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

interface IDiamondCut {
    enum FacetCutAction {
        Add,
        Replace,
        Remove
    }
    // Add=0, Replace=1, Remove=2

    struct FacetCut {
        address facetAddress;
        FacetCutAction action;
        bytes4[] functionSelectors;
    }

    /// @notice Add/replace/remove any number of functions and optionally execute
    ///         a function with delegatecall
    /// @param _diamondCut Contains the facet addresses and function selectors
    /// @param _init The address of the contract or facet to execute _calldata
    /// @param _calldata A function call, including function selector and arguments
    ///                  _calldata is executed with delegatecall on _init
    function diamondCut(
        FacetCut[] calldata _diamondCut,
        address _init,
        bytes calldata _calldata
    ) external;

    event DiamondCut(FacetCut[] _diamondCut, address _init, bytes _calldata);
}

/******************************************************************************\
* Author: Nick Mudge <nick@perfectabstractions.com> (https://twitter.com/mudgen)
* EIP-2535 Diamond Standard: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

// A loupe is a small magnifying glass used to look at diamonds.
// These functions look at diamonds
interface IDiamondLoupe {
    /// These functions are expected to be called frequently
    /// by tools.

    struct Facet {
        address facetAddress;
        bytes4[] functionSelectors;
    }

    /// @notice Gets all facet addresses and their four byte function selectors.
    /// @return facets_ Facet
    function facets() external view returns (Facet[] memory facets_);

    /// @notice Gets all the function selectors supported by a specific facet.
    /// @param _facet The facet address.
    /// @return facetFunctionSelectors_
    function facetFunctionSelectors(
        address _facet
    ) external view returns (bytes4[] memory facetFunctionSelectors_);

    /// @notice Get all the facet addresses used by a diamond.
    /// @return facetAddresses_
    function facetAddresses()
        external
        view
        returns (address[] memory facetAddresses_);

    /// @notice Gets the facet that supports the given selector.
    /// @dev If facet is not found return address(0).
    /// @param _functionSelector The function selector.
    /// @return facetAddress_ The facet address.
    function facetAddress(
        bytes4 _functionSelector
    ) external view returns (address facetAddress_);
}

library LibDiamond {
    bytes32 constant DIAMOND_STORAGE_POSITION =
        keccak256("diamond.standard.diamond.storage");
    bytes32 constant REWARD_STORAGE_POSITION =
        keccak256("diamond.standard.reward.storage");
    address public constant BURN_ADDRESS =
        0x000000000000000000000000000000000000dEaD;

    bytes32 public constant VESTING_ROLE = keccak256("VESTING_ROLE");
    bytes32 public constant EXCLUDED_FROM_FEE_ROLE =
        keccak256("EXCLUDED_FROM_FEE_ROLE");
    bytes32 public constant EXCLUDED_FROM_MAX_WALLET_ROLE =
        keccak256("EXCLUDED_FROM_MAX_WALLET_ROLE");
    bytes32 public constant EXCLUDED_FROM_REWARD_ROLE =
        keccak256("EXCLUDED_FROM_REWARD_ROLE");
    bytes32 public constant PROCESS_FEE_ROLE = keccak256("PROCESS_FEE_ROLE");
    bytes32 public constant CLAIM_REWARD_ROLE = keccak256("CLAIM_REWARD_ROLE");
    bytes32 public constant WHITELISTED_ROLE = keccak256("WHITELIST_ROLE");
    bytes32 public constant BLACKLISTED_ROLE = keccak256("BLACKLIST_ROLE");

    uint256 internal constant MAGNITUDE = 2 ** 128;

    uint32 public constant PERCENTAGE_DENOMINATOR = 10000;

