Contract Address Details

// Sources flattened with hardhat v2.10.1 https://hardhat.org

// File openzeppelin-contracts-upgradeable/proxy/utils/Initializable.sol


// OpenZeppelin Contracts v4.4.0 (proxy/utils/Initializable.sol)

pragma solidity ^0.8.0;

/**
 * @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 a proxied contract can't have 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() {
        require(_initializing || !_initialized, "Initializable: contract is already initialized");

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

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }
}


// File openzeppelin-contracts-upgradeable/access/IAccessControlUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControlUpgradeable {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}


// File openzeppelin-contracts-upgradeable/utils/ContextUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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 initializer {
        __Context_init_unchained();
    }

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

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    uint256[50] private __gap;
}


// File openzeppelin-contracts-upgradeable/utils/StringsUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library StringsUpgradeable {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}


// File openzeppelin-contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}


// File openzeppelin-contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;


/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
    function __ERC165_init() internal initializer {
        __ERC165_init_unchained();
    }

    function __ERC165_init_unchained() internal initializer {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165Upgradeable).interfaceId;
    }
    uint256[50] private __gap;
}


// File openzeppelin-contracts-upgradeable/access/AccessControlUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (access/AccessControl.sol)

pragma solidity ^0.8.0;





/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable {
    function __AccessControl_init() internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __AccessControl_init_unchained();
    }

    function __AccessControl_init_unchained() internal initializer {
    }
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        StringsUpgradeable.toHexString(uint160(account), 20),
                        " is missing role ",
                        StringsUpgradeable.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
    uint256[49] private __gap;
}


// File openzeppelin-contracts-upgradeable/security/PausableUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (security/Pausable.sol)

pragma solidity ^0.8.0;


/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal initializer {
        __Context_init_unchained();
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal initializer {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
    uint256[49] private __gap;
}


// File contracts/PlatformSettings.sol

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;



/// @title A platform settings for OTG contracts
/// @notice Admin can use this contract for granting and revoking roles, pause and unpause platform, set new wallets for fee receiving
/// @dev This contract inherits 'Initializable', 'AccessControlUpgradeable', 'PausableUpgradeable' contracts form openzeppelin library
contract PlatformSettings is Initializable, AccessControlUpgradeable, PausableUpgradeable{
    bytes32 public constant SECONDARY_ADMIN_ROLE = keccak256("SECONDARY_ADMIN_ROLE");
    bytes32 public constant BACKEND_ROLE = keccak256("BACKEND_ROLE");
    uint256 public constant gunDecimals = 10**18;
    uint256 public constant PERCENT_DENOMINATOR = 100;

    // address of main admin
    address public initialAdmin;
    // address of financial wallet (withdraws GUNs from contract)
    address payable public financialWallet;

    // percentage that represents validator fee during decoding process
    uint256 public validatorFeePercentageForDecoding;
    // percentage that represents platform fee during decoding process
    uint256 public platformFeePercentageForDecoding;


    bytes32 public constant BRIDGE_ROLE = keccak256("BRIDGE_ROLE");

    /// @notice this event is emitted when new financial wallet is set
    /// @param newWallet address of new financial wallet
    event newFinancialWallet(
        address indexed newWallet
    );


    error InvalidRole(address caller, bytes32 role);

    error IncorrectFeeDistribution();


    error AlreadyHasRole(address account, bytes32 role);


    error AlreadyHasNotRole(address account, bytes32 role);


    /// @notice A disposable function for initializing contract
    /// @param _admin address of initial admin of contract
    /// @dev Grants caller with admin role
    /// @dev Also calls initializers of AccessControl and Pausable contracts.
    /// @dev Sets caller as an initialAdmin and financeWallet(wallet for receiving fees and royalties)
    /// @dev Sets initial fee percentage for decoding process
    function initialize(
        address _admin
    )public initializer{
        __AccessControl_init();
        __Pausable_init_unchained();
        _setupRole(DEFAULT_ADMIN_ROLE, _admin);
        initialAdmin = _admin;
        financialWallet = payable(msg.sender);
        validatorFeePercentageForDecoding = 50;
        platformFeePercentageForDecoding = 50;
    }
// *********************** MODIFIERS *********************************************
    /// @notice verifies if message sender is an admin or secondary admin
    modifier onlyAdmin{
        if(!(hasRole(DEFAULT_ADMIN_ROLE, msg.sender) || hasRole(SECONDARY_ADMIN_ROLE,msg.sender))){
            revert InvalidRole(msg.sender, SECONDARY_ADMIN_ROLE);
        }
        _;
    }

