Add HostIt fee basis points configuration

Introduces the ability to set HostIt fee basis points via an admin function in LibMarketplace, updates initialization to set the fee, adds related error and event definitions, and adjusts the IMarketplace interface for fee calculation. This enhances fee management flexibility for the marketplace.

Author: dadadave80

src/inits/HostItInit.sol

@@ -14,6 +14,7 @@ contract HostItInit {
         LibDiamond._diamondStorage().supportedInterfaces[type(ITicket).interfaceId] = true;
         LibFactory._factoryStorage().ticketProxy = _ticketProxy;
         LibMarketplace._setFeeTokenAddresses(_feeTypes, _tokens);
+        LibMarketplace._setHostItFeeBps(300);
         emit HostItInitialized();
     }
 }

src/interfaces/IMarketplace.sol

@@ -34,10 +34,11 @@ interface IMarketplace {
 
     function getHostItBalance(FeeType feeType) external view returns (uint256);
 
+    function calculateHostItFee(uint256 fee) external view returns (uint256);
+
     //*//////////////////////////////////////////////////////////////////////////
     //                               PURE FUNCTIONS
     //////////////////////////////////////////////////////////////////////////*//
 
-    function calculateHostItFee(uint256 fee) external pure returns (uint256);
     function getRefundPeriod() external pure returns (uint256);
 }

src/libs/LibMarketplace.sol

@@ -181,6 +181,10 @@ library LibMarketplace {
         }
     }
 
+    //*//////////////////////////////////////////////////////////////////////////
+    //                              ADMIN FUNCTIONS
+    //////////////////////////////////////////////////////////////////////////*//
+
     function _setFeeTokenAddresses(FeeType[] calldata _feeTypes, address[] calldata _tokenAddresses) internal {
         uint256 feeTypesLength = _feeTypes.length;
         if (feeTypesLength != _tokenAddresses.length && feeTypesLength > 0) revert InvalidFeeConfig();
@@ -191,6 +195,12 @@ library LibMarketplace {
         }
     }
 
+    function _setHostItFeeBps(uint16 _hostItFeePercentage) internal {
+        if (_hostItFeePercentage > HOSTIT_FEE_BPS) revert InvalidHostItFeeBps();
+        _marketplaceStorage().hostItFeeBps = _hostItFeePercentage;
+        emit HostItFeeBpsSet(_hostItFeePercentage);
+    }
+
     //*//////////////////////////////////////////////////////////////////////////
     //                               VIEW FUNCTIONS
     //////////////////////////////////////////////////////////////////////////*//

src/libs/errors/MarketplaceErrors.sol

@@ -20,3 +20,4 @@ error TicketPurchaseFailed(FeeType, uint256);
 error TicketAccountingMismatch();
 error TicketUnpauseFailed();
 error CreateERC6551AccountFailed();
+error InvalidHostItFeeBps();

src/libs/logs/MarketplaceLogs.sol

@@ -5,6 +5,8 @@ import {FeeType} from "@ticket-storage/MarketplaceStorage.sol";
 
 event TicketFeeSet(uint64 indexed ticketId, FeeType indexed feeType, uint256 fee);
 
+event HostItFeeBpsSet(uint16 indexed hostItFeeBps);
+
 event TicketFeeAddressSet(FeeType indexed feeType, address indexed token);
 
 event TicketMinted(uint64 indexed ticketId, FeeType indexed feeType, uint256 fee, uint40 tokenId);