'use strict';

const fs = require('fs').promises;
const bhttp = require('bhttp');

async function init() {
	const countryImgs = await fs.readdir('./assets/countries');
	const res = await bhttp.get('http://localhost:3000/api/countries');

	const countries = res.body;
	const countriesByCode = Object.fromEntries(countries.map((country) => [country.alpha2, country]));

	const imgCountries = await Promise.all(countryImgs.filter((file) => file !== 'encoded').map(async (file) => {
		const code = file.match(/(\w+).png/)[1];
		const filename = `${Buffer.from(code).toString('base64')}.png`;

		await fs.copyFile(`./assets/countries/${file}`, `./assets/countries/encoded/${filename}`);

		return {
			file: filename,
			code,
			...countriesByCode[code],
		};
	}));

	await fs.writeFile('./assets/countries.json', JSON.stringify(imgCountries, null, 4));

	console.log('Done!');
}

init();