const mongoose = require('mongoose');
const requireLogin = require('../middlewares/requireLogin');
const requireCredits = require('../middlewares/requireCredits');
const Mailer = require('../services/Mailer');
//create model of survey and update it
const Survey = mongoose.model('surveys');
const surveyTemplate = require('../services/emailTamplates/surveyTemplate');

module.exports = app => {
	app.post('/api/surveys', requireLogin, requireCredits, async (req, res) => {
		// is user logged in requireLogin
		// has enough credits requireCredits
		//pass these properties from front end
		const { title, subject, body, recipients } = req.body;
		const survey = new Survey({
			title,
			subject,
			body,
			dateSent: Date.now(),
			_user: req.user.id, //from mongo
			recipients: recipients.split('.').map(email => ({ email: email.trim() }))
		});
		//send email (data, template)
		const mailer = new Mailer(survey, surveyTemplate);
		try {
			await mailer.send();
			await survey.save();
			req.user.credits -= 1;
			const user = await req.user.save();
			res.send(user); // send back user model
		} catch (error) {
			res.status(422).send(err);
		}
	});
};