Update app.py

app.py

@@ -13,6 +13,13 @@ import json
 # Load environment variables
 load_dotenv()
 
+# Authentication configuration
+AUTH_PASSWORD = "gst_magic@##56$$"
+
+def authenticate(password):
+    """Simple authentication function"""
+    return password == AUTH_PASSWORD
+
 # Validate required environment variables
 required_env_vars = ["PINECONE_API_KEY"]
 missing_vars = [var for var in required_env_vars if not os.getenv(var)]
@@ -458,344 +465,593 @@ def finish_processing():
     """Show processing finished status"""
     return "✅ **Processing completed successfully!**"
 
-# Create Gradio interface
-with gr.Blocks(
-    title="📄 Tax Document Ingestion System",
-    theme=gr.themes.Soft(),
-    css="""
-    .gradio-container {
-        max-width: 1400px !important;
-        margin: auto;
-    }
-    .upload-container {
-        border: 2px dashed #4CAF50;
-        border-radius: 10px;
-        padding: 20px;
-        text-align: center;
-        background-color: #f8f9fa;
-    }
-    .delete-container {
-        border: 2px dashed #f44336;
-        border-radius: 10px;
-        padding: 20px;
-        background-color: #ffebee;
-    }
-    .tab-nav {
-        margin-bottom: 20px;
-    }
-    """
-) as app:
-    
-    gr.Markdown(
+def create_main_interface():
+    """Create the main application interface"""
+    with gr.Blocks(
+        title="📄 Tax Document Ingestion System",
+        theme=gr.themes.Soft(),
+        css="""
+        .gradio-container {
+            max-width: 1400px !important;
+            margin: auto;
+        }
+        .upload-container {
+            border: 2px dashed #4CAF50;
+            border-radius: 10px;
+            padding: 20px;
+            text-align: center;
+            background-color: #f8f9fa;
+        }
+        .delete-container {
+            border: 2px dashed #f44336;
+            border-radius: 10px;
+            padding: 20px;
+            background-color: #ffebee;
+        }
+        .tab-nav {
+            margin-bottom: 20px;
+        }
         """
-        # 📄 Tax Document Ingestion System
-        
-        Upload, manage, and delete documents in the Pinecone Assistant for GST Minutes processing.
+    ) as app:
         
-        ## 🚀 Features:
-        - ✅ **Multiple file upload** - Select and upload multiple documents at once
-        - 🏷️ **Metadata tagging** - Add sections, keywords, and descriptions
-        - 🔄 **Batch processing** - All files processed with individual metadata
-        - 🗑️ **File deletion** - Delete multiple files by selecting from dropdown
-        - 📊 **File management** - View uploaded files with timestamps and metadata
-        - 📋 **Detailed reporting** - See success/failure status for each operation
-        
-        ---
-        """
-    )
-    
-    # Create tabs for different functionalities
-    with gr.Tabs() as tabs:
-        
-        # Tab 1: Upload Documents
-        with gr.TabItem("📤 Upload Documents", id="upload_tab"):
-            with gr.Row():
-                with gr.Column(scale=1):
-                    gr.Markdown("### 📁 **File Upload**")
-                    files_input = gr.File(
-                        label="Select Documents (Max 10 files)",
-                        file_count="multiple",
-                        file_types=[".pdf", ".doc", ".docx", ".txt"],
-                        elem_classes=["upload-container"]
-                    )
-                    
-                with gr.Column(scale=1):
-                    gr.Markdown("### 🏷️ **Document Metadata (Individual for Each File)**")
-                    gr.Markdown("*Upload files first, then metadata fields will appear for each document*")
-            
-            # Dynamic metadata fields container
-            with gr.Column() as metadata_container:
-                # Create 30 text fields (enough for 10 files with 3 fields each)
-                metadata_fields = []
-                for i in range(30):
-                    field = gr.Textbox(
-                        label=f"Field {i}",
-                        placeholder="",
-                        visible=False,
-                        lines=2
-                    )
-                    metadata_fields.append(field)
-            
-            with gr.Row():
-                with gr.Column(scale=1):
-                    upload_btn = gr.Button(
-                        "🚀 Upload Documents to Pinecone Assistant",
-                        variant="primary",
-                        size="lg"
-                    )
-                    
-                with gr.Column(scale=1):
-                    clear_btn = gr.Button(
-                        "🗑️ Clear Form",
-                        variant="secondary",
-                        size="lg"
-                    )
+        gr.Markdown(
+            """
+            # 📄 Tax Document Ingestion System
             
-            # Processing status indicator
-            with gr.Row():
-                processing_status = gr.Markdown(
-                    value="🟢 **Ready to process documents**",
-                    visible=True
-                )
+            Upload, manage, and delete documents in the Pinecone Assistant for GST Minutes processing.
             