    // *********************** VIEW FUNCTIONS *********************************************
    /// TODO restrict function visibility from view to pure
    function version() public pure returns (uint32){
        //version in format aaa.bbb.ccc => aaa*1E6+bbb*1E3+ccc;
        return uint32(1000001);
    }

// *********************** FUNCTIONS *********************************************
    /// @notice checks account for admin roles
    function isAdmin(address account) public view returns(bool){
        return (hasRole(DEFAULT_ADMIN_ROLE, account)||hasRole(SECONDARY_ADMIN_ROLE, account));
    }

    /// @notice checks account for backend role
    function isBackendRole(address account) public view returns(bool){
        return hasRole(BACKEND_ROLE, account);
    }

    function isBridgeRole(address account) public view returns(bool){
        return hasRole(BRIDGE_ROLE, account);
    }

    /// @notice checks account for admin roles or if platform is not paused
    function isAdminOrNotPaused(address caller) public view returns(bool){
        return(!paused()||hasRole(DEFAULT_ADMIN_ROLE,caller)||hasRole(SECONDARY_ADMIN_ROLE,caller));
    }

    /// TODO check if this function must exist
    /// @notice returns a number, that represents amount of fee, which validator will receive after decoding process
    function getValidatorFeeForDecoding(uint256 _price)public view returns(uint256){
        if((platformFeePercentageForDecoding + validatorFeePercentageForDecoding)!=100){
            revert IncorrectFeeDistribution();
        }
        return (_price* gunDecimals * validatorFeePercentageForDecoding)/PERCENT_DENOMINATOR;
    }

    /// TODO check if this function must exist
    /// @notice returns a number, that represents amount of fee, which financialWallet will receive after decoding process
    function getPlatformFeeForDecoding(uint256 _price)public view returns(uint256){
        if((platformFeePercentageForDecoding + validatorFeePercentageForDecoding)!=100){
            revert IncorrectFeeDistribution();
        }
        return (_price* gunDecimals * platformFeePercentageForDecoding)/PERCENT_DENOMINATOR;
    }
    /// @notice suspends most functions in contracts
    /// @dev Caller must be admin
    function pause() public onlyAdmin{
        _pause();
    }

    /// @notice restores most functions in contracts
    /// @dev Caller must be admin
    function unpause() public onlyAdmin{
        _unpause();
    }

    /// @notice sets new address as a payable financialWallet
    /// @dev caller must be admin, emits 'newFinancialWallet' 
    function setNewFinancialWallet(address _newWalletAddress) public onlyAdmin{
        financialWallet = payable(_newWalletAddress);
        emit newFinancialWallet(_newWalletAddress);
    }

    /// @notice granting secondary admin role to a specific address
    /// @param account address of a specific account 
    function grantSecondaryAdminRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(hasRole(SECONDARY_ADMIN_ROLE, account)){
            revert AlreadyHasRole(account, SECONDARY_ADMIN_ROLE); 
        }
        grantRole(SECONDARY_ADMIN_ROLE, account);
    }

    /// @notice revoking secondary admin role from a specific address
    /// @param account address of a specific account
    function revokeSecondaryAdminRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(!hasRole(SECONDARY_ADMIN_ROLE, account)){
            revert AlreadyHasNotRole(account, SECONDARY_ADMIN_ROLE); 
        }
        revokeRole(SECONDARY_ADMIN_ROLE, account);
    }

    /// @notice granting backend admin role from a specific address
    /// @param account address of a specific account 
    function grantBackendRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(hasRole(BACKEND_ROLE, account)){
            revert AlreadyHasRole(account, BACKEND_ROLE); 
        }
        grantRole(BACKEND_ROLE, account);
    }

    /// @notice revoking backend admin role from a specific address
    /// @param account address of a specific account 
    function revokeBackendRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(!hasRole(BACKEND_ROLE, account)){
            revert AlreadyHasNotRole(account, BACKEND_ROLE); 
        }
        revokeRole(BACKEND_ROLE, account);
    }

    function grantBridgeRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(hasRole(BRIDGE_ROLE, account)){
            revert AlreadyHasRole(account, BRIDGE_ROLE); 
        }
        grantRole(BRIDGE_ROLE, account);
    }

    function revokeBridgeRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(!hasRole(BRIDGE_ROLE, account)){
            revert AlreadyHasNotRole(account, BRIDGE_ROLE); 
        }
        revokeRole(BRIDGE_ROLE, account);
    }

