Id3 Tag Clean up and OSX Tag from Comments

id3tagOperations.js

// yarn add node-id3 osx-tag

const path = require('path');
const fs = require('fs');
const NodeID3 = require('node-id3')
const tag = require('osx-tag');

const urlREGEX = new RegExp("([a-zA-Z0-9]+://)?([a-zA-Z0-9_]+:[a-zA-Z0-9_]+@)?([a-zA-Z0-9.-]+\\.[A-Za-z]{2,4})(:[0-9]+)?([^ ])+");

const allowedTags = ['3AM', '4AM', '5AM', 'acid', 'afro', 'ah', 'ambient', 'analog', 'bouncy', 'breakdown', 'buildup', 'chillout', 'classic', 'closer', 'closing', 'commercial', 'dark', 'deep', 'dirty', 'dub', 'eastern', 'elemental', 'festival', 'funk', 'grimy', 'grinder', 'hiphouse', 'hiptech', 'house', 'I', 'I-II', 'I-IV', 'I-V', 'II', 'II-III', 'II-IV', 'III', 'III-IV', 'indie', 'IV', 'IV-V', 'jack', 'khole', 'latin', 'lounge', 'massive', 'melodic', 'minimal', 'nobass', 'nudisco', 'nujazz', 'opener', 'opening', 'PODCAST', 'prime', 'proggy', 'soul', 'spoken', 'sundaze', 'sunrise', 'tech', 'trance', 'tribal', 'V', 'vox', 'XXX']

const usbDir = '/Volumes/USB DISK/'
const folder = 'processing-prime/'

const sampleDir = '/Users/gshah/Desktop/test/'
// const directoryPath = path.join(__dirname, 'Downloads');
const directoryPath = path.join(sampleDir);
const getFileExtension = (filename) => filename.split('.').pop();

const cleanComment = (string) => string.replace(/[^\w\s]/gi, '');
const stringToComments = (string) => string.split(' ');

const getComments = (string) => stringToComments(cleanComment(string));

function setTags(filepath, tags) {
  tag.setTags(filepath, tags, (err, tags) => {
    if(err) console.log(err)
    console.log(tags);
  });
}

function parseMetaAndSetOSTag(meta, allowedTags) {
  const tags = [];
  if (meta) {
      // console.log('has meta')
      const album = meta.album;
      if(album) {
        tags.push(album.split('Set ')[1]);
      }

      if(meta.comment) {
        // console.log('has comments')
        if(meta.comment.text) {
          // console.log('comments have text')
          const comments = getComments(meta.comment.text);
          if(comments.length > 0) {
            // console.log(comments)
            comments.forEach(tag => {
              if(allowedTags.includes(tag)) {
                tags.push(tag)
              }
            });
          }

          if(tags.length > 0) {
            setTags(filepath, tags);
            console.log(file);
          }
        }
      }
  }
    // @TODO: throw error if no meta exists
}

function cleanFilename(file) {
  let currFile = file;
  const ext = getFileExtension(file)
  function removeUnicodeArrowFromFilename(file) {
    const unicodeArrow = /\u{25BA}/u; // ►
    if(file.match(unicodeArrow)) {
      currFile = file.split(unicodeArrow)[1].trim()
    }
  }

  function removeLabelAndKeyFromFilename(file) {
    if(file.includes('[')) {
      currFile = file.split('[')[0].trim() + "." + ext;
    }
  }
  removeUnicodeArrowFromFilename(currFile)
  removeLabelAndKeyFromFilename(currFile)
  console.log('✅', currFile)

  fs.rename(path.join(directoryPath, file), path.join(directoryPath, currFile), (err) => {
    if(err) throw err;
  });
}

function iterateOverAudioFilessAndCleanFilename() {
  if(err) return console.log('Unable to scan directory' + err);
  files.forEach((file) => {
    const ext = getFileExtension(file)
    if (ext === 'mp3' || ext  === 'wav' || ext === 'flac') {
      const filepath = path.join(directoryPath, file);
      cleanFilename(file) // removes ascii play symbol + label and key from filename
    }
  });
}
function iterateOverAudioFilessAndAddOSTagsFromComments() {
  if(err) return console.log('Unable to scan directory' + err);
  files.forEach((file) => {
    const ext = getFileExtension(file)
    if (ext === 'mp3' || ext  === 'wav' || ext === 'flac') {
      const filepath = path.join(directoryPath, file);
      const meta = NodeID3.read(filepath)
      parseMetaAndSetOSTag(meta, allowedTags) // set OSX tags for each file
    }
  });
}