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// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {AccessControlDefaultAdminRulesUpgradeable} from "@openzeppelin/contracts-upgradeable/access/extensions/AccessControlDefaultAdminRulesUpgradeable.sol";
import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
import {ERC165Upgradeable, IERC165} from "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {IBascule} from "../bascule/interfaces/IBascule.sol";
import {IAssetRouter} from "./interfaces/IAssetRouter.sol";
import {IAssetOperation} from "./interfaces/IAssetOperation.sol";
import {IOracle} from "./interfaces/IOracle.sol";
import {IHandler, GMPUtils} from "../gmp/IHandler.sol";
import {IMailbox} from "../gmp/IMailbox.sol";
import {IBaseLBTC} from "./interfaces/IBaseLBTC.sol";
import {Actions} from "../libs/Actions.sol";
import {BitcoinUtils} from "../libs/BitcoinUtils.sol";
import {LChainId} from "../libs/LChainId.sol";
import {Assert} from "./libraries/Assert.sol";
import {Assets} from "./libraries/Assets.sol";
import {Validation} from "./libraries/Validation.sol";

/**
 * @title Router to store xxxLBTC Staking paths and token's name.
 * @author Lombard.Finance
 * @notice This contract is part of the Lombard.Finance protocol
 */
contract AssetRouter is
    IAssetRouter,
    IHandler,
    AccessControlDefaultAdminRulesUpgradeable,
    ReentrancyGuardUpgradeable
{
    struct TokenConfig {
        uint256 redeemFee;
        uint256 redeemForBtcMinAmount;
        uint256 maximumMintCommission;
        IOracle oracle;
        uint64 toNativeCommission;
    }

    /// @custom:storage-location erc7201:lombardfinance.storage.AssetRouter
    struct AssetRouterStorage {
        bytes32 ledgerChainId;
        bytes32 bitcoinChainId;
        mapping(bytes32 => Routes) routes;
        mapping(bytes32 => bool) usedPayloads; // sha256(rawPayload) => used
        IMailbox mailbox;
        IBascule bascule;
        address nativeToken;
        mapping(address => TokenConfig) tokenConfigs;
    }

    struct Routes {
        mapping(bytes32 => Route) direction;
    }

    struct Route {
        mapping(bytes32 => RouteType) toTokens;
    }

    // keccak256(abi.encode(uint256(keccak256("lombardfinance.storage.AssetRouter")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ASSETS_ROUTER_STORAGE_LOCATION =
        0x634af38ba2564e2d74d7d4e289db84afe1b0f1c101e1349f6428c2bd44a09b00;

    bytes32 public constant OPERATOR_ROLE = keccak256("OPERATOR_ROLE");
    bytes32 public constant CALLER_ROLE = keccak256("CALLER_ROLE");
    bytes32 public constant CLAIMER_ROLE = keccak256("CLAIMER_ROLE");

    /// @dev https://docs.openzeppelin.com/upgrades-plugins/1.x/writing-upgradeable#initializing_the_implementation_contract
    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    function initialize(
        address owner_,
        uint48 initialOwnerDelay_,
        bytes32 ledgerChainId_,
        bytes32 bitcoinChainId_,
        address mailbox_,
        address bascule_
    ) external initializer {
        __AccessControlDefaultAdminRules_init(initialOwnerDelay_, owner_);
        __ReentrancyGuard_init();
        __AssetRouter_init(ledgerChainId_, bitcoinChainId_, mailbox_, bascule_);
    }

    function __AssetRouter_init(
        bytes32 ledgerChainId_,
        bytes32 bitcoinChainId_,
        address mailbox_,
        address bascule_
    ) internal onlyInitializing {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        _changeMailbox(mailbox_);
        _changeBascule(bascule_);
        $.ledgerChainId = ledgerChainId_;
        $.bitcoinChainId = bitcoinChainId_;
    }

    function setRoute(
        bytes32 fromToken,
        bytes32 fromChainId,
        bytes32 toToken,
        bytes32 toChainId,
        RouteType routeType
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        bytes32 key = keccak256(abi.encode(fromToken, fromChainId));
        Route storage r = $.routes[key].direction[toChainId];
        r.toTokens[toToken] = routeType;
        if (fromChainId == LChainId.get()) {
            _checkAndSetNativeToken($, fromToken);
        }
        if (toChainId == LChainId.get()) {
            _checkAndSetNativeToken($, toToken);
        }
        emit AssetRouter_RouteSet(
            fromToken,
            fromChainId,
            toToken,
            toChainId,
            routeType
        );
    }

    function removeRoute(
        bytes32 fromToken,
        bytes32 fromChainId,
        bytes32 toToken,
        bytes32 toChainId
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        bytes32 key = keccak256(abi.encode(fromToken, fromChainId));
        Route storage r = $.routes[key].direction[toChainId];
        delete r.toTokens[toToken];
        emit AssetRouter_RouteRemoved(
            fromToken,
            fromChainId,
            toToken,
            toChainId
        );
    }

    function changeRedeemFee(uint256 fee) external onlyRole(CALLER_ROLE) {
        _setRedeemFeeForToken(_msgSender(), fee);
    }

    function changeRedeemFee(
        address token,
        uint256 fee
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _setRedeemFeeForToken(token, fee);
    }

    function changeRedeemForBtcMinAmount(
        uint256 minAmount
    ) external onlyRole(CALLER_ROLE) {
        _setRedeemForBtcMinAmountForToken(_msgSender(), minAmount);
    }

    function changeRedeemForBtcMinAmount(
        address token,
        uint256 minAmount
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _setRedeemForBtcMinAmountForToken(token, minAmount);
    }

    function toggleRedeem() external onlyRole(CALLER_ROLE) {
        _toggleRedeemForToken(_msgSender());
    }

    function changeTokenConfig(
        address token,
        uint256 redeemFee,
        uint256 redeemForBtcMinAmount,
        bool redeemEnabled
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _setRedeemFeeForToken(token, redeemFee);
        _setRedeemForBtcMinAmountForToken(token, redeemForBtcMinAmount);
        _setRedeemForToken(token, redeemEnabled);
    }

    function changeTokenConfigExt(
        address token,
        uint256 redeemFee,
        uint256 redeemForBtcMinAmount,
        address oracle_,
        uint256 maximumMintCommission_,
        uint64 toNativeCommission_
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _setRedeemFeeForToken(token, redeemFee);
        _setRedeemForBtcMinAmountForToken(token, redeemForBtcMinAmount);
        _changeOracle(token, oracle_);
        _changeToNativeCommission(token, toNativeCommission_);
        _setMaxMintCommission(token, maximumMintCommission_);
    }

    function tokenConfig(
        address token
    )
        external
        view
        returns (
            uint256 redeemFee,
            uint256 redeemForBtcMinAmount,
            bool isRedeemEnabled
        )
    {
        (redeemFee, redeemForBtcMinAmount, isRedeemEnabled) = _getTokenConfig(
            token
        );
    }

    function _checkAndSetNativeToken(
        AssetRouterStorage storage $,
        bytes32 token
    ) internal {
        address tokenAddress = GMPUtils.bytes32ToAddress(token);
        grantRole(CALLER_ROLE, tokenAddress);
        if (IBaseLBTC(tokenAddress).isNative()) {
            if ($.nativeToken != address(0) && $.nativeToken != tokenAddress) {
                revert AssetRouter_WrongNativeToken();
            }
            $.nativeToken = tokenAddress;
        }
    }

    function getRouteType(
        bytes32 fromToken,
        bytes32 fromChainId,
        bytes32 toChainId,
        bytes32 toToken
    ) external view override returns (RouteType) {
        return _getRouteType(fromToken, fromChainId, toChainId, toToken);
    }

    function _getRouteType(
        bytes32 fromToken,
        bytes32 fromChainId,
        bytes32 toChainId,
        bytes32 toToken
    ) internal view returns (RouteType) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        bytes32 key = keccak256(abi.encode(fromToken, fromChainId));
        Route storage r = $.routes[key].direction[toChainId];
        return r.toTokens[toToken];
    }

    function _isAllowedCaller(address caller) internal view returns (bool) {
        return hasRole(CALLER_ROLE, caller);
    }

    function ratio(address token) external view override returns (uint256) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        if (
            IBaseLBTC(token).isNative() &&
            (address($.tokenConfigs[token].oracle) == address(0))
        ) {
            return 1 ether;
        }
        return $.tokenConfigs[token].oracle.ratio();
    }

    function getRate(address token) external view override returns (uint256) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        if (
            IBaseLBTC(token).isNative() &&
            (address($.tokenConfigs[token].oracle) == address(0))
        ) {
            return 1 ether;
        }
        return $.tokenConfigs[token].oracle.getRate();
    }

    function bitcoinChainId() external view override returns (bytes32) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        return $.bitcoinChainId;
    }

    function _getAssetRouterStorage()
        private
        pure
        returns (AssetRouterStorage storage $)
    {
        assembly {
            $.slot := ASSETS_ROUTER_STORAGE_LOCATION
        }
    }

    /**
     * Change the address of the Bascule drawbridge contract.
     * Setting the address to 0 disables the Bascule check.
     * @param newVal The new address.
     *
     * Emits a {BasculeChanged} event.
     */
    function changeBascule(
        address newVal
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _changeBascule(newVal);
    }

    function bascule() external view override returns (IBascule) {
        return _getAssetRouterStorage().bascule;
    }

    /**
     * Change the address of the Oracle contract.
     * Setting the address to 0 is nor allowed.
     * @param newVal The new address.
     *
     * Emits a {OracleChanged} event.
     */
    function changeOracle(
        address token,
        address newVal
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _changeOracle(token, newVal);
    }

    function oracle(address token) external view override returns (IOracle) {
        return _getAssetRouterStorage().tokenConfigs[token].oracle;
    }

    /**
     * Change the address of the Mailbox contract.
     * Setting the address to 0 is not allowed.
     * @param newVal The new address.
     *
     * Emits a {MailboxChanged} event.
     */
    function changeMailbox(
        address newVal
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _changeMailbox(newVal);
    }

    function mailbox() external view override returns (IMailbox) {
        return _getAssetRouterStorage().mailbox;
    }

    function changeToNativeCommission(
        address token,
        uint64 newValue
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _changeToNativeCommission(token, newValue);
    }

    function changeNativeToken(
        address newValue
    ) external onlyRole(DEFAULT_ADMIN_ROLE) {
        _changeNativeToken(newValue);
    }

    /**
     * @notice Set the contract current fee for mint
     * @param fee New fee value
     * @dev zero allowed to disable fee
     */
    function setMaxMintCommission(
        address token,
        uint256 fee
    ) external onlyRole(OPERATOR_ROLE) {
        _setMaxMintCommission(token, fee);
    }

    function deposit(
        address fromAddress,
        address toToken,
        uint256 amount
    ) external nonReentrant {
        address sender = address(_msgSender());
        if (sender != fromAddress && sender != toToken) {
            revert AssetRouter_Unauthorized();
        }
        _deposit(
            fromAddress,
            LChainId.get(),
            GMPUtils.addressToBytes32(toToken),
            GMPUtils.addressToBytes32(fromAddress),
            amount
        );
    }

    function deposit(
        bytes32 tolChainId,
        bytes32 toToken,
        bytes32 recipient,
        uint256 amount
    ) external nonReentrant {
        address sender = address(_msgSender());
        _deposit(sender, tolChainId, toToken, recipient, amount);
    }

    function _deposit(
        address fromAddress,
        bytes32 tolChainId,
        bytes32 toToken,
        bytes32 recipient,
        uint256 amount
    ) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        if (
            _getRouteType(
                GMPUtils.addressToBytes32($.nativeToken),
                LChainId.get(),
                tolChainId,
                toToken
            ) != RouteType.DEPOSIT
        ) {
            revert IAssetOperation.AssetOperation_DepositNotAllowed();
        }

        bytes memory rawPayload = Assets.encodeDepositRequest(
            tolChainId,
            toToken,
            GMPUtils.addressToBytes32(fromAddress),
            recipient,
            amount
        );

