import { playgroundHelper } from "../../helpers/helpers";

import {
  actionCreators,
  createTransaction,
} from "@near-js/transactions";
import { baseDecode } from "@near-js/utils";
import { Account } from "@near-js/accounts";


const BRIDGE_AMOUNT = "500000000"; // 6 decimals
const TOKEN_ID = "arb-0xaf88d065e77c8cc2239327c5edb3a432268e5831.omft.near"; // NEAR intents token ID (without "nep141:")
const RECIPIENT = "0x24db64a117db9af57bb33a0f51018b67a529b831"; // Must match policy memo restriction

console.log("Initiating token bridge from NEAR to Arb");

// Get current block hash and vault account info
const block = await playgroundHelper.provider.block({
  finality: "near-final",
});

const derivedAccount = new Account(
  playgroundHelper.vaultContractId,
  playgroundHelper.provider
);

const allKeys = await derivedAccount.getAccessKeyList();

const matchingKey = allKeys.keys.find(
  (e) => e.public_key === playgroundHelper.vaultPublicKey.toString()
);

if (!matchingKey) {
  throw new Error("Key not found");
}

// Create NEAR transaction for ft_withdraw
const transaction = createTransaction(
  playgroundHelper.vaultContractId,
  playgroundHelper.vaultPublicKey,
  "intents.near", // receiver_id for ft_withdraw
  BigInt(matchingKey.access_key.nonce) + 1n,
  [
    actionCreators.functionCall(
      "ft_withdraw",
      {
        token: TOKEN_ID,
        receiver_id: TOKEN_ID,
        amount: BRIDGE_AMOUNT,
        memo: `WITHDRAW_TO:${RECIPIENT}`
      },
      30000000000000n, // 30 TGas
      1n // 1 yoctoNEAR
    ),
  ],
  baseDecode(block.header.hash)
);

// Encode transaction as base64
const encodedTx = Buffer.from(transaction.encode()).toString("base64");

// Execute bridge transaction using the vault's NEAR Intents ft_withdraw policy
const bridgeResult = await playgroundHelper.account.callFunction({
  contractId: playgroundHelper.vaultContractId,
  methodName: "propose_execution",
  args: {
    policy_id: "near_intents_ft_withdraw_arb",
    function_args: encodedTx,
    deadline_hours: 1
  },
  gas: 50000000000000n, // 50 TGas
});

console.log("Bridge transaction proposed:", bridgeResult);

console.log(`Bridging ${BRIDGE_AMOUNT} USDC to Arbitrum address ${RECIPIENT}`);