-            gr.Markdown("---")
+            ## 🚀 Features:
+            - ✅ **Multiple file upload** - Select and upload multiple documents at once
+            - 🏷️ **Metadata tagging** - Add sections, keywords, and descriptions
+            - 🔄 **Batch processing** - All files processed with individual metadata
+            - 🗑️ **File deletion** - Delete multiple files by selecting from dropdown
+            - 📊 **File management** - View uploaded files with timestamps and metadata
+            - 📋 **Detailed reporting** - See success/failure status for each operation
             
-            # Results section
-            with gr.Row():
-                with gr.Column():
-                    status_output = gr.Markdown(
-                        label="📊 Upload Status",
-                        value="*Ready to upload documents...*"
-                    )
+            ---
+            """
+        )
+        
+        # Create tabs for different functionalities
+        with gr.Tabs() as tabs:
             
-            with gr.Row():
-                with gr.Column():
-                    results_output = gr.Markdown(
-                        label="📋 Detailed Results",
-                        value="",
-                        max_height=400  # Add height limit for scrolling
+            # Tab 1: Upload Documents
+            with gr.TabItem("📤 Upload Documents", id="upload_tab"):
+                with gr.Row():
+                    with gr.Column(scale=1):
+                        gr.Markdown("### 📁 **File Upload**")
+                        files_input = gr.File(
+                            label="Select Documents (Max 10 files)",
+                            file_count="multiple",
+                            file_types=[".pdf", ".doc", ".docx", ".txt"],
+                            elem_classes=["upload-container"]
+                        )
+                        
+                    with gr.Column(scale=1):
+                        gr.Markdown("### 🏷️ **Document Metadata (Individual for Each File)**")
+                        gr.Markdown("*Upload files first, then metadata fields will appear for each document*")
+                
+                # Dynamic metadata fields container
+                with gr.Column() as metadata_container:
+                    # Create 30 text fields (enough for 10 files with 3 fields each)
+                    metadata_fields = []
+                    for i in range(30):
+                        field = gr.Textbox(
+                            label=f"Field {i}",
+                            placeholder="",
+                            visible=False,
+                            lines=2
+                        )
+                        metadata_fields.append(field)
+                
+                with gr.Row():
+                    with gr.Column(scale=1):
+                        upload_btn = gr.Button(
+                            "🚀 Upload Documents to Pinecone Assistant",
+                            variant="primary",
+                            size="lg"
+                        )
+                        
+                    with gr.Column(scale=1):
+                        clear_btn = gr.Button(
+                            "🗑️ Clear Form",
+                            variant="secondary",
+                            size="lg"
+                        )
+                
+                # Processing status indicator
+                with gr.Row():
+                    processing_status = gr.Markdown(
+                        value="🟢 **Ready to process documents**",
+                        visible=True
                     )
+                
+                gr.Markdown("---")
+                
+                # Results section
+                with gr.Row():
+                    with gr.Column():
+                        status_output = gr.Markdown(
+                            label="📊 Upload Status",
+                            value="*Ready to upload documents...*"
+                        )
+                
+                with gr.Row():
+                    with gr.Column():
+                        results_output = gr.Markdown(
+                            label="📋 Detailed Results",
+                            value="",
+                            max_height=400  # Add height limit for scrolling
+                        )
 
