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// SPDX-License-Identifier: BUSL-1.1
// Last deployed from commit: cf8bbafabd8de8d87a8723e937bf51d2a52d40da;
pragma solidity 0.8.17;

import "./lib/Bytes32EnumerableMap.sol";
import "./interfaces/IBorrowersRegistry.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";

contract TokenManager is OwnableUpgradeable {
    /**
     * For adding supported assets
     **/
    struct Asset {
        bytes32 asset;
        address assetAddress;
        uint256 debtCoverage;
    }

    /**
     * For adding supported lending pools
     **/
    struct poolAsset {
        bytes32 asset;
        address poolAddress;
    }

    struct Exposure {
        uint256 current;
        uint256 max; // Setting max to 0 means no exposure limitations.
    }

    using EnumerableMap for EnumerableMap.Bytes32ToAddressMap;

    uint256 private constant _NOT_SUPPORTED = 0;
    uint256 private constant _INACTIVE = 1;
    uint256 private constant _ACTIVE = 2;

    // Stores an asset's bytes32 symbol representation to pool's address mapping
    EnumerableMap.Bytes32ToAddressMap private assetToPoolAddress;
    // Stores an asset's bytes32 symbol representation to asset's address mapping
    EnumerableMap.Bytes32ToAddressMap private assetToTokenAddress;
    mapping(address => bytes32) public tokenAddressToSymbol;
    mapping(address => uint256) private tokenPositionInList;
    // used for defining different leverage ratios for tokens
    mapping(address => uint256) public debtCoverage;
    address[] public supportedTokensList;

    mapping(address => uint256) public tokenToStatus;
    // used for defining different leverage ratios for staked assets
    mapping(bytes32 => uint256) public debtCoverageStaked;

    mapping(bytes32 => bytes32) public identifierToExposureGroup;
    mapping(bytes32 => Exposure) public groupToExposure;

    function initialize(Asset[] memory tokenAssets, poolAsset[] memory poolAssets) external initializer {
        __Ownable_init();

        addTokenAssets(tokenAssets);
        addPoolAssets(poolAssets);
    }

    function getAllPoolAssets() public view returns (bytes32[] memory result) {
        return assetToPoolAddress._inner._keys._inner._values;
    }

    function getSupportedTokensAddresses() public view returns (address[] memory) {
        return supportedTokensList;
    }

    function getAllTokenAssets() public view returns (bytes32[] memory result) {
        return assetToTokenAddress._inner._keys._inner._values;
    }

    /**
    * Returns address of an asset
    **/
    function getAssetAddress(bytes32 _asset, bool allowInactive) public view returns (address) {
        (, address assetAddress) = assetToTokenAddress.tryGet(_asset);
        require(assetAddress != address(0), "Asset not supported.");
        if (!allowInactive) {
            require(tokenToStatus[assetAddress] == _ACTIVE, "Asset inactive");
        }

        return assetAddress;
    }

    /**
    * Returns address of an asset's lending pool
    **/
    function getPoolAddress(bytes32 _asset) public view returns (address) {
        (, address assetAddress) = assetToPoolAddress.tryGet(_asset);
        require(assetAddress != address(0), "Pool asset not supported.");

        return assetAddress;
    }

    function increaseProtocolExposure(bytes32 assetIdentifier, uint256 exposureIncrease) public onlyPrimeAccountOrOwner {
        bytes32 group = identifierToExposureGroup[assetIdentifier];
        if(group != ""){
            Exposure storage exposure = groupToExposure[group];
            if(exposure.max != 0){
                exposure.current += exposureIncrease;
                require(exposure.current <= exposure.max, "Max asset exposure breached");
                emit ProtocolExposureChanged(msg.sender, group, exposureIncrease, block.timestamp);
            }
        }
    }

    function decreaseProtocolExposure(bytes32 assetIdentifier, uint256 exposureDecrease) public onlyPrimeAccountOrOwner {
        bytes32 group = identifierToExposureGroup[assetIdentifier];
        if(group != ""){
            Exposure storage exposure = groupToExposure[group];
            if(exposure.max != 0){
                exposure.current = exposure.current <= exposureDecrease ? 0 : exposure.current - exposureDecrease;
                emit ProtocolExposureChanged(msg.sender, group, exposureDecrease, block.timestamp);
            }
        }
    }

