346 lines
11 KiB
JavaScript
346 lines
11 KiB
JavaScript
const _ = require('lodash/fp')
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const axios = require('axios')
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const { utils: coinUtils } = require('@lamassu/coins')
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const NAME = 'LN'
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const SUPPORTED_COINS = ['LN', 'BTC']
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const BN = require('../../../bn')
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function request (graphqlQuery, token, endpoint) {
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const headers = {
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'content-type': 'application/json',
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'Authorization': `Bearer ${token}`
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}
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return axios({
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method: 'post',
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url: endpoint,
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headers: headers,
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data: graphqlQuery
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})
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.then(r => {
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if (r.error) throw r.error
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return r.data
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})
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.catch(err => {
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throw new Error(err)
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})
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}
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function checkCryptoCode (cryptoCode) {
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if (!SUPPORTED_COINS.includes(cryptoCode)) {
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return Promise.reject(new Error('Unsupported crypto: ' + cryptoCode))
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}
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return Promise.resolve()
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}
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function getTransactionsByAddress (token, endpoint, address) {
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const accountInfo = {
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'operationName': 'me',
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'query': `query me {
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me {
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defaultAccount {
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defaultWalletId
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wallets {
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id
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walletCurrency
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transactionsByAddress (address: "${address}")
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edges {
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node {
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direction
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settlementAmount
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status
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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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}`,
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'variables': {}
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}
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return request(accountInfo, token, endpoint)
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.then(r => {
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return r.data.me.defaultAccount
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})
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.catch(err => {
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throw new Error(err)
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})
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}
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function getGaloyAccount (token, endpoint) {
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const accountInfo = {
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'operationName': 'me',
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'query': `query me {
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me {
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defaultAccount {
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defaultWalletId
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wallets {
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id
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walletCurrency
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balance
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pendingIncomingBalance
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}
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}
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}
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}`,
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'variables': {}
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}
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return request(accountInfo, token, endpoint)
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.then(r => {
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return r.data.me.defaultAccount
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})
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.catch(err => {
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throw new Error(err)
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})
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}
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function isLightning (address) {
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return address.substr(0, 2) === 'ln'
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}
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function sendFundsOnChain (walletId, address, cryptoAtoms, token, endpoint) {
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const sendOnChain = {
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'operationName': 'onChainPaymentSend',
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'query': `mutation onChainPaymentSend($input: OnChainPaymentSendInput!) {
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onChainPaymentSend(input: $input) {
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errors {
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message
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path
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}
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status
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}
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}`,
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'variables': { 'input': { 'address': `${address}`, 'amount': `${cryptoAtoms}`, 'walletId': `${walletId}` } }
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}
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return request(sendOnChain, token, endpoint)
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.then(result => {
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return result.data.onChainPaymentSend
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})
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}
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function sendFundsLN (walletId, invoice, cryptoAtoms, token, endpoint) {
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const sendLnNoAmount = {
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'operationName': 'lnNoAmountInvoicePaymentSend',
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'query': `mutation lnNoAmountInvoicePaymentSend($input: LnNoAmountInvoicePaymentInput!) {
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lnNoAmountInvoicePaymentSend(input: $input) {
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errors {
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message
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path
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}
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status
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}
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}`,
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'variables': { 'input': { 'paymentRequest': `${invoice}`, 'walletId': `${walletId}`, 'amount': `${cryptoAtoms}` } }
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}
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return request(sendLnNoAmount, token, endpoint).then(result => result.data.lnNoAmountInvoicePaymentSend)
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}
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function sendProbeRequest (walletId, invoice, cryptoAtoms, token, endpoint) {
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const sendProbeNoAmount = {
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'operationName': 'lnNoAmountInvoiceFeeProbe',
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'query': `mutation lnNoAmountInvoiceFeeProbe($input: LnNoAmountInvoiceFeeProbeInput!) {
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lnNoAmountInvoiceFeeProbe(input: $input) {
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amount
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errors {
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message
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path
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}
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}
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}`,
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'variables': { 'input': { 'paymentRequest': `${invoice}`, 'walletId': `${walletId}`, 'amount': `${cryptoAtoms}` } }
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}
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return request(sendProbeNoAmount, token, endpoint).then(result => result.data.lnNoAmountInvoiceFeeProbe)
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}
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function sendCoins (account, tx, settings, operatorId) {
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const { toAddress, cryptoAtoms, cryptoCode } = tx
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const externalCryptoCode = coinUtils.getEquivalentCode(cryptoCode)
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return checkCryptoCode(cryptoCode)
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.then(() => getGaloyAccount(account.apiSecret, account.endpoint))
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.then(galoyAccount => {
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const wallet = _.find(wallet => wallet.walletCurrency === externalCryptoCode &&
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wallet.id === galoyAccount.defaultWalletId &&
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wallet.id === account.walletId)(galoyAccount.wallets)
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if (isLightning(toAddress)) {
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return sendFundsLN(wallet.id, toAddress, cryptoAtoms, account.apiSecret, account.endpoint)
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}
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return sendFundsOnChain(wallet.id, toAddress, cryptoAtoms, account.apiSecret, account.endpoint)
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})
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.then(result => {
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switch (result.status) {
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case 'ALREADY_PAID':
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throw new Error('Transaction already exists!')
