// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.21;

import {
    CrossChainTellerWithGenericBridge, ERC20
} from "src/base/Roles/CrossChain/CrossChainTellerWithGenericBridge.sol";
import {SafeTransferLib} from "@solmate/utils/SafeTransferLib.sol";
import {OAppAuth, Origin, MessagingFee, MessagingReceipt} from "@oapp-auth/OAppAuth.sol";
import {AddressToBytes32Lib} from "src/helper/AddressToBytes32Lib.sol";
import {OptionsBuilder} from "@oapp-auth/OptionsBuilder.sol";

contract LayerZeroTeller is CrossChainTellerWithGenericBridge, OAppAuth {
    using SafeTransferLib for ERC20;
    using AddressToBytes32Lib for address;
    using AddressToBytes32Lib for bytes32;
    using OptionsBuilder for bytes;

    // ========================================= STRUCTS =========================================

    /**
     * @notice Stores information about a chain.
     * @dev Sender is stored in OAppAuthCore `peers` mapping.
     * @param allowMessagesFrom Whether to allow messages from this chain.
     * @param allowMessagesTo Whether to allow messages to this chain.
     * @param messageGasLimit The gas limit for messages to this chain.
     */
    struct Chain {
        bool allowMessagesFrom;
        bool allowMessagesTo;
        uint128 messageGasLimit;
    }
    // ========================================= STATE =========================================

    /**
     * @notice Maps chain selector to chain information.
     */
    mapping(uint32 => Chain) public idToChains;

    //============================== ERRORS ===============================

    error LayerZeroTeller__MessagesNotAllowedFrom(uint256 chainSelector);
    error LayerZeroTeller__MessagesNotAllowedFromSender(uint256 chainSelector, address sender);
    error LayerZeroTeller__MessagesNotAllowedTo(uint256 chainSelector);
    error LayerZeroTeller__FeeExceedsMax(uint256 chainSelector, uint256 fee, uint256 maxFee);
    error LayerZeroTeller__BadFeeToken();
    error LayerZeroTeller__ZeroMessageGasLimit();

    //============================== EVENTS ===============================

    event ChainAdded(uint256 chainId, bool allowMessagesFrom, bool allowMessagesTo, address targetTeller);
    event ChainRemoved(uint256 chainId);
    event ChainAllowMessagesFrom(uint256 chainId, address targetTeller);
    event ChainAllowMessagesTo(uint256 chainId, address targetTeller);
    event ChainStopMessagesFrom(uint256 chainId);
    event ChainStopMessagesTo(uint256 chainId);
    event ChainSetGasLimit(uint256 chainId, uint128 messageGasLimit);

    //============================== IMMUTABLES ===============================

    /**
     * @notice The LayerZero token.
     */
    address internal immutable lzToken;

    constructor(
        address _owner,
        address _vault,
        address _accountant,
        address _weth,
        address _lzEndPoint,
        address _delegate,
        address _lzToken
    ) CrossChainTellerWithGenericBridge(_owner, _vault, _accountant, _weth) OAppAuth(_lzEndPoint, _delegate) {
        lzToken = _lzToken;
    }

    // ========================================= ADMIN FUNCTIONS =========================================
    /**
     * @notice Add a chain to the teller.
     * @dev Callable by OWNER_ROLE.
     * @param chainId The LayerZero chain id to add.
     * @param allowMessagesFrom Whether to allow messages from this chain.
     * @param allowMessagesTo Whether to allow messages to this chain.
     * @param targetTeller The address of the target teller on the other chain.
     * @param messageGasLimit The gas limit for messages to this chain.
     */
    function addChain(
        uint32 chainId,
        bool allowMessagesFrom,
        bool allowMessagesTo,
        address targetTeller,
        uint128 messageGasLimit
    ) external requiresAuth {
        if (allowMessagesTo && messageGasLimit == 0) {
            revert LayerZeroTeller__ZeroMessageGasLimit();
        }
        idToChains[chainId] = Chain(allowMessagesFrom, allowMessagesTo, messageGasLimit);
        _setPeer(chainId, targetTeller.toBytes32());

        emit ChainAdded(chainId, allowMessagesFrom, allowMessagesTo, targetTeller);
    }

    /**
     * @notice Remove a chain from the teller.
     * @dev Callable by MULTISIG_ROLE.
     */
    function removeChain(uint32 chainId) external requiresAuth {
        delete idToChains[chainId];
        _setPeer(chainId, bytes32(0));

        emit ChainRemoved(chainId);
    }

    /**
     * @notice Allow messages from a chain.
     * @dev Callable by OWNER_ROLE.
     */
    function allowMessagesFromChain(uint32 chainId, address targetTeller) external requiresAuth {
        Chain storage chain = idToChains[chainId];
        chain.allowMessagesFrom = true;
        _setPeer(chainId, targetTeller.toBytes32());

        emit ChainAllowMessagesFrom(chainId, targetTeller);
    }

    /**
     * @notice Allow messages to a chain.
     * @dev Callable by OWNER_ROLE.
     */
    function allowMessagesToChain(uint32 chainId, address targetTeller, uint128 messageGasLimit)
        external
        requiresAuth
    {
        if (messageGasLimit == 0) {
            revert LayerZeroTeller__ZeroMessageGasLimit();
        }
        Chain storage chain = idToChains[chainId];
        chain.allowMessagesTo = true;
        chain.messageGasLimit = messageGasLimit;
        _setPeer(chainId, targetTeller.toBytes32());

        emit ChainAllowMessagesTo(chainId, targetTeller);
    }

    /**
     * @notice Stop messages from a chain.
     * @dev Callable by MULTISIG_ROLE.
     */
    function stopMessagesFromChain(uint32 chainId) external requiresAuth {
        Chain storage chain = idToChains[chainId];
        chain.allowMessagesFrom = false;

        emit ChainStopMessagesFrom(chainId);
    }

    /**
     * @notice Stop messages to a chain.
     * @dev Callable by MULTISIG_ROLE.
     */
    function stopMessagesToChain(uint32 chainId) external requiresAuth {
        Chain storage chain = idToChains[chainId];
        chain.allowMessagesTo = false;

        emit ChainStopMessagesTo(chainId);
    }

    /**
     * @notice Set the gas limit for messages to a chain.
     * @dev Callable by OWNER_ROLE.
     */
    function setChainGasLimit(uint32 chainId, uint128 messageGasLimit) external requiresAuth {
        if (messageGasLimit == 0) {
            revert LayerZeroTeller__ZeroMessageGasLimit();
        }
        Chain storage chain = idToChains[chainId];
        chain.messageGasLimit = messageGasLimit;

        emit ChainSetGasLimit(chainId, messageGasLimit);
    }

    // ========================================= OAppAuthReceiver =========================================

    /**
     * @notice Receive messages from the LayerZero endpoint.
     * @dev `lzReceive` only sanitizes the message sender, but we also need to make sure we are allowing messages
     *      from the source chain.
     */
    function _lzReceive(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address, /*_executor*/
        bytes calldata /*_extraData*/
    ) internal override {
        Chain memory source = idToChains[_origin.srcEid];
        if (!source.allowMessagesFrom) revert LayerZeroTeller__MessagesNotAllowedFrom(_origin.srcEid);
        uint256 message = abi.decode(_message, (uint256));
        _completeMessageReceive(_guid, message);
    }

    // ========================================= INTERNAL BRIDGE FUNCTIONS =========================================

    /**
     * @notice Sends messages using Layer Zero end point.
     * @dev This function does NOT revert if the `feeToken` is invalid,
     *      rather the Layer Zero end point will revert.
     * @dev This function will revert if maxFee is exceeded.
     * @dev This function will revert if destination chain does not allow messages.
     * @param message The message to send.
     * @param bridgeWildCard An abi encoded uint32 containing the destination chain id.
     * @param feeToken The token to pay the bridge fee in.
     * @param maxFee The maximum fee to pay the bridge.
     */
    function _sendMessage(uint256 message, bytes calldata bridgeWildCard, ERC20 feeToken, uint256 maxFee)
        internal
        override
        returns (bytes32 messageId)
    {
        uint32 destinationId = abi.decode(bridgeWildCard, (uint32));
        Chain memory chain = idToChains[destinationId];
        if (!chain.allowMessagesTo) {
            revert LayerZeroTeller__MessagesNotAllowedTo(destinationId);
        }
        bytes memory m = abi.encode(message);
        bytes memory options = OptionsBuilder.newOptions().addExecutorLzReceiveOption(chain.messageGasLimit, 0);
        MessagingFee memory fee = _quote(destinationId, m, options, address(feeToken) != NATIVE);
        if (address(feeToken) == NATIVE) {
            if (fee.nativeFee > maxFee) {
                revert LayerZeroTeller__FeeExceedsMax(destinationId, fee.nativeFee, maxFee);
            }
        } else if (address(feeToken) == lzToken) {
            if (fee.lzTokenFee > maxFee) {
                revert LayerZeroTeller__FeeExceedsMax(destinationId, fee.lzTokenFee, maxFee);
            }
        } else {
            revert LayerZeroTeller__BadFeeToken();
        }
        MessagingReceipt memory receipt = _lzSend(destinationId, m, options, fee, msg.sender);

        messageId = receipt.guid;
    }

    /**
     * @notice Preview fee required to bridge shares in a given feeToken.
     * @param message The message to send.
     * @param bridgeWildCard An abi encoded uint32 containing the destination chain id.
     * @param feeToken The token to pay the bridge fee in.
     */
    function _previewFee(uint256 message, bytes calldata bridgeWildCard, ERC20 feeToken)
        internal
        view
        override
        returns (uint256 fee)
    {
        // Make sure feeToken is either NATIVE or lzToken.
        if (address(feeToken) != NATIVE && address(feeToken) != lzToken) {
            revert LayerZeroTeller__BadFeeToken();
        }
        uint32 destinationId = abi.decode(bridgeWildCard, (uint32));
        Chain memory chain = idToChains[destinationId];
        if (!chain.allowMessagesTo) {
            revert LayerZeroTeller__MessagesNotAllowedTo(destinationId);
        }
        bytes memory m = abi.encode(message);
        bytes memory options = OptionsBuilder.newOptions().addExecutorLzReceiveOption(chain.messageGasLimit, 0);
        MessagingFee memory messageFee = _quote(destinationId, m, options, address(feeToken) != NATIVE);

        fee = address(feeToken) == NATIVE ? messageFee.nativeFee : messageFee.lzTokenFee;
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.21;

import {TellerWithMultiAssetSupport, ERC20} from "src/base/Roles/TellerWithMultiAssetSupport.sol";
import {MessageLib} from "src/base/Roles/CrossChain/MessageLib.sol";

abstract contract CrossChainTellerWithGenericBridge is TellerWithMultiAssetSupport {
    using MessageLib for uint256;
    using MessageLib for MessageLib.Message;

    //============================== ERRORS ===============================

    error CrossChainTellerWithGenericBridge__UnsafeCastToUint96();

    //============================== EVENTS ===============================

    event MessageSent(bytes32 indexed messageId, uint256 shareAmount, address indexed to);
    event MessageReceived(bytes32 indexed messageId, uint256 shareAmount, address indexed to);

    //============================== IMMUTABLES ===============================

    constructor(address _owner, address _vault, address _accountant, address _weth)
        TellerWithMultiAssetSupport(_owner, _vault, _accountant, _weth)
    {}

    // ========================================= PUBLIC FUNCTIONS =========================================

    /**
     * @notice Deposit an asset and bridge the shares to another chain.
     * @dev This function will REVERT if `beforeTransfer` hook reverts from:
     *     - shares being locked
     *     - allow list
     * @dev Since call to `bridge` is public, msg.sig is not updated which means any role capabilities regarding this function
     *      are also granted to the `bridge` function.
     */
    function depositAndBridge(
        ERC20 depositAsset,
        uint256 depositAmount,
        uint256 minimumMint,
        address to,
        bytes calldata bridgeWildCard,
        ERC20 feeToken,
        uint256 maxFee
    )
        external
        payable
        requiresAuth
        nonReentrant
        revertOnNativeDeposit(address(depositAsset))
        returns (uint256 sharesBridged)
    {
        // Deposit
        Asset memory asset = _beforeDeposit(depositAsset);
        sharesBridged = _erc20Deposit(depositAsset, depositAmount, minimumMint, msg.sender, msg.sender, asset);
        _afterPublicDeposit(msg.sender, depositAsset, depositAmount, sharesBridged, shareLockPeriod);

        // Bridge shares
        if (sharesBridged > type(uint96).max) revert CrossChainTellerWithGenericBridge__UnsafeCastToUint96();
        _bridge(uint96(sharesBridged), to, bridgeWildCard, feeToken, maxFee);
    }

    /**
     * @notice Deposit an asset and bridge the shares to another chain using a permit.
     * @dev This function will REVERT if `beforeTransfer` hook reverts from:
     *     - shares being locked
     *     - allow list
     * @dev Since calls to `depositWithPermit` and `bridge` are public, msg.sig is not updated which means any role capabilities regarding this function
     *      are also granted to the `depositWithPermit` and `bridge` function.
     */
    function depositAndBridgeWithPermit(
        ERC20 depositAsset,
        uint256 depositAmount,
        uint256 minimumMint,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s,
        address to,
        bytes calldata bridgeWildCard,
        ERC20 feeToken,
        uint256 maxFee
    )
        external
        payable
        requiresAuth
        nonReentrant
        revertOnNativeDeposit(address(depositAsset))
        returns (uint256 sharesBridged)
    {
        // Permit deposit
        {
            Asset memory asset = _beforeDeposit(depositAsset);
            _handlePermit(depositAsset, depositAmount, deadline, v, r, s);
            sharesBridged = _erc20Deposit(depositAsset, depositAmount, minimumMint, msg.sender, msg.sender, asset);
        }
        _afterPublicDeposit(msg.sender, depositAsset, depositAmount, sharesBridged, shareLockPeriod);

        // Bridge shares
        if (sharesBridged > type(uint96).max) revert CrossChainTellerWithGenericBridge__UnsafeCastToUint96();
        _bridge(uint96(sharesBridged), to, bridgeWildCard, feeToken, maxFee);
    }

    /**
     * @notice Bridge shares to another chain.
     * @param shareAmount The amount of shares to bridge.
     * @param to The address to send the shares to on the other chain.
     * @param bridgeWildCard The bridge specific data to configure message.
     * @param feeToken The token to pay the bridge fee in.
     * @param maxFee The maximum fee to pay the bridge.
     */
    function bridge(uint96 shareAmount, address to, bytes calldata bridgeWildCard, ERC20 feeToken, uint256 maxFee)
        external
        payable
        requiresAuth
        nonReentrant
    {
        if (isPaused) revert TellerWithMultiAssetSupport__Paused();
        _bridge(shareAmount, to, bridgeWildCard, feeToken, maxFee);
    }

    /**
     * @notice Preview fee required to bridge shares in a given feeToken.
     */
    function previewFee(uint96 shareAmount, address to, bytes calldata bridgeWildCard, ERC20 feeToken)
        external
        view
        returns (uint256 fee)
    {
        MessageLib.Message memory m = MessageLib.Message(shareAmount, to);
        uint256 message = m.messageToUint256();

        return _previewFee(message, bridgeWildCard, feeToken);
    }

    // ========================================= INTERNAL BRIDGE FUNCTIONS =========================================

    /**
     * @notice Implement the bridge logic.
     */
    function _bridge(uint96 shareAmount, address to, bytes calldata bridgeWildCard, ERC20 feeToken, uint256 maxFee)
        internal
    {
        // Since shares are directly burned, call `beforeTransfer` to enforce before transfer hooks.
        beforeTransfer(msg.sender, address(0), msg.sender);

        // Burn shares from sender
        vault.exit(address(0), ERC20(address(0)), 0, msg.sender, shareAmount);

        // Send the message.
        MessageLib.Message memory m = MessageLib.Message(shareAmount, to);
        // `messageToUnit256` reverts on overflow, eventhough it is not possible to overflow.
        // This was done for future proofing.
        uint256 message = m.messageToUint256();

        bytes32 messageId = _sendMessage(message, bridgeWildCard, feeToken, maxFee);

        emit MessageSent(messageId, shareAmount, to);
    }

    /**
     * @notice Complete the message receive process, should be called in child contract once
     *         message has been confirmed as legit.`
     */
    function _completeMessageReceive(bytes32 messageId, uint256 message) internal {
        MessageLib.Message memory m = message.uint256ToMessage();

