// SPDX-License-Identifier: ISC
pragma solidity ^0.8.19;

// ====================================================================
// |     ______                   _______                             |
// |    / _____________ __  __   / ____(_____  ____ _____  ________   |
// |   / /_  / ___/ __ `| |/_/  / /_  / / __ \/ __ `/ __ \/ ___/ _ \  |
// |  / __/ / /  / /_/ _>  <   / __/ / / / / / /_/ / / / / /__/  __/  |
// | /_/   /_/   \__,_/_/|_|  /_/   /_/_/ /_/\__,_/_/ /_/\___/\___/   |
// |                                                                  |
// ====================================================================
// ================= FraxtalERC4626TransportOracle ====================
// ====================================================================
// Frax Finance: https://github.com/FraxFinance

// ====================================================================
import { Timelock2Step } from "frax-std/access-control/v1/Timelock2Step.sol";
import { ITimelock2Step } from "frax-std/access-control/v1/interfaces/ITimelock2Step.sol";
import { ERC165Storage } from "src/contracts/utils/ERC165Storage.sol";
import { FixedPointMathLib } from "@solmate/utils/FixedPointMathLib.sol";
import { SafeCastLib } from "@solmate/utils/SafeCastLib.sol";

/// @dev High/low prices will be equivalent and return the L1 CL Oracle result
contract FraxtalERC4626TransportOracle is Timelock2Step, ERC165Storage {
    using FixedPointMathLib for uint256;
    using SafeCastLib for uint256;

    address public priceSource;
    uint256 public storedTotalAssets;
    uint256 public totalSupply;
    /// @notice The timestamp of the last time rewards were distributed
    uint256 public lastRewardsDistribution;
    uint256 public maxDistributionPerSecondPerAsset;
    uint96 public lastL1Block;

    /// @notice Information about the current rewards cycle
    struct RewardsCycleData {
        uint40 cycleEnd; // Timestamp of the end of the current rewards cycle
        uint40 lastSync; // Timestamp of the last time the rewards cycle was synced
        uint216 rewardCycleAmount; // Amount of rewards to be distributed in the current cycle
    }

    /// @notice The rewards cycle data, stored in a single word to save gas
    RewardsCycleData public rewardsCycleData;

    constructor(address _timelock, address _priceSource) {
        _setTimelock({ _newTimelock: _timelock });
        _registerInterface({ interfaceId: type(ITimelock2Step).interfaceId });
        priceSource = _priceSource;
    }

    // ====================================================================
    // Internal Configuration Setters
    // ====================================================================

    /// @notice The ```_setPriceSource``` function sets the price source
    /// @param _newPriceSource The new price source
    function _setPriceSource(address _newPriceSource) internal {
        address _priceSource = priceSource;
        if (_priceSource == _newPriceSource) revert SamePriceSource();
        emit SetPriceSource({ oldPriceSource: _priceSource, newPriceSource: _newPriceSource });
        priceSource = _newPriceSource;
    }

    // ====================================================================
    // Configuration Setters
    // ====================================================================

    /// @notice The ```setPriceSource``` function sets the price source
    /// @dev Requires msg.sender to be the timelock address
    /// @param _newPriceSource The new price source address
    function setPriceSource(address _newPriceSource) external {
        _requireTimelock();
        _setPriceSource({ _newPriceSource: _newPriceSource });
    }

    // ====================================================================
    // View Helpers
    // ====================================================================

    /// @notice The ```description``` function returns the description of the contract
    /// @return _description The description of the contract
    function description() external pure returns (string memory _description) {
        _description = "sFRAX/FRAX: Rate Transport";
    }

    function name() external pure returns (string memory _name) {
        _name = "sFRAX/FRAX: Rate Transport";
    }

    /// @notice The ```decimals``` function returns same decimals value as CL Oracle
    /// @return _decimals The decimals corresponding to the CL answer being transported to L2
    /// @dev Needed for ingesting CL feed into Frax Oracles
    function decimals() external pure returns (uint8 _decimals) {
        _decimals = 18;
    }

    /// @notice Conforms to the ERC4626 Interface
    function pricePerShare() public view returns (uint256) {
        uint256 supply = totalSupply; // Saves an extra SLOAD if totalSupply is non-zero.

        return supply == 0 ? 1e18 : uint256(1e18).mulDivDown(totalAssets(), supply);
    }

