console.clear();

require("dotenv").config();

const {

AccountId,

PrivateKey,

Client,

TokenCreateTransaction,

TokenUpdateTransaction,

TokenType,

Hbar,

TokenSupplyType,

AccountCreateTransaction,

KeyList

} = require("@hashgraph/sdk");

// Configure accounts and client, and generate needed keys

const operatorId = AccountId.fromString(process.env.OPERATOR_ID);

const operatorKey = PrivateKey.fromString(process.env.OPERATOR_PVKEY);

const client = Client.forTestnet().setOperator(operatorId, operatorKey);

client.setDefaultMaxTransactionFee(new Hbar(100));

const adminKey = PrivateKey.generateED25519();

const randomKey = PrivateKey.generateED25519();

const treasuryKey = PrivateKey.generateED25519();

const newSupplyKey = PrivateKey.generateED25519();

async function main() {

// Create accounts

console.log(`- Creating accounts...`);

const [adminAccStatus, adminId] = await accountCreatorFcn(adminKey, 3);

console.log(`- Created admin account ${adminId} that has a balance of 3ℏ`);

const [randomAccStatus, randomId] = await accountCreatorFcn(randomKey, 3);

console.log(`- Created random account ${randomId} that has a balance of 3ℏ`);

const [treasuryAccStatus, treasuryId] = await accountCreatorFcn(treasuryKey, 3);

console.log(`- Created random account ${treasuryId} that has a balance of 3ℏ`);

// Create NFT

console.log(`\n- Creating NFT (with all token keys set)`);

let nftCreate = await new TokenCreateTransaction()

.setTokenName("Fall Collection")

.setTokenSymbol("LEAF")

.setTokenType(TokenType.NonFungibleUnique)

.setDecimals(0)

.setInitialSupply(0)

.setTreasuryAccountId(treasuryId)

.setSupplyType(TokenSupplyType.Finite)

.setMaxSupply(5)

// Set keys

.setAdminKey(adminKey)

.setFreezeKey(randomKey)

.setKycKey(randomKey)

.setWipeKey(randomKey)

.setSupplyKey(randomKey)

.setPauseKey(randomKey)

.setFeeScheduleKey(randomKey)

.freezeWith(client)

.sign(treasuryKey);

let nftCreateTxSign = await nftCreate.sign(adminKey);

let nftCreateSubmit = await nftCreateTxSign.execute(client);

let nftCreateRx = await nftCreateSubmit.getReceipt(client);

let tokenId = nftCreateRx.tokenId;

console.log(`- Created NFT with Token ID: ${tokenId}`);

// Update supply key from token using token update transaction (not possible to remove by setting to "null")

console.log('\n- Updating token with new supply key');

let tokenUpdateTx = await new TokenUpdateTransaction()

.setTokenId(tokenId)

.setSupplyKey(newSupplyKey) // if you set this to null, nothing happens

.freezeWith(client)

.sign(adminKey);

let tokenUpdateTxSubmit = await tokenUpdateTx.execute(client);

let tokenUpdateTxRx = await tokenUpdateTxSubmit.getReceipt(client);

console.log('- Updated supply key');

client.close();

// ACCOUNT CREATOR FUNCTION ==========================================

async function accountCreatorFcn(pvKey, iBal) {

const response = await new AccountCreateTransaction()

.setInitialBalance(new Hbar(iBal))

.setKey(pvKey.publicKey)

.execute(client);

const receipt = await response.getReceipt(client);

return [receipt.status, receipt.accountId];

}

}

main();