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// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;

import '../stores/AssetStore.sol';
import '../stores/DataStore.sol';
import '../stores/FundStore.sol';
import '../stores/PoolStore.sol';

import '../utils/Roles.sol';

/**
 * @title  Pool
 * @notice Users can deposit supported assets to back trader profits and receive
 *         a share of trader losses. Each asset pool is siloed, e.g. the ETH
 *         pool is independent from the USDC pool.
 */
contract Pool is Roles {
    // Constants
    uint256 public constant UNIT = 10 ** 18;
    uint256 public constant BPS_DIVIDER = 10000;

    // Events
    event PoolDeposit(
        address indexed user,
        address indexed asset,
        uint256 amount,
        uint256 feeAmount,
        uint256 clpAmount,
        uint256 poolBalance
    );

    event PoolWithdrawal(
        address indexed user,
        address indexed asset,
        uint256 amount,
        uint256 feeAmount,
        uint256 clpAmount,
        uint256 poolBalance
    );

    event PoolPayIn(
        address indexed user,
        address indexed asset,
        string market,
        uint256 amount,
        uint256 bufferToPoolAmount,
        uint256 poolBalance,
        uint256 bufferBalance
    );

    event PoolPayOut(
        address indexed user,
        address indexed asset,
        string market,
        uint256 amount,
        uint256 poolBalance,
        uint256 bufferBalance
    );

    // Contracts
    DataStore public DS;

    AssetStore public assetStore;
    FundStore public fundStore;
    PoolStore public poolStore;

    // Ephemeral storage
    mapping(address => bool) private whitelistedKeepers;
    mapping(address => int256) private globalUPLs; // asset => upl

    /// @dev Initializes DataStore address
    constructor(RoleStore rs, DataStore ds) Roles(rs) {
        DS = ds;
    }

    /// @notice Initializes protocol contracts
    /// @dev Only callable by governance
    function link() external onlyGov {
        assetStore = AssetStore(DS.getAddress('AssetStore'));
        fundStore = FundStore(payable(DS.getAddress('FundStore')));
        poolStore = PoolStore(DS.getAddress('PoolStore'));
    }

    // -- Ephemeral storage -- //

    /// @notice Whitelisted keeper that can update global UPL
    /// @param keeper Keeper address
    function setWhitelistedKeeper(address keeper, bool isActive) external onlyGov {
        whitelistedKeepers[keeper] = isActive;
    }

    /// @notice Set global UPL, called by whitelisted keeper
    /// @param assets Asset addresses
    /// @param upls Corresponding total unrealized profit / loss
    function setGlobalUPLs(address[] calldata assets, int256[] calldata upls) external {
        require(whitelistedKeepers[msg.sender], "!unauthorized");
        for (uint256 i = 0; i < assets.length; i++) {
            globalUPLs[assets[i]] = upls[i];
        }
    }

    /// @notice Returns total unrealized p/l for `asset`
    function getGlobalUPL(address asset) external view returns (int256) {
        return globalUPLs[asset];
    }

    /// @notice Returns pool deposit tax for `asset` and amount in bps
    function getDepositTaxBps(address asset, uint256 amount) public view returns (uint256) {
        uint256 taxBps;
        uint256 balance = poolStore.getBalance(asset);
        uint256 bufferBalance = poolStore.getBufferBalance(asset);
        if (globalUPLs[asset] - int256(bufferBalance) < 0) {
            taxBps = uint256(int256(BPS_DIVIDER) * (int256(bufferBalance) - globalUPLs[asset]) / (int256(balance) + int256(amount)));
        }
        return taxBps;
    }

    /// @notice Returns pool withdrawal tax for `asset` and amount in bps
    function getWithdrawalTaxBps(address asset, uint256 amount) public view returns (uint256) {
        uint256 taxBps;
        uint256 balance = poolStore.getBalance(asset);
        if (amount >= balance) return BPS_DIVIDER;
        uint256 bufferBalance = poolStore.getBufferBalance(asset);
        if (globalUPLs[asset] - int256(bufferBalance) > 0) {
            taxBps = uint256(int256(BPS_DIVIDER) * (globalUPLs[asset] - int256(bufferBalance)) / (int256(balance) - int256(amount)));
        }
        return taxBps;
    }