    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    event DiamondCut(
        IDiamondCut.FacetCut[] _diamondCut,
        address _init,
        bytes _calldata
    );

    struct FacetAddressAndPosition {
        address facetAddress;
        uint16 functionSelectorPosition; // position in facetFunctionSelectors.functionSelectors array
    }

    struct FacetFunctionSelectors {
        bytes4[] functionSelectors;
        uint16 facetAddressPosition; // position of facetAddress in facetAddresses array
    }

    struct DiamondStorage {
        // maps function selector to the facet address and
        // the position of the selector in the facetFunctionSelectors.selectors array
        mapping(bytes4 => FacetAddressAndPosition) selectorToFacetAndPosition;
        // maps facet addresses to function selectors
        mapping(address => FacetFunctionSelectors) facetFunctionSelectors;
        // facet addresses
        address[] facetAddresses;
        // Used to query if a contract implements an interface.
        // Used to implement ERC-165.
        mapping(bytes4 => bool) supportedInterfaces;
        address contractOwner;
        string name;
        string symbol;
        address methodsExposureFacetAddress;
        address liquidityWallet;
        address defaultRouter;
        uint256 numTokensToSwap;
        uint256 maxTokenPerWallet;
        mapping(address => bool) lpPools;
        mapping(address => bool) swapRouters;
        uint32 processingGas;
        bool processingFees;
        Fee fee;
        bool processRewards;
        address vestingContract;
        FeeExt feeExt;
    }

    function diamondStorage()
        internal
        pure
        returns (DiamondStorage storage ds)
    {
        bytes32 position = DIAMOND_STORAGE_POSITION;
        assembly {
            ds.slot := position
        }
    }

    // ----- REWARD ----- //

    struct Fee {
        uint32 liquidityBuyFee;
        uint32 rewardBuyFee;
        uint32 liquiditySellFee;
        uint32 rewardSellFee;
    }

    struct FeeExt {
        address treasury;
        address dev;
        uint32 treasurySellFee;
        uint32 treasuryBuyFee;
        uint32 devSellFee;
        uint32 devBuyFee;
    }

    struct RewardToken {
        address token;
        address router;
        address[] path;
    }

    struct Map {
        address[] keys;
        mapping(address => uint256) values;
        mapping(address => uint256) indexOf;
        mapping(address => bool) inserted;
    }

    struct RewardStorage {
        mapping(address => int256) magnifiedReward;
        mapping(address => uint256) withdrawnReward;
        mapping(address => uint256) claimTimes;
        mapping(address => bool) manualClaim;
        mapping(address => uint256) rewardBalances;
        uint256 totalRewardSupply;
        RewardToken rewardToken;
        RewardToken goHam;
        Map rewardHolders;
        uint256 magnifiedRewardPerShare;
        uint256 minRewardBalance;
        uint256 totalAccruedReward;
        uint256 lastProcessedIndex;
        uint32 claimTimeout;
        bool useV3;
        bytes pathV3;
    }

    function rewardStorage() internal pure returns (RewardStorage storage rs) {
        bytes32 position = REWARD_STORAGE_POSITION;
        assembly {
            rs.slot := position
        }
    }

    function setContractOwner(address _newOwner) internal {
        DiamondStorage storage ds = diamondStorage();
        address previousOwner = ds.contractOwner;
        ds.contractOwner = _newOwner;
        emit OwnershipTransferred(previousOwner, _newOwner);
    }

    function contractOwner() internal view returns (address contractOwner_) {
        contractOwner_ = diamondStorage().contractOwner;
    }

    function enforceIsContractOwner() internal view {
        require(
            msg.sender == diamondStorage().contractOwner,
            "LibDiamond: Must be contract owner"
        );
    }

    // Internal function version of diamondCut
    function diamondCut(
        IDiamondCut.FacetCut[] memory _diamondCut,
        address _init,
        bytes memory _calldata
    ) internal {
        for (
            uint256 facetIndex;
            facetIndex < _diamondCut.length;
            facetIndex++
        ) {
            IDiamondCut.FacetCutAction action = _diamondCut[facetIndex].action;
            if (action == IDiamondCut.FacetCutAction.Add) {
                addFunctions(
                    _diamondCut[facetIndex].facetAddress,
                    _diamondCut[facetIndex].functionSelectors
                );
            } else if (action == IDiamondCut.FacetCutAction.Replace) {
                replaceFunctions(
                    _diamondCut[facetIndex].facetAddress,
                    _diamondCut[facetIndex].functionSelectors
                );
            } else if (action == IDiamondCut.FacetCutAction.Remove) {
                removeFunctions(
                    _diamondCut[facetIndex].facetAddress,
                    _diamondCut[facetIndex].functionSelectors
                );
            } else {
                revert("LibDiamondCut: Incorrect FacetCutAction");
            }
        }
        emit DiamondCut(_diamondCut, _init, _calldata);
        initializeDiamondCut(_init, _calldata);
    }