    function setCurrentProtocolExposure(bytes32[] memory groupIdentifiers, uint256[] memory currentExposures) external onlyOwner {
        require(groupIdentifiers.length == currentExposures.length, "Arrays lengths mismatch");
        for (uint256 i = 0; i < groupIdentifiers.length; i++) {
            _setCurrentProtocolExposure(groupIdentifiers[i], currentExposures[i]);
        }
    }

    function setMaxProtocolsExposure(bytes32[] memory groupIdentifiers, uint256[] memory maxExposures) public onlyOwner {
        require(groupIdentifiers.length == maxExposures.length, "Arrays lengths mismatch");
        for (uint256 i = 0; i < groupIdentifiers.length; i++) {
            _setMaxProtocolExposure(groupIdentifiers[i], maxExposures[i]);
        }
    }

    function _setMaxProtocolExposure(bytes32 groupIdentifier, uint256 maxExposure) internal {
        require(groupIdentifier != "", "Cannot set an empty string asset.");
        uint256 prevExposure = groupToExposure[groupIdentifier].max;
        groupToExposure[groupIdentifier].max = maxExposure;

        emit ProtocolExposureSet(msg.sender, groupIdentifier, prevExposure, maxExposure, groupToExposure[groupIdentifier].current , block.timestamp);
    }

    function _setCurrentProtocolExposure(bytes32 groupIdentifier, uint256 currentExposure) internal {
        require(groupIdentifier != "", "Cannot set an empty string asset.");
        uint256 prevExposure = groupToExposure[groupIdentifier].current;
        groupToExposure[groupIdentifier].current = currentExposure;

        emit ProtocolCurrentExposureSet(msg.sender, groupIdentifier, prevExposure, currentExposure, block.timestamp);
    }

    function setIdentifiersToExposureGroups(bytes32[] memory identifiers, bytes32[] memory exposureGroups) public onlyOwner {
        require(identifiers.length == exposureGroups.length, "Arrays lengths mismatch");
        for(uint i=0; i<identifiers.length; i++){
            identifierToExposureGroup[identifiers[i]] = exposureGroups[i];
            emit IdentifierToExposureGroupSet(msg.sender, identifiers[i], exposureGroups[i], block.timestamp);
        }

    }

    function addPoolAssets(poolAsset[] memory poolAssets) public onlyOwner {
        for (uint256 i = 0; i < poolAssets.length; i++) {
            _addPoolAsset(poolAssets[i].asset, poolAssets[i].poolAddress);
        }
    }

    function _addPoolAsset(bytes32 _asset, address _poolAddress) internal {
        require(Address.isContract(_poolAddress), "TokenManager: Pool must be a contract");
        require(!assetToPoolAddress.contains(_asset), "Asset's pool already exists");
        assetToPoolAddress.set(_asset, _poolAddress);
        emit PoolAssetAdded(msg.sender, _asset, _poolAddress, block.timestamp);
    }

    function addTokenAssets(Asset[] memory tokenAssets) public onlyOwner {
        for (uint256 i = 0; i < tokenAssets.length; i++) {
            _addTokenAsset(tokenAssets[i].asset, tokenAssets[i].assetAddress, tokenAssets[i].debtCoverage);
        }
    }

    function isTokenAssetActive(address token) external view returns(bool) {
        return tokenToStatus[token] == _ACTIVE;
    }

    function activateToken(address token) public onlyOwner {
        require(tokenToStatus[token] == _INACTIVE, "Must be inactive");
        tokenToStatus[token] = _ACTIVE;
        emit TokenAssetActivated(msg.sender, token, block.timestamp);
    }

    function deactivateToken(address token) public onlyOwner {
        require(tokenToStatus[token] == _ACTIVE, "Must be active");
        tokenToStatus[token] = _INACTIVE;
        emit TokenAssetDeactivated(msg.sender, token, block.timestamp);
    }

    function _addTokenAsset(bytes32 _asset, address _tokenAddress, uint256 _debtCoverage) internal {
        require(_asset != "", "Cannot set an empty string asset.");
        require(_tokenAddress != address(0), "Cannot set an empty address.");
        require(!assetToTokenAddress.contains(_asset), "Asset's token already exists");
        require(tokenAddressToSymbol[_tokenAddress] == 0, "Asset address is already in use");
        setDebtCoverage(_tokenAddress, _debtCoverage);

        assetToTokenAddress.set(_asset, _tokenAddress);
        tokenAddressToSymbol[_tokenAddress] = _asset;
        tokenToStatus[_tokenAddress] = _ACTIVE;