        // Mint shares to message.to
        vault.enter(address(0), ERC20(address(0)), 0, m.to, m.shareAmount);

        emit MessageReceived(messageId, m.shareAmount, m.to);
    }

    /**
     * @notice Send the message to the bridge implementation.
     * @dev This function should handle reverting if maxFee exceeds the fee required to send the message.
     * @dev This function should handle collecting the fee.
     * @param message The message to send.
     * @param bridgeWildCard The bridge specific data to configure message.
     * @param feeToken The token to pay the bridge fee in.
     * @param maxFee The maximum fee to pay the bridge.
     */
    function _sendMessage(uint256 message, bytes calldata bridgeWildCard, ERC20 feeToken, uint256 maxFee)
        internal
        virtual
        returns (bytes32 messageId);

    /**
     * @notice Preview fee required to bridge shares in a given token.
     */
    function _previewFee(uint256 message, bytes calldata bridgeWildCard, ERC20 feeToken)
        internal
        view
        virtual
        returns (uint256 fee);
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

import {ERC20} from "../tokens/ERC20.sol";

/// @notice Safe ETH and ERC20 transfer library that gracefully handles missing return values.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SafeTransferLib.sol)
/// @dev Use with caution! Some functions in this library knowingly create dirty bits at the destination of the free memory pointer.
/// @dev Note that none of the functions in this library check that a token has code at all! That responsibility is delegated to the caller.
library SafeTransferLib {
    /*//////////////////////////////////////////////////////////////
                             ETH OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferETH(address to, uint256 amount) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Transfer the ETH and store if it succeeded or not.
            success := call(gas(), to, amount, 0, 0, 0, 0)
        }

        require(success, "ETH_TRANSFER_FAILED");
    }

    /*//////////////////////////////////////////////////////////////
                            ERC20 OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function safeTransferFrom(
        ERC20 token,
        address from,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x23b872dd00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), and(from, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "from" argument.
            mstore(add(freeMemoryPointer, 36), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument.
            mstore(add(freeMemoryPointer, 68), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 100 because the length of our calldata totals up like so: 4 + 32 * 3.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 100, 0, 32)
            )
        }

        require(success, "TRANSFER_FROM_FAILED");
    }

    function safeTransfer(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0xa9059cbb00000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        require(success, "TRANSFER_FAILED");
    }

    function safeApprove(
        ERC20 token,
        address to,
        uint256 amount
    ) internal {
        bool success;

        /// @solidity memory-safe-assembly
        assembly {
            // Get a pointer to some free memory.
            let freeMemoryPointer := mload(0x40)

            // Write the abi-encoded calldata into memory, beginning with the function selector.
            mstore(freeMemoryPointer, 0x095ea7b300000000000000000000000000000000000000000000000000000000)
            mstore(add(freeMemoryPointer, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument.
            mstore(add(freeMemoryPointer, 36), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type.

            success := and(
                // Set success to whether the call reverted, if not we check it either
                // returned exactly 1 (can't just be non-zero data), or had no return data.
                or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
                // We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
                // We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
                // Counterintuitively, this call must be positioned second to the or() call in the
                // surrounding and() call or else returndatasize() will be zero during the computation.
                call(gas(), token, 0, freeMemoryPointer, 68, 0, 32)
            )
        }

        require(success, "APPROVE_FAILED");
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

// @dev Import the 'MessagingFee' and 'MessagingReceipt' so it's exposed to OApp implementers
// solhint-disable-next-line no-unused-import
import {OAppAuthSender, MessagingFee, MessagingReceipt} from "./OAppAuthSender.sol";
// @dev Import the 'Origin' so it's exposed to OApp implementers
// solhint-disable-next-line no-unused-import
import {OAppAuthReceiver, Origin} from "./OAppAuthReceiver.sol";
import {OAppAuthCore} from "./OAppAuthCore.sol";

/**
 * @title OApp
 * @dev Abstract contract serving as the base for OApp implementation, combining OAppSender and OAppReceiver functionality.
 */
abstract contract OAppAuth is OAppAuthSender, OAppAuthReceiver {
    /**
     * @dev Constructor to initialize the OApp with the provided endpoint and owner.
     * @param _endpoint The address of the LOCAL LayerZero endpoint.
     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
     */
    constructor(address _endpoint, address _delegate) OAppAuthCore(_endpoint, _delegate) {}

    /**
     * @notice Retrieves the OApp version information.
     * @return senderVersion The version of the OAppSender.sol implementation.
     * @return receiverVersion The version of the OAppReceiver.sol implementation.
     */
    function oAppVersion()
        public
        pure
        virtual
        override(OAppAuthSender, OAppAuthReceiver)
        returns (uint64 senderVersion, uint64 receiverVersion)
    {
        return (SENDER_VERSION, RECEIVER_VERSION);
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.0;

library AddressToBytes32Lib {
    function toBytes32(address addressValue) internal pure returns (bytes32) {
        return bytes32(uint256(uint160(addressValue)));
    }

    function toAddress(bytes32 bytes32Value) internal pure returns (address) {
        return address(bytes20(bytes32Value << 96));
    }
}

// SPDX-License-Identifier: UNLICENSED

pragma solidity ^0.8.20;

import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import {BytesLib} from "@sbu/contracts/BytesLib.sol";

library OptionsBuilder {
    using SafeCast for uint256;
    using BytesLib for bytes;

    // Constants for options types
    uint16 internal constant TYPE_3 = 3;
    uint8 internal constant OPTION_TYPE_LZRECEIVE = 1;
    uint8 internal constant WORKER_ID = 1;

    error InvalidOptionType(uint16 optionType);

    // Modifier to ensure only options of type 3 are used
    modifier onlyType3(bytes memory _options) {
        if (_options.toUint16(0) != TYPE_3) revert InvalidOptionType(_options.toUint16(0));
        _;
    }

    /**
     * @dev Creates a new options container with type 3.
     * @return options The newly created options container.
     */
    function newOptions() internal pure returns (bytes memory) {
        return abi.encodePacked(TYPE_3);
    }

    /**
     * @dev Adds an executor LZ receive option to the existing options.
     * @param _options The existing options container.
     * @param _gas The gasLimit used on the lzReceive() function in the OApp.
     * @param _value The msg.value passed to the lzReceive() function in the OApp.
     * @return options The updated options container.
     *
     * @dev When multiples of this option are added, they are summed by the executor
     * eg. if (_gas: 200k, and _value: 1 ether) AND (_gas: 100k, _value: 0.5 ether) are sent in an option to the LayerZeroEndpoint,
     * that becomes (300k, 1.5 ether) when the message is executed on the remote lzReceive() function.
     */
    function addExecutorLzReceiveOption(bytes memory _options, uint128 _gas, uint128 _value)
        internal
        pure
        onlyType3(_options)
        returns (bytes memory)
    {
        bytes memory option = encodeLzReceiveOption(_gas, _value);
        return addExecutorOption(_options, OPTION_TYPE_LZRECEIVE, option);
    }

    /**
     * @dev Adds an executor option to the existing options.
     * @param _options The existing options container.
     * @param _optionType The type of the executor option.
     * @param _option The encoded data for the executor option.
     * @return options The updated options container.
     */
    function addExecutorOption(bytes memory _options, uint8 _optionType, bytes memory _option)
        internal
        pure
        onlyType3(_options)
        returns (bytes memory)
    {
        return abi.encodePacked(
            _options,
            WORKER_ID,
            _option.length.toUint16() + 1, // +1 for optionType
            _optionType,
            _option
        );
    }

    function encodeLzReceiveOption(uint128 _gas, uint128 _value) internal pure returns (bytes memory) {
        return _value == 0 ? abi.encodePacked(_gas) : abi.encodePacked(_gas, _value);
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.21;

import {ERC20} from "@solmate/tokens/ERC20.sol";
import {WETH} from "@solmate/tokens/WETH.sol";
import {BoringVault} from "src/base/BoringVault.sol";
import {AccountantWithRateProviders} from "src/base/Roles/AccountantWithRateProviders.sol";
import {FixedPointMathLib} from "@solmate/utils/FixedPointMathLib.sol";
import {SafeTransferLib} from "@solmate/utils/SafeTransferLib.sol";
import {BeforeTransferHook} from "src/interfaces/BeforeTransferHook.sol";
import {Auth, Authority} from "@solmate/auth/Auth.sol";
import {ReentrancyGuard} from "@solmate/utils/ReentrancyGuard.sol";
import {IPausable} from "src/interfaces/IPausable.sol";

contract TellerWithMultiAssetSupport is Auth, BeforeTransferHook, ReentrancyGuard, IPausable {
    using FixedPointMathLib for uint256;
    using SafeTransferLib for ERC20;
    using SafeTransferLib for WETH;

    // ========================================= STRUCTS =========================================
    /**
     * @param allowDeposits bool indicating whether or not deposits are allowed for this asset.
     * @param allowWithdraws bool indicating whether or not withdraws are allowed for this asset.
     * @param sharePremium uint16 indicating the premium to apply to the shares minted.
     *        where 40 represents a 40bps reduction in shares minted using this asset.
     */
    struct Asset {
        bool allowDeposits;
        bool allowWithdraws;
        uint16 sharePremium;
    }

    // ========================================= CONSTANTS =========================================

    /**
     * @notice Native address used to tell the contract to handle native asset deposits.
     */
    address internal constant NATIVE = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    /**
     * @notice The maximum possible share lock period.
     */
    uint256 internal constant MAX_SHARE_LOCK_PERIOD = 3 days;

    /**
     * @notice The maximum possible share premium that can be set using `updateAssetData`.
     * @dev 1,000 or 10%
     */
    uint16 internal constant MAX_SHARE_PREMIUM = 1_000;

    // ========================================= STATE =========================================

    /**
     * @notice Mapping ERC20s to their assetData.
     */
    mapping(ERC20 => Asset) public assetData;

    /**
     * @notice The deposit nonce used to map to a deposit hash.
     */
    uint96 public depositNonce;

    /**
     * @notice After deposits, shares are locked to the msg.sender's address
     *         for `shareLockPeriod`.
     * @dev During this time all trasnfers from msg.sender will revert, and
     *      deposits are refundable.
     */
    uint64 public shareLockPeriod;

    /**
     * @notice Used to pause calls to `deposit` and `depositWithPermit`.
     */
    bool public isPaused;

    /**
     * @dev Maps deposit nonce to keccak256(address receiver, address depositAsset, uint256 depositAmount, uint256 shareAmount, uint256 timestamp, uint256 shareLockPeriod).
     */
    mapping(uint256 => bytes32) public publicDepositHistory;

    /**
     * @notice Maps user address to the time their shares will be unlocked.
     */
    mapping(address => uint256) public shareUnlockTime;

    /**
     * @notice Mapping `from` address to a bool to deny them from transferring shares.
     */
    mapping(address => bool) public fromDenyList;

    /**
     * @notice Mapping `to` address to a bool to deny them from receiving shares.
     */
    mapping(address => bool) public toDenyList;

    /**
     * @notice Mapping `opeartor` address to a bool to deny them from calling `transfer` or `transferFrom`.
     */
    mapping(address => bool) public operatorDenyList;

    //============================== ERRORS ===============================

    error TellerWithMultiAssetSupport__ShareLockPeriodTooLong();
    error TellerWithMultiAssetSupport__SharesAreLocked();
    error TellerWithMultiAssetSupport__SharesAreUnLocked();
    error TellerWithMultiAssetSupport__BadDepositHash();
    error TellerWithMultiAssetSupport__AssetNotSupported();
    error TellerWithMultiAssetSupport__ZeroAssets();
    error TellerWithMultiAssetSupport__MinimumMintNotMet();
    error TellerWithMultiAssetSupport__MinimumAssetsNotMet();
    error TellerWithMultiAssetSupport__PermitFailedAndAllowanceTooLow();
    error TellerWithMultiAssetSupport__ZeroShares();
    error TellerWithMultiAssetSupport__DualDeposit();
    error TellerWithMultiAssetSupport__Paused();
    error TellerWithMultiAssetSupport__TransferDenied(address from, address to, address operator);
    error TellerWithMultiAssetSupport__SharePremiumTooLarge();
    error TellerWithMultiAssetSupport__CannotDepositNative();

    //============================== EVENTS ===============================

    event Paused();
    event Unpaused();
    event AssetDataUpdated(address indexed asset, bool allowDeposits, bool allowWithdraws, uint16 sharePremium);
    event Deposit(
        uint256 indexed nonce,
        address indexed receiver,
        address indexed depositAsset,
        uint256 depositAmount,
        uint256 shareAmount,
        uint256 depositTimestamp,
        uint256 shareLockPeriodAtTimeOfDeposit
    );
    event BulkDeposit(address indexed asset, uint256 depositAmount);
    event BulkWithdraw(address indexed asset, uint256 shareAmount);
    event DepositRefunded(uint256 indexed nonce, bytes32 depositHash, address indexed user);
    event DenyFrom(address indexed user);
    event DenyTo(address indexed user);
    event DenyOperator(address indexed user);
    event AllowFrom(address indexed user);
    event AllowTo(address indexed user);
    event AllowOperator(address indexed user);

    // =============================== MODIFIERS ===============================

    /**
     * @notice Reverts if the deposit asset is the native asset.
     */
    modifier revertOnNativeDeposit(address depositAsset) {
        if (depositAsset == NATIVE) revert TellerWithMultiAssetSupport__CannotDepositNative();
        _;
    }

    //============================== IMMUTABLES ===============================

    /**
     * @notice The BoringVault this contract is working with.
     */
    BoringVault public immutable vault;

    /**
     * @notice The AccountantWithRateProviders this contract is working with.
     */
    AccountantWithRateProviders public immutable accountant;

    /**
     * @notice One share of the BoringVault.
     */
    uint256 internal immutable ONE_SHARE;

    /**
     * @notice The native wrapper contract.
     */
    WETH public immutable nativeWrapper;

    constructor(address _owner, address _vault, address _accountant, address _weth)
        Auth(_owner, Authority(address(0)))
    {
        vault = BoringVault(payable(_vault));
        ONE_SHARE = 10 ** vault.decimals();
        accountant = AccountantWithRateProviders(_accountant);
        nativeWrapper = WETH(payable(_weth));
    }

    // ========================================= ADMIN FUNCTIONS =========================================

    /**
     * @notice Pause this contract, which prevents future calls to `deposit` and `depositWithPermit`.
     * @dev Callable by MULTISIG_ROLE.
     */
    function pause() external requiresAuth {
        isPaused = true;
        emit Paused();
    }

    /**
     * @notice Unpause this contract, which allows future calls to `deposit` and `depositWithPermit`.
     * @dev Callable by MULTISIG_ROLE.
     */
    function unpause() external requiresAuth {
        isPaused = false;
        emit Unpaused();
    }

    /**
     * @notice Updates the asset data for a given asset.
     * @dev The accountant must also support pricing this asset, else the `deposit` call will revert.
     * @dev Callable by OWNER_ROLE.
     */
    function updateAssetData(ERC20 asset, bool allowDeposits, bool allowWithdraws, uint16 sharePremium)
        external
        requiresAuth
    {
        if (sharePremium > MAX_SHARE_PREMIUM) revert TellerWithMultiAssetSupport__SharePremiumTooLarge();
        assetData[asset] = Asset(allowDeposits, allowWithdraws, sharePremium);
        emit AssetDataUpdated(address(asset), allowDeposits, allowWithdraws, sharePremium);
    }

    /**
     * @notice Sets the share lock period.
     * @dev This not only locks shares to the user address, but also serves as the pending deposit period, where deposits can be reverted.
     * @dev If a new shorter share lock period is set, users with pending share locks could make a new deposit to receive 1 wei shares,
     *      and have their shares unlock sooner than their original deposit allows. This state would allow for the user deposit to be refunded,
     *      but only if they have not transferred their shares out of there wallet. This is an accepted limitation, and should be known when decreasing
     *      the share lock period.
     * @dev Callable by OWNER_ROLE.
     */
    function setShareLockPeriod(uint64 _shareLockPeriod) external requiresAuth {
        if (_shareLockPeriod > MAX_SHARE_LOCK_PERIOD) revert TellerWithMultiAssetSupport__ShareLockPeriodTooLong();
        shareLockPeriod = _shareLockPeriod;
    }

    /**
     * @notice Deny a user from transferring or receiving shares.
     * @dev Callable by OWNER_ROLE, and DENIER_ROLE.
     */
    function denyAll(address user) external requiresAuth {
        fromDenyList[user] = true;
        toDenyList[user] = true;
        operatorDenyList[user] = true;
        emit DenyFrom(user);
        emit DenyTo(user);
        emit DenyOperator(user);
    }

