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"""

QEMU Installation Helper Script

This script helps install QEMU and its Python dependencies

"""

import subprocess
import sys
import os
import platform
from pathlib import Path

def check_qemu_installation():
    """Check if QEMU is installed"""
    try:
        result = subprocess.run(['qemu-system-x86_64', '--version'], 
                              capture_output=True, text=True)
        if result.returncode == 0:
            print(f"QEMU is installed: {result.stdout.split()[3]}")
            return True
    except FileNotFoundError:
        return False
    return False

def install_qemu_windows():
    """Install QEMU on Windows"""
    print("Please install QEMU manually on Windows:")
    print("1. Download QEMU installer from https://qemu.weilnetz.de/w64/")
    print("2. Run the installer")
    print("3. Add QEMU to your PATH")
    print("\nAfter installation, run this script again to verify the installation")

def install_qemu_linux():
    """Install QEMU on Linux"""
    try:
        subprocess.run(['sudo', 'apt-get', 'update'], check=True)
        subprocess.run(['sudo', 'apt-get', 'install', '-y',
                      'qemu-system-x86',
                      'qemu-utils',
                      'qemu-system-common',
                      'libvirt-dev'], check=True)
    except subprocess.CalledProcessError as e:
        print(f"Error installing QEMU: {e}")
        sys.exit(1)

def install_python_dependencies():
    """Install Python dependencies"""
    requirements_path = Path(__file__).parent / 'requirements.txt'
    try:
        subprocess.run([sys.executable, '-m', 'pip', 'install', '-r', 
                       str(requirements_path)], check=True)
        print("Python dependencies installed successfully")
    except subprocess.CalledProcessError as e:
        print(f"Error installing Python dependencies: {e}")
        sys.exit(1)

def main():
    """Main installation function"""
    system = platform.system().lower()
    
    print("Checking QEMU installation...")
    if not check_qemu_installation():
        print("QEMU is not installed")
        if system == 'windows':
            install_qemu_windows()
        elif system == 'linux':
            install_qemu_linux()
        else:
            print(f"Unsupported system: {system}")
            sys.exit(1)
    
    print("\nInstalling Python dependencies...")
    install_python_dependencies()
    
    print("\nVerifying installation...")
    if check_qemu_installation():
        print("QEMU installation verified successfully")
    else:
        print("QEMU installation verification failed")
        sys.exit(1)

if __name__ == '__main__':
    main()