91 lines
2.5 KiB
JavaScript
91 lines
2.5 KiB
JavaScript
const _ = require('lodash/fp')
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const { ALL_CRYPTOS } = require('@lamassu/coins')
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const configManager = require('./new-config-manager')
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const ccxt = require('./plugins/exchange/ccxt')
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const mockExchange = require('./plugins/exchange/mock-exchange')
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const accounts = require('./new-admin/config/accounts')
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function lookupExchange(settings, cryptoCode) {
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const exchange = configManager.getWalletSettings(
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cryptoCode,
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settings.config,
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).exchange
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if (exchange === 'no-exchange') return null
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return exchange
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}
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function fetchExchange(settings, cryptoCode) {
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return Promise.resolve().then(() => {
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const exchangeName = lookupExchange(settings, cryptoCode)
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if (exchangeName === 'mock-exchange')
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return { exchangeName, account: { currencyMarket: 'EUR' } }
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if (!exchangeName) throw new Error('No exchange set')
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const account = settings.accounts[exchangeName]
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return { exchangeName, account }
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})
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}
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function buy(settings, tradeEntry) {
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const { cryptoAtoms, fiatCode, cryptoCode } = tradeEntry
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return fetchExchange(settings, cryptoCode).then(r => {
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if (r.exchangeName === 'mock-exchange') {
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return mockExchange.buy(cryptoAtoms, fiatCode, cryptoCode)
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}
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return ccxt.trade('buy', r.account, tradeEntry, r.exchangeName)
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})
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}
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function sell(settings, tradeEntry) {
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const { cryptoAtoms, fiatCode, cryptoCode } = tradeEntry
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return fetchExchange(settings, cryptoCode).then(r => {
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if (r.exchangeName === 'mock-exchange') {
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return mockExchange.sell(cryptoAtoms, fiatCode, cryptoCode)
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}
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return ccxt.trade('sell', r.account, tradeEntry, r.exchangeName)
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})
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}
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function active(settings, cryptoCode) {
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return !!lookupExchange(settings, cryptoCode)
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}
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function getMarkets() {
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const filterExchanges = _.filter(
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it => it.class === 'exchange' && !it.dev && it.code !== 'no-exchange',
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)
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const availableExchanges = _.map(
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it => it.code,
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filterExchanges(accounts.ACCOUNT_LIST),
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)
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const fetchMarketForExchange = exchange =>
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ccxt
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.getMarkets(exchange, ALL_CRYPTOS)
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.then(markets => ({ exchange, markets }))
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.catch(error => ({
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exchange,
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markets: [],
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error: error.message,
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}))
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const transformToObject = _.reduce(
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(acc, { exchange, markets }) => ({
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...acc,
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[exchange]: markets,
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}),
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{},
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)
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const promises = _.map(fetchMarketForExchange, availableExchanges)
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return Promise.all(promises).then(transformToObject)
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}
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module.exports = {
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fetchExchange,
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buy,
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sell,
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active,
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getMarkets,
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}
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