    /// @notice The ```previewDistributeRewards``` function is used to preview the rewards distributed at the top of the block
    /// @return _rewardToDistribute The amount of underlying to distribute
    function previewDistributeRewards() public view virtual returns (uint256 _rewardToDistribute) {
        // Cache state for gas savings
        RewardsCycleData memory _rewardsCycleData = rewardsCycleData;
        uint256 _lastRewardsDistribution = lastRewardsDistribution;
        uint40 _timestamp = uint40(block.timestamp);

        // Calculate the delta time, but only include up to the cycle end in case we are passed it
        uint256 _deltaTime = _timestamp > _rewardsCycleData.cycleEnd
            ? _rewardsCycleData.cycleEnd - _lastRewardsDistribution
            : _timestamp - _lastRewardsDistribution;

        // Calculate the rewards to distribute
        _rewardToDistribute = calculateRewardsToDistribute({
            _rewardsCycleData: _rewardsCycleData,
            _deltaTime: _deltaTime
        });
    }

    /// @notice The ```calculateRewardsToDistribute``` function calculates the amount of rewards to distribute based on the rewards cycle data and the time elapsed
    /// @param _rewardsCycleData The rewards cycle data
    /// @param _deltaTime The time elapsed since the last rewards distribution
    /// @return _rewardToDistribute The amount of rewards to distribute
    function calculateRewardsToDistribute(
        RewardsCycleData memory _rewardsCycleData,
        uint256 _deltaTime
    ) public view virtual returns (uint256 _rewardToDistribute) {
        _rewardToDistribute =
            (_rewardsCycleData.rewardCycleAmount * _deltaTime) /
            (_rewardsCycleData.cycleEnd - _rewardsCycleData.lastSync);

        uint256 _maxDistribution = (maxDistributionPerSecondPerAsset * _deltaTime * storedTotalAssets) / 1e18;
        if (_rewardToDistribute > _maxDistribution) {
            _rewardToDistribute = _maxDistribution;
        }
    }

    /// @notice The ```totalAssets``` function returns the total assets available in the vault
    /// @dev This function simulates the rewards that will be distributed at the top of the block
    /// @return _totalAssets The total assets available in the vault
    function totalAssets() public view virtual returns (uint256 _totalAssets) {
        uint256 _rewardToDistribute = previewDistributeRewards();
        _totalAssets = storedTotalAssets + _rewardToDistribute;
    }

    function _getPrices() internal view returns (bool isBadData, uint256 _priceLow, uint256 _priceHigh) {
        uint256 supply = totalSupply; // Saves an extra SLOAD if totalSupply is non-zero.
        uint256 fraxPerSfrax = supply == 0 ? 1e18 : uint256(1e18).mulDivDown(totalAssets(), supply);
        _priceLow = _priceHigh = fraxPerSfrax;
        isBadData = false;
    }

    /// @notice The ```getPrices``` function is intended to return two prices from different oracles
    /// @return isBadData is true when data is stale or otherwise bad
    /// @return _priceLow is the lower of the two prices
    /// @return _priceHigh is the higher of the two prices
    function getPrices() external view returns (bool isBadData, uint256 _priceLow, uint256 _priceHigh) {
        (isBadData, _priceLow, _priceHigh) = _getPrices();
    }

    /// @dev Adheres to chainlink's AggregatorV3Interface
    /// @return roundId The l1Block corresponding to the last time the oracle was proofed
    /// @return answer The price of Sfrax in frax
    /// @return startedAt The current timestamp
    /// @return updatedAt The current timestamp
    /// @return answeredInRound The l1Block corresponding to the last time the oracle was proofed
    function latestRoundData()
        external
        view
        returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound)
    {
        answeredInRound = roundId = uint80(lastL1Block);
        startedAt = updatedAt = block.timestamp;
        answer = int256(pricePerShare());
        if (answer < 0) revert CastError();
        if (roundId < 0) revert CastError();
    }

    // ====================================================================
    // Relay functions from merkle prover
    // ====================================================================
    /// TODO: natspec
    function updatesFRAXData(
        uint96 _l1BlockNumber,
        uint256 _totalSupply,
        uint256 _totalAssets,
        uint256 _lastRewardsDistribution,
        RewardsCycleData memory _data
    ) external {
        if (msg.sender != priceSource) revert OnlyPriceSource();
        if (_l1BlockNumber < lastL1Block) revert StalePush();
        rewardsCycleData = _data;
        lastRewardsDistribution = _lastRewardsDistribution;
        totalSupply = _totalSupply;
        storedTotalAssets = _totalAssets;
        emit VaultDataUpdated(totalSupply, storedTotalAssets, lastRewardsDistribution, rewardsCycleData);
    }

