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// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity 0.8.28;
import {Initializable} from  "openzeppelin5-upgradeable/proxy/utils/Initializable.sol";
import {IERC20Metadata} from "openzeppelin5/token/ERC20/extensions/IERC20Metadata.sol";
import {AggregatorV3Interface} from "chainlink/v0.8/interfaces/AggregatorV3Interface.sol";
import {ISiloOracle} from "silo-core/contracts/interfaces/ISiloOracle.sol";
import {OracleNormalization} from "../lib/OracleNormalization.sol";
import {ChainlinkV3OracleConfig} from "./ChainlinkV3OracleConfig.sol";
import {IChainlinkV3Oracle} from "../interfaces/IChainlinkV3Oracle.sol";
contract ChainlinkV3Oracle is IChainlinkV3Oracle, ISiloOracle, Initializable {
    ChainlinkV3OracleConfig public oracleConfig;
    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }
    /// @notice validation of config is checked in factory, therefore you should not deploy and initialize directly
    /// use factory always.
    function initialize(ChainlinkV3OracleConfig _configAddress) external virtual initializer {
        oracleConfig = _configAddress;
        emit ChainlinkV3ConfigDeployed(_configAddress);
    }
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.20;
/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
/**
 * @dev Interface for the optional metadata functions from the ERC-20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);
    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);
    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
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);
}
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// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;
interface ISiloOracle {
    /// @notice Hook function to call before `quote` function reads price
    /// @dev This hook function can be used to change state right before the price is read. For example it can be used
    ///      for curve read only reentrancy protection. In majority of implementations this will be an empty function.
    ///      WARNING: reverts are propagated to Silo so if `beforeQuote` reverts, Silo reverts as well.
    /// @param _baseToken Address of priced token
    function beforeQuote(address _baseToken) external;
    /// @return quoteAmount Returns quote price for _baseAmount of _baseToken
    /// @param _baseAmount Amount of priced token
    /// @param _baseToken Address of priced token
    function quote(uint256 _baseAmount, address _baseToken) external view returns (uint256 quoteAmount);
    /// @return address of token in which quote (price) is denominated
    function quoteToken() external view returns (address);
}
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// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.8.20;
import {IERC20Metadata} from "openzeppelin5/token/ERC20/extensions/IERC20Metadata.sol";
import {TokenHelper} from "silo-core/contracts/lib/TokenHelper.sol";
/// @notice please read carefully unchecked comments, there are some requirements tht must be met in order to not
/// over/under flow
/// @dev Rounding error policy.
/// We're always rounding down by using build-in solidity way for division.
///
/// During normalization we're executing division by `_normalizationDivider` (unless there is multiplicator)
/// and `_secondPrice` (in case second price exist). You can expect rounding errors to be in exclusive range of (0, 1)
/// when doing division. What does it means? This means, that you can be short by up to 1 wei on result.
/// eg. when normalising 12_345 (value with 3 decimals) to 2 decimals representation you lose last digit and end result
/// will be 12_34.
/// What are consequences for protocol?
/// Eg. if 987 of tokens A is worth 12.34 tokens B (after normalization), by losing 0.005 we made tokens A worth a bit
/// more than they really are. If we would round up, then tokens A would be a bit less expensive.
/// Keep in mind we are talking tiny values. There is no argument that can tell which approach is correct.
/// Considering that prices themselves are changing constantly (if you think about it, they are just random numbers
/// close to previous value) and even TWAP price can be manipulated up to some level, if we compare this to rounding
/// error, the rounding error has no meaning at all.
/// Most important part is: how are we using prices in Silo and how rounding error affects the system?
/// We're using prices to calculate LTV. We're deciding how much of token you can borrow but once you borrow you need to
/// repay that amount (plus interest). Price of the token has no influence on how much you repay.
