Download Original Songs from JW

jw.js

const https = require('https');
const fs = require('fs');

// JW.org Public Media API for English (E) Original Songs (osg)
const API_URL = 'https://pubmedia.jw-api.org/GETPUBMEDIALINKS?output=json&pub=osg&fileformat=mp3&alllangs=0&langwritten=E&txtCMSLang=E';

https.get(API_URL, (res) => {
  let body = '';
  res.on('data', chunk => body += chunk);
  
  res.on('end', () => {
    try {
      const data = JSON.parse(body);
      const tracks = data.files.E.MP3;

      const missingTracks = tracks.filter(t => {
        const num = parseInt(t.track, 10);
        
        // 1. Check if it's one of the missing track numbers
        const isMissing = (num >= 54 && num <= 103) || num >= 107;
        
        // 2. Explicitly filter out Audio Descriptions
        // Checks the API flag, filename markers (_AD_), and title keywords
        const isAudioDescription = 
          t.audioDescr === true || 
          t.file.url.includes('_AD_') || 
          t.file.url.includes('_AD.') || 
          t.title.toLowerCase().includes('audio description');

        // Only keep the track if it is missing AND is NOT an audio description
        return isMissing && !isAudioDescription;
      });

      console.log(`Found ${missingTracks.length} missing standard songs. Starting download...`);

      missingTracks.forEach(t => {
        const numStr = String(t.track).padStart(3, '0');
        
        // Sanitize the title so it's safe for your filesystem
        const safeTitle = t.title.replace(/[<>:"/\\|?*]/g, '');
        const filename = `${numStr} ${safeTitle}.mp3`;
        const url = t.file.url;

        console.log(`Downloading: ${filename}`);
        
        const fileStream = fs.createWriteStream(filename);
        https.get(url, (downloadRes) => {
          downloadRes.pipe(fileStream);
          fileStream.on('finish', () => {
            fileStream.close();
            console.log(`Finished: ${filename}`);
          });
        }).on('error', (err) => {
          console.error(`Error downloading ${filename}:`, err.message);
          fs.unlink(filename, () => {});
        });
      });
      
    } catch (e) {
      console.error('Error parsing the JW API response.', e.message);
    }
  });
}).on('error', (err) => {
  console.error('Error fetching API data:', err.message);
});