    // -- //

    /// @notice Credit trader loss to buffer and pay pool from buffer amount based on time and payout rate
    /// @param user User which incurred trading loss
    /// @param asset Asset address, e.g. address(0) for ETH
    /// @param market Market, e.g. "ETH-USD"
    /// @param amount Amount of trader loss
    function creditTraderLoss(address user, address asset, string memory market, uint256 amount) external onlyContract {
        // credit trader loss to buffer
        poolStore.incrementBufferBalance(asset, amount);

        // local variables
        uint256 lastPaid = poolStore.getLastPaid(asset);
        uint256 _now = block.timestamp;
        uint256 amountToSendPool;

        if (lastPaid == 0) {
            // during the very first execution, set lastPaid and return
            poolStore.setLastPaid(asset, _now);
        } else {
            // get buffer balance and buffer payout period to calculate amountToSendPool
            uint256 bufferBalance = poolStore.getBufferBalance(asset);
            uint256 bufferPayoutPeriod = poolStore.bufferPayoutPeriod();

            // Stream buffer balance progressively into the pool
            amountToSendPool = (bufferBalance * (block.timestamp - lastPaid)) / bufferPayoutPeriod;
            if (amountToSendPool > bufferBalance) amountToSendPool = bufferBalance;

            // update storage
            poolStore.incrementBalance(asset, amountToSendPool);
            poolStore.decrementBufferBalance(asset, amountToSendPool);
            poolStore.setLastPaid(asset, _now);
        }

        // emit event
        emit PoolPayIn(
            user,
            asset,
            market,
            amount,
            amountToSendPool,
            poolStore.getBalance(asset),
            poolStore.getBufferBalance(asset)
        );
    }

    /// @notice Pay out trader profit, from buffer first then pool if buffer is depleted
    /// @param user Address to send funds to
    /// @param asset Asset address, e.g. address(0) for ETH
    /// @param market Market, e.g. "ETH-USD"
    /// @param amount Amount of trader profit
    function debitTraderProfit(
        address user,
        address asset,
        string calldata market,
        uint256 amount
    ) external onlyContract {
        // return if profit = 0
        if (amount == 0) return;

        uint256 bufferBalance = poolStore.getBufferBalance(asset);

        // decrement buffer balance first
        poolStore.decrementBufferBalance(asset, amount);

        // if amount is greater than available in the buffer, pay remaining from the pool
        if (amount > bufferBalance) {
            uint256 diffToPayFromPool = amount - bufferBalance;
            uint256 poolBalance = poolStore.getBalance(asset);
            require(diffToPayFromPool < poolBalance, '!pool-balance');
            poolStore.decrementBalance(asset, diffToPayFromPool);
        }

        // transfer profit out
        fundStore.transferOut(asset, user, amount);

        // emit event
        emit PoolPayOut(user, asset, market, amount, poolStore.getBalance(asset), poolStore.getBufferBalance(asset));
    }

    /// @notice Deposit 'amount' of 'asset' into the pool
    /// @param asset Asset address, e.g. address(0) for ETH
    /// @param amount Amount to be deposited
    function deposit(address asset, uint256 amount) public payable {
        require(amount > 0, '!amount');
        require(assetStore.isSupported(asset), '!asset');

        uint256 balance = poolStore.getBalance(asset);
        address user = msg.sender;

        // if asset is ETH (address(0)), set amount to msg.value
        if (asset == address(0)) {
            amount = msg.value;
            fundStore.transferIn{value: amount}(asset, user, amount);
        } else {
            fundStore.transferIn(asset, user, amount);
        }

        // deposit tax
        uint256 taxBps = getDepositTaxBps(asset, amount);
        require(taxBps < BPS_DIVIDER, "!tax");
        uint256 tax = (amount * taxBps) / BPS_DIVIDER;
        uint256 amountMinusTax = amount - tax;

