feat: sms notification for usa carriers (#40)

Co-authored-by: Jef LeCompte <jeffreylec@gmail.com>

src/notification/sms.ts

@@ -0,0 +1,49 @@
+import nodemailer from 'nodemailer';
+import Mail from 'nodemailer/lib/mailer';
+import {Config} from '../config';
+import {Logger} from '../logger';
+
+const subject = 'NVIDIA - BUY NOW';
+
+enum carrierAddress {
+	sprint = 'messaging.sprintpcs.com',
+	verizon = 'vtext.com',
+	tmobile = 'tmomail.net',
+	att = 'txt.att.net'
+}
+
+const transporter = nodemailer.createTransport({
+	service: 'gmail',
+	auth: {
+		user: Config.email.username,
+		pass: Config.email.password
+	}
+});
+
+const mailOptions: Mail.Options = {
+	from: Config.email.username,
+	to: generateAddress(),
+	subject
+};
+
+export default function sendSMS(text: string) {
+	mailOptions.text = text;
+
+	transporter.sendMail(mailOptions, (error, info) => {
+		if (error) {
+			Logger.error(error);
+		} else {
+			// eslint-disable-next-line @typescript-eslint/restrict-template-expressions
+			Logger.info(`✔ email sent: ${info.response}`);
+		}
+	});
+}
+
+function generateAddress() {
+	for (const carrier of Object.keys(carrierAddress)) {
+		if (Config.phone.carrier && carrier === Config.phone.carrier.toLowerCase()) {
+			// @ts-expect-error
+			return [Config.phone.number, carrierAddress[carrier]].join('@');
+		}
+	}
+}