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

import {ICAppV1} from "../ICAppV1.sol";

import {InterchainTxDescriptor} from "../../libs/InterchainTransaction.sol";
import {OptionsV1} from "../../libs/Options.sol";

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

/// @notice A simple app that sends a message to the remote PingPongApp, which will respond with a message back.
/// This app can be loaded with a native asset, which will be used to pay for the messages sent.
contract PingPongApp is ICAppV1 {
    uint256 internal constant DEFAULT_GAS_LIMIT = 500_000;
    uint256 public gasLimit;

    event GasLimitSet(uint256 gasLimit);
    event PingDisrupted(uint256 counter);
    event PingReceived(uint256 counter, uint64 dbNonce, uint64 entryIndex);
    event PingSent(uint256 counter, uint64 dbNonce, uint64 entryIndex);

    constructor(address admin) ICAppV1(admin) {
        _grantRole(IC_GOVERNOR_ROLE, admin);
        _setGasLimit(DEFAULT_GAS_LIMIT);
    }

    /// @notice Enables the contract to accept native asset.
    receive() external payable {}

    /// @notice Allows the Interchain Governor to set the gas limit for the interchain messages.
    function setGasLimit(uint256 gasLimit_) external onlyRole(IC_GOVERNOR_ROLE) {
        _setGasLimit(gasLimit_);
    }

    /// @notice Allows the Admin to withdraw the native asset from the contract.
    function withdraw() external onlyRole(DEFAULT_ADMIN_ROLE) {
        Address.sendValue(payable(msg.sender), address(this).balance);
    }

    /// @notice Starts the ping-pong message exchange with the remote PingPongApp.
    function startPingPong(uint64 dstChainId, uint256 counter) external {
        // Revert if the balance is lower than the message fee.
        _sendPingPongMessage(dstChainId, counter, true);
    }

    /// @notice Returns the fee to send a single ping message to the remote PingPongApp.
    function getPingFee(uint64 dstChainId) external view returns (uint256) {
        OptionsV1 memory options = OptionsV1({gasLimit: gasLimit, gasAirdrop: 0});
        bytes memory message = abi.encode(uint256(0));
        return _getInterchainFee(dstChainId, options.encodeOptionsV1(), message.length);
    }

    /// @dev Internal logic for receiving messages. At this point the validity of the message is already checked.
    function _receiveMessage(
        uint64 srcChainId,
        bytes32, // sender
        uint64 dbNonce,
        uint64 entryIndex,
        bytes calldata message
    )
        internal
        override
    {
        uint256 counter = abi.decode(message, (uint256));
        emit PingReceived(counter, dbNonce, entryIndex);
        if (counter > 0) {
            // Don't revert if the balance is low, just stop sending messages.
            _sendPingPongMessage({dstChainId: srcChainId, counter: counter - 1, lowBalanceRevert: false});
        }
    }

    /// @dev Sends a message to the PingPongApp on the remote chain.
    /// If `counter > 0`, the remote app will respond with a message to this app, decrementing the counter.
    /// Once the counter reaches 0, the remote app will not respond.
    function _sendPingPongMessage(uint64 dstChainId, uint256 counter, bool lowBalanceRevert) internal {
        OptionsV1 memory options = OptionsV1({gasLimit: gasLimit, gasAirdrop: 0});
        bytes memory message = abi.encode(counter);
        uint256 messageFee = _getMessageFee(dstChainId, options, message.length);
        if (address(this).balance < messageFee && !lowBalanceRevert) {
            emit PingDisrupted(counter);
            return;
        }
        InterchainTxDescriptor memory desc = _sendToLinkedApp(dstChainId, messageFee, options, message);
        emit PingSent(counter, desc.dbNonce, desc.entryIndex);
    }

    /// @dev Sets the gas limit for the interchain messages.
    function _setGasLimit(uint256 gasLimit_) internal {
        gasLimit = gasLimit_;
        emit GasLimitSet(gasLimit_);
    }
}

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

import {AbstractICApp, InterchainTxDescriptor} from "./AbstractICApp.sol";

import {InterchainAppV1Events} from "../events/InterchainAppV1Events.sol";
import {IInterchainAppV1} from "../interfaces/IInterchainAppV1.sol";
import {AppConfigV1, APP_CONFIG_GUARD_DEFAULT} from "../libs/AppConfig.sol";
import {OptionsV1} from "../libs/Options.sol";
import {TypeCasts} from "../libs/TypeCasts.sol";

import {AccessControlEnumerable} from "@openzeppelin/contracts/access/extensions/AccessControlEnumerable.sol";
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";

abstract contract ICAppV1 is AbstractICApp, AccessControlEnumerable, InterchainAppV1Events, IInterchainAppV1 {
    using EnumerableSet for EnumerableSet.AddressSet;
    using TypeCasts for address;
    using TypeCasts for bytes32;

    /// @notice Role to manage the Interchain setup of the app.
    bytes32 public constant IC_GOVERNOR_ROLE = keccak256("IC_GOVERNOR_ROLE");

    /// @dev Address of the latest Interchain Client, used for sending messages.
    /// Note: packed in a single storage slot with the `_requiredResponses` and `_optimisticPeriod`.
    address private _latestClient;
    /// @dev Required responses and optimistic period for the module responses.
    uint16 private _requiredResponses;
    uint48 private _optimisticPeriod;

    /// @dev Address of the linked app deployed on the remote chain.
    mapping(uint64 chainId => bytes32 remoteApp) private _linkedApp;
    /// @dev Interchain Clients allowed to send messages to this app.
    EnumerableSet.AddressSet private _interchainClients;
    /// @dev Trusted Interchain modules.
    EnumerableSet.AddressSet private _trustedModules;
    /// @dev Execution Service to use for sending messages.
    address private _executionService;

    constructor(address admin) {
        _grantRole(DEFAULT_ADMIN_ROLE, admin);
    }

    /// @inheritdoc IInterchainAppV1
    function addInterchainClient(address client, bool updateLatest) external onlyRole(IC_GOVERNOR_ROLE) {
        _addClient(client, updateLatest);
    }

    /// @inheritdoc IInterchainAppV1
    function removeInterchainClient(address client) external onlyRole(IC_GOVERNOR_ROLE) {
        _removeClient(client);
    }

    /// @inheritdoc IInterchainAppV1
    function setLatestInterchainClient(address client) external onlyRole(IC_GOVERNOR_ROLE) {
        _setLatestClient(client);
    }

    /// @inheritdoc IInterchainAppV1
    function linkRemoteApp(uint64 chainId, bytes32 remoteApp) external onlyRole(IC_GOVERNOR_ROLE) {
        _linkRemoteApp(chainId, remoteApp);
    }