    /**
     * @notice Allow a user to transfer or receive shares.
     * @dev Callable by OWNER_ROLE, and DENIER_ROLE.
     */
    function allowAll(address user) external requiresAuth {
        fromDenyList[user] = false;
        toDenyList[user] = false;
        operatorDenyList[user] = false;
        emit AllowFrom(user);
        emit AllowTo(user);
        emit AllowOperator(user);
    }

    /**
     * @notice Deny a user from transferring shares.
     * @dev Callable by OWNER_ROLE, and DENIER_ROLE.
     */
    function denyFrom(address user) external requiresAuth {
        fromDenyList[user] = true;
        emit DenyFrom(user);
    }

    /**
     * @notice Allow a user to transfer shares.
     * @dev Callable by OWNER_ROLE, and DENIER_ROLE.
     */
    function allowFrom(address user) external requiresAuth {
        fromDenyList[user] = false;
        emit AllowFrom(user);
    }

    /**
     * @notice Deny a user from receiving shares.
     * @dev Callable by OWNER_ROLE, and DENIER_ROLE.
     */
    function denyTo(address user) external requiresAuth {
        toDenyList[user] = true;
        emit DenyTo(user);
    }

    /**
     * @notice Allow a user to receive shares.
     * @dev Callable by OWNER_ROLE, and DENIER_ROLE.
     */
    function allowTo(address user) external requiresAuth {
        toDenyList[user] = false;
        emit AllowTo(user);
    }

    /**
     * @notice Deny an operator from transferring shares.
     * @dev Callable by OWNER_ROLE, and DENIER_ROLE.
     */
    function denyOperator(address user) external requiresAuth {
        operatorDenyList[user] = true;
        emit DenyOperator(user);
    }

    /**
     * @notice Allow an operator to transfer shares.
     * @dev Callable by OWNER_ROLE, and DENIER_ROLE.
     */
    function allowOperator(address user) external requiresAuth {
        operatorDenyList[user] = false;
        emit AllowOperator(user);
    }

    // ========================================= BeforeTransferHook FUNCTIONS =========================================

    /**
     * @notice Implement beforeTransfer hook to check if shares are locked, or if `from`, `to`, or `operator` are on the deny list.
     * @notice If share lock period is set to zero, then users will be able to mint and transfer in the same tx.
     *         if this behavior is not desired then a share lock period of >=1 should be used.
     */
    function beforeTransfer(address from, address to, address operator) public view virtual {
        if (fromDenyList[from] || toDenyList[to] || operatorDenyList[operator]) {
            revert TellerWithMultiAssetSupport__TransferDenied(from, to, operator);
        }
        if (shareUnlockTime[from] > block.timestamp) revert TellerWithMultiAssetSupport__SharesAreLocked();
    }

    // ========================================= REVERT DEPOSIT FUNCTIONS =========================================

    /**
     * @notice Allows DEPOSIT_REFUNDER_ROLE to revert a pending deposit.
     * @dev Once a deposit share lock period has passed, it can no longer be reverted.
     * @dev It is possible the admin does not setup the BoringVault to call the transfer hook,
     *      but this contract can still be saving share lock state. In the event this happens
     *      deposits are still refundable if the user has not transferred their shares.
     *      But there is no guarantee that the user has not transferred their shares.
     * @dev Callable by STRATEGIST_MULTISIG_ROLE.
     */
    function refundDeposit(
        uint256 nonce,
        address receiver,
        address depositAsset,
        uint256 depositAmount,
        uint256 shareAmount,
        uint256 depositTimestamp,
        uint256 shareLockUpPeriodAtTimeOfDeposit
    ) external requiresAuth {
        if ((block.timestamp - depositTimestamp) >= shareLockUpPeriodAtTimeOfDeposit) {
            // Shares are already unlocked, so we can not revert deposit.
            revert TellerWithMultiAssetSupport__SharesAreUnLocked();
        }
        bytes32 depositHash = keccak256(
            abi.encode(
                receiver, depositAsset, depositAmount, shareAmount, depositTimestamp, shareLockUpPeriodAtTimeOfDeposit
            )
        );
        if (publicDepositHistory[nonce] != depositHash) revert TellerWithMultiAssetSupport__BadDepositHash();

        // Delete hash to prevent refund gas.
        delete publicDepositHistory[nonce];

        // If deposit used native asset, send user back wrapped native asset.
        depositAsset = depositAsset == NATIVE ? address(nativeWrapper) : depositAsset;
        // Burn shares and refund assets to receiver.
        vault.exit(receiver, ERC20(depositAsset), depositAmount, receiver, shareAmount);

        emit DepositRefunded(nonce, depositHash, receiver);
    }

    // ========================================= USER FUNCTIONS =========================================

    /**
     * @notice Allows users to deposit into the BoringVault, if this contract is not paused.
     * @dev Publicly callable.
     */
    function deposit(ERC20 depositAsset, uint256 depositAmount, uint256 minimumMint)
        external
        payable
        requiresAuth
        nonReentrant
        returns (uint256 shares)
    {
        Asset memory asset = _beforeDeposit(depositAsset);

        address from;
        if (address(depositAsset) == NATIVE) {
            if (msg.value == 0) revert TellerWithMultiAssetSupport__ZeroAssets();
            nativeWrapper.deposit{value: msg.value}();
            // Set depositAmount to msg.value.
            depositAmount = msg.value;
            nativeWrapper.safeApprove(address(vault), depositAmount);
            // Update depositAsset to nativeWrapper.
            depositAsset = nativeWrapper;
            // Set from to this address since user transferred value.
            from = address(this);
        } else {
            if (msg.value > 0) revert TellerWithMultiAssetSupport__DualDeposit();
            from = msg.sender;
        }

        shares = _erc20Deposit(depositAsset, depositAmount, minimumMint, from, msg.sender, asset);
        _afterPublicDeposit(msg.sender, depositAsset, depositAmount, shares, shareLockPeriod);
    }

    /**
     * @notice Allows users to deposit into BoringVault using permit.
     * @dev Publicly callable.
     */
    function depositWithPermit(
        ERC20 depositAsset,
        uint256 depositAmount,
        uint256 minimumMint,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external requiresAuth nonReentrant revertOnNativeDeposit(address(depositAsset)) returns (uint256 shares) {
        Asset memory asset = _beforeDeposit(depositAsset);

        _handlePermit(depositAsset, depositAmount, deadline, v, r, s);

        shares = _erc20Deposit(depositAsset, depositAmount, minimumMint, msg.sender, msg.sender, asset);
        _afterPublicDeposit(msg.sender, depositAsset, depositAmount, shares, shareLockPeriod);
    }

    /**
     * @notice Allows on ramp role to deposit into this contract.
     * @dev Does NOT support native deposits.
     * @dev Callable by SOLVER_ROLE.
     */
    function bulkDeposit(ERC20 depositAsset, uint256 depositAmount, uint256 minimumMint, address to)
        external
        requiresAuth
        nonReentrant
        returns (uint256 shares)
    {
        Asset memory asset = _beforeDeposit(depositAsset);

        shares = _erc20Deposit(depositAsset, depositAmount, minimumMint, msg.sender, to, asset);
        emit BulkDeposit(address(depositAsset), depositAmount);
    }

    /**
     * @notice Allows off ramp role to withdraw from this contract.
     * @dev Callable by SOLVER_ROLE.
     */
    function bulkWithdraw(ERC20 withdrawAsset, uint256 shareAmount, uint256 minimumAssets, address to)
        external
        requiresAuth
        returns (uint256 assetsOut)
    {
        if (isPaused) revert TellerWithMultiAssetSupport__Paused();
        Asset memory asset = assetData[withdrawAsset];
        if (!asset.allowWithdraws) revert TellerWithMultiAssetSupport__AssetNotSupported();

        if (shareAmount == 0) revert TellerWithMultiAssetSupport__ZeroShares();
        assetsOut = shareAmount.mulDivDown(accountant.getRateInQuoteSafe(withdrawAsset), ONE_SHARE);
        if (assetsOut < minimumAssets) revert TellerWithMultiAssetSupport__MinimumAssetsNotMet();
        vault.exit(to, withdrawAsset, assetsOut, msg.sender, shareAmount);
        emit BulkWithdraw(address(withdrawAsset), shareAmount);
    }

    // ========================================= INTERNAL HELPER FUNCTIONS =========================================

    /**
     * @notice Implements a common ERC20 deposit into BoringVault.
     */
    function _erc20Deposit(
        ERC20 depositAsset,
        uint256 depositAmount,
        uint256 minimumMint,
        address from,
        address to,
        Asset memory asset
    ) internal returns (uint256 shares) {
        if (depositAmount == 0) revert TellerWithMultiAssetSupport__ZeroAssets();
        shares = depositAmount.mulDivDown(ONE_SHARE, accountant.getRateInQuoteSafe(depositAsset));
        shares = asset.sharePremium > 0 ? shares.mulDivDown(1e4 - asset.sharePremium, 1e4) : shares;
        if (shares < minimumMint) revert TellerWithMultiAssetSupport__MinimumMintNotMet();
        vault.enter(from, depositAsset, depositAmount, to, shares);
    }

    /**
     * @notice Handle pre-deposit checks.
     */
    function _beforeDeposit(ERC20 depositAsset) internal view returns (Asset memory asset) {
        if (isPaused) revert TellerWithMultiAssetSupport__Paused();
        asset = assetData[depositAsset];
        if (!asset.allowDeposits) revert TellerWithMultiAssetSupport__AssetNotSupported();
    }

    /**
     * @notice Handle share lock logic, and event.
     */
    function _afterPublicDeposit(
        address user,
        ERC20 depositAsset,
        uint256 depositAmount,
        uint256 shares,
        uint256 currentShareLockPeriod
    ) internal {
        // Increment then assign as its slightly more gas efficient.
        uint256 nonce = ++depositNonce;
        // Only set share unlock time and history if share lock period is greater than 0.
        if (currentShareLockPeriod > 0) {
            shareUnlockTime[user] = block.timestamp + currentShareLockPeriod;
            publicDepositHistory[nonce] = keccak256(
                abi.encode(user, depositAsset, depositAmount, shares, block.timestamp, currentShareLockPeriod)
            );
        }
        emit Deposit(nonce, user, address(depositAsset), depositAmount, shares, block.timestamp, currentShareLockPeriod);
    }

    /**
     * @notice Handle permit logic.
     */
    function _handlePermit(ERC20 depositAsset, uint256 depositAmount, uint256 deadline, uint8 v, bytes32 r, bytes32 s)
        internal
    {
        try depositAsset.permit(msg.sender, address(vault), depositAmount, deadline, v, r, s) {}
        catch {
            if (depositAsset.allowance(msg.sender, address(vault)) < depositAmount) {
                revert TellerWithMultiAssetSupport__PermitFailedAndAllowanceTooLow();
            }
        }
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.0;

library MessageLib {
    error MessageLib__ShareAmountOverflow();

    uint256 internal constant MAX_SHARE_AMOUNT = type(uint96).max;

    /**
     * @notice Messages are transferred between chains as uint256
     *         The first 96 bits are the share amount.
     *         The remaining 160 bits are the address to send the shares to.
     * @dev Using a uint256 was chosen because most bridging protocols charge based off the number of
     *      bytes sent, and packing a uint256 in this way caps it at 32 bytes.
     */
    struct Message {
        uint256 shareAmount; // The amount of shares to bridge.
        address to;
    }

    /**
     * @notice Extracts a Message from a uint256.
     */
    function uint256ToMessage(uint256 b) internal pure returns (Message memory m) {
        m.shareAmount = uint96(b >> 160);
        m.to = address(uint160(b));
    }

    /**
     * @notice Packs a Message into a uint256.
     */
    function messageToUint256(Message memory m) internal pure returns (uint256 b) {
        if (m.shareAmount > MAX_SHARE_AMOUNT) revert MessageLib__ShareAmountOverflow();

        b |= m.shareAmount << 160;
        b |= uint160(m.to);
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import {SafeTransferLib, ERC20} from "@solmate/utils/SafeTransferLib.sol";
import {
    MessagingParams,
    MessagingFee,
    MessagingReceipt
} from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";
import {OAppAuthCore} from "./OAppAuthCore.sol";

/**
 * @title OAppSender
 * @dev Abstract contract implementing the OAppSender functionality for sending messages to a LayerZero endpoint.
 */
abstract contract OAppAuthSender is OAppAuthCore {
    using SafeTransferLib for ERC20;

    // Custom error messages
    error NotEnoughNative(uint256 msgValue);
    error LzTokenUnavailable();

    // @dev The version of the OAppSender implementation.
    // @dev Version is bumped when changes are made to this contract.
    uint64 internal constant SENDER_VERSION = 1;

    /**
     * @notice Retrieves the OApp version information.
     * @return senderVersion The version of the OAppSender.sol contract.
     * @return receiverVersion The version of the OAppReceiver.sol contract.
     *
     * @dev Providing 0 as the default for OAppReceiver version. Indicates that the OAppReceiver is not implemented.
     * ie. this is a SEND only OApp.
     * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions
     */
    function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {
        return (SENDER_VERSION, 0);
    }

    /**
     * @dev Internal function to interact with the LayerZero EndpointV2.quote() for fee calculation.
     * @param _dstEid The destination endpoint ID.
     * @param _message The message payload.
     * @param _options Additional options for the message.
     * @param _payInLzToken Flag indicating whether to pay the fee in LZ tokens.
     * @return fee The calculated MessagingFee for the message.
     *      - nativeFee: The native fee for the message.
     *      - lzTokenFee: The LZ token fee for the message.
     */
    function _quote(uint32 _dstEid, bytes memory _message, bytes memory _options, bool _payInLzToken)
        internal
        view
        virtual
        returns (MessagingFee memory fee)
    {
        return endpoint.quote(
            MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _payInLzToken), address(this)
        );
    }

    /**
     * @dev Internal function to interact with the LayerZero EndpointV2.send() for sending a message.
     * @param _dstEid The destination endpoint ID.
     * @param _message The message payload.
     * @param _options Additional options for the message.
     * @param _fee The calculated LayerZero fee for the message.
     *      - nativeFee: The native fee.
     *      - lzTokenFee: The lzToken fee.
     * @param _refundAddress The address to receive any excess fee values sent to the endpoint.
     * @return receipt The receipt for the sent message.
     *      - guid: The unique identifier for the sent message.
     *      - nonce: The nonce of the sent message.
     *      - fee: The LayerZero fee incurred for the message.
     */
    function _lzSend(
        uint32 _dstEid,
        bytes memory _message,
        bytes memory _options,
        MessagingFee memory _fee,
        address _refundAddress
    ) internal virtual returns (MessagingReceipt memory receipt) {
        // @dev Push corresponding fees to the endpoint, any excess is sent back to the _refundAddress from the endpoint.
        uint256 messageValue = _payNative(_fee.nativeFee);
        if (_fee.lzTokenFee > 0) _payLzToken(_fee.lzTokenFee);

        return endpoint
            // solhint-disable-next-line check-send-result
            .send{value: messageValue}(
            MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _fee.lzTokenFee > 0), _refundAddress
        );
    }

    /**
     * @dev Internal function to pay the native fee associated with the message.
     * @param _nativeFee The native fee to be paid.
     * @return nativeFee The amount of native currency paid.
     *
     * @dev If the OApp needs to initiate MULTIPLE LayerZero messages in a single transaction,
     * this will need to be overridden because msg.value would contain multiple lzFees.
     * @dev Should be overridden in the event the LayerZero endpoint requires a different native currency.
     * @dev Some EVMs use an ERC20 as a method for paying transactions/gasFees.
     * @dev The endpoint is EITHER/OR, ie. it will NOT support both types of native payment at a time.
     */
    function _payNative(uint256 _nativeFee) internal virtual returns (uint256 nativeFee) {
        if (msg.value != _nativeFee) revert NotEnoughNative(msg.value);
        return _nativeFee;
    }

    /**
     * @dev Internal function to pay the LZ token fee associated with the message.
     * @param _lzTokenFee The LZ token fee to be paid.
     *
     * @dev If the caller is trying to pay in the specified lzToken, then the lzTokenFee is passed to the endpoint.
     * @dev Any excess sent, is passed back to the specified _refundAddress in the _lzSend().
     */
    function _payLzToken(uint256 _lzTokenFee) internal virtual {
        // @dev Cannot cache the token because it is not immutable in the endpoint.
        address lzToken = endpoint.lzToken();
        if (lzToken == address(0)) revert LzTokenUnavailable();

