#!/usr/bin/env python3
"""
Development script to run the FastAPI server with database setup
"""
import os
import sys
import subprocess
from pathlib import Path

def run_command(command, cwd=None):
    """Run a command and return True if successful"""
    try:
        result = subprocess.run(command, shell=True, cwd=cwd, check=True)
        return result.returncode == 0
    except subprocess.CalledProcessError as e:
        print(f"Error running command: {command}")
        print(f"Error: {e}")
        return False

def main():
    # Ensure we're in the backend directory
    backend_dir = Path(__file__).parent
    os.chdir(backend_dir)
    
    print("🍃 Starting Grocery Tracker Backend Development Server")
    print("=" * 50)
    
    # Check if virtual environment exists
    venv_path = backend_dir / "venv"
    if not venv_path.exists():
        print("📦 Creating virtual environment...")
        if not run_command("python3 -m venv venv"):
            print("❌ Failed to create virtual environment")
            sys.exit(1)
    
    # Install dependencies
    print("📦 Installing dependencies...")
    pip_cmd = "venv/bin/pip" if os.name != 'nt' else "venv\\Scripts\\pip"
    if not run_command(f"{pip_cmd} install -r requirements.txt"):
        print("❌ Failed to install dependencies")
        sys.exit(1)
    
    # Create database tables
    print("🗄️  Creating database tables...")
    python_cmd = "venv/bin/python" if os.name != 'nt' else "venv\\Scripts\\python"
    create_tables_script = """
from models import Base
from database import engine
Base.metadata.create_all(bind=engine)
print("Database tables created successfully!")
"""
    
    with open("create_tables.py", "w") as f:
        f.write(create_tables_script)
    
    if not run_command(f"{python_cmd} create_tables.py"):
        print("⚠️  Database tables creation failed (this is normal if database doesn't exist yet)")
    
    # Clean up
    os.remove("create_tables.py")
    
    # Start the server
    print("🚀 Starting FastAPI server...")
    print("📍 API will be available at: http://localhost:8000")
    print("📚 API docs will be available at: http://localhost:8000/docs")
    print("🛑 Press Ctrl+C to stop the server")
    print("=" * 50)
    
    uvicorn_cmd = "venv/bin/uvicorn" if os.name != 'nt' else "venv\\Scripts\\uvicorn"
    run_command(f"{uvicorn_cmd} main:app --reload --host 0.0.0.0 --port 8000")

if __name__ == "__main__":
    main()