        $.mailbox.send(
            $.ledgerChainId,
            Assets.BTC_STAKING_MODULE_ADDRESS,
            Assets.LEDGER_CALLER,
            rawPayload
        );
        IBaseLBTC($.nativeToken).burn(fromAddress, amount);
    }

    function calcUnstakeRequestAmount(
        address token,
        bytes calldata scriptPubkey,
        uint256 amount
    ) external view returns (uint256 amountAfterFee, bool isAboveMinLimit) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        TokenConfig storage tokenCfg = $.tokenConfigs[token];
        if (amount <= tokenCfg.redeemFee) {
            revert AssetRouter_FeeGreaterThanAmount();
        }
        if (IBaseLBTC(token).isNative()) {
            (amountAfterFee, , isAboveMinLimit) = Validation
                .calcFeeAndDustLimit(
                    scriptPubkey,
                    amount - tokenCfg.redeemFee,
                    tokenCfg.toNativeCommission,
                    tokenCfg.redeemForBtcMinAmount
                );
            return (amountAfterFee, isAboveMinLimit);
        }
        (amountAfterFee, , isAboveMinLimit) = Validation.calcFeeAndDustLimit(
            scriptPubkey,
            amount - tokenCfg.redeemFee,
            tokenCfg.toNativeCommission,
            tokenCfg.redeemForBtcMinAmount
        );
        return (amountAfterFee, isAboveMinLimit);
    }

    function redeemForBtc(
        address fromAddress,
        address fromToken,
        bytes calldata recipient,
        uint256 amount
    ) external nonReentrant {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        uint256 amountAfterFee = 0;
        TokenConfig storage tokenCfg = $.tokenConfigs[fromToken];
        if (amount <= tokenCfg.redeemFee) {
            revert AssetRouter_FeeGreaterThanAmount();
        }
        bytes32 gmpRecipient;
        bool isNative = false;
        if (IBaseLBTC(fromToken).isNative()) {
            amountAfterFee = Validation.redeemFee(
                recipient,
                amount - tokenCfg.redeemFee,
                tokenCfg.toNativeCommission,
                tokenCfg.redeemForBtcMinAmount
            );
            gmpRecipient = Assets.ASSETS_MODULE_ADDRESS;
            isNative = true;
        } else {
            amountAfterFee = Validation.redeemFee(
                recipient,
                amount - tokenCfg.redeemFee,
                tokenCfg.toNativeCommission,
                tokenCfg.redeemForBtcMinAmount
            );
            gmpRecipient = Assets.BTC_STAKING_MODULE_ADDRESS;
        }
        _redeem(
            $,
            fromAddress,
            $.bitcoinChainId,
            fromToken,
            Assets.BITCOIN_NATIVE_COIN,
            recipient,
            amountAfterFee,
            amount - amountAfterFee,
            gmpRecipient,
            isNative
        );
    }

    function redeem(
        address fromAddress,
        bytes32 tolChainId,
        address fromToken,
        bytes32 toToken,
        bytes32 recipient,
        uint256 amount
    ) external nonReentrant {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        if (tolChainId == $.bitcoinChainId) {
            revert AssertRouter_WrongRedeemDestinationChain();
        }
        _redeem(
            $,
            fromAddress,
            tolChainId,
            fromToken,
            toToken,
            abi.encodePacked(recipient),
            amount,
            0,
            Assets.BTC_STAKING_MODULE_ADDRESS,
            false
        );
    }

    function redeem(
        address fromAddress,
        address fromToken,
        uint256 amount
    ) external nonReentrant {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        _redeem(
            $,
            fromAddress,
            LChainId.get(),
            fromToken,
            GMPUtils.addressToBytes32($.nativeToken),
            abi.encodePacked(GMPUtils.addressToBytes32(fromAddress)),
            amount,
            0,
            Assets.BTC_STAKING_MODULE_ADDRESS,
            false
        );
    }

    function _redeem(
        AssetRouterStorage storage $,
        address fromAddress,
        bytes32 tolChainId,
        address fromToken,
        bytes32 toToken,
        bytes memory recipient,
        uint256 amount,
        uint256 fee,
        bytes32 gmpRecipient,
        bool isNative
    ) internal {
        if (_msgSender() != fromAddress && _msgSender() != fromToken) {
            revert AssetRouter_Unauthorized();
        }
        if (!_isAllowedCaller(fromToken)) {
            revert IAssetOperation.NotStakingToken();
        }
        bytes32 fromTokenBytes = GMPUtils.addressToBytes32(fromToken);
        if (
            _getRouteType(
                fromTokenBytes,
                LChainId.get(),
                tolChainId,
                toToken
            ) != RouteType.REDEEM
        ) {
            revert IAssetOperation.AssetOperation_RedeemNotAllowed();
        }
        IBaseLBTC tokenContract = IBaseLBTC(fromToken);
        if (fee == 0) {
            uint256 redeemFee = $.tokenConfigs[fromToken].redeemFee;
            if (amount <= redeemFee) {
                revert AssetRouter_FeeGreaterThanAmount();
            }
            amount -= redeemFee;
            fee = redeemFee;
        }
        bytes memory rawPayload;
        if (isNative) {
            rawPayload = Assets.encodeRedeemNativeRequest(
                GMPUtils.addressToBytes32(fromAddress),
                recipient,
                amount
            );
        } else {
            rawPayload = Assets.encodeRedeemRequest(
                tolChainId,
                fromTokenBytes,
                GMPUtils.addressToBytes32(fromAddress),
                recipient,
                amount
            );
        }

        $.mailbox.send(
            $.ledgerChainId,
            gmpRecipient,
            Assets.LEDGER_CALLER,
            rawPayload
        );
        if (fee > 0) {
            tokenContract.mint(tokenContract.getTreasury(), fee);
        }
        tokenContract.burn(fromAddress, amount + fee);
    }

    function mint(
        bytes calldata rawPayload,
        bytes calldata proof
    ) external nonReentrant returns (address) {
        (bool success, address recipient, , ) = _mint(rawPayload, proof);
        if (!success) {
            revert AssetRouter_MintProcessingError();
        }
        return recipient;
    }

    function batchMint(
        bytes[] calldata payload,
        bytes[] calldata proof
    ) external nonReentrant {
        Assert.equalLength(payload.length, proof.length);
        for (uint256 i; i < payload.length; ++i) {
            (bool success, , , ) = _mint(payload[i], proof[i]);
            if (!success) {
                bytes32 payloadHash = sha256(payload[i]);
                emit AssetRouter_BatchMintError(payloadHash, "", "");
            }
        }
    }

    function mintWithFee(
        bytes calldata mintPayload,
        bytes calldata proof,
        bytes calldata feePayload,
        bytes calldata userSignature
    ) external nonReentrant onlyRole(CLAIMER_ROLE) {
        bool success = _mintWithFee(
            mintPayload,
            proof,
            feePayload,
            userSignature
        );
        if (!success) {
            revert AssetRouter_MintProcessingError();
        }
    }

    function batchMintWithFee(
        bytes[] calldata mintPayload,
        bytes[] calldata proof,
        bytes[] calldata feePayload,
        bytes[] calldata userSignature
    ) external nonReentrant onlyRole(CLAIMER_ROLE) {
        Assert.equalLength(mintPayload.length, proof.length);
        Assert.equalLength(mintPayload.length, feePayload.length);
        Assert.equalLength(mintPayload.length, userSignature.length);

        for (uint256 i; i < mintPayload.length; ++i) {
            bool success = _mintWithFee(
                mintPayload[i],
                proof[i],
                feePayload[i],
                userSignature[i]
            );
            if (!success) {
                bytes32 payloadHash = sha256(mintPayload[i]);
                emit AssetRouter_BatchMintError(payloadHash, "", new bytes(0));
            }
        }
    }

    function _mint(
        bytes calldata rawPayload,
        bytes calldata proof
    ) internal returns (bool, address, address, uint256) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        (, bool success, bytes memory result) = $.mailbox.deliverAndHandle(
            rawPayload,
            proof
        );
        if (!success) {
            return (false, address(0), address(0), 0);
        }
        (address recipient, address token, uint256 amount) = abi.decode(
            result,
            (address, address, uint256)
        );
        return (success, recipient, token, amount);
    }

    function _mintWithFee(
        bytes calldata mintPayload,
        bytes calldata proof,
        bytes calldata feePayload,
        bytes calldata userSignature
    ) internal virtual returns (bool) {
        (
            bool success,
            address recipient,
            address token,
            uint256 amount
        ) = _mint(mintPayload, proof);
        if (!success) {
            return false;
        }
        IBaseLBTC tokenContract = IBaseLBTC(token);

        Assert.selector(feePayload, Actions.FEE_APPROVAL_ACTION);
        Actions.FeeApprovalAction memory feeAction = Actions.feeApproval(
            feePayload[4:]
        );

        AssetRouterStorage storage $ = _getAssetRouterStorage();
        address treasury = tokenContract.getTreasury();
        uint256 fee = Math.min(
            $.tokenConfigs[token].maximumMintCommission,
            feeAction.fee
        );

        {
            bytes32 digest = tokenContract.getFeeDigest(
                feeAction.fee,
                feeAction.expiry
            );
            Assert.feeApproval(digest, recipient, userSignature);
        }
        if (amount < fee) {
            revert AssetRouter_FeeGreaterThanAmount();
        }
        if (fee > 0) {
            tokenContract.burn(recipient, fee);
            tokenContract.mint(treasury, fee);
        }

        emit AssetRouter_FeeCharged(fee, userSignature);
        return true;
    }

    function supportsInterface(
        bytes4 interfaceId
    )
        public
        view
        override(AccessControlDefaultAdminRulesUpgradeable, IERC165)
        returns (bool)
    {
        return
            type(IHandler).interfaceId == interfaceId ||
            super.supportsInterface(interfaceId);
    }

    function handlePayload(
        GMPUtils.Payload memory payload
    ) external override returns (bytes memory) {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        if (_msgSender() != address($.mailbox)) {
            revert AssetRouter_MailboxExpected();
        }
        if (payload.msgSender != Assets.BTC_STAKING_MODULE_ADDRESS) {
            revert AssetRouter_WrongSender();
        }
        // spend payload
        if ($.usedPayloads[payload.id]) {
            revert AssetRouter_PayloadAlreadyUsed();
        }
        $.usedPayloads[payload.id] = true;
        (Assets.Release memory receipt, ) = Assets.decodeRelease(
            payload.msgBody
        );
        _confirmDeposit($, payload.id, receipt.amount);

        IBaseLBTC(receipt.toToken).mint(receipt.recipient, receipt.amount);
        return abi.encode(receipt.recipient, receipt.toToken, receipt.amount);
    }

    /**
     * @dev Checks that the deposit was validated by the Bascule drawbridge.
     * @param $ LBTC storage.
     * @param depositID The unique ID of the deposit.
     * @param amount The withdrawal amount.
     */
    function _confirmDeposit(
        AssetRouterStorage storage $,
        bytes32 depositID,
        uint256 amount
    ) internal {
        IBascule bascule_ = $.bascule;
        if (address(bascule_) != address(0)) {
            bascule_.validateWithdrawal(depositID, amount);
        }
    }

    /// @dev Zero Address allowed to disable bascule check
    function _changeBascule(address newVal) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        emit AssetRouter_BasculeChanged(address($.bascule), newVal);
        $.bascule = IBascule(newVal);
    }

    function _changeOracle(address token, address newVal) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        emit AssetRouter_OracleChanged(
            address($.tokenConfigs[token].oracle),
            newVal
        );
        $.tokenConfigs[token].oracle = IOracle(newVal);
    }

    function _changeMailbox(address newVal) internal {
        if (address(newVal) == address(0)) revert AssetRouter_ZeroAddress();
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        emit AssetRouter_MailboxChanged(address($.mailbox), newVal);
        $.mailbox = IMailbox(newVal);
    }

