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// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.15;

import "./CometExt.sol";

contract CometExtAssetList is CometExt {

    /// @notice The address of the asset list factory
    address immutable public assetListFactory;

    /**
     * @notice Construct a new protocol instance
     * @param config The mapping of initial/constant parameters
     * @param assetListFactoryAddress The address of the asset list factory
     **/
    constructor(ExtConfiguration memory config, address assetListFactoryAddress) CometExt(config) {
        assetListFactory = assetListFactoryAddress;
    }
    
    uint8 internal constant MAX_ASSETS_FOR_ASSET_LIST = 24;

    function maxAssets() override external pure returns (uint8) { return MAX_ASSETS_FOR_ASSET_LIST; }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.15;

/**
 * @title Compound's Comet Configuration Interface
 * @author Compound
 */
contract CometConfiguration {
    struct ExtConfiguration {
        bytes32 name32;
        bytes32 symbol32;
    }

    struct Configuration {
        address governor;
        address pauseGuardian;
        address baseToken;
        address baseTokenPriceFeed;
        address extensionDelegate;

        uint64 supplyKink;
        uint64 supplyPerYearInterestRateSlopeLow;
        uint64 supplyPerYearInterestRateSlopeHigh;
        uint64 supplyPerYearInterestRateBase;
        uint64 borrowKink;
        uint64 borrowPerYearInterestRateSlopeLow;
        uint64 borrowPerYearInterestRateSlopeHigh;
        uint64 borrowPerYearInterestRateBase;
        uint64 storeFrontPriceFactor;
        uint64 trackingIndexScale;
        uint64 baseTrackingSupplySpeed;
        uint64 baseTrackingBorrowSpeed;
        uint104 baseMinForRewards;
        uint104 baseBorrowMin;
        uint104 targetReserves;

        AssetConfig[] assetConfigs;
    }

    struct AssetConfig {
        address asset;
        address priceFeed;
        uint8 decimals;
        uint64 borrowCollateralFactor;
        uint64 liquidateCollateralFactor;
        uint64 liquidationFactor;
        uint128 supplyCap;
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.15;

import "./CometConfiguration.sol";
import "./CometStorage.sol";
import "./CometMath.sol";

abstract contract CometCore is CometConfiguration, CometStorage, CometMath {
    struct AssetInfo {
        uint8 offset;
        address asset;
        address priceFeed;
        uint64 scale;
        uint64 borrowCollateralFactor;
        uint64 liquidateCollateralFactor;
        uint64 liquidationFactor;
        uint128 supplyCap;
    }

    /** Internal constants **/

    /// @dev The max number of assets this contract is hardcoded to support
    ///  Do not change this variable without updating all the fields throughout the contract,
    //    including the size of UserBasic.assetsIn and corresponding integer conversions.
    uint8 internal constant MAX_ASSETS = 15;

    /// @dev The max number of decimals base token can have
    ///  Note this cannot just be increased arbitrarily.
    uint8 internal constant MAX_BASE_DECIMALS = 18;

    /// @dev The max value for a collateral factor (1)
    uint64 internal constant MAX_COLLATERAL_FACTOR = FACTOR_SCALE;

    /// @dev Offsets for specific actions in the pause flag bit array
    uint8 internal constant PAUSE_SUPPLY_OFFSET = 0;
    uint8 internal constant PAUSE_TRANSFER_OFFSET = 1;
    uint8 internal constant PAUSE_WITHDRAW_OFFSET = 2;
    uint8 internal constant PAUSE_ABSORB_OFFSET = 3;
    uint8 internal constant PAUSE_BUY_OFFSET = 4;

    /// @dev The decimals required for a price feed
    uint8 internal constant PRICE_FEED_DECIMALS = 8;

    /// @dev 365 days * 24 hours * 60 minutes * 60 seconds
    uint64 internal constant SECONDS_PER_YEAR = 31_536_000;

    /// @dev The scale for base tracking accrual
    uint64 internal constant BASE_ACCRUAL_SCALE = 1e6;

    /// @dev The scale for base index (depends on time/rate scales, not base token)
    uint64 internal constant BASE_INDEX_SCALE = 1e15;

    /// @dev The scale for prices (in USD)
    uint64 internal constant PRICE_SCALE = uint64(10 ** PRICE_FEED_DECIMALS);

    /// @dev The scale for factors
    uint64 internal constant FACTOR_SCALE = 1e18;

    /// @dev The storage slot for reentrancy guard flags
    bytes32 internal constant REENTRANCY_GUARD_FLAG_SLOT = bytes32(keccak256("comet.reentrancy.guard"));

