import json
import os.path
import subprocess


def save_settings(settings, root_pass):
    settings_dir = "/etc/excon_helper"
    settings_file = os.path.join(settings_dir, ".settings.json")
    temp_file = "/tmp/.settings.json"  # Temporäre Datei

    # Temporäre Datei lokal schreiben
    with open(temp_file, "w") as temp:
        json.dump(settings, temp, indent=4)

    # Befehle zum Erstellen des Zielverzeichnisses und Kopieren der Datei
    commands = [
        f"mkdir -p {settings_dir}",
        f"cp {temp_file} {settings_file}",
        f"chmod 777 {settings_file}",
        f"rm {temp_file}"  # Temporäre Datei entfernen
    ]

    for command in commands:
        try:
            # Übergebe das Passwort an `sudo` und führe den Befehl aus
            process = subprocess.run(
                f"echo {root_pass} | sudo -S {command}",
                shell=True
            )
            if process.returncode != 0:
                print(f"Cant save settings file")
                return False
        except Exception as e:
            print(f"Error: {e}")
            return False

    return True

def load_settings():
    settings_file = "/etc/excon_helper/.settings.json"

    # Überprüfen, ob die Datei existiert
    if not os.path.exists(settings_file):
        print(f"Error: Settings file doesnt exist")
        return {}

    # Lesen der JSON-Datei
    try:
        with open(settings_file, "r") as file:
            settings = json.load(file)
        return settings
    except json.JSONDecodeError:
        print("Error: Corrupted json file")
    except PermissionError:
        print("Error: no permission to read the file")
    except Exception as e:
        print(f"Unknown error: {e}")

    return {}

def get_setting(key):
    settings = load_settings()
    if settings is not None:
        return settings.get(key)
    return None

def set_setting(key, value):
    settings = load_settings()
    settings.set(key, value)
    save_settings(settings)