import { Client, Wallet } from "xrpl";
import { z } from "zod";
import { server } from "../../server/server.js";
import { getXrplClient } from "../../core/services/clients.js";
import { MAINNET_URL, TESTNET_URL } from "../../core/constants.js";
import { connectedWallet, isConnectedToTestnet } from "../../core/state.js";
// MPTokenIssuanceSet flags
const MPTokenIssuanceSetFlags = {
tfMPTLock: 0x0001, // Lock the MPT issuance (prevent further minting)
tfMPTUnlock: 0x0002, // Unlock the MPT issuance
};
server.tool(
"mpt-issuance-set",
"Modify the properties of an existing Multi-Purpose Token (MPT) issuance. Can lock/unlock the issuance or update holder authorization.",
{
fromSeed: z
.string()
.optional()
.describe(
"Optional seed of the wallet (must be the issuer). If not provided, the connected wallet will be used."
),
mptIssuanceID: z
.string()
.describe(
"The MPTokenIssuanceID of the MPT to modify (64-character hex string)."
),
holder: z
.string()
.optional()
.describe(
"Optional: The account address of the holder to authorize/unauthorize. Required when using the authorization flags."
),
lock: z
.boolean()
.optional()
.describe(
"If true, lock the MPT issuance (prevent further minting). If false, unlock it."
),
fee: z.string().optional().describe("Transaction fee in drops"),
useTestnet: z
.boolean()
.optional()
.describe(
"Whether to use the testnet (true) or mainnet (false)."
),
},
async ({
fromSeed,
mptIssuanceID,
holder,
lock,
fee,
useTestnet,
}) => {
let client: Client | null = null;
try {
const useTestnetNetwork =
useTestnet !== undefined ? useTestnet : isConnectedToTestnet;
client = await getXrplClient(useTestnetNetwork);
let wallet: Wallet;
if (fromSeed) {
wallet = Wallet.fromSeed(fromSeed);
} else if (connectedWallet) {
wallet = connectedWallet;
} else {
throw new Error(
"No wallet connected. Please connect first using connect-to-xrpl tool or provide a fromSeed."
);
}
// Build transaction
const tx: any = {
TransactionType: "MPTokenIssuanceSet",
Account: wallet.address,
MPTokenIssuanceID: mptIssuanceID,
};
// Set flags
if (lock !== undefined) {
tx.Flags = lock
? MPTokenIssuanceSetFlags.tfMPTLock
: MPTokenIssuanceSetFlags.tfMPTUnlock;
}
if (holder) {
tx.Holder = holder;
}
if (fee) tx.Fee = fee;
const prepared = await client.autofill(tx);
const signed = wallet.sign(prepared);
const result = await client.submitAndWait(signed.tx_blob);
let status = "unknown";
if (typeof result.result.meta !== "string" && result.result.meta) {
status =
result.result.meta.TransactionResult === "tesSUCCESS"
? "success"
: "failed";
}
return {
content: [
{
type: "text",
text: JSON.stringify(
{
status,
hash: result.result.hash,
mptIssuanceID,
holder: holder ?? null,
action: lock !== undefined
? (lock ? "locked" : "unlocked")
: "modified",
network: useTestnetNetwork
? TESTNET_URL
: MAINNET_URL,
networkType: useTestnetNetwork
? "testnet"
: "mainnet",
result: result.result,
},
null,
2
),
},
],
};
} catch (error) {
return {
content: [
{
type: "text",
text: `Error modifying MPT issuance: ${
error instanceof Error
? error.message
: String(error)
}`,
},
],
};
} finally {
if (client) {
await client.disconnect();
}
}
}
);