        // Pay LZ token fee by sending tokens to the endpoint.
        ERC20(lzToken).safeTransferFrom(msg.sender, address(endpoint), _lzTokenFee);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import {IOAppReceiver, Origin} from "@lz-oapp-evm/interfaces/IOAppReceiver.sol";
import {OAppAuthCore} from "./OAppAuthCore.sol";

/**
 * @title OAppReceiver
 * @dev Abstract contract implementing the ILayerZeroReceiver interface and extending OAppCore for OApp receivers.
 */
abstract contract OAppAuthReceiver is IOAppReceiver, OAppAuthCore {
    // Custom error message for when the caller is not the registered endpoint/
    error OnlyEndpoint(address addr);

    // @dev The version of the OAppReceiver implementation.
    // @dev Version is bumped when changes are made to this contract.
    uint64 internal constant RECEIVER_VERSION = 1;

    /**
     * @notice Retrieves the OApp version information.
     * @return senderVersion The version of the OAppSender.sol contract.
     * @return receiverVersion The version of the OAppReceiver.sol contract.
     *
     * @dev Providing 0 as the default for OAppSender version. Indicates that the OAppSender is not implemented.
     * ie. this is a RECEIVE only OApp.
     * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions.
     */
    function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {
        return (0, RECEIVER_VERSION);
    }

    /**
     * @notice Retrieves the address responsible for 'sending' composeMsg's to the Endpoint.
     * @return sender The address responsible for 'sending' composeMsg's to the Endpoint.
     *
     * @dev Applications can optionally choose to implement a separate composeMsg sender that is NOT the bridging layer.
     * @dev The default sender IS the OApp implementer.
     */
    function composeMsgSender() public view virtual returns (address sender) {
        return address(this);
    }

    /**
     * @notice Checks if the path initialization is allowed based on the provided origin.
     * @param origin The origin information containing the source endpoint and sender address.
     * @return Whether the path has been initialized.
     *
     * @dev This indicates to the endpoint that the OApp has enabled msgs for this particular path to be received.
     * @dev This defaults to assuming if a peer has been set, its initialized.
     * Can be overridden by the OApp if there is other logic to determine this.
     */
    function allowInitializePath(Origin calldata origin) public view virtual returns (bool) {
        return peers[origin.srcEid] == origin.sender;
    }

    /**
     * @notice Retrieves the next nonce for a given source endpoint and sender address.
     * @dev _srcEid The source endpoint ID.
     * @dev _sender The sender address.
     * @return nonce The next nonce.
     *
     * @dev The path nonce starts from 1. If 0 is returned it means that there is NO nonce ordered enforcement.
     * @dev Is required by the off-chain executor to determine the OApp expects msg execution is ordered.
     * @dev This is also enforced by the OApp.
     * @dev By default this is NOT enabled. ie. nextNonce is hardcoded to return 0.
     */
    function nextNonce(uint32, /*_srcEid*/ bytes32 /*_sender*/ ) public view virtual returns (uint64 nonce) {
        return 0;
    }

    /**
     * @dev Entry point for receiving messages or packets from the endpoint.
     * @param _origin The origin information containing the source endpoint and sender address.
     *  - srcEid: The source chain endpoint ID.
     *  - sender: The sender address on the src chain.
     *  - nonce: The nonce of the message.
     * @param _guid The unique identifier for the received LayerZero message.
     * @param _message The payload of the received message.
     * @param _executor The address of the executor for the received message.
     * @param _extraData Additional arbitrary data provided by the corresponding executor.
     *
     * @dev Entry point for receiving msg/packet from the LayerZero endpoint.
     */
    function lzReceive(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) public payable virtual {
        // Ensures that only the endpoint can attempt to lzReceive() messages to this OApp.
        if (address(endpoint) != msg.sender) revert OnlyEndpoint(msg.sender);

        // Ensure that the sender matches the expected peer for the source endpoint.
        if (_getPeerOrRevert(_origin.srcEid) != _origin.sender) revert OnlyPeer(_origin.srcEid, _origin.sender);

        // Call the internal OApp implementation of lzReceive.
        _lzReceive(_origin, _guid, _message, _executor, _extraData);
    }

    /**
     * @dev Internal function to implement lzReceive logic without needing to copy the basic parameter validation.
     */
    function _lzReceive(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) internal virtual;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import {Auth, Authority} from "@solmate/auth/Auth.sol";
import {IOAppCore, ILayerZeroEndpointV2} from "@lz-oapp-evm/interfaces/IOAppCore.sol";

/**
 * @title OAppCore
 * @dev Abstract contract implementing the IOAppCore interface with basic OApp configurations.
 */
abstract contract OAppAuthCore is IOAppCore, Auth {
    // The LayerZero endpoint associated with the given OApp
    ILayerZeroEndpointV2 public immutable endpoint;

    // Mapping to store peers associated with corresponding endpoints
    mapping(uint32 eid => bytes32 peer) public peers;

    /**
     * @dev Constructor to initialize the OAppCore with the provided endpoint and delegate.
     * @param _endpoint The address of the LOCAL Layer Zero endpoint.
     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
     *
     * @dev The delegate typically should be set as the owner of the contract.
     */
    constructor(address _endpoint, address _delegate) {
        endpoint = ILayerZeroEndpointV2(_endpoint);

        if (_delegate == address(0)) revert InvalidDelegate();
        endpoint.setDelegate(_delegate);
    }

    /**
     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
     * @param _eid The endpoint ID.
     * @param _peer The address of the peer to be associated with the corresponding endpoint.
     *
     * @dev Only the owner/admin of the OApp can call this function.
     * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.
     * @dev Set this to bytes32(0) to remove the peer address.
     * @dev Peer is a bytes32 to accommodate non-evm chains.
     */
    function setPeer(uint32 _eid, bytes32 _peer) public virtual requiresAuth {
        _setPeer(_eid, _peer);
    }

    /**
     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
     * @param _eid The endpoint ID.
     * @param _peer The address of the peer to be associated with the corresponding endpoint.
     *
     * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.
     * @dev Set this to bytes32(0) to remove the peer address.
     * @dev Peer is a bytes32 to accommodate non-evm chains.
     */
    function _setPeer(uint32 _eid, bytes32 _peer) internal virtual {
        peers[_eid] = _peer;
        emit PeerSet(_eid, _peer);
    }

    /**
     * @notice Internal function to get the peer address associated with a specific endpoint; reverts if NOT set.
     * ie. the peer is set to bytes32(0).
     * @param _eid The endpoint ID.
     * @return peer The address of the peer associated with the specified endpoint.
     */
    function _getPeerOrRevert(uint32 _eid) internal view virtual returns (bytes32) {
        bytes32 peer = peers[_eid];
        if (peer == bytes32(0)) revert NoPeer(_eid);
        return peer;
    }

    /**
     * @notice Sets the delegate address for the OApp.
     * @param _delegate The address of the delegate to be set.
     *
     * @dev Only the owner/admin of the OApp can call this function.
     * @dev Provides the ability for a delegate to set configs, on behalf of the OApp, directly on the Endpoint contract.
     */
    function setDelegate(address _delegate) public requiresAuth {
        endpoint.setDelegate(_delegate);
    }
}

// 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: Unlicense
/*
 * @title Solidity Bytes Arrays Utils
 * @author Gonçalo Sá <[email protected]>
 *
 * @dev Bytes tightly packed arrays utility library for ethereum contracts written in Solidity.
 *      The library lets you concatenate, slice and type cast bytes arrays both in memory and storage.
 */
pragma solidity >=0.8.0 <0.9.0;


library BytesLib {
    function concat(
        bytes memory _preBytes,
        bytes memory _postBytes
    )
        internal
        pure
        returns (bytes memory)
    {
        bytes memory tempBytes;

        assembly {
            // Get a location of some free memory and store it in tempBytes as
            // Solidity does for memory variables.
            tempBytes := mload(0x40)

            // Store the length of the first bytes array at the beginning of
            // the memory for tempBytes.
            let length := mload(_preBytes)
            mstore(tempBytes, length)

            // Maintain a memory counter for the current write location in the
            // temp bytes array by adding the 32 bytes for the array length to
            // the starting location.
            let mc := add(tempBytes, 0x20)
            // Stop copying when the memory counter reaches the length of the
            // first bytes array.
            let end := add(mc, length)

            for {
                // Initialize a copy counter to the start of the _preBytes data,
                // 32 bytes into its memory.
                let cc := add(_preBytes, 0x20)
            } lt(mc, end) {
                // Increase both counters by 32 bytes each iteration.
                mc := add(mc, 0x20)
                cc := add(cc, 0x20)
            } {
                // Write the _preBytes data into the tempBytes memory 32 bytes
                // at a time.
                mstore(mc, mload(cc))
            }

            // Add the length of _postBytes to the current length of tempBytes
            // and store it as the new length in the first 32 bytes of the
            // tempBytes memory.
            length := mload(_postBytes)
            mstore(tempBytes, add(length, mload(tempBytes)))

            // Move the memory counter back from a multiple of 0x20 to the
            // actual end of the _preBytes data.
            mc := end
            // Stop copying when the memory counter reaches the new combined
            // length of the arrays.
            end := add(mc, length)

            for {
                let cc := add(_postBytes, 0x20)
            } lt(mc, end) {
                mc := add(mc, 0x20)
                cc := add(cc, 0x20)
            } {
                mstore(mc, mload(cc))
            }

            // Update the free-memory pointer by padding our last write location
            // to 32 bytes: add 31 bytes to the end of tempBytes to move to the
            // next 32 byte block, then round down to the nearest multiple of
            // 32. If the sum of the length of the two arrays is zero then add
            // one before rounding down to leave a blank 32 bytes (the length block with 0).
            mstore(0x40, and(
              add(add(end, iszero(add(length, mload(_preBytes)))), 31),
              not(31) // Round down to the nearest 32 bytes.
            ))
        }

        return tempBytes;
    }

    function concatStorage(bytes storage _preBytes, bytes memory _postBytes) internal {
        assembly {
            // Read the first 32 bytes of _preBytes storage, which is the length
            // of the array. (We don't need to use the offset into the slot
            // because arrays use the entire slot.)
            let fslot := sload(_preBytes.slot)
            // Arrays of 31 bytes or less have an even value in their slot,
            // while longer arrays have an odd value. The actual length is
            // the slot divided by two for odd values, and the lowest order
            // byte divided by two for even values.
            // If the slot is even, bitwise and the slot with 255 and divide by
            // two to get the length. If the slot is odd, bitwise and the slot
            // with -1 and divide by two.
            let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
            let mlength := mload(_postBytes)
            let newlength := add(slength, mlength)
            // slength can contain both the length and contents of the array
            // if length < 32 bytes so let's prepare for that
            // v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
            switch add(lt(slength, 32), lt(newlength, 32))
            case 2 {
                // Since the new array still fits in the slot, we just need to
                // update the contents of the slot.
                // uint256(bytes_storage) = uint256(bytes_storage) + uint256(bytes_memory) + new_length
                sstore(
                    _preBytes.slot,
                    // all the modifications to the slot are inside this
                    // next block
                    add(
                        // we can just add to the slot contents because the
                        // bytes we want to change are the LSBs
                        fslot,
                        add(
                            mul(
                                div(
                                    // load the bytes from memory
                                    mload(add(_postBytes, 0x20)),
                                    // zero all bytes to the right
                                    exp(0x100, sub(32, mlength))
                                ),
                                // and now shift left the number of bytes to
                                // leave space for the length in the slot
                                exp(0x100, sub(32, newlength))
                            ),
                            // increase length by the double of the memory
                            // bytes length
                            mul(mlength, 2)
                        )
                    )
                )
            }
            case 1 {
                // The stored value fits in the slot, but the combined value
                // will exceed it.
                // get the keccak hash to get the contents of the array
                mstore(0x0, _preBytes.slot)
                let sc := add(keccak256(0x0, 0x20), div(slength, 32))

                // save new length
                sstore(_preBytes.slot, add(mul(newlength, 2), 1))

                // The contents of the _postBytes array start 32 bytes into
                // the structure. Our first read should obtain the `submod`
                // bytes that can fit into the unused space in the last word
                // of the stored array. To get this, we read 32 bytes starting
                // from `submod`, so the data we read overlaps with the array
                // contents by `submod` bytes. Masking the lowest-order
                // `submod` bytes allows us to add that value directly to the
                // stored value.

                let submod := sub(32, slength)
                let mc := add(_postBytes, submod)
                let end := add(_postBytes, mlength)
                let mask := sub(exp(0x100, submod), 1)

                sstore(
                    sc,
                    add(
                        and(
                            fslot,
                            0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00
                        ),
                        and(mload(mc), mask)
                    )
                )

                for {
                    mc := add(mc, 0x20)
                    sc := add(sc, 1)
                } lt(mc, end) {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } {
                    sstore(sc, mload(mc))
                }

                mask := exp(0x100, sub(mc, end))

                sstore(sc, mul(div(mload(mc), mask), mask))
            }
            default {
                // get the keccak hash to get the contents of the array
                mstore(0x0, _preBytes.slot)
                // Start copying to the last used word of the stored array.
                let sc := add(keccak256(0x0, 0x20), div(slength, 32))

                // save new length
                sstore(_preBytes.slot, add(mul(newlength, 2), 1))

                // Copy over the first `submod` bytes of the new data as in
                // case 1 above.
                let slengthmod := mod(slength, 32)
                let mlengthmod := mod(mlength, 32)
                let submod := sub(32, slengthmod)
                let mc := add(_postBytes, submod)
                let end := add(_postBytes, mlength)
                let mask := sub(exp(0x100, submod), 1)

                sstore(sc, add(sload(sc), and(mload(mc), mask)))

                for {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } lt(mc, end) {
                    sc := add(sc, 1)
                    mc := add(mc, 0x20)
                } {
                    sstore(sc, mload(mc))
                }

                mask := exp(0x100, sub(mc, end))

                sstore(sc, mul(div(mload(mc), mask), mask))
            }
        }
    }

    function slice(
        bytes memory _bytes,
        uint256 _start,
        uint256 _length
    )
        internal
        pure
        returns (bytes memory)
    {
        require(_length + 31 >= _length, "slice_overflow");
        require(_bytes.length >= _start + _length, "slice_outOfBounds");

        bytes memory tempBytes;

        assembly {
            switch iszero(_length)
            case 0 {
                // Get a location of some free memory and store it in tempBytes as
                // Solidity does for memory variables.
                tempBytes := mload(0x40)

                // The first word of the slice result is potentially a partial
                // word read from the original array. To read it, we calculate
                // the length of that partial word and start copying that many
                // bytes into the array. The first word we copy will start with
                // data we don't care about, but the last `lengthmod` bytes will
                // land at the beginning of the contents of the new array. When
                // we're done copying, we overwrite the full first word with
                // the actual length of the slice.
                let lengthmod := and(_length, 31)

                // The multiplication in the next line is necessary
                // because when slicing multiples of 32 bytes (lengthmod == 0)
                // the following copy loop was copying the origin's length
                // and then ending prematurely not copying everything it should.
                let mc := add(add(tempBytes, lengthmod), mul(0x20, iszero(lengthmod)))
                let end := add(mc, _length)

                for {
                    // The multiplication in the next line has the same exact purpose
                    // as the one above.
                    let cc := add(add(add(_bytes, lengthmod), mul(0x20, iszero(lengthmod))), _start)
                } lt(mc, end) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                    mstore(mc, mload(cc))
                }

                mstore(tempBytes, _length)

