chore: use monorepo organization

packages/server/lib/route-helpers.js

@@ -0,0 +1,101 @@
+const _ = require('lodash/fp')
+
+const db = require('./db')
+const dbm = require('./postgresql_interface')
+const T = require('./time')
+const BN = require('./bn')
+
+const TRANSACTION_EXPIRATION = T.day
+
+function httpError (msg, code) {
+  const err = new Error(msg)
+  err.name = 'HTTPError'
+  err.code = code || 500
+
+  return err
+}
+
+function stateChange (deviceId, deviceTime, rec) {
+  const event = {
+    id: rec.uuid,
+    deviceId: deviceId,
+    eventType: 'stateChange',
+    note: JSON.stringify({ state: rec.state, isIdle: rec.isIdle }),
+    deviceTime: deviceTime
+  }
+  return dbm.machineEvent(event)
+}
+
+function toCashOutTx (row) {
+  if (!row) return null
+
+  const keys = _.keys(row)
+  let newObj = {}
+
+  keys.forEach(key => {
+    const objKey = _.camelCase(key)
+    if (key === 'crypto_atoms' || key === 'fiat') {
+      newObj[objKey] = new BN(row[key])
+      return
+    }
+
+    newObj[objKey] = row[key]
+  })
+
+  return _.set('direction', 'cashOut', newObj)
+}
+
+function fetchEmailOrPhoneTx (data, type) {
+  const sql = `select * from cash_out_txs
+    where ${type === 'email' ? 'email' : 'phone'}=$1 and dispense=$2
+    and (extract(epoch from (now() - created))) * 1000 < $3`
+
+  const values = [data, false, TRANSACTION_EXPIRATION]
+
+  return db.any(sql, values)
+    .then(_.map(toCashOutTx))
+    .then(txs => {
+      const seenTxs = _.some(it => it.status !== 'notSeen', txs)
+      const confirmedTxs = txs.filter(tx => _.includes(tx.status, ['instant', 'confirmed']))
+      if (confirmedTxs.length > 0) {
+        const reducer = (acc, val) => {
+          return !acc || val.cryptoAtoms.gt(acc.cryptoAtoms) ? val : acc
+        }
+
+        const maxTx = _.reduce(reducer, null, confirmedTxs)
+
+        return maxTx
+      }
+
+      if (txs.length > 0 && !seenTxs) throw httpError('Transaction not seen', 411)
+      if (txs.length > 0 && seenTxs) throw httpError('Pending transactions', 412)
+      throw httpError('No transactions', 404)
+    })
+}
+function fetchEmailTx (email) {
+  return fetchEmailOrPhoneTx(email, 'email')
+}
+
+function fetchPhoneTx (phone) {
+  return fetchEmailOrPhoneTx(phone, 'phone')
+}
+
+function fetchStatusTx (txId, status) {
+  const sql = 'select * from cash_out_txs where id=$1'
+
+  return db.oneOrNone(sql, [txId])
+    .then(toCashOutTx)
+    .then(tx => {
+      if (!tx) throw httpError('No transaction', 404)
+      if (tx.status === status) throw httpError('Not Modified', 304)
+      return tx
+    })
+}
+
+module.exports = {
+  stateChange,
+  fetchPhoneTx,
+  fetchEmailTx,
+  fetchStatusTx,
+  httpError
+}