#!/usr/bin/env python3
"""
Skript zum Hinzufügen von head-matter in /opt/ypchat/wt_config.xml
um das robots Meta-Tag auf index,follow zu setzen
"""

import sys
import xml.etree.ElementTree as ET
from datetime import datetime
import shutil

CONFIG_FILE = "/opt/ypchat/wt_config.xml"
BACKUP_FILE = f"{CONFIG_FILE}.backup.{datetime.now().strftime('%Y%m%d_%H%M%S')}"

print("=== Backup erstellen ===")
shutil.copy2(CONFIG_FILE, BACKUP_FILE)
print(f"Backup erstellt: {BACKUP_FILE}")

print("\n=== Parse XML ===")
tree = ET.parse(CONFIG_FILE)
root = tree.getroot()

print("\n=== Prüfe, ob head-matter bereits existiert ===")
for app in root.findall(".//application"):
    if app.find("head-matter") is not None:
        print("WARNUNG: <head-matter> existiert bereits!")
        sys.exit(1)

print("\n=== Füge head-matter hinzu ===")
for app in root.findall(".//application"):
    head_matter = ET.SubElement(app, "head-matter")
    meta = ET.SubElement(head_matter, "meta")
    meta.set("name", "robots")
    meta.set("content", "index,follow")
    print(f"Hinzugefügt zu application path='{app.get('path', '/')}'")

print("\n=== Speichere geänderte Konfiguration ===")
tree.write(CONFIG_FILE, encoding="UTF-8", xml_declaration=True)

print("\n=== Geänderte Konfiguration anzeigen ===")
with open(CONFIG_FILE, 'r') as f:
    for line in f:
        if 'head-matter' in line or 'robots' in line:
            print(line.rstrip())

print("\n=== Fertig! ===")
print("Bitte Service neu starten: sudo systemctl restart ypchat.service")