    /// @dev allow set to zero
    function _changeToNativeCommission(
        address token,
        uint64 newValue
    ) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        TokenConfig storage tokenCfg = $.tokenConfigs[token];
        uint64 prevValue = tokenCfg.toNativeCommission;
        tokenCfg.toNativeCommission = newValue;
        emit AssetRouter_ToNativeCommissionChanged(prevValue, newValue);
    }

    /// @dev allow set to zero
    function _changeNativeToken(address newValue) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        address prevValue = $.nativeToken;
        $.nativeToken = newValue;
        bytes32 key = keccak256(abi.encode(prevValue, LChainId.get()));
        delete $.routes[key];
        emit AssetRouter_NativeTokenChanged(prevValue, newValue);
    }

    function _setRedeemFeeForToken(address token, uint256 fee) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        TokenConfig storage tc = $.tokenConfigs[token];
        emit AssetRouter_RedeemFeeChanged(token, tc.redeemFee, fee);
        tc.redeemFee = fee;
    }

    function _setRedeemForBtcMinAmountForToken(
        address token,
        uint256 minAmount
    ) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        TokenConfig storage tc = $.tokenConfigs[token];
        emit AssetRouter_RedeemForBtcMinAmountChanged(
            token,
            tc.redeemForBtcMinAmount,
            minAmount
        );
        tc.redeemForBtcMinAmount = minAmount;
    }

    function _toggleRedeemForToken(address token) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        bytes32 key = keccak256(abi.encode(token, LChainId.get()));
        Route storage btcRoute = $.routes[key].direction[$.bitcoinChainId];
        bool redeemEnabled = false;
        if (
            btcRoute.toTokens[Assets.BITCOIN_NATIVE_COIN] == RouteType.UNKNOWN
        ) {
            btcRoute.toTokens[Assets.BITCOIN_NATIVE_COIN] = RouteType.REDEEM;
            redeemEnabled = true;
        } else if (
            btcRoute.toTokens[Assets.BITCOIN_NATIVE_COIN] == RouteType.REDEEM
        ) {
            btcRoute.toTokens[Assets.BITCOIN_NATIVE_COIN] = RouteType.UNKNOWN;
        } else {
            revert AssertRouter_WrongRouteType();
        }
        emit AssetRouter_RedeemEnabled(token, redeemEnabled);
    }

    function _setRedeemForToken(address token, bool enabled) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        bytes32 key = keccak256(abi.encode(token, LChainId.get()));
        Route storage btcRoute = $.routes[key].direction[$.bitcoinChainId];
        if (enabled) {
            btcRoute.toTokens[Assets.BITCOIN_NATIVE_COIN] = RouteType.REDEEM;
        } else {
            btcRoute.toTokens[Assets.BITCOIN_NATIVE_COIN] = RouteType.UNKNOWN;
        }
        emit AssetRouter_RedeemEnabled(token, enabled);
    }
    function _setMaxMintCommission(address token, uint256 fee) internal {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        uint256 oldFee = $.tokenConfigs[token].maximumMintCommission;
        $.tokenConfigs[token].maximumMintCommission = fee;
        emit AssetRouter_MintFeeChanged(oldFee, fee);
    }

    function _getTokenConfig(
        address token
    )
        internal
        view
        returns (
            uint256 redeemFee,
            uint256 redeemForBtcMinAmount,
            bool isRedeemEnabled
        )
    {
        AssetRouterStorage storage $ = _getAssetRouterStorage();
        TokenConfig storage tc = $.tokenConfigs[token];
        bytes32 key = keccak256(abi.encode(token, LChainId.get()));
        Route storage btcRoute = $.routes[key].direction[$.bitcoinChainId];
        return (
            tc.redeemFee,
            tc.redeemForBtcMinAmount,
            btcRoute.toTokens[Assets.BITCOIN_NATIVE_COIN] == RouteType.REDEEM
        );
    }

    function toNativeCommission(
        address token
    ) external view override returns (uint64) {
        return _getAssetRouterStorage().tokenConfigs[token].toNativeCommission;
    }

    function nativeToken() external view override returns (address) {
        return _getAssetRouterStorage().nativeToken;
    }

    function maxMintCommission(
        address token
    ) external view override returns (uint256) {
        return
            _getAssetRouterStorage().tokenConfigs[token].maximumMintCommission;
    }
}

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

pragma solidity ^0.8.20;

import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;


    /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
    struct AccessControlStorage {
        mapping(bytes32 role => RoleData) _roles;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;

    function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
        assembly {
            $.slot := AccessControlStorageLocation
        }
    }

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    function __AccessControl_init() internal onlyInitializing {
    }

    function __AccessControl_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        AccessControlStorage storage $ = _getAccessControlStorage();
        bytes32 previousAdminRole = getRoleAdmin(role);
        $._roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (!hasRole(role, account)) {
            $._roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (hasRole(role, account)) {
            $._roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

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

pragma solidity ^0.8.20;

import {IAccessControlDefaultAdminRules} from "@openzeppelin/contracts/access/extensions/IAccessControlDefaultAdminRules.sol";
import {AccessControlUpgradeable} from "../AccessControlUpgradeable.sol";
import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {IERC5313} from "@openzeppelin/contracts/interfaces/IERC5313.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Extension of {AccessControl} that allows specifying special rules to manage
 * the `DEFAULT_ADMIN_ROLE` holder, which is a sensitive role with special permissions
 * over other roles that may potentially have privileged rights in the system.
 *
 * If a specific role doesn't have an admin role assigned, the holder of the
 * `DEFAULT_ADMIN_ROLE` will have the ability to grant it and revoke it.
 *
 * This contract implements the following risk mitigations on top of {AccessControl}:
 *
 * * Only one account holds the `DEFAULT_ADMIN_ROLE` since deployment until it's potentially renounced.
 * * Enforces a 2-step process to transfer the `DEFAULT_ADMIN_ROLE` to another account.
 * * Enforces a configurable delay between the two steps, with the ability to cancel before the transfer is accepted.
 * * The delay can be changed by scheduling, see {changeDefaultAdminDelay}.
 * * It is not possible to use another role to manage the `DEFAULT_ADMIN_ROLE`.
 *
 * Example usage:
 *
 * ```solidity
 * contract MyToken is AccessControlDefaultAdminRules {
 *   constructor() AccessControlDefaultAdminRules(
 *     3 days,
 *     msg.sender // Explicit initial `DEFAULT_ADMIN_ROLE` holder
 *    ) {}
 * }
 * ```
 */
abstract contract AccessControlDefaultAdminRulesUpgradeable is Initializable, IAccessControlDefaultAdminRules, IERC5313, AccessControlUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.AccessControlDefaultAdminRules
    struct AccessControlDefaultAdminRulesStorage {
        // pending admin pair read/written together frequently
        address _pendingDefaultAdmin;
        uint48 _pendingDefaultAdminSchedule; // 0 == unset

        uint48 _currentDelay;
        address _currentDefaultAdmin;

        // pending delay pair read/written together frequently
        uint48 _pendingDelay;
        uint48 _pendingDelaySchedule; // 0 == unset
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControlDefaultAdminRules")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant AccessControlDefaultAdminRulesStorageLocation = 0xeef3dac4538c82c8ace4063ab0acd2d15cdb5883aa1dff7c2673abb3d8698400;

    function _getAccessControlDefaultAdminRulesStorage() private pure returns (AccessControlDefaultAdminRulesStorage storage $) {
        assembly {
            $.slot := AccessControlDefaultAdminRulesStorageLocation
        }
    }

    /**
     * @dev Sets the initial values for {defaultAdminDelay} and {defaultAdmin} address.
     */
    function __AccessControlDefaultAdminRules_init(uint48 initialDelay, address initialDefaultAdmin) internal onlyInitializing {
        __AccessControlDefaultAdminRules_init_unchained(initialDelay, initialDefaultAdmin);
    }

    function __AccessControlDefaultAdminRules_init_unchained(uint48 initialDelay, address initialDefaultAdmin) internal onlyInitializing {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        if (initialDefaultAdmin == address(0)) {
            revert AccessControlInvalidDefaultAdmin(address(0));
        }
        $._currentDelay = initialDelay;
        _grantRole(DEFAULT_ADMIN_ROLE, initialDefaultAdmin);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControlDefaultAdminRules).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC5313-owner}.
     */
    function owner() public view virtual returns (address) {
        return defaultAdmin();
    }

    ///
    /// Override AccessControl role management
    ///

    /**
     * @dev See {AccessControl-grantRole}. Reverts for `DEFAULT_ADMIN_ROLE`.
     */
    function grantRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
        if (role == DEFAULT_ADMIN_ROLE) {
            revert AccessControlEnforcedDefaultAdminRules();
        }
        super.grantRole(role, account);
    }

    /**
     * @dev See {AccessControl-revokeRole}. Reverts for `DEFAULT_ADMIN_ROLE`.
     */
    function revokeRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
        if (role == DEFAULT_ADMIN_ROLE) {
            revert AccessControlEnforcedDefaultAdminRules();
        }
        super.revokeRole(role, account);
    }

    /**
     * @dev See {AccessControl-renounceRole}.
     *
     * For the `DEFAULT_ADMIN_ROLE`, it only allows renouncing in two steps by first calling
     * {beginDefaultAdminTransfer} to the `address(0)`, so it's required that the {pendingDefaultAdmin} schedule
     * has also passed when calling this function.
     *
     * After its execution, it will not be possible to call `onlyRole(DEFAULT_ADMIN_ROLE)` functions.
     *
     * NOTE: Renouncing `DEFAULT_ADMIN_ROLE` will leave the contract without a {defaultAdmin},
     * thereby disabling any functionality that is only available for it, and the possibility of reassigning a
     * non-administrated role.
     */
    function renounceRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        if (role == DEFAULT_ADMIN_ROLE && account == defaultAdmin()) {
            (address newDefaultAdmin, uint48 schedule) = pendingDefaultAdmin();
            if (newDefaultAdmin != address(0) || !_isScheduleSet(schedule) || !_hasSchedulePassed(schedule)) {
                revert AccessControlEnforcedDefaultAdminDelay(schedule);
            }
            delete $._pendingDefaultAdminSchedule;
        }
        super.renounceRole(role, account);
    }

    /**
     * @dev See {AccessControl-_grantRole}.
     *
     * For `DEFAULT_ADMIN_ROLE`, it only allows granting if there isn't already a {defaultAdmin} or if the
     * role has been previously renounced.
     *
     * NOTE: Exposing this function through another mechanism may make the `DEFAULT_ADMIN_ROLE`
     * assignable again. Make sure to guarantee this is the expected behavior in your implementation.
     */
    function _grantRole(bytes32 role, address account) internal virtual override returns (bool) {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        if (role == DEFAULT_ADMIN_ROLE) {
            if (defaultAdmin() != address(0)) {
                revert AccessControlEnforcedDefaultAdminRules();
            }
            $._currentDefaultAdmin = account;
        }
        return super._grantRole(role, account);
    }

    /**
     * @dev See {AccessControl-_revokeRole}.
     */
    function _revokeRole(bytes32 role, address account) internal virtual override returns (bool) {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        if (role == DEFAULT_ADMIN_ROLE && account == defaultAdmin()) {
            delete $._currentDefaultAdmin;
        }
        return super._revokeRole(role, account);
    }

    /**
     * @dev See {AccessControl-_setRoleAdmin}. Reverts for `DEFAULT_ADMIN_ROLE`.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual override {
        if (role == DEFAULT_ADMIN_ROLE) {
            revert AccessControlEnforcedDefaultAdminRules();
        }
        super._setRoleAdmin(role, adminRole);
    }

    ///
    /// AccessControlDefaultAdminRules accessors
    ///

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function defaultAdmin() public view virtual returns (address) {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        return $._currentDefaultAdmin;
    }