    /// TODO maybe it will be better, to set validatorFeePercentageForDecoding and platformFeePercentageForDecoding with one function
    /// @notice Sets a number, that represents amount of fee, which validator will receive after 
    /// @dev caller must be admin
    function setValidatorFeePercentageForDecoding(uint256 _percentage) public onlyAdmin{
        validatorFeePercentageForDecoding = _percentage;
    }
    
    /// @notice Sets a number, that represents amount of fee, which financialWallet will receive after 
    /// @dev caller must be admin
    function setPlatformFeePercentageForDecoding(uint256 _percentage) public onlyAdmin{
        platformFeePercentageForDecoding = _percentage;
    }

    // TODO DEPRECATED, will be deleted sooner
    function getValidatorFeePercentageForDecoding() external view returns(uint256){
        return(validatorFeePercentageForDecoding);
    }

    // TODO DEPRECATED, will be deleted sooner
    function getPlatformFeePercentageForDecoding() external view returns(uint256){
        return(platformFeePercentageForDecoding);
    }
}


// File contracts/GUNFinanceTreasury.sol


pragma solidity ^0.8.0;


contract GUNFinanceTreasury is Initializable {
    address public platformSettingsContractAddress;

    event TransferFunds(
        address indexed from,
        address indexed to,
        uint256 amount
    );

    error ContractsIsPaused();

    error InvalidRole(address caller, bytes32 role);

    error insufficientBalance(uint256 amount, uint256 balance);

    error UnsuccessfulPayment(address to, uint256 amount);

    error IncorrectDistribution();

    function initialize(
        address _platformSettingsContractAddress
    ) public initializer {
        platformSettingsContractAddress = _platformSettingsContractAddress;
    }
    // *********************** MODIFIERS *********************************************

    /// @notice verifies if switch "_paused" in PlatformSettings contract is off
    modifier whenNotPaused() {
        if (PlatformSettings(platformSettingsContractAddress).paused()) {
            revert ContractsIsPaused();
        }
        _;
    }

    /// @notice verifies if message sender is an admin or secondary admin
    modifier onlyAdmin() {
        if (
            !(PlatformSettings(platformSettingsContractAddress).hasRole(
                PlatformSettings(platformSettingsContractAddress)
                    .DEFAULT_ADMIN_ROLE(),
                msg.sender
            ) ||
                PlatformSettings(platformSettingsContractAddress).hasRole(
                    PlatformSettings(platformSettingsContractAddress)
                        .SECONDARY_ADMIN_ROLE(),
                    msg.sender
                ))
        ) {
            revert InvalidRole(
                msg.sender,
                PlatformSettings(platformSettingsContractAddress)
                    .SECONDARY_ADMIN_ROLE()
            );
        }
        _;
    }
    // *********************** VIEW FUNCTIONS *********************************************
    function version() public pure returns (uint32) {
        //version in format aaa.bbb.ccc => aaa*1E6+bbb*1E3+ccc;
        return uint32(1000000);
    }

    // *********************** FUNCTIONS *********************************************

    // Receive function to handle incoming Ether
    receive() external payable whenNotPaused {
        emit TransferFunds(msg.sender, address(this), msg.value);
    }

    function sendToAddress(
        address _receiver,
        uint256 _amount
    ) public onlyAdmin whenNotPaused {
        if (_amount > address(this).balance) {
            revert insufficientBalance(_amount, address(this).balance);
        }
        _sendToAddress(_receiver, _amount);
    }

    function batchSendToAddress(
        address[] memory _receivers,
        uint256[] memory _amounts
    ) public onlyAdmin whenNotPaused {
        if (_amounts.length != _receivers.length) {
            revert IncorrectDistribution();
        }

        for (uint256 i = 0; i < _receivers.length; ++i) {
            _sendToAddress(_receivers[i], _amounts[i]);
        }
    }

    function _sendToAddress(
        address _receiver,
        uint256 _amount
    ) internal virtual {
        (bool success, ) = _receiver.call{value: _amount}("");
        if (!success) {
            revert UnsuccessfulPayment(_receiver, _amount);
        }
        emit TransferFunds(address(this), _receiver, _amount);
    }
}