classic-ui-dev/updateEvents.js

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JavaScript
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2022-04-21 23:05:56 -04:00
const fs = require('fs')
const Web3 = require('web3')
const Jszip = require('jszip')
const networkConfig = require('./networkConfig')
const ABI = require('./abis/Instance.abi.json')
const EVENTS = ['Deposit', 'Withdrawal']
const CHAINS = [56]
const jszip = new Jszip()
async function download({ name, contentType }) {
const path = `${name}.zip`
const data = fs.readFileSync(path)
const zip = await jszip.loadAsync(data)
const file = zip.file(
path
.replace('./static/events/', '')
.slice(0, -4)
.toLowerCase()
)
const content = await file.async(contentType)
return content
}
async function loadCachedEvents({ type, amount, nativeCurrency, deployedBlock }) {
try {
const module = await download({
contentType: 'string',
name: `./static/events/${type}s_${nativeCurrency}_${amount}.json`
})
if (module) {
const events = JSON.parse(module)
return {
events,
lastBlock: events[events.length - 1].blockNumber
}
}
} catch (err) {
console.error(`Method loadCachedEvents has error: ${err.message}`)
return {
events: [],
lastBlock: deployedBlock
}
}
}
async function main(type, netId) {
const { tokens, nativeCurrency, deployedBlock } = networkConfig[`netId${netId}`]
const CONTRACTS = tokens[nativeCurrency].instanceAddress
for (const [instance, _contract] of Object.entries(CONTRACTS)) {
const cachedEvents = await loadCachedEvents({ type, amount: instance, nativeCurrency, deployedBlock })
console.log('cachedEvents', cachedEvents.events.length)
let startBlock = cachedEvents.lastBlock + 1
console.log('startBlock', startBlock)
const rpcUrl =
netId === 1
? networkConfig[`netId${netId}`].rpcUrls.Infura.url
: networkConfig[`netId${netId}`].rpcUrls.publicRpc3.url
const provider = new Web3.providers.HttpProvider(rpcUrl)
const web3 = new Web3(provider)
const contract = new web3.eth.Contract(ABI, _contract)
let events = []
console.log(netId)
if (netId === 56) {
const blockRange = 4950
const currentBlockNumber = await web3.eth.getBlockNumber()
const blockDifference = Math.ceil(currentBlockNumber - startBlock)
let numberParts = blockDifference === 0 ? 1 : Math.ceil(blockDifference / blockRange)
const part = Math.ceil(blockDifference / numberParts)
console.log('numberParts', numberParts)
let toBlock = startBlock + part
if (startBlock < currentBlockNumber) {
if (toBlock >= currentBlockNumber) {
toBlock = 'latest'
numberParts = 1
}
for (let i = 0; i < numberParts; i++) {
try {
await new Promise((resolve) => setTimeout(resolve, 200))
console.log({ startBlock, toBlock })
const partOfEvents = await contract.getPastEvents(type, {
fromBlock: startBlock,
toBlock
})
if (partOfEvents) {
events = events.concat(partOfEvents)
console.log({
events: events.length
})
}
startBlock = toBlock
toBlock += part
} catch {
numberParts = numberParts + 1
}
}
}
} else {
events = await contract.getPastEvents(type, {
fromBlock: startBlock,
toBlock: 'latest'
})
}
console.log('events', events.length)
if (type === 'Deposit') {
events = events.map(({ blockNumber, transactionHash, returnValues }) => {
const { commitment, leafIndex, timestamp } = returnValues
return {
blockNumber,
transactionHash,
commitment,
leafIndex: Number(leafIndex),
timestamp
}
})
}
if (type === 'Withdrawal') {
events = events.map(({ blockNumber, transactionHash, returnValues }) => {
const { nullifierHash, to, fee } = returnValues
return {
blockNumber,
transactionHash,
nullifierHash,
to,
fee
}
})
}
const eventsJson = JSON.stringify(cachedEvents.events.concat(events), null, 2) + '\n'
fs.writeFileSync(`./static/events/${type.toLowerCase()}s_${nativeCurrency}_${instance}.json`, eventsJson)
}
}
async function start() {
for await (const chain of CHAINS) {
for await (const event of EVENTS) {
await main(event, chain)
}
}
}
start()