        supportedTokensList.push(_tokenAddress);
        tokenPositionInList[_tokenAddress] = supportedTokensList.length - 1;

        emit TokenAssetAdded(msg.sender, _asset, _tokenAddress, block.timestamp);
    }

    function _removeTokenFromList(address tokenToRemove) internal {
        // Move last address token to the `tokenToRemoveIndex` position (index of an asset that is being removed) in the address[] supportedTokensList
        // and update map(address=>uint256) tokenPostitionInList if the token is not already the last element
        uint256 tokenToRemoveIndex = tokenPositionInList[tokenToRemove];
        if (tokenToRemoveIndex != (supportedTokensList.length - 1)) {
            address currentLastToken = supportedTokensList[supportedTokensList.length - 1];
            tokenPositionInList[currentLastToken] = tokenToRemoveIndex;
            supportedTokensList[tokenToRemoveIndex] = currentLastToken;
        }
        // Remove last element - that is either the token that is being removed (if was already at the end)
        // or some other asset that at this point was already copied to the `index` positon
        supportedTokensList.pop();
        tokenPositionInList[tokenToRemove] = 0;
    }

    function removeTokenAssets(bytes32[] memory _tokenAssets) public onlyOwner {
        for (uint256 i = 0; i < _tokenAssets.length; i++) {
            _removeTokenAsset(_tokenAssets[i]);
        }
    }

    function _removeTokenAsset(bytes32 _tokenAsset) internal {
        address tokenAddress = getAssetAddress(_tokenAsset, true);
        EnumerableMap.remove(assetToTokenAddress, _tokenAsset);
        tokenAddressToSymbol[tokenAddress] = 0;
        tokenToStatus[tokenAddress] = _NOT_SUPPORTED;
        debtCoverage[tokenAddress] = 0;
        _removeTokenFromList(tokenAddress);
        emit TokenAssetRemoved(msg.sender, _tokenAsset, block.timestamp);
    }

    function removePoolAssets(bytes32[] memory _poolAssets) public onlyOwner {
        for (uint256 i = 0; i < _poolAssets.length; i++) {
            _removePoolAsset(_poolAssets[i]);
        }
    }

    function _removePoolAsset(bytes32 _poolAsset) internal {
        address poolAddress = getPoolAddress(_poolAsset);
        EnumerableMap.remove(assetToPoolAddress, _poolAsset);
        emit PoolAssetRemoved(msg.sender, _poolAsset, poolAddress, block.timestamp);
    }

    function setDebtCoverage(address token, uint256 coverage) public onlyOwner {
        //LTV must be lower than 5
        require(coverage <= 0.833333333333333333e18, 'Debt coverage higher than maximum acceptable');
        debtCoverage[token] = coverage;
    }

    function setDebtCoverageStaked(bytes32 stakedAsset, uint256 coverage) public onlyOwner {
        //LTV must be lower than 5
        require(coverage <= 0.833333333333333333e18, 'Debt coverage higher than maximum acceptable');
        debtCoverageStaked[stakedAsset] = coverage;
    }

    function getSmartLoansFactoryAddress() public view virtual returns (address) {
        return 0xFf5e3dDaefF411a1dC6CcE00014e4Bca39265c20;
    }

    /* ========== OVERRIDDEN FUNCTIONS ========== */

    function renounceOwnership() public virtual override {}

    /* ========== MODIFIERS ========== */

    modifier onlyPrimeAccountOrOwner() {
        IBorrowersRegistry borrowersRegistry = IBorrowersRegistry(getSmartLoansFactoryAddress());
        require(borrowersRegistry.canBorrow(msg.sender) || owner() == _msgSender(), "Only PrimeAccount or owner can change protocol exposure");
        _;
    }

    /**
     * @dev emitted after changing current protocol exposure
     * @param performer an address of the wallet changing the exposure
     * @param identifier group identifier
     * @param newExposure new current protocol exposure
     * @param timestamp time of associating identifier with a exposure group
     **/
    event ProtocolExposureChanged(address indexed performer, bytes32 indexed identifier, uint256 newExposure, uint256 timestamp);


    /**
     * @dev emitted after associating identifier with a exposure group
     * @param performer an address of the wallet setting max exposure
     * @param identifier asset identifier
     * @param exposureGroup exposure group identifier
     * @param timestamp time of associating identifier with a exposure group
     **/
    event IdentifierToExposureGroupSet(address indexed performer, bytes32 indexed identifier, bytes32 indexed exposureGroup, uint256 timestamp);