-        # Tab 2: Delete Documents
-        with gr.TabItem("🗑️ Delete Documents", id="delete_tab"):
-            gr.Markdown("### 🗑️ **Delete Multiple Documents**")
-            gr.Markdown("Select multiple files from the dropdown to delete them from the Pinecone Assistant.")
+            # Tab 2: Delete Documents
+            with gr.TabItem("🗑️ Delete Documents", id="delete_tab"):
+                gr.Markdown("### 🗑️ **Delete Multiple Documents**")
+                gr.Markdown("Select multiple files from the dropdown to delete them from the Pinecone Assistant.")
+                
+                with gr.Row():
+                    with gr.Column(scale=2):
+                        file_dropdown = gr.Dropdown(
+                            label="📋 Select Files to Delete (Multiple Selection)",
+                            choices=[],
+                            multiselect=True,
+                            interactive=False,
+                            elem_classes=["delete-container"]
+                        )
+                        
+                    with gr.Column(scale=1):
+                        refresh_dropdown_btn = gr.Button(
+                            "🔄 Refresh File List",
+                            variant="secondary",
+                            size="lg"
+                        )
+                
+                with gr.Row():
+                    with gr.Column(scale=1):
+                        delete_btn = gr.Button(
+                            "🗑️ Delete Selected Files",
+                            variant="stop",
+                            size="lg"
+                        )
+                        
+                    with gr.Column(scale=1):
+                        clear_delete_btn = gr.Button(
+                            "↺ Clear Selection",
+                            variant="secondary",
+                            size="lg"
+                        )
+                
+                gr.Markdown("---")
+                
+                # Delete results section
+                with gr.Row():
+                    with gr.Column():
+                        delete_status_output = gr.Markdown(
+                            label="📊 Deletion Status",
+                            value="*Select files to delete...*"
+                        )
+                
+                with gr.Row():
+                    with gr.Column():
+                        delete_results_output = gr.Markdown(
+                            label="🗑️ Deletion Results",
+                            value="",
+                            max_height=400
+                        )
             
-            with gr.Row():
-                with gr.Column(scale=2):
-                    file_dropdown = gr.Dropdown(
-                        label="📋 Select Files to Delete (Multiple Selection)",
-                        choices=[],
-                        multiselect=True,
-                        interactive=False,
-                        elem_classes=["delete-container"]
-                    )
-                    
-                with gr.Column(scale=1):
-                    refresh_dropdown_btn = gr.Button(
-                        "🔄 Refresh File List",
-                        variant="secondary",
+            # Tab 3: View Uploaded Files
+            with gr.TabItem("📋 View Uploaded Files", id="view_tab"):
+                gr.Markdown("### 📋 **Uploaded Files Management**")
+                gr.Markdown("View all files currently uploaded to the Pinecone Assistant with their metadata and timestamps.")
+                
+                with gr.Row():
+                    refresh_btn = gr.Button(
+                        "🔄 Fetch Files",
+                        variant="primary",
                         size="lg"
                     )
-            
-            with gr.Row():
-                with gr.Column(scale=1):
-                    delete_btn = gr.Button(
-                        "🗑️ Delete Selected Files",
-                        variant="stop",
-                        size="lg"
+                
+                # File list status
+                with gr.Row():
+                    file_list_status = gr.Markdown(
+                        value="🟡 **Click 'Fetch Files' to load uploaded files**",
+                        visible=True
                     )
-                    
-                with gr.Column(scale=1):
-                    clear_delete_btn = gr.Button(
-                        "↺ Clear Selection",
+                
+                gr.Markdown("---")
+                
+                # Pagination controls
+                with gr.Row():
+                    prev_btn = gr.Button(
+                        "⬅️ Previous 100",
                         variant="secondary",
-                        size="lg"
+                        visible=False
                     )
-            
-            gr.Markdown("---")
-            
-            # Delete results section
-            with gr.Row():
-                with gr.Column():
-                    delete_status_output = gr.Markdown(
-                        label="📊 Deletion Status",
-                        value="*Select files to delete...*"
+                    pagination_info = gr.Markdown(
+                        value="📄 Page 1 of 1 | Total: 0 files",
+                        elem_classes=["pagination-info"]
                     )
-            
-            with gr.Row():
-                with gr.Column():
-                    delete_results_output = gr.Markdown(
-                        label="🗑️ Deletion Results",
-                        value="",
-                        max_height=400
+                    next_btn = gr.Button(
+                        "Next 100 ➡️",
+                        variant="secondary", 
+                        visible=False
                     )
+                
+                # File list results
+                with gr.Row():
+                    with gr.Column(scale=1):
+                        file_summary = gr.Markdown(
+                            label="📊 Files Summary",
+                            value="*Click refresh to load file summary...*"
+                        )
+                
+                with gr.Row():
+                    with gr.Column():
+                        file_details = gr.Markdown(
+                            label="📋 File Details",
+                            value="*Click refresh to load file details...*",
+                            max_height=600  # Add height limit for scrolling
+                        )
+        
+        # Event handlers for Upload tab
+        
+        # Update metadata fields when files are uploaded
+        files_input.change(
+            fn=update_metadata_fields,
+            inputs=[files_input],
+            outputs=metadata_fields
+        )
         
