"""
Process Utilities

Utilities for detecting and interacting with running processes/applications.
"""

import psutil
from typing import List, Dict


def is_process_running(process_name: str) -> bool:
    """
    Check if a process is currently running.
    
    Args:
        process_name: Name of the process (e.g., 'EOS Utility.exe')
        
    Returns:
        bool: True if process is running, False otherwise
    """
    try:
        for proc in psutil.process_iter(['name']):
            try:
                if proc.info['name'] and process_name.lower() in proc.info['name'].lower():
                    return True
            except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):
                pass
    except Exception as e:
        print(f"Error checking process {process_name}: {e}")
    
    return False


def check_camera_applications() -> Dict[str, bool]:
    """
    Check if required camera applications are running.
    
    Returns:
        Dict[str, bool]: Dictionary mapping application name to running status
    """
    # Common process names for camera applications
    camera_apps = {
        'EOS Utility': ['EOS Utility.exe', 'EOSUtility.exe', 'eu.exe'],
        '2nd Look': ['2ndLook.exe', 'secondlook.exe', '2nd Look.exe'],
        'AnalyzIR': ['AnalyzIR.exe', 'analyzir.exe']
    }
    
    results = {}
    for app_name, process_names in camera_apps.items():
        running = False
        for proc_name in process_names:
            if is_process_running(proc_name):
                running = True
                break
        results[app_name] = running
    
    return results


def get_running_camera_apps() -> List[str]:
    """
    Get list of camera applications that are currently running.
    
    Returns:
        List[str]: List of running camera application names
    """
    status = check_camera_applications()
    return [app for app, running in status.items() if running]


def get_missing_camera_apps() -> List[str]:
    """
    Get list of camera applications that are not running.
    
    Returns:
        List[str]: List of camera application names that are not running
    """
    status = check_camera_applications()
    return [app for app, running in status.items() if not running]