                //update free-memory pointer
                //allocating the array padded to 32 bytes like the compiler does now
                mstore(0x40, and(add(mc, 31), not(31)))
            }
            //if we want a zero-length slice let's just return a zero-length array
            default {
                tempBytes := mload(0x40)
                //zero out the 32 bytes slice we are about to return
                //we need to do it because Solidity does not garbage collect
                mstore(tempBytes, 0)

                mstore(0x40, add(tempBytes, 0x20))
            }
        }

        return tempBytes;
    }

    function toAddress(bytes memory _bytes, uint256 _start) internal pure returns (address) {
        require(_bytes.length >= _start + 20, "toAddress_outOfBounds");
        address tempAddress;

        assembly {
            tempAddress := div(mload(add(add(_bytes, 0x20), _start)), 0x1000000000000000000000000)
        }

        return tempAddress;
    }

    function toUint8(bytes memory _bytes, uint256 _start) internal pure returns (uint8) {
        require(_bytes.length >= _start + 1 , "toUint8_outOfBounds");
        uint8 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x1), _start))
        }

        return tempUint;
    }

    function toUint16(bytes memory _bytes, uint256 _start) internal pure returns (uint16) {
        require(_bytes.length >= _start + 2, "toUint16_outOfBounds");
        uint16 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x2), _start))
        }

        return tempUint;
    }

    function toUint32(bytes memory _bytes, uint256 _start) internal pure returns (uint32) {
        require(_bytes.length >= _start + 4, "toUint32_outOfBounds");
        uint32 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x4), _start))
        }

        return tempUint;
    }

    function toUint64(bytes memory _bytes, uint256 _start) internal pure returns (uint64) {
        require(_bytes.length >= _start + 8, "toUint64_outOfBounds");
        uint64 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x8), _start))
        }

        return tempUint;
    }

    function toUint96(bytes memory _bytes, uint256 _start) internal pure returns (uint96) {
        require(_bytes.length >= _start + 12, "toUint96_outOfBounds");
        uint96 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0xc), _start))
        }

        return tempUint;
    }

    function toUint128(bytes memory _bytes, uint256 _start) internal pure returns (uint128) {
        require(_bytes.length >= _start + 16, "toUint128_outOfBounds");
        uint128 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x10), _start))
        }

        return tempUint;
    }

    function toUint256(bytes memory _bytes, uint256 _start) internal pure returns (uint256) {
        require(_bytes.length >= _start + 32, "toUint256_outOfBounds");
        uint256 tempUint;

        assembly {
            tempUint := mload(add(add(_bytes, 0x20), _start))
        }

        return tempUint;
    }

    function toBytes32(bytes memory _bytes, uint256 _start) internal pure returns (bytes32) {
        require(_bytes.length >= _start + 32, "toBytes32_outOfBounds");
        bytes32 tempBytes32;

        assembly {
            tempBytes32 := mload(add(add(_bytes, 0x20), _start))
        }

        return tempBytes32;
    }

    function equal(bytes memory _preBytes, bytes memory _postBytes) internal pure returns (bool) {
        bool success = true;

        assembly {
            let length := mload(_preBytes)

            // if lengths don't match the arrays are not equal
            switch eq(length, mload(_postBytes))
            case 1 {
                // cb is a circuit breaker in the for loop since there's
                //  no said feature for inline assembly loops
                // cb = 1 - don't breaker
                // cb = 0 - break
                let cb := 1

                let mc := add(_preBytes, 0x20)
                let end := add(mc, length)

                for {
                    let cc := add(_postBytes, 0x20)
                // the next line is the loop condition:
                // while(uint256(mc < end) + cb == 2)
                } eq(add(lt(mc, end), cb), 2) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                    // if any of these checks fails then arrays are not equal
                    if iszero(eq(mload(mc), mload(cc))) {
                        // unsuccess:
                        success := 0
                        cb := 0
                    }
                }
            }
            default {
                // unsuccess:
                success := 0
            }
        }

        return success;
    }

    function equal_nonAligned(bytes memory _preBytes, bytes memory _postBytes) internal pure returns (bool) {
        bool success = true;

        assembly {
            let length := mload(_preBytes)

            // if lengths don't match the arrays are not equal
            switch eq(length, mload(_postBytes))
            case 1 {
                // cb is a circuit breaker in the for loop since there's
                //  no said feature for inline assembly loops
                // cb = 1 - don't breaker
                // cb = 0 - break
                let cb := 1

                let endMinusWord := add(_preBytes, length)
                let mc := add(_preBytes, 0x20)
                let cc := add(_postBytes, 0x20)

                for {
                // the next line is the loop condition:
                // while(uint256(mc < endWord) + cb == 2)
                } eq(add(lt(mc, endMinusWord), cb), 2) {
                    mc := add(mc, 0x20)
                    cc := add(cc, 0x20)
                } {
                    // if any of these checks fails then arrays are not equal
                    if iszero(eq(mload(mc), mload(cc))) {
                        // unsuccess:
                        success := 0
                        cb := 0
                    }
                }

                // Only if still successful
                // For <1 word tail bytes
                if gt(success, 0) {
                    // Get the remainder of length/32
                    // length % 32 = AND(length, 32 - 1)
                    let numTailBytes := and(length, 0x1f)
                    let mcRem := mload(mc)
                    let ccRem := mload(cc)
                    for {
                        let i := 0
                    // the next line is the loop condition:
                    // while(uint256(i < numTailBytes) + cb == 2)
                    } eq(add(lt(i, numTailBytes), cb), 2) {
                        i := add(i, 1)
                    } {
                        if iszero(eq(byte(i, mcRem), byte(i, ccRem))) {
                            // unsuccess:
                            success := 0
                            cb := 0
                        }
                    }
                }
            }
            default {
                // unsuccess:
                success := 0
            }
        }

        return success;
    }

    function equalStorage(
        bytes storage _preBytes,
        bytes memory _postBytes
    )
        internal
        view
        returns (bool)
    {
        bool success = true;

        assembly {
            // we know _preBytes_offset is 0
            let fslot := sload(_preBytes.slot)
            // Decode the length of the stored array like in concatStorage().
            let slength := div(and(fslot, sub(mul(0x100, iszero(and(fslot, 1))), 1)), 2)
            let mlength := mload(_postBytes)

            // if lengths don't match the arrays are not equal
            switch eq(slength, mlength)
            case 1 {
                // slength can contain both the length and contents of the array
                // if length < 32 bytes so let's prepare for that
                // v. http://solidity.readthedocs.io/en/latest/miscellaneous.html#layout-of-state-variables-in-storage
                if iszero(iszero(slength)) {
                    switch lt(slength, 32)
                    case 1 {
                        // blank the last byte which is the length
                        fslot := mul(div(fslot, 0x100), 0x100)

                        if iszero(eq(fslot, mload(add(_postBytes, 0x20)))) {
                            // unsuccess:
                            success := 0
                        }
                    }
                    default {
                        // cb is a circuit breaker in the for loop since there's
                        //  no said feature for inline assembly loops
                        // cb = 1 - don't breaker
                        // cb = 0 - break
                        let cb := 1

                        // get the keccak hash to get the contents of the array
                        mstore(0x0, _preBytes.slot)
                        let sc := keccak256(0x0, 0x20)

                        let mc := add(_postBytes, 0x20)
                        let end := add(mc, mlength)

                        // the next line is the loop condition:
                        // while(uint256(mc < end) + cb == 2)
                        for {} eq(add(lt(mc, end), cb), 2) {
                            sc := add(sc, 1)
                            mc := add(mc, 0x20)
                        } {
                            if iszero(eq(sload(sc), mload(mc))) {
                                // unsuccess:
                                success := 0
                                cb := 0
                            }
                        }
                    }
                }
            }
            default {
                // unsuccess:
                success := 0
            }
        }

        return success;
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

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

import {SafeTransferLib} from "../utils/SafeTransferLib.sol";

/// @notice Minimalist and modern Wrapped Ether implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/WETH.sol)
/// @author Inspired by WETH9 (https://github.com/dapphub/ds-weth/blob/master/src/weth9.sol)
contract WETH is ERC20("Wrapped Ether", "WETH", 18) {
    using SafeTransferLib for address;

    event Deposit(address indexed from, uint256 amount);

    event Withdrawal(address indexed to, uint256 amount);

    function deposit() public payable virtual {
        _mint(msg.sender, msg.value);

        emit Deposit(msg.sender, msg.value);
    }

    function withdraw(uint256 amount) public virtual {
        _burn(msg.sender, amount);

        emit Withdrawal(msg.sender, amount);

        msg.sender.safeTransferETH(amount);
    }

    receive() external payable virtual {
        deposit();
    }
}

/**
 * @title BoringVaultSCVersion
 * @dev This contract extends the standard BoringVault with SuperChainERC20 functionality.
 * Note that SuperChainERC20 is currently in experimental phase and not production-ready.
 * This implementation serves as a test bed for evaluating the proxy upgrade mechanism
 * for the BoringVault contract architecture.
 */

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.21;

import {Address} from "@openzeppelin/contracts/utils/Address.sol";
import {ERC721Holder} from "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol";
import {ERC1155Holder} from "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol";
import {FixedPointMathLib} from "@solmate/utils/FixedPointMathLib.sol";
import {SafeTransferLib} from "@solmate/utils/SafeTransferLib.sol";
import {ERC20} from "@solmate/tokens/ERC20.sol";
import {BeforeTransferHook} from "src/interfaces/BeforeTransferHook.sol";
import {Auth, Authority} from "@solmate/auth/Auth.sol";
import {ERC20Upgradeable} from "@openzeppelin-contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import {Initializable} from "@openzeppelin-contracts-upgradeable/proxy/utils/Initializable.sol";
import {UUPSUpgradeable} from "@openzeppelin-contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC165} from "@openzeppelin/contracts/interfaces/IERC165.sol";
import {IERC7802} from "src/interfaces/IERC7802.sol";

contract BoringVault is Auth, Initializable, ERC20Upgradeable, UUPSUpgradeable, ERC721Holder, ERC1155Holder, IERC7802 {
    using Address for address;
    using SafeTransferLib for ERC20;
    using FixedPointMathLib for uint256;

    // ========================================= STATE =========================================

    /**
     * @notice Contract responsbile for implementing `beforeTransfer`.
     */
    BeforeTransferHook public hook;

    uint8 private _decimals;

    uint256 public maxTotalSupply = 10_000_000;

    //============================== EVENTS ===============================

    event Enter(address indexed from, address indexed asset, uint256 amount, address indexed to, uint256 shares);
    event Exit(address indexed to, address indexed asset, uint256 amount, address indexed from, uint256 shares);

    //============================== ERRORS ===============================
    error NotSuperchainERC20Bridge();

    //============================== CONSTRUCTOR ===============================
    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() Auth(address(0), Authority(address(0))) {
        _disableInitializers();
    }

    function initialize(
        address _owner,
        Authority _authority,
        string memory _name,
        string memory _symbol,
        uint8 decimals_
    ) public initializer {
        __ERC20_init(_name, _symbol);
        __UUPSUpgradeable_init();
        owner = _owner;
        authority = _authority;
        _decimals = decimals_;
    }

    function _authorizeUpgrade(address newImplementation)
        internal
        override
        requiresAuth
    {}

    //============================== MANAGE ===============================

    /**
     * @notice Allows manager to make an arbitrary function call from this contract.
     * @dev Callable by MANAGER_ROLE.
     */
    function manage(address target, bytes calldata data, uint256 value)
        external
        requiresAuth
        returns (bytes memory result)
    {
        result = target.functionCallWithValue(data, value);
    }

    /**
     * @notice Allows manager to make arbitrary function calls from this contract.
     * @dev Callable by MANAGER_ROLE.
     */
    function manage(address[] calldata targets, bytes[] calldata data, uint256[] calldata values)
        external
        requiresAuth
        returns (bytes[] memory results)
    {
        uint256 targetsLength = targets.length;
        results = new bytes[](targetsLength);
        for (uint256 i; i < targetsLength; ++i) {
            results[i] = targets[i].functionCallWithValue(data[i], values[i]);
        }
    }

    //============================== ENTER ===============================

    /**
     * @notice Allows minter to mint shares, in exchange for assets.
     * @dev If assetAmount is zero, no assets are transferred in.
     * @dev Callable by MINTER_ROLE.
     */
    function enter(address from, ERC20 asset, uint256 assetAmount, address to, uint256 shareAmount)
        external
        requiresAuth
    {
        // Check if total supply would exceed max
        require(totalSupply() + shareAmount <= maxTotalSupply, "Exceeds max total supply");

        // Transfer assets in
        if (assetAmount > 0) asset.safeTransferFrom(from, address(this), assetAmount);

        // Mint shares.
        _mint(to, shareAmount);

        emit Enter(from, address(asset), assetAmount, to, shareAmount);
    }

    //============================== EXIT ===============================

    /**
     * @notice Allows burner to burn shares, in exchange for assets.
     * @dev If assetAmount is zero, no assets are transferred out.
     * @dev Callable by BURNER_ROLE.
     */
    function exit(address to, ERC20 asset, uint256 assetAmount, address from, uint256 shareAmount)
        external
        requiresAuth
    {
        // Burn shares.
        _burn(from, shareAmount);

        // Transfer assets out.
        if (assetAmount > 0) asset.safeTransfer(to, assetAmount);

        emit Exit(to, address(asset), assetAmount, from, shareAmount);
    }

    //============================== BEFORE TRANSFER HOOK ===============================
    /**
     * @notice Sets the share locker.
     * @notice If set to zero address, the share locker logic is disabled.
     * @dev Callable by OWNER_ROLE.
     */
    function setBeforeTransferHook(address _hook) external requiresAuth {
        hook = BeforeTransferHook(_hook);
    }

    /**
     * @notice Call `beforeTransferHook` passing in `from` `to`, and `msg.sender`.
     */
    function _callBeforeTransfer(address from, address to) internal view {
        if (address(hook) != address(0)) hook.beforeTransfer(from, to, msg.sender);
    }

    function transfer(address to, uint256 amount) public override returns (bool) {
        _callBeforeTransfer(msg.sender, to);
        return super.transfer(to, amount);
    }

    function transferFrom(address from, address to, uint256 amount) public override returns (bool) {
        _callBeforeTransfer(from, to);
        return super.transferFrom(from, to, amount);
    }

    //============================== SuperChainERC20 ===============================

    /// @notice Allows the SuperchainTokenBridge to mint tokens.
    /// @param _to Address to mint tokens to.
    /// @param _amount Amount of tokens to mint.
    function crosschainMint(address _to, uint256 _amount) external {
        if (msg.sender != 0x4200000000000000000000000000000000000028) revert NotSuperchainERC20Bridge();
 
        _mint(_to, _amount);
 
        emit CrosschainMint(_to, _amount, msg.sender);
    }
 
    /// @notice Allows the SuperchainTokenBridge to burn tokens.
    /// @param _from Address to burn tokens from.
    /// @param _amount Amount of tokens to burn.
    function crosschainBurn(address _from, uint256 _amount) external {
        if (msg.sender != 0x4200000000000000000000000000000000000028) revert NotSuperchainERC20Bridge();
        
        _burn(_from, _amount);
 
        emit CrosschainBurn(_from, _amount, msg.sender);
    }

    /// @inheritdoc IERC165
    function supportsInterface(bytes4 _interfaceId) public view virtual override (ERC1155Holder, IERC165)returns (bool) {
        return _interfaceId == type(IERC7802).interfaceId || _interfaceId == type(IERC20).interfaceId
            || _interfaceId == type(IERC165).interfaceId || super.supportsInterface(_interfaceId);
    }

    //============================== RECEIVE ===============================

    receive() external payable {}

    function decimals() public view override returns (uint8) {
        return _decimals;
    }

    /**
     * @notice Sets the maximum total supply of shares.
     * @dev Callable by authorized roles.
     */
    function setMaxTotalSupply(uint256 _maxTotalSupply) external requiresAuth {
        maxTotalSupply = _maxTotalSupply;
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.21;

import {FixedPointMathLib} from "@solmate/utils/FixedPointMathLib.sol";
import {IRateProvider} from "src/interfaces/IRateProvider.sol";
import {ERC20} from "@solmate/tokens/ERC20.sol";
import {SafeTransferLib} from "@solmate/utils/SafeTransferLib.sol";
import {BoringVault} from "src/base/BoringVault.sol";
import {Auth, Authority} from "@solmate/auth/Auth.sol";
import {IPausable} from "src/interfaces/IPausable.sol";

contract AccountantWithRateProviders is Auth, IRateProvider, IPausable {
    using FixedPointMathLib for uint256;
    using SafeTransferLib for ERC20;

    // ========================================= STRUCTS =========================================

    /**
     * @param payoutAddress the address `claimFees` sends fees to
     * @param highwaterMark the highest value of the BoringVault's share price
     * @param feesOwedInBase total pending fees owed in terms of base
     * @param totalSharesLastUpdate total amount of shares the last exchange rate update
     * @param exchangeRate the current exchange rate in terms of base
     * @param allowedExchangeRateChangeUpper the max allowed change to exchange rate from an update
     * @param allowedExchangeRateChangeLower the min allowed change to exchange rate from an update
     * @param lastUpdateTimestamp the block timestamp of the last exchange rate update
     * @param isPaused whether or not this contract is paused
     * @param minimumUpdateDelayInSeconds the minimum amount of time that must pass between
     *        exchange rate updates, such that the update won't trigger the contract to be paused
     * @param platformFee the platform fee
     * @param performanceFee the performance fee
     */
    struct AccountantState {
        address payoutAddress;
        uint96 highwaterMark;
        uint128 feesOwedInBase;
        uint128 totalSharesLastUpdate;
        uint96 exchangeRate;
        uint16 allowedExchangeRateChangeUpper;
        uint16 allowedExchangeRateChangeLower;
        uint64 lastUpdateTimestamp;
        bool isPaused;
        uint24 minimumUpdateDelayInSeconds;
        uint16 platformFee;
        uint16 performanceFee;
    }

