api endpoints for UI migration v9

ENTRY_POINT_RESOLUTION.md

@@ -0,0 +1,178 @@
+# Entry Point Conflict Resolution
+
+## Problem Resolved
+
+**Issue**: Both `app.py` and `main.py` were attempting to launch Gradio on port 7860, causing port conflicts.
+
+**Root Cause**: 
+- `app.py` has a `if __name__ == "__main__":` block that launches Gradio
+- `main.py` was also trying to create and launch its own Gradio instance
+- Both tried to bind to port 7860 simultaneously
+
+## Solution Implemented
+
+### Single Entry Point Architecture
+
+**For Hugging Face Spaces Deployment:**
+- `main.py` is the **only entry point** (configured in `README.md` as `app_file: main.py`)
+- `main.py` imports the interface from `app.py` without triggering its launch
+- `main.py` handles the launch configuration
+
+**For Local Development/Testing:**
+- `app.py` can still be run directly (`python app.py`)
+- When run directly, `app.py` launches with its own configuration
+- This allows developers to test the app independently
+
+## How It Works
+
+### Import Behavior in Python
+
+When `main.py` imports from `app.py`:
+```python
+from app import create_mobile_optimized_interface
+```
+
+- ✅ All top-level code in `app.py` executes (orchestrator initialization, etc.)
+- ✅ The function `create_mobile_optimized_interface()` becomes available
+- ❌ The `if __name__ == "__main__":` block does **NOT** execute (because `__name__` != `"__main__"` when imported)
+
+### Current Structure
+
+```
+app.py:
+  - Defines: create_mobile_optimized_interface()  ← Returns (demo, components)
+  - Has: if __name__ == "__main__": launch code   ← Only runs when app.py executed directly
+  
+main.py:
+  - Imports: create_mobile_optimized_interface() from app.py
+  - Calls: demo, components = create_mobile_optimized_interface()
+  - Launches: demo.launch() with HF Spaces configuration
+```
+
+## File Roles
+
+### `app.py`
+- **Purpose**: Core application interface and logic
+- **When imported**: Provides interface creation function
+- **When executed directly**: Launches app for local testing
+- **Launch configuration**: Local-optimized (with share link for external access when not on HF Spaces)
+
+### `main.py`
+- **Purpose**: HF Spaces entry point
+- **When executed**: Imports from app.py and launches
+- **Launch configuration**: HF Spaces-optimized (detects environment, adjusts share setting)
+- **HF Spaces requirement**: Must be specified as `app_file: main.py` in README.md
+
+## Configuration
+
+### Hugging Face Spaces Setup
+
+In `README.md`:
+```yaml
+sdk: gradio
+app_file: main.py  # ← This tells HF Spaces to use main.py
+```
+
+### Environment Detection
+
+Both files automatically detect if running on HF Spaces:
+
+```python
+try:
+    from spaces import GPU
+    is_hf_spaces = True
+except ImportError:
+    is_hf_spaces = False
+```
+
+**On HF Spaces:**
+- `share=False` (HF Spaces provides its own URL)
+- No warnings about share being unsupported
+
+**Locally:**
+- `share=True` (creates Gradio public link for external access)
+
+## Benefits
+
+1. ✅ **No Port Conflicts**: Only one Gradio instance launches
+2. ✅ **Clean Separation**: Interface logic (app.py) vs. Launch logic (main.py)
+3. ✅ **Flexible Testing**: Can test app.py independently
+4. ✅ **HF Spaces Compatible**: Follows HF Spaces deployment patterns
+5. ✅ **Environment Aware**: Automatically adjusts configuration based on deployment environment
+
+## Verification
+
+### Check That Only One Instance Launches
+
+When running on HF Spaces:
+```bash
+# Should see only one launch message:
+"✅ Application ready for launch"
+```
+
+### Check Port Binding
+
+```bash
+# Should only see one process on port 7860
+netstat -ano | findstr :7860  # Windows
+lsof -i :7860                  # Linux/Mac
+```
+
+### Check Logs
+
+**When main.py is entry point (HF Spaces):**
+```
+🚀 Starting AI Research Assistant MVP
+Creating interface from app.py (all handlers already initialized)...
+✓ Interface created with all API endpoints and handlers
+✓ Detected Hugging Face Spaces - using built-in public URL
+✅ Application ready for launch
+```
+
+**When app.py is executed directly (local):**
+```
+STARTING APP (direct execution)
+✓ Interface created
+LAUNCHING GRADIO APP
+Creating public Gradio share link for external access...  (if not on HF Spaces)
+```
+
+## Troubleshooting
+
+### Issue: Port Still in Use
+
+**Check:**
+1. Only one entry point is being executed
+2. No other Python processes using port 7860
+3. Previous Gradio instance was properly terminated
+
+**Solution:**
+```bash
+# Kill any existing Python processes
+taskkill /IM python.exe /F  # Windows
+pkill -f python             # Linux/Mac
+```
+
+### Issue: app.py Launching When Imported
+
+**Check:** Verify `if __name__ == "__main__":` block is present and correctly indented
+
+**Solution:** This should never happen - Python's import mechanism prevents it. If it does, check for syntax errors or circular imports.
+
+### Issue: API Endpoints Not Available
+
+**Check:**
+1. `show_api=True` is set in launch configuration
+2. API endpoints are registered in app.py (before import)
+3. Both files use the same demo instance
+
+**Solution:** The demo instance is created in app.py and used by main.py, so endpoints should be available. Verify logs show "✓ API endpoint registered" messages.
+
+## Summary
+
+✅ **Conflict resolved**: Single entry point architecture  
+✅ **Port conflict eliminated**: Only main.py launches Gradio  
+✅ **Environment aware**: Automatically detects HF Spaces vs. local  
+✅ **Flexible**: Can still run app.py directly for testing  
+✅ **Production ready**: Follows HF Spaces deployment best practices
+

