Add ZIP contents preview showing PDFs inside uploaded ZIP files

pdf_renamer.py

@@ -83,13 +83,27 @@ def process_job(job_id, files):
     os.makedirs(episode_dir, exist_ok=True)
     job_queue[job_id]['progress'] = 'Created output directory structure'
     
+    # Analyze ZIP contents before processing
+    zip_contents = {}
+    for file_info in files:
+        if file_info['name'].lower().endswith('.zip'):
+            try:
+                with zipfile.ZipFile(file_info['path'], 'r') as zip_ref:
+                    pdf_files = [f for f in zip_ref.namelist() if f.lower().endswith('.pdf')]
+                    zip_contents[file_info['name']] = pdf_files
+            except Exception as e:
+                zip_contents[file_info['name']] = [f"Error reading ZIP: {str(e)}"]
+    
+    job_queue[job_id]['zip_contents'] = zip_contents
+    
     total_files = sum(1 for file_info in files if file_info['name'].lower().endswith('.pdf')) + \
-                  sum(len([f for f in zipfile.ZipFile(file_info['path']).namelist() 
+                  sum(len(zip_contents.get(file_info['name'], [])) 
-                          if f.lower().endswith('.pdf')]) 
                       for file_info in files if file_info['name'].lower().endswith('.zip'))
     
     processed_count = 0
     
+    processed_count = 0
+    
     for file_info in files:
         filepath = file_info['path']
         filename = file_info['name']
@@ -365,8 +379,9 @@ def jobs():
             .download-btn:hover { background-color: #0056b3; }
             .logout { position: absolute; top: 20px; right: 20px; background-color: #dc3545; color: white; text-decoration: none; padding: 10px 20px; border-radius: 5px; }
             .logout:hover { background-color: #c82333; }
+            .zip-content { background-color: #f8f9fa; padding: 10px; margin: 5px 0; border-radius: 5px; border-left: 4px solid #007bff; }
             ul { list-style-type: none; padding: 0; }
-            li { background-color: #f8f9fa; margin: 2px 0; padding: 5px; border-radius: 3px; }
+            li { background-color: #ffffff; margin: 2px 0; padding: 5px; border-radius: 3px; }
         </style>
     </head>
     <body>
@@ -381,6 +396,19 @@ def jobs():
             <p><strong>Progress:</strong> <span class="progress-text">{{ job.progress }}</span></p>
             {% endif %}
             <p><strong>Files:</strong> {{ job.files|length }}</p>
+            {% if job.zip_contents %}
+            <p><strong>ZIP Contents:</strong></p>
+            {% for zip_name, pdf_files in job.zip_contents.items() %}
+            <div class="zip-content">
+                <strong>{{ zip_name }}:</strong>
+                <ul>
+                {% for pdf_file in pdf_files %}
+                    <li>{{ pdf_file }}</li>
+                {% endfor %}
+                </ul>
+            </div>
+            {% endfor %}
+            {% endif %}
             {% if job.status == 'completed' %}
                 {% if job.zip_name %}
                 <p><a href="/download/{{ job.zip_name }}" class="download-btn">Download ZIP</a></p>