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function pendingDefaultAdmin() public view virtual returns (address newAdmin, uint48 schedule) {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        return ($._pendingDefaultAdmin, $._pendingDefaultAdminSchedule);
    }

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function defaultAdminDelay() public view virtual returns (uint48) {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        uint48 schedule = $._pendingDelaySchedule;
        return (_isScheduleSet(schedule) && _hasSchedulePassed(schedule)) ? $._pendingDelay : $._currentDelay;
    }

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function pendingDefaultAdminDelay() public view virtual returns (uint48 newDelay, uint48 schedule) {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        schedule = $._pendingDelaySchedule;
        return (_isScheduleSet(schedule) && !_hasSchedulePassed(schedule)) ? ($._pendingDelay, schedule) : (0, 0);
    }

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function defaultAdminDelayIncreaseWait() public view virtual returns (uint48) {
        return 5 days;
    }

    ///
    /// AccessControlDefaultAdminRules public and internal setters for defaultAdmin/pendingDefaultAdmin
    ///

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function beginDefaultAdminTransfer(address newAdmin) public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
        _beginDefaultAdminTransfer(newAdmin);
    }

    /**
     * @dev See {beginDefaultAdminTransfer}.
     *
     * Internal function without access restriction.
     */
    function _beginDefaultAdminTransfer(address newAdmin) internal virtual {
        uint48 newSchedule = SafeCast.toUint48(block.timestamp) + defaultAdminDelay();
        _setPendingDefaultAdmin(newAdmin, newSchedule);
        emit DefaultAdminTransferScheduled(newAdmin, newSchedule);
    }

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function cancelDefaultAdminTransfer() public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
        _cancelDefaultAdminTransfer();
    }

    /**
     * @dev See {cancelDefaultAdminTransfer}.
     *
     * Internal function without access restriction.
     */
    function _cancelDefaultAdminTransfer() internal virtual {
        _setPendingDefaultAdmin(address(0), 0);
    }

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function acceptDefaultAdminTransfer() public virtual {
        (address newDefaultAdmin, ) = pendingDefaultAdmin();
        if (_msgSender() != newDefaultAdmin) {
            // Enforce newDefaultAdmin explicit acceptance.
            revert AccessControlInvalidDefaultAdmin(_msgSender());
        }
        _acceptDefaultAdminTransfer();
    }

    /**
     * @dev See {acceptDefaultAdminTransfer}.
     *
     * Internal function without access restriction.
     */
    function _acceptDefaultAdminTransfer() internal virtual {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        (address newAdmin, uint48 schedule) = pendingDefaultAdmin();
        if (!_isScheduleSet(schedule) || !_hasSchedulePassed(schedule)) {
            revert AccessControlEnforcedDefaultAdminDelay(schedule);
        }
        _revokeRole(DEFAULT_ADMIN_ROLE, defaultAdmin());
        _grantRole(DEFAULT_ADMIN_ROLE, newAdmin);
        delete $._pendingDefaultAdmin;
        delete $._pendingDefaultAdminSchedule;
    }

    ///
    /// AccessControlDefaultAdminRules public and internal setters for defaultAdminDelay/pendingDefaultAdminDelay
    ///

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function changeDefaultAdminDelay(uint48 newDelay) public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
        _changeDefaultAdminDelay(newDelay);
    }

    /**
     * @dev See {changeDefaultAdminDelay}.
     *
     * Internal function without access restriction.
     */
    function _changeDefaultAdminDelay(uint48 newDelay) internal virtual {
        uint48 newSchedule = SafeCast.toUint48(block.timestamp) + _delayChangeWait(newDelay);
        _setPendingDelay(newDelay, newSchedule);
        emit DefaultAdminDelayChangeScheduled(newDelay, newSchedule);
    }

    /**
     * @inheritdoc IAccessControlDefaultAdminRules
     */
    function rollbackDefaultAdminDelay() public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
        _rollbackDefaultAdminDelay();
    }

    /**
     * @dev See {rollbackDefaultAdminDelay}.
     *
     * Internal function without access restriction.
     */
    function _rollbackDefaultAdminDelay() internal virtual {
        _setPendingDelay(0, 0);
    }

    /**
     * @dev Returns the amount of seconds to wait after the `newDelay` will
     * become the new {defaultAdminDelay}.
     *
     * The value returned guarantees that if the delay is reduced, it will go into effect
     * after a wait that honors the previously set delay.
     *
     * See {defaultAdminDelayIncreaseWait}.
     */
    function _delayChangeWait(uint48 newDelay) internal view virtual returns (uint48) {
        uint48 currentDelay = defaultAdminDelay();

        // When increasing the delay, we schedule the delay change to occur after a period of "new delay" has passed, up
        // to a maximum given by defaultAdminDelayIncreaseWait, by default 5 days. For example, if increasing from 1 day
        // to 3 days, the new delay will come into effect after 3 days. If increasing from 1 day to 10 days, the new
        // delay will come into effect after 5 days. The 5 day wait period is intended to be able to fix an error like
        // using milliseconds instead of seconds.
        //
        // When decreasing the delay, we wait the difference between "current delay" and "new delay". This guarantees
        // that an admin transfer cannot be made faster than "current delay" at the time the delay change is scheduled.
        // For example, if decreasing from 10 days to 3 days, the new delay will come into effect after 7 days.
        return
            newDelay > currentDelay
                ? uint48(Math.min(newDelay, defaultAdminDelayIncreaseWait())) // no need to safecast, both inputs are uint48
                : currentDelay - newDelay;
    }

    ///
    /// Private setters
    ///

    /**
     * @dev Setter of the tuple for pending admin and its schedule.
     *
     * May emit a DefaultAdminTransferCanceled event.
     */
    function _setPendingDefaultAdmin(address newAdmin, uint48 newSchedule) private {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        (, uint48 oldSchedule) = pendingDefaultAdmin();

        $._pendingDefaultAdmin = newAdmin;
        $._pendingDefaultAdminSchedule = newSchedule;

        // An `oldSchedule` from `pendingDefaultAdmin()` is only set if it hasn't been accepted.
        if (_isScheduleSet(oldSchedule)) {
            // Emit for implicit cancellations when another default admin was scheduled.
            emit DefaultAdminTransferCanceled();
        }
    }

    /**
     * @dev Setter of the tuple for pending delay and its schedule.
     *
     * May emit a DefaultAdminDelayChangeCanceled event.
     */
    function _setPendingDelay(uint48 newDelay, uint48 newSchedule) private {
        AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
        uint48 oldSchedule = $._pendingDelaySchedule;

        if (_isScheduleSet(oldSchedule)) {
            if (_hasSchedulePassed(oldSchedule)) {
                // Materialize a virtual delay
                $._currentDelay = $._pendingDelay;
            } else {
                // Emit for implicit cancellations when another delay was scheduled.
                emit DefaultAdminDelayChangeCanceled();
            }
        }

        $._pendingDelay = newDelay;
        $._pendingDelaySchedule = newSchedule;
    }

    ///
    /// Private helpers
    ///

    /**
     * @dev Defines if an `schedule` is considered set. For consistency purposes.
     */
    function _isScheduleSet(uint48 schedule) private pure returns (bool) {
        return schedule != 0;
    }

    /**
     * @dev Defines if an `schedule` is considered passed. For consistency purposes.
     */
    function _hasSchedulePassed(uint48 schedule) private view returns (bool) {
        return schedule < block.timestamp;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

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

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

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

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165Upgradeable is Initializable, IERC165 {
    function __ERC165_init() internal onlyInitializing {
    }

    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

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

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

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
    struct ReentrancyGuardStorage {
        uint256 _status;
    }

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

    function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
        assembly {
            $.slot := ReentrancyGuardStorageLocation
        }
    }

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

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        $._status = NOT_ENTERED;
    }

    /**
     * @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 {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if ($._status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        $._status = ENTERED;
    }

    function _nonReentrantAfter() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        $._status = NOT_ENTERED;
    }

    /**
     * @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) {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        return $._status == ENTERED;
    }
}

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

pragma solidity ^0.8.20;

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

/**
 * @dev External interface of AccessControlDefaultAdminRules declared to support ERC165 detection.
 */
interface IAccessControlDefaultAdminRules is IAccessControl {
    /**
     * @dev The new default admin is not a valid default admin.
     */
    error AccessControlInvalidDefaultAdmin(address defaultAdmin);

    /**
     * @dev At least one of the following rules was violated:
     *
     * - The `DEFAULT_ADMIN_ROLE` must only be managed by itself.
     * - The `DEFAULT_ADMIN_ROLE` must only be held by one account at the time.
     * - Any `DEFAULT_ADMIN_ROLE` transfer must be in two delayed steps.
     */
    error AccessControlEnforcedDefaultAdminRules();

    /**
     * @dev The delay for transferring the default admin delay is enforced and
     * the operation must wait until `schedule`.
     *
     * NOTE: `schedule` can be 0 indicating there's no transfer scheduled.
     */
    error AccessControlEnforcedDefaultAdminDelay(uint48 schedule);

    /**
     * @dev Emitted when a {defaultAdmin} transfer is started, setting `newAdmin` as the next
     * address to become the {defaultAdmin} by calling {acceptDefaultAdminTransfer} only after `acceptSchedule`
     * passes.
     */
    event DefaultAdminTransferScheduled(address indexed newAdmin, uint48 acceptSchedule);

    /**
     * @dev Emitted when a {pendingDefaultAdmin} is reset if it was never accepted, regardless of its schedule.
     */
    event DefaultAdminTransferCanceled();

    /**
     * @dev Emitted when a {defaultAdminDelay} change is started, setting `newDelay` as the next
     * delay to be applied between default admin transfer after `effectSchedule` has passed.
     */
    event DefaultAdminDelayChangeScheduled(uint48 newDelay, uint48 effectSchedule);

    /**
     * @dev Emitted when a {pendingDefaultAdminDelay} is reset if its schedule didn't pass.
     */
    event DefaultAdminDelayChangeCanceled();

    /**
     * @dev Returns the address of the current `DEFAULT_ADMIN_ROLE` holder.
     */
    function defaultAdmin() external view returns (address);

    /**
     * @dev Returns a tuple of a `newAdmin` and an accept schedule.
     *
     * After the `schedule` passes, the `newAdmin` will be able to accept the {defaultAdmin} role
     * by calling {acceptDefaultAdminTransfer}, completing the role transfer.
     *
     * A zero value only in `acceptSchedule` indicates no pending admin transfer.
     *
     * NOTE: A zero address `newAdmin` means that {defaultAdmin} is being renounced.
     */
    function pendingDefaultAdmin() external view returns (address newAdmin, uint48 acceptSchedule);

    /**
     * @dev Returns the delay required to schedule the acceptance of a {defaultAdmin} transfer started.
     *
     * This delay will be added to the current timestamp when calling {beginDefaultAdminTransfer} to set
     * the acceptance schedule.
     *
     * NOTE: If a delay change has been scheduled, it will take effect as soon as the schedule passes, making this
     * function returns the new delay. See {changeDefaultAdminDelay}.
     */
    function defaultAdminDelay() external view returns (uint48);

    /**
     * @dev Returns a tuple of `newDelay` and an effect schedule.
     *
     * After the `schedule` passes, the `newDelay` will get into effect immediately for every
     * new {defaultAdmin} transfer started with {beginDefaultAdminTransfer}.
     *
     * A zero value only in `effectSchedule` indicates no pending delay change.
     *
     * NOTE: A zero value only for `newDelay` means that the next {defaultAdminDelay}
     * will be zero after the effect schedule.
     */
    function pendingDefaultAdminDelay() external view returns (uint48 newDelay, uint48 effectSchedule);

