refactor: lookup, rm defaults (#69)

prep work for #38

Signed-off-by: Jef LeCompte <jeffreylec@gmail.com>

src/notification/notification.ts

@@ -0,0 +1,26 @@
+import {Config} from '../config';
+import {sendEmail} from './email';
+import {sendSMS} from './sms';
+import {playSound} from './sound';
+import {sendSlackMessage} from './slack';
+
+export function sendNotification(cartUrl: string) {
+	if (Config.notifications.email.username && Config.notifications.email.password) {
+		sendEmail(cartUrl);
+	}
+
+	if (Config.notifications.slack.channel && Config.notifications.slack.token) {
+		sendSlackMessage(cartUrl);
+	}
+
+	if (Config.notifications.phone.number) {
+		const carrier = Config.notifications.phone.carrier.toLowerCase();
+		if (carrier && Config.notifications.phone.availableCarriers.has(carrier)) {
+			sendSMS(cartUrl);
+		}
+	}
+
+	if (Config.notifications.playSound) {
+		playSound();
+	}
+}