// File: contracts/ext/treasurySplitterManager/impl/TreasurySplitterManager.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "../model/ITreasurySplitterManager.sol";
import "@ethereansos/swissknife/contracts/generic/impl/LazyInitCapableElement.sol";
import { ReflectionUtilities, TransferUtilities } from "@ethereansos/swissknife/contracts/lib/GeneralUtilities.sol";
import { Getters } from "../../../base/lib/KnowledgeBase.sol";
import "../../../core/model/IOrganization.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract TreasurySplitterManager is ITreasurySplitterManager, LazyInitCapableElement {
    using ReflectionUtilities for address;
    using Getters for IOrganization;
    using TransferUtilities for address;

    uint256 public constant override ONE_HUNDRED = 1e18;

    uint256 public override flushExecutorRewardPercentage;
    uint256 public override executorRewardPercentage;

    uint256 public override lastSplitBlock;
    uint256 public override splitInterval;

    bytes32[] private _keys;
    uint256[] private _percentages;

    bytes32 private _flushKey;

    constructor(bytes memory lazyInitData) LazyInitCapableElement(lazyInitData) {
    }

    function _lazyInit(bytes memory lazyInitData) internal override virtual returns (bytes memory) {
        uint256 firstSplitBlock;
        (firstSplitBlock, splitInterval, _keys, _percentages, _flushKey, flushExecutorRewardPercentage, executorRewardPercentage) = abi.decode(lazyInitData, (uint256, uint256, bytes32[], uint256[], bytes32, uint256, uint256));
        _setKeysAndPercentages(_keys, _percentages);
        lastSplitBlock = firstSplitBlock < splitInterval ? firstSplitBlock : (firstSplitBlock - splitInterval);
        return "";
    }

    function _supportsInterface(bytes4 interfaceId) internal override pure returns(bool) {
        return
            interfaceId == type(ITreasurySplitterManager).interfaceId ||
            interfaceId == this.ONE_HUNDRED.selector ||
            interfaceId == this.lastSplitBlock.selector ||
            interfaceId == this.splitInterval.selector ||
            interfaceId == this.nextSplitBlock.selector ||
            interfaceId == this.executorRewardPercentage.selector ||
            interfaceId == this.receiversAndPercentages.selector ||
            interfaceId == this.splitTreasury.selector;
    }

    receive() external payable {
    }

    function nextSplitBlock() public view override returns(uint256) {
        return lastSplitBlock == 0 ? 0 : (lastSplitBlock + splitInterval);
    }

    function receiversAndPercentages() public override view returns (bytes32[] memory keys, address[] memory addresses, uint256[] memory percentages) {
        keys = _keys;
        addresses = IOrganization(host).list(keys);
        percentages = _percentages;
    }

    function flushReceiver() public override view returns(bytes32 key, address addr) {
        addr = IOrganization(host).get(key = _flushKey);
    }

    function splitTreasury(address executorRewardAddress) external override {
        require(block.number >= nextSplitBlock(), "Too early, BRO");
        lastSplitBlock = block.number;

        uint256 availableAmount = address(this).balance;

        require(availableAmount > 0, "balance");

        uint256 receiverAmount = 0;

        if(executorRewardPercentage > 0) {
            address to = executorRewardAddress == address(0) ? msg.sender : executorRewardAddress;
            to.submit(receiverAmount = _calculatePercentage(availableAmount, executorRewardPercentage), "");
            availableAmount -= receiverAmount;
        }

        uint256 remainingAmount = availableAmount;

        (bytes32[] memory keys, address[] memory addresses, uint256[] memory percentages) = receiversAndPercentages();

        address parentTreasury = address(IOrganization(host).treasuryManager());

        if(addresses.length == 0) {
            parentTreasury.submit(remainingAmount, "");
            emit Splitted(bytes32(0), parentTreasury, remainingAmount);
            return;
        }

        address receiver;
        for(uint256 i = 0; i < addresses.length - 1; i++) {
            receiver = addresses[i];
            receiver = receiver != address(0) ? receiver : parentTreasury;
            receiverAmount = _calculatePercentage(availableAmount, percentages[i]);
            receiver.submit(receiverAmount, "");
            emit Splitted(keys[i], receiver, receiverAmount);
            remainingAmount -= receiverAmount;
        }

        receiver = addresses[addresses.length - 1];
        receiver = receiver != address(0) ? receiver : parentTreasury;
        receiver.submit(remainingAmount, "");
        emit Splitted(keys[addresses.length - 1], receiver, remainingAmount);
    }

    function flushERC20Tokens(address[] calldata tokenAddresses, address executorRewardReceiver) external override {
        address to = executorRewardReceiver != address(0) ? executorRewardReceiver : msg.sender;
        (,address wallet) = flushReceiver();
        wallet = wallet != address(0) ? wallet : address(IOrganization(host).treasuryManager());
        require(wallet != address(0), "zero");
        require(tokenAddresses.length > 0, "tokens");
        for(uint256 i = 0; i < tokenAddresses.length; i++) {
            address tokenAddress = tokenAddresses[i];
            require(tokenAddress != address(0), "token");
            uint256 availableAmount = IERC20(tokenAddress).balanceOf(address(this));
            require(availableAmount > 0, "value");
            if(flushExecutorRewardPercentage > 0) {
                uint256 receiverAmount = _calculatePercentage(availableAmount, flushExecutorRewardPercentage);
                tokenAddress.safeTransfer(to, receiverAmount);
                availableAmount -= receiverAmount;
            }
            tokenAddress.safeTransfer(wallet, availableAmount);
        }
    }

