const { Client, LocalAuth } = require('whatsapp-web.js')
const qrcode = require('qrcode-terminal')

// Initialize client with session persistence
const client = new Client({
	authStrategy: new LocalAuth(), // Saves session so you don't need to scan QR every time
	puppeteer   : {
		headless: true,
		args    : ['--no-sandbox', '--disable-setuid-sandbox']
	}
})

// Generate QR in terminal
client.on('qr', (qr) => {
	console.log('\n📱 Scan this QR code with WhatsApp:')
	qrcode.generate(qr, { small: true })
})

// When client is ready
/*client.on('ready', () => {
 console.log('\n✅ Client is ready!')
 console.log('Listening for messages...')
 console.log('Use Ctrl+C to exit\n')
 })*/
client.on('ready', async () => {
	console.log('\n✅ Client is ready!')

	// Auto-reply to the last person who messaged you
	let lastContact = null
	var currentTimeAndDateTodayAsDutchh = new Date().toLocaleString('nl-NL', { timeZone: 'Europe/Amsterdam' })
	await sendMessage('31639266516@c.us', currentTimeAndDateTodayAsDutchh + 'Yoo toppertje 🎉!')

	client.on('message', (message) => {
		console.log(`📥 [${ message.from }] ${ message.body }`)
		lastContact = message.from.split('@')[0] // Extract number
		// Send after 10 seconds
		setTimeout(async () => {
			if (lastContact) {
				console.log(`\nSending test to ${ lastContact }...`)
				await sendMessage(lastContact, 'Yooo toppertje🎉!')
			} else
				console.log('No last contact found')
		}, 2000)
	})

})
// Listen for incoming messages
client.on('message', (message) => {
	console.log(`📥 [${ message.from }] ${ message.body || '(media message)' }`)

	// Auto-reply example
	if (message.body.toLowerCase() === 'ping') {
		message.reply('🏓 Pong!')
		console.log('   Replied with "Pong!"')
	}
})

// Function to send messages
const sendMessage = async (number, text) => {
	try {
		const chatId = number.includes('@c.us') ? number : `${ number }@c.us`
		await client.sendMessage(chatId, text)
		console.log(`✅ Sent to ${ number }: "${ text }"`)
		return true
	} catch (error) {
		console.error(`❌ Error sending to ${ number }:`, error.message)
		return false
	}
}

// Export for external use
module.exports = { client, sendMessage }

// Initialize client
client.initialize()

// Graceful shutdown
process.on('SIGINT', async () => {
	console.log('\n🛑 Shutting down...')
	await client.destroy()
	process.exit(0)
})