revanced-bots/server/events/addTrainData.js

import { readFileSync, writeFileSync } from 'node:fs';
import { join } from 'node:path';

export default function addTrainData(eventData, __dirname, config) {
	const file = readFileSync(
		join(__dirname, config.fasttext.trainFile),
		'utf-8'
	);
	const { label, text } = eventData;

	if (file.includes(text)) return;

	const data = file.split('\n');

	const labelIndex = data.findIndex((data) => data.startsWith(label));

	data.splice(labelIndex === -1 ? 0 : labelIndex, 0, `${label} ${text}`);

	writeFileSync(join(__dirname, config.fasttext.trainFile), data.join('\n'));

	return;
}