#sysinfo.py
#Version : 0.1.0
import os
import sys
import subprocess
import cpuinfo
import json
import psutil
import platform
import distro
import socket
import logging
import argparse
from datetime import datetime

try:
    import GPUtil
    gpu_available = True
except ImportError:
    gpu_available = False

# Farben für Debug-Logging
class LogColors:
    INFO = "\033[94m"
    DEBUG = "\033[92m"
    WARNING = "\033[93m"
    ERROR = "\033[91m"
    RESET = "\033[0m"

# Logging einrichten
LOG_FILE = os.path.expanduser("~/hardware_info.log")
logging.basicConfig(
    filename=LOG_FILE,
    level=logging.INFO,
    format="%(asctime)s - %(levelname)s - %(message)s"
)

def log_message(level, message):
    """Loggt Nachrichten mit Farben für die CLI, falls Debug aktiv ist."""
    if level == "info":
        logging.info(message)
        if args.debug:
            print(f"{LogColors.INFO}[INFO]{LogColors.RESET} {message}")
    elif level == "debug":
        logging.debug(message)
        if args.debug:
            print(f"{LogColors.DEBUG}[DEBUG]{LogColors.RESET} {message}")
    elif level == "warning":
        logging.warning(message)
        if args.debug:
            print(f"{LogColors.WARNING}[WARNING]{LogColors.RESET} {message}")
    elif level == "error":
        logging.error(message)
        if args.debug:
            print(f"{LogColors.ERROR}[ERROR]{LogColors.RESET} {message}")

def get_hardware_info():
    """Sammelt die relevanten Hardware- und Systeminformationen."""
    hardware_info = {}
    
    # Betriebssystem
    log_message("info", "Sammle Betriebssystem-Daten...")
    try:
        os_info = {
            "name": platform.system(),
            "distribution": distro.name(pretty=True)
        }
        log_message("info", f"OS: {os_info['name']} - {os_info['distribution']}")
    except Exception as e:
        os_info = {}
        log_message("warning", f"Konnte Betriebssystem-Daten nicht ermitteln: {str(e)}")
    hardware_info["os"] = os_info

    # CPU
    log_message("info", "Sammle CPU-Daten...")
    try:
        cpu_info = {
            "model": cpuinfo.get_cpu_info().get('brand_raw', 'Unbekannt'),
            "cores": psutil.cpu_count(logical=False),
            "threads": psutil.cpu_count(logical=True),
            "usage": psutil.cpu_percent(interval=1)
        }
        log_message("info", f"CPU: {cpu_info['model']} - {cpu_info['cores']} Cores, {cpu_info['threads']} Threads - {cpu_info['usage']}% Auslastung")
    except Exception as e:
        cpu_info = {}
        log_message("warning", f"Konnte CPU-Daten nicht ermitteln: {str(e)}")
    hardware_info["cpu"] = cpu_info

    # RAM
    log_message("info", "Sammle RAM-Daten...")
    try:
        ram_info = {
            "total": round(psutil.virtual_memory().total / (1024**3), 2),
            "used": round(psutil.virtual_memory().used / (1024**3), 2),
            "available": round(psutil.virtual_memory().available / (1024**3), 2)
        }
        log_message("info", f"RAM: {ram_info['total']}GB gesamt, {ram_info['used']}GB genutzt, {ram_info['available']}GB verfügbar")
    except Exception as e:
        ram_info = {}
        log_message("warning", f"Konnte RAM-Daten nicht ermitteln: {str(e)}")
    hardware_info["ram"] = ram_info

    # Festplatte
    log_message("info", "Sammle Festplattendaten...")
    try:
        disk_info = {
            "total": round(psutil.disk_usage('/').total / (1024**3), 2),
            "used": round(psutil.disk_usage('/').used / (1024**3), 2),
            "free": round(psutil.disk_usage('/').free / (1024**3), 2)
        }
        log_message("info", f"Disk: {disk_info['total']}GB gesamt, {disk_info['used']}GB genutzt, {disk_info['free']}GB frei")
    except Exception as e:
        disk_info = {}
        log_message("warning", f"Konnte Festplatten-Daten nicht ermitteln: {str(e)}")
    hardware_info["disk"] = disk_info

    log_message("info", "Sammle Netzwerkinformationen...")
    try:
        network_info = {
            "hostname": socket.gethostname(),
            "ip_address": socket.gethostbyname(socket.gethostname())
        }
        log_message("info", f"Netzwerk: Hostname {network_info['hostname']}, IP {network_info['ip_address']}")
    except Exception as e:
        network_info = {}
        log_message("warning", f"Konnte Netzwerkinformationen nicht ermitteln: {str(e)}")
    hardware_info["network"] = network_info

    log_message("info", "Sammle Benutzerinformationen...")
    try:
        user_info = {
            "logged_in": [user.name for user in psutil.users()],
            "active_user": os.getlogin()
        }
        log_message("info", f"Benutzer: {', '.join(user_info['logged_in'])}, Aktiver User: {user_info['active_user']}")
    except Exception as e:
        user_info = {}
        log_message("warning", f"Konnte Benutzerinformationen nicht ermitteln: {str(e)}")
    hardware_info["users"] = user_info

    log_message("info", "Sammle dedizierte GPU-Daten...")
    gpu_info = []
    try:
        if gpu_available:
            gpus = GPUtil.getGPUs()
            for gpu in gpus:
                gpu_info.append({
                    "name": gpu.name,
                    "memory_total": f"{gpu.memoryTotal}MB",
                    "memory_used": f"{gpu.memoryUsed}MB",
                    "memory_free": f"{gpu.memoryFree}MB",
                    "load": f"{gpu.load * 100:.1f}%"
                })
            log_message("info", f"Gefundene GPUs: {len(gpus)}")
        else:
            log_message("warning", "GPUtil nicht installiert oder keine dedizierte GPU vorhanden.")
    except Exception as e:
        log_message("warning", f"Konnte GPU-Daten nicht ermitteln: {str(e)}")
    hardware_info["gpu"] = gpu_info

    log_message("info", "Hardware-Informationen erfolgreich erfasst.")
    return hardware_info

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Ermittelt Hardware- und Systeminformationen.")
    parser.add_argument("--debug", action="store_true", help="Aktiviert Debug-Logging auf der CLI.")
    parser.add_argument("--json", type=str, help="Speichert die Ausgabe in einer JSON-Datei.")
    args = parser.parse_args()

    # Hardware-Informationen abrufen
    hardware_info = get_hardware_info()

    if args.json:
        try:
            with open(args.json, "w") as json_file:
                json.dump(hardware_info, json_file, indent=4)
            log_message("info", f"Hardware-Infos in JSON gespeichert: {args.json}")
        except Exception as e:
            log_message("error", f"Fehler beim Speichern der JSON-Datei: {str(e)}")