{
  "language": "Solidity",
  "sources": {
    "contracts/SmtPriceFeed.sol": {
      "content": "//SPDX-License-Identifier: GPL-3.0-only\npragma solidity ^0.7.0;\n\nimport \"@openzeppelin/contracts/math/SafeMath.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@chainlink/contracts/src/v0.7/interfaces/AggregatorV2V3Interface.sol\";\nimport \"./interfaces/IBPool.sol\";\nimport \"./interfaces/IBRegistry.sol\";\nimport \"./interfaces/IEurPriceFeedForSmtPriceFeed.sol\";\nimport \"./interfaces/IXTokenWrapper.sol\";\n\ninterface IDecimals {\n    function decimals() external view returns (uint8);\n}\n\n/**\n * @title SmtPriceFeed\n * @author Protofire\n * @dev Contract module to retrieve SMT price per asset.\n */\ncontract SmtPriceFeed is Ownable {\n    using SafeMath for uint256;\n\n    // uint256 public constant decimals = 18;\n    uint256 public constant ONE_BASE18 = 10**18;\n    address public immutable USDC_ADDRESS;\n    uint256 public immutable ONE_ON_USDC;\n\n    /// @dev Address smtTokenAddress\n    address public smtTokenAddress;\n    /// @dev Address of BRegistry\n    IBRegistry public registry;\n    /// @dev Address of EurPriceFeed module\n    IEurPriceFeedForSmtPriceFeed public eurPriceFeed;\n    /// @dev Address of XTokenWrapper module\n    IXTokenWrapper public xTokenWrapper;\n    /// @dev price of SMT measured in WETH stored, used to decouple price querying and calculating\n    uint256 public currentPrice;\n\n    /**\n     * @dev Emitted when `registry` address is set.\n     */\n    event RegistrySet(address registry);\n\n    /**\n     * @dev Emitted when `eurPriceFeed` address is set.\n     */\n    event EurPriceFeedSet(address eurPriceFeed);\n\n    /**\n     * @dev Emitted when `smtTokenAddress` address is set.\n     */\n    event SmtSet(address smtTokenAddress);\n\n    /**\n     * @dev Emitted when `xTokenWrapper` address is set.\n     */\n    event XTokenWrapperSet(address xTokenWrapper);\n\n    /**\n     * @dev Emitted when someone executes computePrice.\n     */\n    event PriceComputed(address caller, uint256 price);\n\n    modifier onlyValidAsset(address _asset) {\n        require(xTokenWrapper.xTokenToToken(_asset) != address(0), \"invalid asset\");\n        _;\n    }\n\n    /**\n     * @dev Sets the values for {registry}, {eurPriceFeed} {smtTokenAddress} and {xTokenWrapper} and {USDC_ADDRESS}.\n     *\n     * Sets ownership to the account that deploys the contract.\n     *\n     */\n    constructor(\n        address _registry,\n        address _eurPriceFeed,\n        address _smt,\n        address _xTokenWrapper,\n        address _usdcAddress\n    ) {\n        _setRegistry(_registry);\n        _setEurPriceFeed(_eurPriceFeed);\n        _setSmt(_smt);\n        _setXTokenWrapper(_xTokenWrapper);\n\n        require(_usdcAddress != address(0), \"err: _usdcAddress is ZERO address\");\n        USDC_ADDRESS = _usdcAddress;\n        uint8 usdcDecimals = IDecimals(_usdcAddress).decimals();\n        ONE_ON_USDC = 10**usdcDecimals;\n    }\n\n    /**\n     * @dev Sets `_registry` as the new registry.\n     *\n     * Requirements:\n     *\n     * - the caller must be the owner.\n     * - `_registry` should not be the zero address.\n     *\n     * @param _registry The address of the registry.\n     */\n    function setRegistry(address _registry) external onlyOwner {\n        _setRegistry(_registry);\n    }\n\n    /**\n     * @dev Sets `_eurPriceFeed` as the new EurPriceFeed.\n     *\n     * Requirements:\n     *\n     * - the caller must be the owner.\n     * - `_eurPriceFeed` should not be the zero address.\n     *\n     * @param _eurPriceFeed The address of the EurPriceFeed.\n     */\n    function setEurPriceFeed(address _eurPriceFeed) external onlyOwner {\n        _setEurPriceFeed(_eurPriceFeed);\n    }\n\n    /**\n     * @dev Sets `_smt` as the new Smt.\n     *\n     * Requirements:\n     *\n     * - the caller must be the owner.\n     * - `_smt` should not be the zero address.