    /// @dev The reentrancy guard statuses
    uint256 internal constant REENTRANCY_GUARD_NOT_ENTERED = 0;
    uint256 internal constant REENTRANCY_GUARD_ENTERED = 1;

    /**
     * @notice Determine if the manager has permission to act on behalf of the owner
     * @param owner The owner account
     * @param manager The manager account
     * @return Whether or not the manager has permission
     */
    function hasPermission(address owner, address manager) public view returns (bool) {
        return owner == manager || isAllowed[owner][manager];
    }

    /**
     * @dev The positive present supply balance if positive or the negative borrow balance if negative
     */
    function presentValue(int104 principalValue_) internal view returns (int256) {
        if (principalValue_ >= 0) {
            return signed256(presentValueSupply(baseSupplyIndex, uint104(principalValue_)));
        } else {
            return -signed256(presentValueBorrow(baseBorrowIndex, uint104(-principalValue_)));
        }
    }

    /**
     * @dev The principal amount projected forward by the supply index
     */
    function presentValueSupply(uint64 baseSupplyIndex_, uint104 principalValue_) internal pure returns (uint256) {
        return uint256(principalValue_) * baseSupplyIndex_ / BASE_INDEX_SCALE;
    }

    /**
     * @dev The principal amount projected forward by the borrow index
     */
    function presentValueBorrow(uint64 baseBorrowIndex_, uint104 principalValue_) internal pure returns (uint256) {
        return uint256(principalValue_) * baseBorrowIndex_ / BASE_INDEX_SCALE;
    }

    /**
     * @dev The positive principal if positive or the negative principal if negative
     */
    function principalValue(int256 presentValue_) internal view returns (int104) {
        if (presentValue_ >= 0) {
            return signed104(principalValueSupply(baseSupplyIndex, uint256(presentValue_)));
        } else {
            return -signed104(principalValueBorrow(baseBorrowIndex, uint256(-presentValue_)));
        }
    }

    /**
     * @dev The present value projected backward by the supply index (rounded down)
     *  Note: This will overflow (revert) at 2^104/1e18=~20 trillion principal for assets with 18 decimals.
     */
    function principalValueSupply(uint64 baseSupplyIndex_, uint256 presentValue_) internal pure returns (uint104) {
        return safe104((presentValue_ * BASE_INDEX_SCALE) / baseSupplyIndex_);
    }

    /**
     * @dev The present value projected backward by the borrow index (rounded up)
     *  Note: This will overflow (revert) at 2^104/1e18=~20 trillion principal for assets with 18 decimals.
     */
    function principalValueBorrow(uint64 baseBorrowIndex_, uint256 presentValue_) internal pure returns (uint104) {
        return safe104((presentValue_ * BASE_INDEX_SCALE + baseBorrowIndex_ - 1) / baseBorrowIndex_);
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.15;

import "./CometExtInterface.sol";

contract CometExt is CometExtInterface {
    /** Public constants **/

    /// @notice The major version of this contract
    string public override constant version = "0";

    /** Internal constants **/

    /// @dev The EIP-712 typehash for the contract's domain
    bytes32 internal constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    /// @dev The EIP-712 typehash for allowBySig Authorization
    bytes32 internal constant AUTHORIZATION_TYPEHASH = keccak256("Authorization(address owner,address manager,bool isAllowed,uint256 nonce,uint256 expiry)");

    /// @dev The highest valid value for s in an ECDSA signature pair (0 < s < secp256k1n ÷ 2 + 1)
    ///  See https://ethereum.github.io/yellowpaper/paper.pdf #307)
    uint internal constant MAX_VALID_ECDSA_S = 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0;

    /** Immutable symbol **/

    /// @dev The ERC20 name for wrapped base token
    bytes32 internal immutable name32;

    /// @dev The ERC20 symbol for wrapped base token
    bytes32 internal immutable symbol32;

    /**
     * @notice Construct a new protocol instance
     * @param config The mapping of initial/constant parameters
     **/
    constructor(ExtConfiguration memory config) {
        name32 = config.name32;
        symbol32 = config.symbol32;
    }

    /** External getters for internal constants **/

    function baseAccrualScale() override external pure returns (uint64) { return BASE_ACCRUAL_SCALE; }
    function baseIndexScale() override external pure returns (uint64) { return BASE_INDEX_SCALE; }
    function factorScale() override external pure returns (uint64) { return FACTOR_SCALE; }
    function priceScale() override external pure returns (uint64) { return PRICE_SCALE; }
    function maxAssets() override virtual external pure returns (uint8) { return MAX_ASSETS; }

