"""
Hugging Face Spaces entry point for HackRx 6.0
This file is specifically for Hugging Face Spaces deployment
"""

import os
import sys
from pathlib import Path

# Add the current directory to Python path
sys.path.append(str(Path(__file__).parent))

# Set environment variables for Hugging Face cache
os.environ.setdefault("HF_HOME", "/code/.cache/huggingface")
os.environ.setdefault("TRANSFORMERS_CACHE", "/code/.cache/huggingface")
os.environ.setdefault("HF_HUB_CACHE", "/code/.cache/huggingface")

# Create cache directory if it doesn't exist
cache_dir = "/code/.cache/huggingface"
try:
    os.makedirs(cache_dir, exist_ok=True)
except Exception as e:
    print(f"Warning: Could not create cache directory: {e}")

# Import the main app and initialize services
try:
    from main import app as main_app, lifespan
    from main import get_query_service, process_query, process_query_legacy, process_query_detailed, analyze_document, summarize_document
    
    print("✅ Successfully imported main.py app and services")
    
    # Use the main app directly
    app = main_app
    
    print("✅ Using main.py app with proper service initialization")
    
except Exception as e:
    print(f"❌ Failed to import main.py app: {e}")
    print("Creating fallback app...")
    
    # Create fallback app
    from fastapi import FastAPI, Request
    app = FastAPI(
        title="HackRx 6.0 - Intelligent Query-Retrieval System",
        description="LLM-Powered Intelligent Query-Retrieval System for HackRx 6.0",
        version="1.0.0"
    )
    
    # Add middleware to log all requests
    @app.middleware("http")
    async def log_requests(request: Request, call_next):
        print(f"🔍 Request: {request.method} {request.url.path}")
        response = await call_next(request)
        print(f"📤 Response: {response.status_code}")
        return response
    
    # Add guaranteed working endpoints
    @app.get("/")
    async def root():
        print("🎯 Root endpoint called")
        return {
            "message": "HackRx 6.0 - Intelligent Query-Retrieval System",
            "version": "1.0.0",
            "status": "fallback_mode",
            "note": "App is running in fallback mode due to initialization issues",
            "error": str(e),
            "endpoints": {
                "main": "api/v1/hackrx/run",
                "legacy": "hackrx/run", 
                "detailed": "api/v1/hackrx/run/detailed",
                "health": "health",
                "docs": "docs",
                "test": "test"
            }
        }
    
    @app.get("/health")
    async def health_check():
        print("🏥 Health endpoint called")
        return {
            "status": "fallback",
            "message": "App is running in fallback mode",
            "services": {
                "query_service": False,
                "embedding_service": False,
                "llm_service": False,
                "pinecone_service": False
            },
            "error": str(e)
        }
    
    @app.get("/test")
    async def test_endpoint():
        print("🧪 Test endpoint called")
        return {
            "message": "Test endpoint working!",
            "status": "success",
            "app_loaded": False,
            "mode": "fallback",
            "error": str(e)
        }

# For Hugging Face Spaces, we need to expose the app directly
if __name__ == "__main__":
    import uvicorn
    print("🚀 Starting HackRx 6.0 on Hugging Face Spaces...")
    uvicorn.run(app, host="0.0.0.0", port=7860)