    function _calculatePercentage(uint256 totalSupply, uint256 percentage) private pure returns(uint256) {
        return (totalSupply * ((percentage * 1e18) / ONE_HUNDRED)) / 1e18;
    }

    function _setKeysAndPercentages(bytes32[] memory keys, uint256[] memory percentages) private {
        delete _keys;
        delete _percentages;
        uint256 percentage = 0;
        if(keys.length > 0) {
            for(uint256 i = 0; i < keys.length - 1; i++) {
                _keys.push(keys[i]);
                _percentages.push(percentages[i]);
                percentage += percentages[i];
            }
            _keys.push(keys[keys.length - 1]);
        }
        require(percentage < ONE_HUNDRED, "overflow");
    }
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// File: contracts/core/model/IOrganization.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "@ethereansos/swissknife/contracts/dynamicMetadata/model/IDynamicMetadataCapableElement.sol";

interface IOrganization is IDynamicMetadataCapableElement {

    struct Component {
        bytes32 key;
        address location;
        bool active;
        bool log;
    }

    function keyOf(address componentAddress) external view returns(bytes32);
    function history(bytes32 key) external view returns(address[] memory componentsAddresses);
    function batchHistory(bytes32[] calldata keys) external view returns(address[][] memory componentsAddresses);

    function get(bytes32 key) external view returns(address componentAddress);
    function list(bytes32[] calldata keys) external view returns(address[] memory componentsAddresses);
    function isActive(address subject) external view returns(bool);
    function keyIsActive(bytes32 key) external view returns(bool);

    function set(Component calldata) external returns(address replacedComponentAddress);
    function batchSet(Component[] calldata) external returns (address[] memory replacedComponentAddresses);

    event ComponentSet(bytes32 indexed key, address indexed from, address indexed to, bool active);

    function submit(address location, bytes calldata payload, address restReceiver) external payable returns(bytes memory response);
}
// File: contracts/base/lib/KnowledgeBase.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "../../core/model/IOrganization.sol";
import "../model/IMicroservicesManager.sol";
import "../model/IStateManager.sol";
import "../model/IProposalsManager.sol";
import "../model/ITreasuryManager.sol";
import { ReflectionUtilities, BytesUtilities } from "@ethereansos/swissknife/contracts/lib/GeneralUtilities.sol";

library Grimoire {
    bytes32 constant public COMPONENT_KEY_TREASURY_MANAGER = 0xcfe1633df53a0649d88d788961f26058c5e7a0b5644675f19f67bb2975827ba2;
    bytes32 constant public COMPONENT_KEY_STATE_MANAGER = 0xd1d09e8f5708558865b8acd5f13c69781ae600e42dbc7f52b8ef1b9e33dbcd36;
    bytes32 constant public COMPONENT_KEY_MICROSERVICES_MANAGER = 0x0aef4c8f864010d3e1817691f51ade95a646fffafd7f3df9cb8200def342cfd7;
    bytes32 constant public COMPONENT_KEY_PROPOSALS_MANAGER = 0xa504406933af7ca120d20b97dfc79ea9788beb3c4d3ac1ff9a2c292b2c28e0cc;
}

library Getters {

    function treasuryManager(IOrganization organization) internal view returns(ITreasuryManager) {
        return ITreasuryManager(organization.get(Grimoire.COMPONENT_KEY_TREASURY_MANAGER));
    }

    function stateManager(IOrganization organization) internal view returns(IStateManager) {
        return IStateManager(organization.get(Grimoire.COMPONENT_KEY_STATE_MANAGER));
    }

    function microservicesManager(IOrganization organization) internal view returns(IMicroservicesManager) {
        return IMicroservicesManager(organization.get(Grimoire.COMPONENT_KEY_MICROSERVICES_MANAGER));
    }

    function proposalsManager(IOrganization organization) internal view returns(IProposalsManager) {
        return IProposalsManager(organization.get(Grimoire.COMPONENT_KEY_PROPOSALS_MANAGER));
    }
}

library Setters {

    function replaceTreasuryManager(IOrganization organization, address newComponentAddress) internal returns(ITreasuryManager oldComponent) {
        require(newComponentAddress != address(0), "void");
        oldComponent = ITreasuryManager(organization.set(IOrganization.Component(Grimoire.COMPONENT_KEY_TREASURY_MANAGER, newComponentAddress, false, true)));
    }

    function replaceStateManager(IOrganization organization, address newComponentAddress) internal returns(IStateManager oldComponent) {
        require(newComponentAddress != address(0), "void");
        oldComponent = IStateManager(organization.set(IOrganization.Component(Grimoire.COMPONENT_KEY_STATE_MANAGER, newComponentAddress, false ,true)));
    }

    function replaceMicroservicesManager(IOrganization organization, address newComponentAddress) internal returns(IMicroservicesManager oldComponent) {
        require(newComponentAddress != address(0), "void");
        oldComponent = IMicroservicesManager(organization.set(IOrganization.Component(Grimoire.COMPONENT_KEY_MICROSERVICES_MANAGER, newComponentAddress, true, true)));
    }

    function replaceProposalsManager(IOrganization organization, address newComponentAddress) internal returns(IProposalsManager oldComponent) {
        require(newComponentAddress != address(0), "void");
        oldComponent = IProposalsManager(organization.set(IOrganization.Component(Grimoire.COMPONENT_KEY_PROPOSALS_MANAGER, newComponentAddress, true, true)));
    }
}

library Treasury {
    using ReflectionUtilities for address;

    function storeETH(IOrganization organization, uint256 value) internal {
        if(value != 0) {
            organization.get(Grimoire.COMPONENT_KEY_TREASURY_MANAGER).submit(value, "");
        }
    }

