"""
Validation utilities for the Edison application.
"""
import re
import logging

logger = logging.getLogger(__name__)

def is_dangerous_command(command):
    """
    Check if a command contains potentially dangerous operations.
    
    Args:
        command (str): The command to check.
        
    Returns:
        bool: True if the command is potentially dangerous, False otherwise.
    """
    dangerous_patterns = [
        r"rm\s+-rf\s+/",  # Remove recursively from root
        r"sudo\s+rm",      # Sudo remove
        r"chmod\s+777",    # Chmod 777 (too permissive)
        r">\s+/dev/",      # Redirect to device
        r">\s+/etc/",      # Redirect to system config
        r"mkfs",           # Format filesystem
        r"dd\s+if=",       # Disk destroyer
        r":(){:\|:};:",    # Fork bomb
    ]
    
    for pattern in dangerous_patterns:
        if re.search(pattern, command, re.IGNORECASE):
            logger.warning(f"Potentially dangerous command detected: {command}")
            return True
    
    return False

def check_for_issue(response):
    """
    Checks the given response for any issues.
    
    Args:
        response (str): The response to check.
        
    Returns:
        bool: True if there's an issue, False otherwise.
    """
    prefixes = ("sorry", "i'm sorry", "the question is not clear", "i'm", "i am")
    return response.lower().startswith(prefixes)

def check_for_markdown(response):
    """
    Checks for the presence of markdown formatting in the response.
    
    Args:
        response (str): The response to check.
        
    Returns:
        bool: True if markdown is detected, False otherwise.
    """
    return response.count("```", 2)