    /**
     * @dev emitted after setting max exposure for a given protocol.
     * @param performer an address of the wallet setting max exposure
     * @param groupIdentifier exposure group identifier
     * @param prevMaxExposure previous max protocol exposure
     * @param newMaxExposure new max protocol exposure
     * @param currentExposure current protocol exposure
     * @param timestamp time of setting max exposure
     **/
    event ProtocolExposureSet(address indexed performer, bytes32 indexed groupIdentifier, uint256 prevMaxExposure, uint256 newMaxExposure, uint256 currentExposure, uint256 timestamp);


    /**
         * @dev emitted after setting max exposure for a given protocol.
     * @param performer an address of the wallet setting max exposure
     * @param groupIdentifier exposure group identifier
     * @param prevCurrentExposure previous max protocol exposure
     * @param newCurrentExposure new max protocol exposure
     * @param timestamp time of setting max exposure
     **/
    event ProtocolCurrentExposureSet(address indexed performer, bytes32 indexed groupIdentifier, uint256 prevCurrentExposure, uint256 newCurrentExposure, uint256 timestamp);



    /**
     * @dev emitted after adding a token asset
     * @param performer an address of the wallet adding a token asset
     * @param tokenAsset token asset
     * @param assetAddress an address of the token asset
     * @param timestamp time of adding a token asset
     **/
    event TokenAssetAdded(address indexed performer, bytes32 indexed tokenAsset, address assetAddress, uint256 timestamp);

    /**
     * @dev emitted after activating a token asset
     * @param performer an address of the wallet activating a token asset
     * @param assetAddress an address of the token asset
     * @param timestamp time of activating a token asset
     **/
    event TokenAssetActivated(address indexed performer, address assetAddress, uint256 timestamp);

    /**
     * @dev emitted after deactivating a token asset
     * @param performer an address of the wallet deactivating a token asset
     * @param assetAddress an address of the token asset
     * @param timestamp time of deactivating a token asset
     **/
    event TokenAssetDeactivated(address indexed performer, address assetAddress, uint256 timestamp);

    /**
     * @dev emitted after removing a token asset
     * @param performer an address of the wallet removing a token asset
     * @param tokenAsset token asset
     * @param timestamp time a token asset removal
     **/
    event TokenAssetRemoved(address indexed performer, bytes32 indexed tokenAsset, uint256 timestamp);

    /**
     * @dev emitted after adding a pool asset
     * @param performer an address of wallet adding the pool asset
     * @param poolAsset pool asset
     * @param poolAddress an address of the pool asset
     * @param timestamp time of the pool asset addition
     **/
    event PoolAssetAdded(address indexed performer, bytes32 indexed poolAsset, address poolAddress, uint256 timestamp);

    /**
     * @dev emitted after removing a pool asset
     * @param performer an address of wallet removing the pool asset
     * @param poolAsset pool asset
     * @param poolAddress an address of the pool asset
     * @param timestamp time of a pool asset removal
     **/
    event PoolAssetRemoved(address indexed performer, bytes32 indexed poolAsset, address poolAddress, uint256 timestamp);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }

    /**
     * This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.0;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
 * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() initializer {}
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        // If the contract is initializing we ignore whether _initialized is set in order to support multiple
        // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
        // contract may have been reentered.
        require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} modifier, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    function _isConstructor() private view returns (bool) {
        return !AddressUpgradeable.isContract(address(this));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    /**
     * This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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.
 */
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;

        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;

        assembly {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: BUSL-1.1
// Last deployed from commit: ;
pragma solidity 0.8.17;

/**
 * @title IBorrowersRegistry
 * Keeps a registry of created trading accounts to verify their borrowing rights
 */
interface IBorrowersRegistry {
    function canBorrow(address _account) external view returns (bool);

    function getLoanForOwner(address _owner) external view returns (address);

    function getOwnerOfLoan(address _loan) external view returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.17;

import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

//It's Open Zeppelin EnumerableMap library modified to accept bytes32 type as a key

/**
 * @dev Library for managing an enumerable variant of Solidity's
 * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`]
 * type.
 *
 * Maps have the following properties:
 *
 * - Entries are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Entries are enumerated in O(n). No guarantees are made on the ordering.
 *
 */
library EnumerableMap {
    using EnumerableSet for EnumerableSet.Bytes32Set;