        // pool share is equal to pool balance of user divided by the total balance
        uint256 clpSupply = poolStore.getClpSupply(asset);
        uint256 clpAmount = balance == 0 || clpSupply == 0 ? amountMinusTax : (amountMinusTax * clpSupply) / balance;

        // increment balances
        poolStore.incrementUserClpBalance(asset, user, clpAmount);
        poolStore.incrementBalance(asset, amount);

        // emit event
        emit PoolDeposit(user, asset, amount, tax, clpAmount, poolStore.getBalance(asset));
    }

    /// @notice Withdraw 'amount' of 'asset'
    /// @param asset Asset address, e.g. address(0) for ETH
    /// @param amount Amount to be withdrawn
    function withdraw(address asset, uint256 amount) public {
        require(amount > BPS_DIVIDER, '!amount');
        require(assetStore.isSupported(asset), '!asset');

        address user = msg.sender;

        // check pool balance and clp supply
        uint256 balance = poolStore.getBalance(asset);
        uint256 clpSupply = poolStore.getClpSupply(asset);
        require(balance > 0 && clpSupply > 0, '!empty');

        // check user balance
        uint256 userBalance = poolStore.getUserBalance(asset, user);
        if (amount > userBalance) amount = userBalance;

        // withdrawal tax
        uint256 taxBps = getWithdrawalTaxBps(asset, amount);
        require(taxBps < BPS_DIVIDER, "!tax");
        uint256 tax = (amount * taxBps) / BPS_DIVIDER;
        uint256 amountMinusTax = amount - tax;

        // // flat pool withdrawal fee (should generally be = 0)
        // uint256 feeAmount = (amountMinusTax * poolStore.getWithdrawalFee(asset)) / BPS_DIVIDER;
        // uint256 amountMinusFee = amountMinusTax - feeAmount;

        // CLP amount
        uint256 clpAmount = (amount * clpSupply) / balance;

        // decrement balances
        poolStore.decrementUserClpBalance(asset, user, clpAmount);
        poolStore.decrementBalance(asset, amountMinusTax);

        // transfer funds out
        fundStore.transferOut(asset, user, amountMinusTax);

        // emit event
        emit PoolWithdrawal(user, asset, amount, tax, clpAmount, poolStore.getBalance(asset));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
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 amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/structs/EnumerableSet.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }

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

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

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

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

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

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

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

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

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

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

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

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

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

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;

import '../utils/Roles.sol';

/// @title AssetStore
/// @notice Persistent storage of supported assets
contract AssetStore is Roles {
    // Asset info struct
    struct Asset {
        uint256 minSize;
        address chainlinkFeed;
    }

    // Asset list
    address[] public assetList;
    mapping(address => Asset) private assets;

    constructor(RoleStore rs) Roles(rs) {}

    /// @notice Set or update an asset
    /// @dev Only callable by governance
    /// @param asset Asset address, e.g. address(0) for ETH
    /// @param assetInfo Struct containing minSize and chainlinkFeed
    function set(address asset, Asset memory assetInfo) external onlyGov {
        assets[asset] = assetInfo;
        for (uint256 i = 0; i < assetList.length; i++) {
            if (assetList[i] == asset) return;
        }
        assetList.push(asset);
    }

    /// @notice Returns asset struct of `asset`
    /// @param asset Asset address, e.g. address(0) for ETH
    function get(address asset) external view returns (Asset memory) {
        return assets[asset];
    }

    /// @notice Get a list of all supported assets
    function getAssetList() external view returns (address[] memory) {
        return assetList;
    }

    /// @notice Get number of supported assets
    function getAssetCount() external view returns (uint256) {
        return assetList.length;
    }

    /// @notice Returns asset address at `index`
    /// @param index index of asset
    function getAssetByIndex(uint256 index) external view returns (address) {
        return assetList[index];
    }

    /// @notice Returns true if `asset` is supported
    /// @param asset Asset address, e.g. address(0) for ETH
    function isSupported(address asset) external view returns (bool) {
        return assets[asset].minSize > 0;
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;

import '../utils/Governable.sol';

