const { TelegramClient } = require("telegram");
const { StringSession } = require("telegram/sessions");
const input = require("input");

async function main () {
	const apiId = +(await input.text("Enter API_ID:"));
	if (Number.isNaN(apiId)) {
		throw new Error("Invalid API_ID. Must be integer");
	}
	const apiHash = await input.text("Enter API_HASH:");
	const stringSession = new StringSession("");
	
	const client = new TelegramClient(stringSession, apiId, apiHash, {
		connectionRetries: 5,
	});
	await client.start({
		phoneNumber: async () => await input.text("Please enter your number: "),
		password: async () => await input.password("Please enter your password: "),
		phoneCode: async () =>
			await input.text("Please enter the code you received: "),
		onError: (err) => console.log(err),
	});
	console.log("You should now be connected.");
	console.log("Your SESSION_ID:", client.session.save());
}

main().then(() => {
	console.log("Program finished");
	process.exit(0);
}).catch(err => {
	console.error(err);
	process.exit(-1);
});