    /// TODO: natspec
    function updateMaxDistributionPerSecond(uint96 _l1BlockNumber, uint256 _maxPerSecond) external {
        if (msg.sender != priceSource) revert OnlyPriceSource();
        if (_l1BlockNumber < lastL1Block) revert StalePush();
        maxDistributionPerSecondPerAsset = _maxPerSecond;
        emit MaxDistributionPerSecondPerAssetUpdated(maxDistributionPerSecondPerAsset);
    }

    // ====================================================================
    // Events
    // ====================================================================

    /// @notice The ```SetPriceSource``` event is emitted when the price source is set
    /// @param oldPriceSource The old price source address
    /// @param newPriceSource The new price source address
    event SetPriceSource(address oldPriceSource, address newPriceSource);
    event VaultDataUpdated(
        uint256 totalSupply,
        uint256 totalStoredAssets,
        uint256 lastRewardsDistribution,
        RewardsCycleData data
    );
    event MaxDistributionPerSecondPerAssetUpdated(uint256 newMax);
    // ====================================================================
    // Errors
    // ====================================================================

    error OnlyPriceSource();
    error SamePriceSource();
    error StalePush();
    error CastError();
}

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

// ====================================================================
// |     ______                   _______                             |
// |    / _____________ __  __   / ____(_____  ____ _____  ________   |
// |   / /_  / ___/ __ `| |/_/  / /_  / / __ \/ __ `/ __ \/ ___/ _ \  |
// |  / __/ / /  / /_/ _>  <   / __/ / / / / / /_/ / / / / /__/  __/  |
// | /_/   /_/   \__,_/_/|_|  /_/   /_/_/ /_/\__,_/_/ /_/\___/\___/   |
// |                                                                  |
// ====================================================================
// ========================== Timelock2Step ===========================
// ====================================================================
// Frax Finance: https://github.com/FraxFinance

// Primary Author
// Drake Evans: https://github.com/DrakeEvans

// Reviewers
// Dennis: https://github.com/denett

// ====================================================================

/// @title Timelock2Step
/// @author Drake Evans (Frax Finance) https://github.com/drakeevans
/// @dev Inspired by the OpenZeppelin's Ownable2Step contract
/// @notice  An abstract contract which contains 2-step transfer and renounce logic for a timelock address
abstract contract Timelock2Step {
    /// @notice The pending timelock address
    address public pendingTimelockAddress;

    /// @notice The current timelock address
    address public timelockAddress;

    constructor() {
        timelockAddress = msg.sender;
    }

    /// @notice Emitted when timelock is transferred
    error OnlyTimelock();

    /// @notice Emitted when pending timelock is transferred
    error OnlyPendingTimelock();

    /// @notice The ```TimelockTransferStarted``` event is emitted when the timelock transfer is initiated
    /// @param previousTimelock The address of the previous timelock
    /// @param newTimelock The address of the new timelock
    event TimelockTransferStarted(address indexed previousTimelock, address indexed newTimelock);

    /// @notice The ```TimelockTransferred``` event is emitted when the timelock transfer is completed
    /// @param previousTimelock The address of the previous timelock
    /// @param newTimelock The address of the new timelock
    event TimelockTransferred(address indexed previousTimelock, address indexed newTimelock);

    /// @notice The ```_isSenderTimelock``` function checks if msg.sender is current timelock address
    /// @return Whether or not msg.sender is current timelock address
    function _isSenderTimelock() internal view returns (bool) {
        return msg.sender == timelockAddress;
    }

    /// @notice The ```_requireTimelock``` function reverts if msg.sender is not current timelock address
    function _requireTimelock() internal view {
        if (msg.sender != timelockAddress) revert OnlyTimelock();
    }

    /// @notice The ```_isSenderPendingTimelock``` function checks if msg.sender is pending timelock address
    /// @return Whether or not msg.sender is pending timelock address
    function _isSenderPendingTimelock() internal view returns (bool) {
        return msg.sender == pendingTimelockAddress;
    }

    /// @notice The ```_requirePendingTimelock``` function reverts if msg.sender is not pending timelock address
    function _requirePendingTimelock() internal view {
        if (msg.sender != pendingTimelockAddress) revert OnlyPendingTimelock();
    }