/// @title DataStore
/// @notice General purpose storage contract
/// @dev Access is restricted to governance
contract DataStore is Governable {
    // Key-value stores
    mapping(bytes32 => uint256) public uintValues;
    mapping(bytes32 => int256) public intValues;
    mapping(bytes32 => address) public addressValues;
    mapping(bytes32 => bytes32) public dataValues;
    mapping(bytes32 => bool) public boolValues;
    mapping(bytes32 => string) public stringValues;

    constructor() Governable() {}

    /// @param key The key for the record
    /// @param value value to store
    /// @param overwrite Overwrites existing value if set to true
    function setUint(string calldata key, uint256 value, bool overwrite) external onlyGov returns (bool) {
        bytes32 hash = getHash(key);
        if (overwrite || uintValues[hash] == 0) {
            uintValues[hash] = value;
            return true;
        }
        return false;
    }

    /// @param key The key for the record
    function getUint(string calldata key) external view returns (uint256) {
        return uintValues[getHash(key)];
    }

    /// @param key The key for the record
    /// @param value value to store
    /// @param overwrite Overwrites existing value if set to true
    function setInt(string calldata key, int256 value, bool overwrite) external onlyGov returns (bool) {
        bytes32 hash = getHash(key);
        if (overwrite || intValues[hash] == 0) {
            intValues[hash] = value;
            return true;
        }
        return false;
    }

    /// @param key The key for the record
    function getInt(string calldata key) external view returns (int256) {
        return intValues[getHash(key)];
    }

    /// @param key The key for the record
    /// @param value address to store
    /// @param overwrite Overwrites existing value if set to true
    function setAddress(string calldata key, address value, bool overwrite) external onlyGov returns (bool) {
        bytes32 hash = getHash(key);
        if (overwrite || addressValues[hash] == address(0)) {
            addressValues[hash] = value;
            return true;
        }
        return false;
    }

    /// @param key The key for the record
    function getAddress(string calldata key) external view returns (address) {
        return addressValues[getHash(key)];
    }

    /// @param key The key for the record
    /// @param value byte value to store
    function setData(string calldata key, bytes32 value) external onlyGov returns (bool) {
        dataValues[getHash(key)] = value;
        return true;
    }

    /// @param key The key for the record
    function getData(string calldata key) external view returns (bytes32) {
        return dataValues[getHash(key)];
    }

    /// @param key The key for the record
    /// @param value value to store (true / false)
    function setBool(string calldata key, bool value) external onlyGov returns (bool) {
        boolValues[getHash(key)] = value;
        return true;
    }

    /// @param key The key for the record
    function getBool(string calldata key) external view returns (bool) {
        return boolValues[getHash(key)];
    }

    /// @param key The key for the record
    /// @param value string to store
    function setString(string calldata key, string calldata value) external onlyGov returns (bool) {
        stringValues[getHash(key)] = value;
        return true;
    }

    /// @param key The key for the record
    function getString(string calldata key) external view returns (string memory) {
        return stringValues[getHash(key)];
    }

    /// @param key string to hash
    function getHash(string memory key) public pure returns (bytes32) {
        return keccak256(abi.encodePacked(key));
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;

import '@openzeppelin/contracts/security/ReentrancyGuard.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';

import '../utils/Roles.sol';

/// @title FundStore
/// @notice Storage of protocol funds
contract FundStore is Roles, ReentrancyGuard {
    // Libraries
    using SafeERC20 for IERC20;
    using Address for address payable;

    constructor(RoleStore rs) Roles(rs) {}

    /// @notice Transfers `amount` of `asset` in
    /// @dev Only callable by other protocol contracts
    /// @param asset Asset address, e.g. address(0) for ETH
    /// @param from Address where asset is transferred from
    function transferIn(address asset, address from, uint256 amount) external payable onlyContract {
        if (amount == 0 || asset == address(0)) return;
        IERC20(asset).safeTransferFrom(from, address(this), amount);
    }

