added get Event price component

app/page.tsx

@@ -1,6 +1,7 @@
 import Image from 'next/image';
 import EventCounter from '@/components/sc/eventCounter';
 import CreateEvent from '@/components/sc/createEvent';
+import GetEventPrice from '@/components/sc/getEventPrice';
 
 export default function Home() {
   return (
@@ -29,6 +30,8 @@ export default function Home() {
 
         <CreateEvent />
 
+        <GetEventPrice />
+
         <div className="flex gap-4 items-center flex-col sm:flex-row">
           <a
             className="rounded-full border border-solid border-transparent transition-colors flex items-center justify-center bg-foreground text-background gap-2 hover:bg-[#383838] dark:hover:bg-[#ccc] text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5"

components/sc/getEventPrice.tsx

@@ -0,0 +1,44 @@
+'use client';
+
+import React, { useState } from 'react';
+import { ethers } from 'ethers';
+import { getContract } from '@/lib/ethers'; // Adjust the path to your ethers helper
+
+const GetEventPrice = () => {
+  const [eventId, setEventId] = useState<number | null>(null);
+  const [priceInFlr, setPriceInFlr] = useState<string | null>(null);
+
+  const handleGetPrice = async () => {
+    try {
+      if (eventId === null) return;
+
+      const contract = getContract();
+      const flrPrice = await contract.getEventPriceFlare(eventId);
+      setPriceInFlr(ethers.utils.formatEther(flrPrice.toString()));
+    } catch (error) {
+      console.error('Error fetching event price:', error);
+    }
+  };
+
+  return (
+    <div className="p-4">
+      <h2>Get Event Price in FLR</h2>
+      <input
+        type="number"
+        placeholder="Enter Event ID"
+        value={eventId !== null ? eventId : ''}
+        onChange={(e) => setEventId(Number(e.target.value))}
+        className="border p-2 mb-2"
+      />
+      <button
+        onClick={handleGetPrice}
+        className="bg-blue-500 text-white px-4 py-2 rounded"
+      >
+        Get Price
+      </button>
+      {priceInFlr && <p>Event Price in FLR: {priceInFlr}</p>}
+    </div>
+  );
+};
+
+export default GetEventPrice;

contracts/EventManager.sol

@@ -2,14 +2,30 @@
 
 pragma solidity >=0.8.2 <0.9.0;
 
+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";
+
 contract EventManager {
     
+    TestFtsoV2Interface internal ftsoV2;
+    bytes21[] public feedIds = [
+        bytes21(0x01464c522f55534400000000000000000000000000) // FLR/USD
+        // bytes21(0x014254432f55534400000000000000000000000000), // BTC/USD
+        // bytes21(0x014554482f55534400000000000000000000000000) // ETH/USD
+    ];
+
+    constructor() {
+        /* THIS IS A TEST METHOD, in production use: ftsoV2 = ContractRegistry.getFtsoV2(); */
+        ftsoV2 = ContractRegistry.getTestFtsoV2();
+    }
+
     struct Event {
         string name;
         string description;
         uint256 capacity;
         uint256 ticketsSold;
-        uint256 ticketPrice; // in USD
+        uint256 ticketPrice; // in USD cents
         uint256 eventDate;
         string[] images; // array of image URLs
         uint256[] tickets;
@@ -32,8 +48,41 @@ contract EventManager {
     uint256 public eventCounter;
     uint256 public ticketCounter;
 
-    function getTicketPrice() public view returns (uint256) {
-        // TODO: to be implemented
+    function getFtsoV2CurrentFeedValues() public view returns (
+        uint256[] memory _feedValues,
+        int8[] memory _decimals,
+        uint64 _timestamp
+    ) {
+        return ftsoV2.getFeedsById(feedIds);
+    }
+
+    function getFlareFeed() public view returns (uint256 _feedValue, int8 _decimals, uint64 _timestamp) {
+        uint256[] memory feedValues;
+        int8[] memory decimals;
+        uint64 timestamp;
+        (feedValues, decimals, timestamp) = ftsoV2.getFeedsById(feedIds);
+        return (feedValues[0], decimals[0], timestamp);
+    }
+
+    function centsToFlare(uint256 _cents) public view returns (uint256 _flr) {
+        uint256 feedValue;
+        int8 decimals;
+        (feedValue, decimals, ) = getFlareFeed();
+        return _cents * power(10, decimals) * 1 ether / 100 / feedValue;
+    }
+
+    function power(uint base, int8 exponent) public pure returns (uint) {
+        require(exponent >= 0, "Exponent must be non-negative");
+        uint result = 1;
+        for (int8 i = 0; i < exponent; i++) {
+            result *= base;
+        }
+        return result;
+    }
+
+    function getEventPriceFlare(uint256 _eventId) public view returns (uint256 _flr) {
+        require(_eventId < eventCounter, "Invalid event ID");
+        return centsToFlare(events[_eventId].ticketPrice);
     }
 