    /// @inheritdoc IInterchainAppV1
    function linkRemoteAppEVM(uint64 chainId, address remoteApp) external onlyRole(IC_GOVERNOR_ROLE) {
        _linkRemoteApp(chainId, remoteApp.addressToBytes32());
    }

    /// @inheritdoc IInterchainAppV1
    function addTrustedModule(address module) external onlyRole(IC_GOVERNOR_ROLE) {
        if (module == address(0)) {
            revert InterchainApp__ModuleZeroAddress();
        }
        bool added = _trustedModules.add(module);
        if (!added) {
            revert InterchainApp__ModuleAlreadyAdded(module);
        }
        emit TrustedModuleAdded(module);
    }

    /// @inheritdoc IInterchainAppV1
    function removeTrustedModule(address module) external onlyRole(IC_GOVERNOR_ROLE) {
        bool removed = _trustedModules.remove(module);
        if (!removed) {
            revert InterchainApp__ModuleNotAdded(module);
        }
        emit TrustedModuleRemoved(module);
    }

    /// @inheritdoc IInterchainAppV1
    function setAppConfigV1(uint256 requiredResponses, uint256 optimisticPeriod) external onlyRole(IC_GOVERNOR_ROLE) {
        if (requiredResponses == 0 || optimisticPeriod == 0) {
            revert InterchainApp__AppConfigInvalid(requiredResponses, optimisticPeriod);
        }
        _requiredResponses = SafeCast.toUint16(requiredResponses);
        _optimisticPeriod = SafeCast.toUint48(optimisticPeriod);
        emit AppConfigV1Set(requiredResponses, optimisticPeriod);
    }

    /// @inheritdoc IInterchainAppV1
    function setExecutionService(address executionService) external onlyRole(IC_GOVERNOR_ROLE) {
        _executionService = executionService;
        emit ExecutionServiceSet(executionService);
    }

    // ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════

    /// @inheritdoc IInterchainAppV1
    function getAppConfigV1() public view returns (AppConfigV1 memory) {
        (uint8 guardFlag, address guard) = _getGuardConfig();
        return AppConfigV1({
            requiredResponses: _requiredResponses,
            optimisticPeriod: _optimisticPeriod,
            guardFlag: guardFlag,
            guard: guard
        });
    }

    /// @inheritdoc IInterchainAppV1
    // solhint-disable-next-line ordering
    function getExecutionService() external view returns (address) {
        return _executionService;
    }

    /// @inheritdoc IInterchainAppV1
    function getInterchainClients() external view returns (address[] memory) {
        return _interchainClients.values();
    }

    /// @inheritdoc IInterchainAppV1
    function getLatestInterchainClient() external view returns (address) {
        return _latestClient;
    }

    /// @inheritdoc IInterchainAppV1
    function getLinkedApp(uint64 chainId) external view returns (bytes32) {
        return _linkedApp[chainId];
    }

    /// @inheritdoc IInterchainAppV1
    function getLinkedAppEVM(uint64 chainId) external view returns (address linkedAppEVM) {
        bytes32 linkedApp = _linkedApp[chainId];
        linkedAppEVM = linkedApp.bytes32ToAddress();
        if (linkedAppEVM.addressToBytes32() != linkedApp) {
            revert InterchainApp__LinkedAppNotEVM(linkedApp);
        }
    }

    /// @inheritdoc IInterchainAppV1
    function getModules() external view returns (address[] memory) {
        return _trustedModules.values();
    }

    // ═══════════════════════════════════════════ INTERNAL: MANAGEMENT ════════════════════════════════════════════════

    /// @dev Links the remote app to the current app.
    /// Will revert if the chainId is the same as the chainId of the local app.
    /// Note: Should be guarded with permissions check.
    function _linkRemoteApp(uint64 chainId, bytes32 remoteApp) internal {
        if (chainId == block.chainid) {
            revert InterchainApp__ChainIdNotRemote(chainId);
        }
        if (remoteApp == 0) {
            revert InterchainApp__RemoteAppZeroAddress();
        }
        _linkedApp[chainId] = remoteApp;
        emit AppLinked(chainId, remoteApp);
    }

    /// @dev Stores the address of the latest Interchain Client.
    /// - The exact storage location is up to the implementation.
    /// - Must NOT be called directly: use `_setLatestClient` instead.
    /// - Should not emit any events: this is done in the calling function.
    function _storeLatestClient(address client) internal override {
        _latestClient = client;
    }

    /// @dev Toggle the state of the Interchain Client (allowed/disallowed to send messages to this app).
    /// - The client is checked to be in the opposite state before the change.
    /// - The exact storage location is up to the implementation.
    /// - Must NOT be called directly: use `_addClient` and `_removeClient` instead.
    /// - Should not emit any events: this is done in the calling functions.
    function _toggleClientState(address client, bool allowed) internal override {
        if (allowed) {
            _interchainClients.add(client);
        } else {
            _interchainClients.remove(client);
        }
    }

    // ════════════════════════════════════════════ INTERNAL: MESSAGING ════════════════════════════════════════════════

    /// @dev Thin wrapper around _sendInterchainMessage to send the message to the linked app.
    function _sendToLinkedApp(
        uint64 dstChainId,
        uint256 messageFee,
        OptionsV1 memory options,
        bytes memory message
    )
        internal
        returns (InterchainTxDescriptor memory)
    {
        bytes memory encodedOptions = options.encodeOptionsV1();
        return _sendInterchainMessage(dstChainId, _linkedApp[dstChainId], messageFee, encodedOptions, message);
    }

    // ══════════════════════════════════════════════ INTERNAL VIEWS ═══════════════════════════════════════════════════

    /// @dev Returns the fee to send a message to the linked app on the remote chain.
    function _getMessageFee(
        uint64 dstChainId,
        OptionsV1 memory options,
        uint256 messageLen
    )
        internal
        view
        returns (uint256)
    {
        bytes memory encodedOptions = options.encodeOptionsV1();
        return _getInterchainFee(dstChainId, encodedOptions, messageLen);
    }

    /// @dev Returns the configuration of the app for validating the received messages.
    function _getAppConfig() internal view override returns (bytes memory) {
        return getAppConfigV1().encodeAppConfigV1();
    }

    /// @dev Returns the guard flag and address in the app config.
    /// By default, the ICApp is using the Client-provided guard, but it can be overridden in the derived contract.
    function _getGuardConfig() internal view virtual returns (uint8 guardFlag, address guard) {
        return (APP_CONFIG_GUARD_DEFAULT, address(0));
    }