    /**
     * @dev Starts a {defaultAdmin} transfer by setting a {pendingDefaultAdmin} scheduled for acceptance
     * after the current timestamp plus a {defaultAdminDelay}.
     *
     * Requirements:
     *
     * - Only can be called by the current {defaultAdmin}.
     *
     * Emits a DefaultAdminRoleChangeStarted event.
     */
    function beginDefaultAdminTransfer(address newAdmin) external;

    /**
     * @dev Cancels a {defaultAdmin} transfer previously started with {beginDefaultAdminTransfer}.
     *
     * A {pendingDefaultAdmin} not yet accepted can also be cancelled with this function.
     *
     * Requirements:
     *
     * - Only can be called by the current {defaultAdmin}.
     *
     * May emit a DefaultAdminTransferCanceled event.
     */
    function cancelDefaultAdminTransfer() external;

    /**
     * @dev Completes a {defaultAdmin} transfer previously started with {beginDefaultAdminTransfer}.
     *
     * After calling the function:
     *
     * - `DEFAULT_ADMIN_ROLE` should be granted to the caller.
     * - `DEFAULT_ADMIN_ROLE` should be revoked from the previous holder.
     * - {pendingDefaultAdmin} should be reset to zero values.
     *
     * Requirements:
     *
     * - Only can be called by the {pendingDefaultAdmin}'s `newAdmin`.
     * - The {pendingDefaultAdmin}'s `acceptSchedule` should've passed.
     */
    function acceptDefaultAdminTransfer() external;

    /**
     * @dev Initiates a {defaultAdminDelay} update by setting a {pendingDefaultAdminDelay} scheduled for getting
     * into effect after the current timestamp plus a {defaultAdminDelay}.
     *
     * This function guarantees that any call to {beginDefaultAdminTransfer} done between the timestamp this
     * method is called and the {pendingDefaultAdminDelay} effect schedule will use the current {defaultAdminDelay}
     * set before calling.
     *
     * The {pendingDefaultAdminDelay}'s effect schedule is defined in a way that waiting until the schedule and then
     * calling {beginDefaultAdminTransfer} with the new delay will take at least the same as another {defaultAdmin}
     * complete transfer (including acceptance).
     *
     * The schedule is designed for two scenarios:
     *
     * - When the delay is changed for a larger one the schedule is `block.timestamp + newDelay` capped by
     * {defaultAdminDelayIncreaseWait}.
     * - When the delay is changed for a shorter one, the schedule is `block.timestamp + (current delay - new delay)`.
     *
     * A {pendingDefaultAdminDelay} that never got into effect will be canceled in favor of a new scheduled change.
     *
     * Requirements:
     *
     * - Only can be called by the current {defaultAdmin}.
     *
     * Emits a DefaultAdminDelayChangeScheduled event and may emit a DefaultAdminDelayChangeCanceled event.
     */
    function changeDefaultAdminDelay(uint48 newDelay) external;

    /**
     * @dev Cancels a scheduled {defaultAdminDelay} change.
     *
     * Requirements:
     *
     * - Only can be called by the current {defaultAdmin}.
     *
     * May emit a DefaultAdminDelayChangeCanceled event.
     */
    function rollbackDefaultAdminDelay() external;

    /**
     * @dev Maximum time in seconds for an increase to {defaultAdminDelay} (that is scheduled using {changeDefaultAdminDelay})
     * to take effect. Default to 5 days.
     *
     * When the {defaultAdminDelay} is scheduled to be increased, it goes into effect after the new delay has passed with
     * the purpose of giving enough time for reverting any accidental change (i.e. using milliseconds instead of seconds)
     * that may lock the contract. However, to avoid excessive schedules, the wait is capped by this function and it can
     * be overrode for a custom {defaultAdminDelay} increase scheduling.
     *
     * IMPORTANT: Make sure to add a reasonable amount of time while overriding this value, otherwise,
     * there's a risk of setting a high new delay that goes into effect almost immediately without the
     * possibility of human intervention in the case of an input error (eg. set milliseconds instead of seconds).
     */
    function defaultAdminDelayIncreaseWait() external view returns (uint48);
}

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

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     */
    function renounceRole(bytes32 role, address callerConfirmation) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1271.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC1271 standard signature validation method for
 * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
 */
interface IERC1271 {
    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param hash      Hash of the data to be signed
     * @param signature Signature byte array associated with _data
     */
    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5313.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface for the Light Contract Ownership Standard.
 *
 * A standardized minimal interface required to identify an account that controls a contract
 */
interface IERC5313 {
    /**
     * @dev Gets the address of the owner.
     */
    function owner() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (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, RecoverError, bytes32) {
        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.
            /// @solidity memory-safe-assembly
            assembly {
                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[EIP-2098 short signatures]
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) {
        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, RecoverError, bytes32) {
        // 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 v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * 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[EIP 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 v5.0.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Muldiv operation overflow.
     */
    error MathOverflowedMulDiv();

    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 overflow flag.
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        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 division by zero flag.
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

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

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

        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
     * denominator == 0.
     * @dev 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 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + 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 2^256. Also prevents denominator == 0.
            if (denominator <= prod1) {
                revert MathOverflowedMulDiv();
            }

            ///////////////////////////////////////////////
            // 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 2^256 / 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 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            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 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // 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 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, 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;
        }
    }

    /**
     * @notice 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) {
        uint256 result = mulDiv(x, y, denominator);
        if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
     * towards zero.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice 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 + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
        }
    }

    /**
     * @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;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 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 + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @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 + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @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;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 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 + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

    /**
     * @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 v5.0.0) (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 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);
    }
}

// SPDX-License-Identifier: MIT
// Compatible with OpenZeppelin Contracts ^5.0.0
pragma solidity 0.8.24;

/// Interface of the Bascule contract as used by on-chain contracts.
/// @custom:security-contact [email protected]
interface IBascule {
    /**
     * Event emitted when a withdrawal is validated.
     * @param withdrawalAmount Amount of the withdrawal.
     * @param depositID Unique identifier for a deposit that took place on another chain and was withdrawn on this chain.
     */
    event WithdrawalValidated(bytes32 depositID, uint256 withdrawalAmount);

    /**
     * Error on attempt to withdraw an already withdrawn deposit.
     * @param depositID Unique identifier for deposit that failed validation.
     * @param withdrawalAmount Amount of the withdrawal.
     */
    error AlreadyWithdrawn(bytes32 depositID, uint256 withdrawalAmount);

    /**
     * Error when a withdrawal fails validation.
     * This means the corresponding deposit is not in the map.
     * @param depositID Unique identifier for deposit that failed validation.
     * @param withdrawalAmount Amount of the withdrawal.
     */
    error WithdrawalFailedValidation(
        bytes32 depositID,
        uint256 withdrawalAmount
    );

    /**
     * Validate a withdrawal (before executing it) if the amount is above
     * threshold.
     *
     * This function checks if our accounting has recorded a deposit that
     * corresponds to this withdrawal request. A deposit can only be withdrawn
     * once.
     *
     * @param depositID Unique identifier of the deposit on another chain.
     * @param withdrawalAmount Amount of the withdrawal.
     *
     * Emits {WithdrawalValidated}.
     */
    function validateWithdrawal(
        bytes32 depositID,
        uint256 withdrawalAmount
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {GMPUtils} from "./libs/GMPUtils.sol";
import {MessagePath} from "./libs/MessagePath.sol";

interface IHandler is IERC165 {
    ///
    /// @return Could return some result, that will be emitted in `MessageHandled` event
    function handlePayload(
        GMPUtils.Payload memory
    ) external returns (bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

interface IMailbox {
    error Mailbox_ZeroChainId();
    error Mailbox_ZeroConsortium();
    error Mailbox_ZeroMailbox();
    error Mailbox_ZeroRecipient();
    error Mailbox_ZeroAmount();
    error Mailbox_MessagePathEnabled(bytes32 id);
    error Mailbox_MessagePathDisabled(bytes32 id);
    error Mailbox_UnexpectedDestinationCaller(address expected, address actual);
    error Mailbox_HandlerNotImplemented();
    error Mailbox_PayloadOversize(uint32 max, uint256 actual);
    error Mailbox_NotEnoughFee(uint256 expected, uint256 actual);
    error Mailbox_CallFailed();

    event MessagePathEnabled(
        bytes32 indexed destinationChain,
        bytes32 indexed inboundMessagePath,
        bytes32 indexed outboundMessagePath,
        bytes32 destinationMailbox
    );

    event MessagePathDisabled(
        bytes32 indexed destinationChain,
        bytes32 indexed inboundMessagePath,
        bytes32 indexed outboundMessagePath,
        bytes32 destinationMailbox
    );

    event MessageSent(
        bytes32 indexed destinationLChainId,
        address indexed msgSender,
        bytes32 indexed recipient,
        bytes payload
    );

    /// Message payment receipt
    event MessagePaid(
        bytes32 indexed payloadHash,
        address indexed msgSender,
        uint256 payloadSize,
        uint256 value
    );

    event MessageDelivered(
        bytes32 indexed payloadHash,
        address indexed caller,
        uint256 indexed nonce,
        bytes32 msgSender,
        bytes payload
    );

    event MessageHandled(
        bytes32 indexed payloadHash,
        address indexed destinationCaller,
        bytes executionResult
    );

    event MessageHandleError(
        bytes32 indexed payloadHash,
        address indexed destinationCaller,
        string reason,
        bytes customError
    );

    event SenderConfigUpdated(
        address indexed sender,
        uint64 maxPayloadSize,
        bool feeDisabled
    );

    event DefaultPayloadSizeSet(uint64 maxPayloadSize);

    event FeePerByteSet(uint256 fee);

    event FeeWithdrawn(address indexed treasury, uint256 amount);

    function getFee(
        address sender,
        bytes calldata body
    ) external view returns (uint256);

    function getInboundMessagePath(
        bytes32 pathId
    ) external view returns (bytes32);

    function send(
        bytes32 destinationChain,
        bytes32 recipient,
        bytes32 destinationCaller,
        bytes calldata body
    ) external payable returns (uint256, bytes32);

    function deliverAndHandle(
        bytes calldata rawPayload,
        bytes calldata proof
    ) external returns (bytes32, bool, bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {LChainId} from "../../libs/LChainId.sol";

library GMPUtils {
    // bytes4(keccak256("MessageV1(bytes32,uint256,bytes32,bytes32,bytes32,bytes)"))
    bytes4 public constant GMP_V1_SELECTOR = 0xe288fb4a;
    uint256 internal constant MIN_GMP_LENGTH = 32 * 6 + 4; // This length includes selector

    error GMP_ZeroChainId();
    error GMP_ZeroSender();
    error GMP_ZeroRecipient();
    error GMP_WrongPayloadLength();
    error GMP_InvalidAddess();
    error GMP_InvalidAction(bytes4 expectedVal, bytes4 actualVal);

    struct Payload {
        bytes32 id;
        bytes32 msgPath;
        uint256 msgNonce;
        bytes32 msgSender;
        address msgRecipient; // it's okay to use address instead bytes32, because delivered to EVM
        address msgDestinationCaller;
        bytes msgBody;
    }

    function encodePayload(
        bytes32 msgPath,
        uint256 msgNonce,
        bytes32 msgSender,
        bytes32 msgRecipient,
        bytes32 msgDestinationCaller,
        bytes memory msgBody
    ) internal pure returns (bytes memory) {
        return
            abi.encodeWithSelector(
                GMP_V1_SELECTOR,
                msgPath,
                msgNonce,
                msgSender,
                msgRecipient,
                msgDestinationCaller,
                msgBody
            );
    }

    function decodeAndValidatePayload(
        bytes calldata rawPayload
    ) internal pure returns (Payload memory payload) {
        validatePayload(rawPayload);

        (
            payload.msgPath,
            payload.msgNonce,
            payload.msgSender,
            payload.msgRecipient,
            payload.msgDestinationCaller,
            payload.msgBody
        ) = abi.decode(
            rawPayload[4:],
            (bytes32, uint256, bytes32, address, address, bytes)
        );

