import { createPublicClient, http, getAddress } from 'viem'
import { arbitrumSepolia } from 'viem/chains'

const client = createPublicClient({
  chain: arbitrumSepolia,
  transport: http('https://api.zan.top/node/v1/arb/sepolia/baf84c429d284bb5b676cb8c9ca21c07')
})

const LENDING_PROXY = getAddress('0xCb4E7B1069F6C26A1c27523ce4c8dfD884552d1D')
const USDC = getAddress('0x75faf114eafb1BDbe2F0316DF893fd58CE46AA4d')
const USER = getAddress('0xa013422A5918CD099C63c8CC35283EACa99a705d')

const TRANSFER_EVENT = {
  type: 'event',
  name: 'Transfer',
  inputs: [
    { indexed: true, name: 'from', type: 'address' },
    { indexed: true, name: 'to', type: 'address' },
    { indexed: false, name: 'value', type: 'uint256' }
  ]
}

async function main() {
  console.log('\n检查 USDC 供应/提取历史...\n')
  console.log('用户:', USER)
  console.log('Lending 合约:', LENDING_PROXY)
  console.log()

  const latestBlock = await client.getBlockNumber()
  console.log('最新区块:', latestBlock)
  console.log('查询范围: 最近 10000 个区块\n')

  try {
    // 1. 检查用户转入 Lending 的 USDC（supply 操作）
    console.log('=== 1. USDC 转入 Lending 合约（Supply）===')
    const logsToLending = await client.getLogs({
      address: USDC,
      event: TRANSFER_EVENT,
      args: {
        from: USER,
        to: LENDING_PROXY
      },
      fromBlock: latestBlock - 10000n,
      toBlock: latestBlock
    })

    if (logsToLending.length > 0) {
      console.log(`找到 ${logsToLending.length} 笔转入记录:\n`)
      let totalSupplied = 0n
      logsToLending.forEach((log, i) => {
        const { value } = log.args
        totalSupplied += value
        console.log(`${i + 1}. 区块 ${log.blockNumber}`)
        console.log(`   交易: ${log.transactionHash}`)
        console.log(`   数量: ${Number(value) / 1e6} USDC`)
        console.log()
      })
      console.log(`总存入: ${Number(totalSupplied) / 1e6} USDC\n`)
    } else {
      console.log('未找到转入记录\n')
    }

    // 2. 检查 Lending 转给用户的 USDC（withdraw 操作）
    console.log('=== 2. USDC 从 Lending 转出（Withdraw）===')
    const logsFromLending = await client.getLogs({
      address: USDC,
      event: TRANSFER_EVENT,
      args: {
        from: LENDING_PROXY,
        to: USER
      },
      fromBlock: latestBlock - 10000n,
      toBlock: latestBlock
    })

    if (logsFromLending.length > 0) {
      console.log(`找到 ${logsFromLending.length} 笔转出记录:\n`)
      let totalWithdrawn = 0n
      logsFromLending.forEach((log, i) => {
        const { value } = log.args
        totalWithdrawn += value
        console.log(`${i + 1}. 区块 ${log.blockNumber}`)
        console.log(`   交易: ${log.transactionHash}`)
        console.log(`   数量: ${Number(value) / 1e6} USDC`)
        console.log()
      })
      console.log(`总提取: ${Number(totalWithdrawn) / 1e6} USDC\n`)
    } else {
      console.log('未找到转出记录\n')
    }

    // 3. 获取当前余额
    console.log('=== 3. 当前状态 ===')
    const LENDING_ABI = [
      {
        inputs: [{ name: 'account', type: 'address' }],
        name: 'getBalance',
        outputs: [{ name: '', type: 'int256' }],
        stateMutability: 'view',
        type: 'function'
      },
      {
        inputs: [{ name: 'account', type: 'address' }],
        name: 'borrowBalanceOf',
        outputs: [{ name: '', type: 'uint256' }],
        stateMutability: 'view',
        type: 'function'
      }
    ]

    const balance = await client.readContract({
      address: LENDING_PROXY,
      abi: LENDING_ABI,
      functionName: 'getBalance',
      args: [USER]
    })

    const borrowBalance = await client.readContract({
      address: LENDING_PROXY,
      abi: LENDING_ABI,
      functionName: 'borrowBalanceOf',
      args: [USER]
    })

    console.log('USDC 余额（在 Lending 中）:', Number(balance) / 1e6, 'USDC')
    console.log('  原始值:', balance.toString())
    console.log('  正数 = 存款，负数 = 借款')
    console.log()
    console.log('借款余额:', Number(borrowBalance) / 1e6, 'USDC')
    console.log()

    // 4. 分析
    console.log('=== 分析 ===')
    if (balance > 0) {
      console.log('⚠️  你当前有存款！')
      console.log(`   存款金额: ${Number(balance) / 1e6} USDC`)
      console.log()
      console.log('这意味着：')
      console.log(`   - 如果你借款 ≤ ${Number(balance) / 1e6} USDC，只是提取存款`)
      console.log(`   - 只有借款 > ${Number(balance) / 1e6} USDC，才会产生债务`)
      console.log()
      console.log('建议：')
      console.log('   1. 如果要真正借款，请借款金额大于当前存款')
      console.log(`      例如：借款 ${Number(balance) / 1e6 + 100} USDC`)
      console.log('   2. 或者先提取所有存款，再借款')
    } else if (balance < 0) {
      console.log('✓ 你有借款！')
      console.log(`   借款金额: ${-Number(balance) / 1e6} USDC`)
    } else {
      console.log('✓ 你没有存款也没有借款')
    }

  } catch (error) {
    console.error('查询失败:', error.message)
  }
}

main()