{
    "Function": "_chargeFee",
    "File": "contracts/NibblVault.sol",
    "Parent Contracts": [
        "contracts/Utilities/EIP712Base.sol",
        "contracts/Twav/Twav.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol",
        "contracts/Bancor/BancorFormula.sol",
        "contracts/Interfaces/INibblVault.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol",
        "node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"
    ],
    "High-Level Calls": [
        "NibblVaultFactory"
    ],
    "Internal Calls": [
        "safeTransferETH"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function _chargeFee(uint256 _amount) private returns(uint256) {\n        address payable _factory = factory;\n        uint256 _adminFeeAmt = NibblVaultFactory(_factory).feeAdmin();\n        uint256 _feeAdmin = (_amount * _adminFeeAmt) / SCALE ;\n        uint256 _feeCurator = (_amount * curatorFee) / SCALE ;\n        uint256 _feeCurve = (_amount * CURVE_FEE) / SCALE ;\n        feeAccruedCurator += _feeCurator;\n        //_maxSecondaryBalanceIncrease: is the max amount of secondary reserve balance that can be added to the vault\n        //_maxSecondaryBalanceIncrease cannot be more than fictitiousPrimaryReserveBalance\n        uint256 _maxSecondaryBalanceIncrease = fictitiousPrimaryReserveBalance - secondaryReserveBalance;\n        // _feeCurve can't be higher than _maxSecondaryBalanceIncrease\n        _feeCurve = _maxSecondaryBalanceIncrease > _feeCurve ? _feeCurve : _maxSecondaryBalanceIncrease; // the curve fee is capped so that secondaryReserveBalance <= fictitiousPrimaryReserveBalance\n        secondaryReserveBalance += _feeCurve;\n        secondaryReserveRatio = uint32((secondaryReserveBalance * SCALE * 1e18) / (initialTokenSupply * initialTokenPrice)); //secondaryReserveRatio is updated on every trade \n        if(_adminFeeAmt > 0) {\n            safeTransferETH(_factory, _feeAdmin); //Transfers admin fee to the factory contract\n        }\n        return _amount - (_feeAdmin + _feeCurator + _feeCurve);\n    }"
}