for (let condition of ['unhandledRejection', 'uncaughtException'])
	process.on(condition, console.error)

const morgan = require('morgan')
const express = require('express')
const puppeteer = require('puppeteer')

const cache = new Map()

const app = express()
app.set('json spaces', 4)
app.use(morgan('dev'))
app.use(async (_, __, next) => {
	for (let [url, data] of cache) {
		const timeReset = 10 * 60 * 1000 // 10 min
		if (Date.now() - data.lastFetch > timeReset) {
			// await data.close()
			cache.delete(url)
		}
	}
	next()
})

app.all('/', (_, res) => {
	res.json({
		creator: '@rippanteq7',
		message: 'Hello World',
		uptime: new Date(process.uptime() * 1000).toUTCString().split(' ')[4]
	})
})

app.get('/api', async (req, res) => {
	try {
		const { url } = req.query
		if (!url) return res.json({ success: false, message: 'Input parameter url' })
		if (!/https?:\/\//.test(url)) return res.json({ success: false, message: 'Invalid url' })
		
		const data = cache.has(url) ? cache.get(url) : await ssyoutube(url)
		
		data.message ?
			res.json({ success: false, message: data.message, result: data }) :
			res.json({ success: true, result: data })
	} catch (e) {
		console.log(e)
		e = String(e)
		res.json({
			error: true,
			message: e === '[object Object]' ? 'Internal Server Error' : e
		})
	}
})

const PORT = process.env.PORT || 7860
app.listen(PORT, () => console.log('App running on port', PORT))

async function ssyoutube(url) {
	const browser = await puppeteer.launch({
		headless: 'new',
		executablePath: puppeteer.executablePath(),
		args: ['--no-sandbox']
	})
	
	const page = await browser.newPage()

	await page.goto('https://ssyoutube.com/')
	await page.type('#id_url', url)
	await page.click('#search')
	
	const response = await page.waitForResponse(res =>
		res.url().includes('convert') && res.request().method() === 'POST')
	
	const json = await response.json()
	cache.set(url, Object.assign(json, { lastFetch: Date.now() }))
	await browser.close()
	
	return json
}