    /// @dev Returns the address of the Execution Service to use for sending messages.
    function _getExecutionService() internal view override returns (address) {
        return _executionService;
    }

    /// @dev Returns the latest Interchain Client. This is the Client that is used for sending messages.
    function _getLatestClient() internal view override returns (address) {
        return _latestClient;
    }

    /// @dev Returns the list of modules to use for sending messages, as well as validating the received messages.
    function _getModules() internal view override returns (address[] memory) {
        return _trustedModules.values();
    }

    /// @dev Checks if the sender is allowed to send messages to this app.
    function _isAllowedSender(uint64 srcChainId, bytes32 sender) internal view override returns (bool) {
        return _linkedApp[srcChainId] == sender;
    }

    /// @dev Checks if the caller is an Interchain Client.
    /// Both latest and legacy Interchain Clients are allowed to call `appReceive`.
    function _isInterchainClient(address caller) internal view override returns (bool) {
        return _interchainClients.contains(caller);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import {MathLib} from "./Math.sol";
import {TypeCasts} from "./TypeCasts.sol";
import {VersionedPayloadLib} from "./VersionedPayload.sol";

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

type ICTxHeader is uint256;

struct InterchainTransaction {
    uint64 srcChainId;
    uint64 dstChainId;
    uint64 dbNonce;
    uint64 entryIndex;
    bytes32 srcSender;
    bytes32 dstReceiver;
    bytes options;
    bytes message;
}

struct InterchainTxDescriptor {
    bytes32 transactionId;
    uint64 dbNonce;
    uint64 entryIndex;
}

using InterchainTransactionLib for InterchainTransaction global;

library InterchainTransactionLib {
    using MathLib for uint256;
    using VersionedPayloadLib for bytes;

    function constructLocalTransaction(
        address srcSender,
        uint64 dstChainId,
        bytes32 dstReceiver,
        uint64 dbNonce,
        uint64 entryIndex,
        bytes memory options,
        bytes memory message
    )
        internal
        view
        returns (InterchainTransaction memory transaction)
    {
        return InterchainTransaction({
            srcChainId: SafeCast.toUint64(block.chainid),
            srcSender: TypeCasts.addressToBytes32(srcSender),
            dstChainId: dstChainId,
            dstReceiver: dstReceiver,
            dbNonce: dbNonce,
            entryIndex: entryIndex,
            options: options,
            message: message
        });
    }

    function encodeTransaction(InterchainTransaction memory transaction) internal pure returns (bytes memory) {
        return abi.encode(
            encodeTxHeader(transaction.srcChainId, transaction.dstChainId, transaction.dbNonce, transaction.entryIndex),
            transaction.srcSender,
            transaction.dstReceiver,
            transaction.options,
            transaction.message
        );
    }

    function decodeTransaction(bytes calldata transaction) internal pure returns (InterchainTransaction memory icTx) {
        ICTxHeader header;
        (header, icTx.srcSender, icTx.dstReceiver, icTx.options, icTx.message) =
            abi.decode(transaction, (ICTxHeader, bytes32, bytes32, bytes, bytes));
        (icTx.srcChainId, icTx.dstChainId, icTx.dbNonce, icTx.entryIndex) = decodeTxHeader(header);
    }

    function payloadSize(uint256 optionsLen, uint256 messageLen) internal pure returns (uint256) {
        // 2 bytes are reserved for the transaction version
        // + 5 fields * 32 bytes (3 values for static, 2 offsets for dynamic) + 2 * 32 bytes (lengths for dynamic) = 226
        // (srcChainId, dstChainId, dbNonce, entryIndex) are merged into a single 32 bytes field
        // Both options and message are dynamic fields, which are padded up to 32 bytes
        return 226 + optionsLen.roundUpToWord() + messageLen.roundUpToWord();
    }

    function encodeTxHeader(
        uint64 srcChainId,
        uint64 dstChainId,
        uint64 dbNonce,
        uint64 entryIndex
    )
        internal
        pure
        returns (ICTxHeader)
    {
        return ICTxHeader.wrap(
            (uint256(srcChainId) << 192) | (uint256(dstChainId) << 128) | (uint256(dbNonce) << 64) | uint256(entryIndex)
        );
    }

    function decodeTxHeader(ICTxHeader header)
        internal
        pure
        returns (uint64 srcChainId, uint64 dstChainId, uint64 dbNonce, uint64 entryIndex)
    {
        srcChainId = uint64(ICTxHeader.unwrap(header) >> 192);
        dstChainId = uint64(ICTxHeader.unwrap(header) >> 128);
        dbNonce = uint64(ICTxHeader.unwrap(header) >> 64);
        entryIndex = uint64(ICTxHeader.unwrap(header));
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import {VersionedPayloadLib} from "./VersionedPayload.sol";

/// @notice Struct to hold V1 of options data.
/// @dev Next versions have to use the fields from the previous version and add new fields at the end.
/// @param gasLimit The gas limit for the transaction.
/// @param gasAirdrop The amount of gas to airdrop.
struct OptionsV1 {
    uint256 gasLimit;
    uint256 gasAirdrop;
}

using OptionsLib for OptionsV1 global;

/// @title OptionsLib
/// @notice A library for encoding and decoding Interchain options related to interchain messages.
library OptionsLib {
    using VersionedPayloadLib for bytes;

    uint16 internal constant OPTIONS_V1 = 1;

    error OptionsLib__VersionInvalid(uint16 version);

    /// @notice Decodes options (V1 or higher) from a bytes format back into an OptionsV1 struct.
    /// @param data         The options data in bytes format.
    function decodeOptionsV1(bytes memory data) internal view returns (OptionsV1 memory) {
        uint16 version = data.getVersionFromMemory();
        if (version < OPTIONS_V1) {
            revert OptionsLib__VersionInvalid(version);
        }
        // Structs of the same version will always be decoded correctly.
        // Following versions will be decoded correctly if they have the same fields as the previous version,
        // and new fields at the end: abi.decode ignores the extra bytes in the decoded payload.
        return abi.decode(data.getPayloadFromMemory(), (OptionsV1));
    }

    /// @notice Encodes V1 options into a bytes format.
    /// @param options      The OptionsV1 to encode.
    function encodeOptionsV1(OptionsV1 memory options) internal pure returns (bytes memory) {
        return VersionedPayloadLib.encodeVersionedPayload(OPTIONS_V1, abi.encode(options));
    }
}