\n     *\n     * @param _smt The address of the Smt.\n     */\n    function setSmt(address _smt) external onlyOwner {\n        _setSmt(_smt);\n    }\n\n    /**\n     * @dev Sets `_xTokenWrapper` as the new xTokenWrapper.\n     *\n     * Requirements:\n     *\n     * - the caller must be the owner.\n     * - `_xTokenWrapper` should not be the zero address.\n     *\n     * @param _xTokenWrapper The address of the xTokenWrapper.\n     */\n    function setXTokenWrapper(address _xTokenWrapper) external onlyOwner {\n        _setXTokenWrapper(_xTokenWrapper);\n    }\n\n    /**\n     * @dev Sets `_registry` as the new registry.\n     *\n     * Requirements:\n     *\n     * - `_registry` should not be the zero address.\n     *\n     * @param _registry The address of the registry.\n     */\n    function _setRegistry(address _registry) internal {\n        require(_registry != address(0), \"registry is the zero address\");\n        emit RegistrySet(_registry);\n        registry = IBRegistry(_registry);\n    }\n\n    /**\n     * @dev Sets `_eurPriceFeed` as the new EurPriceFeed.\n     *\n     * Requirements:\n     *\n     * - `_eurPriceFeed` should not be the zero address.\n     *\n     * @param _eurPriceFeed The address of the EurPriceFeed.\n     */\n    function _setEurPriceFeed(address _eurPriceFeed) internal {\n        require(_eurPriceFeed != address(0), \"eurPriceFeed is the zero address\");\n        emit EurPriceFeedSet(_eurPriceFeed);\n        eurPriceFeed = IEurPriceFeedForSmtPriceFeed(_eurPriceFeed);\n    }\n\n    /**\n     * @dev Sets `_smt` as the new Smt.\n     *\n     * Requirements:\n     *\n     * - `_smt` should not be the zero address.\n     *\n     * @param _smtTokenAddress The address of the Smt.\n     */\n    function _setSmt(address _smtTokenAddress) internal {\n        require(_smtTokenAddress != address(0), \"smtTokenAddress is the zero address\");\n        emit SmtSet(_smtTokenAddress);\n        smtTokenAddress = _smtTokenAddress;\n    }\n\n    /**\n     * @dev Sets `_xTokenWrapper` as the new xTokenWrapper.\n     *\n     * Requirements:\n     *\n     * - `_xTokenWrapper` should not be the zero address.\n     *\n     * @param _xTokenWrapper The address of the xTokenWrapper.\n     */\n    function _setXTokenWrapper(address _xTokenWrapper) internal {\n        require(_xTokenWrapper != address(0), \"xTokenWrapper is the zero address\");\n        emit XTokenWrapperSet(_xTokenWrapper);\n        xTokenWrapper = IXTokenWrapper(_xTokenWrapper);\n    }\n\n    /**\n     * @dev Gets the price of `_asset` in SMT.\n     *\n     * @param _asset address of asset to get the price.\n     */\n    function getPrice(address _asset) external view onlyValidAsset(_asset) returns (uint256) {\n        uint8 assetDecimals = IDecimals(_asset).decimals();\n        return calculateAmount(_asset, 10**assetDecimals);\n    }\n\n    /**\n     * @dev Gets how many SMT represents the `_amount` of `_asset`.\n     *\n     * @param _asset address of asset to get the amount.\n     * @param _assetAmountIn amount of `_asset` should be on asset digits\n     * response should be on base 18 as it represent xSMT which is base 18\n     */\n    function calculateAmount(address _asset, uint256 _assetAmountIn)\n        public\n        view\n        onlyValidAsset(_asset)\n        returns (uint256)\n    {\n        // get the xSmt to search the pools\n        address xSMT = xTokenWrapper.tokenToXToken(smtTokenAddress);\n\n        // if _asset is xSMT, don't modify the token amount\n        if (_asset == xSMT) {\n            return _assetAmountIn;\n        }\n\n        // get amount from the pools if the asset/xSMT pair exists\n        // how many xSMT are needed to buy the entered qty of asset\n        uint256 amount = getAvgAmountFromPools(_asset, xSMT, _assetAmountIn);\n\n        // no pool with xSMT/asset pair\n        // calculate base on xSMT/xUSDC pool and Asset/USD external