// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.26;

import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";

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

/// @title ChainlinkOracleFeed
/// @author luoyhang003
/// @notice Oracle adapter that integrates with Chainlink price feeds.
/// @dev Inherits from the abstract OracleFeed contract and implements the
///      peek function by querying a Chainlink AggregatorV3Interface.
contract ChainlinkOracleFeed is OracleFeed {
    /*//////////////////////////////////////////////////////////////////////////
                                    STATE VARIABLES
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Chainlink price feed contract (AggregatorV3Interface).
    /// @dev Immutable after deployment to ensure oracle integrity.
    AggregatorV3Interface public immutable priceFeed;

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

    /// @notice Deploys the Chainlink oracle feed wrapper.
    /// @param _token The address of the token this oracle is associated with.
    /// @param _name A human-readable name for this oracle feed.
    /// @param _priceFeed The address of the Chainlink AggregatorV3 price feed.
    constructor(
        address _token,
        string memory _name,
        address _priceFeed
    ) OracleFeed(_token, _name) {
        if (_priceFeed == address(0)) revert Errors.ZeroAddress();

        priceFeed = AggregatorV3Interface(_priceFeed);
    }

    /*//////////////////////////////////////////////////////////////////////////
                                    VIEW FUNCTIONS
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Returns the latest price from the Chainlink feed, normalized to 18 decimals.
    /// @dev Performs several safety checks:
    ///      - Ensures the returned price is positive.
    ///      - Ensures the round is not stale.
    ///      - Ensures the round data is complete and not from the future.
    ///      - Adjusts decimals from the Chainlink feed to a standard 18-decimal format.
    /// @return price_ The latest valid price, scaled to 18 decimals.
    function peek() external view override returns (uint256 price_) {
        (
            uint80 roundId,
            int256 answer,
            ,
            uint256 updatedAt,
            uint80 answeredInRound
        ) = priceFeed.latestRoundData();

        if (answer <= 0) revert Errors.InvalidPrice();
        if (answeredInRound < roundId) revert Errors.StalePrice();
        if (updatedAt == 0 || updatedAt > block.timestamp)
            revert Errors.IncompleteRound();

        uint8 decimals = priceFeed.decimals();

        // Convert int256 to uint256 after validation, and normalize to 18 decimals
        if (decimals > 18) {
            // scale down
            return uint256(answer) / (10 ** (decimals - 18));
        } else {
            // scale up
            return uint256(answer) * (10 ** (18 - decimals));
        }
    }
}

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

// solhint-disable-next-line interface-starts-with-i
interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

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

  function version() external view returns (uint256);

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

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

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.26;

/// @title OracleFeed
/// @author luoyhang003
/// @notice Abstract contract for oracle price feeds. Provides a standard interface
///         for retrieving asset prices.
/// @dev This contract is meant to be inherited by specific oracle implementations
///      that define the logic for fetching asset prices.
abstract contract OracleFeed {
    /*//////////////////////////////////////////////////////////////////////////
                                    STATE VARIABLES
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice The token address associated with this oracle feed.
    /// @dev Immutable after deployment to ensure the oracle is tied to a specific token.
    address public immutable token;

    /// @notice The human-readable name of the oracle feed.
    /// @dev Can be used for UI or off-chain identification purposes.
    string public name;

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

    /// @notice Sets the token address and feed name during deployment.
    /// @param _token The address of the token this oracle is associated with.
    /// @param _name The descriptive name for this oracle feed.
    constructor(address _token, string memory _name) {
        token = _token;
        name = _name;
    }

    /*//////////////////////////////////////////////////////////////////////////
                                    VIEW FUNCTIONS
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Returns the current price of the specified asset.
    /// @dev Implementations must override this function to provide actual price logic.
    /// @return price_ The price of the asset with 18 decimals of precision.
    function peek() external view virtual returns (uint256 price_);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.26;