// 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
pragma solidity ^0.8.20;

import {AbstractICAppEvents} from "../events/AbstractICAppEvents.sol";

import {IInterchainApp} from "../interfaces/IInterchainApp.sol";
import {IInterchainClientV1} from "../interfaces/IInterchainClientV1.sol";

import {InterchainTxDescriptor} from "../libs/InterchainTransaction.sol";
import {TypeCasts} from "../libs/TypeCasts.sol";

abstract contract AbstractICApp is AbstractICAppEvents, IInterchainApp {
    using TypeCasts for address;

    error InterchainApp__BalanceBelowMin(uint256 balance, uint256 minRequired);
    error InterchainApp__CallerNotInterchainClient(address caller);
    error InterchainApp__ChainIdNotRemote(uint64 chainId);
    error InterchainApp__InterchainClientAlreadyAdded(address client);
    error InterchainApp__InterchainClientAlreadyLatest(address client);
    error InterchainApp__InterchainClientZeroAddress();
    error InterchainApp__ReceiverZeroAddress(uint64 chainId);
    error InterchainApp__SrcSenderNotAllowed(uint64 srcChainId, bytes32 sender);

    /// @inheritdoc IInterchainApp
    function appReceive(
        uint64 srcChainId,
        bytes32 sender,
        uint64 dbNonce,
        uint64 entryIndex,
        bytes calldata message
    )
        external
        payable
    {
        if (!_isInterchainClient(msg.sender)) {
            revert InterchainApp__CallerNotInterchainClient(msg.sender);
        }
        if (srcChainId == block.chainid) {
            revert InterchainApp__ChainIdNotRemote(srcChainId);
        }
        if (!_isAllowedSender(srcChainId, sender)) {
            revert InterchainApp__SrcSenderNotAllowed(srcChainId, sender);
        }
        _receiveMessage(srcChainId, sender, dbNonce, entryIndex, message);
    }

    /// @inheritdoc IInterchainApp
    function getReceivingConfig() external view returns (bytes memory appConfig, address[] memory modules) {
        appConfig = _getAppConfig();
        modules = _getModules();
    }

    // ═══════════════════════════════════════════ INTERNAL: MANAGEMENT ════════════════════════════════════════════════

    /// @dev Performs necessary checks and adds an Interchain Client.
    /// Optionally sets the latest client to this one.
    /// Note: should be guarded with permission checks in the derived contracts.
    function _addClient(address client, bool updateLatest) internal {
        if (client == address(0)) {
            revert InterchainApp__InterchainClientZeroAddress();
        }
        if (_isInterchainClient(client)) {
            revert InterchainApp__InterchainClientAlreadyAdded(client);
        }
        _toggleClientState(client, true);
        emit InterchainClientAdded(client);
        if (updateLatest) {
            _setLatestClient(client);
        }
    }

    /// @dev Performs necessary checks and removes an Interchain Client. If this client is the latest one,
    /// the latest client is set to zero address (effectively pausing the app ability to send messages).
    /// Note: should be guarded with permission checks in the derived contracts.
    function _removeClient(address client) internal {
        if (!_isInterchainClient(client)) {
            revert InterchainApp__CallerNotInterchainClient(client);
        }
        _toggleClientState(client, false);
        emit InterchainClientRemoved(client);
        if (client == _getLatestClient()) {
            _setLatestClient(address(0));
        }
    }

    /// @dev Sets the latest Interchain Client to one of the allowed clients. Setting the client to zero address
    /// is allowed and effectively pauses the app ability to send messages (but still allows to receive them).
    /// Note: should be guarded with permission checks in the derived contracts.
    function _setLatestClient(address client) internal {
        // New latest client must be an allowed client or zero address.
        if (!_isInterchainClient(client) && client != address(0)) {
            revert InterchainApp__CallerNotInterchainClient(client);
        }
        if (client == _getLatestClient()) {
            revert InterchainApp__InterchainClientAlreadyLatest(client);
        }
        _storeLatestClient(client);
        emit LatestClientSet(client);
    }

    /// @dev Stores the address of the latest Interchain Client.
    /// - The exact storage location is up to the implementation.
    /// - Must NOT be called directly: use `_setLatestClient` instead.
    /// - Should not emit any events: this is done in the calling function.
    function _storeLatestClient(address client) internal virtual;

    /// @dev Toggle the state of the Interchain Client (allowed/disallowed to send messages to this app).
    /// - The client is checked to be in the opposite state before the change.
    /// - The exact storage location is up to the implementation.
    /// - Must NOT be called directly: use `_addClient` and `_removeClient` instead.
    /// - Should not emit any events: this is done in the calling functions.
    function _toggleClientState(address client, bool allowed) internal virtual;

    // ════════════════════════════════════════════ INTERNAL: MESSAGING ════════════════════════════════════════════════

    /// @dev Thin wrapper around _sendInterchainMessage to accept EVM address as a parameter.
    function _sendInterchainMessageEVM(
        uint64 dstChainId,
        address receiver,
        uint256 messageFee,
        bytes memory options,
        bytes memory message
    )
        internal
        returns (InterchainTxDescriptor memory desc)
    {
        return _sendInterchainMessage(dstChainId, receiver.addressToBytes32(), messageFee, options, message);
    }

    /// @dev Performs necessary checks and sends an interchain message.
    function _sendInterchainMessage(
        uint64 dstChainId,
        bytes32 receiver,
        uint256 messageFee,
        bytes memory options,
        bytes memory message
    )
        internal
        returns (InterchainTxDescriptor memory desc)
    {
        address client = _getLatestClient();
        if (client == address(0)) {
            revert InterchainApp__InterchainClientZeroAddress();
        }
        if (dstChainId == block.chainid) {
            revert InterchainApp__ChainIdNotRemote(dstChainId);
        }
        if (receiver == 0) {
            revert InterchainApp__ReceiverZeroAddress(dstChainId);
        }
        if (address(this).balance < messageFee) {
            revert InterchainApp__BalanceBelowMin({balance: address(this).balance, minRequired: messageFee});
        }
        return IInterchainClientV1(client).interchainSend{value: messageFee}(
            dstChainId, receiver, _getExecutionService(), _getModules(), options, message
        );
    }

    /// @dev Internal logic for receiving messages. At this point the validity of the message is already checked.
    function _receiveMessage(
        uint64 srcChainId,
        bytes32 sender,
        uint64 dbNonce,
        uint64 entryIndex,
        bytes calldata message
    )
        internal
        virtual;