price feed\n        if (amount == 0) {\n            // to get pools including the xUSDC / xSMT\n            address xUSDC = xTokenWrapper.tokenToXToken(USDC_ADDRESS);\n\n            // how many xSMT are needed to buy 1 xUSDC\n            // response in base 18\n            uint256 xUsdcForSmtAmount = getAvgAmountFromPools(xUSDC, xSMT, ONE_ON_USDC);\n            require(xUsdcForSmtAmount > 0, \"no xUSDC/xSMT pool to get _asset price\");\n\n            // get EUR price for asset for the entered amount (18 digits)\n            uint256 eurAmountForAsset = eurPriceFeed.calculateAmount(_asset, _assetAmountIn);\n            if (eurAmountForAsset == 0) {\n                return 0;\n            }\n\n            uint256 eurPriceFeedDecimals = eurPriceFeed.RETURN_DIGITS_BASE18();\n            // EUR/USD feed. It returs how many USD is 1 EUR.\n            address eurUsdFeedAddress = eurPriceFeed.eurUsdFeed();\n\n            // get how many USD is 1 EUR (8 digits)\n            // convert the amount to 18 digits\n            uint256 eurUsdDecimals = AggregatorV2V3Interface(eurUsdFeedAddress).decimals();\n            int256 amountUsdToGetEur = AggregatorV2V3Interface(eurUsdFeedAddress).latestAnswer();\n            if (amountUsdToGetEur == 0) {\n                return 0;\n            }\n            uint256 amountUsdToGetEur18 = uint256(amountUsdToGetEur).mul(\n                10**(eurPriceFeedDecimals.sub(eurUsdDecimals))\n            );\n\n            // convert the eurAmountForAsset in USDC\n            uint256 assetAmountInUSD = amountUsdToGetEur18.mul(eurAmountForAsset).div(ONE_BASE18);\n\n            // having the entered amount of the asset in USD\n            // having how much xSMT are needed to buy 1 USDC\n            // multiply those qtys\n            // the result should be how many xSMT are needed for the entered amount\n            amount = assetAmountInUSD.mul(xUsdcForSmtAmount).div(ONE_BASE18);\n        }\n        return amount;\n    }\n\n    /**\n     * @dev Gets SMT/USDC based on the last executiong of computePrice.\n     *\n     * To be consume by EurPriceFeed module as the `assetFeed` from xSMT.\n     */\n    function latestAnswer() external view returns (int256) {\n        return int256(currentPrice);\n    }\n\n    /**\n     * @dev Computes xSMT/xUSDC based on the avg price from pools containig the pair.\n     *\n     * To be consume by EurPriceFeed module as the `assetFeed` from xSMT.\n     */\n    function computePrice() public {\n        // pools will include the wrapepd SMT and xUSDC\n        // how much xUSDC are needed to buy xSmt\n        currentPrice = getAvgAmountFromPools(\n            xTokenWrapper.tokenToXToken(smtTokenAddress),\n            xTokenWrapper.tokenToXToken(USDC_ADDRESS),\n            ONE_BASE18\n        );\n\n        emit PriceComputed(msg.sender, currentPrice);\n    }\n\n    function getAvgAmountFromPools(\n        address _assetIn,\n        address _assetOut,\n        uint256 _assetAmountIn\n    ) internal view returns (uint256) {\n        address[] memory poolAddresses = registry.getBestPoolsWithLimit(_assetIn, _assetOut, 10);\n\n        uint256 totalAmount;\n        uint256 totalQty = 0;\n        uint256 singlePoolOutGivenIn = 0;\n        for (uint256 i = 0; i < poolAddresses.length; i++) {\n            singlePoolOutGivenIn = calcOutGivenIn(poolAddresses[i], _assetIn, _assetOut, _assetAmountIn);\n\n            if (singlePoolOutGivenIn > 0) {\n                totalQty = totalQty.add(1);\n                totalAmount = totalAmount.add(singlePoolOutGivenIn);\n            }\n        }\n        uint256 amountToReturn = 0;\n        if (totalAmount > 0 && totalQty > 0) {\n            amountToReturn = totalAmount.div(totalQty);\n        }\n\n        return amountToReturn;\n    }\n\n    function calcOutGivenIn(\n        address poolAddress,\n        address _assetIn,\n        address _assetOut,\n        uint256 _assetAmountIn\n    ) internal view returns (uint256) {\n        IBPool pool = IBPool(poolAddress);\n        uint256 tokenBalanceIn = pool.getBalance(_assetIn);\n        uint256 tokenBalanceOut = pool.getBalance(_assetOut);\n\n        if (tokenBalanceIn == 0 || tokenBalanceOut == 0) {\n            return 0;\n        } else {\n            uint256 tokenWeightIn = pool.getDenormalizedWeight(_assetIn);\n            uint256 tokenWeightOut = pool.getDenormalizedWeight(_assetOut);\n            uint256 amount = pool.calcOutGivenIn(\n                tokenBalanceIn,\n                tokenWeightIn,\n                tokenBalanceOut,\n                tokenWeightOut,\n                _assetAmountIn,\n                0\n            );\n            return amount;\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts/math/SafeMath.sol": {
      "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n    /**\n     * @dev Returns the addition of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        uint256 c = a + b;\n        if (c < a) return (false, 0);\n        return (true, c);\n    }\n\n    /**\n     * @dev Returns the substraction of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        if (b > a) return (false, 0);\n        return (true, a - b);\n    }\n\n    /**\n     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n        // benefit is lost if 'b' is also tested.\n        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n        if (a == 0) return (true, 0);\n        uint256 c = a * b;\n        if (c / a != b) return (false, 0);\n        return (true, c);\n    }\n\n    /**\n     * @dev Returns the division of two unsigned integers, with a division by zero flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        if (b == 0) return (false, 0);\n        return (true, a / b);\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.\n     *\n     * _Available since v3.4._\n     */\n    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {\n        if (b == 0) return (false, 0);\n        return (true, a % b);\n    }\n\n    /**\n     * @dev Returns the addition of two unsigned integers, reverting on\n     * overflow.\n     *\n     * Counterpart to Solidity's `+` operator.\n     *\n     * Requirements:\n     *\n     * - Addition cannot overflow.\n     */\n    function add(uint256 a, uint256 b) internal pure returns (uint256) {\n        uint256 c = a + b;\n        require(c >= a, \"SafeMath: addition overflow\");\n        return c;\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, reverting on\n     * overflow (when the result is negative).\n     *\n     * Counterpart to Solidity's `-` operator.\n     *\n     * Requirements:\n     *\n     * - Subtraction cannot overflow.\n     */\n    function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n        require(b <= a, \"SafeMath: subtraction overflow\");\n        return a - b;\n    }\n\n    /**\n     * @dev Returns the multiplication of two unsigned integers, reverting on\n     * overflow.\n     *\n     * Counterpart to Solidity's `*` operator.\n     *\n     * Requirements:\n     *\n     * - Multiplication cannot overflow.\n     */\n    function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n        if (a == 0) return 0;\n        uint256 c = a * b;\n        require(c / a == b, \"SafeMath: multiplication overflow\");\n        return c;\n    }\n\n    /**\n     * @dev Returns the integer division of two unsigned integers, reverting on\n     * division by zero. The result is rounded towards zero.\n     *\n     * Counterpart to Solidity's `/` operator. Note: this function uses a\n     * `revert` opcode (which leaves remaining gas untouched) while Solidity\n     * uses an invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function div(uint256 a, uint256 b) internal pure returns (uint256) {\n        require(b > 0, \"SafeMath: division by zero\");\n        return a / b;\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n     * reverting when dividing by zero.