        // no need to verify msg path, because mailbox verifies it to be enabled
        if (payload.msgSender == bytes32(0)) {
            revert GMP_ZeroSender();
        }
        if (payload.msgRecipient == address(0)) {
            revert GMP_ZeroRecipient();
        }

        payload.id = hash(rawPayload);

        return payload;
    }

    // @notice Returns message's selector
    function selector(bytes memory payload) internal pure returns (bytes4) {
        return bytes4(payload);
    }

    function hash(bytes memory rawPayload) internal pure returns (bytes32) {
        return sha256(rawPayload);
    }

    /**
     * @notice converts address to bytes32 (alignment preserving cast.)
     * @param addr the address to convert to bytes32
     */
    function addressToBytes32(address addr) internal pure returns (bytes32) {
        return bytes32(uint256(uint160(addr)));
    }

    /**
     * @notice converts bytes32 to address (alignment preserving cast.)
     * @dev This function explicitly checks if the first 12 bytes are zeros to ensure 1 to 1 mapping
     * @param _buf the bytes32 to convert to address
     */
    function bytes32ToAddress(bytes32 _buf) internal pure returns (address) {
        if (uint256(_buf) >> 160 != 0) {
            revert GMP_InvalidAddess();
        }
        return address(uint160(uint256(_buf)));
    }

    function validatePayload(bytes calldata rawPayload) internal pure {
        if (bytes4(rawPayload) != GMP_V1_SELECTOR) {
            revert GMP_InvalidAction(GMP_V1_SELECTOR, bytes4(rawPayload));
        }
        if (rawPayload.length < MIN_GMP_LENGTH) {
            revert GMP_WrongPayloadLength();
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

library MessagePath {
    struct Details {
        bytes32 sourceContract;
        bytes32 sourceChain;
        bytes32 destinationChain;
    }

    function id(Details memory self) internal pure returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    self.sourceContract,
                    self.sourceChain,
                    self.destinationChain
                )
            );
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

interface IAssetOperation {
    error AssetOperation_DepositNotAllowed();
    error NotStakingToken();
    error AssetOperation_RedeemNotAllowed();
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {IBascule} from "../../bascule/interfaces/IBascule.sol";
import {IMailbox} from "../../gmp/IMailbox.sol";
import {IOracle} from "../interfaces/IOracle.sol";

interface IAssetRouter {
    // Describes types of possible routes. UNKNOWN means no route or disabled route
    enum RouteType {
        UNKNOWN, // unknown must be '0'
        DEPOSIT,
        REDEEM
    }

    error AssetRouter_ZeroMailbox();
    error AssetRouter_MailboxExpected();
    error AssetRouter_PayloadAlreadyUsed();
    error AssetRouter_ZeroAddress();
    error AssetRouter_Unauthorized();
    error AssetRouter_WrongOperation();
    error AssetRouter_WrongSender();
    error AssetRouter_WrongNativeToken();
    error AssetRouter_MintProcessingError();
    error AssetRouter_FeeGreaterThanAmount();
    error AssertRouter_UnauthorizedAccount();
    error AssertRouter_WrongRedeemDestinationChain();
    error AssertRouter_WrongRouteType();
    error AssertRouter_WrongToken();

    event AssetRouter_FeeCharged(uint256 indexed fee, bytes userSignature);
    event AssetRouter_RedeemFeeChanged(
        address indexed token,
        uint256 oldFee,
        uint256 newFee
    );
    event AssetRouter_RedeemForBtcMinAmountChanged(
        address indexed token,
        uint256 oldMinAmount,
        uint256 newMinAmount
    );
    event AssetRouter_RedeemEnabled(address indexed token, bool enabled);

    event AssetRouter_RouteSet(
        bytes32 indexed fromToken,
        bytes32 indexed fromChainId,
        bytes32 indexed toToken,
        bytes32 toChainId,
        RouteType routeType
    );

    event AssetRouter_RouteRemoved(
        bytes32 indexed fromToken,
        bytes32 indexed fromChainId,
        bytes32 indexed toToken,
        bytes32 toChainId
    );
    event AssetRouter_BasculeChanged(
        address indexed prevVal,
        address indexed newVal
    );
    event AssetRouter_OracleChanged(
        address indexed prevVal,
        address indexed newVal
    );
    event AssetRouter_MailboxChanged(
        address indexed prevVal,
        address indexed newVal
    );
    event AssetRouter_MintFeeChanged(
        uint256 indexed oldFee,
        uint256 indexed newFee
    );
    event AssetRouter_ToNativeCommissionChanged(
        uint256 indexed oldCommission,
        uint256 indexed newCommission
    );
    event AssetRouter_NativeTokenChanged(
        address indexed oldAddress,
        address indexed newAddress
    );
    event AssetRouter_BatchMintError(
        bytes32 indexed payloadHash,
        string reason,
        bytes customError
    );
    event AssetRouter_DustFeeRateChanged(
        uint256 indexed oldRate,
        uint256 indexed newRate
    );

    function getRouteType(
        bytes32 fromToken,
        bytes32 fromChainId,
        bytes32 toChainId,
        bytes32 toToken
    ) external view returns (RouteType);

    function maxMintCommission(address token) external view returns (uint256);
    function ratio(address token) external view returns (uint256);
    function getRate(address token) external view returns (uint256);
    function bitcoinChainId() external view returns (bytes32);
    function bascule() external view returns (IBascule);
    function oracle(address token) external view returns (IOracle);
    function mailbox() external view returns (IMailbox);
    function toNativeCommission(address token) external view returns (uint64);
    function nativeToken() external view returns (address);
    function tokenConfig(
        address token
    )
        external
        view
        returns (
            uint256 redeemFee,
            uint256 redeemForBtcMinAmount,
            bool isRedeemEnabled
        );

    function deposit(
        bytes32 tolChainId,
        bytes32 toToken,
        bytes32 recipient,
        uint256 amount
    ) external;

    function deposit(
        address fromAddress,
        address toToken,
        uint256 amount
    ) external;

    function redeemForBtc(
        address fromAddress,
        address fromToken,
        bytes calldata recipient,
        uint256 amount
    ) external;

    function redeem(
        address fromAddress,
        bytes32 tolChainId,
        address fromToken,
        bytes32 toToken,
        bytes32 recipient,
        uint256 amount
    ) external;

    function redeem(
        address fromAddress,
        address fromToken,
        uint256 amount
    ) external;

    function mint(
        bytes calldata rawPayload,
        bytes calldata proof
    ) external returns (address);

    function mintWithFee(
        bytes calldata mintPayload,
        bytes calldata proof,
        bytes calldata feePayload,
        bytes calldata userSignature
    ) external;

    function batchMint(
        bytes[] calldata payload,
        bytes[] calldata proof
    ) external;

    function batchMintWithFee(
        bytes[] calldata mintPayload,
        bytes[] calldata proof,
        bytes[] calldata feePayload,
        bytes[] calldata userSignature
    ) external;

    function calcUnstakeRequestAmount(
        address token,
        bytes calldata scriptPubkey,
        uint256 amount
    ) external view returns (uint256 amountAfterFee, bool isAboveDust);

    function changeRedeemFee(uint256 fee) external;

    function changeRedeemForBtcMinAmount(uint256 minAmount) external;

    function toggleRedeem() external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

interface IBaseLBTC {
    error RedeemForBtcDisabled();
    error PayloadAlreadyUsed();
    error InvalidMintAmount();
    error AssetRouterNotSet();

    event RedeemRequest(
        address indexed from,
        uint256 indexed nonce,
        uint256 amount,
        uint256 fee,
        bytes payload
    );
    event RedeemsForBtcEnabled(bool);
    event NameAndSymbolChanged(string name, string symbol);
    event ConsortiumChanged(address indexed prevVal, address indexed newVal);
    event TreasuryAddressChanged(
        address indexed prevValue,
        address indexed newValue
    );
    event BurnCommissionChanged(
        uint64 indexed prevValue,
        uint64 indexed newValue
    );
    event DustFeeRateChanged(uint256 indexed oldRate, uint256 indexed newRate);
    event BasculeChanged(address indexed prevVal, address indexed newVal);
    event FeeCharged(uint256 indexed fee, bytes userSignature);
    event FeeChanged(uint256 indexed oldFee, uint256 indexed newFee);
    event RedeemFeeChanged(uint256 indexed oldFee, uint256 indexed newFee);

    event MintProofConsumed(
        address indexed recipient,
        bytes32 indexed payloadHash,
        bytes payload
    );

    event BatchMintSkipped(bytes32 indexed payloadHash, bytes payload);
    event AssetRouterChanged(address indexed newVal, address indexed prevVal);

    function burn(uint256 amount) external;
    function burn(address from, uint256 amount) external;
    function mint(address to, uint256 amount) external;
    function getTreasury() external view returns (address);
    function getAssetRouter() external view returns (address);
    function isNative() external view returns (bool);
    function getRedeemFee() external view returns (uint256);
    function getFeeDigest(
        uint256 fee,
        uint256 expiry
    ) external view returns (bytes32);
    function isRedeemsEnabled() external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

interface IOracle {
    event Oracle_RatioChanged(
        uint256 prevVal,
        uint256 newVal,
        uint256 switchTime
    );

    function ratio() external view returns (uint256);
    function getRate() external view returns (uint256);
    function token() external view returns (address);
    function denomHash() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {EIP1271SignatureUtils} from "../../libs/EIP1271SignatureUtils.sol";

/// @dev collection of assertions used in ERC20 contracts
library Assert {
    error InvalidDustFeeRate();
    error NonEqualLength(uint256 a, uint256 b);
    error InvalidAction(bytes4 expected, bytes4 actual);
    error InvalidFeeApprovalSignature();

    error ZeroAddress();

    function zeroAddress(address addr) internal pure {
        if (addr == address(0)) revert ZeroAddress();
    }

    function dustFeeRate(uint256 rate) internal pure {
        if (rate == 0) revert InvalidDustFeeRate();
    }

    function equalLength(uint256 lengthA, uint256 lengthB) internal pure {
        if (lengthA != lengthB) revert NonEqualLength(lengthA, lengthB);
    }

    function selector(
        bytes calldata payload,
        bytes4 expectedAction
    ) internal pure {
        if (bytes4(payload) != expectedAction)
            revert InvalidAction(expectedAction, bytes4(payload));
    }

    function feeApproval(
        bytes32 digest,
        address recipient,
        bytes calldata signature
    ) internal view {
        if (
            !EIP1271SignatureUtils.checkSignature(recipient, digest, signature)
        ) {
            revert InvalidFeeApprovalSignature();
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {GMPUtils} from "../../gmp/libs/GMPUtils.sol";

library Assets {
    /// @dev Error thrown when payload length is too big
    error Assets_InvalidPayloadSize(uint256 expected, uint256 actual);

    error Assets_ZeroRequestHash();
    error Assets_ChainIdMismatch(bytes32 expected, bytes32 actual);
    error Assets_ZeroAmount();
    error Assets_ZeroRecipient();
    error Assets_InvalidRecipient();
    error Assets_ZeroFromToken();
    error Assets_ZeroToToken();
    error Assets_InvalidToToken();
    error Assets_InvalidSelector(bytes4 expected, bytes4 actual);

    struct Receipt {
        address recipient;
        uint256 amount;
        bytes32 fromToken;
        address toToken;
        bytes32 lChainId;
    }

    struct Release {
        address toToken;
        address recipient;
        uint256 amount;
    }

    // bytes4(keccak256("deposit(bytes32,bytes32,bytes32,bytes32,uint256)"))
    bytes4 internal constant DEPOSIT_REQUEST_SELECTOR = 0xccb41215;

    // bytes4(keccak256("redeem(bytes32,bytes32,bytes32,bytes,uint256)"))
    bytes4 internal constant REDEEM_REQUEST_SELECTOR = 0xaa3db85f;

