Ichi Vaults

import { IchiVault, IchiVaultInfo } from '@hydrexfi/hydrex-sdk';

// Read all vault state in one batched call
const info: IchiVaultInfo = await IchiVault.getVaultInfo(readContracts);
// info.token0, token1, allowToken0, allowToken1,
//   deposit0Max, deposit1Max, totalSupply, total0, total1, fee

// Check whether deposits are paused
const paused: boolean = IchiVault.isDepositsPaused(info);

// Estimate minimum LP shares (fallback, no simulation)
const minShares: bigint = IchiVault.estimateDepositShares(
  depositAmountUSD,  // deposit value in USD
  vaultTVLUSD,       // total vault TVL in USD
  info.totalSupply,
  50,                // slippage in bps (floored at 500 bps)
);

// Estimate minimum token amounts for withdrawal
const { amount0, amount1 } = IchiVault.estimateWithdrawAmounts(
  sharesToBurn,
  info.total0,
  info.total1,
  info.totalSupply,
  50,
);

import {
  IchiVaultDepositGuard,
  ICHI_VAULT_DEPOSIT_GUARD_ADDRESSES,
  ICHI_VAULT_DEPLOYER_ADDRESSES,
  ChainId,
} from '@hydrexfi/hydrex-sdk';

// ERC20 deposit — approve Deposit Guard first
const { calldata, value } = IchiVaultDepositGuard.buildDepositCallParameters({
  vault: '0xVaultAddress',
  vaultDeployer: ICHI_VAULT_DEPLOYER_ADDRESSES[ChainId.Base],
  token: '0xDepositToken',
  amount: '1000000000000000000',
  minimumProceeds: minShares,
  recipient: '0xYourWallet',
});

// Native ETH deposit — no approval needed; include value as tx.value
const { calldata: ethCalldata, value: ethValue } =
  IchiVaultDepositGuard.buildNativeDepositCallParameters({
    vault: '0xVaultAddress',
    vaultDeployer: ICHI_VAULT_DEPLOYER_ADDRESSES[ChainId.Base],
    amount: '1000000000000000000',
    minimumProceeds: minShares,
    recipient: '0xYourWallet',
  });

// ERC20 withdrawal — approve Deposit Guard for vault share token first
const { calldata } = IchiVaultDepositGuard.buildWithdrawCallParameters({
  vault: '0xVaultAddress',
  vaultDeployer: ICHI_VAULT_DEPLOYER_ADDRESSES[ChainId.Base],
  shares: '500000000000000000',
  recipient: '0xYourWallet',
  minAmount0: amount0,  // from estimateWithdrawAmounts
  minAmount1: amount1,
});

// Native ETH withdrawal — WETH auto-unwrapped to ETH
const { calldata: nativeCalldata } =
  IchiVaultDepositGuard.buildNativeWithdrawCallParameters({
    vault: '0xVaultAddress',
    vaultDeployer: ICHI_VAULT_DEPLOYER_ADDRESSES[ChainId.Base],
    shares: '500000000000000000',
    recipient: '0xYourWallet',
    minAmount0: amount0,
    minAmount1: amount1,
  });