Update app.py

app.py

@@ -2,11 +2,15 @@ import os
 import io
 import wave
 import struct
+import logging
 from flask import Flask, render_template, request, send_file, jsonify
 from werkzeug.utils import secure_filename
 
 app = Flask(__name__)
 
+logging.basicConfig(level=logging.DEBUG)
+logger = app.logger
+
 UPLOAD_FOLDER = '/tmp'
 ALLOWED_EXTENSIONS = {'mp3', 'wav'}
 
@@ -21,18 +25,23 @@ def index():
 
 @app.route('/process', methods=['POST'])
 def process_file():
+    logger.info("Processing file request received")
     if 'file' not in request.files:
+        logger.error("No file part in the request")
         return jsonify({'error': 'No file part'}), 400
     file = request.files['file']
     if file.filename == '':
+        logger.error("No selected file")
         return jsonify({'error': 'No selected file'}), 400
     if file and allowed_file(file.filename):
         filename = secure_filename(file.filename)
         filepath = os.path.join(app.config['UPLOAD_FOLDER'], filename)
         file.save(filepath)
+        logger.info(f"File saved: {filepath}")
 
         factor = int(request.form['factor'])
         is_decrypting = filename.lower().endswith('.mp3')
+        logger.info(f"Processing file: {'deconverting' if is_decrypting else 'converting'} with factor {factor}")
 
         try:
             if is_decrypting:
@@ -44,7 +53,9 @@ def process_file():
                 output_filename = 'converted_file.mp3'
                 mimetype = 'audio/mpeg'
 
+            logger.info(f"File processed successfully. Output size: {len(output)} bytes")
             os.remove(filepath)
+            logger.info(f"Temporary file removed: {filepath}")
 
             return send_file(
                 io.BytesIO(output),
@@ -53,12 +64,15 @@ def process_file():
                 download_name=output_filename
             )
         except Exception as e:
+            logger.error(f"Error processing file: {str(e)}")
             os.remove(filepath)
             return jsonify({'error': str(e)}), 500
 
+    logger.error("Invalid file type")
     return jsonify({'error': 'Invalid file type'}), 400
 
 def convert_file(filepath, factor):
+    logger.info(f"Converting file: {filepath}")
     with wave.open(filepath, 'rb') as wav_file:
         params = wav_file.getparams()
         frames = wav_file.readframes(wav_file.getnframes())
@@ -71,9 +85,11 @@ def convert_file(filepath, factor):
         wav_output.setparams(params)
         wav_output.writeframes(struct.pack(f'{len(modified_data)}h', *modified_data))
     
+    logger.info(f"Conversion complete. Output size: {output.getbuffer().nbytes} bytes")
     return output.getvalue()
 
 def deconvert_file(filepath, factor):
+    logger.info(f"Deconverting file: {filepath}")
     with wave.open(filepath, 'rb') as wav_file:
         params = wav_file.getparams()
         frames = wav_file.readframes(wav_file.getnframes())
@@ -86,6 +102,7 @@ def deconvert_file(filepath, factor):
         wav_output.setparams(params)
         wav_output.writeframes(struct.pack(f'{len(modified_data)}h', *modified_data))
     
+    logger.info(f"Deconversion complete. Output size: {output.getbuffer().nbytes} bytes")
     return output.getvalue()
 
 if __name__ == '__main__':