    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Map type with
    // bytes32 keys and values.
    // The Map implementation uses private functions, and user-facing
    // implementations (such as Bytes32ToAddressMap) are just wrappers around
    // the underlying Map.
    // This means that we can only create new EnumerableMaps for types that fit
    // in bytes32.

    struct Map {
        // Storage of keys
        EnumerableSet.Bytes32Set _keys;
        mapping(bytes32 => bytes32) _values;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function _set(
        Map storage map,
        bytes32 key,
        bytes32 value
    ) private returns (bool) {
        map._values[key] = value;
        return map._keys.add(key);
    }

    /**
     * @dev Removes a key-value pair from a map. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function _remove(Map storage map, bytes32 key) private returns (bool) {
        delete map._values[key];
        return map._keys.remove(key);
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function _contains(Map storage map, bytes32 key) private view returns (bool) {
        return map._keys.contains(key);
    }

    /**
     * @dev Returns the number of key-value pairs in the map. O(1).
     */
    function _length(Map storage map) private view returns (uint256) {
        return map._keys.length();
    }

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

    /**
     * @dev Tries to returns the value associated with `key`.  O(1).
     * Does not revert if `key` is not in the map.
     */
    function _tryGet(Map storage map, bytes32 key) private view returns (bool, bytes32) {
        bytes32 value = map._values[key];
        if (value == bytes32(0)) {
            return (_contains(map, key), bytes32(0));
        } else {
            return (true, value);
        }
    }

    /**
     * @dev Returns the value associated with `key`.  O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function _get(Map storage map, bytes32 key) private view returns (bytes32) {
        bytes32 value = map._values[key];
        require(value != 0 || _contains(map, key), "EnumerableMap: nonexistent key");
        return value;
    }

    /**
     * @dev Same as {_get}, with a custom error message when `key` is not in the map.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {_tryGet}.
     */
    function _get(
        Map storage map,
        bytes32 key,
        string memory errorMessage
    ) private view returns (bytes32) {
        bytes32 value = map._values[key];
        require(value != 0 || _contains(map, key), errorMessage);
        return value;
    }

    // Bytes32ToAddressMap

    struct Bytes32ToAddressMap {
        Map _inner;
    }

    /**
     * @dev Adds a key-value pair to a map, or updates the value for an existing
     * key. O(1).
     *
     * Returns true if the key was added to the map, that is if it was not
     * already present.
     */
    function set(
        Bytes32ToAddressMap storage map,
        bytes32 key,
        address value
    ) internal returns (bool) {
        return _set(map._inner, key, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the key was removed from the map, that is if it was present.
     */
    function remove(Bytes32ToAddressMap storage map, bytes32 key) internal returns (bool) {
        return _remove(map._inner, key);
    }

    /**
     * @dev Returns true if the key is in the map. O(1).
     */
    function contains(Bytes32ToAddressMap storage map, bytes32 key) internal view returns (bool) {
        return _contains(map._inner, key);
    }

    /**
     * @dev Returns the number of elements in the map. O(1).
     */
    function length(Bytes32ToAddressMap storage map) internal view returns (uint256) {
        return _length(map._inner);
    }

    /**
     * @dev Returns the element 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(Bytes32ToAddressMap storage map, uint256 index) internal view returns (bytes32, address) {
        (bytes32 key, bytes32 value) = _at(map._inner, index);
        return (key, address(uint160(uint256(value))));
    }

    /**
     * @dev Tries to returns the value associated with `key`.  O(1).
     * Does not revert if `key` is not in the map.
     *
     * _Available since v3.4._
     */
    function tryGet(Bytes32ToAddressMap storage map, bytes32 key) internal view returns (bool, address) {
        (bool success, bytes32 value) = _tryGet(map._inner, key);
        return (success, address(uint160(uint256(value))));
    }

    /**
     * @dev Returns the value associated with `key`.  O(1).
     *
     * Requirements:
     *
     * - `key` must be in the map.
     */
    function get(Bytes32ToAddressMap storage map, bytes32 key) internal view returns (address) {
        return address(uint160(uint256(_get(map._inner, key))));
    }