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// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity 0.8.28;
import {IERC20Metadata} from "openzeppelin5/token/ERC20/extensions/IERC20Metadata.sol";
import {AggregatorV3Interface} from "chainlink/v0.8/interfaces/AggregatorV3Interface.sol";
import {ISiloOracle} from "silo-core/contracts/interfaces/ISiloOracle.sol";
import {IChainlinkV3Oracle} from "../interfaces/IChainlinkV3Oracle.sol";
import {Layer1OracleConfig} from "../_common/Layer1OracleConfig.sol";
contract ChainlinkV3OracleConfig is Layer1OracleConfig {
    /// @dev Chainlink aggregator
    AggregatorV3Interface internal immutable _AGGREGATOR; // solhint-disable-line var-name-mixedcase
    /// @dev secondary Chainlink aggregator to convert price to quote
    AggregatorV3Interface internal immutable _SECONDARY_AGGREGATOR; // solhint-disable-line var-name-mixedcase
    /// @dev Threshold used to determine if the price returned by the _SECONDARY_AGGREGATOR is valid
    uint256 internal immutable _SECONDARY_HEARTBEAT; // solhint-disable-line var-name-mixedcase
    /// @dev this can be set to true to convert primary price into price denominated in quote
    /// assuming that both AGGREGATORS providing price in the same token
    bool internal immutable _CONVERT_TO_QUOTE; // solhint-disable-line var-name-mixedcase
    /// @dev all verification should be done by factory
    constructor(IChainlinkV3Oracle.ChainlinkV3DeploymentConfig memory _config)
        Layer1OracleConfig(
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// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;
import {IERC20Metadata} from "openzeppelin5/token/ERC20/extensions/IERC20Metadata.sol";
import {AggregatorV3Interface} from "chainlink/v0.8/interfaces/AggregatorV3Interface.sol";
import {ChainlinkV3OracleConfig} from "../chainlinkV3/ChainlinkV3OracleConfig.sol";
interface IChainlinkV3Oracle {
    /// @dev config based on which new oracle will be deployed
    /// @notice there is no way to check if aggregators match tokens, so it is users job to verify config.
    /// @param primaryAggregator used to read price from chainlink, if it can not provide price in quote token,
    /// then you have to setup secondary one that will do the job
    /// @param secondaryAggregator if set, it is used translate primary price into quote price eg:
    /// primary price is ABC/USD and secondary is ETH/USD, then result will be price in ABC/ETH
    /// @param baseToken base token address, it must have decimals() method available
    /// @param quoteToken quote toke address, it must have decimals() method available
    /// @param primaryHeartbeat heartbeat of primary price
    /// @param secondaryHeartbeat heartbeat of secondary price
    /// @param normalizationDivider divider that will be used in oracle to normalize price
    /// @param normalizationMultiplier multiplier that will be used in oracle to normalize price
    struct ChainlinkV3DeploymentConfig {
        IERC20Metadata baseToken;
        IERC20Metadata quoteToken;
        AggregatorV3Interface primaryAggregator;
        uint32 primaryHeartbeat;
        AggregatorV3Interface secondaryAggregator;
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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);
    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
    /**
     * @dev Returns the value of tokens in existence.
     */
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// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.28;
import {IERC20Metadata} from "openzeppelin5/token/ERC20/extensions/IERC20Metadata.sol";
import {IsContract} from "./IsContract.sol";
library TokenHelper {
    uint256 private constant _BYTES32_SIZE = 32;
    error TokenIsNotAContract();
    function assertAndGetDecimals(address _token) internal view returns (uint256) {
        (bool hasMetadata, bytes memory data) =
            _tokenMetadataCall(_token, abi.encodeCall(IERC20Metadata.decimals, ()));
        // decimals() is optional in the ERC20 standard, so if metadata is not accessible
        // we assume there are no decimals and use 0.
        if (!hasMetadata) {
            return 0;
        }
        return abi.decode(data, (uint8));
    }
    /// @dev Returns the symbol for the provided ERC20 token.
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// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;
import {IERC20Metadata} from "openzeppelin5/token/ERC20/extensions/IERC20Metadata.sol";
/// @notice to keep config contract size low (this is the one that will be deployed each time)
/// factory contract take over verification. You should not deploy or use config that was not created by factory.
