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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;
import {SharedStorage} from "../../libraries/SharedStorage.sol";
import {LibDiamond} from "../../libraries/LibDiamond.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

contract ManagementFacet {
    using SafeERC20 for IERC20;

    event PlatformFeeUpdated(uint256 newPlatformFee);
    event PremiumDiscountUpdated(uint256 newPremiumDiscount);
    event PremiumAddressUpdated(address premiumAddress);
    event MarketplacePaused();
    event WethAddressUpdated();

    /**
     * @notice Set the platform fee
     * @param _platformFee Fee in BPS
     */
    function setPlatformFee(uint256 _platformFee) external {
        LibDiamond.enforceIsContractOwner();
        require(_platformFee <= 10000, "Fee exceeds maximum limit");
        SharedStorage.setPlatformFee(_platformFee);
        emit PlatformFeeUpdated(_platformFee);
    }

    /**
     * @notice Set the discount for premium NFT holders
     * @param _premiumDiscount Discount in BPS
     */
    function setPremiumDiscount(uint256 _premiumDiscount) external {
        LibDiamond.enforceIsContractOwner();
        require(_premiumDiscount <= 5000, "Discount exceeds maximum limit");
        SharedStorage.setPremiumDiscount(_premiumDiscount);
        emit PremiumDiscountUpdated(_premiumDiscount);
    }
    
    /**
     * @notice Set the Premium NFT address
     * @param _premiumAddress Address of the premium NFT
     */
    function setPremiumNftAddress(address _premiumAddress) external {
        LibDiamond.enforceIsContractOwner();
        SharedStorage.setPremiumNftAddress(_premiumAddress);
        emit PremiumAddressUpdated(_premiumAddress);
    }

    /**
     * @notice Set pause/unpause for the marketplace
     * @param _paused Boolean to pause/unpause the marketplace
     */
    function setMarketplacePaused(bool _paused) external {
        LibDiamond.enforceIsContractOwner();
        SharedStorage.setPaused(_paused);
        emit MarketplacePaused();
    }
    
    /**
     * @notice Set weth address
     * @param _weth address of the weth ERC20
     */
    function setWethAddress(address _weth) external {
        LibDiamond.enforceIsContractOwner();
        SharedStorage.setWETHAddress(_weth);
        emit WethAddressUpdated();
    }

    /**
     * @notice Platform fee getter
     * @return Platform fee in BPS
     */
    function getPlatformFee() external view returns (uint256) {
        return SharedStorage.getStorage().platformFee;
    }

    /**
     * @notice Premium discount getter
     * @return Discount in BPS
     */
    function getPremiumDiscount() external view returns (uint256) {
        return SharedStorage.getStorage().premiumDiscount;
    }
    
    /**
     * @notice Premium NFT address getter
     * @return Premium NFT address
     */
    function getPremiumNftAddress() external view returns (address) {
        return SharedStorage.getStorage().premiumNftAddress;
    }

    /**
     * @notice Marketplace pause getter
     * @return Boolean if paused or not
     */
    function getMarketplacePaused() external view returns (bool) {
        return SharedStorage.getStorage().paused;
    }
    
    /**
     * @notice Weth address getter
     * @return Address of the weth ERC20
     */
    function getWethAddress() external view returns (address) {
        return SharedStorage.getStorage().wethAddress;
    }

    /**
     * @notice Withdraw ETH available on the contract
     */
    function withdrawETH() external {
        LibDiamond.enforceIsContractOwner();
        payable(msg.sender).call{value: address(this).balance}("");
    }

    /**
     * @notice Withdraw ERC20 available on the contract
     * @param erc20Token Address of the ERC20 to withdraw
     */
    function withdrawERC20(IERC20 erc20Token) external {
        LibDiamond.enforceIsContractOwner();
        uint256 erc20Balance = erc20Token.balanceOf(address(this));
        erc20Token.safeTransfer(msg.sender, erc20Balance);
    }

    // lets also make it a receiver
    receive() external payable {}
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/
import { IDiamond } from "../interfaces/IDiamond.sol";
import { IDiamondCut } from "../interfaces/IDiamondCut.sol";

