Update EventManager.sol

contracts/EventManager.sol

@@ -2,11 +2,12 @@
 
 pragma solidity >=0.8.2 <0.9.0;
 
-import {ContractRegistry} from '@flarenetwork/flare-periphery-contracts/coston2/ContractRegistry.sol';
+import {ContractRegistry} from "@flarenetwork/flare-periphery-contracts/coston2/ContractRegistry.sol";
 /* THIS IS A TEST IMPORT, in production use: import {FtsoV2Interface} from "@flarenetwork/flare-periphery-contracts/coston2/FtsoV2Interface.sol"; */
-import {TestFtsoV2Interface} from '@flarenetwork/flare-periphery-contracts/coston2/TestFtsoV2Interface.sol';
+import {TestFtsoV2Interface} from "@flarenetwork/flare-periphery-contracts/coston2/TestFtsoV2Interface.sol";
 
 contract EventManager {
+    
     TestFtsoV2Interface internal ftsoV2;
     bytes21[] public feedIds = [
         bytes21(0x01464c522f55534400000000000000000000000000) // FLR/USD
@@ -38,18 +39,9 @@ contract EventManager {
     }
 
     event EventCreated(uint256 eventId, string name, uint256 eventDate);
-  event TicketPurchased(
+    event TicketPurchased(uint256 ticketId, uint256 eventId, address buyer, uint256 price);
-    uint256 ticketId,
-    uint256 eventId,
-    address buyer,
-    uint256 price
-  );
     event TicketTransferred(uint256 ticketId, address from, address to);
-  event TicketTransferApproved(
+    event TicketTransferApproved(uint256 ticketId, address owner, address trustee);
-    uint256 ticketId,
-    address owner,
-    address trustee
-  );
 
     mapping(uint256 => Event) public events;
     mapping(uint256 => Ticket) public tickets;
@@ -61,23 +53,15 @@ contract EventManager {
     uint256 public eventCounter;
     uint256 public ticketCounter;
 
-  function getFtsoV2CurrentFeedValues()
+    function getFtsoV2CurrentFeedValues() public view returns (
-    public
-    view
-    returns (
         uint256[] memory _feedValues,
         int8[] memory _decimals,
         uint64 _timestamp
-    )
+    ) {
-  {
         return ftsoV2.getFeedsById(feedIds);
     }
 
-  function getFlareFeed()
+    function getFlareFeed() public view returns (uint256 _feedValue, int8 _decimals, uint64 _timestamp) {
-    public
-    view
-    returns (uint256 _feedValue, int8 _decimals, uint64 _timestamp)
-  {
         uint256[] memory feedValues;
         int8[] memory decimals;
         uint64 timestamp;
@@ -89,11 +73,11 @@ contract EventManager {
         uint256 feedValue;
         int8 decimals;
         (feedValue, decimals, ) = getFlareFeed();
-    return (_cents * power(10, decimals) * 1 ether) / 100 / feedValue;
+        return _cents * power(10, decimals) * 1 ether / 100 / feedValue;
     }
 
     function power(uint base, int8 exponent) private pure returns (uint) {
-    require(exponent >= 0, 'Exponent must be non-negative');
+        require(exponent >= 0, "Exponent must be non-negative");
         uint result = 1;
         for (int8 i = 0; i < exponent; i++) {
             result *= base;
@@ -101,70 +85,39 @@ contract EventManager {
         return result;
     }
 
-  function getEventPriceFlare(
+    function getEventPriceFlare(uint256 _eventId) public view returns (uint256 _flr) {
-    uint256 _eventId
+        require(_eventId < eventCounter, "Invalid event ID");
-  ) public view returns (uint256 _flr) {
-    require(_eventId < eventCounter, 'Invalid event ID');
         return centsToFlare(events[_eventId].ticketPrice);
     }
 
-  function createEvent(
+    function createEvent(string memory _name, string memory _description, uint256 _capacity, uint256 _ticketPrice, uint256 _eventDate, string[] memory _images) public returns (uint256 _eventId) {
-    string memory _name,
+        events[eventCounter] = Event(_name, _description, _capacity, 0, _ticketPrice, _eventDate, _images, new uint256[](0), payable(msg.sender));
-    string memory _description,
-    uint256 _capacity,
-    uint256 _ticketPrice,
-    uint256 _eventDate,
-    string[] memory _images
-  ) public returns (uint256 _eventId) {
-    events[eventCounter] = Event(
-      _name,
-      _description,
-      _capacity,
-      0,
-      _ticketPrice,
-      _eventDate,
-      _images,
-      new uint256[](0),
-      payable(msg.sender)
-    );
         eventCounter++;
         emit EventCreated(eventCounter - 1, _name, _eventDate);
         return eventCounter - 1;
     }
 
-  function getEventImages(
+    function getEventImages(uint256 _eventId) public view returns (string[] memory) {
-    uint256 _eventId
+        require(_eventId < eventCounter, "Invalid event ID");
-  ) public view returns (string[] memory) {
-    require(_eventId < eventCounter, 'Invalid event ID');
         return events[_eventId].images;
     }
 
