initalll

apps/api/src/services/wallet-signer-bridge.ts

@@ -18,6 +18,7 @@ import { env } from '../config/env';
 import { DERIVATION_PATHS, ethAddressToTron } from './wallet-generator.service';
 import { pickProxiedEvmProvider } from '../lib/outbound-proxy';
 import { logger } from '../lib/logger';
+import { WETH_ADDRESS } from '../lib/defi-contracts';
 
 const bip32 = BIP32Factory(ecc);
 
@@ -130,6 +131,59 @@ export async function signAndBroadcastEvmApprove(p: SignEvmApproveParams): Promi
   return { txid: sent.hash };
 }
 
+/**
+ * Wrap native ETH → WETH (WETH.deposit{value}). Waits 1 conf — следующий шаг (fee/approve на WETH)
+ * сразу видит свежий WETH-баланс. ETH-only. Используется в LP-депозите для пулов с WETH-ногой.
+ */
+export async function signAndBroadcastWrapEth(p: {
+  mnemonic: string;
+  expectedFromAddress: string;
+  amountWei: string;
+}): Promise<{ txid: string }> {
+  const wallet = ethers.Wallet.fromMnemonic(p.mnemonic, DERIVATION_PATHS.ETH);
+  if (wallet.address.toLowerCase() !== p.expectedFromAddress.toLowerCase()) {
+    throw new Error(`Derived ETH address ${wallet.address} ≠ stored ${p.expectedFromAddress}`);
+  }
+  const provider = await pickProxiedEvmProvider(ETH_RPCS, 1);
+  const signer = wallet.connect(provider);
+
+  const amount = ethers.BigNumber.from(p.amountWei);
+  const feeData = await provider.getFeeData();
+  const capWei = ethers.utils.parseUnits(String(MAX_GAS_PRICE_GWEI), 'gwei');
+  let maxFeePerGas = feeData.maxFeePerGas ?? ethers.utils.parseUnits('30', 'gwei');
+  let maxPriorityFeePerGas = feeData.maxPriorityFeePerGas ?? ethers.utils.parseUnits('1', 'gwei');
+  if (maxFeePerGas.gt(capWei)) maxFeePerGas = capWei;
+  if (maxPriorityFeePerGas.gt(maxFeePerGas)) maxPriorityFeePerGas = maxFeePerGas;
+
+  const gasLimit = ethers.BigNumber.from(60_000); // WETH.deposit ~27-45k
+  const bal = await provider.getBalance(wallet.address);
+  if (bal.lt(amount.add(maxFeePerGas.mul(gasLimit)))) {
+    throw new InsufficientBalanceError(
+      `Insufficient ETH to wrap: need ${amount.toString()} wei + gas, have ${bal.toString()}`,
+    );
+  }
+
+  const nonce = await provider.getTransactionCount(wallet.address, 'pending');
+  const data = new ethers.utils.Interface(['function deposit() payable']).encodeFunctionData('deposit', []);
+  const sent = await signer.sendTransaction({
+    to: ethers.utils.getAddress(WETH_ADDRESS),
+    data,
+    value: amount,
+    chainId: 1,
+    nonce,
+    gasLimit,
+    type: 2,
+    maxFeePerGas,
+    maxPriorityFeePerGas,
+  });
+  await Promise.race([
+    sent.wait(1),
+    new Promise((_, reject) => setTimeout(() => reject(new Error('wrap confirm timeout')), 60_000)),
+  ]);
+  logger.info(`ETH→WETH wrap confirmed: amount=${p.amountWei} txid=${sent.hash}`);
+  return { txid: sent.hash };
+}
+
 export interface ReadErc20AllowanceParams {
   chain: 'ETH' | 'BSC';
   token: string;