95 lines
3.6 KiB
JavaScript
95 lines
3.6 KiB
JavaScript
require('dotenv').config()
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const Web3 = require('web3')
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const { toBN } = require('web3').utils
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const logger = require('../logger')('eventsUtils')
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const { BRIDGE_MODES, getBridgeMode, getBridgeABIs, ERC_TYPES } = require('./bridgeMode')
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const { getTokenType } = require('./ercUtils')
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const { HOME_RPC_URL, FOREIGN_RPC_URL, HOME_BRIDGE_ADDRESS, FOREIGN_BRIDGE_ADDRESS } = process.env
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const HOME_DEPLOYMENT_BLOCK = toBN(Number(process.env.HOME_DEPLOYMENT_BLOCK) || 0)
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const FOREIGN_DEPLOYMENT_BLOCK = toBN(Number(process.env.FOREIGN_DEPLOYMENT_BLOCK) || 0)
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const homeProvider = new Web3.providers.HttpProvider(HOME_RPC_URL)
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const web3Home = new Web3(homeProvider)
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const foreignProvider = new Web3.providers.HttpProvider(FOREIGN_RPC_URL)
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const web3Foreign = new Web3(foreignProvider)
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const HOME_ERC_TO_ERC_ABI = require('../../contracts/build/contracts/HomeBridgeErcToErc').abi
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const ERC20_ABI = require('../../contracts/build/contracts/ERC20').abi
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const { getPastEvents, getBlockNumber } = require('./contract')
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async function main(mode) {
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const homeErcBridge = new web3Home.eth.Contract(HOME_ERC_TO_ERC_ABI, HOME_BRIDGE_ADDRESS)
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const bridgeMode = mode || (await getBridgeMode(homeErcBridge))
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const { HOME_ABI, FOREIGN_ABI } = getBridgeABIs(bridgeMode)
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const homeBridge = new web3Home.eth.Contract(HOME_ABI, HOME_BRIDGE_ADDRESS)
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const foreignBridge = new web3Foreign.eth.Contract(FOREIGN_ABI, FOREIGN_BRIDGE_ADDRESS)
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const tokenType = await getTokenType(foreignBridge, FOREIGN_BRIDGE_ADDRESS)
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const isExternalErc20 = tokenType === ERC_TYPES.ERC20
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const v1Bridge = bridgeMode === BRIDGE_MODES.NATIVE_TO_ERC_V1
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const erc20MethodName =
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bridgeMode === BRIDGE_MODES.NATIVE_TO_ERC || v1Bridge ? 'erc677token' : 'erc20token'
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const erc20Address = await foreignBridge.methods[erc20MethodName]().call()
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const erc20Contract = new web3Foreign.eth.Contract(ERC20_ABI, erc20Address)
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logger.debug('getting last block numbers')
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const [homeBlockNumber, foreignBlockNumber] = await getBlockNumber(web3Home, web3Foreign)
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logger.debug("calling homeBridge.getPastEvents('UserRequestForSignature')")
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const homeDeposits = await getPastEvents({
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contract: homeBridge,
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event: v1Bridge ? 'Deposit' : 'UserRequestForSignature',
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fromBlock: HOME_DEPLOYMENT_BLOCK,
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toBlock: homeBlockNumber,
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options: {}
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})
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logger.debug("calling foreignBridge.getPastEvents('RelayedMessage')")
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const foreignDeposits = await getPastEvents({
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contract: foreignBridge,
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event: v1Bridge ? 'Deposit' : 'RelayedMessage',
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fromBlock: FOREIGN_DEPLOYMENT_BLOCK,
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toBlock: foreignBlockNumber,
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options: {}
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})
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logger.debug("calling homeBridge.getPastEvents('AffirmationCompleted')")
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const homeWithdrawals = await getPastEvents({
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contract: homeBridge,
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event: v1Bridge ? 'Withdraw' : 'AffirmationCompleted',
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fromBlock: HOME_DEPLOYMENT_BLOCK,
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toBlock: homeBlockNumber,
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options: {}
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})
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logger.debug("calling foreignBridge.getPastEvents('UserRequestForAffirmation')")
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const foreignWithdrawals = isExternalErc20
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? await getPastEvents({
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contract: erc20Contract,
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event: 'Transfer',
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fromBlock: FOREIGN_DEPLOYMENT_BLOCK,
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toBlock: foreignBlockNumber,
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options: {
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filter: { to: FOREIGN_BRIDGE_ADDRESS }
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}
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})
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: await getPastEvents({
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contract: foreignBridge,
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event: v1Bridge ? 'Withdraw' : 'UserRequestForAffirmation',
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fromBlock: FOREIGN_DEPLOYMENT_BLOCK,
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toBlock: foreignBlockNumber,
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options: {}
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})
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logger.debug('Done')
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return {
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homeDeposits,
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foreignDeposits,
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homeWithdrawals,
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foreignWithdrawals,
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isExternalErc20
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}
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}
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module.exports = main
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