    /// @notice Transfers `amount` of `asset` out
    /// @dev Only callable by other protocol contracts
    /// @param asset Asset address, e.g. address(0) for ETH
    /// @param to Address where asset is transferred to
    function transferOut(address asset, address to, uint256 amount) external nonReentrant onlyContract {
        if (amount == 0 || to == address(0)) return;
        if (asset == address(0)) {
            payable(to).sendValue(amount);
        } else {
            IERC20(asset).safeTransfer(to, amount);
        }
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;

import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';

import '../utils/Roles.sol';

/// @title PoolStore
/// @notice Persistent storage for Pool.sol
contract PoolStore is Roles {
    // Libraries
    using SafeERC20 for IERC20;

    // Constants
    uint256 public constant BPS_DIVIDER = 10000;
    uint256 public constant MAX_POOL_WITHDRAWAL_FEE = 500; // in bps = 5%

    // State variables
    uint256 public feeShare = 500;
    uint256 public bufferPayoutPeriod = 7 days;

    mapping(address => uint256) private clpSupply; // asset => clp supply
    mapping(address => uint256) private balances; // asset => balance
    mapping(address => mapping(address => uint256)) private userClpBalances; // asset => account => clp amount

    mapping(address => uint256) private bufferBalances; // asset => balance
    mapping(address => uint256) private lastPaid; // asset => timestamp

    mapping(address => uint256) private withdrawalFees; // asset => bps

    constructor(RoleStore rs) Roles(rs) {}

    /// @notice Set pool fee
    /// @dev Only callable by governance
    /// @param bps fee share in bps
    function setFeeShare(uint256 bps) external onlyGov {
        require(bps < BPS_DIVIDER, '!bps');
        feeShare = bps;
    }

    /// @notice Set buffer payout period
    /// @dev Only callable by governance
    /// @param period Buffer payout period in seconds, default is 7 days (604800 seconds)
    function setBufferPayoutPeriod(uint256 period) external onlyGov {
        require(period > 0, '!period');
        bufferPayoutPeriod = period;
    }

    /// @notice Set pool withdrawal fee
    /// @dev Only callable by governance
    /// @param asset Pool asset, e.g. address(0) for ETH
    /// @param bps Withdrawal fee in bps
    function setWithdrawalFee(address asset, uint256 bps) external onlyGov {
        require(bps <= MAX_POOL_WITHDRAWAL_FEE, '!pool-withdrawal-fee');
        withdrawalFees[asset] = bps;
    }

    /// @notice Increments pool balance
    /// @dev Only callable by other protocol contracts
    function incrementBalance(address asset, uint256 amount) external onlyContract {
        balances[asset] += amount;
    }

    /// @notice Decrements pool balance
    /// @dev Only callable by other protocol contracts
    function decrementBalance(address asset, uint256 amount) external onlyContract {
        balances[asset] = balances[asset] <= amount ? 0 : balances[asset] - amount;
    }

    /// @notice Increments buffer balance
    /// @dev Only callable by other protocol contracts
    function incrementBufferBalance(address asset, uint256 amount) external onlyContract {
        bufferBalances[asset] += amount;
    }

    /// @notice Decrements buffer balance
    /// @dev Only callable by other protocol contracts
    function decrementBufferBalance(address asset, uint256 amount) external onlyContract {
        bufferBalances[asset] = bufferBalances[asset] <= amount ? 0 : bufferBalances[asset] - amount;
    }

    /// @notice Updates `lastPaid`
    /// @dev Only callable by other protocol contracts
    function setLastPaid(address asset, uint256 timestamp) external onlyContract {
        lastPaid[asset] = timestamp;
    }

    /// @notice Increments `clpSupply` and `userClpBalances`
    /// @dev Only callable by other protocol contracts
    function incrementUserClpBalance(address asset, address user, uint256 amount) external onlyContract {
        clpSupply[asset] += amount;

        unchecked {
            // Overflow not possible: balance + amount is at most clpSupply + amount, which is checked above.
            userClpBalances[asset][user] += amount;
        }
    }

    /// @notice Decrements `clpSupply` and `userClpBalances`
    /// @dev Only callable by other protocol contracts
    function decrementUserClpBalance(address asset, address user, uint256 amount) external onlyContract {
        clpSupply[asset] = clpSupply[asset] <= amount ? 0 : clpSupply[asset] - amount;

        userClpBalances[asset][user] = userClpBalances[asset][user] <= amount
            ? 0
            : userClpBalances[asset][user] - amount;
    }