    function callTemporaryFunction(ITreasuryManager treasuryManager, bytes4 selector, address subject, uint256 value, bytes memory data) internal returns(bytes memory response) {
        address oldServer = treasuryManager.setAdditionalFunction(selector, subject, false);
        response = address(treasuryManager).submit(value, abi.encodePacked(selector, data));
        treasuryManager.setAdditionalFunction(selector, oldServer, false);
    }
}

library State {
    using BytesUtilities for bytes;

    bytes32 constant public ENTRY_TYPE_ADDRESS = 0x421683f821a0574472445355be6d2b769119e8515f8376a1d7878523dfdecf7b;
    bytes32 constant public ENTRY_TYPE_ADDRESS_ARRAY = 0x23d8ff3dc5aed4a634bcf123581c95e70c60ac0e5246916790aef6d4451ff4c1;
    bytes32 constant public ENTRY_TYPE_BOOL = 0xc1053bdab4a5cf55238b667c39826bbb11a58be126010e7db397c1b67c24271b;
    bytes32 constant public ENTRY_TYPE_BOOL_ARRAY = 0x8761250c4d2c463ce51f91f5d2c2508fa9142f8a42aa9f30b965213bf3e6c2ac;
    bytes32 constant public ENTRY_TYPE_BYTES = 0xb963e9b45d014edd60cff22ec9ad383335bbc3f827be2aee8e291972b0fadcf2;
    bytes32 constant public ENTRY_TYPE_BYTES_ARRAY = 0x084b42f8a8730b98eb0305d92103d9107363192bb66162064a34dc5716ebe1a0;
    bytes32 constant public ENTRY_TYPE_STRING = 0x97fc46276c172633607a331542609db1e3da793fca183d594ed5a61803a10792;
    bytes32 constant public ENTRY_TYPE_STRING_ARRAY = 0xa227fd7a847724343a7dda3598ee0fb2d551b151b73e4a741067596daa6f5658;
    bytes32 constant public ENTRY_TYPE_UINT256 = 0xec13d6d12b88433319b64e1065a96ea19cd330ef6603f5f6fb685dde3959a320;
    bytes32 constant public ENTRY_TYPE_UINT256_ARRAY = 0xc1b76e99a35aa41ed28bbbd9e6c7228760c87b410ebac94fa6431da9b592411f;

    function getAddress(IStateManager stateManager, string memory name) internal view returns(address) {
        return stateManager.get(name).value.asAddress();
    }

    function setAddress(IStateManager stateManager, string memory name, address val) internal returns(address oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_ADDRESS, abi.encodePacked(val))).asAddress();
    }

    function getAddressArray(IStateManager stateManager, string memory name) internal view returns(address[] memory) {
        return stateManager.get(name).value.asAddressArray();
    }

    function setAddressArray(IStateManager stateManager, string memory name, address[] memory val) internal returns(address[] memory oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_ADDRESS_ARRAY, abi.encode(val))).asAddressArray();
    }

    function getBool(IStateManager stateManager, string memory name) internal view returns(bool) {
        return stateManager.get(name).value.asBool();
    }

    function setBool(IStateManager stateManager, string memory name, bool val) internal returns(bool oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_BOOL, abi.encode(val ? 1 : 0))).asBool();
    }

    function getBoolArray(IStateManager stateManager, string memory name) internal view returns(bool[] memory) {
        return stateManager.get(name).value.asBoolArray();
    }

    function setBoolArray(IStateManager stateManager, string memory name, bool[] memory val) internal returns(bool[] memory oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_BOOL_ARRAY, abi.encode(val))).asBoolArray();
    }

    function getBytes(IStateManager stateManager, string memory name) internal view returns(bytes memory) {
        return stateManager.get(name).value;
    }

    function setBytes(IStateManager stateManager, string memory name, bytes memory val) internal returns(bytes memory oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_BYTES, val));
    }

    function getBytesArray(IStateManager stateManager, string memory name) internal view returns(bytes[] memory) {
        return stateManager.get(name).value.asBytesArray();
    }

    function setBytesArray(IStateManager stateManager, string memory name, bytes[] memory val) internal returns(bytes[] memory oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_BYTES_ARRAY, abi.encode(val))).asBytesArray();
    }

    function getString(IStateManager stateManager, string memory name) internal view returns(string memory) {
        return string(stateManager.get(name).value);
    }

    function setString(IStateManager stateManager, string memory name, string memory val) internal returns(string memory oldValue) {
        return string(stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_STRING, bytes(val))));
    }

    function getStringArray(IStateManager stateManager, string memory name) internal view returns(string[] memory) {
        return stateManager.get(name).value.asStringArray();
    }

    function setStringArray(IStateManager stateManager, string memory name, string[] memory val) internal returns(string[] memory oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_STRING_ARRAY, abi.encode(val))).asStringArray();
    }

    function getUint256(IStateManager stateManager, string memory name) internal view returns(uint256) {
        return stateManager.get(name).value.asUint256();
    }

    function setUint256(IStateManager stateManager, string memory name, uint256 val) internal returns(uint256 oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_UINT256, abi.encode(val))).asUint256();
    }

    function getUint256Array(IStateManager stateManager, string memory name) internal view returns(uint256[] memory) {
        return stateManager.get(name).value.asUint256Array();
    }

    function setUint256Array(IStateManager stateManager, string memory name, uint256[] memory val) internal returns(uint256[] memory oldValue) {
        return stateManager.set(IStateManager.StateEntry(name, ENTRY_TYPE_UINT256_ARRAY, abi.encode(val))).asUint256Array();
    }
}
// File: @ethereansos/swissknife/contracts/lib/GeneralUtilities.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