    // bytes4(keccak256("redeemForBTC(bytes32,bytes,uint256)"))
    bytes4 internal constant REDEEM_FROM_NATIVE_TOKEN_SELECTOR = 0x4e3e5047;

    // bytes4(keccak256("mint(bytes32,bytes32,uint256)"))
    bytes4 internal constant MINT_SELECTOR = 0x155b6b13;

    /// @dev A constant representing the number of bytes for a slot of information in a payload.
    uint256 internal constant ABI_SLOT_SIZE = 32;

    bytes32 public constant BTC_STAKING_MODULE_ADDRESS =
        bytes32(uint256(0x0089e3e4e7a699d6f131d893aeef7ee143706ac23a));
    bytes32 public constant ASSETS_MODULE_ADDRESS =
        bytes32(uint256(0x008bf729ffe074caee622c02928173467e658e19e2));
    bytes32 public constant LEDGER_CALLER = bytes32(uint256(0x0));
    bytes32 public constant BITCOIN_NATIVE_COIN =
        bytes32(uint256(0x00000000000000000000000000000000000001));

    function encodeDepositRequest(
        bytes32 toChain,
        bytes32 toToken,
        bytes32 sender,
        bytes32 recipient,
        uint256 amount
    ) internal pure returns (bytes memory) {
        if (amount == 0) {
            revert Assets_ZeroAmount();
        }
        if (recipient == bytes32(0)) {
            revert Assets_ZeroRecipient();
        }
        return
            abi.encodeWithSelector(
                DEPOSIT_REQUEST_SELECTOR,
                toChain,
                toToken,
                sender,
                recipient,
                amount
            );
    }

    function encodeRedeemRequest(
        bytes32 toChain,
        bytes32 fromToken,
        bytes32 sender,
        bytes memory recipient,
        uint256 amount
    ) internal pure returns (bytes memory) {
        if (amount == 0) {
            revert Assets_ZeroAmount();
        }
        if (recipient.length == 0) {
            revert Assets_ZeroRecipient();
        }
        bool recipientValid = false;
        for (uint256 i = 0; i < recipient.length; ++i) {
            if (recipient[i] != 0x0) {
                recipientValid = true;
                break;
            }
        }
        if (!recipientValid) {
            revert Assets_ZeroRecipient();
        }
        return
            abi.encodeWithSelector(
                REDEEM_REQUEST_SELECTOR,
                toChain,
                fromToken,
                sender,
                recipient,
                amount
            );
    }

    function encodeRedeemNativeRequest(
        bytes32 sender,
        bytes memory recipient,
        uint256 amount
    ) internal pure returns (bytes memory) {
        if (amount == 0) {
            revert Assets_ZeroAmount();
        }
        if (recipient.length == 0) {
            revert Assets_ZeroRecipient();
        }
        bool recipientValid = false;
        for (uint256 i = 0; i < recipient.length; ++i) {
            if (recipient[i] != 0x0) {
                recipientValid = true;
                break;
            }
        }
        if (!recipientValid) {
            revert Assets_ZeroRecipient();
        }
        return
            abi.encodeWithSelector(
                REDEEM_FROM_NATIVE_TOKEN_SELECTOR,
                sender,
                recipient,
                amount
            );
    }

    function decodeRelease(
        bytes memory rawPayload
    ) internal pure returns (Release memory, bytes32) {
        if (rawPayload.length != ABI_SLOT_SIZE * 3 + 4) {
            revert Assets_InvalidPayloadSize(
                ABI_SLOT_SIZE * 3 + 4,
                rawPayload.length
            );
        }
        bytes4 selector;
        bytes32 rawToToken;
        bytes32 rawRecipient;
        uint256 amount;
        assembly {
            selector := mload(add(rawPayload, 0x20)) // first 4 bytes
            rawToToken := mload(add(rawPayload, 0x24)) // bytes 4..36
            rawRecipient := mload(add(rawPayload, 0x44)) // bytes 37..68
            amount := mload(add(rawPayload, 0x64)) // bytes 69..100
        }

        if (selector != MINT_SELECTOR) {
            revert Assets_InvalidSelector(MINT_SELECTOR, selector);
        }

        if (amount == 0) {
            revert Assets_ZeroAmount();
        }

        address recipient = GMPUtils.bytes32ToAddress(rawRecipient);
        if (recipient == address(0)) {
            revert Assets_ZeroRecipient();
        }

        address toToken = GMPUtils.bytes32ToAddress(rawToToken);
        if (toToken == address(0)) {
            revert Assets_ZeroToToken();
        }

        return (Release(toToken, recipient, amount), sha256(rawPayload));
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
import {BitcoinUtils} from "../../libs/BitcoinUtils.sol";

/// @dev collection of validations used in ERC20 contracts
library Validation {
    error AmountLessThanCommission(uint256 fee);
    error AmountBelowMinLimit(uint256 dustLimit);
    error ScriptPubkeyUnsupported();

    function redeemFee(
        bytes calldata scriptPubkey,
        uint256 amount,
        uint64 fee,
        uint256 minAmount
    ) internal pure returns (uint256) {
        (
            uint256 amountAfterFee,
            bool isAboveFee,
            bool isAboveMinLimit
        ) = calcFeeAndDustLimit(scriptPubkey, amount, fee, minAmount);
        if (!isAboveFee) {
            revert AmountLessThanCommission(fee);
        }
        if (!isAboveMinLimit) {
            revert AmountBelowMinLimit(minAmount);
        }

        return amountAfterFee;
    }

    function calcFeeAndDustLimit(
        bytes calldata scriptPubkey,
        uint256 amount,
        uint64 fee,
        uint256 minAmount
    ) internal pure returns (uint256, bool, bool) {
        BitcoinUtils.OutputType outType = BitcoinUtils.getOutputType(
            scriptPubkey
        );
        if (outType == BitcoinUtils.OutputType.UNSUPPORTED) {
            revert ScriptPubkeyUnsupported();
        }

        if (amount <= fee) {
            return (0, false, false);
        }

        uint256 amountAfterFee = amount - fee;

        bool isAboveMinLimit = amountAfterFee >= minAmount;
        return (amountAfterFee, true, isAboveMinLimit);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

library Actions {
    /// @dev toChain, recipient, amount, txid are validated
    struct DepositBtcActionV0 {
        uint256 toChain;
        address recipient;
        uint256 amount;
        bytes32 txid;
        uint32 vout;
    }

    /// @dev toChain, recipient, amount, txid, token are validated
    struct DepositBtcActionV1 {
        uint256 toChain;
        address recipient;
        uint256 amount;
        bytes32 txid;
        uint32 vout;
        address token;
    }

    struct DepositBridgeAction {
        uint256 fromChain;
        bytes32 fromContract;
        uint256 toChain;
        address toContract;
        address recipient;
        uint64 amount;
        uint256 nonce;
    }

    struct ValSetAction {
        uint256 epoch;
        address[] validators;
        uint256[] weights;
        uint256 weightThreshold;
        uint256 height;
    }

    struct FeeApprovalAction {
        uint256 fee;
        uint256 expiry;
    }

    struct RatioUpdate {
        bytes32 denom;
        uint256 ratio;
        uint256 switchTime;
    }

    /// @dev Error thrown when invalid public key is provided
    error InvalidPublicKey(bytes pubKey);

    /// @dev Error thrown when signatures length is not equal to signers length
    error Actions_LengthMismatch();

    /// @dev Error thrown when threshold is invalid
    error InvalidThreshold();

    /// @dev Error thrown when validator set size is invalid
    error InvalidValidatorSetSize();

    /// @dev Error thrown when zero validator is provided
    error ZeroValidator();

    /// @dev Error thrown when wrong chain id is provided
    error WrongChainId();

    /// @dev Error thrown when wrong contract is provided
    error WrongContract();

    /// @dev Error thrown when zero address is provided
    error Actions_ZeroAddress();

    /// @dev Error thrown when zero amount is provided
    error ZeroAmount();

    /// @dev Error thrown when zero weight is provided
    error ZeroWeight();

    /// @dev Error thrown when fee approval is expired
    error UserSignatureExpired(uint256 expiry);

    /// @dev Error thrown when amount is below fee
    error NotEnoughAmountToUseApproval();

    /// @dev Error thrown when zero fee is used
    error ZeroFee();

    /// @dev Error thrown when payload length is too big
    error InvalidPayloadSize(uint256 expected, uint256 actual);

    error ZeroTxId();

    error InvalidDestinationToken(address expected, address actual);

    error Actions_ZeroDenom();

    error Actions_ZeroRatio();

    // bytes4(keccak256("feeApproval(uint256,uint256)"))
    bytes4 internal constant FEE_APPROVAL_ACTION = 0x8175ca94;
    // keccak256("feeApproval(uint256 chainId,uint256 fee,uint256 expiry)")
    bytes32 internal constant FEE_APPROVAL_EIP712_ACTION =
        0x40ac9f6aa27075e64c1ed1ea2e831b20b8c25efdeb6b79fd0cf683c9a9c50725;
    // bytes4(keccak256("payload(bytes32,bytes32,uint64,bytes32,uint32)"))
    bytes4 internal constant DEPOSIT_BTC_ACTION_V0 = 0xf2e73f7c;
    // bytes4(keccak256("payload(bytes32,bytes32,uint64,bytes32,uint32,bytes32)"))
    bytes4 internal constant DEPOSIT_BTC_ACTION_V1 = 0xce25e7c2;
    // bytes4(keccak256("payload(bytes32,bytes32,bytes32,bytes32,bytes32,uint64,uint256)"))
    bytes4 internal constant DEPOSIT_BRIDGE_ACTION = 0x5c70a505;
    // bytes4(keccak256("payload(uint256,bytes[],uint256[],uint256,uint256)"))
    bytes4 internal constant NEW_VALSET = 0x4aab1d6f;
    // bytes4(keccak256("payload(bytes32,uint256,uint256)"))
    bytes4 internal constant RATIO_UPDATE = 0x6c722c2c;

    /// @dev Maximum number of validators allowed in the consortium.
    /// @notice This value is determined by the minimum of CometBFT consensus limitations and gas considerations:
    /// - CometBFT has a hard limit of 10,000 validators (https://docs.cometbft.com/v0.38/spec/core/state)
    /// - Gas-based calculation:
    ///   - Assumes 4281 gas per ECDSA signature verification
    ///   - Uses a conservative 30 million gas block limit
    ///   - Maximum possible signatures: 30,000,000 / 4,281 ≈ 7007
    ///   - Reverse calculated for BFT consensus (2/3 + 1):
    ///     7,007 = (10,509 * 2/3 + 1) rounded down
    /// - The lower value of 10,000 (CometBFT limit) and 10,509 (gas calculation) is chosen
    /// @dev This limit ensures compatibility with CometBFT while also considering gas limitations
    ///      for signature verification within a single block.
    uint256 private constant MAX_VALIDATOR_SET_SIZE = 102;

    /// @dev Minimum number of validators allowed in the system.
    /// @notice While set to 1 to allow for non-distributed scenarios, this configuration
    /// does not provide Byzantine fault tolerance. For a truly distributed and
    /// fault-tolerant system, a minimum of 4 validators would be recommended to tolerate
    /// at least one Byzantine fault.
    uint256 private constant MIN_VALIDATOR_SET_SIZE = 1;

    /// @dev A constant representing the number of bytes for a slot of information in a payload.
    uint256 internal constant ABI_SLOT_SIZE = 32;

    /**
     * @notice Returns decoded deposit btc msg v0
     * @dev Message should not contain the selector
     * @param payload Body of the mint payload
     */
    function depositBtcV0(
        bytes memory payload
    ) internal view returns (DepositBtcActionV0 memory) {
        if (payload.length != ABI_SLOT_SIZE * 5)
            revert InvalidPayloadSize(ABI_SLOT_SIZE * 5, payload.length);

