modify notification email subject

app/helpers/emailContentGenerator.js

@@ -7,7 +7,7 @@ const generateEmailFooter = searchRequestId => {
   return `<div>Ako želite prestati dobijati obavještenja za ovu pretragu, <a href="${APP_URL}/odjava/${searchRequestId}">odjavite ovdje</a></div>
      <div>Ako želite pogledati ili promijeniti uslove za ovu pretragu, <a href="${APP_URL}/pregled/${searchRequestId}">pogledajte ovdje</a></div>
      <br/> 
-     <strong>Vaš,<br/>Javimi tim</strong>`;
+     <strong>Vaš,<br/>Kivi tim</strong>`;
 };
 
 const generateRealEstateLinks = realEstates => {
@@ -82,7 +82,32 @@ const generateNewSearchRequestEmail = (searchRequest, matchingRealEstates) => {
   ${emailFooter}`;
 };
 
+const generateEmailSubject = (numberOfRealEstates, singleRealEstateTitle) => {
+  if (numberOfRealEstates === 1) {
+    return `Kivi: ${singleRealEstateTitle}`;
+  }
+
+  const leastSignificantDigit = numberOfRealEstates % 10;
+  const numberWithoutLastDigit = Math.floor(numberOfRealEstates / 10);
+  const secondLeastSignificantDigit = numberWithoutLastDigit % 10;
+
+  if (leastSignificantDigit === 1 && secondLeastSignificantDigit !== 1) {
+    return `Kivi : ${numberOfRealEstates} nova nekretnina`;
+  }
+
+  if (
+    leastSignificantDigit >= 2 &&
+    leastSignificantDigit <= 4 &&
+    secondLeastSignificantDigit !== 1
+  ) {
+    return `Kivi: ${numberOfRealEstates} nove nekretnine`;
+  }
+
+  return `Kivi: ${numberOfRealEstates} novih nekretnina`;
+};
+
 module.exports = {
   generateNotificationEmail,
-  generateNewSearchRequestEmail
+  generateNewSearchRequestEmail,
+  generateEmailSubject
 };