    /// @notice The ```_transferTimelock``` function initiates the timelock transfer
    /// @dev This function is to be implemented by a public function
    /// @param _newTimelock The address of the nominated (pending) timelock
    function _transferTimelock(address _newTimelock) internal {
        pendingTimelockAddress = _newTimelock;
        emit TimelockTransferStarted(timelockAddress, _newTimelock);
    }

    /// @notice The ```_acceptTransferTimelock``` function completes the timelock transfer
    /// @dev This function is to be implemented by a public function
    function _acceptTransferTimelock() internal {
        pendingTimelockAddress = address(0);
        _setTimelock(msg.sender);
    }

    /// @notice The ```_setTimelock``` function sets the timelock address
    /// @dev This function is to be implemented by a public function
    /// @param _newTimelock The address of the new timelock
    function _setTimelock(address _newTimelock) internal {
        emit TimelockTransferred(timelockAddress, _newTimelock);
        timelockAddress = _newTimelock;
    }

    /// @notice The ```transferTimelock``` function initiates the timelock transfer
    /// @dev Must be called by the current timelock
    /// @param _newTimelock The address of the nominated (pending) timelock
    function transferTimelock(address _newTimelock) external virtual {
        _requireTimelock();
        _transferTimelock(_newTimelock);
    }

    /// @notice The ```acceptTransferTimelock``` function completes the timelock transfer
    /// @dev Must be called by the pending timelock
    function acceptTransferTimelock() external virtual {
        _requirePendingTimelock();
        _acceptTransferTimelock();
    }

    /// @notice The ```renounceTimelock``` function renounces the timelock after setting pending timelock to current timelock
    /// @dev Pending timelock must be set to current timelock before renouncing, creating a 2-step renounce process
    function renounceTimelock() external virtual {
        _requireTimelock();
        _requirePendingTimelock();
        _transferTimelock(address(0));
        _setTimelock(address(0));
    }
}

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

interface ITimelock2Step {
    event TimelockTransferStarted(address indexed previousTimelock, address indexed newTimelock);
    event TimelockTransferred(address indexed previousTimelock, address indexed newTimelock);

    function acceptTransferTimelock() external;

    function pendingTimelockAddress() external view returns (address);

    function renounceTimelock() external;

    function timelockAddress() external view returns (address);

    function transferTimelock(address _newTimelock) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165Storage.sol)
pragma solidity ^0.8.0;

import { ERC165 } from "@openzeppelin/contracts/utils/introspection/ERC165.sol";

/**
 * @dev Storage based implementation of the {IERC165} interface.
 *
 * Contracts may inherit from this and call {_registerInterface} to declare
 * their support of an interface.
 */
abstract contract ERC165Storage is ERC165 {
    /**
     * @dev Mapping of interface ids to whether or not it's supported.
     */
    mapping(bytes4 => bool) private _supportedInterfaces;

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

    /**
     * @dev Registers the contract as an implementer of the interface defined by
     * `interfaceId`. Support of the actual ERC165 interface is automatic and
     * registering its interface id is not required.
     *
     * See {IERC165-supportsInterface}.
     *
     * Requirements:
     *
     * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).
     */
    function _registerInterface(bytes4 interfaceId) internal virtual {
        require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
        _supportedInterfaces[interfaceId] = true;
    }
}

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

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

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

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

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

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

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

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

    function mulDivDown(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 z) {
        assembly {
            // Store x * y in z for now.
            z := mul(x, y)

            // Equivalent to require(denominator != 0 && (x == 0 || (x * y) / x == y))
            if iszero(and(iszero(iszero(denominator)), or(iszero(x), eq(div(z, x), y)))) {
                revert(0, 0)
            }

            // Divide z by the denominator.
            z := div(z, denominator)
        }
    }

    function mulDivUp(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 z) {
        assembly {
            // Store x * y in z for now.
            z := mul(x, y)

            // Equivalent to require(denominator != 0 && (x == 0 || (x * y) / x == y))
            if iszero(and(iszero(iszero(denominator)), or(iszero(x), eq(div(z, x), y)))) {
                revert(0, 0)
            }

            // First, divide z - 1 by the denominator and add 1.
            // We allow z - 1 to underflow if z is 0, because we multiply the
            // end result by 0 if z is zero, ensuring we return 0 if z is zero.
            z := mul(iszero(iszero(z)), add(div(sub(z, 1), denominator), 1))
        }
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

    function sqrt(uint256 x) internal pure returns (uint256 z) {
        assembly {
            // Start off with z at 1.
            z := 1