\n     *\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\n     * invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n        require(b > 0, \"SafeMath: modulo by zero\");\n        return a % b;\n    }\n\n    /**\n     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n     * overflow (when the result is negative).\n     *\n     * CAUTION: This function is deprecated because it requires allocating memory for the error\n     * message unnecessarily. For custom revert reasons use {trySub}.\n     *\n     * Counterpart to Solidity's `-` operator.\n     *\n     * Requirements:\n     *\n     * - Subtraction cannot overflow.\n     */\n    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n        require(b <= a, errorMessage);\n        return a - b;\n    }\n\n    /**\n     * @dev Returns the integer division of two unsigned integers, reverting with custom message on\n     * division by zero. The result is rounded towards zero.\n     *\n     * CAUTION: This function is deprecated because it requires allocating memory for the error\n     * message unnecessarily. For custom revert reasons use {tryDiv}.\n     *\n     * Counterpart to Solidity's `/` operator. Note: this function uses a\n     * `revert` opcode (which leaves remaining gas untouched) while Solidity\n     * uses an invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n        require(b > 0, errorMessage);\n        return a / b;\n    }\n\n    /**\n     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n     * reverting with custom message when dividing by zero.\n     *\n     * CAUTION: This function is deprecated because it requires allocating memory for the error\n     * message unnecessarily. For custom revert reasons use {tryMod}.\n     *\n     * Counterpart to Solidity's `%` operator. This function uses a `revert`\n     * opcode (which leaves remaining gas untouched) while Solidity uses an\n     * invalid opcode to revert (consuming all remaining gas).\n     *\n     * Requirements:\n     *\n     * - The divisor cannot be zero.\n     */\n    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n        require(b > 0, errorMessage);\n        return a % b;\n    }\n}\n"
    },
    "@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\n\nimport \"../utils/Context.sol\";\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    constructor () {\n        address msgSender = _msgSender();\n        _owner = msgSender;\n        emit OwnershipTransferred(address(0), msgSender);\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n        _;\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby removing any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        emit OwnershipTransferred(_owner, address(0));\n        _owner = address(0);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        emit OwnershipTransferred(_owner, newOwner);\n        _owner = newOwner;\n    }\n}\n"
    },
    "@chainlink/contracts/src/v0.7/interfaces/AggregatorV2V3Interface.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.7.0;\n\nimport \"./AggregatorInterface.sol\";\nimport \"./AggregatorV3Interface.sol\";\n\ninterface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface\n{\n}\n"
    },
    "contracts/interfaces/IBPool.sol": {
      "content": "//SPDX-License-Identifier: GPL-3.0-only\npragma solidity ^0.7.0;\n\n/**\n * @title IBPool\n * @author Protofire\n * @dev Balancer BPool contract interface.\n *\n */\ninterface IBPool {\n    function getDenormalizedWeight(address token) external view returns (uint256);\n\n    function getBalance(address token) external view returns (uint256);\n\n    function calcOutGivenIn(\n        uint256 tokenBalanceIn,\n        uint256 tokenWeightIn,\n        uint256 tokenBalanceOut,\n        uint256 tokenWeightOut,\n        uint256 tokenAmountIn,\n        uint256 swapFee\n    ) external pure returns (uint256 tokenAmountOut);\n}\n"
