fix(pushover): add expire and retry

Fixes #983

src/config.ts

@@ -241,7 +241,9 @@ const notifications = {
 	playSound: envOrString(process.env.PLAY_SOUND),
 	pushbullet: envOrString(process.env.PUSHBULLET),
 	pushover: {
+		expire: envOrNumber(process.env.PUSHOVER_EXPIRE),
 		priority: envOrNumber(process.env.PUSHOVER_PRIORITY),
+		retry: envOrNumber(process.env.PUSHOVER_RETRY),
 		token: envOrString(process.env.PUSHOVER_TOKEN),
 		username: envOrString(process.env.PUSHOVER_USER)
 	},

src/notification/pushover.ts

@@ -4,20 +4,30 @@ import Push, {PushoverMessage} from 'pushover-notifications';
 import {config} from '../config';
 
 const pushover = config.notifications.pushover;
-const push = new Push({
-	token: pushover.token,
-	user: pushover.username
-});
 
 export function sendPushoverNotification(link: Link, store: Store) {
 	if (pushover.token && pushover.username) {
 		logger.debug('↗ sending pushover message');
 
-		const message: PushoverMessage = {
-			message: link.cartUrl ? link.cartUrl : link.url,
-			priority: pushover.priority,
-			title: Print.inStock(link, store)
-		};
+		const push = new Push({
+			token: pushover.token,
+			user: pushover.username
+		});
+
+		const message: PushoverMessage =
+			pushover.priority < 2
+				? {
+						message: link.cartUrl ? link.cartUrl : link.url,
+						priority: pushover.priority,
+						title: Print.inStock(link, store)
+				  }
+				: {
+						expire: pushover.expire,
+						message: link.cartUrl ? link.cartUrl : link.url,
+						priority: pushover.priority,
+						retry: pushover.retry,
+						title: Print.inStock(link, store)
+				  };
 
 		push.send(message, (error: Error) => {
 			if (error) {

src/types/pushover-notifications.d.ts

@@ -37,15 +37,17 @@ declare module 'pushover-notifications' {
 	}
 
 	export interface PushoverMessage {
-		message: string;
-		file?: string | {name: string; data: string};
 		device?: string;
+		expire?: number;
+		file?: string | {name: string; data: string};
+		message: string;
+		priority?: number;
+		retry?: number;
+		sound?: Sound;
+		timestamp?: number;
 		title?: string;
 		url?: string;
 		url_title?: string;
-		priority?: number;
-		sound?: Sound;
-		timestamp?: number;
 	}
 
 	export class Pushover {