        (
            uint256 toChain,
            address recipient,
            uint256 amount,
            bytes32 txid,
            uint32 vout
        ) = abi.decode(payload, (uint256, address, uint256, bytes32, uint32));

        if (toChain != block.chainid) {
            revert WrongChainId();
        }
        if (recipient == address(0)) {
            revert Actions_ZeroAddress();
        }
        if (amount == 0) {
            revert ZeroAmount();
        }
        if (txid == bytes32(0)) {
            revert ZeroTxId();
        }

        return DepositBtcActionV0(toChain, recipient, amount, txid, vout);
    }

    /**
     * @notice Returns decoded deposit btc msg v1
     * @dev Message should not contain the selector
     * @param payload Body of the mint payload
     */
    function depositBtcV1(
        bytes memory payload
    ) internal view returns (DepositBtcActionV1 memory) {
        if (payload.length != ABI_SLOT_SIZE * 6)
            revert InvalidPayloadSize(ABI_SLOT_SIZE * 6, payload.length);

        (
            uint256 toChain,
            address recipient,
            uint256 amount,
            bytes32 txid,
            uint32 vout,
            address token
        ) = abi.decode(
                payload,
                (uint256, address, uint256, bytes32, uint32, address)
            );

        if (toChain != block.chainid) {
            revert WrongChainId();
        }
        if (recipient == address(0)) {
            revert Actions_ZeroAddress();
        }
        if (amount == 0) {
            revert ZeroAmount();
        }
        if (txid == bytes32(0)) {
            revert ZeroTxId();
        }
        if (token != address(this)) {
            revert InvalidDestinationToken(address(this), token);
        }

        return
            DepositBtcActionV1(toChain, recipient, amount, txid, vout, token);
    }

    /**
     * @notice Returns decoded bridge payload
     * @dev Payload should not contain the selector
     * @param payload Body of the burn payload
     */
    function depositBridge(
        bytes memory payload
    ) internal view returns (DepositBridgeAction memory) {
        if (payload.length != ABI_SLOT_SIZE * 7)
            revert InvalidPayloadSize(ABI_SLOT_SIZE * 7, payload.length);

        (
            uint256 fromChain,
            bytes32 fromContract,
            uint256 toChain,
            address toContract,
            address recipient,
            uint64 amount,
            uint256 nonce
        ) = abi.decode(
                payload,
                (uint256, bytes32, uint256, address, address, uint64, uint256)
            );

        if (toChain != block.chainid) {
            revert WrongChainId();
        }
        if (recipient == address(0)) {
            revert Actions_ZeroAddress();
        }
        if (amount == 0) {
            revert ZeroAmount();
        }

        return
            DepositBridgeAction(
                fromChain,
                fromContract,
                toChain,
                toContract,
                recipient,
                amount,
                nonce
            );
    }

    /**
     * @notice Returns decoded validator set
     * @dev Payload should not contain the selector
     * @param payload Body of the set validators set payload
     */
    function validateValSet(
        bytes memory payload
    ) internal pure returns (ValSetAction memory) {
        (
            uint256 epoch,
            bytes[] memory pubKeys,
            uint256[] memory weights,
            uint256 weightThreshold,
            uint256 height
        ) = abi.decode(
                payload,
                (uint256, bytes[], uint256[], uint256, uint256)
            );

        // Since dynamic arrays can variably insert more slots of data for things such as data length,
        // offset etc., we will just encode the received variables again and check for a length match.
        bytes memory reEncodedPayload = abi.encode(
            epoch,
            pubKeys,
            weights,
            weightThreshold,
            height
        );
        if (reEncodedPayload.length != payload.length)
            revert InvalidPayloadSize(payload.length, reEncodedPayload.length);

        if (
            pubKeys.length < MIN_VALIDATOR_SET_SIZE ||
            pubKeys.length > MAX_VALIDATOR_SET_SIZE
        ) revert InvalidValidatorSetSize();

        if (pubKeys.length != weights.length) revert Actions_LengthMismatch();

        if (weightThreshold == 0) revert InvalidThreshold();

        uint256 sum = 0;
        for (uint256 i; i < weights.length; ) {
            if (weights[i] == 0) {
                revert ZeroWeight();
            }
            sum += weights[i];
            unchecked {
                ++i;
            }
        }
        if (sum < weightThreshold) revert InvalidThreshold();

        address[] memory validators = pubKeysToAddress(pubKeys);

        return
            ValSetAction(epoch, validators, weights, weightThreshold, height);
    }

    function pubKeysToAddress(
        bytes[] memory _pubKeys
    ) internal pure returns (address[] memory) {
        address[] memory addresses = new address[](_pubKeys.length);
        for (uint256 i; i < _pubKeys.length; ) {
            // each pubkey represented as uncompressed

            if (_pubKeys[i].length == 65) {
                bytes memory data = _pubKeys[i];

                // Ensure that first byte of pubkey is 0x04
                if (_pubKeys[i][0] != 0x04)
                    revert InvalidPublicKey(_pubKeys[i]);

                // create a new array with length - 1 (excluding the first 0x04 byte)
                bytes memory result = new bytes(data.length - 1);

                // use inline assembly for memory manipulation
                assembly {
                    // calculate the start of the `result` and `data` in memory
                    let resultData := add(result, 0x20) // points to the first byte of the result
                    let dataStart := add(data, 0x21) // points to the second byte of data (skip 0x04)

                    // copy 64 bytes from input (excluding the first byte) to result
                    mstore(resultData, mload(dataStart)) // copy the first 32 bytes
                    mstore(add(resultData, 0x20), mload(add(dataStart, 0x20))) // copy the next 32 bytes
                }

                addresses[i] = address(uint160(uint256(keccak256(result))));
            } else {
                revert InvalidPublicKey(_pubKeys[i]);
            }

            unchecked {
                ++i;
            }
        }
        return addresses;
    }

    /**
     * @notice Returns decoded fee approval
     * @dev Payload should not contain the selector
     * @param payload Body of the fee approval payload
     */
    function feeApproval(
        bytes memory payload
    ) internal view returns (FeeApprovalAction memory) {
        if (payload.length != ABI_SLOT_SIZE * 2)
            revert InvalidPayloadSize(ABI_SLOT_SIZE * 2, payload.length);

        (uint256 fee, uint256 expiry) = abi.decode(payload, (uint256, uint256));

        if (block.timestamp > expiry) {
            revert UserSignatureExpired(expiry);
        }
        if (fee == 0) {
            revert ZeroFee();
        }

        return FeeApprovalAction(fee, expiry);
    }

    /**
     * @notice Returns decoded ratio update message
     * @dev Message should not contain the selector
     * @param payload Body of the ratio update message
     */
    function ratioUpdate(
        bytes memory payload
    ) internal pure returns (RatioUpdate memory) {
        if (payload.length != ABI_SLOT_SIZE * 3)
            revert InvalidPayloadSize(ABI_SLOT_SIZE * 3, payload.length);

        (bytes32 denom, uint256 ratio, uint256 timestamp) = abi.decode(
            payload,
            (bytes32, uint256, uint256)
        );

        if (denom == bytes32(0)) {
            revert Actions_ZeroDenom();
        }
        if (ratio == uint256(0)) {
            revert Actions_ZeroRatio();
        }

        return RatioUpdate(denom, ratio, timestamp);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";

bytes1 constant OP_0 = 0x00;
bytes1 constant OP_1 = 0x51;
bytes1 constant OP_DATA_32 = 0x20;
bytes1 constant OP_DATA_20 = 0x14;

uint256 constant BASE_SPEND_COST = 49; // 32 (txid) + 4 (vout) + 1 (scriptSig size) + 4 (nSequence) + 8 (amount)

// Size of inputs spending different output types
uint256 constant NON_WITNESS_INPUT_SIZE = 107; // Used for non-witness outputs (P2PKH, P2SH)
uint256 constant WITNESS_INPUT_SIZE = 26; // floor(107 / 4), used for witness outputs (P2WPKH, P2WSH, P2TR)

library BitcoinUtils {
    enum OutputType {
        UNSUPPORTED,
        P2TR,
        P2WPKH,
        P2WSH
    }

    uint256 public constant DEFAULT_DUST_FEE_RATE = 3000; // Default value - 3 satoshis per byte

    function getOutputType(
        bytes calldata scriptPubkey
    ) internal pure returns (OutputType) {
        if (
            scriptPubkey.length == 22 &&
            scriptPubkey[0] == OP_0 &&
            scriptPubkey[1] == OP_DATA_20
        ) {
            return OutputType.P2WPKH;
        }

        if (
            scriptPubkey.length == 34 &&
            scriptPubkey[0] == OP_1 &&
            scriptPubkey[1] == OP_DATA_32
        ) {
            return OutputType.P2TR;
        }

        if (
            scriptPubkey.length == 34 &&
            scriptPubkey[0] == OP_0 &&
            scriptPubkey[1] == OP_DATA_32
        ) {
            return OutputType.P2WSH;
        }

        return OutputType.UNSUPPORTED;
    }

    /// @notice Compute the dust limit for a given Bitcoin script public key
    /// @dev The dust limit is the minimum payment to an address that is considered
    ///      spendable under consensus rules. This function is based on Bitcoin Core's
    ///      implementation.
    /// @param scriptPubkey The Bitcoin script public key as a byte array
    /// @param dustFeeRate The current dust fee rate (in satoshis per 1000 bytes)
    /// @return dustLimit The calculated dust limit in satoshis
    /// @custom:reference https://github.com/bitcoin/bitcoin/blob/43740f4971f45cd5499470b6a085b3ecd8b96d28/src/policy/policy.cpp#L54
    function getDustLimitForOutput(
        OutputType outType,
        bytes calldata scriptPubkey,
        uint256 dustFeeRate
    ) internal pure returns (uint256 dustLimit) {
        uint256 spendCost = BASE_SPEND_COST;

        if (
            outType == OutputType.P2TR ||
            outType == OutputType.P2WPKH ||
            outType == OutputType.P2WSH
        ) {
            // witness v0 and v1 has a cheaper payment formula
            spendCost += WITNESS_INPUT_SIZE;
            // The current addition creates a discrepancy of 1, and our final value should be 98 bytes.
            // Thus, we add 1 here.
            spendCost += 1;
        } else {
            spendCost += NON_WITNESS_INPUT_SIZE;
        }

        spendCost += scriptPubkey.length;

        // Calculate dust limit
        dustLimit = Math.ceilDiv(spendCost * dustFeeRate, 1000);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {IERC1271} from "@openzeppelin/contracts/interfaces/IERC1271.sol";
import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";

/**
 * @title Library of utilities for making EIP1271-compliant signature checks.
 * @author Lombard.Finance
 * @notice The contracts is a part of Lombard.Finace protocol
 */
library EIP1271SignatureUtils {
    // bytes4(keccak256("isValidSignature(bytes32,bytes)")
    bytes4 internal constant EIP1271_MAGICVALUE = 0x1626ba7e;
    bytes4 internal constant EIP1271_WRONGVALUE = 0xffffffff;

    /**
     * @notice Checks @param signature is a valid signature of @param digest from @param signer.
     * If the `signer` contains no code -- i.e. it is not (yet, at least) a contract address, then checks using standard ECDSA logic
     * Otherwise, passes on the signature to the signer to verify the signature and checks that it returns the `EIP1271_MAGICVALUE`.
     */
    function checkSignature(
        address signer,
        bytes32 digest,
        bytes memory signature
    ) internal view returns (bool) {
        if (signer.code.length != 0) {
            if (
                IERC1271(signer).isValidSignature(digest, signature) !=
                EIP1271_MAGICVALUE
            ) {
                return false;
            }
        } else {
            if (ECDSA.recover(digest, signature) != signer) {
                return false;
            }
        }
        return true;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

library LChainId {
    function get() internal view returns (bytes32) {
        // Ensure first byte is zero by masking the highest byte
        return
            bytes32(
                block.chainid &
                    0x00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
            );
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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