library BehaviorUtilities {

    function randomKey(uint256 i) internal view returns (bytes32) {
        return keccak256(abi.encode(i, block.timestamp, block.number, tx.origin, tx.gasprice, block.coinbase, block.difficulty, msg.sender, blockhash(block.number - 5)));
    }

    function calculateProjectedArraySizeAndLoopUpperBound(uint256 arraySize, uint256 start, uint256 offset) internal pure returns(uint256 projectedArraySize, uint256 projectedArrayLoopUpperBound) {
        if(arraySize != 0 && start < arraySize && offset != 0) {
            uint256 length = start + offset;
            if(start < (length = length > arraySize ? arraySize : length)) {
                projectedArraySize = (projectedArrayLoopUpperBound = length) - start;
            }
        }
    }
}

library ReflectionUtilities {

    function read(address subject, bytes memory inputData) internal view returns(bytes memory returnData) {
        bool result;
        (result, returnData) = subject.staticcall(inputData);
        if(!result) {
            assembly {
                revert(add(returnData, 0x20), mload(returnData))
            }
        }
    }

    function submit(address subject, uint256 value, bytes memory inputData) internal returns(bytes memory returnData) {
        bool result;
        (result, returnData) = subject.call{value : value}(inputData);
        if(!result) {
            assembly {
                revert(add(returnData, 0x20), mload(returnData))
            }
        }
    }

    function isContract(address subject) internal view returns (bool) {
        if(subject == address(0)) {
            return false;
        }
        uint256 codeLength;
        assembly {
            codeLength := extcodesize(subject)
        }
        return codeLength > 0;
    }

    function clone(address originalContract) internal returns(address copyContract) {
        assembly {
            mstore(
                0,
                or(
                    0x5880730000000000000000000000000000000000000000803b80938091923cF3,
                    mul(originalContract, 0x1000000000000000000)
                )
            )
            copyContract := create(0, 0, 32)
            switch extcodesize(copyContract)
                case 0 {
                    invalid()
                }
        }
    }
}

library BytesUtilities {

    bytes private constant ALPHABET = "0123456789abcdef";
    string internal constant BASE64_ENCODER_DATA = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';

    function asAddress(bytes memory b) internal pure returns(address) {
        if(b.length == 0) {
            return address(0);
        }
        if(b.length == 20) {
            address addr;
            assembly {
                addr := mload(add(b, 20))
            }
            return addr;
        }
        return abi.decode(b, (address));
    }

    function asAddressArray(bytes memory b) internal pure returns(address[] memory callResult) {
        if(b.length > 0) {
            return abi.decode(b, (address[]));
        }
    }

    function asBool(bytes memory bs) internal pure returns(bool) {
        return asUint256(bs) != 0;
    }

    function asBoolArray(bytes memory b) internal pure returns(bool[] memory callResult) {
        if(b.length > 0) {
            return abi.decode(b, (bool[]));
        }
    }

    function asBytesArray(bytes memory b) internal pure returns(bytes[] memory callResult) {
        if(b.length > 0) {
            return abi.decode(b, (bytes[]));
        }
    }

    function asString(bytes memory b) internal pure returns(string memory callResult) {
        if(b.length > 0) {
            return abi.decode(b, (string));
        }
    }

    function asStringArray(bytes memory b) internal pure returns(string[] memory callResult) {
        if(b.length > 0) {
            return abi.decode(b, (string[]));
        }
    }

    function asUint256(bytes memory bs) internal pure returns(uint256 x) {
        if (bs.length >= 32) {
            assembly {
                x := mload(add(bs, add(0x20, 0)))
            }
        }
    }

    function asUint256Array(bytes memory b) internal pure returns(uint256[] memory callResult) {
        if(b.length > 0) {
            return abi.decode(b, (uint256[]));
        }
    }

    function toString(bytes memory data) internal pure returns(string memory) {
        bytes memory str = new bytes(2 + data.length * 2);
        str[0] = "0";
        str[1] = "x";
        for (uint256 i = 0; i < data.length; i++) {
            str[2+i*2] = ALPHABET[uint256(uint8(data[i] >> 4))];
            str[3+i*2] = ALPHABET[uint256(uint8(data[i] & 0x0f))];
        }
        return string(str);
    }

    function asSingletonArray(bytes memory a) internal pure returns(bytes[] memory array) {
        array = new bytes[](1);
        array[0] = a;
    }

    function toBase64(bytes memory data) internal pure returns (string memory) {
        if (data.length == 0) return '';

        string memory table = BASE64_ENCODER_DATA;

        uint256 encodedLen = 4 * ((data.length + 2) / 3);

        string memory result = new string(encodedLen + 32);

        assembly {
            mstore(result, encodedLen)

            let tablePtr := add(table, 1)

            let dataPtr := data
            let endPtr := add(dataPtr, mload(data))

            let resultPtr := add(result, 32)

            for {} lt(dataPtr, endPtr) {}
            {
                dataPtr := add(dataPtr, 3)
                let input := mload(dataPtr)

                mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F))))
                resultPtr := add(resultPtr, 1)
                mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F))))
                resultPtr := add(resultPtr, 1)
                mstore8(resultPtr, mload(add(tablePtr, and(shr( 6, input), 0x3F))))
                resultPtr := add(resultPtr, 1)
                mstore8(resultPtr, mload(add(tablePtr, and(        input,  0x3F))))
                resultPtr := add(resultPtr, 1)
            }

            switch mod(mload(data), 3)
            case 1 { mstore(sub(resultPtr, 2), shl(240, 0x3d3d)) }
            case 2 { mstore(sub(resultPtr, 1), shl(248, 0x3d)) }
        }

