#!/usr/bin/env python3
"""
Hugging Face Space app for Second Brain AI Assistant.

Direct implementation for HF Space deployment.
"""

import os
import sys
from pathlib import Path

# Add the current directory and src directory to Python path
sys.path.append('.')
sys.path.append('src')

from second_brain_online.application.agents import get_agent
from second_brain_online.application.ui import CustomGradioUI

# Try to import opik_utils, but handle import errors gracefully
try:
    from second_brain_online import opik_utils
    OPIK_UTILS_AVAILABLE = True
except ImportError as e:
    print(f"⚠️  OPIK utils not available: {e}")
    opik_utils = None
    OPIK_UTILS_AVAILABLE = False

def main():
    """Main function for Hugging Face Space deployment."""
    # Set default values for HF Spaces
    retriever_config_path = os.getenv("RETRIEVER_CONFIG_PATH", "configs/compute_rag_vector_index_openai_contextual.yaml")
    
    print("🚀 Starting Second Brain AI Assistant...")
    print(f"📁 Using retriever config: {retriever_config_path}")
    
    # Debug: Check environment variables
    print("🔍 Environment variables check:")
    print(f"  COMET_API_KEY: {'SET' if os.getenv('COMET_API_KEY') else 'NOT SET'}")
    print(f"  COMET_PROJECT: {os.getenv('COMET_PROJECT', 'NOT SET')}")
    print(f"  OPENAI_API_KEY: {'SET' if os.getenv('OPENAI_API_KEY') else 'NOT SET'}")
    print(f"  MONGODB_URI: {'SET' if os.getenv('MONGODB_URI') else 'NOT SET'}")
    
    # Configure OPIK (optional - will use default project if COMET_PROJECT not set)
    if OPIK_UTILS_AVAILABLE:
        try:
            opik_utils.configure()
            print("✅ OPIK configured successfully")
        except Exception as e:
            print(f"⚠️  OPIK configuration failed: {e}")
    else:
        print("⚠️  OPIK utils not available, skipping configuration")
    
    try:
        # Initialize agent
        agent = get_agent(retriever_config_path=Path(retriever_config_path))
        
        # Pass the AgentWrapper directly so it uses our custom run() method with extraction logic
        # Launch custom UI
        CustomGradioUI(agent).launch(
            server_name="0.0.0.0",
            server_port=7860,
            share=False
        )
    except Exception as e:
        print(f"❌ Error starting the application: {e}")
        raise

if __name__ == "__main__":
    main()