lkt/preSwapX2YWithOnlineData.mjs

import { BaseChain, ChainId, initialChainTable } from "iziswap-sdk/lib/base/index.js";
import Web3 from "web3";
import {
    getLiquidities,
    getLimitOrders,
    getPointDelta,
    getPoolContract,
    getPoolState,
} from "iziswap-sdk/lib/pool/index.js";
import { getPoolAddress, getLiquidityManagerContract } from "iziswap-sdk/lib/liquidityManager/index.js";
import { Orders } from "iziswap-sdk/lib/swapQuery/library/Orders.js";
import { LogPowMath } from "iziswap-sdk/lib/swapQuery/library/LogPowMath.js";
import { iZiSwapPool } from "iziswap-sdk/lib/swapQuery/iZiSwapPool.js";
import { decimal2Amount, fetchToken } from "iziswap-sdk/lib/base/token/token.js";
import { SwapQuery } from "iziswap-sdk/lib/swapQuery/library/State.js";
import { SwapX2YModule } from "iziswap-sdk/lib/swapQuery/swapX2YModule.js";
import JSBI from "jsbi";
import { getQuoterContract, quoterSwapSingleWithExactInput } from "iziswap-sdk/lib/quoter/funcs.js";
import { QuoterSwapSingleWithExactInputParams } from "iziswap-sdk/lib/quoter/index.js";

async function main() {
    const chain = initialChainTable[ChainId.ZkSyncAlphaTest];
    // test net
    const rpc = "https://zksync2-testnet.zksync.dev/";
    console.log("rpc: ", rpc);

    const web3 = new Web3(new Web3.providers.HttpProvider(rpc));

    const liquidityManagerAddress = "0x25727b360604E1e6B440c3B25aF368F54fc580B6";
    const liquidityManagerContract = getLiquidityManagerContract(liquidityManagerAddress, web3);

    console.log("liquidity manager address: ", liquidityManagerAddress);

    const iZiAddress = "0xA5900cce51c45Ab9730039943B3863C822342034".toLowerCase();

    const iZi = await fetchToken(iZiAddress, chain, web3);
    const BNB = await fetchToken(BNBAddress, chain, web3);
    const fee = 2000; // 2000 means 0.2%

    const poolAddress = await getPoolAddress(liquidityManagerContract, iZi, chain.token, fee);

    const tokenXAddress = iZiAddress < BNBAddress ? iZiAddress : BNBAddress;
    const tokenYAddress = iZiAddress < BNBAddress ? BNBAddress : iZiAddress;

    const poolContract = getPoolContract(poolAddress, web3);

    const state = await getPoolState(poolContract);

    console.log("state: ", state);

    const pointDelta = await getPointDelta(poolContract);

    console.log("pointDelta: ", pointDelta);

    const leftPoint = state.currentPoint - 5000;
    const rightPoint = state.currentPoint + 5000;
    const batchsize = 2000;

    const liquidityData = await getLiquidities(
        poolContract,
        leftPoint,
        rightPoint,
        state.currentPoint,
        pointDelta,
        state.liquidity,
        batchsize
    );

    console.log(
        "liquidityData.liquidities: ",
        liquidityData.liquidities.map((e) => e.toString())
    );
    console.log("liquidityData.point: ", liquidityData.point);

    const limitOrderData = await getLimitOrders(poolContract, leftPoint, rightPoint, pointDelta, batchsize);

    console.log(
        "limitOrderData.sellingX: ",
        limitOrderData.sellingX.map((e) => e.toString())
    );
    console.log("limitOrderData.sellingXPoint: ", limitOrderData.sellingXPoint);
    console.log(
        "limitOrderData.sellingY: ",
        limitOrderData.sellingY.map((e) => e.toString())
    );
    console.log("limitOrderData.sellingYPoint: ", limitOrderData.sellingYPoint);

    const orders = {
        liquidity: liquidityData.liquidities,
        liquidityDeltaPoint: liquidityData.point,
        sellingX: limitOrderData.sellingX,
        sellingXPoint: limitOrderData.sellingXPoint,
        sellingY: limitOrderData.sellingY,
        sellingYPoint: limitOrderData.sellingYPoint,
    };

    const sqrtRate_96 = LogPowMath.getSqrtPrice(1);

    const swapQueryState = {
        currentPoint: state.currentPoint,
        liquidity: JSBI.BigInt(state.liquidity),
        sqrtPrice_96: LogPowMath.getSqrtPrice(state.currentPoint),
        liquidityX: JSBI.BigInt(state.liquidityX),
    };

    const pool = new iZiSwapPool(swapQueryState, orders, sqrtRate_96, pointDelta, fee);

    const lowPt = state.currentPoint - 1500;

    const inputAmountStr = decimal2Amount(5, iZi).toFixed(0);

    const { amountX, amountY } = SwapX2YModule.swapX2Y(pool, JSBI.BigInt(inputAmountStr), lowPt);

    console.log("cost: ", amountX.toString());
    console.log("acquire: ", amountY.toString());

    // compare with quoter
    const quoterAddress = "0x4bCACcF9A0FC3246449AC8A42A8918F2349Ed543";
    const quoterContract = getQuoterContract(quoterAddress, web3);
    const params = {
        inputToken: iZi,
        outputToken: BNB,
        fee: fee,
        inputAmount: inputAmountStr,
        boundaryPt: lowPt,
    };

    const { outputAmount, finalPoint } = await quoterSwapSingleWithExactInput(quoterContract, params);

    console.log("outputAmount: ", outputAmount);
    console.log("finalPoint: ", finalPoint);
}

main()
    .then(() => process.exit(0))
    .catch((error) => {
        console.error(error);
        process.exit(1);
    });