        return result;
    }
}

library StringUtilities {

    bytes1 private constant CHAR_0 = bytes1('0');
    bytes1 private constant CHAR_A = bytes1('A');
    bytes1 private constant CHAR_a = bytes1('a');
    bytes1 private constant CHAR_f = bytes1('f');

    bytes  internal constant BASE64_DECODER_DATA = hex"0000000000000000000000000000000000000000000000000000000000000000"
                                                   hex"00000000000000000000003e0000003f3435363738393a3b3c3d000000000000"
                                                   hex"00000102030405060708090a0b0c0d0e0f101112131415161718190000000000"
                                                   hex"001a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132330000000000";

    function isEmpty(string memory test) internal pure returns (bool) {
        return equals(test, "");
    }

    function equals(string memory a, string memory b) internal pure returns(bool) {
        return keccak256(abi.encodePacked(a)) == keccak256(abi.encodePacked(b));
    }

    function toLowerCase(string memory str) internal pure returns(string memory) {
        bytes memory bStr = bytes(str);
        for (uint256 i = 0; i < bStr.length; i++) {
            bStr[i] = bStr[i] >= 0x41 && bStr[i] <= 0x5A ? bytes1(uint8(bStr[i]) + 0x20) : bStr[i];
        }
        return string(bStr);
    }

    function asBytes(string memory str) internal pure returns(bytes memory toDecode) {
        bytes memory data = abi.encodePacked(str);
        if(data.length == 0 || data[0] != "0" || (data[1] != "x" && data[1] != "X")) {
            return "";
        }
        uint256 start = 2;
        toDecode = new bytes((data.length - 2) / 2);

        for(uint256 i = 0; i < toDecode.length; i++) {
            toDecode[i] = bytes1(_fromHexChar(uint8(data[start++])) + _fromHexChar(uint8(data[start++])) * 16);
        }
    }

    function toBase64(string memory input) internal pure returns(string memory) {
        return BytesUtilities.toBase64(abi.encodePacked(input));
    }

    function fromBase64(string memory _data) internal pure returns (bytes memory) {
        bytes memory data = bytes(_data);

        if (data.length == 0) return new bytes(0);
        require(data.length % 4 == 0, "invalid base64 decoder input");

        bytes memory table = BASE64_DECODER_DATA;

        uint256 decodedLen = (data.length / 4) * 3;

        bytes memory result = new bytes(decodedLen + 32);

        assembly {
            let lastBytes := mload(add(data, mload(data)))
            if eq(and(lastBytes, 0xFF), 0x3d) {
                decodedLen := sub(decodedLen, 1)
                if eq(and(lastBytes, 0xFFFF), 0x3d3d) {
                    decodedLen := sub(decodedLen, 1)
                }
            }

            mstore(result, decodedLen)

            let tablePtr := add(table, 1)

            let dataPtr := data
            let endPtr := add(dataPtr, mload(data))

            let resultPtr := add(result, 32)

            for {} lt(dataPtr, endPtr) {}
            {
               dataPtr := add(dataPtr, 4)
               let input := mload(dataPtr)

               let output := add(
                   add(
                       shl(18, and(mload(add(tablePtr, and(shr(24, input), 0xFF))), 0xFF)),
                       shl(12, and(mload(add(tablePtr, and(shr(16, input), 0xFF))), 0xFF))),
                   add(
                       shl( 6, and(mload(add(tablePtr, and(shr( 8, input), 0xFF))), 0xFF)),
                               and(mload(add(tablePtr, and(        input , 0xFF))), 0xFF)
                    )
                )
                mstore(resultPtr, shl(232, output))
                resultPtr := add(resultPtr, 3)
            }
        }

        return result;
    }

    function _fromHexChar(uint8 c) private pure returns (uint8) {
        bytes1 charc = bytes1(c);
        return charc < CHAR_0 || charc > CHAR_f ? 0 : (charc < CHAR_A ? 0 : 10) + c - uint8(charc < CHAR_A ? CHAR_0 : charc < CHAR_a ? CHAR_A : CHAR_a);
    }
}

library Uint256Utilities {
    function asSingletonArray(uint256 n) internal pure returns(uint256[] memory array) {
        array = new uint256[](1);
        array[0] = n;
    }

    function toHex(uint256 _i) internal pure returns (string memory) {
        return BytesUtilities.toString(abi.encodePacked(_i));
    }

    function toString(uint256 _i) internal pure returns (string memory _uintAsString) {
        if (_i == 0) {
            return "0";
        }
        uint256 j = _i;
        uint256 len;
        while (j != 0) {
            len++;
            j /= 10;
        }
        bytes memory bstr = new bytes(len);
        uint256 k = len;
        while (_i != 0) {
            k = k-1;
            uint8 temp = (48 + uint8(_i - _i / 10 * 10));
            bytes1 b1 = bytes1(temp);
            bstr[k] = b1;
            _i /= 10;
        }
        return string(bstr);
    }

    function sum(uint256[] memory arr) internal pure returns (uint256 result) {
        for(uint256 i = 0; i < arr.length; i++) {
            result += arr[i];
        }
    }
}

library AddressUtilities {
    function asSingletonArray(address a) internal pure returns(address[] memory array) {
        array = new address[](1);
        array[0] = a;
    }

    function toString(address _addr) internal pure returns (string memory) {
        return _addr == address(0) ? "0x0000000000000000000000000000000000000000" : BytesUtilities.toString(abi.encodePacked(_addr));
    }
}

