function getPool(
    address tokenA,
    address tokenB,
    uint24 fee
) external view returns (address pool);

[
  "function getPool(address tokenA, address tokenB, uint24 fee) view returns (address pool)"
]

function slot0() external view returns (
    uint160 sqrtPriceX96,
    int24 tick,
    uint16 observationIndex,
    uint16 observationCardinality,
    uint16 observationCardinalityNext,
    uint8 feeProtocol,
    bool unlocked
);

function liquidity() external view returns (uint128);

function fee() external view returns (uint24);
function tickSpacing() external view returns (int24);

function token0() external view returns (address);
function token1() external view returns (address);

[
  "function slot0() view returns (uint160 sqrtPriceX96, int24 tick, uint16 observationIndex, uint16 observationCardinality, uint16 observationCardinalityNext, uint8 feeProtocol, bool unlocked)",
  "function liquidity() view returns (uint128)",
  "function fee() view returns (uint24)",
  "function tickSpacing() view returns (int24)",
  "function token0() view returns (address)",
  "function token1() view returns (address)"
]

const FACTORY_ABI = [
  "function getPool(address, address, uint24) view returns (address)"
];
const POOL_ABI = [
  "function slot0() view returns (uint160, int24, uint16, uint16, uint16, uint8, bool)",
  "function token0() view returns (address)",
  "function token1() view returns (address)",
  "function fee() view returns (uint24)",
  "function liquidity() view returns (uint128)"
];

const factory = new ethers.Contract(V3_FACTORY, FACTORY_ABI, provider);
const poolAddress = await factory.getPool(tokenA, tokenB, 3000); // 0.3% 费率

if (poolAddress === ethers.ZeroAddress) {
  console.log("Pool does not exist for this fee tier");
} else {
  const pool = new ethers.Contract(poolAddress, POOL_ABI, provider);
  const [sqrtPriceX96, tick] = await pool.slot0();

  // 将 sqrtPriceX96 转换为价格
  const price = (Number(sqrtPriceX96) / 2 ** 96) ** 2;
  console.log(`Current price (token1/token0): ${price}`);
  console.log(`Current tick: ${tick}`);
}

// sqrtPriceX96 → 价格（token1 每 token0）
const price = (sqrtPriceX96 / 2n ** 96n) ** 2n; // BigInt 写法

// 针对不同代币精度的调整
const adjustedPrice = price * 10n ** BigInt(decimals0 - decimals1);