[SER-1505] Adding limit to digits behind the comma - Alerts Mail Notifications

plugins/alerts/api/parts/common-lib.js

@@ -170,10 +170,10 @@ async function compileEmail(result) {
     const host = await new Promise((res, rej) => mail.lookup((err, _host) => err ? rej(err) : res(_host)));
     const metrics = [];
     if (metricValue) {
-        metrics.push({ key: "Value now", value: metricValue });
+        metrics.push({ key: "Value now", value: formatMetricValue(metricValue) });
     }
     if (metricValueBefore) {
-        metrics.push({ key: "Value before", value: metricValueBefore });
+        metrics.push({ key: "Value before", value: formatMetricValue(metricValueBefore) });
     }
     return EMAIL_TEMPLATE({
         title: `Countly Alert`,
@@ -189,6 +189,25 @@ async function compileEmail(result) {
         }]
     });
 }
+/**
+ * Formats the metric value to ensure it maintains its type.
+ * If the value is a number, it rounds to 2 decimal places if necessary.
+ * Otherwise, it returns the value as is.
+ * 
+ * @param {number|string} value - The value to be formatted.
+ * @returns {number|string} The formatted value, maintaining the original type.
+ */
+function formatMetricValue(value) {
+    if (typeof value === 'number' && value === parseFloat(value.toFixed(2))) {
+        return value;
+    }
+    else if (typeof value === 'number') {
+        return parseFloat(value.toFixed(2));
+    }
+    else {
+        return value;
+    }
+}
 
 /**
  * Starts triggering alerts matched with their conditions.