const axios = require('axios')
const express = require('express')
//const open = require('open')
const open = (...args) => import('open').then(({default: open}) => open(...args))

module.exports = async (client_id, client_secret) => {
	/*
	return await axios.post('https://id.twitch.tv/oauth2/token', {
		client_id,
		client_secret,
		grant_type: 'client_credentials',
		scope: 'channel:manage:redemptions'
	}).then(response => {
		console.log(response.data)
		if (response.data.token_type === 'bearer') return response.data.access_token
	}).catch(error => { console.log(error) })
	*/

	// Listen on port 3000 for twitch to send us the access token
	const app = express()
	const port = 3000

	app.listen(port, () => { console.log(`Example app listening at http://localhost:${port}`) })

	// Open the browser to the twitch login page
	await open(`https://id.twitch.tv/oauth2/authorize?client_id=${client_id}&redirect_uri=http://localhost:3000&response_type=code&scope=channel:manage:redemptions`)

	// Wait for the access token to be sent to us
	let code = await new Promise((resolve, reject) => {
		app.get('/', (req, res) => {
			console.log(req.query)
			res.send('Hello World!')
			resolve(req.query.code)
		})
	})

	// Use the access token to get the oauth token
	return await axios.post('https://id.twitch.tv/oauth2/token', {
		client_id,
		client_secret,
		code,
		grant_type: 'authorization_code',
		redirect_uri: 'http://localhost:3000'
	}).then(response => {
		console.log(response.data)
		if (response.data.token_type === 'bearer') return response.data.access_token
	}).catch(error => { console.log(error) })


}