/// @title Errors Library
/// @author luoyhang003
/// @notice Centralized custom errors for all contracts in the protocol.
/// @dev Each error saves gas compared to revert strings. The @dev comment
///      also includes the corresponding 4-byte selector for debugging
///      and off-chain tooling.
library Errors {
    /*//////////////////////////////////////////////////////////////////////////
                                    GENERAL
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when array lengths do not match or are zero.
    /// @dev Selector: 0x9d89020a
    error InvalidArrayLength();

    /// @notice Thrown when a provided address is zero.
    /// @dev Selector: 0xd92e233d
    error ZeroAddress();

    /// @notice Thrown when a provided amount is zero.
    /// @dev Selector: 0x1f2a2005
    error ZeroAmount();

    /// @notice Thrown when an index is out of bounds.
    /// @dev Selector: 0x4e23d035
    error IndexOutOfBounds();

    /// @notice Thrown when a user is not whitelisted but tries to interact.
    /// @dev Selector: 0x2ba75b25
    error UserNotWhitelisted();

    /// @notice Thrown when a token has invalid decimals (e.g., >18).
    /// @dev Selector: 0xd25598a0
    error InvalidDecimals();

    /// @notice Thrown when an asset is not supported.
    /// @dev Selector: 0x24a01144
    error UnsupportedAsset();

    /// @notice Thrown when trying to add an already added asset.
    /// @dev Selector: 0x5ed26801
    error AssetAlreadyAdded();

    /// @notice Thrown when trying to remove an asset that was already removed.
    /// @dev Selector: 0x422afd8f
    error AssetAlreadyRemoved();

    /// @notice Thrown when a common token address conflict with the vault token address.
    /// @dev Selector: 0x8a7ea521
    error ConflictiveToken();

    /// @notice Thrown when an array is reach to the length limit.
    /// @dev Selector: 0x951becfa
    error ExceedArrayLengthLimit();

    /*//////////////////////////////////////////////////////////////////////////
                                    Token.sol
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when transfer is attempted by/for a blacklisted address.
    /// @dev Selector: 0x6554e8c5
    error TransferBlacklisted();

    /*//////////////////////////////////////////////////////////////////////////
                                    DepositVault.sol
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when deposits are paused.
    /// @dev Selector: 0x35edea30
    error DepositPaused();

    /// @notice Thrown when a deposit exceeds per-token deposit cap.
    /// @dev Selector: 0xcc60dc5b
    error ExceedTokenDepositCap();

    /// @notice Thrown when a deposit exceeds global deposit cap.
    /// @dev Selector: 0x5054f250
    error ExceedTotalDepositCap();

    /// @notice Thrown when minting results in zero shares.
    /// @dev Selector: 0x1d31001e
    error MintZeroShare();

    /// @notice Thrown when attempting to deposit zero assets.
    /// @dev Selector: 0xd69b89cc
    error DepositZeroAsset();

    /// @notice Thrown when the oracle for an asset is invalid or missing.
    /// @dev Selector: 0x9589a27d
    error InvalidOracle();

    /*//////////////////////////////////////////////////////////////////////////
                                WithdrawController.sol
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when withdrawals are paused.
    /// @dev Selector: 0xe0a39803
    error WithdrawPaused();

    /// @notice Thrown when attempting to request withdrawal of zero shares.
    /// @dev Selector: 0xef9c351b
    error RequestZeroShare();

    /// @notice Thrown when a withdrawal receipt has invalid status for the operation.
    /// @dev Selector: 0x3bb3ba88
    error InvalidReceiptStatus();

    /// @notice Thrown when a caller is not the original withdrawal requester.
    /// @dev Selector: 0xe39da59e
    error NotRequester();

    /// @notice Thrown when a caller is blacklisted.
    /// @dev Selector: 0x473250af
    error UserBlacklisted();

    /*//////////////////////////////////////////////////////////////////////////
                                  AssetsRouter.sol
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when a recipient is already added.
    /// @dev Selector: 0xce2c4eb3
    error RecipientAlreadyAdded();

    /// @notice Thrown when a recipient is already removed.
    /// @dev Selector: 0x1c7dcc84
    error RecipientAlreadyRemoved();