-        # Tab 3: View Uploaded Files
-        with gr.TabItem("📋 View Uploaded Files", id="view_tab"):
-            gr.Markdown("### 📋 **Uploaded Files Management**")
-            gr.Markdown("View all files currently uploaded to the Pinecone Assistant with their metadata and timestamps.")
+        # Show processing status when upload starts
+        upload_btn.click(
+            fn=start_processing,
+            outputs=[processing_status]
+        ).then(
+            fn=process_files_with_progress,
+            inputs=[files_input] + metadata_fields,
+            outputs=[status_output, results_output, processing_status]
+        )
+        
+        clear_btn.click(
+            fn=clear_form,
+            outputs=[files_input] + metadata_fields + [status_output, results_output, processing_status]
+        )
+        
+        # Event handlers for Delete tab
+        
+        # Refresh dropdown with current files
+        refresh_dropdown_btn.click(
+            fn=refresh_delete_dropdown,
+            outputs=[file_dropdown]
+        )
+        
+        # Delete selected files
+        delete_btn.click(
+            fn=delete_selected_files,
+            inputs=[file_dropdown],
+            outputs=[delete_status_output, delete_results_output]
+        )
+        
+        # Clear delete form
+        clear_delete_btn.click(
+            fn=clear_delete_form,
+            outputs=[file_dropdown, delete_status_output, delete_results_output]
+        )
+        
+        # Event handlers for View Files tab
+        
+        # Fetch files - load page 1
+        refresh_btn.click(
+            fn=refresh_file_list,
+            outputs=[file_list_status]
+        ).then(
+            fn=list_uploaded_files_paginated,
+            inputs=[],
+            outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn]
+        )
+        
+        # Next page button
+        next_btn.click(
+            fn=load_next_page,
+            inputs=[pagination_info],
+            outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn]
+        )
+        
+        # Previous page button  
+        prev_btn.click(
+            fn=load_prev_page,
+            inputs=[pagination_info],
+            outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn]
+        )
+        
+        # Footer
+        gr.Markdown(
+            """
+            ---
             
-            with gr.Row():
-                refresh_btn = gr.Button(
-                    "🔄 Fetch Files",
-                    variant="primary",
-                    size="lg"
-                )
+            ### 💡 **Usage Tips:**
             
-            # File list status
-            with gr.Row():
-                file_list_status = gr.Markdown(
-                    value="🟡 **Click 'Fetch Files' to load uploaded files**",
-                    visible=True
-                )
+            **Upload Documents:**
+            - Select up to 10 PDF, DOC, DOCX, or TXT files at once
+            - Upload files first, then fill individual metadata for each document
+            - Each file gets its own sections, keywords, and description
+            - Check the results section for upload status
             
-            gr.Markdown("---")
+            **Delete Documents:**
+            - Click 'Refresh File List' to load current files in dropdown
+            - Select multiple files using the dropdown (supports multi-select)
+            - Click 'Delete Selected Files' to remove them permanently
+            - View deletion results for success/failure status
             
-            # Pagination controls
-            with gr.Row():
-                prev_btn = gr.Button(
-                    "⬅️ Previous 100",
-                    variant="secondary",
-                    visible=False
-                )
-                pagination_info = gr.Markdown(
-                    value="📄 Page 1 of 1 | Total: 0 files",
-                    elem_classes=["pagination-info"]
-                )
-                next_btn = gr.Button(
-                    "Next 100 ➡️",
-                    variant="secondary", 
-                    visible=False
-                )
+            **View Uploaded Files:**
+            - Click 'Fetch Files' to see all uploaded files
+            - View file details including upload timestamps and metadata
+            - Files are sorted by most recent first
+            - Use pagination to navigate through large file lists
             
-            # File list results
-            with gr.Row():
-                with gr.Column(scale=1):
-                    file_summary = gr.Markdown(
-                        label="📊 Files Summary",
-                        value="*Click refresh to load file summary...*"
-                    )
+            ### ⚠️ **Important Notes:**
+            - File deletion is **permanent** and cannot be undone
+            - Always verify your selection before deleting files
+            - The system maps file titles to IDs internally for deletion
             