/// @dev This is common config for Layer1 oracles
abstract contract Layer1OracleConfig {
    /// @dev price must be updated at least once every `_HEARTBEAT` seconds, otherwise something is wrong
    uint256 internal immutable _HEARTBEAT; // solhint-disable-line var-name-mixedcase
    /// @dev constant used for normalising price
    uint256 internal immutable _DECIMALS_NORMALIZATION_DIVIDER; // solhint-disable-line var-name-mixedcase
    /// @dev constant used for normalising price
    uint256 internal immutable _DECIMALS_NORMALIZATION_MULTIPLIER; // solhint-disable-line var-name-mixedcase
    IERC20Metadata internal immutable _BASE_TOKEN; // solhint-disable-line var-name-mixedcase
    IERC20Metadata internal immutable _QUOTE_TOKEN; // solhint-disable-line var-name-mixedcase
    /// @dev all verification should be done by factory
    constructor(
        IERC20Metadata _baseToken,
        IERC20Metadata _quoteToken,
        uint256 _heartbeat,
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// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.24;
library IsContract {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
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{
  "remappings": [
    "forge-std/=gitmodules/forge-std/src/",
    "silo-foundry-utils/=gitmodules/silo-foundry-utils/contracts/",
    "properties/=gitmodules/crytic/properties/contracts/",
    "silo-core/=silo-core/",
    "silo-oracles/=silo-oracles/",
    "silo-vaults/=silo-vaults/",
    "ve-silo/=ve-silo/",
    "@openzeppelin/=gitmodules/openzeppelin-contracts-5/contracts/",
    "morpho-blue/=gitmodules/morpho-blue/src/",
    "openzeppelin5/=gitmodules/openzeppelin-contracts-5/contracts/",
    "openzeppelin5-upgradeable/=gitmodules/openzeppelin-contracts-upgradeable-5/contracts/",
    "chainlink/=gitmodules/chainlink/contracts/src/",
    "chainlink-ccip/=gitmodules/chainlink-ccip/contracts/src/",
    "uniswap/=gitmodules/uniswap/",
    "@uniswap/v3-core/=gitmodules/uniswap/v3-core/",
    "balancer-labs/v2-solidity-utils/=external/balancer-v2-monorepo/pkg/solidity-utils/contracts/",
    "balancer-labs/v2-interfaces/=external/balancer-v2-monorepo/pkg/interfaces/contracts/",
    "balancer-labs/v2-liquidity-mining/=external/balancer-v2-monorepo/pkg/liquidity-mining/contracts/",
    "pyth-sdk-solidity/=gitmodules/pyth-sdk-solidity/target_chains/ethereum/sdk/solidity/",
    "@balancer-labs/=node_modules/@balancer-labs/",
    "@ensdomains/=node_modules/@ensdomains/",
    "@openzeppelin/contracts-upgradeable/=gitmodules/openzeppelin-contracts-upgradeable-5/contracts/",
    "@openzeppelin/contracts/=gitmodules/openzeppelin-contracts-5/contracts/",
    "@solidity-parser/=node_modules/@solidity-parser/",
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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AddressZero","type":"error"},{"inputs":[],"name":"AggregatorsAreTheSame","type":"error"},{"inputs":[],"name":"AssetNotSupported","type":"error"},{"inputs":[],"name":"BaseAmountOverflow","type":"error"},{"inputs":[],"name":"HugeDivider","type":"error"},{"inputs":[],"name":"HugeMultiplier","type":"error"},{"inputs":[],"name":"InvalidEthAggregatorDecimals","type":"error"},{"inputs":[],"name":"InvalidEthHeartbeat","type":"error"},{"inputs":[],"name":"InvalidHeartbeat","type":"error"},{"inputs":[],"name":"InvalidInitialization","type":"error"},{"inputs":[],"name":"InvalidPrice","type":"error"},{"inputs":[],"name":"InvalidSecondPrice","type":"error"},{"inputs":[],"name":"MultiplierAndDividerZero","type":"error"},{"inputs":[],"name":"NotInitializing","type":"error"},{"inputs":[],"name":"QuoteTokenNotMatchEth","type":"error"},{"inputs":[],"name":"TokensAreTheSame","type":"error"},{"inputs":[],"name":"ZeroQuote","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":true,"internalType":"contract AggregatorV3Interface","name":"aggregator","type":"address"}],"name":"AggregatorDisabled","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"contract ChainlinkV3OracleConfig","name":"configAddress","type":"address"}],"name":"ChainlinkV3ConfigDeployed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint64","name":"version","type":"uint64"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":true,"internalType":"contract AggregatorV3Interface","name":"aggregator","type":"address"},{"indexed":false,"internalType":"bool","name":"convertToQuote","type":"bool"}],"name":"NewAggregator","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"uint256","name":"heartbeat","type":"uint256"}],"name":"NewHeartbeat","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"heartbeat","type":"uint256"}],"name":"NewQuoteAggregatorHeartbeat","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"beforeQuote","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bool","name":"_primary","type":"bool"}],"name":"getAggregatorPrice","outputs":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"uint256","name":"price","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract ChainlinkV3OracleConfig","name":"_configAddress","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"oracleConfig","outputs":[{"internalType":"contract ChainlinkV3OracleConfig","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_baseAmount","type":"uint256"},{"internalType":"address","name":"_baseToken","type":"address"}],"name":"quote","outputs":[{"internalType":"uint256","name":"quoteAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"quoteToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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