WIPP

lib/route-helpers.js

@@ -1,10 +1,21 @@
+const _ = require('lodash/fp')
 const R = require('ramda')
 
 const db = require('./db')
 const dbm = require('./postgresql_interface')
 const T = require('./time')
+const BN = require('./bn')
+
 const TRANSACTION_EXPIRATION = 2 * T.days
 
+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,
@@ -16,8 +27,34 @@ function stateChange (deviceId, deviceTime, rec) {
   return dbm.machineEvent(event)
 }
 
+function toObj (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] = BN(row[key])
+      return
+    }
+
+    newObj[objKey] = row[key]
+  })
+
+  return newObj
+}
+
 function fetchPhoneTx (phone) {
-  return dbm.fetchPhoneTxs(phone, TRANSACTION_EXPIRATION)
+  const sql = `select * from cash_out_txs
+    where phone=$1 and dispensed=$2
+    and (extract(epoch from (coalesce(confirmation_time, now()) - created))) * 1000 < $3`
+
+  const values = [phone, false, TRANSACTION_EXPIRATION]
+
+  return db.any(sql, values)
+  .then(_.map(toObj))
   .then(txs => {
     const confirmedTxs = txs.filter(tx => R.contains(tx.status, ['instant', 'confirmed']))
     if (confirmedTxs.length > 0) {
@@ -25,11 +62,23 @@ function fetchPhoneTx (phone) {
         return !acc || val.cryptoAtoms.gt(acc.cryptoAtoms) ? val : acc
       }, null, confirmedTxs)
 
-      return {tx: maxTx}
+      return maxTx
     }
 
-    if (txs.length > 0) return {pending: true}
-    return {}
+    if (txs.length > 0) throw httpError('Pending transactions', 412)
+    throw httpError('No transactions', 404)
+  })
+}
+
+function fetchStatusTx (txId, status) {
+  const sql = 'select * from cash_out_txs where id=$1'
+
+  return db.oneOrNone(sql, [txId, status])
+  .then(toObj)
+  .then(tx => {
+    if (!tx) throw httpError('No transaction', 404)
+    if (tx.status === status) throw httpError('Not Modified', 304)
+    return tx
   })
 }
 
@@ -37,4 +86,4 @@ function updateDeviceConfigVersion (versionId) {
   return db.none('update devices set user_config_id=$1', [versionId])
 }
 
-module.exports = {stateChange, fetchPhoneTx, updateDeviceConfigVersion}
+module.exports = {stateChange, fetchPhoneTx, fetchStatusTx, updateDeviceConfigVersion}