    /**
     * @param isPeggedToBase whether or not the asset is 1:1 with the base asset
     * @param rateProvider the rate provider for this asset if `isPeggedToBase` is false
     */
    struct RateProviderData {
        bool isPeggedToBase;
        IRateProvider rateProvider;
    }

    // ========================================= STATE =========================================

    /**
     * @notice Store the accountant state in 3 packed slots.
     */
    AccountantState public accountantState;

    /**
     * @notice Maps ERC20s to their RateProviderData.
     */
    mapping(ERC20 => RateProviderData) public rateProviderData;

    //============================== ERRORS ===============================

    error AccountantWithRateProviders__UpperBoundTooSmall();
    error AccountantWithRateProviders__LowerBoundTooLarge();
    error AccountantWithRateProviders__PlatformFeeTooLarge();
    error AccountantWithRateProviders__PerformanceFeeTooLarge();
    error AccountantWithRateProviders__Paused();
    error AccountantWithRateProviders__ZeroFeesOwed();
    error AccountantWithRateProviders__OnlyCallableByBoringVault();
    error AccountantWithRateProviders__UpdateDelayTooLarge();
    error AccountantWithRateProviders__ExchangeRateAboveHighwaterMark();

    //============================== EVENTS ===============================

    event Paused();
    event Unpaused();
    event DelayInSecondsUpdated(uint24 oldDelay, uint24 newDelay);
    event UpperBoundUpdated(uint16 oldBound, uint16 newBound);
    event LowerBoundUpdated(uint16 oldBound, uint16 newBound);
    event PlatformFeeUpdated(uint16 oldFee, uint16 newFee);
    event PerformanceFeeUpdated(uint16 oldFee, uint16 newFee);
    event PayoutAddressUpdated(address oldPayout, address newPayout);
    event RateProviderUpdated(address asset, bool isPegged, address rateProvider);
    event ExchangeRateUpdated(uint96 oldRate, uint96 newRate, uint64 currentTime);
    event FeesClaimed(address indexed feeAsset, uint256 amount);
    event HighwaterMarkReset();

    //============================== IMMUTABLES ===============================

    /**
     * @notice The base asset rates are provided in.
     */
    ERC20 public immutable base;

    /**
     * @notice The decimals rates are provided in.
     */
    uint8 public immutable decimals;

    /**
     * @notice The BoringVault this accountant is working with.
     *         Used to determine share supply for fee calculation.
     */
    BoringVault public immutable vault;

    /**
     * @notice One share of the BoringVault.
     */
    uint256 internal immutable ONE_SHARE;

    constructor(
        address _owner,
        address _vault,
        address payoutAddress,
        uint96 startingExchangeRate,
        address _base,
        uint16 allowedExchangeRateChangeUpper,
        uint16 allowedExchangeRateChangeLower,
        uint24 minimumUpdateDelayInSeconds,
        uint16 platformFee,
        uint16 performanceFee
    ) Auth(_owner, Authority(address(0))) {
        base = ERC20(_base);
        decimals = ERC20(_base).decimals();
        vault = BoringVault(payable(_vault));
        ONE_SHARE = 10 ** vault.decimals();
        accountantState = AccountantState({
            payoutAddress: payoutAddress,
            highwaterMark: startingExchangeRate,
            feesOwedInBase: 0,
            totalSharesLastUpdate: uint128(vault.totalSupply()),
            exchangeRate: startingExchangeRate,
            allowedExchangeRateChangeUpper: allowedExchangeRateChangeUpper,
            allowedExchangeRateChangeLower: allowedExchangeRateChangeLower,
            lastUpdateTimestamp: uint64(block.timestamp),
            isPaused: false,
            minimumUpdateDelayInSeconds: minimumUpdateDelayInSeconds,
            platformFee: platformFee,
            performanceFee: performanceFee
        });
    }

    // ========================================= ADMIN FUNCTIONS =========================================
    /**
     * @notice Pause this contract, which prevents future calls to `updateExchangeRate`, and any safe rate
     *         calls will revert.
     * @dev Callable by MULTISIG_ROLE.
     */
    function pause() external requiresAuth {
        accountantState.isPaused = true;
        emit Paused();
    }

    /**
     * @notice Unpause this contract, which allows future calls to `updateExchangeRate`, and any safe rate
     *         calls will stop reverting.
     * @dev Callable by MULTISIG_ROLE.
     */
    function unpause() external requiresAuth {
        accountantState.isPaused = false;
        emit Unpaused();
    }

    /**
     * @notice Update the minimum time delay between `updateExchangeRate` calls.
     * @dev There are no input requirements, as it is possible the admin would want
     *      the exchange rate updated as frequently as needed.
     * @dev Callable by OWNER_ROLE.
     */
    function updateDelay(uint24 minimumUpdateDelayInSeconds) external requiresAuth {
        if (minimumUpdateDelayInSeconds > 14 days) revert AccountantWithRateProviders__UpdateDelayTooLarge();
        uint24 oldDelay = accountantState.minimumUpdateDelayInSeconds;
        accountantState.minimumUpdateDelayInSeconds = minimumUpdateDelayInSeconds;
        emit DelayInSecondsUpdated(oldDelay, minimumUpdateDelayInSeconds);
    }

    /**
     * @notice Update the allowed upper bound change of exchange rate between `updateExchangeRateCalls`.
     * @dev Callable by OWNER_ROLE.
     */
    function updateUpper(uint16 allowedExchangeRateChangeUpper) external requiresAuth {
        if (allowedExchangeRateChangeUpper < 1e4) revert AccountantWithRateProviders__UpperBoundTooSmall();
        uint16 oldBound = accountantState.allowedExchangeRateChangeUpper;
        accountantState.allowedExchangeRateChangeUpper = allowedExchangeRateChangeUpper;
        emit UpperBoundUpdated(oldBound, allowedExchangeRateChangeUpper);
    }

    /**
     * @notice Update the allowed lower bound change of exchange rate between `updateExchangeRateCalls`.
     * @dev Callable by OWNER_ROLE.
     */
    function updateLower(uint16 allowedExchangeRateChangeLower) external requiresAuth {
        if (allowedExchangeRateChangeLower > 1e4) revert AccountantWithRateProviders__LowerBoundTooLarge();
        uint16 oldBound = accountantState.allowedExchangeRateChangeLower;
        accountantState.allowedExchangeRateChangeLower = allowedExchangeRateChangeLower;
        emit LowerBoundUpdated(oldBound, allowedExchangeRateChangeLower);
    }

    /**
     * @notice Update the platform fee to a new value.
     * @dev Callable by OWNER_ROLE.
     */
    function updatePlatformFee(uint16 platformFee) external requiresAuth {
        if (platformFee > 0.2e4) revert AccountantWithRateProviders__PlatformFeeTooLarge();
        uint16 oldFee = accountantState.platformFee;
        accountantState.platformFee = platformFee;
        emit PlatformFeeUpdated(oldFee, platformFee);
    }

    /**
     * @notice Update the performance fee to a new value.
     * @dev Callable by OWNER_ROLE.
     */
    function updatePerformanceFee(uint16 performanceFee) external requiresAuth {
        if (performanceFee > 0.5e4) revert AccountantWithRateProviders__PerformanceFeeTooLarge();
        uint16 oldFee = accountantState.performanceFee;
        accountantState.performanceFee = performanceFee;
        emit PerformanceFeeUpdated(oldFee, performanceFee);
    }

    /**
     * @notice Update the payout address fees are sent to.
     * @dev Callable by OWNER_ROLE.
     */
    function updatePayoutAddress(address payoutAddress) external requiresAuth {
        address oldPayout = accountantState.payoutAddress;
        accountantState.payoutAddress = payoutAddress;
        emit PayoutAddressUpdated(oldPayout, payoutAddress);
    }

    /**
     * @notice Update the rate provider data for a specific `asset`.
     * @dev Rate providers must return rates in terms of `base` or
     * an asset pegged to base and they must use the same decimals
     * as `asset`.
     * @dev Callable by OWNER_ROLE.
     */
    function setRateProviderData(ERC20 asset, bool isPeggedToBase, address rateProvider) external requiresAuth {
        rateProviderData[asset] =
            RateProviderData({isPeggedToBase: isPeggedToBase, rateProvider: IRateProvider(rateProvider)});
        emit RateProviderUpdated(address(asset), isPeggedToBase, rateProvider);
    }

    /**
     * @notice Reset the highwater mark to the current exchange rate.
     * @dev Callable by OWNER_ROLE.
     */
    function resetHighwaterMark() external virtual requiresAuth {
        AccountantState storage state = accountantState;

        if (state.exchangeRate > state.highwaterMark) {
            revert AccountantWithRateProviders__ExchangeRateAboveHighwaterMark();
        }

        uint64 currentTime = uint64(block.timestamp);
        uint256 currentTotalShares = vault.totalSupply();
        _calculateFeesOwed(state, state.exchangeRate, state.exchangeRate, currentTotalShares, currentTime);
        state.totalSharesLastUpdate = uint128(currentTotalShares);
        state.highwaterMark = accountantState.exchangeRate;
        state.lastUpdateTimestamp = currentTime;

        emit HighwaterMarkReset();
    }

    // ========================================= UPDATE EXCHANGE RATE/FEES FUNCTIONS =========================================

    /**
     * @notice Updates this contract exchangeRate.
     * @dev If new exchange rate is outside of accepted bounds, or if not enough time has passed, this
     *      will pause the contract, and this function will NOT calculate fees owed.
     * @dev Callable by UPDATE_EXCHANGE_RATE_ROLE.
     */
    function updateExchangeRate(uint96 newExchangeRate) external virtual requiresAuth {
        (
            bool shouldPause,
            AccountantState storage state,
            uint64 currentTime,
            uint256 currentExchangeRate,
            uint256 currentTotalShares
        ) = _beforeUpdateExchangeRate(newExchangeRate);
        if (shouldPause) {
            // Instead of reverting, pause the contract. This way the exchange rate updater is able to update the exchange rate
            // to a better value, and pause it.
            state.isPaused = true;
        } else {
            _calculateFeesOwed(state, newExchangeRate, currentExchangeRate, currentTotalShares, currentTime);
        }

        newExchangeRate = _setExchangeRate(newExchangeRate, state);
        state.totalSharesLastUpdate = uint128(currentTotalShares);
        state.lastUpdateTimestamp = currentTime;

        emit ExchangeRateUpdated(uint96(currentExchangeRate), newExchangeRate, currentTime);
    }

    /**
     * @notice Claim pending fees.
     * @dev This function must be called by the BoringVault.
     * @dev This function will lose precision if the exchange rate
     *      decimals is greater than the feeAsset's decimals.
     */
    function claimFees(ERC20 feeAsset) external {
        if (msg.sender != address(vault)) revert AccountantWithRateProviders__OnlyCallableByBoringVault();

        AccountantState storage state = accountantState;
        if (state.isPaused) revert AccountantWithRateProviders__Paused();
        if (state.feesOwedInBase == 0) revert AccountantWithRateProviders__ZeroFeesOwed();

        // Determine amount of fees owed in feeAsset.
        uint256 feesOwedInFeeAsset;
        RateProviderData memory data = rateProviderData[feeAsset];
        if (address(feeAsset) == address(base)) {
            feesOwedInFeeAsset = state.feesOwedInBase;
        } else {
            uint8 feeAssetDecimals = ERC20(feeAsset).decimals();
            uint256 feesOwedInBaseUsingFeeAssetDecimals =
                _changeDecimals(state.feesOwedInBase, decimals, feeAssetDecimals);
            if (data.isPeggedToBase) {
                feesOwedInFeeAsset = feesOwedInBaseUsingFeeAssetDecimals;
            } else {
                uint256 rate = data.rateProvider.getRate();
                feesOwedInFeeAsset = feesOwedInBaseUsingFeeAssetDecimals.mulDivDown(10 ** feeAssetDecimals, rate);
            }
        }
        // Zero out fees owed.
        state.feesOwedInBase = 0;
        // Transfer fee asset to payout address.
        feeAsset.safeTransferFrom(msg.sender, state.payoutAddress, feesOwedInFeeAsset);

        emit FeesClaimed(address(feeAsset), feesOwedInFeeAsset);
    }

    // ========================================= VIEW FUNCTIONS =========================================

    /**
     * @notice Get this BoringVault's current rate in the base.
     */
    function getRate() public view returns (uint256 rate) {
        rate = accountantState.exchangeRate;
    }

    /**
     * @notice Get this BoringVault's current rate in the base.
     * @dev Revert if paused.
     */
    function getRateSafe() external view returns (uint256 rate) {
        if (accountantState.isPaused) revert AccountantWithRateProviders__Paused();
        rate = getRate();
    }

    /**
     * @notice Get this BoringVault's current rate in the provided quote.
     * @dev `quote` must have its RateProviderData set, else this will revert.
     * @dev This function will lose precision if the exchange rate
     *      decimals is greater than the quote's decimals.
     */
    function getRateInQuote(ERC20 quote) public view returns (uint256 rateInQuote) {
        if (address(quote) == address(base)) {
            rateInQuote = accountantState.exchangeRate;
        } else {
            RateProviderData memory data = rateProviderData[quote];
            uint8 quoteDecimals = ERC20(quote).decimals();
            uint256 exchangeRateInQuoteDecimals = _changeDecimals(accountantState.exchangeRate, decimals, quoteDecimals);
            if (data.isPeggedToBase) {
                rateInQuote = exchangeRateInQuoteDecimals;
            } else {
                uint256 quoteRate = data.rateProvider.getRate();
                uint256 oneQuote = 10 ** quoteDecimals;
                rateInQuote = oneQuote.mulDivDown(exchangeRateInQuoteDecimals, quoteRate);
            }
        }
    }

    /**
     * @notice Get this BoringVault's current rate in the provided quote.
     * @dev `quote` must have its RateProviderData set, else this will revert.
     * @dev Revert if paused.
     */
    function getRateInQuoteSafe(ERC20 quote) external view returns (uint256 rateInQuote) {
        if (accountantState.isPaused) revert AccountantWithRateProviders__Paused();
        rateInQuote = getRateInQuote(quote);
    }

    /**
     * @notice Preview the result of an update to the exchange rate.
     * @return updateWillPause Whether the update will pause the contract.
     * @return newFeesOwedInBase The new fees owed in base.
     * @return totalFeesOwedInBase The total fees owed in base.
     */
    function previewUpdateExchangeRate(uint96 newExchangeRate)
        external
        view
        virtual
        returns (bool updateWillPause, uint256 newFeesOwedInBase, uint256 totalFeesOwedInBase)
    {
        (
            bool shouldPause,
            AccountantState storage state,
            uint64 currentTime,
            uint256 currentExchangeRate,
            uint256 currentTotalShares
        ) = _beforeUpdateExchangeRate(newExchangeRate);
        updateWillPause = shouldPause;
        totalFeesOwedInBase = state.feesOwedInBase;
        if (!shouldPause) {
            (uint256 platformFeesOwedInBase, uint256 shareSupplyToUse) = _calculatePlatformFee(
                state.totalSharesLastUpdate,
                state.lastUpdateTimestamp,
                state.platformFee,
                newExchangeRate,
                currentExchangeRate,
                currentTotalShares,
                currentTime
            );

            uint256 performanceFeesOwedInBase;
            if (newExchangeRate > state.highwaterMark) {
                (performanceFeesOwedInBase,) = _calculatePerformanceFee(
                    newExchangeRate, shareSupplyToUse, state.highwaterMark, state.performanceFee
                );
            }
            newFeesOwedInBase = platformFeesOwedInBase + performanceFeesOwedInBase;
            totalFeesOwedInBase += newFeesOwedInBase;
        }
    }

    // ========================================= INTERNAL HELPER FUNCTIONS =========================================
    /**
     * @notice Used to change the decimals of precision used for an amount.
     */
    function _changeDecimals(uint256 amount, uint8 fromDecimals, uint8 toDecimals) internal pure returns (uint256) {
        if (fromDecimals == toDecimals) {
            return amount;
        } else if (fromDecimals < toDecimals) {
            return amount * 10 ** (toDecimals - fromDecimals);
        } else {
            return amount / 10 ** (fromDecimals - toDecimals);
        }
    }

