#!/usr/bin/env python3
import subprocess
import os
import uuid
import glob
import shutil
import filecmp
import importlib.util
import sys


def select_theme():
    """
    Function to select a different theme
    """
    pass


def update_firefox():
    """
    Function to also update firefox config
    """
    pass


def main():
    # TODO
    if not os.path.isfile(os.path.join(home, ".seltheme")):
        select_theme()

    # TODO remove previous backup
    # ~/old_dat

    # TODO create new backup

    print("works")


# Set home path
home = os.path.expanduser("~")

# Check root or run as sudo
if os.getuid() != 0:
    subprocess.run("sudo -v", shell=True, check=True)

if __name__ == "__main__":
    # TODO arguments
    # -t: select theme
    # -f: update firefox config
    # -h: help

    # change to home directory
    os.chdir(home)

    # slightly random uuid for our config location
    configdir = "config-" + str(uuid.uuid1())

    # TODO remove old "config-" folder(s)
    # https://stackoverflow.com/a/70860760

    # clone git repo
    subprocess.run(
        "git clone https://gitlab.com/RealStickman-arch/config.git {configdir}".format(
            configdir=configdir
        ),
        shell=True,
        check=True,
    )

    os.chdir(configdir)
    subprocess.run(
        "git checkout master",
        shell=True,
        check=True,
        stderr=subprocess.STDOUT,
        stdout=subprocess.DEVNULL,
    )
    os.chdir(home)

    # check if downloaded script is different
    if not filecmp.cmp(
        os.path.join(home, "scripts/arch-config.py"),
        os.path.join(configdir, "scripts/arch-config.py"),
    ):
        print("Found newer config file")
        # import newer script version
        spec = importlib.util.spec_from_file_location(
            "config",
            os.path.join(configdir, "scripts/arch-config.py"),
        )
        config = importlib.util.module_from_spec(spec)
        sys.modules["config"] = config
        spec.loader.exec_module(config)
        # call new main function
        config.main()
    else:
        print("Config is up to date")
        # call main function
        main()