"""
Command line execution tool for Clover - A terminal assistant for AI-powered project management
"""

import subprocess
import sys
import os
from pathlib import Path

def commandline(command, allow_execution=True):
    """
    Execute a system command with user permission.

    Args:
        command (str): The command to execute
        allow_execution (bool): Whether execution is allowed (default: True)

    Returns:
        str: Output of the command or permission prompt

    Raises:
        PermissionError: If execution is not permitted
        subprocess.CalledProcessError: If command execution fails
    """
    if not allow_execution:
        return f"Command execution denied. Would execute: {command}"

    try:
        print(f"Executing command: {command}")

        # Execute the command
        result = subprocess.run(
            command,
            shell=True,
            check=True,
            text=True,
            capture_output=True,
            timeout=300  # 5 minute timeout
        )

        return result.stdout

    except subprocess.CalledProcessError as e:
        error_msg = f"Command failed with return code {e.returncode}\n"
        if e.stderr:
            error_msg += f"Error output: {e.stderr}"
        return error_msg

    except subprocess.TimeoutExpired:
        return "Command timed out after 300 seconds"

    except Exception as e:
        return f"Error executing command '{command}': {str(e)}"

def safe_execute(command, permission_prompt=True):
    """
    Safely execute a system command with optional permission prompt.

    Args:
        command (str): The command to execute
        permission_prompt (bool): Whether to prompt for permission

    Returns:
        str: Command output or permission denial message
    """
    if permission_prompt:
        print(f"Permission needed to run: {command}")
        response = input("Allow execution? (y/N): ")
        if response.lower() not in ['y', 'yes']:
            return "Execution denied by user"

    return commandline(command)

# Example usage function
def example_usage():
    """
    Example of how to use the command line tool.
    """
    print("Command Line Tool Examples:")

    # Example 1: Safe execution with prompt
    result = safe_execute("echo 'Hello, Clover!'")
    print(f"Result: {result}")

    # Example 2: Direct execution
    result = commandline("ls -la")
    print(f"Directory listing: {result}")

if __name__ == "__main__":
    example_usage()