const fs = require('fs');
const path = require('path');
const https = require('https');
const { URL } = require('url');

var filePath = path.resolve('assets/');

const options = {
	method: 'POST',
	hostname: 'tinypng.com',
	path: '/web/shrink',
	headers: {
		rejectUnauthorized: false,
		'Postman-Token': Date.now(),
		'Cache-Control': 'no-cache',
		'Content-Type': 'application/x-www-form-urlencoded',
		'User-Agent':
			'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36',
	},
};

fileDisplay(filePath);

function getRandomIP() {
	return Array.from(Array(4))
		.map(() => parseInt(Math.random() * 255))
		.join('.');
}

function fileDisplay(filePath) {
	fs.readdir(filePath, function (err, files) {
		if (err) {
			console.warn(err);
		} else {
			files.forEach(function (filename) {
				var filedir = path.join(filePath, filename);

				fs.stat(filedir, function (eror, stats) {
					if (eror) {
						
					} else {
						var isFile = stats.isFile(); 
						var isDir = stats.isDirectory(); 
						if (isFile) {
							if (
								filedir.includes('.png') &&
								!filedir.includes('.meta')
							) {
								
								options.headers['X-Forwarded-For'] =
									getRandomIP();
								fileUpload(filedir);
							}
						}
						if (isDir) {
							fileDisplay(filedir); 
						}
					}
				});
			});
		}
	});
}

function fileUpload(img) {
	var req = https.request(options, function (res) {
		res.on('data', (buf) => {
			let obj = JSON.parse(buf.toString());
			if (obj.error) {
			
			} else {
				fileUpdate(img, obj);
			}
		});
	});

	req.write(fs.readFileSync(img), 'binary');
	req.on('error', (e) => {
		console.error(e);
	});
	req.end();
}

function fileUpdate(imgpath, obj) {
	console.log('update img' + imgpath);
	let options = new URL(obj.output.url);
	let req = https.request(options, (res) => {
		let body = '';
		res.setEncoding('binary');
		res.on('data', function (data) {
			body += data;
		});

		res.on('end', function () {
			fs.writeFile(imgpath, body, 'binary', (err) => {
				if (err) return console.error(err);
				
			});
		});
	});
	req.on('error', (e) => {
		console.error(e);
	});
	req.end();
}