    function addFunctions(
        address _facetAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        require(
            _functionSelectors.length > 0,
            "LibDiamondCut: No selectors in facet to cut"
        );
        DiamondStorage storage ds = diamondStorage();
        require(
            _facetAddress != address(0),
            "LibDiamondCut: Add facet can't be address(0)"
        );
        uint16 selectorPosition = uint16(
            ds.facetFunctionSelectors[_facetAddress].functionSelectors.length
        );
        // add new facet address if it does not exist
        if (selectorPosition == 0) {
            enforceHasContractCode(
                _facetAddress,
                "LibDiamondCut: New facet has no code"
            );
            ds
                .facetFunctionSelectors[_facetAddress]
                .facetAddressPosition = uint16(ds.facetAddresses.length);
            ds.facetAddresses.push(_facetAddress);
        }
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;
            selectorIndex++
        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldFacetAddress = ds
                .selectorToFacetAndPosition[selector]
                .facetAddress;
            require(
                oldFacetAddress == address(0),
                "LibDiamondCut: Can't add function that already exists"
            );
            ds.facetFunctionSelectors[_facetAddress].functionSelectors.push(
                selector
            );
            ds
                .selectorToFacetAndPosition[selector]
                .facetAddress = _facetAddress;
            ds
                .selectorToFacetAndPosition[selector]
                .functionSelectorPosition = selectorPosition;
            selectorPosition++;
        }
    }

    function replaceFunctions(
        address _facetAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        require(
            _functionSelectors.length > 0,
            "LibDiamondCut: No selectors in facet to cut"
        );
        DiamondStorage storage ds = diamondStorage();
        require(
            _facetAddress != address(0),
            "LibDiamondCut: Add facet can't be address(0)"
        );
        uint16 selectorPosition = uint16(
            ds.facetFunctionSelectors[_facetAddress].functionSelectors.length
        );
        // add new facet address if it does not exist
        if (selectorPosition == 0) {
            enforceHasContractCode(
                _facetAddress,
                "LibDiamondCut: New facet has no code"
            );
            ds
                .facetFunctionSelectors[_facetAddress]
                .facetAddressPosition = uint16(ds.facetAddresses.length);
            ds.facetAddresses.push(_facetAddress);
        }
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;
            selectorIndex++
        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldFacetAddress = ds
                .selectorToFacetAndPosition[selector]
                .facetAddress;
            require(
                oldFacetAddress != _facetAddress,
                "LibDiamondCut: Can't replace function with same function"
            );
            // add function
            ds
                .selectorToFacetAndPosition[selector]
                .functionSelectorPosition = selectorPosition;
            ds.facetFunctionSelectors[_facetAddress].functionSelectors.push(
                selector
            );
            ds
                .selectorToFacetAndPosition[selector]
                .facetAddress = _facetAddress;
            selectorPosition++;
        }
    }

    function removeFunctions(
        address _facetAddress,
        bytes4[] memory _functionSelectors
    ) internal {
        require(
            _functionSelectors.length > 0,
            "LibDiamondCut: No selectors in facet to cut"
        );
        DiamondStorage storage ds = diamondStorage();
        // if function does not exist then do nothing and return
        require(
            _facetAddress == address(0),
            "LibDiamondCut: Remove facet address must be address(0)"
        );
        for (
            uint256 selectorIndex;
            selectorIndex < _functionSelectors.length;
            selectorIndex++
        ) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldFacetAddress = ds
                .selectorToFacetAndPosition[selector]
                .facetAddress;
            removeFunction(oldFacetAddress, selector);
        }
    }