    /**
     * @notice Aggregate variables tracked for the entire market
     **/
    function totalsBasic() public override view returns (TotalsBasic memory) {
        return TotalsBasic({
            baseSupplyIndex: baseSupplyIndex,
            baseBorrowIndex: baseBorrowIndex,
            trackingSupplyIndex: trackingSupplyIndex,
            trackingBorrowIndex: trackingBorrowIndex,
            totalSupplyBase: totalSupplyBase,
            totalBorrowBase: totalBorrowBase,
            lastAccrualTime: lastAccrualTime,
            pauseFlags: pauseFlags
        });
    }

    /** Additional ERC20 functionality and approval interface **/

    /**
     * @notice Get the ERC20 name for wrapped base token
     * @return The name as a string
     */
    function name() override public view returns (string memory) {
        uint8 i;
        for (i = 0; i < 32; ) {
            if (name32[i] == 0) {
                break;
            }
            unchecked { i++; }
        }
        bytes memory name_ = new bytes(i);
        for (uint8 j = 0; j < i; ) {
            name_[j] = name32[j];
            unchecked { j++; }
        }
        return string(name_);
    }

    /**
     * @notice Get the ERC20 symbol for wrapped base token
     * @return The symbol as a string
     */
    function symbol() override external view returns (string memory) {
        uint8 i;
        for (i = 0; i < 32; ) {
            if (symbol32[i] == 0) {
                break;
            }
            unchecked { i++; }
        }
        bytes memory symbol_ = new bytes(i);
        for (uint8 j = 0; j < i; ) {
            symbol_[j] = symbol32[j];
            unchecked { j++; }
        }
        return string(symbol_);
    }

    /**
     * @notice Query the current collateral balance of an account
     * @param account The account whose balance to query
     * @param asset The collateral asset to check the balance for
     * @return The collateral balance of the account
     */
    function collateralBalanceOf(address account, address asset) override external view returns (uint128) {
        return userCollateral[account][asset].balance;
    }

    /**
     * @notice Query the total accrued base rewards for an account
     * @param account The account to query
     * @return The accrued rewards, scaled by `BASE_ACCRUAL_SCALE`
     */
    function baseTrackingAccrued(address account) override external view returns (uint64) {
        return userBasic[account].baseTrackingAccrued;
    }

    /**
      * @notice Approve or disallow `spender` to transfer on sender's behalf
      * @dev Note: this binary approval is unlike most other ERC20 tokens
      * @dev Note: this grants full approval for spender to manage *all* the owner's assets
      * @param spender The address of the account which may transfer tokens
      * @param amount Either uint.max (to allow) or zero (to disallow)
      * @return Whether or not the approval change succeeded
      */
    function approve(address spender, uint256 amount) override external returns (bool) {
        if (amount == type(uint256).max) {
            allowInternal(msg.sender, spender, true);
        } else if (amount == 0) {
            allowInternal(msg.sender, spender, false);
        } else {
            revert BadAmount();
        }
        return true;
    }

    /**
      * @notice Get the current allowance from `owner` for `spender`
      * @dev Note: this binary allowance is unlike most other ERC20 tokens
      * @dev Note: this allowance allows spender to manage *all* the owner's assets
      * @param owner The address of the account which owns the tokens to be spent
      * @param spender The address of the account which may transfer tokens
      * @return Either uint.max (spender is allowed) or zero (spender is disallowed)
      */
    function allowance(address owner, address spender) override external view returns (uint256) {
        return hasPermission(owner, spender) ? type(uint256).max : 0;
    }

    /**
     * @notice Allow or disallow another address to withdraw, or transfer from the sender
     * @param manager The account which will be allowed or disallowed
     * @param isAllowed_ Whether to allow or disallow
     */
    function allow(address manager, bool isAllowed_) override external {
        allowInternal(msg.sender, manager, isAllowed_);
    }

    /**
     * @dev Stores the flag marking whether the manager is allowed to act on behalf of owner
     */
    function allowInternal(address owner, address manager, bool isAllowed_) internal {
        isAllowed[owner][manager] = isAllowed_;
        emit Approval(owner, manager, isAllowed_ ? type(uint256).max : 0);
    }

