device_config.py

import json
from typing import List, Dict, Optional

class DeviceConfig:
    def __init__(self, config_path: str = "devices.json"):
        self.config_path = config_path
        self.devices = self._load_devices()

    def _load_devices(self) -> List[Dict]:
        with open(self.config_path, "r") as f:
            return json.load(f)

    def reload(self) -> List[Dict]:
        self.devices = self._load_devices()
        return self.devices

    def _save_devices(self) -> None:
        with open(self.config_path, "w") as f:
            json.dump(self.devices, f, indent=2)

    def get_device_by_mac(self, mac: str) -> Optional[Dict]:
        for device in self.devices:
            if device["mac"].lower() == mac.lower():
                return device
        return None

    def get_device_by_name(self, name: str) -> Optional[Dict]:
        for device in self.devices:
            if device["name"].lower() == name.lower():
                return device
        return None

    def list_devices(self) -> List[Dict]:
        return self.devices

    def update_position(self, mac: str, position: int) -> bool:
        for device in self.devices:
            if device["mac"].lower() == mac.lower():
                device["position"] = position
                self._save_devices()
                return True
        return False