-            with gr.Row():
-                with gr.Column():
-                    file_details = gr.Markdown(
-                        label="📋 File Details",
-                        value="*Click refresh to load file details...*",
-                        max_height=600  # Add height limit for scrolling
-                    )
-    
-    # Event handlers for Upload tab
-    
-    # Update metadata fields when files are uploaded
-    files_input.change(
-        fn=update_metadata_fields,
-        inputs=[files_input],
-        outputs=metadata_fields
-    )
-    
-    # Show processing status when upload starts
-    upload_btn.click(
-        fn=start_processing,
-        outputs=[processing_status]
-    ).then(
-        fn=process_files_with_progress,
-        inputs=[files_input] + metadata_fields,
-        outputs=[status_output, results_output, processing_status]
-    )
-    
-    clear_btn.click(
-        fn=clear_form,
-        outputs=[files_input] + metadata_fields + [status_output, results_output, processing_status]
-    )
-    
-    # Event handlers for Delete tab
-    
-    # Refresh dropdown with current files
-    refresh_dropdown_btn.click(
-        fn=refresh_delete_dropdown,
-        outputs=[file_dropdown]
-    )
-    
-    # Delete selected files
-    delete_btn.click(
-        fn=delete_selected_files,
-        inputs=[file_dropdown],
-        outputs=[delete_status_output, delete_results_output]
-    )
-    
-    # Clear delete form
-    clear_delete_btn.click(
-        fn=clear_delete_form,
-        outputs=[file_dropdown, delete_status_output, delete_results_output]
-    )
-    
-    # Event handlers for View Files tab
-    
-    # Fetch files - load page 1
-    refresh_btn.click(
-        fn=refresh_file_list,
-        outputs=[file_list_status]
-    ).then(
-        fn=list_uploaded_files_paginated,
-        inputs=[],
-        outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn]
-    )
-    
-    # Next page button
-    next_btn.click(
-        fn=load_next_page,
-        inputs=[pagination_info],
-        outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn]
-    )
-    
-    # Previous page button  
-    prev_btn.click(
-        fn=load_prev_page,
-        inputs=[pagination_info],
-        outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn]
-    )
+            ### 📞 **Support:**
+            For issues or questions, contact the development team.
+            """
+        )
     