    // ══════════════════════════════════════════════ INTERNAL VIEWS ═══════════════════════════════════════════════════

    /// @dev Returns the fee for sending an Interchain message.
    function _getInterchainFee(
        uint64 dstChainId,
        bytes memory options,
        uint256 messageLen
    )
        internal
        view
        returns (uint256)
    {
        address client = _getLatestClient();
        if (client == address(0)) {
            revert InterchainApp__InterchainClientZeroAddress();
        }
        return IInterchainClientV1(client).getInterchainFee(
            dstChainId, _getExecutionService(), _getModules(), options, messageLen
        );
    }

    /// @dev Returns the configuration of the app for validating the received messages.
    function _getAppConfig() internal view virtual returns (bytes memory);

    /// @dev Returns the address of the Execution Service to use for sending messages.
    function _getExecutionService() internal view virtual returns (address);

    /// @dev Returns the latest Interchain Client. This is the Client that is used for sending messages.
    function _getLatestClient() internal view virtual returns (address);

    /// @dev Returns the list of modules to use for sending messages, as well as validating the received messages.
    function _getModules() internal view virtual returns (address[] memory);

    /// @dev Checks if the sender is allowed to send messages to this app.
    function _isAllowedSender(uint64 srcChainId, bytes32 sender) internal view virtual returns (bool);

    /// @dev Checks if the caller is an Interchain Client.
    /// Both latest and legacy Interchain Clients are allowed to call `appReceive`.
    function _isInterchainClient(address caller) internal view virtual returns (bool);
}

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

abstract contract InterchainAppV1Events {
    /// @notice Emitted when the app configuration V1 is set.
    /// The V1 version of app config requests at least N confirmations that are at least T seconds old
    /// from trusted modules to execute a transaction.
    /// @param requiredResponses    The number of module responses required for a transaction to be executed.
    /// @param optimisticPeriod     The time period after which a module response is considered final.
    event AppConfigV1Set(uint256 requiredResponses, uint256 optimisticPeriod);

    /// @notice Emitted when a remote instance of the app is linked.
    /// This instance is the only one that can send messages to this app from the remote chain.
    /// @param chainId              The remote chain ID.
    /// @param remoteApp            The address of the remote app on that chain.
    event AppLinked(uint64 chainId, bytes32 remoteApp);

    /// @notice Emitted when the execution service is set.
    /// This service will be used for requesting the execution of transactions on the remote chain.
    /// @param executionService     The address of the execution service.
    event ExecutionServiceSet(address executionService);

    /// @notice Emitted when a trusted module is added.
    /// The trusted modules will be used to verify the messages coming from the remote chains,
    /// as well as request the verification of the sent messages on the remote chains.
    /// @param module               The address of the trusted module that was added.
    event TrustedModuleAdded(address module);

    /// @notice Emitted when a trusted module is removed.
    /// @param module               The address of the trusted module that was removed.
    event TrustedModuleRemoved(address module);
}

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

import {AppConfigV1} from "../libs/AppConfig.sol";

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

interface IInterchainAppV1 is IInterchainApp {
    error InterchainApp__AppConfigInvalid(uint256 requiredResponses, uint256 optimisticPeriod);
    error InterchainApp__LinkedAppNotEVM(bytes32 linkedApp);
    error InterchainApp__ModuleAlreadyAdded(address module);
    error InterchainApp__ModuleNotAdded(address module);
    error InterchainApp__ModuleZeroAddress();
    error InterchainApp__RemoteAppZeroAddress();

    /// @notice Allows the owner to add the interchain client to the allowed clients set,
    /// and optionally set the latest client to this one.
    /// Note: only the allowed clients can send messages to this app.
    /// Note: the latest client is used for sending messages from this app.
    /// @param client       The address of the interchain client to add.
    /// @param updateLatest Whether to set the latest client to this one.
    function addInterchainClient(address client, bool updateLatest) external;

    /// @notice Allows the owner to remove the interchain client from the allowed clients set.
    /// If the client is the latest client, the latest client is set to the zero address.
    /// @param client       The address of the interchain client to remove.
    function removeInterchainClient(address client) external;

    /// @notice Allows the owner to set the address of the latest interchain client.
    /// @dev The new latest client must be an allowed client or zero address.
    /// Setting the client to zero address effectively pauses the app ability to send messages,
    /// while allowing to receive them.
    /// @param client       The address of the latest interchain client.
    function setLatestInterchainClient(address client) external;

    /// @notice Allows the owner to link the remote app for the given chain ID.
    /// - This address will be used as the receiver for the messages sent from this chain.
    /// - This address will be the only trusted sender for the messages sent to this chain.
    /// @param chainId      The remote chain ID.
    /// @param remoteApp    The address of the remote app to link.
    function linkRemoteApp(uint64 chainId, bytes32 remoteApp) external;

    /// @notice Thin wrapper for `linkRemoteApp` to accept EVM address as a parameter.
    function linkRemoteAppEVM(uint64 chainId, address remoteApp) external;

    /// @notice Allows the owner to add the module to the trusted modules set.
    /// - This set of modules will be used to verify both sent and received messages.
    function addTrustedModule(address module) external;

    /// @notice Allows the owner to remove the module from the trusted modules set.
    function removeTrustedModule(address module) external;

    /// @notice Allows the owner to set the app config for the current app. App config includes:
    /// - requiredResponses: the number of module responses required for accepting the message
    /// - optimisticPeriod: the minimum time after which the module responses are considered final
    function setAppConfigV1(uint256 requiredResponses, uint256 optimisticPeriod) external;

    /// @notice Allows the owner to set the address of the Execution Service.
    /// This address will be used to request execution of the messages sent from this chain,
    /// by supplying the Service's execution fee.
    function setExecutionService(address executionService) external;

    // ═══════════════════════════════════════════════════ VIEWS ═══════════════════════════════════════════════════════

    /// @notice Returns the app config for the current app: requiredResponses and optimisticPeriod.
    function getAppConfigV1() external view returns (AppConfigV1 memory);

    /// @notice Returns the address of the Execution Service used by this app for sending messages.
    function getExecutionService() external view returns (address);

    /// @notice Returns the list of Interchain Clients allowed to send messages to this app.
    function getInterchainClients() external view returns (address[] memory);

    /// @notice Returns the address of the latest interchain client.
    /// This address is used for sending messages from this app.
    function getLatestInterchainClient() external view returns (address);

    /// @notice Returns the linked app address (as bytes32) for the given chain ID.
    function getLinkedApp(uint64 chainId) external view returns (bytes32);

    /// @notice Thin wrapper for `getLinkedApp` to return the linked app address as EVM address.
    /// @dev Will revert if the linked app address is not an EVM address.
    function getLinkedAppEVM(uint64 chainId) external view returns (address);

