refactor: move up dateFormat method

lib/logs.js

@@ -1,4 +1,5 @@
 const _ = require('lodash/fp')
+const moment = require('moment')
 
 const db = require('./db')
 const pgp = require('pg-promise')()
@@ -109,4 +110,18 @@ function simpleGetMachineLogs (deviceId, from = new Date(0).toISOString(), until
     .then(_.map(_.mapKeys(_.camelCase)))
 }
 
-module.exports = { getUnlimitedMachineLogs, getMachineLogs, simpleGetMachineLogs, update, getLastSeen, clearOldLogs }
+function logDateFormat (timezone, logs, fields) {
+  const offset = timezone.split(':')[1]
+
+  return _.map(log => {
+    const values = _.map(field => moment.utc(log[field]).utcOffset(parseInt(offset)).format('YYYY-MM-DDTHH:mm:ss.SSS'), fields)
+    const fieldsToOverride = _.zipObject(fields, values)
+
+    return {
+      ...log,
+      ...fieldsToOverride
+    }
+  }, logs)
+}
+
+module.exports = { getUnlimitedMachineLogs, getMachineLogs, simpleGetMachineLogs, update, getLastSeen, clearOldLogs, logDateFormat }