import { useReadContract } from "wagmi";

import { abi as UniswapV2Factory } from "../../abi/UniswapV2Factory.json";
import { UNISWAP_V2_FACTORY } from "../../constants/addresses";

export const useUniswapV2Pair = (chainId, factoryAddress, token0, token1) => {
    const t0 = token0 > token1 ? token0 : token1;
    const t1 = token0 > token1 ? token1 : token0;
    const { data, refetch } = useReadContract({
        abi: UniswapV2Factory,
        address: factoryAddress,
        functionName: "getPair",
        args: [token0, token1],
        scopeKey: `getPair-${t0}-${t1}-${chainId}`,
        chainId: chainId,
    });

    const pairAddress = data ? data : "";

    return { pairAddress, refetch };
}