import subprocess
import sys
import os
import time
from datetime import datetime

def check_dependencies():
    """Check if all required dependencies are installed"""
    required_packages = [
        'streamlit', 'pandas', 'numpy', 'plotly', 
        'python-dateutil', 'pytz', 'openpyxl', 
        'watchdog', 'python-dotenv', 'pydantic', 
        'sqlalchemy', 'psycopg2-binary', 'bcrypt', 'jinja2'
    ]
    
    missing_packages = []
    for package in required_packages:
        try:
            __import__(package)
        except ImportError:
            missing_packages.append(package)
    
    return missing_packages

def install_package(package_name):
    """Install a Python package using pip"""
    try:
        subprocess.check_call([sys.executable, "-m", "pip", "install", package_name])
        return True
    except subprocess.CalledProcessError:
        return False

def create_virtual_environment(env_name="venv"):
    """Create a virtual environment"""
    try:
        subprocess.check_call([sys.executable, "-m", "venv", env_name])
        return True
    except subprocess.CalledProcessError:
        return False

def setup_database():
    """Setup database configuration"""
    # This is a placeholder function
    # In a real application, this would configure database connections
    return True

def log_message(message, level="info"):
    """Log messages with timestamp"""
    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    log_entry = f"[{timestamp}] [{level.upper()}] {message}"
    
    # Print to console
    print(log_entry)
    
    # In a real application, you might write to a log file
    # with open("installation.log", "a") as f:
    #     f.write(log_entry + "\n")
    
    return log_entry

def validate_python_version():
    """Validate Python version"""
    import platform
    version = platform.python_version()
    major, minor, patch = map(int, version.split('.'))
    
    if major < 3 or (major == 3 and minor < 11):
        return False, f"Python 3.11+ required, but found {version}"
    return True, f"Python {version} is compatible"

def test_database_connection(config):
    """Test database connection"""
    # This is a placeholder function
    # In a real application, this would test the actual database connection
    return True, "Database connection successful"<|end_of_box|>
<|begin_of_box|>