"""Setup script for first-time configuration."""

import os
import sys

def create_env_file():
    """Create .env file from template if it doesn't exist."""
    
    if os.path.exists('.env'):
        print("✅ .env file already exists")
        return
    
    if not os.path.exists('.env.example'):
        print("❌ .env.example not found")
        return
    
    print("📝 Creating .env file from template...")
    
    with open('.env.example', 'r') as f:
        content = f.read()
    
    print("\n🔑 Please provide your API keys:")
    
    gemini_key = input("Gemini API Key (required): ").strip()
    serpapi_key = input("SerpApi Key (required): ").strip()
    
    if not gemini_key or not serpapi_key:
        print("❌ Both API keys are required!")
        sys.exit(1)
    
    content = content.replace('your_gemini_api_key_here', gemini_key)
    content = content.replace('your_serpapi_key_here', serpapi_key)
    
    telegram_token = input("Telegram Bot Token (optional, press Enter to skip): ").strip()
    if telegram_token:
        content = content.replace('your_telegram_bot_token_here', telegram_token)
    
    with open('.env', 'w') as f:
        f.write(content)
    
    print("✅ .env file created successfully!")

def check_dependencies():
    """Check if all dependencies are installed."""
    
    print("\n📦 Checking dependencies...")
    
    try:
        import fastapi
        import uvicorn
        import gradio
        import langchain
        import google.generativeai
        print("✅ All core dependencies installed")
    except ImportError as e:
        print(f"❌ Missing dependency: {e}")
        print("Run: pip install -r requirements.txt")
        sys.exit(1)

def initialize_database():
    """Initialize the SQLite database."""
    
    print("\n🗄️ Initializing database...")
    
    try:
        sys.path.append('..')
        from database import db
        
        db.init_db()
        print("✅ Database initialized successfully!")
    except Exception as e:
        print(f"❌ Database initialization failed: {e}")
        sys.exit(1)

def main():
    """Run setup."""
    
    print("="*60)
    print("🚀 Rural E-commerce Suggestion Bot - Setup")
    print("="*60 + "\n")
    
    create_env_file()
    check_dependencies()
    initialize_database()
    
    print("\n" + "="*60)
    print("✨ Setup completed successfully!")
    print("="*60)
    print("\n📖 Next steps:")
    print("1. Review your .env file")
    print("2. Run: python main.py --mode all")
    print("3. Open: http://localhost:7860 (Gradio UI)")
    print("4. Check API docs: http://localhost:8000/docs")
    print("\n🎉 Happy coding!\n")

if __name__ == "__main__":
    main()