rwa_contract/scripts/pancakeswap-info.ts

import { MockUSDT__factory, ControlledERC20__factory } from "../typechain-types"
import { IPancakeRouter02__factory, IPancakeFactory__factory, IPancakePair__factory } from "../typechain-types"
import { config as dotenvConfig } from "dotenv"
import { ethers } from "ethers"
import fs from "fs"

// BSC Testnet PancakeSwap V2 合约地址
const PANCAKE_ROUTER_ADDRESS = "0xD99D1c33F9fC3444f8101754aBC46c52416550D1"
const PANCAKE_FACTORY_ADDRESS = "0x6725F303b657a9451d8BA641348b6761A6CC7a17"
const WBNB_ADDRESS = "0xae13d989daC2f0dEbFf460aC112a837C89BAa7cd"

/**
 * @dev PancakeSwap信息查询脚本
 * 查询交易对的流动性、价格、用户余额等信息
 * 包含价格影响分析、LP代币信息、用户份额计算等功能
 */
async function main() {
	dotenvConfig()
	const rpcUrl = process.env.BSC_TESTNET_RPC_URL
	const privateKey = process.env.PRIVATE_KEY
	if (!rpcUrl || !privateKey) {
		throw new Error("请在.env中配置BSC_TESTNET_RPC_URL和PRIVATE_KEY")
	}
	const provider = new ethers.JsonRpcProvider(rpcUrl)
	const wallet = new ethers.Wallet(privateKey, provider)

	console.log("📊 查询PancakeSwap信息...")
	console.log("📝 查询账户:", wallet.address)

	// 读取部署信息
	let deploymentInfo
	try {
		deploymentInfo = JSON.parse(fs.readFileSync("deployment-bsc-testnet.json", "utf8"))
	} catch (error) {
		console.error("❌ 无法读取部署信息文件，请先运行部署脚本")
		process.exit(1)
	}

	const mockUSDTAddress = deploymentInfo.contracts.mockUSDT
	const controlledERC20Address = deploymentInfo.contracts.controlledERC20

	console.log("📄 MockUSDT地址:", mockUSDTAddress)
	console.log("📄 ControlledERC20地址:", controlledERC20Address)

	// 获取合约实例
	const mockUSDT = MockUSDT__factory.connect(mockUSDTAddress, wallet)
	const controlledERC20 = ControlledERC20__factory.connect(controlledERC20Address, wallet)
	const pancakeRouter = IPancakeRouter02__factory.connect(PANCAKE_ROUTER_ADDRESS, wallet)
	const pancakeFactory = IPancakeFactory__factory.connect(PANCAKE_FACTORY_ADDRESS, wallet)

	// 检查交易对是否存在（如果不存在则提示先添加流动性）
	console.log("\n🔍 检查交易对...")
	const pairAddress = await pancakeFactory.getPair(mockUSDTAddress, controlledERC20Address)

	if (pairAddress === ethers.ZeroAddress) {
		console.log("❌ 交易对不存在，请先添加流动性")
		process.exit(1)
	}

	console.log("✅ 交易对地址:", pairAddress)

	// 获取交易对详细信息（储备量、代币地址等）
	const pair = IPancakePair__factory.connect(pairAddress, wallet)
	const [reserve0, reserve1, blockTimestampLast] = await pair.getReserves()
	const token0 = await pair.token0()
	const token1 = await pair.token1()

	// 确定哪个储备量对应哪个代币（PancakeSwap按地址排序）
	let mockUSDTReserve: bigint
	let controlledERC20Reserve: bigint
	let mockUSDTDecimals: number
	let controlledERC20Decimals: number

	if (token0.toLowerCase() === mockUSDTAddress.toLowerCase()) {
		mockUSDTReserve = reserve0
		controlledERC20Reserve = reserve1
		mockUSDTDecimals = 6
		controlledERC20Decimals = 18
	} else {
		mockUSDTReserve = reserve1
		controlledERC20Reserve = reserve0
		mockUSDTDecimals = 6
		controlledERC20Decimals = 18
	}

	// 显示流动性信息
	console.log("\n💧 流动性信息:")
	console.log("MockUSDT储备:", ethers.formatUnits(mockUSDTReserve, mockUSDTDecimals), "mUSDT")
	console.log("ControlledERC20储备:", ethers.formatUnits(controlledERC20Reserve, controlledERC20Decimals), "CTRL")