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case 'FAILURE':
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throw new Error('Transaction failed!')
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case 'SUCCESS':
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return '<galoy transaction>'
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case 'PENDING':
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return '<galoy transaction>'
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default:
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throw new Error(`Transaction failed: ${_.head(result.errors).message}`)
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}
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})
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}
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function probeLN (account, cryptoCode, invoice) {
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const probeHardLimits = [100, 500, 1000]
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const promises = probeHardLimits.map(limit => {
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return sendProbeRequest(account.walletId, invoice, limit, account.apiSecret, account.endpoint)
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.then(r => _.isEmpty(r.errors))
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})
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return Promise.all(promises)
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.then(results => _.zipObject(probeHardLimits, results))
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}
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function newOnChainAddress (walletId, token, endpoint) {
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const createOnChainAddress = {
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'operationName': 'onChainAddressCreate',
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'query': `mutation onChainAddressCreate($input: OnChainAddressCreateInput!) {
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onChainAddressCreate(input: $input) {
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address
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errors {
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message
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path
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}
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}
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}`,
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'variables': { 'input': { 'walletId': `${walletId}` } }
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}
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return request(createOnChainAddress, token, endpoint)
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.then(result => {
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return result.data.onChainAddressCreate.address
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})
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}
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function newInvoice (walletId, cryptoAtoms, token, endpoint) {
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const createInvoice = {
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'operationName': 'lnInvoiceCreate',
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'query': `mutation lnInvoiceCreate($input: LnInvoiceCreateInput!) {
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lnInvoiceCreate(input: $input) {
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errors {
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message
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path
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}
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invoice {
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paymentRequest
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}
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}
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}`,
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'variables': { 'input': { 'walletId': `${walletId}`, 'amount': `${cryptoAtoms}` } }
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}
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return request(createInvoice, token, endpoint)
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.then(result => {
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return result.data.lnInvoiceCreate.invoice.paymentRequest
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})
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}
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function balance (account, cryptoCode, settings, operatorId) {
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const externalCryptoCode = coinUtils.getEquivalentCode(cryptoCode)
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return checkCryptoCode(cryptoCode)
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.then(() => getGaloyAccount(account.apiSecret, account.endpoint))
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.then(galoyAccount => {
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// account has a list of wallets, should we consider the balance of each one?
