import logging
import time
import platform

# Configure logging
logging.basicConfig(filename='logs/power_saving.log', level=logging.INFO, 
                    format='%(asctime)s - %(levelname)s - %(message)s')

class PowerManager:
    def __init__(self):
        self.system = platform.system()
        logging.info("Power Manager initialized.")

    def scale_cpu_frequency(self, percentage):
        """Simulates scaling CPU frequency.  In a real system, this would involve OS-specific calls."""
        logging.info(f"CPU Frequency scaled to {percentage}%")
        print(f"CPU Frequency scaled to {percentage}%") # For demonstration

    def dim_display(self, percentage):
        """Simulates dimming the display. In a real system, this would involve OS-specific calls."""
        logging.info(f"Display dimmed to {percentage}%")
        print(f"Display dimmed to {percentage}%") # For demonstration

    def change_network_polling(self, interval):
        """Simulates changing network polling interval. In a real system, this would involve OS-specific calls."""
        logging.info(f"Network polling interval changed to {interval} seconds")
        print(f"Network polling interval changed to {interval} seconds") # For demonstration

    def log_power_consumption(self):
        """Simulates logging power consumption.  In a real system, this would read from hardware sensors."""
        # This is a placeholder.  Actual implementation depends on hardware access.
        # For example, on Linux, you might use psutil to get CPU/memory usage and estimate power.
        # On embedded systems, you might read directly from power monitoring ICs.
        if self.system == 'Linux':
            try:
                import psutil
                cpu_percent = psutil.cpu_percent()
                memory_percent = psutil.virtual_memory().percent
                # This is a VERY rough estimate and should be replaced with real measurements
                estimated_power = cpu_percent * 0.5 + memory_percent * 0.2  # Placeholder calculation
                logging.info(f"Estimated power consumption: {estimated_power} units")
                print(f"Estimated power consumption: {estimated_power} units") # For demonstration
            except ImportError:
                logging.warning("psutil not installed. Cannot log power consumption.")
                print("psutil not installed. Cannot log power consumption.")
        else:
            logging.info("Power consumption logging not supported on this platform.")
            print("Power consumption logging not supported on this platform.")


if __name__ == '__main__':
    pm = PowerManager()
    pm.scale_cpu_frequency(50)
    pm.dim_display(30)
    pm.change_network_polling(10)
    pm.log_power_consumption()
    time.sleep(5)
    pm.log_power_consumption()