81 lines
2.4 KiB
JavaScript
81 lines
2.4 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(cryptoCode, settings.config).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()
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.then(() => {
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const exchangeName = lookupExchange(settings, cryptoCode)
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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)
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.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)
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.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(it => it.class === 'exchange' && !it.dev && it.code !== 'no-exchange')
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const availableExchanges = _.map(it => it.code, filterExchanges(accounts.ACCOUNT_LIST))
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const fetchMarketForExchange = exchange =>
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ccxt.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((acc, { exchange, markets }) => ({
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...acc,
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[exchange]: markets
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}), {})
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const promises = _.map(fetchMarketForExchange, availableExchanges)
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return Promise.all(promises)
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.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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