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// for now we'll get the first BTC wallet that matches the defaultWalletId
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const wallet = _.find(wallet => wallet.walletCurrency === externalCryptoCode &&
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wallet.id === galoyAccount.defaultWalletId &&
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wallet.id === account.walletId)(galoyAccount.wallets)
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return new BN(wallet.balance || 0)
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})
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}
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function newAddress (account, info, tx, settings, operatorId) {
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const { cryptoAtoms, cryptoCode } = tx
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const externalCryptoCode = coinUtils.getEquivalentCode(cryptoCode)
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return checkCryptoCode(cryptoCode)
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.then(() => getGaloyAccount(account.apiSecret, account.endpoint))
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.then(galoyAccount => {
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const wallet = _.find(wallet => wallet.walletCurrency === externalCryptoCode &&
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wallet.id === galoyAccount.defaultWalletId &&
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wallet.id === account.walletId)(galoyAccount.wallets)
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const promises = [
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newOnChainAddress(wallet.id, account.apiSecret, account.endpoint),
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newInvoice(wallet.id, cryptoAtoms, account.apiSecret, account.endpoint)
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]
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return Promise.all(promises)
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})
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.then(([onChainAddress, invoice]) => {
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return `bitcoin:${onChainAddress}?amount=${cryptoAtoms}&lightning=${invoice}`
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})
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}
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function getStatus (account, tx, requested, settings, operatorId) {
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const { toAddress, cryptoAtoms, cryptoCode } = tx
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const getBalance = _.reduce((acc, value) => {
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acc[value.node.status] = acc[value.node.status].plus(new BN(value.node.settlementAmount))
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return acc
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}, { SUCCESS: new BN(0), PENDING: new BN(0), FAILURE: new BN(0) })
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const externalCryptoCode = coinUtils.getEquivalentCode(cryptoCode)
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return checkCryptoCode(cryptoCode)
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.then(() => {
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const address = coinUtils.parseUrl(cryptoCode, account.environment, toAddress)
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// Consider all LN transactions successful
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if (isLightning(address)) {
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return { receivedCryptoAtoms: cryptoAtoms, status: 'confirmed' }
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}
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// On-chain and intra-ledger transactions
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return getTransactionsByAddress(account.apiSecret, account.endpoint, address)
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.then(accountInfo => {
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const transactions =
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_.find(wallet => wallet.walletCurrency === externalCryptoCode &&
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wallet.id === accountInfo.defaultWalletId &&
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wallet.id === account.walletId)(accountInfo.wallets).transactions.edges
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const { SUCCESS: confirmed, PENDING: pending } = getBalance(transactions)
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if (confirmed.gte(requested)) return { receivedCryptoAtoms: confirmed, status: 'confirmed' }
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if (pending.gte(requested)) return { receivedCryptoAtoms: pending, status: 'authorized' }
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if (pending.gt(0)) return { receivedCryptoAtoms: pending, status: 'insufficientFunds' }
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return { receivedCryptoAtoms: pending, status: 'notSeen' }
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})
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})
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}
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function newFunding (account, cryptoCode, settings, operatorId) {
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const externalCryptoCode = coinUtils.getEquivalentCode(cryptoCode)
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// Regular BTC address
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return checkCryptoCode(cryptoCode)
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.then(() => getGaloyAccount(account.apiSecret, account.endpoint))
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.then(galoyAccount => {
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const wallet = _.find(wallet => wallet.walletCurrency === externalCryptoCode &&
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wallet.id === galoyAccount.defaultWalletId &&
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wallet.id === account.walletId)(galoyAccount.wallets)
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return newOnChainAddress(wallet.id, account.apiSecret, account.endpoint)
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.then(onChainAddress => [onChainAddress, wallet.balance, wallet.pendingIncomingBalance])
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})
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.then(([onChainAddress, balance, pendingIncomingBalance]) => {
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return {
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fundingPendingBalance: new BN(pendingIncomingBalance),
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fundingConfirmedBalance: new BN(balance),
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fundingAddress: onChainAddress
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}
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})
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}
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function cryptoNetwork (account, cryptoCode, settings, operatorId) {
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return checkCryptoCode(cryptoCode)
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.then(() => account.environment === 'test' ? 'test' : 'main')
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}
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function checkBlockchainStatus (cryptoCode) {
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return checkCryptoCode(cryptoCode)
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.then(() => Promise.resolve('ready'))
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}
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module.exports = {
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NAME,
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balance,
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sendCoins,
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newAddress,
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getStatus,
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newFunding,
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cryptoNetwork,
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checkBlockchainStatus,
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sendProbeRequest,
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probeLN
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}
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