SoundWave/imports/api/converter.js

import { Meteor } from 'meteor/meteor';
import { Converted } from './links';
_ = lodash;

const bindHandlers = (ressource, type, path, filename, id, url, ) => {
	let capType = _.capitalize(type);
	ressource.on('unavailable', Meteor.bindEnvironment(err => {
		console.error('KO', url, err);
		Converted.update({ _id: id }, { $set: { [`error_${type}`]: `${capType} is unreachable` } });
	}))
			 .on('available', info => {
				 console.info('OK');
				 ressource.download(path);
			 })
			 .on('progress', Meteor.bindEnvironment(percent => {
				 Converted.update({ _id: id }, { $set: { [`${type}_progress`]: percent } })
			 }))
			 .on('error', Meteor.bindEnvironment(err => {
				 console.error(`${capType} download error: ${err.message}`);
				 Converted.update({ _id: id }, { $set: { [`error_${type}`]: `${capType} cannot be saved` } });
			 }))
			 .on('end', Meteor.bindEnvironment(() => {
				 console.info(`${capType} download complete for ${url}`);
				 Converted.update({ _id: id }, { $set: { [type]: filename, [`${type}_progress`]: 100 } });
			 }));
};

const convertAudio = (url, filename, id) => {
	if (Meteor.isServer) {
		import { AudioConverter } from '../../server/Converter';
		import path from 'path';

		const filePath = path.resolve(process.env.UPLOAD_DIR, filename);
		console.log(`Converting ${url} to MP3...`);

		let audio_dl = new AudioConverter(url);
		bindHandlers(audio_dl, 'audio', filePath + '.mp3', filename + '.mp3', id, url);
	}
};

const convertVideo = (url, filename, id) => {
	if (Meteor.isServer) {
		import { VideoConverter } from '../../server/Converter';
		import path from 'path';

		const filePath = path.resolve(process.env.UPLOAD_DIR, filename);
		console.log(`Converting ${url} to MP4 ...`);

		let video_dl = new VideoConverter(url);
		bindHandlers(video_dl, 'video', filePath + '.mp4', filename + '.mp4', id, url);
	}
};

export { convertAudio, convertVideo };