feat(contracts): 🎸update contract so its possible to control minters

contracts/artifacts/contracts/NFTContract.sol/NFTContract.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../build-info/fdd9c5e1222ec4644fba7d05a6b0a6ea.json"
+  "buildInfo": "../../build-info/e0d27f44f97abb5534e508a66a390154.json"
 }

contracts/artifacts/contracts/utils/ExpiryHelper.sol/ExpiryHelper.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../build-info/fdd9c5e1222ec4644fba7d05a6b0a6ea.json"
+  "buildInfo": "../../../build-info/e0d27f44f97abb5534e508a66a390154.json"
 }

contracts/artifacts/contracts/utils/HederaResponseCodes.sol/HederaResponseCodes.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../build-info/fdd9c5e1222ec4644fba7d05a6b0a6ea.json"
+  "buildInfo": "../../../build-info/e0d27f44f97abb5534e508a66a390154.json"
 }

contracts/artifacts/contracts/utils/HederaTokenService.sol/HederaTokenService.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../build-info/fdd9c5e1222ec4644fba7d05a6b0a6ea.json"
+  "buildInfo": "../../../build-info/e0d27f44f97abb5534e508a66a390154.json"
 }

contracts/artifacts/contracts/utils/IHederaTokenService.sol/IHederaTokenService.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../build-info/fdd9c5e1222ec4644fba7d05a6b0a6ea.json"
+  "buildInfo": "../../../build-info/e0d27f44f97abb5534e508a66a390154.json"
 }

contracts/artifacts/contracts/utils/KeyHelper.sol/Bits.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../build-info/fdd9c5e1222ec4644fba7d05a6b0a6ea.json"
+  "buildInfo": "../../../build-info/e0d27f44f97abb5534e508a66a390154.json"
 }

contracts/artifacts/contracts/utils/KeyHelper.sol/KeyHelper.dbg.json

@@ -1,4 +1,4 @@
 {
   "_format": "hh-sol-dbg-1",
-  "buildInfo": "../../../build-info/fdd9c5e1222ec4644fba7d05a6b0a6ea.json"
+  "buildInfo": "../../../build-info/e0d27f44f97abb5534e508a66a390154.json"
 }

contracts/contracts/NFTContract.sol

@@ -10,20 +10,55 @@ import "./utils/KeyHelper.sol";
 contract NFTContract is ExpiryHelper, KeyHelper, HederaTokenService {
     address public owner;
 
+    // Mapping to track authorized minters
+    mapping(address => bool) public authorizedMinters;
+
     // Mapping to track which wallet can claim which NFT serial number
     mapping(int64 => address) public nftClaimRights;
     // Mapping to track if an NFT has been claimed
     mapping(int64 => bool) public claimed;
 
+    // Events
+    event MinterAdded(address indexed minter);
+    event MinterRemoved(address indexed minter);
+
     constructor() {
         owner = msg.sender;
+        // Make the owner an authorized minter by default
+        authorizedMinters[msg.sender] = true;
     }
 
     modifier onlyOwner() {
         require(msg.sender == owner, "Only owner can call this function");
         _;
     }
 
+    modifier onlyMinter() {
+        require(authorizedMinters[msg.sender], "Only authorized minters can call this function");
+        _;
+    }
+
+    // Function to add a new minter
+    function addMinter(address minter) external onlyOwner {
+        require(minter != address(0), "Invalid minter address");
+        require(!authorizedMinters[minter], "Address is already a minter");
+        authorizedMinters[minter] = true;
+        emit MinterAdded(minter);
+    }
+
+    // Function to remove a minter
+    function removeMinter(address minter) external onlyOwner {
+        require(minter != owner, "Cannot remove owner as minter");
+        require(authorizedMinters[minter], "Address is not a minter");
+        authorizedMinters[minter] = false;
+        emit MinterRemoved(minter);
+    }
+
+    // Function to check if an address is an authorized minter
+    function isMinter(address account) external view returns (bool) {
+        return authorizedMinters[account];
+    }
+
     function createNft(
         string memory name,
         string memory symbol,
@@ -57,7 +92,7 @@ contract NFTContract is ExpiryHelper, KeyHelper, HederaTokenService {
         address token,
         bytes[] memory metadata,
         address allowedClaimer
-    ) external onlyOwner returns(int64) {
+    ) external onlyMinter returns(int64) {
         (int response, , int64[] memory serial) = HederaTokenService.mintToken(token, 0, metadata);
 