-    # Footer
-    gr.Markdown(
-        """
-        ---
-        
-        ### 💡 **Usage Tips:**
-        
-        **Upload Documents:**
-        - Select up to 10 PDF, DOC, DOCX, or TXT files at once
-        - Upload files first, then fill individual metadata for each document
-        - Each file gets its own sections, keywords, and description
-        - Check the results section for upload status
-        
-        **Delete Documents:**
-        - Click 'Refresh File List' to load current files in dropdown
-        - Select multiple files using the dropdown (supports multi-select)
-        - Click 'Delete Selected Files' to remove them permanently
-        - View deletion results for success/failure status
-        
-        **View Uploaded Files:**
-        - Click 'Fetch Files' to see all uploaded files
-        - View file details including upload timestamps and metadata
-        - Files are sorted by most recent first
-        - Use pagination to navigate through large file lists
-        
-        ### ⚠️ **Important Notes:**
-        - File deletion is **permanent** and cannot be undone
-        - Always verify your selection before deleting files
-        - The system maps file titles to IDs internally for deletion
-        
-        ### 📞 **Support:**
-        For issues or questions, contact the development team.
+    return app
+
+def create_login_interface():
+    """Create the login interface"""
+    with gr.Blocks(
+        title="🔐 Authentication Required",
+        theme=gr.themes.Soft(),
+        css="""
+        .gradio-container {
+            max-width: 500px !important;
+            margin: auto;
+            padding-top: 100px;
+        }
+        .login-container {
+            border: 2px solid #2196F3;
+            border-radius: 15px;
+            padding: 30px;
+            text-align: center;
+            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
+            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
+        }
+        .password-input {
+            margin: 20px 0;
+        }
+        .login-button {
+            margin-top: 15px;
+        }
+        .error-message {
+            color: #f44336;
+            font-weight: bold;
+            margin-top: 10px;
+        }
         """
-    )
+    ) as login_app:
+        
+        with gr.Column(elem_classes=["login-container"]):
+            gr.Markdown(
+                """
+                # 🔐 **Tax Document System**
+                ## **Authentication Required**
+                
+                Please enter the password to access the application.
+                
+                ---
+                """
+            )
+            
+            password_input = gr.Textbox(
+                label="🔑 Password",
+                type="password",
+                placeholder="Enter password to access the system",
+                elem_classes=["password-input"]
+            )
+            
+            login_btn = gr.Button(
+                "🚀 Login",
+                variant="primary",
+                size="lg",
+                elem_classes=["login-button"]
+            )
+            
+            error_message = gr.Markdown(
+                value="",
+                visible=False,
+                elem_classes=["error-message"]
+            )
+            
+            gr.Markdown(
+                """
+                ---
+                
+                ### 🛡️ **Security Notice:**
+                - This system contains sensitive tax documentation
+                - Authorized access only
+                - All activities are logged
+                
+                ### 📞 **Need Access?**
+                Contact your system administrator for credentials.
+                """
+            )
+    
+    return login_app, password_input, login_btn, error_message
+def main():
+    """Main application with authentication — single Gradio Blocks app.
+
+    This builds both the login UI and the main application UI inside one
+    `gr.Blocks` so we only call `.launch()` once. The main UI is hidden
+    until authentication succeeds. This avoids launching two separate
+    Gradio servers which was causing the server to close unexpectedly.
+    """
+
+    # Reuse same theme/CSS as main app for consistency
+    app_css = """
+        .gradio-container {
+            max-width: 1400px !important;
+            margin: auto;
+        }
+        .upload-container {
+            border: 2px dashed #4CAF50;
+            border-radius: 10px;
+            padding: 20px;
+            text-align: center;
+            background-color: #f8f9fa;
+        }
+        .delete-container {
+            border: 2px dashed #f44336;
+            border-radius: 10px;
+            padding: 20px;
+            background-color: #ffebee;
+        }
+        .login-container {
+            border: 2px solid #2196F3;
+            border-radius: 15px;
+            padding: 30px;
+            text-align: center;
+            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
+            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
+        }
+    """
+
+    with gr.Blocks(title="Tax Document Ingestion System", theme=gr.themes.Soft(), css=app_css) as app:
+
+        # --- LOGIN CONTAINER (visible initially) ---
+        with gr.Column(elem_classes=["login-container"]) as login_container:
+            gr.Markdown("""
+            # Tax Document System
+            Authentication required
+            """)
+
+            password_input = gr.Textbox(
+                label="Password",
+                type="password",
+                placeholder="Enter password"
+            )
+
+            login_btn = gr.Button("Login", variant="primary", size="lg")
+
+            error_message = gr.Markdown(value="", visible=False)
+
+        # --- MAIN APP CONTAINER (hidden until auth) ---
+        with gr.Column(visible=False) as main_container:
+            # Insert main UI contents (slimmed text, no emojis)
+            gr.Markdown(
+                """
+                # Tax Document Ingestion System
+
+                Upload, manage, and delete documents in the Pinecone Assistant.
+                """
+            )
+
+            with gr.Tabs() as tabs:
