database.js

var mongoose = require('mongoose');

const config = require('./config');

function init() {
	const db_url = config.config().dbHost ? 'mongodb://' + config.config().dbHost + '/dyndns-server' : 'mongodb://localhost/dyndns-server';

	mongoose.connect(db_url);
}

const Domain = mongoose.model('domain', {
	name: String,
	token: String,
	ip: String
});

function domainExists(domain) {
	return new Promise((resolve, reject) => {
		Domain.exists({ name: domain })
			.catch((err) => resolve(true))
			.then((result) => resolve(result));
	});
}

function registerDomain(domain, token) {
	return new Promise((resolve, reject) => {
		const record = new Domain({
			name: domain,
			token: token,
			ip: '0.0.0.0'
		});
		record.save()
			.catch((err) => reject())
			.then(() => resolve());
	});
}

function getDomain(token) {
	return new Promise((resolve, reject) => {
		Domain.findOne({ token: token })
			.catch((err) => reject())
			.then((domain) => resolve(domain));
	});
}

function updateDomain(domain, token, ip) {
	return new Promise((resolve, reject) => {
		Domain.updateOne({ token: token }, { name: domain, token: token, ip: ip })
			.catch((err) => reject())
			.then((d) => resolve());
	})
}

module.exports = {
	init: init,
	domainExists: domainExists,
	registerDomain: registerDomain,
	getDomain: getDomain,
	updateDomain: updateDomain
}