uint256[]"},{"internalType":"string","name":"code","type":"string"},{"internalType":"uint32","name":"round","type":"uint32"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"purchaseTokenWithToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract 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IERC20[]","name":"tokens","type":"address[]"},{"components":[{"internalType":"contract AggregatorV3Interface","name":"priceFeed","type":"address"},{"internalType":"uint8","name":"normalizationFactorForToken","type":"uint8"},{"internalType":"uint8","name":"normalizationFactorForNFT","type":"uint8"},{"internalType":"uint256","name":"tolerance","type":"uint256"}],"internalType":"struct TokenRegistry.PriceFeedData[]","name":"priceFeedData","type":"tuple[]"}],"name":"setTokenPriceFeed","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signerWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"name":"tokenData","outputs":[{"internalType":"contract AggregatorV3Interface","name":"priceFeed","type":"address"},{"internalType":"uint8","name":"normalizationFactorForToken","type":"uint8"},{"internalType":"uint8","name":"normalizationFactorForNFT","type":"uint8"},{"internalType":"uint256","name":"tolerance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalPurchases","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"round","type":"uint32"},{"internalType":"contract IERC20[]","name":"tokens","type":"address[]"},{"internalType":"bool[]","name":"accesses","type":"bool[]"},{"internalType":"uint256[]","name":"customPrices","type":"uint256[]"}],"name":"updateAllowedTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"which","type":"address"},{"internalType":"bool","name":"access","type":"bool"}],"name":"updateBlackListedUser","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newBurnWallet","type":"address"}],"name":"updateBurnWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newPlatformWallet","type":"address"}],"name":"updatePlatformWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"newPrices","type":"uint256[]"}],"name":"updatePricing","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newProjectWallet","type":"address"}],"name":"updateProjectWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"round","type":"uint32"},{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"uint256","name":"price","type":"uint256"}],"name":"updateRound","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

-----Decoded View---------------
Arg [0] : projectWalletAddress (address): 0x60bCf12A2dA761E909C3bc29f1cD13Ef1e4847A0
Arg [1] : platformWalletAddress (address): 0xA2F78A912BA4337692a399407728784FB6B24FB1
Arg [2] : burnWalletAddress (address): 0xe1dE0eF1fa1F3e5e1f2b2aD134Fb2C3135CEfa3B
Arg [3] : signerAddress (address): 0x8002917a84DB1B1Ef57f7Cf0B19f5F5c611db9D5
Arg [4] : claimsContractAddress (address): 0x1890cF752f1be4D60f3b22168c7A6aFEbd9D74C7
Arg [5] : lockupContractAddress (address): 0x6A1aa5ac35f38Bdb25BBD976E8eca942b23260b2
Arg [6] : owner (address): 0x5D7F0ED4EA8EB7a6e0A6Acf1DE9c91Be06968716
Arg [7] : lastRound (uint32): 0
Arg [8] : nftPrices (uint256[]): 200000000,500000000,1000000000,5000000000,10000000000,30000000000,75000000000
Arg [9] : initMaxCap (uint256): 5250000000000000000000000000

-----Encoded View---------------
18 Constructor Arguments found :
Arg [0] : 00000000000000000000000060bcf12a2da761e909c3bc29f1cd13ef1e4847a0
Arg [1] : 000000000000000000000000a2f78a912ba4337692a399407728784fb6b24fb1
Arg [2] : 000000000000000000000000e1de0ef1fa1f3e5e1f2b2ad134fb2c3135cefa3b
Arg [3] : 0000000000000000000000008002917a84db1b1ef57f7cf0b19f5f5c611db9d5
Arg [4] : 0000000000000000000000001890cf752f1be4d60f3b22168c7a6afebd9d74c7
Arg [5] : 0000000000000000000000006a1aa5ac35f38bdb25bbd976e8eca942b23260b2
Arg [6] : 0000000000000000000000005d7f0ed4ea8eb7a6e0a6acf1de9c91be06968716
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [9] : 000000000000000000000000000000000000000010f6b2be4706a13fc2000000
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [11] : 000000000000000000000000000000000000000000000000000000000bebc200
Arg [12] : 000000000000000000000000000000000000000000000000000000001dcd6500
Arg [13] : 000000000000000000000000000000000000000000000000000000003b9aca00
Arg [14] : 000000000000000000000000000000000000000000000000000000012a05f200
Arg [15] : 00000000000000000000000000000000000000000000000000000002540be400
Arg [16] : 00000000000000000000000000000000000000000000000000000006fc23ac00
Arg [17] : 0000000000000000000000000000000000000000000000000000001176592e00