// Remember to add the loupe functions from DiamondLoupeFacet to the diamond.
// The loupe functions are required by the EIP2535 Diamonds standard

error NoSelectorsGivenToAdd();
error NotContractOwner(address _user, address _contractOwner);
error NoSelectorsProvidedForFacetForCut(address _facetAddress);
error CannotAddSelectorsToZeroAddress(bytes4[] _selectors);
error NoBytecodeAtAddress(address _contractAddress, string _message);
error IncorrectFacetCutAction(uint8 _action);
error CannotAddFunctionToDiamondThatAlreadyExists(bytes4 _selector);
error CannotReplaceFunctionsFromFacetWithZeroAddress(bytes4[] _selectors);
error CannotReplaceImmutableFunction(bytes4 _selector);
error CannotReplaceFunctionWithTheSameFunctionFromTheSameFacet(bytes4 _selector);
error CannotReplaceFunctionThatDoesNotExists(bytes4 _selector);
error RemoveFacetAddressMustBeZeroAddress(address _facetAddress);
error CannotRemoveFunctionThatDoesNotExist(bytes4 _selector);
error CannotRemoveImmutableFunction(bytes4 _selector);
error InitializationFunctionReverted(address _initializationContractAddress, bytes _calldata);

library LibDiamond {
    bytes32 constant DIAMOND_STORAGE_POSITION = keccak256("diamond.standard.diamond.storage");

    struct FacetAddressAndSelectorPosition {
        address facetAddress;
        uint16 selectorPosition;
    }

    struct DiamondStorage {
        // function selector => facet address and selector position in selectors array
        mapping(bytes4 => FacetAddressAndSelectorPosition) facetAddressAndSelectorPosition;
        bytes4[] selectors;
        mapping(bytes4 => bool) supportedInterfaces;
        // owner of the contract
        address contractOwner;
    }

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

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

    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 {
        if(msg.sender != diamondStorage().contractOwner) {
            revert NotContractOwner(msg.sender, diamondStorage().contractOwner);
        }
    }

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

    // Internal function version of diamondCut
    function diamondCut(
        IDiamondCut.FacetCut[] memory _diamondCut,
        address _init,
        bytes memory _calldata
    ) internal {
        for (uint256 facetIndex; facetIndex < _diamondCut.length; facetIndex++) {
            bytes4[] memory functionSelectors = _diamondCut[facetIndex].functionSelectors;
            address facetAddress = _diamondCut[facetIndex].facetAddress;
            if(functionSelectors.length == 0) {
                revert NoSelectorsProvidedForFacetForCut(facetAddress);
            }
            IDiamondCut.FacetCutAction action = _diamondCut[facetIndex].action;
            if (action == IDiamond.FacetCutAction.Add) {
                addFunctions(facetAddress, functionSelectors);
            } else if (action == IDiamond.FacetCutAction.Replace) {
                replaceFunctions(facetAddress, functionSelectors);
            } else if (action == IDiamond.FacetCutAction.Remove) {
                removeFunctions(facetAddress, functionSelectors);
            } else {
                revert IncorrectFacetCutAction(uint8(action));
            }
        }
        emit DiamondCut(_diamondCut, _init, _calldata);
        initializeDiamondCut(_init, _calldata);
    }

    function addFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {        
        if(_facetAddress == address(0)) {
            revert CannotAddSelectorsToZeroAddress(_functionSelectors);
        }
        DiamondStorage storage ds = diamondStorage();
        uint16 selectorCount = uint16(ds.selectors.length);                
        enforceHasContractCode(_facetAddress, "LibDiamondCut: Add facet has no code");
        for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldFacetAddress = ds.facetAddressAndSelectorPosition[selector].facetAddress;
            if(oldFacetAddress != address(0)) {
                revert CannotAddFunctionToDiamondThatAlreadyExists(selector);
            }            
            ds.facetAddressAndSelectorPosition[selector] = FacetAddressAndSelectorPosition(_facetAddress, selectorCount);
            ds.selectors.push(selector);
            selectorCount++;
        }
    }

    function replaceFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {        
        DiamondStorage storage ds = diamondStorage();
        if(_facetAddress == address(0)) {
            revert CannotReplaceFunctionsFromFacetWithZeroAddress(_functionSelectors);
        }
        enforceHasContractCode(_facetAddress, "LibDiamondCut: Replace facet has no code");
        for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
            bytes4 selector = _functionSelectors[selectorIndex];
            address oldFacetAddress = ds.facetAddressAndSelectorPosition[selector].facetAddress;
            // can't replace immutable functions -- functions defined directly in the diamond in this case
            if(oldFacetAddress == address(this)) {
                revert CannotReplaceImmutableFunction(selector);
            }
            if(oldFacetAddress == _facetAddress) {
                revert CannotReplaceFunctionWithTheSameFunctionFromTheSameFacet(selector);
            }
            if(oldFacetAddress == address(0)) {
                revert CannotReplaceFunctionThatDoesNotExists(selector);
            }
            // replace old facet address
            ds.facetAddressAndSelectorPosition[selector].facetAddress = _facetAddress;
        }
    }

    function removeFunctions(address _facetAddress, bytes4[] memory _functionSelectors) internal {        
        DiamondStorage storage ds = diamondStorage();
        uint256 selectorCount = ds.selectors.length;
        if(_facetAddress != address(0)) {
            revert RemoveFacetAddressMustBeZeroAddress(_facetAddress);
        }        
        for (uint256 selectorIndex; selectorIndex < _functionSelectors.length; selectorIndex++) {
            bytes4 selector = _functionSelectors[selectorIndex];
            FacetAddressAndSelectorPosition memory oldFacetAddressAndSelectorPosition = ds.facetAddressAndSelectorPosition[selector];
            if(oldFacetAddressAndSelectorPosition.facetAddress == address(0)) {
                revert CannotRemoveFunctionThatDoesNotExist(selector);
            }
            