library Bytes32Utilities {

    function asSingletonArray(bytes32 a) internal pure returns(bytes32[] memory array) {
        array = new bytes32[](1);
        array[0] = a;
    }

    function toString(bytes32 bt) internal pure returns (string memory) {
        return bt == bytes32(0) ?  "0x0000000000000000000000000000000000000000000000000000000000000000" : BytesUtilities.toString(abi.encodePacked(bt));
    }
}

library TransferUtilities {
    using ReflectionUtilities for address;

    function balanceOf(address erc20TokenAddress, address account) internal view returns(uint256) {
        if(erc20TokenAddress == address(0)) {
            return account.balance;
        }
        return abi.decode(erc20TokenAddress.read(abi.encodeWithSelector(IERC20(erc20TokenAddress).balanceOf.selector, account)), (uint256));
    }

    function allowance(address erc20TokenAddress, address account, address spender) internal view returns(uint256) {
        if(erc20TokenAddress == address(0)) {
            return 0;
        }
        return abi.decode(erc20TokenAddress.read(abi.encodeWithSelector(IERC20(erc20TokenAddress).allowance.selector, account, spender)), (uint256));
    }

    function safeApprove(address erc20TokenAddress, address spender, uint256 value) internal {
        bytes memory returnData = erc20TokenAddress.submit(0, abi.encodeWithSelector(IERC20(erc20TokenAddress).approve.selector, spender, value));
        require(returnData.length == 0 || abi.decode(returnData, (bool)), 'APPROVE_FAILED');
    }

    function safeTransfer(address erc20TokenAddress, address to, uint256 value) internal {
        if(value == 0) {
            return;
        }
        if(erc20TokenAddress == address(0)) {
            to.submit(value, "");
            return;
        }
        bytes memory returnData = erc20TokenAddress.submit(0, abi.encodeWithSelector(IERC20(erc20TokenAddress).transfer.selector, to, value));
        require(returnData.length == 0 || abi.decode(returnData, (bool)), 'TRANSFER_FAILED');
    }

    function safeTransferFrom(address erc20TokenAddress, address from, address to, uint256 value) internal {
        if(value == 0) {
            return;
        }
        if(erc20TokenAddress == address(0)) {
            to.submit(value, "");
            return;
        }
        bytes memory returnData = erc20TokenAddress.submit(0, abi.encodeWithSelector(IERC20(erc20TokenAddress).transferFrom.selector, from, to, value));
        require(returnData.length == 0 || abi.decode(returnData, (bool)), 'TRANSFERFROM_FAILED');
    }
}
// File: @ethereansos/swissknife/contracts/generic/impl/LazyInitCapableElement.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "../model/ILazyInitCapableElement.sol";
import { ReflectionUtilities } from "../../lib/GeneralUtilities.sol";

abstract contract LazyInitCapableElement is ILazyInitCapableElement {
    using ReflectionUtilities for address;

    address public override initializer;
    address public override host;

    constructor(bytes memory lazyInitData) {
        if(lazyInitData.length > 0) {
            _privateLazyInit(lazyInitData);
        }
    }

    function lazyInit(bytes calldata lazyInitData) override external returns (bytes memory lazyInitResponse) {
        return _privateLazyInit(lazyInitData);
    }

    function supportsInterface(bytes4 interfaceId) override external view returns(bool) {
        return
            interfaceId == type(IERC165).interfaceId ||
            interfaceId == this.supportsInterface.selector ||
            interfaceId == type(ILazyInitCapableElement).interfaceId ||
            interfaceId == this.lazyInit.selector ||
            interfaceId == this.initializer.selector ||
            interfaceId == this.subjectIsAuthorizedFor.selector ||
            interfaceId == this.host.selector ||
            interfaceId == this.setHost.selector ||
            _supportsInterface(interfaceId);
    }

    function setHost(address newValue) external override authorizedOnly returns(address oldValue) {
        oldValue = host;
        host = newValue;
        emit Host(oldValue, newValue);
    }

    function subjectIsAuthorizedFor(address subject, address location, bytes4 selector, bytes calldata payload, uint256 value) public override virtual view returns(bool) {
        (bool chidlElementValidationIsConsistent, bool chidlElementValidationResult) = _subjectIsAuthorizedFor(subject, location, selector, payload, value);
        if(chidlElementValidationIsConsistent) {
            return chidlElementValidationResult;
        }
        if(subject == host) {
            return true;
        }
        if(!host.isContract()) {
            return false;
        }
        (bool result, bytes memory resultData) = host.staticcall(abi.encodeWithSelector(ILazyInitCapableElement(host).subjectIsAuthorizedFor.selector, subject, location, selector, payload, value));
        return result && abi.decode(resultData, (bool));
    }

    function _privateLazyInit(bytes memory lazyInitData) private returns (bytes memory lazyInitResponse) {
        require(initializer == address(0), "init");
        initializer = msg.sender;
        (host, lazyInitResponse) = abi.decode(lazyInitData, (address, bytes));
        emit Host(address(0), host);
        lazyInitResponse = _lazyInit(lazyInitResponse);
    }

    function _lazyInit(bytes memory) internal virtual returns (bytes memory) {
        return "";
    }

    function _supportsInterface(bytes4 selector) internal virtual view returns (bool);

    function _subjectIsAuthorizedFor(address, address, bytes4, bytes calldata, uint256) internal virtual view returns(bool, bool) {
    }

    modifier authorizedOnly {
        require(_authorizedOnly(), "unauthorized");
        _;
    }

