Any send email if first incident of month

New db function for getting all events for this month that also have
isOk as false. We use this to resolve into notifyIfDown function if this
is first incident this period.

src/db.js

@@ -42,10 +42,25 @@ const getAlternatingEventStatuses = () => Event.find().exec()
 const getEventStatus = () => Event.find().select('date isOk').exec()
   .then(events => events.reverse())
 
+const anyDowntimeThisCalendarMonth = async () => {
+  const today = new Date();
+  const year = today.getFullYear()
+  const month = today.getMonth();
+
+  const query = {
+    "date": { "$gte": new Date(year, month, 1) },
+    "isOk": false
+  }
+
+  return Event.find(query)
+    .then(errorsThisMonth => errorsThisMonth.length > 0)
+}
+
 module.exports = {
   commitServiceEventToDatabase,
   getAllEvents,
   getEventById,
   getAlternatingEventStatuses,
-  getEventStatus
+  getEventStatus,
+  anyDowntimeThisCalendarMonth
 }

src/index.js

@@ -6,7 +6,11 @@ const config = require('../config')
 const Mail = require( './mail.js');
 const mail = new Mail();
 
-const { commitServiceEventToDatabase, getAllEvents } = require('./db.js');
+const {
+  commitServiceEventToDatabase,
+  getAllEvents,
+  anyDowntimeThisCalendarMonth
+} = require('./db.js');
 
 let browser = undefined;
 if (config.debug == false)
@@ -118,6 +122,8 @@ function closeBrowserAndExit(status=0) {
   process.exit(status);
 }
 
+const resolveIfNoDowntimeYetThisMonth = msg => anyDowntimeThisCalendarMonth()
+  .then(anyDowntime => anyDowntime == false ? Promise.resolve(msg) : Promise.reject())
 
 function run() {
   webscraper(config.url)
@@ -125,8 +131,9 @@ function run() {
     .then(page => savePageToPDF(page))
     .then(page => getServiceMessages(page))
     .then(serviceMessages => commitServiceEventToDatabase(serviceMessages, pdfFilename))
+    .then(serviceMessages => resolveIfNoDowntimeYetThisMonth(serviceMessages))
     .then(serviceMessages => notifyIfDown(serviceMessages))
-    .then(closeBrowserAndExit)
+    .finally(closeBrowserAndExit)
 }
 
 run();