Add DB operations for notifications

Server/db/mongo/modules/notificationModule.js

@@ -0,0 +1,41 @@
+const Notification = require("../../../models/Notification");
+const Notification = require("../../../models/Notification");
+
+/**
+ * Creates a new notification.
+ * @param {Object} notificationData - The data for the new notification.
+ * @param {mongoose.Types.ObjectId} notificationData.monitorId - The ID of the monitor.
+ * @param {string} notificationData.type - The type of the notification (e.g., "email", "sms").
+ * @param {string} [notificationData.address] - The address for the notification (if applicable).
+ * @param {string} [notificationData.phone] - The phone number for the notification (if applicable).
+ * @returns {Promise<Object>} The created notification.
+ * @throws Will throw an error if the notification cannot be created.
+ */
+const createNotification = async (notificationData) => {
+  try {
+    const notification = await new Notification({ ...notificationData }).save();
+    return notification;
+  } catch (error) {
+    throw error;
+  }
+};
+
+/**
+ * Retrieves notifications by monitor ID.
+ * @param {mongoose.Types.ObjectId} monitorId - The ID of the monitor.
+ * @returns {Promise<Array<Object>>} An array of notifications.
+ * @throws Will throw an error if the notifications cannot be retrieved.
+ */
+const getNotificationsByMonitorId = async (monitorId) => {
+  try {
+    const notifications = await Notification.find({ monitorId });
+    return notifications;
+  } catch (error) {
+    throw error;
+  }
+};
+
+module.exports = {
+  createNotification,
+  getNotificationsByMonitorId,
+};