GRADIO_API_CONFLICT_DIAGNOSIS.md

@@ -213,7 +213,8 @@ demo.launch(
 **Common HF Spaces Issues:**
 - Port 7860 is required (cannot be changed on HF Spaces)
 - `server_name="0.0.0.0"` is correct
-- `share=True` creates an additional public link (HF Spaces also provides its own URL)
+- `share=True` is automatically disabled on HF Spaces (they provide their own public URL)
+- The code automatically detects HF Spaces and disables share to prevent warnings
 
 ---
 
@@ -317,10 +318,12 @@ python verify_api_endpoint.py http://localhost:7860
 ### Current Launch Configuration (app.py:2109-2116)
 
 ```python
+# Automatically detects HF Spaces and adjusts share setting
+use_share = not SPACES_GPU_AVAILABLE  # False on HF Spaces, True locally
 demo.launch(
     server_name="0.0.0.0",        # Accept connections from all interfaces
     server_port=7860,              # Default Gradio port
-    share=True,                    # Creates public Gradio link for external access
+    share=use_share,               # Auto: True locally, False on HF Spaces
     show_api=True,                 # Enable API endpoints
     allowed_paths=[],              # Security: don't serve files
     blocked_paths=["/tmp", "/var", "/etc", "/home"]  # Block sensitive paths

app.py

@@ -2065,9 +2065,12 @@ def initialize_orchestrator():
 # Try to initialize orchestrator
 initialize_orchestrator()
 
+# Entry point - can be run directly or imported by main.py
+# When imported, only the interface creation runs (no launch)
+# When run directly, the full app launches (for local testing)
 if __name__ == "__main__":
     logger.info("=" * 60)
-    logger.info("STARTING APP")
+    logger.info("STARTING APP (direct execution)")
     logger.info("=" * 60)
     
     demo, components = create_mobile_optimized_interface()
@@ -2106,11 +2109,19 @@ if __name__ == "__main__":
     logger.info("LAUNCHING GRADIO APP")
     logger.info("=" * 60)
     logger.info("API endpoints available at: http://<host>:7860/api/")
-    logger.info("Creating public Gradio share link for external access...")
+    
+    # Determine if we should create a share link
+    # HF Spaces provides its own public URL, so share is not needed there
+    use_share = not SPACES_GPU_AVAILABLE
+    if use_share:
+        logger.info("Creating public Gradio share link for external access...")
+    else:
+        logger.info("Running on HF Spaces - using built-in public URL (share disabled)")
+    
     demo.launch(
         server_name="0.0.0.0",
         server_port=7860,
-        share=True,  # Creates public Gradio link for external access
+        share=use_share,  # Only create share link when not on HF Spaces
         show_api=True,  # Explicitly enable API (recommended for API access)
         allowed_paths=[],  # Empty list = don't serve any files (prevents file URLs)
         blocked_paths=["/tmp", "/var", "/etc", "/home"]  # Explicitly block sensitive paths (extra security)

main.py

@@ -120,63 +120,48 @@ def create_event_handlers(demo, components):
     
     return get_response_handler
 
-def setup_application():
-    """Setup and return the Gradio application"""
-    logger.info("Starting application setup...")
