{
    "Function": "slitherConstructorConstantVariables",
    "File": "src/kuma-protocol/KUMAFeeCollector.sol",
    "Parent Contracts": [
        "lib/openzeppelin-contracts/contracts/proxy/utils/Initializable.sol",
        "lib/openzeppelin-contracts/contracts/proxy/utils/UUPSUpgradeable.sol",
        "lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Upgrade.sol",
        "lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol",
        "src/kuma-protocol/interfaces/IKUMAFeeCollector.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "contract KUMAFeeCollector is IKUMAFeeCollector, UUPSUpgradeable, Initializable {\n    using EnumerableSet for EnumerableSet.AddressSet;\n    using SafeERC20 for IERC20;\n\n    IKUMAAddressProvider private _KUMAAddressProvider;\n    bytes32 private _riskCategory;\n    EnumerableSet.AddressSet private _payees;\n    uint256 private _totalShares;\n\n    mapping(address => uint256) private _shares;\n\n    modifier onlyManager() {\n        if (!_KUMAAddressProvider.getAccessController().hasRole(Roles.KUMA_MANAGER_ROLE, msg.sender)) {\n            revert Errors.ACCESS_CONTROL_ACCOUNT_IS_MISSING_ROLE(msg.sender, Roles.KUMA_MANAGER_ROLE);\n        }\n        _;\n    }\n\n    constructor() initializer {}\n\n    function initialize(IKUMAAddressProvider KUMAAddressProvider, bytes4 currency, bytes4 country, uint64 term)\n        external\n        override\n        initializer\n    {\n        if (address(KUMAAddressProvider) == address(0)) {\n            revert Errors.CANNOT_SET_TO_ADDRESS_ZERO();\n        }\n        if (currency == bytes4(0) || country == bytes4(0) || term == 0) {\n            revert Errors.WRONG_RISK_CATEGORY();\n        }\n        _KUMAAddressProvider = KUMAAddressProvider;\n        _riskCategory = keccak256(abi.encode(currency, country, term));\n\n        emit KUMAAddressProviderSet(address(KUMAAddressProvider));\n        emit RiskCategorySet(_riskCategory);\n    }\n\n    /**\n     * @notice Releases the accumulated fee income to the payees.\n     * @dev Uses _totalShares to calculate correct share.\n     */\n    function release() external override {\n        IERC20 KIBToken = IERC20(_KUMAAddressProvider.getKIBToken(_riskCategory));\n        uint256 availableIncome = KIBToken.balanceOf(address(this));\n\n        if (availableIncome == 0) {\n            revert Errors.NO_AVAILABLE_INCOME();\n        }\n        if (_payees.length() == 0) {\n            revert Errors.NO_PAYEES();\n        }\n\n        _release(KIBToken, availableIncome);\n    }\n\n    /**\n     * @notice Adds a payee.\n     * @dev Will update totalShares and therefore reduce the relative share of all other payees.\n     * @dev Will release existing fees before the update.\n     * @param payee The address of the payee to add.\n     * @param share The number of shares owned by the payee.\n     */\n    function addPayee(address payee, uint256 share) external override onlyManager {\n        if (_payees.contains(payee)) {\n            revert Errors.PAYEE_ALREADY_EXISTS();\n        }\n        if (payee == address(0)) {\n            revert Errors.CANNOT_SET_TO_ADDRESS_ZERO();\n        }\n        if (share == 0) {\n            revert Errors.SHARE_CANNOT_BE_ZERO();\n        }\n\n        _releaseIfAvailableIncome();\n\n        _payees.add(payee);\n        _shares[payee] = share;\n        _totalShares += share;\n\n        emit PayeeAdded(payee, share);\n    }\n\n    /**\n     * @notice Removes a payee.\n     * @dev Will update totalShares and therefore increase the relative share of all other payees.\n     * @dev Will release existing fees before the update.\n     * @param payee The address of the payee to add.\n     */\n    function removePayee(address payee) external override onlyManager {\n        if (!_payees.contains(payee)) {\n            revert Errors.PAYEE_DOES_NOT_EXIST();\n        }\n\n        _releaseIfAvailableIncome();\n\n        _payees.remove(payee);\n        _totalShares -= _shares[payee];\n        delete _shares[payee];\n\n        emit PayeeRemoved(payee);\n    }\n\n    /**\n     * @notice Updates an existing payee's share.\n     * @dev Will release existing fees before the update.\n     * @param payee Payee's address.