+                # Upload Tab
+                with gr.TabItem("Upload Documents", id="upload_tab"):
+                    with gr.Row():
+                        with gr.Column(scale=1):
+                            gr.Markdown("### File Upload")
+                            files_input = gr.File(
+                                label="Select Documents (Max 10 files)",
+                                file_count="multiple",
+                                file_types=[".pdf", ".doc", ".docx", ".txt"],
+                                elem_classes=["upload-container"]
+                            )
+                        with gr.Column(scale=1):
+                            gr.Markdown("### Document Metadata")
+
+                    with gr.Column() as metadata_container:
+                        metadata_fields = []
+                        for i in range(30):
+                            field = gr.Textbox(label=f"Field {i}", placeholder="", visible=False, lines=2)
+                            metadata_fields.append(field)
+
+                    with gr.Row():
+                        with gr.Column(scale=1):
+                            upload_btn = gr.Button("Upload Documents to Pinecone Assistant", variant="primary")
+                        with gr.Column(scale=1):
+                            clear_btn = gr.Button("Clear Form", variant="secondary")
+
+                    processing_status = gr.Markdown(value="Ready to process documents", visible=True)
+
+                    status_output = gr.Markdown(label="Upload Status", value="Ready to upload documents...")
+                    results_output = gr.Markdown(label="Detailed Results", value="", max_height=400)
+
+                # Delete Tab
+                with gr.TabItem("Delete Documents", id="delete_tab"):
+                    gr.Markdown("### Delete Documents")
+                    with gr.Row():
+                        with gr.Column(scale=2):
+                            file_dropdown = gr.Dropdown(label="Select Files to Delete", choices=[], multiselect=True, interactive=False, elem_classes=["delete-container"])
+                        with gr.Column(scale=1):
+                            refresh_dropdown_btn = gr.Button("Refresh File List", variant="secondary")
+
+                    with gr.Row():
+                        with gr.Column(scale=1):
+                            delete_btn = gr.Button("Delete Selected Files", variant="stop")
+                        with gr.Column(scale=1):
+                            clear_delete_btn = gr.Button("Clear Selection", variant="secondary")
+
+                    delete_status_output = gr.Markdown(label="Deletion Status", value="Select files to delete...")
+                    delete_results_output = gr.Markdown(label="Deletion Results", value="", max_height=400)
+
+                # View Tab
+                with gr.TabItem("View Uploaded Files", id="view_tab"):
+                    gr.Markdown("### Uploaded Files Management")
+                    with gr.Row():
+                        refresh_btn = gr.Button("Fetch Files", variant="primary")
+
+                    file_list_status = gr.Markdown(value="Click 'Fetch Files' to load uploaded files", visible=True)
+
+                    with gr.Row():
+                        prev_btn = gr.Button("Previous 100", variant="secondary", visible=False)
+                        pagination_info = gr.Markdown(value="Page 1 of 1 | Total: 0 files")
+                        next_btn = gr.Button("Next 100", variant="secondary", visible=False)
+
+                    file_summary = gr.Markdown(label="Files Summary", value="Click refresh to load file summary...")
+                    file_details = gr.Markdown(label="File Details", value="Click refresh to load file details...", max_height=600)
+
+        # --- EVENT HANDLERS ---
+        # Login handlers: show main_container on success, show error on failure
+        def handle_login(password):
+            if authenticate(password):
+                return gr.update(visible=False), gr.update(value="", visible=False), gr.update(visible=True)
+            else:
+                return gr.update(visible=True), gr.update(value="Invalid password. Please try again.", visible=True), gr.update(visible=False)
+
+        login_btn.click(fn=handle_login, inputs=[password_input], outputs=[login_container, error_message, main_container])
+        password_input.submit(fn=handle_login, inputs=[password_input], outputs=[login_container, error_message, main_container])
+
+        # Wiring existing handlers from earlier in the file
+        files_input.change(fn=update_metadata_fields, inputs=[files_input], outputs=metadata_fields)
+
+        upload_btn.click(fn=start_processing, outputs=[processing_status]).then(
+            fn=process_files_with_progress,
+            inputs=[files_input] + metadata_fields,
+            outputs=[status_output, results_output, processing_status]
+        )
+
+        clear_btn.click(fn=clear_form, outputs=[files_input] + metadata_fields + [status_output, results_output, processing_status])
+
+        refresh_dropdown_btn.click(fn=refresh_delete_dropdown, outputs=[file_dropdown])
+        delete_btn.click(fn=delete_selected_files, inputs=[file_dropdown], outputs=[delete_status_output, delete_results_output])
+        clear_delete_btn.click(fn=clear_delete_form, outputs=[file_dropdown, delete_status_output, delete_results_output])
+
+        refresh_btn.click(fn=refresh_file_list, outputs=[file_list_status]).then(
+            fn=list_uploaded_files_paginated,
+            inputs=[],
+            outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn]
+        )
+
+        next_btn.click(fn=load_next_page, inputs=[pagination_info], outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn])
+        prev_btn.click(fn=load_prev_page, inputs=[pagination_info], outputs=[file_summary, file_details, pagination_info, prev_btn, next_btn])
+
+    # Launch single app
+    app.launch(server_name="0.0.0.0", server_port=7860, share=False, debug=True, show_error=True)
 
 if __name__ == "__main__":
-    app.launch(
-        server_name="0.0.0.0",
-        server_port=7860,
-        share=False,
-        debug=True,
-        show_error=True
-    )
+    main()