    function _authorizedOnly() internal returns(bool) {
        return subjectIsAuthorizedFor(msg.sender, address(this), msg.sig, msg.data, msg.value);
    }
}
// File: contracts/ext/treasurySplitterManager/model/ITreasurySplitterManager.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "@ethereansos/swissknife/contracts/generic/model/ILazyInitCapableElement.sol";

interface ITreasurySplitterManager is ILazyInitCapableElement {

    event Splitted(bytes32 indexed subDAO, address indexed receiver, uint256 amount);

    function ONE_HUNDRED() external pure returns(uint256);

    function lastSplitBlock() external view returns (uint256);

    function splitInterval() external view returns (uint256);

    function nextSplitBlock() external view returns (uint256);

    function executorRewardPercentage() external view returns(uint256);

    function flushExecutorRewardPercentage() external view returns(uint256);

    function receiversAndPercentages() external view returns (bytes32[] memory keys, address[] memory addresses, uint256[] memory percentages);

    function flushReceiver() external view returns(bytes32 key, address addr);

    function flushERC20Tokens(address[] calldata tokenAddresses, address executorRewardReceiver) external;

    function splitTreasury(address executorRewardReceiver) external;
}
// File: @ethereansos/swissknife/contracts/generic/model/ILazyInitCapableElement.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

interface ILazyInitCapableElement is IERC165 {

    function lazyInit(bytes calldata lazyInitData) external returns(bytes memory initResponse);
    function initializer() external view returns(address);

    event Host(address indexed from, address indexed to);

    function host() external view returns(address);
    function setHost(address newValue) external returns(address oldValue);

    function subjectIsAuthorizedFor(address subject, address location, bytes4 selector, bytes calldata payload, uint256 value) external view returns(bool);
}
// File: @ethereansos/swissknife/contracts/dynamicMetadata/model/IDynamicMetadataCapableElement.sol



//SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "../../generic/model/ILazyInitCapableElement.sol";

interface IDynamicMetadataCapableElement is ILazyInitCapableElement {

    function uri() external view returns(string memory);
    function plainUri() external view returns(string memory);

    function setUri(string calldata newValue) external returns (string memory oldValue);

    function dynamicUriResolver() external view returns(address);
    function setDynamicUriResolver(address newValue) external returns(address oldValue);
}
// File: contracts/base/model/ITreasuryManager.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "@ethereansos/swissknife/contracts/generic/model/ILazyInitCapableElement.sol";

interface ITreasuryManager is ILazyInitCapableElement {

    struct TransferEntry {
        address token;
        uint256[] objectIds;
        uint256[] values;
        address receiver;
        bool safe;
        bool batch;
        bool withData;
        bytes data;
    }

    function transfer(address token, uint256 value, address receiver, uint256 tokenType, uint256 objectId, bool safe, bool withData, bytes calldata data) external returns(bool result, bytes memory returnData);
    function batchTransfer(TransferEntry[] calldata transferEntries) external returns(bool[] memory results, bytes[] memory returnDatas);

    function submit(address location, bytes calldata payload, address restReceiver) external payable returns(bytes memory response);

    function setAdditionalFunction(bytes4 selector, address newServer, bool log) external returns (address oldServer);
    event AdditionalFunction(address caller, bytes4 indexed selector, address indexed oldServer, address indexed newServer);
}
// File: contracts/base/model/IProposalsManager.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "@ethereansos/swissknife/contracts/generic/model/ILazyInitCapableElement.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";

interface IProposalsManager is IERC1155Receiver, ILazyInitCapableElement {

    struct ProposalCode {
        address location;
        bytes bytecode;
    }

    struct ProposalCodes {
        ProposalCode[] codes;
        bool alsoTerminate;
    }

    struct Proposal {
        address proposer;
        address[] codeSequence;
        uint256 creationBlock;
        uint256 accept;
        uint256 refuse;
        address triggeringRules;
        address[] canTerminateAddresses;
        address[] validatorsAddresses;
        bool validationPassed;
        uint256 terminationBlock;
        bytes votingTokens;
    }

    struct ProposalConfiguration {
        address[] collections;
        uint256[] objectIds;
        uint256[] weights;
        address creationRules;
        address triggeringRules;
        address[] canTerminateAddresses;
        address[] validatorsAddresses;
    }

    function batchCreate(ProposalCodes[] calldata codeSequences) external returns(bytes32[] memory createdProposalIds);

    function list(bytes32[] calldata proposalIds) external view returns(Proposal[] memory);

    function votes(bytes32[] calldata proposalIds, address[] calldata voters, bytes32[][] calldata items) external view returns(uint256[][] memory accepts, uint256[][] memory refuses, uint256[][] memory toWithdraw);
    function weight(bytes32 code) external view returns(uint256);

    function vote(address erc20TokenAddress, bytes memory permitSignature, bytes32 proposalId, uint256 accept, uint256 refuse, address voter, bool alsoTerminate) external payable;
    function batchVote(bytes[] calldata data) external payable;

    function withdrawAll(bytes32[] memory proposalIds, address voterOrReceiver, bool afterTermination) external;

    function terminate(bytes32[] calldata proposalIds) external;

    function configuration() external view returns(ProposalConfiguration memory);
    function setConfiguration(ProposalConfiguration calldata newValue) external returns(ProposalConfiguration memory oldValue);

    function lastProposalId() external view returns(bytes32);

    function lastVoteBlock(address voter) external view returns (uint256);

    event ProposalCreated(address indexed proposer, address indexed code, bytes32 indexed proposalId);
    event ProposalWeight(bytes32 indexed proposalId, address indexed collection, uint256 indexed id, bytes32 key, uint256 weight);
    event ProposalTerminated(bytes32 indexed proposalId, bool result, bytes errorData);