    /**
     * @notice Sets authorization status for a manager via signature from signatory
     * @param owner The address that signed the signature
     * @param manager The address to authorize (or rescind authorization from)
     * @param isAllowed_ Whether to authorize or rescind authorization from manager
     * @param nonce The next expected nonce value for the signatory
     * @param expiry Expiration time for the signature
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function allowBySig(
        address owner,
        address manager,
        bool isAllowed_,
        uint256 nonce,
        uint256 expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) override external {
        if (uint256(s) > MAX_VALID_ECDSA_S) revert InvalidValueS();
        // v ∈ {27, 28} (source: https://ethereum.github.io/yellowpaper/paper.pdf #308)
        if (v != 27 && v != 28) revert InvalidValueV();
        bytes32 domainSeparator = keccak256(abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name())), keccak256(bytes(version)), block.chainid, address(this)));
        bytes32 structHash = keccak256(abi.encode(AUTHORIZATION_TYPEHASH, owner, manager, isAllowed_, nonce, expiry));
        bytes32 digest = keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
        address signatory = ecrecover(digest, v, r, s);
        if (signatory == address(0)) revert BadSignatory();
        if (owner != signatory) revert BadSignatory();
        if (nonce != userNonce[signatory]++) revert BadNonce();
        if (block.timestamp >= expiry) revert SignatureExpired();
        allowInternal(signatory, manager, isAllowed_);
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.15;

import "./CometCore.sol";

/**
 * @title Compound's Comet Ext Interface
 * @notice An efficient monolithic money market protocol
 * @author Compound
 */
abstract contract CometExtInterface is CometCore {
    error BadAmount();
    error BadNonce();
    error BadSignatory();
    error InvalidValueS();
    error InvalidValueV();
    error SignatureExpired();

    function allow(address manager, bool isAllowed) virtual external;
    function allowBySig(address owner, address manager, bool isAllowed, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) virtual external;

    function collateralBalanceOf(address account, address asset) virtual external view returns (uint128);
    function baseTrackingAccrued(address account) virtual external view returns (uint64);

    function baseAccrualScale() virtual external view returns (uint64);
    function baseIndexScale() virtual external view returns (uint64);
    function factorScale() virtual external view returns (uint64);
    function priceScale() virtual external view returns (uint64);

    function maxAssets() virtual external view returns (uint8);

    function totalsBasic() virtual external view returns (TotalsBasic memory);

    function version() virtual external view returns (string memory);

    /**
      * ===== ERC20 interfaces =====
      * Does not include the following functions/events, which are defined in `CometMainInterface` instead:
      * - function decimals() virtual external view returns (uint8)
      * - function totalSupply() virtual external view returns (uint256)
      * - function transfer(address dst, uint amount) virtual external returns (bool)
      * - function transferFrom(address src, address dst, uint amount) virtual external returns (bool)
      * - function balanceOf(address owner) virtual external view returns (uint256)
      * - event Transfer(address indexed from, address indexed to, uint256 amount)
      */
    function name() virtual external view returns (string memory);
    function symbol() virtual external view returns (string memory);

    /**
      * @notice Approve `spender` to transfer up to `amount` from `src`
      * @dev This will overwrite the approval amount for `spender`
      *  and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)
      * @param spender The address of the account which may transfer tokens
      * @param amount The number of tokens that are approved (-1 means infinite)
      * @return Whether or not the approval succeeded
      */
    function approve(address spender, uint256 amount) virtual external returns (bool);

    /**
      * @notice Get the current allowance from `owner` for `spender`
      * @param owner The address of the account which owns the tokens to be spent
      * @param spender The address of the account which may transfer tokens
      * @return The number of tokens allowed to be spent (-1 means infinite)
      */
    function allowance(address owner, address spender) virtual external view returns (uint256);

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

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.15;

/**
 * @title Compound's Comet Math Contract
 * @dev Pure math functions
 * @author Compound
 */
contract CometMath {
    /** Custom errors **/

    error InvalidUInt64();
    error InvalidUInt104();
    error InvalidUInt128();
    error InvalidInt104();
    error InvalidInt256();
    error NegativeNumber();

    function safe64(uint n) internal pure returns (uint64) {
        if (n > type(uint64).max) revert InvalidUInt64();
        return uint64(n);
    }

    function safe104(uint n) internal pure returns (uint104) {
        if (n > type(uint104).max) revert InvalidUInt104();
        return uint104(n);
    }

    function safe128(uint n) internal pure returns (uint128) {
        if (n > type(uint128).max) revert InvalidUInt128();
        return uint128(n);
    }

    function signed104(uint104 n) internal pure returns (int104) {
        if (n > uint104(type(int104).max)) revert InvalidInt104();
        return int104(n);
    }

    function signed256(uint256 n) internal pure returns (int256) {
        if (n > uint256(type(int256).max)) revert InvalidInt256();
        return int256(n);
    }

    function unsigned104(int104 n) internal pure returns (uint104) {
        if (n < 0) revert NegativeNumber();
        return uint104(n);
    }

    function unsigned256(int256 n) internal pure returns (uint256) {
        if (n < 0) revert NegativeNumber();
        return uint256(n);
    }

    function toUInt8(bool x) internal pure returns (uint8) {
        return x ? 1 : 0;
    }

    function toBool(uint8 x) internal pure returns (bool) {
        return x != 0;
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.15;