    /// @notice Thrown when attempting to set auto-route to its current state.
    /// @dev Selector: 0xdf2e473d
    error InvalidRouteEnabledStatus();

    /// @notice Thrown when a non-registered recipient is used.
    /// @dev Selector: 0xf29851db
    error NotRouterRecipient();

    /// @notice Thrown when attempting to remove the currently active recipient.
    /// @dev Selector: 0xa453bd1b
    error RemoveActiveRouter();

    /// @notice Thrown when attempting to manual route the asstes when auto route is enabled.
    /// @dev Selector: 0x92d56bf7
    error AutoRouteEnabled();

    /// @notice Thrown when setting the same router address.
    /// @dev Selector: 0x23b920b6
    error SameRouterAddress();

    /*//////////////////////////////////////////////////////////////////////////
                                  AccessRegistry.sol
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when trying to blacklist an already blacklisted user.
    /// @dev Selector: 0xf53de75f
    error AlreadyBlacklisted();

    /// @notice Thrown when trying to whitelist an already whitelisted user.
    /// @dev Selector: 0xb73e95e1
    error AlreadyWhitelisted();

    /// @notice Reverts when the requested state matches the current state.
    /// @dev Selector: 0x3fbc93f3
    error AlreadyInSameState();

    /*//////////////////////////////////////////////////////////////////////////
                                  OracleRegister.sol
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when an oracle is already registered for an asset.
    /// @dev Selector: 0x652a449e
    error OracleAlreadyAdded();

    /// @notice Thrown when an oracle does not exist for an asset.
    /// @dev Selector: 0x4dca4f7d
    error OracleNotExist();

    /// @notice Thrown when price deviation exceeds maximum allowed.
    /// @dev Selector: 0x8774ad87
    error ExceedMaxDeviation();

    /// @notice Thrown when price updates are attempted too frequently.
    /// @dev Selector: 0x8f46908a
    error PriceUpdateTooFrequent();

    /// @notice Thrown when a price validity period has expired.
    /// @dev Selector: 0x7c9d063a
    error PriceValidityExpired();

    /// @notice Thrown when a price is zero.
    /// @dev Selector: 0x10256287
    error InvalidZeroPrice();

    /*//////////////////////////////////////////////////////////////////////////
                                  ParamRegister.sol
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when tolerance basis points exceed maximum deviation.
    /// @dev Selector: 0xb8d855e2
    error ExceedMaxDeviationBps();

    /// @notice Thrown when price update interval is invalid.
    /// @dev Selector: 0xfff67f52
    error InvalidPriceUpdateInterval();

    /// @notice Thrown when price validity duration exceeds allowed maximum.
    /// @dev Selector: 0x6eca7e24
    error PriceMaxValidityExceeded();

    /// @notice Thrown when mint fee rate exceeds maximum allowed.
    /// @dev Selector: 0x8f59faf8
    error ExceedMaxMintFeeRate();

    /// @notice Thrown when redeem fee rate exceeds maximum allowed.
    /// @dev Selector: 0x86871089
    error ExceedMaxRedeemFeeRate();

    /*//////////////////////////////////////////////////////////////////////////
                              ChainlinkOracleFeed.sol
    //////////////////////////////////////////////////////////////////////////*/

    /// @notice Thrown when a reported price is invalid.
    /// @dev Selector: 0x00bfc921
    error InvalidPrice();

    /// @notice Thrown when a reported price is stale.
    /// @dev Selector: 0x19abf40e
    error StalePrice();

    /// @notice Thrown when a Chainlink round is incomplete.
    /// @dev Selector: 0x8ad52bdd
    error IncompleteRound();
}

{
  "remappings": [
    "@uniswap/v3-periphery/contracts/=lib/v3-periphery/contracts/",
    "@chainlink/contracts/src/v0.8/=lib/chainlink-evm/contracts/src/v0.8/shared/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "chainlink-evm/=lib/chainlink-evm/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "v3-periphery/=lib/v3-periphery/contracts/"
  ],
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": false
}

• No Contract Security Audit Submitted- Submit Audit Here

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