    /// @notice Returns the list of Interchain Modules trusted by this app.
    /// This set of modules will be used to verify both sent and received messages.
    function getModules() external view returns (address[] memory);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import {VersionedPayloadLib} from "./VersionedPayload.sol";

// TODO: all of these could fit into a single 32 bytes slot
struct AppConfigV1 {
    uint256 requiredResponses;
    uint256 optimisticPeriod;
    uint256 guardFlag;
    address guard;
}

using AppConfigLib for AppConfigV1 global;

/// @dev Signals that the app opted out of using any Guard module.
uint8 constant APP_CONFIG_GUARD_DISABLED = 0;
/// @dev Signals that the app uses the default Guard module provided by InterchainClient contract.
uint8 constant APP_CONFIG_GUARD_DEFAULT = 1;
/// @dev Signals that the app uses a custom Guard module.
uint8 constant APP_CONFIG_GUARD_CUSTOM = 2;

library AppConfigLib {
    using VersionedPayloadLib for bytes;

    uint16 internal constant APP_CONFIG_V1 = 1;

    error AppConfigLib__VersionInvalid(uint16 version);

    /// @notice Decodes app config (V1 or higher) from a bytes format back into an AppConfigV1 struct.
    /// @param data         The app config data in bytes format.
    function decodeAppConfigV1(bytes memory data) internal view returns (AppConfigV1 memory) {
        uint16 version = data.getVersionFromMemory();
        if (version < APP_CONFIG_V1) {
            revert AppConfigLib__VersionInvalid(version);
        }
        // Structs of the same version will always be decoded correctly.
        // Following versions will be decoded correctly if they have the same fields as the previous version,
        // and new fields at the end: abi.decode ignores the extra bytes in the decoded payload.
        return abi.decode(data.getPayloadFromMemory(), (AppConfigV1));
    }

    /// @notice Encodes V1 app config into a bytes format.
    /// @param appConfig    The AppConfigV1 to encode.
    function encodeAppConfigV1(AppConfigV1 memory appConfig) internal pure returns (bytes memory) {
        return VersionedPayloadLib.encodeVersionedPayload(APP_CONFIG_V1, abi.encode(appConfig));
    }
}

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

library TypeCasts {
    function addressToBytes32(address addr) internal pure returns (bytes32) {
        return bytes32(uint256(uint160(addr)));
    }

    function bytes32ToAddress(bytes32 b) internal pure returns (address) {
        return address(uint160(uint256(b)));
    }
}

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

pragma solidity ^0.8.20;

import {IAccessControlEnumerable} from "./IAccessControlEnumerable.sol";
import {AccessControl} from "../AccessControl.sol";
import {EnumerableSet} from "../../utils/structs/EnumerableSet.sol";

/**
 * @dev Extension of {AccessControl} that allows enumerating the members of each role.
 */
abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl {
    using EnumerableSet for EnumerableSet.AddressSet;

    mapping(bytes32 role => EnumerableSet.AddressSet) private _roleMembers;

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

    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) public view virtual returns (address) {
        return _roleMembers[role].at(index);
    }

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) public view virtual returns (uint256) {
        return _roleMembers[role].length();
    }

    /**
     * @dev Overload {AccessControl-_grantRole} to track enumerable memberships
     */
    function _grantRole(bytes32 role, address account) internal virtual override returns (bool) {
        bool granted = super._grantRole(role, account);
        if (granted) {
            _roleMembers[role].add(account);
        }
        return granted;
    }

    /**
     * @dev Overload {AccessControl-_revokeRole} to track enumerable memberships
     */
    function _revokeRole(bytes32 role, address account) internal virtual override returns (bool) {
        bool revoked = super._revokeRole(role, account);
        if (revoked) {
            _roleMembers[role].remove(account);
        }
        return revoked;
    }
}

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

pragma solidity ^0.8.20;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```solidity
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position is the index of the value in the `values` array plus 1.
        // Position 0 is used to mean a value is not in the set.
        mapping(bytes32 value => uint256) _positions;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._positions[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We cache the value's position to prevent multiple reads from the same storage slot
        uint256 position = set._positions[value];

        if (position != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 valueIndex = position - 1;
            uint256 lastIndex = set._values.length - 1;

            if (valueIndex != lastIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the lastValue to the index where the value to delete is
                set._values[valueIndex] = lastValue;
                // Update the tracked position of the lastValue (that was just moved)
                set._positions[lastValue] = position;
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the tracked position for the deleted slot
            delete set._positions[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._positions[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

library MathLib {
    /// @notice Rounds up to the nearest multiple of 32.
    /// Note: Returns zero on overflows instead of reverting. This is fine for practical
    /// use cases, as this is used for determining the size of the payload in memory.
    function roundUpToWord(uint256 x) internal pure returns (uint256) {
        unchecked {
            return (x + 31) & ~uint256(31);
        }
    }
}

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

// solhint-disable no-inline-assembly
// solhint-disable ordering
library VersionedPayloadLib {
    /// @notice Amount of bytes reserved for the version (uint16) in the versioned payload
    uint256 internal constant VERSION_LENGTH = 2;

    error VersionedPayload__PayloadTooShort(bytes versionedPayload);
    error VersionedPayload__PrecompileFailed();

    /// @notice Encodes the versioned payload into a single bytes array.
    /// @param version  The payload's version.
    /// @param payload  The payload to encode.
    function encodeVersionedPayload(uint16 version, bytes memory payload) internal pure returns (bytes memory) {
        return abi.encodePacked(version, payload);
    }

    /// @notice Extracts the version from the versioned payload (calldata reference).
    /// @param versionedPayload     The versioned payload (calldata reference).
    function getVersion(bytes calldata versionedPayload) internal pure returns (uint16 version) {
        if (versionedPayload.length < VERSION_LENGTH) {
            revert VersionedPayload__PayloadTooShort(versionedPayload);
        }
        assembly {
            // We are only interested in the highest 16 bits of the loaded full 32 bytes word.
            version := shr(240, calldataload(versionedPayload.offset))
        }
    }

    /// @notice Extracts the payload from the versioned payload (calldata reference).
    /// @dev The extracted payload is also returned as a calldata reference.
    /// @param versionedPayload     The versioned payload.
    function getPayload(bytes calldata versionedPayload) internal pure returns (bytes calldata) {
        if (versionedPayload.length < VERSION_LENGTH) {
            revert VersionedPayload__PayloadTooShort(versionedPayload);
        }
        return versionedPayload[VERSION_LENGTH:];
    }