    /**
     * @dev Same as {get}, with a custom error message when `key` is not in the map.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryGet}.
     */
    function get(
        Bytes32ToAddressMap storage map,
        bytes32 key,
        string memory errorMessage
    ) internal view returns (address) {
        return address(uint160(uint256(_get(map._inner, key, errorMessage))));
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"identifier","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"exposureGroup","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"IdentifierToExposureGroupSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"poolAsset","type":"bytes32"},{"indexed":false,"internalType":"address","name":"poolAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"PoolAssetAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"poolAsset","type":"bytes32"},{"indexed":false,"internalType":"address","name":"poolAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"PoolAssetRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"groupIdentifier","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"prevCurrentExposure","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newCurrentExposure","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"ProtocolCurrentExposureSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"identifier","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"newExposure","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"ProtocolExposureChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"groupIdentifier","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"prevMaxExposure","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newMaxExposure","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"currentExposure","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"ProtocolExposureSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":false,"internalType":"address","name":"assetAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"TokenAssetActivated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"tokenAsset","type":"bytes32"},{"indexed":false,"internalType":"address","name":"assetAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"TokenAssetAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":false,"internalType":"address","name":"assetAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"TokenAssetDeactivated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"performer","type":"address"},{"indexed":true,"internalType":"bytes32","name":"tokenAsset","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"TokenAssetRemoved","type":"event"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"activateToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes32","name":"asset","type":"bytes32"},{"internalType":"address","name":"poolAddress","type":"address"}],"internalType":"struct TokenManager.poolAsset[]","name":"poolAssets","type":"tuple[]"}],"name":"addPoolAssets","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes32","name":"asset","type":"bytes32"},{"internalType":"address","name":"assetAddress","type":"address"},{"internalType":"uint256","name":"debtCoverage","type":"uint256"}],"internalType":"struct TokenManager.Asset[]","name":"tokenAssets","type":"tuple[]"}],"name":"addTokenAssets","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"deactivateToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"debtCoverage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"debtCoverageStaked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"assetIdentifier","type":"bytes32"},{"internalType":"uint256","name":"exposureDecrease","type":"uint256"}],"name":"decreaseProtocolExposure","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getAllPoolAssets","outputs":[{"internalType":"bytes32[]","name":"result","type":"bytes32[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAllTokenAssets","outputs":[{"internalType":"bytes32[]","name":"result","type":"bytes32[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_asset","type":"bytes32"},{"internalType":"bool","name":"allowInactive","type":"bool"}],"name":"getAssetAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_asset","type":"bytes32"}],"name":"getPoolAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getSmartLoansFactoryAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getSupportedTokensAddresses","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"groupToExposure","outputs":[{"internalType":"uint256","name":"current","type":"uint256"},{"internalType":"uint256","name":"max","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"identifierToExposureGroup","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"assetIdentifier","type":"bytes32"},{"internalType":"uint256","name":"exposureIncrease","type":"uint256"}],"name":"increaseProtocolExposure","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes32","name":"asset","type":"bytes32"},{"internalType":"address","name":"assetAddress","type":"address"},{"internalType":"uint256","name":"debtCoverage","type":"uint256"}],"internalType":"struct TokenManager.Asset[]","name":"tokenAssets","type":"tuple[]"},{"components":[{"internalType":"bytes32","name":"asset","type":"bytes32"},{"internalType":"address","name":"poolAddress","type":"address"}],"internalType":"struct TokenManager.poolAsset[]","name":"poolAssets","type":"tuple[]"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"isTokenAssetActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"_poolAssets","type":"bytes32[]"}],"name":"removePoolAssets","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"_tokenAssets","type":"bytes32[]"}],"name":"removeTokenAssets","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"groupIdentifiers","type":"bytes32[]"},{"internalType":"uint256[]","name":"currentExposures","type":"uint256[]"}],"name":"setCurrentProtocolExposure","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"coverage","type":"uint256"}],"name":"setDebtCoverage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"stakedAsset","type":"bytes32"},{"internalType":"uint256","name":"coverage","type":"uint256"}],"name":"setDebtCoverageStaked","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"identifiers","type":"bytes32[]"},{"internalType":"bytes32[]","name":"exposureGroups","type":"bytes32[]"}],"name":"setIdentifiersToExposureGroups","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"groupIdentifiers","type":"bytes32[]"},{"internalType":"uint256[]","name":"maxExposures","type":"uint256[]"}],"name":"setMaxProtocolsExposure","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"supportedTokensList","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"tokenAddressToSymbol","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"tokenToStatus","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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