chore: use monorepo organization

packages/server/lib/tx-batching.js

@@ -0,0 +1,79 @@
+const _ = require('lodash/fp')
+const pgp = require('pg-promise')()
+const uuid = require('uuid')
+
+const BN = require('./bn')
+const db = require('./db')
+
+function addTransactionToBatch (tx) {
+  const sql = `SELECT * FROM transaction_batches WHERE crypto_code=$1 AND status='open' ORDER BY created_at DESC LIMIT 1`
+  const sql2 = `UPDATE cash_in_txs SET batch_id=$1 WHERE id=$2`
+
+  return db.oneOrNone(sql, [tx.cryptoCode])
+    .then(batch => {
+      if (_.isNil(batch)) {
+        return db.tx(t => {
+          const newBatchId = uuid.v4()
+          const q1 = t.none(`INSERT INTO transaction_batches (id, crypto_code) VALUES ($1, $2)`, [newBatchId, tx.cryptoCode])
+          const q2 = t.none(sql2, [newBatchId, tx.id])
+
+          return t.batch([q1, q2])
+        })
+      }
+      return db.none(sql2, [batch.id, tx.id])
+    })
+}
+
+function closeTransactionBatch (batch) {
+  const sql = `UPDATE transaction_batches SET status='ready', closed_at=now() WHERE id=$1`
+
+  return db.none(sql, [batch.id])
+}
+
+function confirmSentBatch (batch, tx) {
+  return db.tx(t => {
+    const q1 = t.none(`UPDATE transaction_batches SET status='sent', error_message=NULL WHERE id=$1`, [batch.id])
+    const q2 = t.none(`UPDATE cash_in_txs SET tx_hash=$1, fee=$2, send=true, send_confirmed=true, send_time=now(), send_pending=false, error=NULL, error_code=NULL WHERE batch_id=$3`, [tx.txid, tx.fee.toString(), batch.id])
+
+    return t.batch([q1, q2])
+  })
+}
+
+function setErroredBatch (batch, errorMsg) {
+  const sql = `UPDATE transaction_batches SET status='failed', error_message=$1 WHERE id=$2`
+
+  return db.none(sql, [errorMsg, batch.id])
+}
+
+function getBatchTransactions (batch) {
+  const sql = `SELECT * FROM cash_in_txs WHERE batch_id=$1`
+  return db.manyOrNone(sql, [batch.id])
+    .then(res => _.map(_.mapKeys(_.camelCase), res))
+}
+
+function getBatchesByStatus (statuses) {
+  const sql = `SELECT *, EXTRACT(EPOCH FROM (now() - created_at)) as time_elapsed FROM transaction_batches WHERE status in ($1^)`
+
+  return db.manyOrNone(sql, [_.map(pgp.as.text, statuses).join(',')])
+}
+
+function getOpenBatchCryptoValue (cryptoCode) {
+  const sql = `SELECT * FROM transaction_batches WHERE crypto_code=$1 AND status='open' ORDER BY created_at DESC LIMIT 1`
+
+  return db.oneOrNone(sql, [cryptoCode])
+    .then(batch => {
+      if (_.isNil(batch)) return Promise.resolve([])
+      return db.any(`SELECT * FROM cash_in_txs WHERE batch_id=$1`, [batch.id])
+    })
+    .then(txs => _.reduce((acc, tx) => acc.plus(tx.crypto_atoms), BN(0), txs))
+}
+
+module.exports = {
+  addTransactionToBatch,
+  closeTransactionBatch,
+  confirmSentBatch,
+  setErroredBatch,
+  getBatchTransactions,
+  getBatchesByStatus,
+  getOpenBatchCryptoValue
+}