@app.route('/api/download', methods=['POST']) def download_audio(): """Download selected lessons""" data = request.json lesson_range = data.get('lesson_range', []) format_type = data.get('format', 'mp3')
<div class="content"> <div class="download-options"> <div class="option-card"> <h3>📚 Download by Range</h3> <div class="range-selector"> <input type="number" id="startLesson" placeholder="Start" min="1" max="113"> <input type="number" id="endLesson" placeholder="End" min="1" max="113"> </div> <button class="btn" onclick="downloadRange()">Download Range</button> </div> <div class="option-card"> <h3>🎯 Quick Presets</h3> <button class="btn" onclick="selectAll()" style="margin:5px">All Lessons</button> <button class="btn" onclick="selectFirstHalf()" style="margin:5px">Lessons 1-56</button> <button class="btn" onclick="selectSecondHalf()" style="margin:5px">Lessons 57-113</button> </div> </div> <h3>📖 Select Individual Lessons:</h3> <div class="lesson-grid" id="lessonGrid"> <!-- JavaScript will populate this --> </div> <div style="display: flex; gap: 10px; margin-top: 20px;"> <button class="btn" onclick="downloadSelected()">⬇️ Download Selected</button> <button class="btn" onclick="downloadAsZip()">📦 Download as ZIP</button> <button class="btn" onclick="selectAll()">✓ Select All</button> <button class="btn" onclick="clearSelection()">✗ Clear All</button> </div> <div class="progress-bar" id="progressBar" style="display:none"> <div class="progress-fill" id="progressFill">0%</div> </div> <div class="status" id="status"></div> </div> </div>
args = parser.parse_args()
return jsonify( 'success': True, 'downloaded': len([r for r in results if r['success']]), 'files': results ) @app.route('/api/download-zip', methods=['POST']) def download_as_zip(): """Download multiple lessons as ZIP archive""" data = request.json lesson_numbers = data.get('lessons', [])
I'll help you develop a feature for downloading audio files for "Assimil German With Ease." This feature would allow users to download lesson audio tracks from the Assimil language learning course. Core Components # audio_downloader.py import requests import os import json from pathlib import Path from typing import List, Dict, Optional import hashlib from concurrent.futures import ThreadPoolExecutor import threading class AssimilAudioDownloader: """Download manager for Assimil German With Ease audio tracks""" Assimil German With Ease Audio Download
# Create temporary ZIP file with tempfile.NamedTemporaryFile(suffix='.zip', delete=False) as tmp: with zipfile.ZipFile(tmp.name, 'w') as zipf: for lesson_num in lesson_numbers: audio_file = downloader.output_dir / f"lesson_lesson_num:03d.mp3" if audio_file.exists(): zipf.write(audio_file, audio_file.name) return send_file(tmp.name, as_attachment=True, download_name='assimil_german_audio.zip') if == ' main ': app.run(debug=True, port=5000) Frontend Interface (HTML/CSS/JS) <!-- templates/downloader.html --> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Assimil German Audio Downloader</title> <style> * margin: 0; padding: 0; box-sizing: border-box; body font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; padding: 20px; .container max-width: 1200px; margin: 0 auto; background: white; border-radius: 20px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); overflow: hidden; .header background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px; text-align: center; .header h1 font-size: 2em; margin-bottom: 10px; .content padding: 30px; .download-options display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 30px; .option-card background: #f7f7f7; padding: 20px; border-radius: 10px; border: 1px solid #e0e0e0; .option-card h3 margin-bottom: 15px; color: #333; .range-selector display: flex; gap: 10px; margin-bottom: 15px; .range-selector input flex: 1; padding: 10px; border: 1px solid #ddd; border-radius: 5px; .lesson-grid display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; max-height: 400px; overflow-y: auto; padding: 15px; background: #f9f9f9; border-radius: 10px; margin-bottom: 20px; .lesson-checkbox display: flex; align-items: center; gap: 8px; padding: 8px; background: white; border-radius: 5px; cursor: pointer; transition: all 0.3s; .lesson-checkbox:hover background: #e0e0e0; .btn background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; border: none; padding: 12px 24px; border-radius: 8px; cursor: pointer; font-size: 16px; transition: transform 0.2s; .btn:hover transform: translateY(-2px); .btn:disabled opacity: 0.5; cursor: not-allowed; .progress-bar width: 100%; height: 30px; background: #f0f0f0; border-radius: 15px; overflow: hidden; margin-top: 20px; .progress-fill height: 100%; background: linear-gradient(90deg, #667eea, #764ba2); transition: width 0.3s; display: flex; align-items: center; justify-content: center; color: white; font-size: 12px; .status margin-top: 20px; padding: 15px; background: #e8f5e9; border-radius: 8px; display: none; .status.success background: #c8e6c9; color: #2e7d32; .status.error background: #ffebee; color: #c62828; @keyframes spin 0% transform: rotate(0deg); 100% transform: rotate(360deg); .spinner border: 3px solid #f3f3f3; border-top: 3px solid #764ba2; border-radius: 50%; width: 40px; height: 40px; animation: spin 1s linear infinite; margin: 20px auto; </style> </head> <body> <div class="container"> <div class="header"> <h1>🎧 Assimil German With Ease</h1> <p>Download audio tracks for all 113 lessons</p> </div>
downloader = AssimilAudioDownloader(output_dir=args.output) []) format_type = data.get('format'
results = downloader.download_lesson_range( start_lesson=min(lesson_range), end_lesson=max(lesson_range), base_url_template=base_url )
# cli.py import argparse import sys def main(): parser = argparse.ArgumentParser(description='Download Assimil German audio') parser.add_argument('--start', type=int, help='Start lesson number') parser.add_argument('--end', type=int, help='End lesson number') parser.add_argument('--all', action='store_true', help='Download all lessons') parser.add_argument('--output', default='./audio', help='Output directory') parser.add_argument('--quality', choices=['low', 'high'], default='high') 📚 Download by Range<
def download_lesson_range(self, start_lesson: int, end_lesson: int, base_url_template: str) -> List[Dict]: """Download a range of lessons""" results = [] for lesson_num in range(start_lesson, end_lesson + 1): audio_url = base_url_template.format(lesson_num) filename = f"lesson_lesson_num:03d.mp3" print(f"Downloading Lesson lesson_num...") success = self.download_audio(audio_url, filename) results.append( 'lesson': lesson_num, 'filename': filename, 'success': success, 'url': audio_url ) return results