    /**
     * @notice Check if the new exchange rate is outside of the allowed bounds or if not enough time has passed.
     */
    function _beforeUpdateExchangeRate(uint96 newExchangeRate)
        internal
        view
        returns (
            bool shouldPause,
            AccountantState storage state,
            uint64 currentTime,
            uint256 currentExchangeRate,
            uint256 currentTotalShares
        )
    {
        state = accountantState;
        if (state.isPaused) revert AccountantWithRateProviders__Paused();
        currentTime = uint64(block.timestamp);
        currentExchangeRate = state.exchangeRate;
        currentTotalShares = vault.totalSupply();
        shouldPause = currentTime < state.lastUpdateTimestamp + state.minimumUpdateDelayInSeconds
            || newExchangeRate > currentExchangeRate.mulDivDown(state.allowedExchangeRateChangeUpper, 1e4)
            || newExchangeRate < currentExchangeRate.mulDivDown(state.allowedExchangeRateChangeLower, 1e4);
    }

    /**
     * @notice Set the exchange rate.
     */
    function _setExchangeRate(uint96 newExchangeRate, AccountantState storage state)
        internal
        virtual
        returns (uint96)
    {
        state.exchangeRate = newExchangeRate;
        return newExchangeRate;
    }

    /**
     * @notice Calculate platform fees.
     */
    function _calculatePlatformFee(
        uint128 totalSharesLastUpdate,
        uint64 lastUpdateTimestamp,
        uint16 platformFee,
        uint96 newExchangeRate,
        uint256 currentExchangeRate,
        uint256 currentTotalShares,
        uint64 currentTime
    ) internal view returns (uint256 platformFeesOwedInBase, uint256 shareSupplyToUse) {
        shareSupplyToUse = currentTotalShares;
        // Use the minimum between current total supply and total supply for last update.
        if (totalSharesLastUpdate < shareSupplyToUse) {
            shareSupplyToUse = totalSharesLastUpdate;
        }

        // Determine platform fees owned.
        if (platformFee > 0) {
            uint256 timeDelta = currentTime - lastUpdateTimestamp;
            uint256 minimumAssets = newExchangeRate > currentExchangeRate
                ? shareSupplyToUse.mulDivDown(currentExchangeRate, ONE_SHARE)
                : shareSupplyToUse.mulDivDown(newExchangeRate, ONE_SHARE);
            uint256 platformFeesAnnual = minimumAssets.mulDivDown(platformFee, 1e4);
            platformFeesOwedInBase = platformFeesAnnual.mulDivDown(timeDelta, 365 days);
        }
    }

    /**
     * @notice Calculate performance fees.
     */
    function _calculatePerformanceFee(
        uint96 newExchangeRate,
        uint256 shareSupplyToUse,
        uint96 datum,
        uint16 performanceFee
    ) internal view returns (uint256 performanceFeesOwedInBase, uint256 yieldEarned) {
        uint256 changeInExchangeRate = newExchangeRate - datum;
        yieldEarned = changeInExchangeRate.mulDivDown(shareSupplyToUse, ONE_SHARE);
        if (performanceFee > 0) {
            performanceFeesOwedInBase = yieldEarned.mulDivDown(performanceFee, 1e4);
        }
    }

    /**
     * @notice Calculate fees owed in base.
     * @dev This function will update the highwater mark if the new exchange rate is higher.
     */
    function _calculateFeesOwed(
        AccountantState storage state,
        uint96 newExchangeRate,
        uint256 currentExchangeRate,
        uint256 currentTotalShares,
        uint64 currentTime
    ) internal virtual {
        // Only update fees if we are not paused.
        // Update fee accounting.
        (uint256 newFeesOwedInBase, uint256 shareSupplyToUse) = _calculatePlatformFee(
            state.totalSharesLastUpdate,
            state.lastUpdateTimestamp,
            state.platformFee,
            newExchangeRate,
            currentExchangeRate,
            currentTotalShares,
            currentTime
        );

        // Account for performance fees.
        if (newExchangeRate > state.highwaterMark) {
            (uint256 performanceFeesOwedInBase,) =
                _calculatePerformanceFee(newExchangeRate, shareSupplyToUse, state.highwaterMark, state.performanceFee);

            // Add performance fees to fees owed.
            newFeesOwedInBase += performanceFeesOwedInBase;

            // Always update the highwater mark if the new exchange rate is higher.
            // This way if we are not iniitiall taking performance fees, we can start taking them
            // without back charging them on past performance.
            state.highwaterMark = newExchangeRate;
        }

        state.feesOwedInBase += uint128(newFeesOwedInBase);
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Arithmetic library with operations for fixed-point numbers.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/FixedPointMathLib.sol)
/// @author Inspired by USM (https://github.com/usmfum/USM/blob/master/contracts/WadMath.sol)
library FixedPointMathLib {
    /*//////////////////////////////////////////////////////////////
                    SIMPLIFIED FIXED POINT OPERATIONS
    //////////////////////////////////////////////////////////////*/

    uint256 internal constant MAX_UINT256 = 2**256 - 1;

    uint256 internal constant WAD = 1e18; // The scalar of ETH and most ERC20s.

    function mulWadDown(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivDown(x, y, WAD); // Equivalent to (x * y) / WAD rounded down.
    }

    function mulWadUp(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivUp(x, y, WAD); // Equivalent to (x * y) / WAD rounded up.
    }

    function divWadDown(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivDown(x, WAD, y); // Equivalent to (x * WAD) / y rounded down.
    }

    function divWadUp(uint256 x, uint256 y) internal pure returns (uint256) {
        return mulDivUp(x, WAD, y); // Equivalent to (x * WAD) / y rounded up.
    }

    /*//////////////////////////////////////////////////////////////
                    LOW LEVEL FIXED POINT OPERATIONS
    //////////////////////////////////////////////////////////////*/

    function mulDivDown(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to require(denominator != 0 && (y == 0 || x <= type(uint256).max / y))
            if iszero(mul(denominator, iszero(mul(y, gt(x, div(MAX_UINT256, y)))))) {
                revert(0, 0)
            }

            // Divide x * y by the denominator.
            z := div(mul(x, y), denominator)
        }
    }

    function mulDivUp(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Equivalent to require(denominator != 0 && (y == 0 || x <= type(uint256).max / y))
            if iszero(mul(denominator, iszero(mul(y, gt(x, div(MAX_UINT256, y)))))) {
                revert(0, 0)
            }

            // If x * y modulo the denominator is strictly greater than 0,
            // 1 is added to round up the division of x * y by the denominator.
            z := add(gt(mod(mul(x, y), denominator), 0), div(mul(x, y), denominator))
        }
    }

    function rpow(
        uint256 x,
        uint256 n,
        uint256 scalar
    ) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            switch x
            case 0 {
                switch n
                case 0 {
                    // 0 ** 0 = 1
                    z := scalar
                }
                default {
                    // 0 ** n = 0
                    z := 0
                }
            }
            default {
                switch mod(n, 2)
                case 0 {
                    // If n is even, store scalar in z for now.
                    z := scalar
                }
                default {
                    // If n is odd, store x in z for now.
                    z := x
                }

                // Shifting right by 1 is like dividing by 2.
                let half := shr(1, scalar)

                for {
                    // Shift n right by 1 before looping to halve it.
                    n := shr(1, n)
                } n {
                    // Shift n right by 1 each iteration to halve it.
                    n := shr(1, n)
                } {
                    // Revert immediately if x ** 2 would overflow.
                    // Equivalent to iszero(eq(div(xx, x), x)) here.
                    if shr(128, x) {
                        revert(0, 0)
                    }

                    // Store x squared.
                    let xx := mul(x, x)

                    // Round to the nearest number.
                    let xxRound := add(xx, half)

                    // Revert if xx + half overflowed.
                    if lt(xxRound, xx) {
                        revert(0, 0)
                    }

                    // Set x to scaled xxRound.
                    x := div(xxRound, scalar)

                    // If n is even:
                    if mod(n, 2) {
                        // Compute z * x.
                        let zx := mul(z, x)

                        // If z * x overflowed:
                        if iszero(eq(div(zx, x), z)) {
                            // Revert if x is non-zero.
                            if iszero(iszero(x)) {
                                revert(0, 0)
                            }
                        }

                        // Round to the nearest number.
                        let zxRound := add(zx, half)

                        // Revert if zx + half overflowed.
                        if lt(zxRound, zx) {
                            revert(0, 0)
                        }

                        // Return properly scaled zxRound.
                        z := div(zxRound, scalar)
                    }
                }
            }
        }
    }

    /*//////////////////////////////////////////////////////////////
                        GENERAL NUMBER UTILITIES
    //////////////////////////////////////////////////////////////*/

    function sqrt(uint256 x) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            let y := x // We start y at x, which will help us make our initial estimate.

            z := 181 // The "correct" value is 1, but this saves a multiplication later.

            // This segment is to get a reasonable initial estimate for the Babylonian method. With a bad
            // start, the correct # of bits increases ~linearly each iteration instead of ~quadratically.

            // We check y >= 2^(k + 8) but shift right by k bits
            // each branch to ensure that if x >= 256, then y >= 256.
            if iszero(lt(y, 0x10000000000000000000000000000000000)) {
                y := shr(128, y)
                z := shl(64, z)
            }
            if iszero(lt(y, 0x1000000000000000000)) {
                y := shr(64, y)
                z := shl(32, z)
            }
            if iszero(lt(y, 0x10000000000)) {
                y := shr(32, y)
                z := shl(16, z)
            }
            if iszero(lt(y, 0x1000000)) {
                y := shr(16, y)
                z := shl(8, z)
            }

            // Goal was to get z*z*y within a small factor of x. More iterations could
            // get y in a tighter range. Currently, we will have y in [256, 256*2^16).
            // We ensured y >= 256 so that the relative difference between y and y+1 is small.
            // That's not possible if x < 256 but we can just verify those cases exhaustively.

            // Now, z*z*y <= x < z*z*(y+1), and y <= 2^(16+8), and either y >= 256, or x < 256.
            // Correctness can be checked exhaustively for x < 256, so we assume y >= 256.
            // Then z*sqrt(y) is within sqrt(257)/sqrt(256) of sqrt(x), or about 20bps.

            // For s in the range [1/256, 256], the estimate f(s) = (181/1024) * (s+1) is in the range
            // (1/2.84 * sqrt(s), 2.84 * sqrt(s)), with largest error when s = 1 and when s = 256 or 1/256.

            // Since y is in [256, 256*2^16), let a = y/65536, so that a is in [1/256, 256). Then we can estimate
            // sqrt(y) using sqrt(65536) * 181/1024 * (a + 1) = 181/4 * (y + 65536)/65536 = 181 * (y + 65536)/2^18.

            // There is no overflow risk here since y < 2^136 after the first branch above.
            z := shr(18, mul(z, add(y, 65536))) // A mul() is saved from starting z at 181.

            // Given the worst case multiplicative error of 2.84 above, 7 iterations should be enough.
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))

            // If x+1 is a perfect square, the Babylonian method cycles between
            // floor(sqrt(x)) and ceil(sqrt(x)). This statement ensures we return floor.
            // See: https://en.wikipedia.org/wiki/Integer_square_root#Using_only_integer_division
            // Since the ceil is rare, we save gas on the assignment and repeat division in the rare case.
            // If you don't care whether the floor or ceil square root is returned, you can remove this statement.
            z := sub(z, lt(div(x, z), z))
        }
    }

    function unsafeMod(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Mod x by y. Note this will return
            // 0 instead of reverting if y is zero.
            z := mod(x, y)
        }
    }

    function unsafeDiv(uint256 x, uint256 y) internal pure returns (uint256 r) {
        /// @solidity memory-safe-assembly
        assembly {
            // Divide x by y. Note this will return
            // 0 instead of reverting if y is zero.
            r := div(x, y)
        }
    }

    function unsafeDivUp(uint256 x, uint256 y) internal pure returns (uint256 z) {
        /// @solidity memory-safe-assembly
        assembly {
            // Add 1 to x * y if x % y > 0. Note this will
            // return 0 instead of reverting if y is zero.
            z := add(gt(mod(x, y), 0), div(x, y))
        }
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.21;

interface BeforeTransferHook {
    function beforeTransfer(address from, address to, address operator) external view;
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Provides a flexible and updatable auth pattern which is completely separate from application logic.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/Auth.sol)
/// @author Modified from Dappsys (https://github.com/dapphub/ds-auth/blob/master/src/auth.sol)
abstract contract Auth {
    event OwnershipTransferred(address indexed user, address indexed newOwner);

    event AuthorityUpdated(address indexed user, Authority indexed newAuthority);

    address public owner;

    Authority public authority;

    constructor(address _owner, Authority _authority) {
        owner = _owner;
        authority = _authority;

        emit OwnershipTransferred(msg.sender, _owner);
        emit AuthorityUpdated(msg.sender, _authority);
    }

    modifier requiresAuth() virtual {
        require(isAuthorized(msg.sender, msg.sig), "UNAUTHORIZED");

        _;
    }

    function isAuthorized(address user, bytes4 functionSig) internal view virtual returns (bool) {
        Authority auth = authority; // Memoizing authority saves us a warm SLOAD, around 100 gas.

        // Checking if the caller is the owner only after calling the authority saves gas in most cases, but be
        // aware that this makes protected functions uncallable even to the owner if the authority is out of order.
        return (address(auth) != address(0) && auth.canCall(user, address(this), functionSig)) || user == owner;
    }

    function setAuthority(Authority newAuthority) public virtual {
        // We check if the caller is the owner first because we want to ensure they can
        // always swap out the authority even if it's reverting or using up a lot of gas.
        require(msg.sender == owner || authority.canCall(msg.sender, address(this), msg.sig));

        authority = newAuthority;

        emit AuthorityUpdated(msg.sender, newAuthority);
    }

    function transferOwnership(address newOwner) public virtual requiresAuth {
        owner = newOwner;

        emit OwnershipTransferred(msg.sender, newOwner);
    }
}

/// @notice A generic interface for a contract which provides authorization data to an Auth instance.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/auth/Auth.sol)
/// @author Modified from Dappsys (https://github.com/dapphub/ds-auth/blob/master/src/auth.sol)
interface Authority {
    function canCall(
        address user,
        address target,
        bytes4 functionSig
    ) external view returns (bool);
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Gas optimized reentrancy protection for smart contracts.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/ReentrancyGuard.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/security/ReentrancyGuard.sol)
abstract contract ReentrancyGuard {
    uint256 private locked = 1;

    modifier nonReentrant() virtual {
        require(locked == 1, "REENTRANCY");

        locked = 2;

        _;

        locked = 1;
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.21;

interface IPausable {
    function pause() external;
    function unpause() external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import { IMessageLibManager } from "./IMessageLibManager.sol";
import { IMessagingComposer } from "./IMessagingComposer.sol";
import { IMessagingChannel } from "./IMessagingChannel.sol";
import { IMessagingContext } from "./IMessagingContext.sol";

struct MessagingParams {
    uint32 dstEid;
    bytes32 receiver;
    bytes message;
    bytes options;
    bool payInLzToken;
}

struct MessagingReceipt {
    bytes32 guid;
    uint64 nonce;
    MessagingFee fee;
}

struct MessagingFee {
    uint256 nativeFee;
    uint256 lzTokenFee;
}

struct Origin {
    uint32 srcEid;
    bytes32 sender;
    uint64 nonce;
}

interface ILayerZeroEndpointV2 is IMessageLibManager, IMessagingComposer, IMessagingChannel, IMessagingContext {
    event PacketSent(bytes encodedPayload, bytes options, address sendLibrary);

    event PacketVerified(Origin origin, address receiver, bytes32 payloadHash);

    event PacketDelivered(Origin origin, address receiver);

    event LzReceiveAlert(
        address indexed receiver,
        address indexed executor,
        Origin origin,
        bytes32 guid,
        uint256 gas,
        uint256 value,
        bytes message,
        bytes extraData,
        bytes reason
    );

    event LzTokenSet(address token);

    event DelegateSet(address sender, address delegate);

    function quote(MessagingParams calldata _params, address _sender) external view returns (MessagingFee memory);

    function send(
        MessagingParams calldata _params,
        address _refundAddress
    ) external payable returns (MessagingReceipt memory);

    function verify(Origin calldata _origin, address _receiver, bytes32 _payloadHash) external;

    function verifiable(Origin calldata _origin, address _receiver) external view returns (bool);

    function initializable(Origin calldata _origin, address _receiver) external view returns (bool);

    function lzReceive(
        Origin calldata _origin,
        address _receiver,
        bytes32 _guid,
        bytes calldata _message,
        bytes calldata _extraData
    ) external payable;

