Refactor code structure for improved readability and maintainability

routes/system_routes.py

@@ -0,0 +1,86 @@
+"""PiCopy – Blueprint: /api/sysinfo, /api/update/*, /api/format/*, /api/system/*."""
+
+import subprocess
+import threading
+
+from flask import Blueprint, jsonify, request
+
+from picopy.usb import usb_devices
+from picopy.state import copy_state
+from picopy.system import (
+    get_sysinfo, update_state, update_lock,
+    format_state, FORMAT_FILESYSTEMS,
+    check_for_updates, install_update, do_format,
+)
+
+system_bp = Blueprint('system', __name__)
+
+
+@system_bp.route('/api/sysinfo')
+def r_sysinfo():
+    return jsonify(get_sysinfo())
+
+
+@system_bp.route('/api/update/status')
+def r_update_status():
+    with update_lock:
+        return jsonify(dict(update_state))
+
+
+@system_bp.route('/api/update/check', methods=['POST'])
+def r_update_check():
+    threading.Thread(target=check_for_updates, daemon=True).start()
+    return jsonify(ok=True)
+
+
+@system_bp.route('/api/update/install', methods=['POST'])
+def r_update_install():
+    from picopy.config import log
+    try:
+        install_update()
+        return jsonify(ok=True)
+    except SyntaxError as e:
+        return jsonify(error=f'Update-Datei ungültig: {e}'), 500
+    except Exception as e:
+        log.exception('Update fehlgeschlagen')
+        return jsonify(error=str(e)), 500
+
+
+@system_bp.route('/api/format/status')
+def r_format_status():
+    return jsonify(dict(format_state))
+
+
+@system_bp.route('/api/format', methods=['POST'])
+def r_format():
+    if format_state['running']:
+        return jsonify(error='Formatierung läuft bereits'), 409
+    if copy_state.get('running'):
+        return jsonify(error='Kopiervorgang läuft – bitte warten'), 409
+
+    body  = request.get_json(force=True)
+    fs    = body.get('fs', '').lower()
+    name  = (body.get('name') or 'PICOPY').upper()
+    dev   = body.get('device', '')
+
+    if fs not in FORMAT_FILESYSTEMS:
+        return jsonify(error=f'Unbekanntes Dateisystem: {fs}'), 400
+    if not dev.startswith('/dev/'):
+        return jsonify(error='Ungültiges Gerät'), 400
+
+    # Sicherheitscheck: Gerät muss ein bekanntes USB-Gerät sein
+    known = [d['device'] for d in usb_devices()]
+    if dev not in known:
+        return jsonify(error='Gerät nicht als USB-Laufwerk erkannt'), 400
+
+    threading.Thread(target=do_format, args=(fs, name, dev), daemon=True).start()
+    return jsonify(ok=True)
+
+
+@system_bp.route('/api/system/reboot', methods=['POST'])
+def r_system_reboot():
+    threading.Thread(target=lambda: (
+        __import__('time').sleep(1),
+        subprocess.Popen(['reboot'])
+    ), daemon=True).start()
+    return jsonify(ok=True)