            // Used below to help find a nearby power of 2.
            let y := x

            // Find the lowest power of 2 that is at least sqrt(x).
            if iszero(lt(y, 0x100000000000000000000000000000000)) {
                y := shr(128, y) // Like dividing by 2 ** 128.
                z := shl(64, z) // Like multiplying by 2 ** 64.
            }
            if iszero(lt(y, 0x10000000000000000)) {
                y := shr(64, y) // Like dividing by 2 ** 64.
                z := shl(32, z) // Like multiplying by 2 ** 32.
            }
            if iszero(lt(y, 0x100000000)) {
                y := shr(32, y) // Like dividing by 2 ** 32.
                z := shl(16, z) // Like multiplying by 2 ** 16.
            }
            if iszero(lt(y, 0x10000)) {
                y := shr(16, y) // Like dividing by 2 ** 16.
                z := shl(8, z) // Like multiplying by 2 ** 8.
            }
            if iszero(lt(y, 0x100)) {
                y := shr(8, y) // Like dividing by 2 ** 8.
                z := shl(4, z) // Like multiplying by 2 ** 4.
            }
            if iszero(lt(y, 0x10)) {
                y := shr(4, y) // Like dividing by 2 ** 4.
                z := shl(2, z) // Like multiplying by 2 ** 2.
            }
            if iszero(lt(y, 0x8)) {
                // Equivalent to 2 ** z.
                z := shl(1, z)
            }

            // Shifting right by 1 is like dividing by 2.
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))
            z := shr(1, add(z, div(x, z)))

            // Compute a rounded down version of z.
            let zRoundDown := div(x, z)

            // If zRoundDown is smaller, use it.
            if lt(zRoundDown, z) {
                z := zRoundDown
            }
        }
    }
}

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

/// @notice Safe unsigned integer casting library that reverts on overflow.
/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/utils/SafeCastLib.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/math/SafeCast.sol)
library SafeCastLib {
    function safeCastTo248(uint256 x) internal pure returns (uint248 y) {
        require(x < 1 << 248);

        y = uint248(x);
    }

    function safeCastTo224(uint256 x) internal pure returns (uint224 y) {
        require(x < 1 << 224);

        y = uint224(x);
    }

    function safeCastTo192(uint256 x) internal pure returns (uint192 y) {
        require(x < 1 << 192);

        y = uint192(x);
    }

    function safeCastTo160(uint256 x) internal pure returns (uint160 y) {
        require(x < 1 << 160);

        y = uint160(x);
    }

    function safeCastTo128(uint256 x) internal pure returns (uint128 y) {
        require(x < 1 << 128);

        y = uint128(x);
    }

    function safeCastTo96(uint256 x) internal pure returns (uint96 y) {
        require(x < 1 << 96);

        y = uint96(x);
    }

    function safeCastTo64(uint256 x) internal pure returns (uint64 y) {
        require(x < 1 << 64);

        y = uint64(x);
    }

    function safeCastTo32(uint256 x) internal pure returns (uint32 y) {
        require(x < 1 << 32);

        y = uint32(x);
    }

    function safeCastTo8(uint256 x) internal pure returns (uint8 y) {
        require(x < 1 << 8);