    // oapp can burn messages partially by calling this function with its own business logic if messages are verified in order
    function clear(address _oapp, Origin calldata _origin, bytes32 _guid, bytes calldata _message) external;

    function setLzToken(address _lzToken) external;

    function lzToken() external view returns (address);

    function nativeToken() external view returns (address);

    function setDelegate(address _delegate) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import { ILayerZeroReceiver, Origin } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroReceiver.sol";

interface IOAppReceiver is ILayerZeroReceiver {
    /**
     * @notice Retrieves the address responsible for 'sending' composeMsg's to the Endpoint.
     * @return sender The address responsible for 'sending' composeMsg's to the Endpoint.
     *
     * @dev Applications can optionally choose to implement a separate composeMsg sender that is NOT the bridging layer.
     * @dev The default sender IS the OApp implementer.
     */
    function composeMsgSender() external view returns (address sender);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { ILayerZeroEndpointV2 } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";

/**
 * @title IOAppCore
 */
interface IOAppCore {
    // Custom error messages
    error OnlyPeer(uint32 eid, bytes32 sender);
    error NoPeer(uint32 eid);
    error InvalidEndpointCall();
    error InvalidDelegate();

    // Event emitted when a peer (OApp) is set for a corresponding endpoint
    event PeerSet(uint32 eid, bytes32 peer);

    /**
     * @notice Retrieves the OApp version information.
     * @return senderVersion The version of the OAppSender.sol contract.
     * @return receiverVersion The version of the OAppReceiver.sol contract.
     */
    function oAppVersion() external view returns (uint64 senderVersion, uint64 receiverVersion);

    /**
     * @notice Retrieves the LayerZero endpoint associated with the OApp.
     * @return iEndpoint The LayerZero endpoint as an interface.
     */
    function endpoint() external view returns (ILayerZeroEndpointV2 iEndpoint);

    /**
     * @notice Retrieves the peer (OApp) associated with a corresponding endpoint.
     * @param _eid The endpoint ID.
     * @return peer The peer address (OApp instance) associated with the corresponding endpoint.
     */
    function peers(uint32 _eid) external view returns (bytes32 peer);

    /**
     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
     * @param _eid The endpoint ID.
     * @param _peer The address of the peer to be associated with the corresponding endpoint.
     */
    function setPeer(uint32 _eid, bytes32 _peer) external;

    /**
     * @notice Sets the delegate address for the OApp Core.
     * @param _delegate The address of the delegate to be set.
     */
    function setDelegate(address _delegate) external;
}

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

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/utils/ERC721Holder.sol)

pragma solidity ^0.8.20;

import {IERC721Receiver} from "../IERC721Receiver.sol";

/**
 * @dev Implementation of the {IERC721Receiver} interface.
 *
 * Accepts all token transfers.
 * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or
 * {IERC721-setApprovalForAll}.
 */
abstract contract ERC721Holder is IERC721Receiver {
    /**
     * @dev See {IERC721Receiver-onERC721Received}.
     *
     * Always returns `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(address, address, uint256, bytes memory) public virtual returns (bytes4) {
        return this.onERC721Received.selector;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC1155/utils/ERC1155Holder.sol)

pragma solidity ^0.8.20;

import {IERC165, ERC165} from "../../../utils/introspection/ERC165.sol";
import {IERC1155Receiver} from "../IERC1155Receiver.sol";

/**
 * @dev Simple implementation of `IERC1155Receiver` that will allow a contract to hold ERC1155 tokens.
 *
 * IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be
 * stuck.
 */
abstract contract ERC1155Holder is ERC165, IERC1155Receiver {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
    }

    function onERC1155Received(
        address,
        address,
        uint256,
        uint256,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC1155Received.selector;
    }

    function onERC1155BatchReceived(
        address,
        address,
        uint256[] memory,
        uint256[] memory,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC1155BatchReceived.selector;
    }
}

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

pragma solidity ^0.8.20;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC-20
 * applications.
 */
abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
    /// @custom:storage-location erc7201:openzeppelin.storage.ERC20
    struct ERC20Storage {
        mapping(address account => uint256) _balances;

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

        uint256 _totalSupply;

        string _name;
        string _symbol;
    }

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

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

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

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

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

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

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

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

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

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

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

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Skips emitting an {Approval} event indicating an allowance update. This is not
     * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

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

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

        emit Transfer(from, to, value);
    }

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

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

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

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

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// 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 v5.1.0) (proxy/utils/UUPSUpgradeable.sol)

pragma solidity ^0.8.20;

import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";
import {Initializable} from "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    address private immutable __self = address(this);

    /**
     * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)`
     * and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
     * while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string.
     * If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must
     * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
     * during an upgrade.
     */
    string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";

    /**
     * @dev The call is from an unauthorized context.
     */
    error UUPSUnauthorizedCallContext();

    /**
     * @dev The storage `slot` is unsupported as a UUID.
     */
    error UUPSUnsupportedProxiableUUID(bytes32 slot);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC-1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC-1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        _checkProxy();
        _;
    }

    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        _checkNotDelegated();
        _;
    }

    function __UUPSUpgradeable_init() internal onlyInitializing {
    }

    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Implementation of the ERC-1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual notDelegated returns (bytes32) {
        return ERC1967Utils.IMPLEMENTATION_SLOT;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     *
     * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data);
    }

    /**
     * @dev Reverts if the execution is not performed via delegatecall or the execution
     * context is not of a proxy with an ERC-1967 compliant implementation pointing to self.
     * See {_onlyProxy}.
     */
    function _checkProxy() internal view virtual {
        if (
            address(this) == __self || // Must be called through delegatecall
            ERC1967Utils.getImplementation() != __self // Must be called through an active proxy
        ) {
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Reverts if the execution is performed via delegatecall.
     * See {notDelegated}.
     */
    function _checkNotDelegated() internal view virtual {
        if (address(this) != __self) {
            // Must not be called through delegatecall
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;

    /**
     * @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call.
     *
     * As a security check, {proxiableUUID} is invoked in the new implementation, and the return value
     * is expected to be the implementation slot in ERC-1967.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private {
        try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
            if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) {
                revert UUPSUnsupportedProxiableUUID(slot);
            }
            ERC1967Utils.upgradeToAndCall(newImplementation, data);
        } catch {
            // The implementation is not UUPS
            revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

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

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

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

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

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.21;

import {IERC165} from "@openzeppelin/contracts/interfaces/IERC165.sol";

/// @title IERC7802
/// @notice Defines the interface for crosschain ERC20 transfers.
interface IERC7802 is IERC165 {
    /// @notice Emitted when a crosschain transfer mints tokens.
    /// @param to       Address of the account tokens are being minted for.
    /// @param amount   Amount of tokens minted.
    /// @param sender   Address of the account that finilized the crosschain transfer.
    event CrosschainMint(address indexed to, uint256 amount, address indexed sender);

    /// @notice Emitted when a crosschain transfer burns tokens.
    /// @param from     Address of the account tokens are being burned from.
    /// @param amount   Amount of tokens burned.
    /// @param sender   Address of the account that initiated the crosschain transfer.
    event CrosschainBurn(address indexed from, uint256 amount, address indexed sender);

    /// @notice Mint tokens through a crosschain transfer.
    /// @param _to     Address to mint tokens to.
    /// @param _amount Amount of tokens to mint.
    function crosschainMint(address _to, uint256 _amount) external;

    /// @notice Burn tokens through a crosschain transfer.
    /// @param _from   Address to burn tokens from.
    /// @param _amount Amount of tokens to burn.
    function crosschainBurn(address _from, uint256 _amount) external;
}

// SPDX-License-Identifier: UNLICENSED
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

pragma solidity ^0.8.0;

interface IRateProvider {
    function getRate() external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

struct SetConfigParam {
    uint32 eid;
    uint32 configType;
    bytes config;
}

interface IMessageLibManager {
    struct Timeout {
        address lib;
        uint256 expiry;
    }

    event LibraryRegistered(address newLib);
    event DefaultSendLibrarySet(uint32 eid, address newLib);
    event DefaultReceiveLibrarySet(uint32 eid, address newLib);
    event DefaultReceiveLibraryTimeoutSet(uint32 eid, address oldLib, uint256 expiry);
    event SendLibrarySet(address sender, uint32 eid, address newLib);
    event ReceiveLibrarySet(address receiver, uint32 eid, address newLib);
    event ReceiveLibraryTimeoutSet(address receiver, uint32 eid, address oldLib, uint256 timeout);

    function registerLibrary(address _lib) external;

    function isRegisteredLibrary(address _lib) external view returns (bool);

    function getRegisteredLibraries() external view returns (address[] memory);

    function setDefaultSendLibrary(uint32 _eid, address _newLib) external;

    function defaultSendLibrary(uint32 _eid) external view returns (address);

    function setDefaultReceiveLibrary(uint32 _eid, address _newLib, uint256 _timeout) external;

    function defaultReceiveLibrary(uint32 _eid) external view returns (address);

    function setDefaultReceiveLibraryTimeout(uint32 _eid, address _lib, uint256 _expiry) external;

    function defaultReceiveLibraryTimeout(uint32 _eid) external view returns (address lib, uint256 expiry);

    function isSupportedEid(uint32 _eid) external view returns (bool);

    function isValidReceiveLibrary(address _receiver, uint32 _eid, address _lib) external view returns (bool);

    /// ------------------- OApp interfaces -------------------
    function setSendLibrary(address _oapp, uint32 _eid, address _newLib) external;

    function getSendLibrary(address _sender, uint32 _eid) external view returns (address lib);

    function isDefaultSendLibrary(address _sender, uint32 _eid) external view returns (bool);

    function setReceiveLibrary(address _oapp, uint32 _eid, address _newLib, uint256 _gracePeriod) external;

    function getReceiveLibrary(address _receiver, uint32 _eid) external view returns (address lib, bool isDefault);

    function setReceiveLibraryTimeout(address _oapp, uint32 _eid, address _lib, uint256 _gracePeriod) external;

    function receiveLibraryTimeout(address _receiver, uint32 _eid) external view returns (address lib, uint256 expiry);

    function setConfig(address _oapp, address _lib, SetConfigParam[] calldata _params) external;

    function getConfig(
        address _oapp,
        address _lib,
        uint32 _eid,
        uint32 _configType
    ) external view returns (bytes memory config);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

interface IMessagingComposer {
    event ComposeSent(address from, address to, bytes32 guid, uint16 index, bytes message);
    event ComposeDelivered(address from, address to, bytes32 guid, uint16 index);
    event LzComposeAlert(
        address indexed from,
        address indexed to,
        address indexed executor,
        bytes32 guid,
        uint16 index,
        uint256 gas,
        uint256 value,
        bytes message,
        bytes extraData,
        bytes reason
    );

    function composeQueue(
        address _from,
        address _to,
        bytes32 _guid,
        uint16 _index
    ) external view returns (bytes32 messageHash);

    function sendCompose(address _to, bytes32 _guid, uint16 _index, bytes calldata _message) external;

    function lzCompose(
        address _from,
        address _to,
        bytes32 _guid,
        uint16 _index,
        bytes calldata _message,
        bytes calldata _extraData
    ) external payable;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

interface IMessagingChannel {
    event InboundNonceSkipped(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce);
    event PacketNilified(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce, bytes32 payloadHash);
    event PacketBurnt(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce, bytes32 payloadHash);

    function eid() external view returns (uint32);

    // this is an emergency function if a message cannot be verified for some reasons
    // required to provide _nextNonce to avoid race condition
    function skip(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce) external;

    function nilify(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce, bytes32 _payloadHash) external;

    function burn(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce, bytes32 _payloadHash) external;

    function nextGuid(address _sender, uint32 _dstEid, bytes32 _receiver) external view returns (bytes32);

    function inboundNonce(address _receiver, uint32 _srcEid, bytes32 _sender) external view returns (uint64);

    function outboundNonce(address _sender, uint32 _dstEid, bytes32 _receiver) external view returns (uint64);

    function inboundPayloadHash(
        address _receiver,
        uint32 _srcEid,
        bytes32 _sender,
        uint64 _nonce
    ) external view returns (bytes32);

    function lazyInboundNonce(address _receiver, uint32 _srcEid, bytes32 _sender) external view returns (uint64);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

interface IMessagingContext {
    function isSendingMessage() external view returns (bool);

    function getSendContext() external view returns (uint32 dstEid, address sender);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import { Origin } from "./ILayerZeroEndpointV2.sol";

interface ILayerZeroReceiver {
    function allowInitializePath(Origin calldata _origin) external view returns (bool);

    function nextNonce(uint32 _eid, bytes32 _sender) external view returns (uint64);

    function lzReceive(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) external payable;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.20;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be
     * reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

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

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.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 ERC165 is IERC165 {
    /**
     * @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) (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Interface that must be implemented by smart contracts in order to receive
 * ERC-1155 token transfers.
 */
interface IERC1155Receiver is IERC165 {
    /**
     * @dev Handles the receipt of a single ERC1155 token type. This function is
     * called at the end of a `safeTransferFrom` after the balance has been updated.
     *
     * NOTE: To accept the transfer, this must return
     * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
     * (i.e. 0xf23a6e61, or its own function selector).
     *
     * @param operator The address which initiated the transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param id The ID of the token being transferred
     * @param value The amount of tokens being transferred
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
     */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
     * @dev Handles the receipt of a multiple ERC1155 token types. This function
     * is called at the end of a `safeBatchTransferFrom` after the balances have
     * been updated.
     *
     * NOTE: To accept the transfer(s), this must return
     * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
     * (i.e. 0xbc197c81, or its own function selector).
     *
     * @param operator The address which initiated the batch transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param ids An array containing ids of each token being transferred (order and length must match values array)
     * @param values An array containing amounts of each token being transferred (order and length must match ids array)
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
     */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// 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) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.20;

/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)

pragma solidity ^0.8.20;

import {IBeacon} from "../beacon/IBeacon.sol";
import {Address} from "../../utils/Address.sol";
import {StorageSlot} from "../../utils/StorageSlot.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 */
library ERC1967Utils {
    // We re-declare ERC-1967 events here because they can't be used directly from IERC1967.
    // This will be fixed in Solidity 0.8.21. At that point we should remove these events.
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Emitted when the beacon is changed.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev The `implementation` of the proxy is invalid.
     */
    error ERC1967InvalidImplementation(address implementation);

    /**
     * @dev The `admin` of the proxy is invalid.
     */
    error ERC1967InvalidAdmin(address admin);

    /**
     * @dev The `beacon` of the proxy is invalid.
     */
    error ERC1967InvalidBeacon(address beacon);

    /**
     * @dev An upgrade function sees `msg.value > 0` that may be lost.
     */
    error ERC1967NonPayable();

    /**
     * @dev Returns the current implementation address.
     */
    function getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        if (newImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(newImplementation);
        }
        StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Performs implementation upgrade with additional setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);

        if (data.length > 0) {
            Address.functionDelegateCall(newImplementation, data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Returns the current admin.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using
     * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        if (newAdmin == address(0)) {
            revert ERC1967InvalidAdmin(address(0));
        }
        StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {IERC1967-AdminChanged} event.
     */
    function changeAdmin(address newAdmin) internal {
        emit AdminChanged(getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Returns the current beacon.
     */
    function getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        if (newBeacon.code.length == 0) {
            revert ERC1967InvalidBeacon(newBeacon);
        }

        StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;

        address beaconImplementation = IBeacon(newBeacon).implementation();
        if (beaconImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(beaconImplementation);
        }
    }

    /**
     * @dev Change the beacon and trigger a setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-BeaconUpgraded} event.
     *
     * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since
     * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for
     * efficiency.
     */
    function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);

        if (data.length > 0) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract
     * if an upgrade doesn't perform an initialization call.
     */
    function _checkNonPayable() private {
        if (msg.value > 0) {
            revert ERC1967NonPayable();
        }
    }
}

// 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) (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {UpgradeableBeacon} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(newImplementation.code.length > 0);
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

{
  "remappings": [
    "@solmate/=lib/solmate/src/",
    "@forge-std/=lib/forge-std/src/",
    "@ds-test/=lib/forge-std/lib/ds-test/src/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "@openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "@ccip/=lib/ccip/",
    "@oapp-auth/=lib/OAppAuth/src/",
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• No Contract Security Audit Submitted- Submit Audit Here

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