    /// @notice Extracts the version from the versioned payload (memory reference).
    /// @param versionedPayload     The versioned payload (memory reference).
    function getVersionFromMemory(bytes memory versionedPayload) internal pure returns (uint16 version) {
        if (versionedPayload.length < VERSION_LENGTH) {
            revert VersionedPayload__PayloadTooShort(versionedPayload);
        }
        assembly {
            // We are only interested in the highest 16 bits of the loaded full 32 bytes word.
            // We add 0x20 to skip the length of the bytes array.
            version := shr(240, mload(add(versionedPayload, 0x20)))
        }
    }

    /// @notice Extracts the payload from the versioned payload (memory reference).
    /// @dev The extracted payload is copied into a new memory location. Use `getPayload` when possible
    /// to avoid extra memory allocation.
    /// @param versionedPayload     The versioned payload (memory reference).
    function getPayloadFromMemory(bytes memory versionedPayload) internal view returns (bytes memory payload) {
        if (versionedPayload.length < VERSION_LENGTH) {
            revert VersionedPayload__PayloadTooShort(versionedPayload);
        }
        // Figure how many bytes to copy and allocate the memory for the extracted payload.
        uint256 toCopy;
        unchecked {
            toCopy = versionedPayload.length - VERSION_LENGTH;
        }
        payload = new bytes(toCopy);
        // Use identity precompile (0x04) to copy the payload. Unlike MCOPY, this is available on all EVM chains.
        bool res;
        assembly {
            // We add 0x20 to skip the length of the bytes array.
            // We add 0x02 to skip the 2 bytes reserved for the version.
            // Copy the payload to the previously allocated memory.
            res := staticcall(gas(), 0x04, add(versionedPayload, 0x22), toCopy, add(payload, 0x20), toCopy)
        }
        if (!res) {
            revert VersionedPayload__PrecompileFailed();
        }
    }
}

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

abstract contract AbstractICAppEvents {
    /// @notice Emitted when a new interchain client is added.
    /// This client will be able to send messages to the app.
    /// @param client   The address of the client.
    event InterchainClientAdded(address client);

    /// @notice Emitted when an interchain client is removed.
    /// @param client   The address of the client.
    event InterchainClientRemoved(address client);

    /// @notice Emitted when the latest interchain client is set.
    /// This client will be used by the app to send messages.
    /// @param client   The address of the client.
    event LatestClientSet(address client);
}

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

/// @notice Minimal interface for the Interchain App to work with the Interchain Client.
interface IInterchainApp {
    /// @notice Allows the Interchain Client to pass the message to the Interchain App.
    /// @dev App is responsible for keeping track of interchain clients, and must verify the message sender.
    /// @param srcChainId   Chain ID of the source chain, where the message was sent from.
    /// @param sender       Sender address on the source chain, as a bytes32 value.
    /// @param dbNonce      The Interchain DB nonce of the batch containing the message entry.
    /// @param entryIndex   The index of the message entry within the batch.
    /// @param message      The message being sent.
    function appReceive(
        uint64 srcChainId,
        bytes32 sender,
        uint64 dbNonce,
        uint64 entryIndex,
        bytes calldata message
    )
        external
        payable;

    /// @notice Returns the verification configuration of the Interchain App.
    /// @dev This configuration is used by the Interchain Client to verify that message has been confirmed
    /// by the Interchain Modules on the destination chain.
    /// Note: V1 version of AppConfig includes the required responses count, and optimistic period after which
    /// the message is considered confirmed by the module. Following versions may include additional fields.
    /// @return appConfig    The versioned configuration of the Interchain App, encoded as bytes.
    /// @return modules      The list of Interchain Modules that app is trusting to confirm the messages.
    function getReceivingConfig() external view returns (bytes memory appConfig, address[] memory modules);
}

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

import {InterchainTransaction, InterchainTxDescriptor} from "../libs/InterchainTransaction.sol";

interface IInterchainClientV1 {
    enum TxReadiness {
        Ready,
        AlreadyExecuted,
        BatchAwaitingResponses,
        BatchConflict,
        ReceiverNotICApp,
        ReceiverZeroRequiredResponses,
        TxWrongDstChainId,
        UndeterminedRevert
    }

    error InterchainClientV1__BatchConflict(address module);
    error InterchainClientV1__ChainIdNotLinked(uint64 chainId);
    error InterchainClientV1__ChainIdNotRemote(uint64 chainId);
    error InterchainClientV1__DstChainIdNotLocal(uint64 chainId);
    error InterchainClientV1__ExecutionServiceZeroAddress();
    error InterchainClientV1__FeeAmountBelowMin(uint256 feeAmount, uint256 minRequired);
    error InterchainClientV1__GasLeftBelowMin(uint256 gasLeft, uint256 minRequired);
    error InterchainClientV1__GuardZeroAddress();
    error InterchainClientV1__LinkedClientNotEVM(bytes32 client);
    error InterchainClientV1__MsgValueMismatch(uint256 msgValue, uint256 required);
    error InterchainClientV1__ReceiverNotICApp(address receiver);
    error InterchainClientV1__ReceiverZeroAddress();
    error InterchainClientV1__ReceiverZeroRequiredResponses(address receiver);
    error InterchainClientV1__ResponsesAmountBelowMin(uint256 responsesAmount, uint256 minRequired);
    error InterchainClientV1__TxAlreadyExecuted(bytes32 transactionId);
    error InterchainClientV1__TxNotExecuted(bytes32 transactionId);
    error InterchainClientV1__TxVersionMismatch(uint16 txVersion, uint16 required);

    /// @notice Allows the contract owner to set the address of the Guard module.
    /// Note: batches marked as invalid by the Guard could not be used for message execution,
    /// if the app opts in to use the Guard.
    /// @param guard_       The address of the Guard module.
    function setDefaultGuard(address guard_) external;

    /**
     * @notice Sets the linked client for a specific chain ID.
     * @dev Stores the address of the linked client in a mapping with the chain ID as the key.
     * @param chainId The chain ID for which the client is being set.
     * @param client The address of the client being linked.
     */
    function setLinkedClient(uint64 chainId, bytes32 client) external;