     function createEvent(string memory _name, string memory _description, uint256 _capacity, uint256 _ticketPrice, uint256 _eventDate, string[] memory _images) public {
@@ -42,10 +91,12 @@ contract EventManager {
     }
 
     function getEventImages(uint256 _eventId) public view returns (string[] memory) {
+        require(_eventId < eventCounter, "Invalid event ID");
         return events[_eventId].images;
     }
 
     function getEventTickets(uint256 _eventId) public view returns (uint256[] memory) {
+        require(_eventId < eventCounter, "Invalid event ID");
         return events[_eventId].tickets;
     }
 

lib/ethers.ts

@@ -2,7 +2,7 @@ import { ethers } from 'ethers';
 
 const FLARE_TESTNET_RPC_URL = 'https://coston2.enosys.global/ext/C/rpc';
 
-const CONTRACT_ADDRESS = '0xc84C08D4BAd1f43FF053ba590d990E495A64FCd8';
+const CONTRACT_ADDRESS = '0x0B236423274D36C32fb2362cc177756a21A025A3';
 
 export function getFlareProvider() {
   const flareRpcUrl = FLARE_TESTNET_RPC_URL;
@@ -106,6 +106,30 @@ export function getContract() {
       stateMutability: 'nonpayable',
       type: 'function',
     },
+    {
+      inputs: [],
+      stateMutability: 'nonpayable',
+      type: 'constructor',
+    },
+    {
+      inputs: [
+        {
+          internalType: 'uint256',
+          name: '_cents',
+          type: 'uint256',
+        },
+      ],
+      name: 'centsToFlare',
+      outputs: [
+        {
+          internalType: 'uint256',
+          name: '_flr',
+          type: 'uint256',
+        },
+      ],
+      stateMutability: 'view',
+      type: 'function',
+    },
     {
       inputs: [],
       name: 'eventCounter',
@@ -168,6 +192,25 @@ export function getContract() {
       stateMutability: 'view',
       type: 'function',
     },
+    {
+      inputs: [
+        {
+          internalType: 'uint256',
+          name: '',
+          type: 'uint256',
+        },
+      ],
+      name: 'feedIds',
+      outputs: [
+        {
+          internalType: 'bytes21',
+          name: '',
+          type: 'bytes21',
+        },
+      ],
+      stateMutability: 'view',
+      type: 'function',
+    },
     {
       inputs: [
         {
@@ -187,6 +230,25 @@ export function getContract() {
       stateMutability: 'view',
       type: 'function',
     },
+    {
+      inputs: [
+        {
+          internalType: 'uint256',
+          name: '_eventId',
+          type: 'uint256',
+        },
+      ],
+      name: 'getEventPriceFlare',
+      outputs: [
+        {
+          internalType: 'uint256',
+          name: '_flr',
+          type: 'uint256',
+        },
+      ],
+      stateMutability: 'view',
+      type: 'function',
+    },
     {
       inputs: [
         {
@@ -208,7 +270,64 @@ export function getContract() {
     },
     {
       inputs: [],
-      name: 'getTicketPrice',
+      name: 'getFlareFeed',
+      outputs: [
+        {
+          internalType: 'uint256',
+          name: '_feedValue',
+          type: 'uint256',
+        },
+        {
+          internalType: 'int8',
+          name: '_decimals',
+          type: 'int8',
+        },
+        {
+          internalType: 'uint64',
+          name: '_timestamp',
+          type: 'uint64',
+        },
+      ],
+      stateMutability: 'view',
+      type: 'function',
+    },
+    {
+      inputs: [],
+      name: 'getFtsoV2CurrentFeedValues',
+      outputs: [
+        {
+          internalType: 'uint256[]',
+          name: '_feedValues',
+          type: 'uint256[]',
+        },
+        {
+          internalType: 'int8[]',
+          name: '_decimals',
+          type: 'int8[]',
+        },
+        {
+          internalType: 'uint64',
+          name: '_timestamp',
+          type: 'uint64',
+        },
+      ],
+      stateMutability: 'view',
+      type: 'function',
+    },
+    {
+      inputs: [
+        {
+          internalType: 'uint256',
+          name: 'base',
+          type: 'uint256',
+        },
+        {
+          internalType: 'int8',
+          name: 'exponent',
+          type: 'int8',
+        },
+      ],
+      name: 'power',
       outputs: [
         {
           internalType: 'uint256',
@@ -216,7 +335,7 @@ export function getContract() {
           type: 'uint256',
         },
       ],
-      stateMutability: 'view',
+      stateMutability: 'pure',
       type: 'function',
     },
     {