require('dotenv').config()

const validateToken	= require('./validateToken')
const refreshToken	= require('./refreshToken')
const writeEnv		= require('./writeEnv')

let client_id = process.env.TWITCH_APP_ID
let client_secret = process.env.TWITCH_APP_SECRET

module.exports = async function (access_token) {

	// Check if channel_access_token is valid
	if (!await validateToken(access_token)) {

		// If not, refresh it
		let result = await refreshToken(client_id, client_secret, access_token)
		if (result.status) return `Can't refresh channel_access_token: ${result.message}`

		let [channel_access_token, channel_refresh_token] = result
		writeEnv('TWITCH_CHANNEL_ACCESS_TOKEN', channel_access_token)
		writeEnv('TWITCH_CHANNEL_REFRESH_TOKEN', channel_refresh_token)

		let channel_name = await getUserInfo(client_id, channel_access_token).login
		writeEnv('TWITCH_CHANNEL_USERNAME', channel_name)
	}
	return [channel_access_token, channel_name]
}