         if(response != HederaResponseCodes.SUCCESS){

contracts/scripts/minter/add.ts

@@ -0,0 +1,57 @@
+import {
+  AccountId,
+  ContractExecuteTransaction,
+  ContractFunctionParameters,
+  ContractId,
+  Hbar,
+} from "@hashgraph/sdk";
+import { clientSetup } from "../client";
+
+// Get command line arguments
+const [contractId, minterId] = process.argv.slice(2);
+
+if (!contractId || !minterId) {
+  console.error("Missing required arguments");
+  console.error("Usage: npx ts-node addMinter.ts <contractId> <minterId>");
+  console.error("Example: npx ts-node addMinter.ts 0.0.123456 0.0.789101");
+  process.exit(1);
+}
+
+const addMinter = async () => {
+  try {
+    // Create client and set operator
+    const client = clientSetup();
+
+    console.log("\n----- Adding New Minter -----");
+    console.log(`Contract ID: ${contractId}`);
+    console.log(`Minter ID: ${minterId}`);
+
+    // Convert IDs to correct format
+    const contractIdObj = ContractId.fromString(contractId);
+    const minterIdObj = AccountId.fromString(minterId);
+    const minterAddress = minterIdObj.toSolidityAddress();
+
+    // Create and execute the transaction
+    const addMinterTx = new ContractExecuteTransaction()
+      .setContractId(contractIdObj)
+      .setGas(1000000)
+      .setMaxTransactionFee(new Hbar(20))
+      .setFunction(
+        "addMinter",
+        new ContractFunctionParameters().addAddress(minterAddress),
+      );
+
+    const txResponse = await addMinterTx.execute(client);
+    const receipt = await txResponse.getReceipt(client);
+
+    console.log("\nMinter added successfully!");
+    console.log("Transaction ID:", txResponse.transactionId.toString());
+
+    client.close();
+  } catch (error) {
+    console.error("Error adding minter:", error);
+    throw error;
+  }
+};
+
+addMinter();

contracts/scripts/minter/remove.ts

@@ -0,0 +1,56 @@
+import {
+  AccountId,
+  ContractExecuteTransaction,
+  ContractFunctionParameters,
+  ContractId,
+  Hbar,
+} from "@hashgraph/sdk";
+import { clientSetup } from "../client";
+
+// Get command line arguments
+const [contractId, minterId] = process.argv.slice(2);
+
+if (!contractId || !minterId) {
+  console.error("Missing required arguments");
+  console.error("Usage: npx ts-node removeMinter.ts <contractId> <minterId>");
+  console.error("Example: npx ts-node removeMinter.ts 0.0.123456 0.0.789101");
+  process.exit(1);
+}
+
+const removeMinter = async () => {
+  try {
+    const client = clientSetup();
+
+    console.log("\n----- Removing Minter -----");
+    console.log(`Contract ID: ${contractId}`);
+    console.log(`Minter ID: ${minterId}`);
+
+    // Convert IDs to correct format
+    const contractIdObj = ContractId.fromString(contractId);
+    const minterIdObj = AccountId.fromString(minterId);
+    const minterAddress = minterIdObj.toSolidityAddress();
+
+    // Create and execute the transaction
+    const removeMinterTx = new ContractExecuteTransaction()
+      .setContractId(contractIdObj)
+      .setGas(1000000)
+      .setMaxTransactionFee(new Hbar(20))
+      .setFunction(
+        "removeMinter",
+        new ContractFunctionParameters().addAddress(minterAddress),
+      );
+
+    const txResponse = await removeMinterTx.execute(client);
+    const receipt = await txResponse.getReceipt(client);
+
+    console.log("\nMinter removed successfully!");
+    console.log("Transaction ID:", txResponse.transactionId.toString());
+
+    client.close();
+  } catch (error) {
+    console.error("Error removing minter:", error);
+    throw error;
+  }
+};
+
+removeMinter();