Add modify notification functionality

MMM-HomeAutomationNotifications.js

@@ -10,6 +10,7 @@ Module.register("MMM-HomeAutomationNotifications", {
 	requiresVersion: "2.12.0",
 
 	notifications: [],
+	id: 1,
 
 	defaults: {
 		max: 5,
@@ -48,23 +49,54 @@ Module.register("MMM-HomeAutomationNotifications", {
 
 	socketNotificationReceived: function(notification, payload) {
 		var self = this;
+		var timestamp = moment();
+		var duration = moment.duration(this.config.duration, "m");
 
 		if (notification === "HOME_AUTOMATION_NOTIFICATION") {
-			var timestamp = moment();
-			var duration = moment.duration(this.config.duration, "m");
+			var id = self.generateId();
+
 			self.notifications.push({
+				id: id,
 				type: payload.type,
 				message: payload.message,
 				timestamp: timestamp.toISOString(),
 				expiration: timestamp.add(duration).toISOString()
 			});		
-
+	
 			while (self.notifications.length > self.config.max) {
 				self.notifications.shift();
 			}
 
-			self.updateDom(self.config.animationSpeed);
+			self.sendSocketNotification("HOME_AUTOMATION_NOTIFICATION_ID", id);
+		} else if (notification === "HOME_AUTOMATION_NOTIFICATION_UPDATE") {
+			var i = self.notifications.findIndex(x => x.id === payload.id);
+			self.notifications[i] = {
+				id: payload.id,
+				type: payload.type,
+				message: payload.message,
+				timestamp: timestamp.toISOString(),
+				expiration: timestamp.add(duration).toISOString()
+			};
+		} else if (notification === "HOME_AUTOMATION_NOTIFICATION_DELETE") {
+			for (i = self.notifications.length - 1; i >= 0; i--) {
+				if (self.notifications[i].id == payload.id) {
+					self.notifications.splice(i, 1);
+				}
+			}
+		}
+
+		self.updateDom(self.config.animationSpeed);
+	},
+
+	generateId: function() {
+		var self = this;
+
+		var id = self.id++;
+		if (self.id > 100) {
+			self.id = 1;
 		}
+
+		return id;
 	},
 
 	getDom: function() {

README.md

@@ -45,6 +45,14 @@ Notifications can be sent to the module with an HTTP POST request to this URL:
 Example request:
 `POST http://magicmirror:8080/MMM-HomeAutomationNotifications?type=WARNING&message=Front%20door%20unlocked`
 
+The server will respond to the request with an ID value for the notification that was created. This value can be used in subsequent requests to update or delete the notification.
+
+A notification can be updated with an HTTP PUT request to this URL:
+`PUT http://<SERVER-ADDRESS>:<PORT>/MMM-HomeAutomationNotifications?id=<ID>&type=<TYPE>&message=<MESSAGE>`
+
+A notificaiton can be deleted with an HTTP DELETE request to this URL:
+`DELETE http://<SERVER-ADDRESS>:<PORT>/MMM-HomeAutomationNotifications?id=<ID>`
+
 ## Configuration options
 
 The following properties can be configured:

node_helper.js

@@ -8,28 +8,68 @@
 const NodeHelper = require("node_helper");
 
 module.exports = NodeHelper.create({
+	idPromise: null,
 
 	socketNotificationReceived: function(notification, payload) {
-		this.sendSocketNotification("CONNECTED");
+		var self = this;
+
+		self.sendSocketNotification("CONNECTED");
+
+		if (notification === "HOME_AUTOMATION_NOTIFICATION_ID") {
+			self.idPromise(payload);
+		}
 	},
 
 	start: function() {
 		var self = this;
 
 		var types = ["INFO", "WARNING", "ERROR"];
-		self.expressApp.post('/MMM-HomeAutomationNotifications', function (req, res) {
+		self.expressApp.post("/MMM-HomeAutomationNotifications", (req, res) => {
 			if (!req.query.type) {
-				res.status(400).send("Query parameter type is required!");
+				res.status(400).json({ error: "Query parameter type is required!" });
 			} else if (!types.includes(req.query.type)) {
-				res.status(400).send("Query parameter type value is invalid!");
+				res.status(400).json({ error: "Query parameter type value is invalid!" });
 			} else if (!req.query.message) {
-				res.status(400).send("Query parameter message is required!");
+				res.status(400).json({ error: "Query parameter message is required!" });
 			} else {
-				self.sendSocketNotification("HOME_AUTOMATION_NOTIFICATION", {
+				new Promise((resolve, reject) => {
+					self.idPromise = resolve;
+					self.sendSocketNotification("HOME_AUTOMATION_NOTIFICATION", {
+						type: req.query.type,
+						message: req.query.message
+					});
+				}).then((id) => {
+					res.status(201).json({ id: id });
+				});
+			}
+		});
+
+		self.expressApp.put("/MMM-HomeAutomationNotifications", (req, res) => {
+			if (!req.query.id) {
+				res.status(400).json({ error: "Query parameter id is required!" });
+			} else if (!req.query.type) {
+				res.status(400).json({ error: "Query parameter type is required!" });
+			} else if (!types.includes(req.query.type)) {
+				res.status(400).json({ error: "Query parameter type value is invalid!" });
+			} else if (!req.query.message) {
+				res.status(400).json({ error: "Query parameter message is required!" });
+			} else {
+				self.sendSocketNotification("HOME_AUTOMATION_NOTIFICATION_UPDATE", {
+					id: req.query.id,
 					type: req.query.type,
 					message: req.query.message
 				});
+				res.status(204).end();
+			}
+		});
 
+		self.expressApp.delete("/MMM-HomeAutomationNotifications", (req, res) => {
+			if (!req.query.id) {
+				res.status(400).json({ error: "Query parameter id is required!" });
+			} else {
+				self.sendSocketNotification("HOME_AUTOMATION_NOTIFICATION_DELETE", {
+					id: req.query.id
+				});
 				res.status(204).end();
 			}
 		});