    },
    "contracts/interfaces/IBRegistry.sol": {
      "content": "//SPDX-License-Identifier: GPL-3.0-only\npragma solidity ^0.7.0;\n\n/**\n * @title IBRegistry\n * @author Protofire\n * @dev Balancer BRegistry contract interface.\n *\n */\n\ninterface IBRegistry {\n    function getBestPoolsWithLimit(\n        address fromToken,\n        address destToken,\n        uint256 limit\n    ) external view returns (address[] memory);\n}\n"
    },
    "contracts/interfaces/IEurPriceFeedForSmtPriceFeed.sol": {
      "content": "//SPDX-License-Identifier: GPL-3.0-only\npragma solidity ^0.7.0;\n\n/**\n * @title IEurPriceFeedForSmtPriceFeed\n * @author Protofire\n * @dev Interface to be implemented by EurPriceFeed\n *\n */\ninterface IEurPriceFeedForSmtPriceFeed {\n    /**\n     * @dev Gets the return value digits\n     */\n    function RETURN_DIGITS_BASE18() external view returns (uint256);\n\n    /**\n     * @dev Gets the eurUsdFeed from EurPriceFeed\n     */\n    function eurUsdFeed() external view returns (address);\n\n    /**\n     * @dev Gets how many EUR represents the `_amount` of `_asset`.\n     *\n     * @param _asset address of asset to get the price.\n     * @param _amount amount of `_asset`.\n     */\n    function calculateAmount(address _asset, uint256 _amount) external view returns (uint256);\n}\n"
    },
    "contracts/interfaces/IXTokenWrapper.sol": {
      "content": "//SPDX-License-Identifier: GPL-3.0-only\npragma solidity ^0.7.0;\n\n/**\n * @title IXTokenWrapper\n * @author Protofire\n * @dev XTokenWrapper Interface.\n *\n */\ninterface IXTokenWrapper {\n    /**\n     * @dev Token to xToken registry.\n     */\n    function tokenToXToken(address _token) external view returns (address);\n\n    function xTokenToToken(address _token) external view returns (address);\n}\n"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.6.0 <0.8.0;\n\n/*\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with GSN meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address payable) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes memory) {\n        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691\n        return msg.data;\n    }\n}\n"
    },
    "@chainlink/contracts/src/v0.7/interfaces/AggregatorInterface.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.7.0;\n\ninterface AggregatorInterface {\n  function latestAnswer() external view returns (int256);\n  function latestTimestamp() external view returns (uint256);\n  function latestRound() external view returns (uint256);\n  function getAnswer(uint256 roundId) external view returns (int256);\n  function getTimestamp(uint256 roundId) external view returns (uint256);\n\n  event AnswerUpdated(int256 indexed current, uint256 indexed roundId, uint256 updatedAt);\n  event NewRound(uint256 indexed roundId, address indexed startedBy, uint256 startedAt);\n}\n"
    },
    "@chainlink/contracts/src/v0.7/interfaces/AggregatorV3Interface.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.7.0;\n\ninterface AggregatorV3Interface {\n\n  function decimals() external view returns (uint8);\n  function description() external view returns (string memory);\n  function version() external view returns (uint256);\n\n  // getRoundData and latestRoundData should both raise \"No data present\"\n  // if they do not have data to report, instead of returning unset values\n  // which could be misinterpreted as actual reported values.\n  function getRoundData(uint80 _roundId)\n    external\n    view\n    returns (\n      uint80 roundId,\n      int256 answer,\n      uint256 startedAt,\n      uint256 updatedAt,\n      uint80 answeredInRound\n    );\n  function latestRoundData()\n    external\n    view\n    returns (\n      uint80 roundId,\n      int256 answer,\n      uint256 startedAt,\n      uint256 updatedAt,\n      uint80 answeredInRound\n    );\n\n}\n"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "libraries": {}
  }
}