import bcrypt = require('bcrypt');
import crypto = require('crypto');
import { checkPassword } from './checkPassword';
import { User } from '../models/user';
import { v4 as uuid } from 'uuid';

/**
 * API endpoint for account creation.
 * @param req 
 * @param res 
 * @returns 
 */
export function authCreate(req, res) {
	const { displayname, email, password } = req.body;

	if (req.user)
		return res.status(200).json({
			error: 11
		});

	if (!displayname || !email || !password)
		return res.status(200).json({
			error: 2
		});
	
	if (!checkPassword(password))
		return res.status(200).json({
			error: 7
		});

	User.findOne({ email },  (err, user) => {
		if (err) {
			console.log(err);
			return res.status(200).json({
				error: 1
			});
		}

		if (user)
			return res.status(200).json({
				error: 11
			});
		
		bcrypt.hash(password, 10, (err, password) => {
			if (err) {
				console.log(err);
				return res.status(200).json({
					error: 1
				});
			}
			
			const newUserData = {
				displayname,
				email,
				password,
				username: crypto.randomBytes(8).toString('hex'),
				uuid: uuid(),
				apiKey: uuid(),
				apiToken: crypto.randomBytes(32).toString('hex'),
				following: [],
				followedBy: []
			};
			const newUser = new User(newUserData);

			newUser.save(err => {
				if (err) {
					console.log(err);
					res.status(200).json({
						error: 1
					});
				}

				req.login(newUserData).then(() => {
					res.json({
						error: 0
					});
				}).catch(err => {
					if (err) {
						console.log(err);
						res.status(200).json({
							error: 1
						});
					}
				});
			});
		});
	});
}