import { ApolloClient, InMemoryCache, gql } from '@apollo/client/core' import { _META, GET_DEPOSITS, GET_STATISTIC, GET_REGISTERED, GET_WITHDRAWALS, GET_NOTE_ACCOUNTS, GET_ENCRYPTED_NOTES } from './queries' const isEmptyArray = (arr) => !Array.isArray(arr) || !arr.length const first = 1000 const link = ({ getContext }) => { const { chainId } = getContext() return CHAIN_GRAPH_URLS[chainId] } const CHAIN_GRAPH_URLS = { 1: 'https://tornadocash-rpc.com/subgraphs/name/tornadocash/mainnet-tornado-subgraph', 5: 'https://api.thegraph.com/subgraphs/name/tornadocash/goerli-tornado-subgraph', 10: 'https://tornadocash-rpc.com/subgraphs/name/tornadocash/optimism-tornado-subgraph', 56: 'https://tornadocash-rpc.com/subgraphs/name/tornadocash/bsc-tornado-subgraph', 100: 'https://tornadocash-rpc.com/subgraphs/name/tornadocash/xdai-tornado-subgraph', 137: 'https://tornadocash-rpc.com/subgraphs/name/tornadocash/matic-tornado-subgraph', 42161: 'https://tornadocash-rpc.com/subgraphs/name/tornadocash/arbitrum-tornado-subgraph', 43114: 'https://api.thegraph.com/subgraphs/name/tornadocash/avalanche-tornado-subgraph', 11155111: 'https://tornadocash-rpc.com/subgraphs/name/tornadocash/sepolia-tornado-subgraph' } const defaultOptions = { query: { fetchPolicy: 'no-cache', errorPolicy: 'all' } } const client = new ApolloClient({ uri: link, credentials: 'omit', cache: new InMemoryCache(), defaultOptions }) const registryClient = new ApolloClient({ uri: 'https://tornadocash-rpc.com/subgraphs/name/tornadocash/tornado-relayer-registry', cache: new InMemoryCache(), credentials: 'omit', defaultOptions }) async function getStatistic({ currency, amount, netId }) { try { const { data } = await client.query({ context: { chainId: netId }, query: gql(GET_STATISTIC), variables: { currency, first: 10, orderBy: 'index', orderDirection: 'desc', amount: String(amount) } }) if (!data) { return { lastSyncBlock: '', events: [] } } const { deposits } = data const lastSyncBlock = await getMeta({ netId }) const events = deposits .map((e) => ({ timestamp: e.timestamp, leafIndex: Number(e.index), blockNumber: Number(e.blockNumber) })) .reverse() const [lastEvent] = events.slice(-1) return { lastSyncBlock: lastEvent?.blockNumber >= lastSyncBlock ? lastEvent.blockNumber + 1 : lastSyncBlock, events } } catch { return { lastSyncBlock: '', events: [] } } } async function getAllRegisters(fromBlock) { try { const relayers = await getRegisters(fromBlock) if (!relayers) { return { lastSyncBlock: '', events: [] } } const lastSyncBlock = await getRegisteredMeta() return { lastSyncBlock, events: relayers } } catch { return { lastSyncBlock: '', events: [] } } } async function getAllDeposits({ currency, amount, fromBlock, netId }) { try { let deposits = [] while (true) { let result = await getDeposits({ currency, amount, fromBlock, netId }) if (isEmptyArray(result)) { break } if (result.length < 900) { deposits = deposits.concat(result) break } const [lastEvent] = result.slice(-1) result = result.filter((e) => e.blockNumber !== lastEvent.blockNumber) fromBlock = Number(lastEvent.blockNumber) deposits = deposits.concat(result) } if (!deposits) { return { lastSyncBlock: '', events: [] } } const lastSyncBlock = await getMeta({ netId }) const data = deposits.map((e) => ({ timestamp: e.timestamp, commitment: e.commitment, leafIndex: Number(e.index), blockNumber: Number(e.blockNumber), transactionHash: e.transactionHash })) const [lastEvent] = data.slice(-1) return { events: data, lastSyncBlock: lastEvent?.blockNumber >= lastSyncBlock ? lastEvent.blockNumber + 1 : lastSyncBlock } } catch { return { lastSyncBlock: '', events: [] } } } async function getMeta({ netId }) { try { const { data } = await client.query({ context: { chainId: netId }, query: gql(_META) }) if (!data) { return undefined } return data._meta.block.number } catch { return undefined } } async function getRegisteredMeta() { try { const { data } = await registryClient.query({ context: { chainId: 1 }, query: gql(_META) }) if (!data) { return undefined } return data._meta.block.number } catch { return undefined } } async function getRegisters(fromBlock) { const { data } = await registryClient.query({ context: { chainId: 1 }, query: gql(GET_REGISTERED), variables: { first, fromBlock } }) if (!data) { return [] } return data.relayers } async function getDeposits({ currency, amount, fromBlock, netId }) { const { data } = await client.query({ context: { chainId: netId }, query: gql(GET_DEPOSITS), variables: { currency, amount: String(amount), first, fromBlock } }) if (!data) { return [] } return data.deposits } async function getAllWithdrawals({ currency, amount, fromBlock, netId }) { try { let withdrawals = [] while (true) { let result = await getWithdrawals({ currency, amount, fromBlock, netId }) if (isEmptyArray(result)) { break } if (result.length < 900) { withdrawals = withdrawals.concat(result) break } const [lastEvent] = result.slice(-1) result = result.filter((e) => e.blockNumber !== lastEvent.blockNumber) fromBlock = Number(lastEvent.blockNumber) withdrawals = withdrawals.concat(result) } if (!withdrawals) { return { lastSyncBlock: '', events: [] } } const lastSyncBlock = await getMeta({ netId }) const data = withdrawals.map((e) => ({ to: e.to, fee: e.fee, timestamp: e.timestamp, nullifierHash: e.nullifier, blockNumber: Number(e.blockNumber), transactionHash: e.transactionHash })) const [lastEvent] = data.slice(-1) return { events: data, lastSyncBlock: lastEvent?.blockNumber >= lastSyncBlock ? lastEvent.blockNumber + 1 : lastSyncBlock } } catch { return { lastSyncBlock: '', events: [] } } } async function getWithdrawals({ currency, amount, fromBlock, netId }) { const { data } = await client.query({ context: { chainId: netId }, query: gql(GET_WITHDRAWALS), variables: { currency, amount: String(amount), fromBlock, first } }) if (!data) { return [] } return data.withdrawals } async function getNoteAccounts({ address, netId }) { try { const { data } = await client.query({ context: { chainId: netId }, query: gql(GET_NOTE_ACCOUNTS), variables: { address } }) if (!data) { return { lastSyncBlock: '', events: [] } } const lastSyncBlock = await getMeta({ netId }) return { lastSyncBlock, events: data.noteAccounts } } catch { return { lastSyncBlock: '', events: [] } } } async function getAllEncryptedNotes({ fromBlock, netId }) { try { let encryptedNotes = [] while (true) { let result = await getEncryptedNotes({ fromBlock, netId }) if (isEmptyArray(result)) { break } if (result.length < 900) { encryptedNotes = encryptedNotes.concat(result) break } const [lastEvent] = result.slice(-1) result = result.filter((e) => e.blockNumber !== lastEvent.blockNumber) fromBlock = Number(lastEvent.blockNumber) encryptedNotes = encryptedNotes.concat(result) if (isEmptyArray(result)) { break } } if (!encryptedNotes) { return { lastSyncBlock: '', events: [] } } const lastSyncBlock = await getMeta({ netId }) const data = encryptedNotes.map((e) => ({ txHash: e.transactionHash, encryptedNote: e.encryptedNote, transactionHash: e.transactionHash, blockNumber: Number(e.blockNumber) })) const [lastEvent] = data.slice(-1) return { events: data, lastSyncBlock: lastEvent?.blockNumber >= lastSyncBlock ? lastEvent.blockNumber + 1 : lastSyncBlock } } catch { return { lastSyncBlock: '', events: [] } } } async function getEncryptedNotes({ fromBlock, netId }) { const { data } = await client.query({ context: { chainId: netId }, query: gql(GET_ENCRYPTED_NOTES), variables: { fromBlock, first } }) if (!data) { return [] } return data.encryptedNotes } export default { getDeposits, getStatistic, getAllDeposits, getWithdrawals, getNoteAccounts, getAllRegisters, getAllWithdrawals, getAllEncryptedNotes }