import { User } from './schema';
import * as uuid from 'uuid';

const API_ENDPOINT = 'https://discord.com/api/v6';

const axios = require('axios').default;

export function run(app) {
	app.get('/discordauth', async (req, res) => {
		const code = req.query.code;

		if (code) {
			try {
				const data = new URLSearchParams({
					client_id: process.env.DISCORD_OAUTH_CLIENTID,
					client_secret: process.env.DISCORD_OAUTH_CLIENTSECRET,
					grant_type: 'authorization_code',
					code: code,
					redirect_uri: 'http://localhost:8080/discordauth',
					scope: 'identify'
				});
	
				const postRes = await axios.post(`${API_ENDPOINT}/oauth2/token`, data, {
					headers: {
						'Content-Type': 'application/x-www-form-urlencoded'
					}
				});

				const userInfo = await axios.get(`${API_ENDPOINT}/users/@me`, {
					headers: {
						authorization: `${postRes.data.token_type} ${postRes.data.access_token}`
					}
				});

				const users = await User.find({id: userInfo.id});
				let userUuid = '';
				if (users.length === 0) {
					const newUser = new User({
						id: userInfo.id,
						createdAt: new Date(),

						username: userInfo.data.username,
						discriminator: userInfo.data.discriminator,
						avatar: userInfo.data.avatar,

						uuid: uuid.v4(),
					});

					userUuid = newUser.get('uuid');
					newUser.save();
				} else {
					userUuid = users[0].get('uuid');
				}

				req.session!.discord = userInfo.data;
				req.session!.uuid = userUuid;
				res.send(`hi ${userInfo.data.username}#${userInfo.data.discriminator}<br><img src="https://media.discordapp.net/avatars/${userInfo.data.id}/${userInfo.data.avatar}.png"><br>ur useruuid is ${userUuid}`);
			} catch(err) {
				res.send(`whoooops<br>${err}`);
			}
		} else {
			res.send(`<a href="https://discord.com/api/oauth2/authorize?client_id=${process.env.DISCORD_OAUTH_CLIENTID}&redirect_uri=http%3A%2F%2Flocalhost%3A8080%2Fdiscordauth&response_type=code&scope=identify">Click here!!</a>`);
		}
	});
}