    event Accept(bytes32 indexed proposalId, address indexed voter, bytes32 indexed item, uint256 amount);
    event MoveToAccept(bytes32 indexed proposalId, address indexed voter, bytes32 indexed item, uint256 amount);
    event RetireAccept(bytes32 indexed proposalId, address indexed voter, bytes32 indexed item, uint256 amount);

    event Refuse(bytes32 indexed proposalId, address indexed voter, bytes32 indexed item, uint256 amount);
    event MoveToRefuse(bytes32 indexed proposalId, address indexed voter, bytes32 indexed item, uint256 amount);
    event RetireRefuse(bytes32 indexed proposalId, address indexed voter, bytes32 indexed item, uint256 amount);
}

interface IProposalChecker {
    function check(address proposalsManagerAddress, bytes32 id, bytes calldata data, address from, address voter) external view returns(bool);
}

interface IExternalProposalsManagerCommands {
    function createProposalCodeSequence(bytes32 proposalId, IProposalsManager.ProposalCode[] memory codeSequenceInput, address sender) external returns (address[] memory codeSequence, IProposalsManager.ProposalConfiguration memory localConfiguration);
    function proposalCanBeFinalized(bytes32 proposalId, IProposalsManager.Proposal memory proposal, bool validationPassed, bool result) external view returns (bool);
    function isVotable(bytes32 proposalId, IProposalsManager.Proposal memory proposal, address from, address voter, bool voteOrWithtraw) external view returns (bytes memory response);
}
// File: contracts/base/model/IStateManager.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "@ethereansos/swissknife/contracts/generic/model/ILazyInitCapableElement.sol";

interface IStateManager is ILazyInitCapableElement {

    struct StateEntry {
        string key;
        bytes32 entryType;
        bytes value;
    }

    function size() external view returns (uint256);
    function all() external view returns (StateEntry[] memory);
    function partialList(uint256 start, uint256 offset) external view returns (StateEntry[] memory);
    function list(string[] calldata keys) external view returns (StateEntry[] memory);
    function listByIndices(uint256[] calldata indices) external view returns (StateEntry[] memory);

    function exists(string calldata key) external view returns(bool result, uint256 index);

    function get(string calldata key) external view returns(StateEntry memory);
    function getByIndex(uint256 index) external view returns(StateEntry memory);

    function set(StateEntry calldata newValue) external returns(bytes memory replacedValue);
    function batchSet(StateEntry[] calldata newValues) external returns(bytes[] memory replacedValues);

    function remove(string calldata key) external returns(bytes32 removedType, bytes memory removedValue);
    function batchRemove(string[] calldata keys) external returns(bytes32[] memory removedTypes, bytes[] memory removedValues);
    function removeByIndices(uint256[] calldata indices) external returns(bytes32[] memory removedTypes, bytes[] memory removedValues);
}
// File: contracts/base/model/IMicroservicesManager.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.7.0;

import "@ethereansos/swissknife/contracts/generic/model/ILazyInitCapableElement.sol";

interface IMicroservicesManager is ILazyInitCapableElement {

    struct Microservice {
        string key;
        address location;
        string methodSignature;
        bool submittable;
        string returnAbiParametersArray;
        bool isInternal;
        bool needsSender;
    }

    function size() external view returns (uint256);
    function all() external view returns (Microservice[] memory);
    function partialList(uint256 start, uint256 offset) external view returns (Microservice[] memory);
    function list(string[] calldata keys) external view returns (Microservice[] memory);
    function listByIndices(uint256[] calldata indices) external view returns (Microservice[] memory);

    function exists(string calldata key) external view returns(bool result, uint256 index);

    function get(string calldata key) external view returns(Microservice memory);
    function getByIndex(uint256 index) external view returns(Microservice memory);

    function set(Microservice calldata newValue) external returns(Microservice memory replacedValue);
    function batchSet(Microservice[] calldata newValues) external returns(Microservice[] memory replacedValues);

    event MicroserviceAdded(address indexed sender, bytes32 indexed keyHash, string key, address indexed location, string methodSignature, bool submittable, string returnAbiParametersArray, bool isInternal, bool needsSender);

    function remove(string calldata key) external returns(Microservice memory removedValue);
    function batchRemove(string[] calldata keys) external returns(Microservice[] memory removedValues);
    function removeByIndices(uint256[] calldata indices) external returns(Microservice[] memory removedValues);

    event MicroserviceRemoved(address indexed sender, bytes32 indexed keyHash, string key, address indexed location, string methodSignature, bool submittable, string returnAbiParametersArray, bool isInternal, bool needsSender);

    function read(string calldata key, bytes calldata data) external view returns(bytes memory returnData);
    function submit(string calldata key, bytes calldata data) external payable returns(bytes memory returnData);
}
// File: @openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
        @dev Handles the receipt of a single ERC1155 token type. This function is
        called at the end of a `safeTransferFrom` after the balance has been updated.
        To accept the transfer, this must return
        `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
        (i.e. 0xf23a6e61, or its own function selector).
        @param operator The address which initiated the transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param id The ID of the token being transferred
        @param value The amount of tokens being transferred
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
    */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
        @dev Handles the receipt of a multiple ERC1155 token types. This function
        is called at the end of a `safeBatchTransferFrom` after the balances have
        been updated. To accept the transfer(s), this must return
        `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
        (i.e. 0xbc197c81, or its own function selector).
        @param operator The address which initiated the batch transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param ids An array containing ids of each token being transferred (order and length must match values array)
        @param values An array containing amounts of each token being transferred (order and length must match ids array)
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
    */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



// SPDX-License-Identifier: MIT

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 IERC165 {
    /**
     * @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);
}