\n     * @param share New payee's share.\n     */\n    function updatePayeeShare(address payee, uint256 share) external onlyManager {\n        if (!_payees.contains(payee)) {\n            revert Errors.PAYEE_DOES_NOT_EXIST();\n        }\n        if (share == 0) {\n            revert Errors.SHARE_CANNOT_BE_ZERO();\n        }\n\n        _releaseIfAvailableIncome();\n\n        uint256 currentShare = _shares[payee];\n\n        if (currentShare < share) {\n            _totalShares += share - currentShare;\n        } else if (currentShare > share) {\n            _totalShares -= currentShare - share;\n        }\n\n        _shares[payee] = share;\n\n        emit ShareUpdated(payee, share);\n    }\n\n    /**\n     * @notice Updates the payee configuration to a new one.\n     * @dev Will release existing fees before the update.\n     * @param newPayees Array of  new payees\n     * @param newShares Array of shares for each new payee\n     */\n    function changePayees(address[] calldata newPayees, uint256[] calldata newShares) external override onlyManager {\n        if (newPayees.length != newShares.length) {\n            revert Errors.PAYEES_AND_SHARES_MISMATCHED(newPayees.length, newShares.length);\n        }\n        if (newPayees.length == 0) {\n            revert Errors.NO_PAYEES();\n        }\n\n        _releaseIfAvailableIncome();\n\n        uint256 payeesLength = _payees.length();\n\n        if (payeesLength > 0) {\n            for (uint256 i = payeesLength; i > 0; i--) {\n                address payee = _payees.at(i - 1);\n                _payees.remove(payee);\n                delete _shares[payee];\n                emit PayeeRemoved(payee);\n            }\n            _totalShares = 0;\n        }\n\n        for (uint256 i; i < newPayees.length; i++) {\n            if (newPayees[i] == address(0)) {\n                revert Errors.CANNOT_SET_TO_ADDRESS_ZERO();\n            }\n            if (newShares[i] == 0) {\n                revert Errors.SHARE_CANNOT_BE_ZERO();\n            }\n\n            address payee = newPayees[i];\n            _payees.add(payee);\n            _shares[payee] = newShares[i];\n            _totalShares += newShares[i];\n\n            emit PayeeAdded(payee, newShares[i]);\n        }\n    }\n\n    function getKUMAAddressProvider() external view returns (IKUMAAddressProvider) {\n        return _KUMAAddressProvider;\n    }\n\n    function getRiskCategory() external view returns (bytes32) {\n        return _riskCategory;\n    }\n\n    /**\n     * @notice Internal helper function to release an available income to a all payees.\n     * @dev Uses totalShares to calculate correct share\n     * @param KIBToken Cached KIBToken for gas savings.\n     * @param availableIncome Available income to release to payees.\n     */\n    function _release(IERC20 KIBToken, uint256 availableIncome) private {\n        uint256 totalShares = _totalShares;\n\n        for (uint256 i; i < _payees.length(); i++) {\n            address payee = _payees.at(i);\n            KIBToken.safeTransfer(payee, availableIncome * _shares[payee] / totalShares);\n        }\n\n        emit FeeReleased(availableIncome);\n    }\n\n    /**\n     * @notice Internal helper function to release an available income to a all payees if there is an availble income.\n     */\n    function _releaseIfAvailableIncome() private {\n        IERC20 KIBToken = IERC20(_KUMAAddressProvider.getKIBToken(_riskCategory));\n        uint256 availableIncome = KIBToken.balanceOf(address(this));\n\n        if (availableIncome > 0) {\n            _release(KIBToken, availableIncome);\n        }\n    }\n\n    /**\n     * @return Array of current payees.\n     */\n    function getPayees() external view returns (address[] memory) {\n        return _payees.values();\n    }\n\n    /**\n     * @return Total shares.\n     */\n    function getTotalShares() external view returns (uint256) {\n        return _totalShares;\n    }\n\n    /**\n     * @return Share of specific payee.\n     */\n    function getShare(address payee) external view returns (uint256) {\n        return _shares[payee];\n    }\n\n    function _authorizeUpgrade(address newImplementation) internal override onlyManager {}\n}"
}