    /// @notice Returns withdrawal fee of `asset` from pool
    function getWithdrawalFee(address asset) external view returns (uint256) {
        return withdrawalFees[asset];
    }

    /// @notice Returns the sum of buffer and pool balance of `asset`
    function getAvailable(address asset) external view returns (uint256) {
        return balances[asset] + bufferBalances[asset];
    }

    /// @notice Returns amount of `asset` in pool
    function getBalance(address asset) external view returns (uint256) {
        return balances[asset];
    }

    /// @notice Returns amount of `asset` in buffer
    function getBufferBalance(address asset) external view returns (uint256) {
        return bufferBalances[asset];
    }

    /// @notice Returns pool balances of `_assets`
    function getBalances(address[] calldata _assets) external view returns (uint256[] memory) {
        uint256 length = _assets.length;
        uint256[] memory _balances = new uint256[](length);

        for (uint256 i = 0; i < length; i++) {
            _balances[i] = balances[_assets[i]];
        }

        return _balances;
    }

    /// @notice Returns buffer balances of `_assets`
    function getBufferBalances(address[] calldata _assets) external view returns (uint256[] memory) {
        uint256 length = _assets.length;
        uint256[] memory _balances = new uint256[](length);

        for (uint256 i = 0; i < length; i++) {
            _balances[i] = bufferBalances[_assets[i]];
        }

        return _balances;
    }

    /// @notice Returns last time pool was paid
    function getLastPaid(address asset) external view returns (uint256) {
        return lastPaid[asset];
    }

    /// @notice Returns `_assets` balance of `account`
    function getUserBalances(address[] calldata _assets, address account) external view returns (uint256[] memory) {
        uint256 length = _assets.length;
        uint256[] memory _balances = new uint256[](length);

        for (uint256 i = 0; i < length; i++) {
            _balances[i] = getUserBalance(_assets[i], account);
        }

        return _balances;
    }

    /// @notice Returns `asset` balance of `account`
    function getUserBalance(address asset, address account) public view returns (uint256) {
        if (clpSupply[asset] == 0) return 0;
        return (userClpBalances[asset][account] * balances[asset]) / clpSupply[asset];
    }

    /// @notice Returns total amount of CLP for `asset`
    function getClpSupply(address asset) public view returns (uint256) {
        return clpSupply[asset];
    }

    /// @notice Returns amount of CLP of `account` for `asset`
    function getUserClpBalance(address asset, address account) public view returns (uint256) {
        return userClpBalances[asset][account];
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;

import '@openzeppelin/contracts/utils/structs/EnumerableSet.sol';
import '../utils/Governable.sol';

/**
 * @title  RoleStore
 * @notice Role-based access control mechanism. Governance can grant and
 *         revoke roles dynamically via {grantRole} and {revokeRole}
 */
contract RoleStore is Governable {
    // Libraries
    using EnumerableSet for EnumerableSet.AddressSet;
    using EnumerableSet for EnumerableSet.Bytes32Set;

    // Set of roles
    EnumerableSet.Bytes32Set internal roles;

    // Role -> address
    mapping(bytes32 => EnumerableSet.AddressSet) internal roleMembers;

    constructor() Governable() {}

    /// @notice Grants `role` to `account`
    /// @dev Only callable by governance
    function grantRole(address account, bytes32 role) external onlyGov {
        // add role if not already present
        if (!roles.contains(role)) roles.add(role);

        require(roleMembers[role].add(account));
    }

    /// @notice Revokes `role` from `account`
    /// @dev Only callable by governance
    function revokeRole(address account, bytes32 role) external onlyGov {
        require(roleMembers[role].remove(account));

        // Remove role if it has no longer any members
        if (roleMembers[role].length() == 0) {
            roles.remove(role);
        }
    }

    /// @notice Returns `true` if `account` has been granted `role`
    function hasRole(address account, bytes32 role) external view returns (bool) {
        return roleMembers[role].contains(account);
    }

