from __future__ import annotations

import secrets
from pathlib import Path


class DeviceStore:
    def __init__(self) -> None:
        self.path = Path.home() / "AppData" / "Roaming" / "SyncTV" / "device.id"

    def get_or_create(self) -> str:
        if self.path.exists():
            current = self.path.read_text(encoding="utf-8").strip()
            if current:
                return current
        self.path.parent.mkdir(parents=True, exist_ok=True)
        device_id = "dev_" + secrets.token_hex(12)
        self.path.write_text(device_id, encoding="utf-8")
        return device_id