const { readdir, writeFile, readFile } = require('fs/promises');

async function main() {
	let res = "";
	let list = await readdir('.');
	list = list.sort((x, y) => x.toLowerCase() < y.toLowerCase() ? -1 : 1);
	for (let f of list) {
		let c = await readFile(f, 'utf8');
		let l = c.split('\n')[0];
		res += l;
		if (!l.endsWith('\n')) { res += '\n'; }
	}
	await writeFile('_full_list.txt', res);
}

main();