    /**
     * @notice Sends a message to another chain via the Interchain Communication Protocol.
     * @dev Charges a fee for the message, which is payable upon calling this function:
     * - Verification fees: paid to every module that verifies the message.
     * - Execution fee: paid to the executor that executes the message.
     * Note: while a specific execution service is specified to request the execution of the message,
     * any executor is able to execute the message on destination chain, earning the execution fee.
     * @param dstChainId The chain ID of the destination chain.
     * @param receiver The address of the receiver on the destination chain.
     * @param srcExecutionService The address of the execution service to use for the message.
     * @param srcModules The source modules involved in the message sending.
     * @param options Execution options for the message sent, encoded as bytes, currently gas limit + native gas drop.
     * @param message The message being sent.
     * @return desc The descriptor of the sent transaction:
     * - transactionId: the ID of the transaction that was sent.
     * - dbNonce: the database nonce of the batch containing the written entry for transaction.
     * - entryIndex: the index of the written entry for transaction within the batch.
     */
    function interchainSend(
        uint64 dstChainId,
        bytes32 receiver,
        address srcExecutionService,
        address[] calldata srcModules,
        bytes calldata options,
        bytes calldata message
    )
        external
        payable
        returns (InterchainTxDescriptor memory desc);

    function interchainSendEVM(
        uint64 dstChainId,
        address receiver,
        address srcExecutionService,
        address[] calldata srcModules,
        bytes calldata options,
        bytes calldata message
    )
        external
        payable
        returns (InterchainTxDescriptor memory desc);

    /**
     * @notice Executes a transaction that has been sent via the Interchain.
     * @dev The transaction must have been previously sent and recorded.
     * Transaction data includes the requested gas limit, but the executors could specify a different gas limit.
     * If the specified gas limit is lower than requested, the requested gas limit will be used.
     * Otherwise, the specified gas limit will be used.
     * This allows to execute the transactions with requested gas limit set too low.
     * @param gasLimit          The gas limit to use for the execution.
     * @param transaction       The transaction data.
     * @param proof             The Merkle proof for transaction execution, fetched from the source chain.
     */
    function interchainExecute(
        uint256 gasLimit,
        bytes calldata transaction,
        bytes32[] calldata proof
    )
        external
        payable;

    /// @notice Writes the proof of execution for a transaction into the InterchainDB.
    /// @dev Will revert if the transaction has not been executed.
    /// @param transactionId    The ID of the transaction to write the proof for.
    /// @return dbNonce         The database nonce of the batch containing the written proof for transaction.
    /// @return entryIndex      The index of the written proof for transaction within the batch.
    function writeExecutionProof(bytes32 transactionId) external returns (uint64 dbNonce, uint64 entryIndex);

    /**
     * @notice Checks if a transaction is executable.
     * @dev Determines if a transaction meets the criteria to be executed based on:
     * - If approved modules have written to the InterchainDB
     * - If the threshold of approved modules have been met
     * - If the optimistic window has passed for all modules
     * @param transaction       The InterchainTransaction struct to be checked.
     * @param proof             The Merkle proof for transaction execution, fetched from the source chain.
     * @return bool Returns true if the transaction is executable, false otherwise.
     */
    function isExecutable(bytes calldata transaction, bytes32[] calldata proof) external view returns (bool);

    /// @notice Returns the readiness status of a transaction to be executed.
    /// @dev Some of the possible statuses have additional arguments that are returned:
    /// - Ready: the transaction is ready to be executed.
    /// - AlreadyExecuted: the transaction has already been executed.
    ///   - `firstArg` is the transaction ID.
    /// - BatchAwaitingResponses: not enough responses have been received for the transaction.
    ///   - `firstArg` is the number of responses received.
    ///   - `secondArg` is the number of responses required.
    /// - BatchConflict: one of the modules have submitted a conflicting batch.
    ///   - `firstArg` is the address of the module.
    ///   - This is either one of the modules that the app trusts, or the Guard module used by the app.
    /// - ReceiverNotICApp: the receiver is not an Interchain app.
    ///  - `firstArg` is the receiver address.
    /// - ReceiverZeroRequiredResponses: the app config requires zero responses for the transaction.
    /// - TxWrongDstChainId: the destination chain ID does not match the local chain ID.
    ///   - `firstArg` is the destination chain ID.
    /// - UndeterminedRevert: the transaction will revert for another reason.
    ///
    /// Note: the arguments are abi-encoded bytes32 values (as their types could be different).
    function getTxReadinessV1(
        InterchainTransaction memory icTx,
        bytes32[] calldata proof
    )
        external
        view
        returns (TxReadiness status, bytes32 firstArg, bytes32 secondArg);

    /// @notice Returns the fee for sending an Interchain message.
    /// @param dstChainId           The chain ID of the destination chain.
    /// @param srcExecutionService  The address of the execution service to use for the message.
    /// @param srcModules           The source modules involved in the message sending.
    /// @param options              Execution options for the message sent, currently gas limit + native gas drop.
    /// @param messageLen           The length of the message being sent.
    function getInterchainFee(
        uint64 dstChainId,
        address srcExecutionService,
        address[] calldata srcModules,
        bytes calldata options,
        uint256 messageLen
    )
        external
        view
        returns (uint256);

    /// @notice Returns the address of the executor for a transaction that has been sent to the local chain.
    function getExecutor(bytes calldata transaction) external view returns (address);

    /// @notice Returns the address of the executor for a transaction that has been sent to the local chain.
    function getExecutorById(bytes32 transactionId) external view returns (address);

    /// @notice Returns the address of the linked client (as bytes32) for a specific chain ID.
    /// @dev Will return 0x0 if no client is linked for the chain ID.
    function getLinkedClient(uint64 chainId) external view returns (bytes32);

    /// @notice Returns the EVM address of the linked client for a specific chain ID.
    /// @dev Will return 0x0 if no client is linked for the chain ID.
    /// Will revert if the client is not an EVM client.
    function getLinkedClientEVM(uint64 chainId) external view returns (address);
}

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

pragma solidity ^0.8.20;

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

/**
 * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
 */
interface IAccessControlEnumerable is IAccessControl {
    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) external view returns (address);

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) external view returns (uint256);
}

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

pragma solidity ^0.8.20;

import {IAccessControl} from "./IAccessControl.sol";
import {Context} from "../utils/Context.sol";
import {ERC165} from "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    mapping(bytes32 role => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

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

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

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

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

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

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

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

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

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

        _revokeRole(role, callerConfirmation);
    }

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

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

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

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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.20;

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (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) (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);
}

{
  "remappings": [
    "@openzeppelin/=node_modules/@openzeppelin/",
    "@synapsecns/=node_modules/@synapsecns/",
    "ds-test/=node_modules/ds-test/src/",
    "forge-std/=node_modules/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": false,
  "libraries": {}
}

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000000000000000000000000e7353bedc72d29f99d6ca5cde69f807cce5d57e4

-----Decoded View---------------
Arg [0] : admin (address): 0xE7353BEdc72D29f99D6cA5CDE69F807cCE5d57e4

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000e7353bedc72d29f99d6ca5cde69f807cce5d57e4