            
            // can't remove immutable functions -- functions defined directly in the diamond
            if(oldFacetAddressAndSelectorPosition.facetAddress == address(this)) {
                revert CannotRemoveImmutableFunction(selector);
            }
            // replace selector with last selector
            selectorCount--;
            if (oldFacetAddressAndSelectorPosition.selectorPosition != selectorCount) {
                bytes4 lastSelector = ds.selectors[selectorCount];
                ds.selectors[oldFacetAddressAndSelectorPosition.selectorPosition] = lastSelector;
                ds.facetAddressAndSelectorPosition[lastSelector].selectorPosition = oldFacetAddressAndSelectorPosition.selectorPosition;
            }
            // delete last selector
            ds.selectors.pop();
            delete ds.facetAddressAndSelectorPosition[selector];
        }
    }

    function initializeDiamondCut(address _init, bytes memory _calldata) internal {
        if (_init == address(0)) {
            return;
        }
        enforceHasContractCode(_init, "LibDiamondCut: _init address has no code");        
        (bool success, bytes memory error) = _init.delegatecall(_calldata);
        if (!success) {
            if (error.length > 0) {
                // bubble up error
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(error)
                    revert(add(32, error), returndata_size)
                }
            } else {
                revert InitializationFunctionReverted(_init, _calldata);
            }
        }        
    }

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

library SharedStorage {
    struct Storage {
        uint256 chainId;
        address wethAddress;
        address premiumNftAddress;
        uint256 platformFee;
        uint256 premiumDiscount;
        string name;
        string version;
        bool paused;
        mapping (bytes32 => bool) ordersClaimed; // Tracks if a listing has been claimed
        mapping (address => uint256) ordersCanceledAt; // below the date all orders are canceled
    }

    function getStorage() internal pure returns (Storage storage ds) {
        bytes32 position = keccak256("org.eip2535.diamond.storage");
        assembly {
            ds.slot := position
        }
    }

    function setChainId(uint256 _chainId) internal {
        getStorage().chainId = _chainId;
    }

    function setWETHAddress(address _wethAddress) internal {
        getStorage().wethAddress = _wethAddress;
    }

    function setPremiumNftAddress(address _premiumNftAddress) internal {
        getStorage().premiumNftAddress = _premiumNftAddress;
    }

    function setPlatformFee(uint256 _platformFee) internal {
        getStorage().platformFee = _platformFee;
    }

    function setPremiumDiscount(uint256 _premiumDiscount) internal {
        getStorage().premiumDiscount = _premiumDiscount;
    }

    function setName(string memory _name) internal {
        getStorage().name = _name;
    }

    function setVersion(string memory _version) internal {
        getStorage().version = _version;
    }

    function setPaused(bool _paused) internal {
        getStorage().paused = _paused;
    }

}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

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

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

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

/******************************************************************************\
* Author: Nick Mudge <[email protected]> (https://twitter.com/mudgen)
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

import { IDiamond } from "./IDiamond.sol";

interface IDiamondCut is IDiamond {    

    /// @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;    
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

{
  "optimizer": {
    "enabled": true,
    "mode": "3"
  },
  "viaIR": true,
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "abi"
      ]
    }
  },
  "detectMissingLibraries": false,
  "forceEVMLA": false,
  "enableEraVMExtensions": false,
  "libraries": {}
}

[{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"address","name":"_contractOwner","type":"address"}],"name":"NotContractOwner","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"anonymous":false,"inputs":[],"name":"MarketplacePaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newPlatformFee","type":"uint256"}],"name":"PlatformFeeUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"premiumAddress","type":"address"}],"name":"PremiumAddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newPremiumDiscount","type":"uint256"}],"name":"PremiumDiscountUpdated","type":"event"},{"anonymous":false,"inputs":[],"name":"WethAddressUpdated","type":"event"},{"inputs":[],"name":"getMarketplacePaused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPlatformFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPremiumDiscount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPremiumNftAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getWethAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"_paused","type":"bool"}],"name":"setMarketplacePaused","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_platformFee","type":"uint256"}],"name":"setPlatformFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_premiumDiscount","type":"uint256"}],"name":"setPremiumDiscount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_premiumAddress","type":"address"}],"name":"setPremiumNftAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_weth","type":"address"}],"name":"setWethAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"erc20Token","type":"address"}],"name":"withdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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