/**
 * @title Compound's Comet Storage Interface
 * @dev Versions can enforce append-only storage slots via inheritance.
 * @author Compound
 */
contract CometStorage {
    // 512 bits total = 2 slots
    struct TotalsBasic {
        // 1st slot
        uint64 baseSupplyIndex;
        uint64 baseBorrowIndex;
        uint64 trackingSupplyIndex;
        uint64 trackingBorrowIndex;
        // 2nd slot
        uint104 totalSupplyBase;
        uint104 totalBorrowBase;
        uint40 lastAccrualTime;
        uint8 pauseFlags;
    }

    struct TotalsCollateral {
        uint128 totalSupplyAsset;
        uint128 _reserved;
    }

    struct UserBasic {
        int104 principal;
        uint64 baseTrackingIndex;
        uint64 baseTrackingAccrued;
        uint16 assetsIn;
        uint8 _reserved;
    }

    struct UserCollateral {
        uint128 balance;
        uint128 _reserved;
    }

    struct LiquidatorPoints {
        uint32 numAbsorbs;
        uint64 numAbsorbed;
        uint128 approxSpend;
        uint32 _reserved;
    }

    /// @dev Aggregate variables tracked for the entire market
    uint64 internal baseSupplyIndex;
    uint64 internal baseBorrowIndex;
    uint64 internal trackingSupplyIndex;
    uint64 internal trackingBorrowIndex;
    uint104 internal totalSupplyBase;
    uint104 internal totalBorrowBase;
    uint40 internal lastAccrualTime;
    uint8 internal pauseFlags;

    /// @notice Aggregate variables tracked for each collateral asset
    mapping(address => TotalsCollateral) public totalsCollateral;

    /// @notice Mapping of users to accounts which may be permitted to manage the user account
    mapping(address => mapping(address => bool)) public isAllowed;

    /// @notice The next expected nonce for an address, for validating authorizations via signature
    mapping(address => uint) public userNonce;

    /// @notice Mapping of users to base principal and other basic data
    mapping(address => UserBasic) public userBasic;

    /// @notice Mapping of users to collateral data per collateral asset
    mapping(address => mapping(address => UserCollateral)) public userCollateral;

    /// @notice Mapping of magic liquidator points
    mapping(address => LiquidatorPoints) public liquidatorPoints;
}

{
  "libraries": {},
  "optimizer": {
    "details": {
      "yulDetails": {
        "optimizerSteps": "dhfoDgvulfnTUtnIf [xa[r]scLM cCTUtTOntnfDIul Lcul Vcul [j] Tpeul xa[rul] xa[r]cL gvif CTUca[r]LsTOtfDnca[r]Iulc] jmul[jul] VcTOcul jmul"
      }
    },
    "enabled": true,
    "runs": 1
  },
  "outputSelection": {
    "*": {
      "*": [
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        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "viaIR": true
}

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[{"inputs":[{"components":[{"internalType":"bytes32","name":"name32","type":"bytes32"},{"internalType":"bytes32","name":"symbol32","type":"bytes32"}],"internalType":"struct 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436f6d706f756e6420555344650000000000000000000000000000000000000063555344657633000000000000000000000000000000000000000000000000000000000000000000000000000daf7a2772c84a82d1d46a4b628151e6d7f5b202

-----Decoded View---------------
Arg [0] : config (tuple): 
     Arg [1] : name32 (bytes32): 0x436f6d706f756e64205553446500000000000000000000000000000000000000
     Arg [2] : symbol32 (bytes32): 0x6355534465763300000000000000000000000000000000000000000000000000

Arg [1] : assetListFactoryAddress (address): 0x0dAf7A2772C84A82D1D46a4b628151e6D7F5b202

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 436f6d706f756e64205553446500000000000000000000000000000000000000
Arg [1] : 6355534465763300000000000000000000000000000000000000000000000000
Arg [2] : 0000000000000000000000000daf7a2772c84a82d1d46a4b628151e6d7f5b202