    function removeFunction(address _facetAddress, bytes4 _selector) internal {
        DiamondStorage storage ds = diamondStorage();
        require(
            _facetAddress != address(0),
            "LibDiamondCut: Can't remove function that doesn't exist"
        );
        // an immutable function is a function defined directly in a diamond
        require(
            _facetAddress != address(this),
            "LibDiamondCut: Can't remove immutable function"
        );
        // replace selector with last selector, then delete last selector
        uint256 selectorPosition = ds
            .selectorToFacetAndPosition[_selector]
            .functionSelectorPosition;
        uint256 lastSelectorPosition = ds
            .facetFunctionSelectors[_facetAddress]
            .functionSelectors
            .length - 1;
        // if not the same then replace _selector with lastSelector
        if (selectorPosition != lastSelectorPosition) {
            bytes4 lastSelector = ds
                .facetFunctionSelectors[_facetAddress]
                .functionSelectors[lastSelectorPosition];
            ds.facetFunctionSelectors[_facetAddress].functionSelectors[
                selectorPosition
            ] = lastSelector;
            ds
                .selectorToFacetAndPosition[lastSelector]
                .functionSelectorPosition = uint16(selectorPosition);
        }
        // delete the last selector
        ds.facetFunctionSelectors[_facetAddress].functionSelectors.pop();
        delete ds.selectorToFacetAndPosition[_selector];

        // if no more selectors for facet address then delete the facet address
        if (lastSelectorPosition == 0) {
            // replace facet address with last facet address and delete last facet address
            uint256 lastFacetAddressPosition = ds.facetAddresses.length - 1;
            uint256 facetAddressPosition = ds
                .facetFunctionSelectors[_facetAddress]
                .facetAddressPosition;
            if (facetAddressPosition != lastFacetAddressPosition) {
                address lastFacetAddress = ds.facetAddresses[
                    lastFacetAddressPosition
                ];
                ds.facetAddresses[facetAddressPosition] = lastFacetAddress;
                ds
                    .facetFunctionSelectors[lastFacetAddress]
                    .facetAddressPosition = uint16(facetAddressPosition);
            }
            ds.facetAddresses.pop();
            delete ds
                .facetFunctionSelectors[_facetAddress]
                .facetAddressPosition;
        }
    }

    function initializeDiamondCut(
        address _init,
        bytes memory _calldata
    ) internal {
        if (_init == address(0)) {
            require(
                _calldata.length == 0,
                "LibDiamondCut: _init is address(0) but_calldata is not empty"
            );
        } else {
            require(
                _calldata.length > 0,
                "LibDiamondCut: _calldata is empty but _init is not address(0)"
            );
            if (_init != address(this)) {
                enforceHasContractCode(
                    _init,
                    "LibDiamondCut: _init address has no code"
                );
            }
            (bool success, bytes memory error) = _init.delegatecall(_calldata);
            if (!success) {
                if (error.length > 0) {
                    // bubble up the error
                    revert(string(error));
                } else {
                    revert("LibDiamondCut: _init function reverted");
                }
            }
        }
    }

    function enforceHasContractCode(
        address _contract,
        string memory _errorMessage
    ) internal view {
        uint256 contractSize;
        assembly {
            contractSize := extcodesize(_contract)
        }
        require(contractSize > 0, _errorMessage);
    }
}

contract WithStorage {
    function _ds() internal pure returns (LibDiamond.DiamondStorage storage) {
        return LibDiamond.diamondStorage();
    }

    function _rs() internal pure returns (LibDiamond.RewardStorage storage) {
        return LibDiamond.rewardStorage();
    }
}
[{"inputs":[{"internalType":"address","name":"liquidityWallet","type":"address"},{"internalType":"address","name":"defaultRouter","type":"address"},{"internalType":"address","name":"defaultPair","type":"address"},{"internalType":"address","name":"diamondCutAndLoupeFacetAddress","type":"address"},{"internalType":"address","name":"methodsExposureFacetAddress","type":"address"}],"stateMutability":"payable","type":"constructor"},{"inputs":[{"internalType":"string","name":"msg_","type":"string"}],"name":"FunctionNotFound","type":"error"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]