-    
-    # Initialize components
-    components = initialize_components()
-    
-    # Create the interface
-    logger.info("Creating mobile-optimized interface...")
-    demo = create_mobile_optimized_interface()
-    
-    # Setup event handlers
-    logger.info("Setting up event handlers...")
-    
-    # For now, use a simple chat interface until full integration is ready
-    try:
-        # Get the chat function from the demo
-        chat_interface = demo.get_blocks().children[0]  # Get first component
-        
-        # Simple message handling for MVP
-        def simple_chat_fn(message, history):
-            if components.get('mock_mode'):
-                return f"I'm running in mock mode. You said: {message}"
-            else:
-                return f"System is processing: {message}"
-        
-        # Set the chat function
-        if hasattr(chat_interface, 'chat_fn'):
-            chat_interface.chat_fn = simple_chat_fn
-        
-    except Exception as e:
-        logger.warning(f"Could not setup advanced handlers: {e}")
-    
-    logger.info("Application setup completed")
-    return demo
-
 def main():
     """Main entry point for HF Spaces"""
     logger.info("🚀 Starting AI Research Assistant MVP")
+    logger.info("=" * 60)
     
     # Check for HF Token
     hf_token = os.getenv('HF_TOKEN')
     if not hf_token:
         logger.warning("HF_TOKEN not found in environment. Some features may be limited.")
     
-    # Create and launch application
-    demo = setup_application()
+    # Import the already-configured interface from app.py
+    # This imports the interface without triggering app.py's launch code
+    # (app.py's launch only runs when app.py is executed directly, not when imported)
+    logger.info("Creating interface from app.py (all handlers already initialized)...")
+    demo, components = create_mobile_optimized_interface()
+    
+    logger.info("✓ Interface created with all API endpoints and handlers")
+    
+    # Detect if running on HF Spaces
+    # HF Spaces provides its own public URL, so share is not needed
+    try:
+        from spaces import GPU
+        is_hf_spaces = True
+        logger.info("✓ Detected Hugging Face Spaces - using built-in public URL")
+    except ImportError:
+        is_hf_spaces = False
+        logger.info("✓ Local deployment - will create Gradio share link if needed")
     
-    # Launch configuration for HF Spaces
+    # Launch configuration
+    # Note: show_api=True is already set in app.py's interface creation,
+    # but we ensure it here as well for clarity
     launch_config = {
         'server_name': '0.0.0.0',
         'server_port': 7860,
-        'share': True,  # Creates public Gradio link for external access
+        'share': not is_hf_spaces,  # Only create share link when not on HF Spaces
+        'show_api': True,  # Enable API endpoints (also set in app.py, but explicit here)
         'debug': False
     }
     
+    logger.info("=" * 60)
     logger.info("✅ Application ready for launch")
+    logger.info("=" * 60)
     return demo.launch(**launch_config)
 
 if __name__ == "__main__":