import os
import subprocess
import time

class DesktopEnvironment:
    def __init__(self):
        self.packages = "lxde-core lxterminal xrdp mesa-utils gnome-desktop-environment gnome-panel gnome-shell gnome-terminal"

    def install_packages(self):
        subprocess.run(['apt-get', 'update'])
        subprocess.run(['apt-get', 'install', '-y', '--no-install-recommends', self.packages])

    def configure_xrdp(self):
        subprocess.run(['echo', 'lxsession -s LXDE -e LXDE > ~/.xsession'])
        subprocess.run(['sed', '-i.bak', 's/3389/3390/g', '/etc/xrdp/xrdp.ini'])
        subprocess.run(['echo', '"crypt_level=low" >> /etc/xrdp/xrdp.ini'])
        subprocess.run(['echo', '"max_bpp=32" >> /etc/xrdp/xrdp.ini'])
        subprocess.run(['systemctl', 'enable', 'xrdp'])

    def start_services(self):
        subprocess.run(['service', 'xrdp', 'start'])
        subprocess.run(['service', 'dbus', 'start'])
        subprocess.run(['service', 'x11-common', 'start'])

    def enable_gpu_acceleration(self):
        subprocess.run(['export', 'LIBGL_ALWAYS_INDIRECT=1'])
        subprocess.run(['glxinfo', '|', 'grep', '"direct rendering"'])

    def optimize_network(self):
        subprocess.run(['sysctl', '-w', 'net.ipv4.tcp_congestion_control=bbr'])
        subprocess.run(['sysctl', '-w', 'net.core.netdev_max_backlog=5000'])
        subprocess.run(['sysctl', '-w', 'net.core.rmem_max=16777216'])
        subprocess.run(['sysctl', '-w', 'net.core.wmem_max=16777216'])

    def setup_swap(self):
        subprocess.run(['swapspace', '--create', '2048M'])
        print("Swap space created and activated.")

    def manage_resources(self):
        subprocess.run(['ulimit', '-n', '1024'])
        subprocess.run(['cpulimit', '-l', '50', '-p', '$!'])

    def setup_distributed_computing(self):
        self.install_packages("python3-dask python3-spark")
        subprocess.run(['dask-scheduler', '&'])
        subprocess.run(['dask-worker', '&'])

    def setup_firewall_rules(self):
        subprocess.run(['ufw', 'allow', 'from', '192.168.1.0/24', 'to', 'any', 'port', '3390'])
        subprocess.run(['ufw', 'deny', 'from', 'any', 'to', 'any'])

    def setup_gnome_environment(self):
        subprocess.run(['gnome-panel', '--replace', '&'])
        subprocess.run(['gnome-shell', '--replace', '&'])
        subprocess.run(['gnome-terminal', '--window', '--title', 'GNOME Terminal'])

    def setup_desktop_environment(self):
        print("Installing lightweight LXDE Desktop and XRDP server...")
        self.install_packages()

        print("Configuring XRDP server for low latency...")
        self.configure_xrdp()

        print("Starting necessary services...")
        self.start_services()

        print("Enabling GPU acceleration...")
        self.enable_gpu_acceleration()

        print("Optimizing network settings for reduced latency...")
        self.optimize_network()

        print("Setting up swap space...")
        self.setup_swap()

        print("Managing system resources...")
        self.manage_resources()

        print("Setting up distributed computing...")
        self.setup_distributed_computing()

        print("Configuring firewall rules...")
        self.setup_firewall_rules()

        print("Setting up GNOME environment...")
        self.setup_gnome_environment()

        print("Desktop environment setup complete. You can connect using an RDP client to the container's IP address.")
        print("Connect to localhost:3390 if you're using port forwarding.")

def keep_alive():
    try:
        while True:
            time.sleep(60)
    except KeyboardInterrupt:
        print("Shutdown signal received. Stopping services...")
        subprocess.run(['service', 'xrdp', 'stop'])
        print("XRDP stopped. Exiting.")

if __name__ == "__main__":
    desktop_environment = DesktopEnvironment()
    desktop_environment.setup_desktop_environment()
    keep_alive()