    /// @notice Returns number of roles
    function getRoleCount() external view returns (uint256) {
        return roles.length();
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;

/// @title Governable
/// @notice Basic access control mechanism, gov has access to certain functions
contract Governable {
    address public gov;

    event SetGov(address prevGov, address nextGov);

    /// @dev Initializes the contract setting the deployer address as governance
    constructor() {
        _setGov(msg.sender);
    }

    /// @dev Reverts if called by any account other than gov
    modifier onlyGov() {
        require(msg.sender == gov, '!gov');
        _;
    }

    /// @notice Sets a new governance address
    /// @dev Only callable by governance
    function setGov(address _gov) external onlyGov {
        _setGov(_gov);
    }

    /// @notice Sets a new governance address
    /// @dev Internal function without access restriction
    function _setGov(address _gov) internal {
        address prevGov = gov;
        gov = _gov;
        emit SetGov(prevGov, _gov);
    }
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.17;

import './Governable.sol';
import '../stores/RoleStore.sol';

/// @title Roles
/// @notice Role-based access control mechanism via onlyContract modifier
contract Roles is Governable {
    bytes32 public constant CONTRACT = keccak256('CONTRACT');

    RoleStore public roleStore;

    /// @dev Initializes roleStore address
    constructor(RoleStore rs) Governable() {
        roleStore = rs;
    }

    /// @dev Reverts if caller address has not the contract role
    modifier onlyContract() {
        require(roleStore.hasRole(msg.sender, CONTRACT), '!contract-role');
        _;
    }
}

{
  "viaIR": true,
  "optimizer": {
    "enabled": true,
    "runs": 100
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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DataStore","name":"ds","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"feeAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"clpAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"poolBalance","type":"uint256"}],"name":"PoolDeposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"string","name":"market","type":"string"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"bufferToPoolAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"poolBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"bufferBalance","type":"uint256"}],"name":"PoolPayIn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"string","name":"market","type":"string"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"poolBalance","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"bufferBalance","type":"uint256"}],"name":"PoolPayOut","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"address","name":"asset","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"feeAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"clpAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"poolBalance","type":"uint256"}],"name":"PoolWithdrawal","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"prevGov","type":"address"},{"indexed":false,"internalType":"address","name":"nextGov","type":"address"}],"name":"SetGov","type":"event"},{"inputs":[],"name":"BPS_DIVIDER","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"CONTRACT","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DS","outputs":[{"internalType":"contract DataStore","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"UNIT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"assetStore","outputs":[{"internalType":"contract AssetStore","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"address","name":"asset","type":"address"},{"internalType":"string","name":"market","type":"string"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"creditTraderLoss","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"address","name":"asset","type":"address"},{"internalType":"string","name":"market","type":"string"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"debitTraderProfit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"asset","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"fundStore","outputs":[{"internalType":"contract FundStore","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"asset","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"getDepositTaxBps","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"asset","type":"address"}],"name":"getGlobalUPL","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"asset","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"getWithdrawalTaxBps","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"gov","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"link","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"poolStore","outputs":[{"internalType":"contract PoolStore","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"roleStore","outputs":[{"internalType":"contract RoleStore","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"assets","type":"address[]"},{"internalType":"int256[]","name":"upls","type":"int256[]"}],"name":"setGlobalUPLs","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_gov","type":"address"}],"name":"setGov","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"keeper","type":"address"},{"internalType":"bool","name":"isActive","type":"bool"}],"name":"setWhitelistedKeeper","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"asset","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000e5da4704a582fe799dcd1dff31dc2ed2e0bdc961000000000000000000000000a64694e51b22a081ea1e4051ef4ea1b715b47026

-----Decoded View---------------
Arg [0] : rs (address): 0xe5DA4704a582Fe799dcd1dFF31dc2eD2e0BdC961
Arg [1] : ds (address): 0xa64694E51B22A081EA1e4051EF4EA1b715b47026

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000e5da4704a582fe799dcd1dff31dc2ed2e0bdc961
Arg [1] : 000000000000000000000000a64694e51b22a081ea1e4051ef4ea1b715b47026