-  function getEventTickets(
+    function getEventTickets(uint256 _eventId) public view returns (uint256[] memory) {
-    uint256 _eventId
+        require(_eventId < eventCounter, "Invalid event ID");
-  ) public view returns (uint256[] memory) {
-    require(_eventId < eventCounter, 'Invalid event ID');
         return events[_eventId].tickets;
     }
 
-  function buyTicket(
+    function buyTicket(uint256 _eventId) public payable returns (uint256 _ticketId) {
-    uint256 _eventId
+        require(_eventId < eventCounter, "Invalid event ID");
-  ) public payable returns (uint256 _ticketId) {
+        require(events[_eventId].eventDate > block.timestamp, "Event has already passed");
-    require(_eventId < eventCounter, 'Invalid event ID');
+        require(events[_eventId].tickets.length < events[_eventId].capacity, "Event is full");
-    require(
-      events[_eventId].eventDate > block.timestamp,
-      'Event has already passed'
-    );
-    require(
-      events[_eventId].tickets.length < events[_eventId].capacity,
-      'Event is full'
-    );
 
         uint256 ticketCost = getEventPriceFlare(_eventId); // Get ticket price in FLR
-    require(msg.value >= ticketCost, 'Insufficient value provided'); // Ensure user has paid >= ticket price
+        require(msg.value >= ticketCost, "Insufficient value provided"); // Ensure user has paid >= ticket price
         if (msg.value > ticketCost) {
             // Pay any excess the user paid
-      (bool sentExcess, ) = msg.sender.call{value: msg.value - ticketCost}('');
+            (bool sentExcess, ) = msg.sender.call{value: msg.value - ticketCost}("");
-      require(sentExcess, 'Failed to send FLR excess back to buyer');
+            require(sentExcess, "Failed to send FLR excess back to buyer");
         }
 
         // Create new ticket
@@ -180,21 +133,16 @@ contract EventManager {
         events[_eventId].ticketsSold++;
 
         // Transfer FLR to event host
-    (bool sentToHost, ) = events[_eventId].eventHost.call{value: ticketCost}(
+        (bool sentToHost, ) = events[_eventId].eventHost.call{value: ticketCost}("");
-      ''
+        require(sentToHost, "Failed to send FLR to event host");
-    );
-    require(sentToHost, 'Failed to send FLR to event host');
 
         emit TicketPurchased(ticketCounter - 1, _eventId, msg.sender, ticketCost);
         return ticketCounter - 1;
     }
 
     function transferTicketForce(uint256 _ticketId, address _to) private {
-    require(_ticketId < ticketCounter, 'Invalid ticket ID');
+        require(_ticketId < ticketCounter, "Invalid ticket ID");
-    require(
+        require(events[tickets[_ticketId].eventId].eventDate > block.timestamp, "Event has already passed");
-      events[tickets[_ticketId].eventId].eventDate > block.timestamp,
-      'Event has already passed'
-    );
 
         address prevHolder = tickets[_ticketId].holder;
 
@@ -211,8 +159,8 @@ contract EventManager {
         require(found, "Ticket not found in sender's inventory");
 
         // Remove ticket from holder's array
-    for (; i < userTickets[prevHolder].length - 1; i++) {
+        for (; i < userTickets[prevHolder].length-1; i++) {
-      userTickets[prevHolder][i] = userTickets[prevHolder][i + 1];
+            userTickets[prevHolder][i] = userTickets[prevHolder][i+1];
         }
         userTickets[prevHolder].pop();
 
@@ -225,31 +173,23 @@ contract EventManager {
     }
 
     function approveTicket(uint256 _ticketId, address _to, bool _allowed) public {
-    require(_ticketId < ticketCounter, 'Invalid ticket ID');
+        require(_ticketId < ticketCounter, "Invalid ticket ID");
-    require(
+        require(tickets[_ticketId].holder == msg.sender, "You do not own this ticket");
-      tickets[_ticketId].holder == msg.sender,
-      'You do not own this ticket'
-    );
         ticketAllowance[_ticketId][_to] = _allowed;
 
         emit TicketTransferApproved(_ticketId, msg.sender, _to);
     }
 
     function transferTicketFrom(uint256 _ticketId, address _to) public {
-    require(
+        require(ticketAllowance[_ticketId][msg.sender], "You are not allowed to transfer this ticket");
-      ticketAllowance[_ticketId][msg.sender],
-      'You are not allowed to transfer this ticket'
-    );
         ticketAllowance[_ticketId][msg.sender] = false;
         transferTicketForce(_ticketId, _to);
     }
 
     function transferTicket(uint256 _ticketId, address _to) public {
-    require(_ticketId < ticketCounter, 'Invalid ticket ID');
+        require(_ticketId < ticketCounter, "Invalid ticket ID");
-    require(
+        require(tickets[_ticketId].holder == msg.sender, "You do not own this ticket");
-      tickets[_ticketId].holder == msg.sender,
-      'You do not own this ticket'
-    );
         transferTicketForce(_ticketId, _to);
     }
+
 }