	// 计算代币价格（考虑小数位数差异）
	const price1 =
		(Number(controlledERC20Reserve) / Number(mockUSDTReserve)) *
		Math.pow(10, mockUSDTDecimals - controlledERC20Decimals)
	const price2 =
		(Number(mockUSDTReserve) / Number(controlledERC20Reserve)) *
		Math.pow(10, controlledERC20Decimals - mockUSDTDecimals)

	console.log("\n💰 价格信息:")
	console.log("1 mUSDT =", price1.toFixed(6), "CTRL")
	console.log("1 CTRL =", price2.toFixed(6), "mUSDT")

	// 获取LP代币总供应量
	const totalSupply = await pair.totalSupply()
	console.log("\n🪙 LP代币信息:")
	console.log("LP代币总供应量:", ethers.formatEther(totalSupply))

	// 检查用户LP代币余额
	const userLPBalance = await pair.balanceOf(wallet.address)
	if (userLPBalance > 0n) {
		console.log("用户LP代币余额:", ethers.formatEther(userLPBalance))
		const userShare = (Number(userLPBalance) / Number(totalSupply)) * 100
		console.log("用户份额:", userShare.toFixed(4) + "%")
	}

	// 模拟不同数量的交易（分析价格影响）
	console.log("\n📈 价格影响分析:")
	const testAmounts = [
		ethers.parseUnits("100", 6), // 100 mUSDT
		ethers.parseUnits("1000", 6), // 1000 mUSDT
		ethers.parseUnits("10000", 6), // 10000 mUSDT
	]

	for (const amount of testAmounts) {
		try {
			const path = [mockUSDTAddress, controlledERC20Address]
			const amountsOut = await pancakeRouter.getAmountsOut(amount, path)
			const priceImpact = ((Number(amount) - Number(amountsOut[1]) * price1) / Number(amount)) * 100

			console.log(
				`${ethers.formatUnits(amount, 6)} mUSDT -> ${ethers.formatUnits(amountsOut[1], 18)} CTRL (价格影响: ${priceImpact.toFixed(2)}%)`
			)
		} catch (error) {
			console.log(`${ethers.formatUnits(amount, 6)} mUSDT -> 交易失败 (流动性不足)`)
		}
	}

	// 反向交易测试
	console.log("\n📉 反向价格影响分析:")
	const testAmountsReverse = [
		ethers.parseEther("100"), // 100 CTRL
		ethers.parseEther("1000"), // 1000 CTRL
		ethers.parseEther("10000"), // 10000 CTRL
	]

	for (const amount of testAmountsReverse) {
		try {
			const path = [controlledERC20Address, mockUSDTAddress]
			const amountsOut = await pancakeRouter.getAmountsOut(amount, path)
			const priceImpact = ((Number(amount) - Number(amountsOut[1]) * price2) / Number(amount)) * 100

			console.log(
				`${ethers.formatUnits(amount, 18)} CTRL -> ${ethers.formatUnits(amountsOut[1], 6)} mUSDT (价格影响: ${priceImpact.toFixed(2)}%)`
			)
		} catch (error) {
			console.log(`${ethers.formatUnits(amount, 18)} CTRL -> 交易失败 (流动性不足)`)
		}
	}

	// 获取用户代币余额
	const userMockUSDTBalance = await mockUSDT.balanceOf(wallet.address)
	const userControlledERC20Balance = await controlledERC20.balanceOf(wallet.address)

	console.log("\n👤 用户余额:")
	console.log("MockUSDT余额:", ethers.formatUnits(userMockUSDTBalance, 6), "mUSDT")
	console.log("ControlledERC20余额:", ethers.formatEther(userControlledERC20Balance), "CTRL")

	// 保存信息到文件
	const info = {
		pairAddress: pairAddress,
		reserves: {
			mockUSDT: mockUSDTReserve.toString(),
			controlledERC20: controlledERC20Reserve.toString(),
		},
		prices: {
			mUSDTtoCTRL: price1,
			CTRLtoMUSDT: price2,
		},
		totalSupply: totalSupply.toString(),
		userLPBalance: userLPBalance.toString(),
		userBalances: {
			mockUSDT: userMockUSDTBalance.toString(),
			controlledERC20: userControlledERC20Balance.toString(),
		},
		timestamp: new Date().toISOString(),
	}

	fs.writeFileSync("pancakeswap-info.json", JSON.stringify(info, null, 2))
	console.log("\n💾 信息已保存到 pancakeswap-info.json")

	console.log("\n🔗 PancakeSwap链接:")
	console.log("交易页面: https://testnet.pancakeswap.finance/swap")
	console.log("流动性页面: https://testnet.pancakeswap.finance/liquidity")
}

main()
	.then(() => process.exit(0))
	.catch((error) => {
		console.error("❌ 查询失败:", error)
		process.exit(1)
	})