123 lines
3.7 KiB
JavaScript
123 lines
3.7 KiB
JavaScript
import 'dotenv/config'
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import fs from 'fs'
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import { uniqBy } from 'lodash'
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import networkConfig, { enabledChains } from '../networkConfig'
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import ABI from '../abis/Instance.abi.json'
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import { loadCachedEvents, getPastEvents } from './helpers'
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const EVENTS_PATH = './static/events/'
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function parseArg(netId, tokenOrEvent) {
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const { tokens } = networkConfig[`netId${netId}`]
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const keys = Object.keys(tokens)
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if (tokenOrEvent !== undefined) {
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const lower = tokenOrEvent.toLowerCase()
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return keys.includes(lower)
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? { token: lower }
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: { event: lower[0].toUpperCase() + lower.slice(1).toLowerCase() }
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} else return undefined
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}
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function parseDepositEvent({ blockNumber, transactionHash, returnValues }) {
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const { commitment, leafIndex, timestamp } = returnValues
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return {
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timestamp,
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commitment,
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blockNumber,
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transactionHash,
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leafIndex: Number(leafIndex)
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}
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}
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function parseWithdrawalEvent({ blockNumber, transactionHash, returnValues }) {
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const { nullifierHash, to, fee } = returnValues
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return {
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to,
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fee,
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blockNumber,
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nullifierHash,
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transactionHash
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}
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}
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function filterWithdrawalEvents(events) {
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return uniqBy(events, 'nullifierHash').sort((a, b) => a.blockNumber - b.blockNumber)
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}
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function filterDepositEvents(events) {
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return events.filter((e, index) => Number(e.leafIndex) === index)
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}
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async function main(netId, chosenToken, chosenEvent) {
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const { tokens, deployedBlock } = networkConfig[`netId${netId}`]
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const tokenSymbols = chosenToken !== undefined ? [chosenToken] : Object.keys(tokens)
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const eventNames = chosenEvent !== undefined ? [chosenEvent] : ['Deposit', 'Withdrawal']
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for (const eventName of eventNames) {
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// Get the parser that we need
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const parser = eventName === 'Deposit' ? parseDepositEvent : parseWithdrawalEvent
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// Get the parser that we need
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const filter = eventName === 'Deposit' ? filterDepositEvents : filterWithdrawalEvents
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for (const tokenSymbol of tokenSymbols) {
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// Now load the denominations and address
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const instanceData = Object.entries(tokens[tokenSymbol].instanceAddress)
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// And now sync
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for (const data of instanceData) {
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const denom = data[0]
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const address = data[1]
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// Now load cached events
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const cachedEvents = loadCachedEvents({
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name: `${eventName.toLowerCase()}s_${netId}_${tokenSymbol}_${denom}.json`,
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directory: EVENTS_PATH,
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deployedBlock
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})
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console.log('Update events for', denom, tokenSymbol.toUpperCase(), `${eventName.toLowerCase()}s`)
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console.log('cachedEvents count - ', cachedEvents.events.length)
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console.log('lastBlock - ', cachedEvents.lastBlock)
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let events = await getPastEvents({
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type: eventName,
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fromBlock: cachedEvents.lastBlock + 1,
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netId: netId,
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events: [],
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contractAttrs: [ABI, address]
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})
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events = filter(cachedEvents.events.concat(events.map(parser)))
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fs.writeFileSync(
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`${EVENTS_PATH}${eventName.toLowerCase()}s_${netId}_${tokenSymbol}_${denom}.json`,
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JSON.stringify(events, null, 2) + '\n'
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)
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}
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}
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}
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}
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/**
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* @param netId ID of the network for which event(s) should be synced.
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* @param tokenOrEvent Optional token or event.
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* @param eventOrToken Optional token or event. Overwrites the former option.
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*/
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async function start() {
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const [, , , netId, tokenOrEvent, eventOrToken] = process.argv
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const args = { ...parseArg(netId, tokenOrEvent), ...parseArg(netId, eventOrToken) }
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if (!enabledChains.includes(netId)) {
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throw new Error(`Supported chain ids ${enabledChains.join(', ')}`)
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}
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await main(netId, args.token, args.event)
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}
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start()
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