v12.0.0 - initial commit

packages/server/lib/cash-out/cash-out-low.js

@@ -0,0 +1,98 @@
+const _ = require('lodash/fp')
+const pgp = require('pg-promise')()
+
+const helper = require('./cash-out-helper')
+const { anonymousCustomer } = require('../constants')
+
+const toDb = helper.toDb
+const toObj = helper.toObj
+
+const UPDATEABLE_FIELDS = [
+  'txHash',
+  'txVersion',
+  'status',
+  'dispense',
+  'dispenseConfirmed',
+  'notified',
+  'redeem',
+  'phone',
+  'error',
+  'swept',
+  'publishedAt',
+  'confirmedAt',
+  'errorCode',
+  'receivedCryptoAtoms',
+  'walletScore',
+  'customerId',
+]
+
+module.exports = { upsert, update, insert }
+
+function upsert(t, oldTx, tx) {
+  if (!oldTx) {
+    return insert(t, tx).then(newTx => [oldTx, newTx])
+  }
+
+  return update(t, tx, diff(oldTx, tx)).then(newTx => [
+    oldTx,
+    newTx,
+    tx.justAuthorized,
+  ])
+}
+
+function insert(t, tx) {
+  const dbTx = toDb(tx)
+
+  const sql = pgp.helpers.insert(dbTx, null, 'cash_out_txs') + ' returning *'
+  return t.one(sql).then(toObj)
+}
+
+function update(t, tx, changes) {
+  if (_.isEmpty(changes)) return Promise.resolve(tx)
+
+  const dbChanges = toDb(changes)
+  const sql =
+    pgp.helpers.update(dbChanges, null, 'cash_out_txs') +
+    pgp.as.format(' where id=$1', [tx.id])
+
+  const newTx = _.merge(tx, changes)
+
+  return t.none(sql).then(() => newTx)
+}
+
+function diff(oldTx, newTx) {
+  let updatedTx = {}
+
+  UPDATEABLE_FIELDS.forEach(fieldKey => {
+    if (oldTx && _.isEqualWith(nilEqual, oldTx[fieldKey], newTx[fieldKey]))
+      return
+
+    // We never null out an existing field
+    if (oldTx && _.isNil(newTx[fieldKey]))
+      return (updatedTx[fieldKey] = oldTx[fieldKey])
+
+    switch (fieldKey) {
+      case 'customerId':
+        if (oldTx.customerId === anonymousCustomer.uuid) {
+          return (updatedTx['customerId'] = newTx['customerId'])
+        }
+        return
+      // prevent dispense changing from 'true' to 'false'
+      case 'dispense':
+        if (!oldTx.dispense) {
+          return (updatedTx[fieldKey] = newTx[fieldKey])
+        }
+        return
+      default:
+        return (updatedTx[fieldKey] = newTx[fieldKey])
+    }
+  })
+
+  return updatedTx
+}
+
+function nilEqual(a, b) {
+  if (_.isNil(a) && _.isNil(b)) return true
+
+  return undefined
+}