        y = uint8(x);
    }
}

// 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": [
    "ds-test/=node_modules/ds-test/src/",
    "forge-std/=node_modules/forge-std/src/",
    "frax-std/=node_modules/frax-standard-solidity/src/",
    "script/=src/script/",
    "src/=src/",
    "test/=src/test/",
    "interfaces/=src/contracts/interfaces/",
    "arbitrum/=node_modules/@arbitrum/",
    "rlp/=node_modules/solidity-rlp/contracts/",
    "@solmate/=node_modules/@rari-capital/solmate/src/",
    "@arbitrum/=node_modules/@arbitrum/",
    "@chainlink/=node_modules/@chainlink/",
    "@eth-optimism/=node_modules/@eth-optimism/",
    "@mean-finance/=node_modules/@mean-finance/",
    "@offchainlabs/=node_modules/@offchainlabs/",
    "@openzeppelin/=node_modules/@openzeppelin/",
    "@rari-capital/=node_modules/@rari-capital/",
    "@uniswap/=node_modules/@uniswap/",
    "base64-sol/=node_modules/base64-sol/",
    "frax-standard-solidity/=node_modules/frax-standard-solidity/",
    "hardhat/=node_modules/hardhat/",
    "prb-math/=node_modules/prb-math/",
    "solidity-bytes-utils/=node_modules/solidity-bytes-utils/",
    "solidity-rlp/=node_modules/solidity-rlp/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "none",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": false,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_timelock","type":"address"},{"internalType":"address","name":"_priceSource","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"CastError","type":"error"},{"inputs":[],"name":"OnlyPendingTimelock","type":"error"},{"inputs":[],"name":"OnlyPriceSource","type":"error"},{"inputs":[],"name":"OnlyTimelock","type":"error"},{"inputs":[],"name":"SamePriceSource","type":"error"},{"inputs":[],"name":"StalePush","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newMax","type":"uint256"}],"name":"MaxDistributionPerSecondPerAssetUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldPriceSource","type":"address"},{"indexed":false,"internalType":"address","name":"newPriceSource","type":"address"}],"name":"SetPriceSource","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousTimelock","type":"address"},{"indexed":true,"internalType":"address","name":"newTimelock","type":"address"}],"name":"TimelockTransferStarted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousTimelock","type":"address"},{"indexed":true,"internalType":"address","name":"newTimelock","type":"address"}],"name":"TimelockTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"totalSupply","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"totalStoredAssets","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lastRewardsDistribution","type":"uint256"},{"components":[{"internalType":"uint40","name":"cycleEnd","type":"uint40"},{"internalType":"uint40","name":"lastSync","type":"uint40"},{"internalType":"uint216","name":"rewardCycleAmount","type":"uint216"}],"indexed":false,"internalType":"struct FraxtalERC4626TransportOracle.RewardsCycleData","name":"data","type":"tuple"}],"name":"VaultDataUpdated","type":"event"},{"inputs":[],"name":"acceptTransferTimelock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"uint40","name":"cycleEnd","type":"uint40"},{"internalType":"uint40","name":"lastSync","type":"uint40"},{"internalType":"uint216","name":"rewardCycleAmount","type":"uint216"}],"internalType":"struct FraxtalERC4626TransportOracle.RewardsCycleData","name":"_rewardsCycleData","type":"tuple"},{"internalType":"uint256","name":"_deltaTime","type":"uint256"}],"name":"calculateRewardsToDistribute","outputs":[{"internalType":"uint256","name":"_rewardToDistribute","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"_decimals","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"description","outputs":[{"internalType":"string","name":"_description","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getPrices","outputs":[{"internalType":"bool","name":"isBadData","type":"bool"},{"internalType":"uint256","name":"_priceLow","type":"uint256"},{"internalType":"uint256","name":"_priceHigh","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastL1Block","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastRewardsDistribution","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestRoundData","outputs":[{"internalType":"uint80","name":"roundId","type":"uint80"},{"internalType":"int256","name":"answer","type":"int256"},{"internalType":"uint256","name":"startedAt","type":"uint256"},{"internalType":"uint256","name":"updatedAt","type":"uint256"},{"internalType":"uint80","name":"answeredInRound","type":"uint80"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxDistributionPerSecondPerAsset","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"_name","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"pendingTimelockAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"previewDistributeRewards","outputs":[{"internalType":"uint256","name":"_rewardToDistribute","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pricePerShare","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"priceSource","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceTimelock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardsCycleData","outputs":[{"internalType":"uint40","name":"cycleEnd","type":"uint40"},{"internalType":"uint40","name":"lastSync","type":"uint40"},{"internalType":"uint216","name":"rewardCycleAmount","type":"uint216"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_newPriceSource","type":"address"}],"name":"setPriceSource","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"storedTotalAssets","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"timelockAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalAssets","outputs":[{"internalType":"uint256","name":"_totalAssets","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_newTimelock","type":"address"}],"name":"transferTimelock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint96","name":"_l1BlockNumber","type":"uint96"},{"internalType":"uint256","name":"_maxPerSecond","type":"uint256"}],"name":"updateMaxDistributionPerSecond","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint96","name":"_l1BlockNumber","type":"uint96"},{"internalType":"uint256","name":"_totalSupply","type":"uint256"},{"internalType":"uint256","name":"_totalAssets","type":"uint256"},{"internalType":"uint256","name":"_lastRewardsDistribution","type":"uint256"},{"components":[{"internalType":"uint40","name":"cycleEnd","type":"uint40"},{"internalType":"uint40","name":"lastSync","type":"uint40"},{"internalType":"uint216","name":"rewardCycleAmount","type":"uint216"}],"internalType":"struct FraxtalERC4626TransportOracle.RewardsCycleData","name":"_data","type":"tuple"}],"name":"updatesFRAXData","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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