from __future__ import annotations

import json
import os
import time
from pathlib import Path


ROOT = Path(__file__).resolve().parents[1]
UNLOCK_JSON = ROOT / "data" / "session_unlocked.json"


def _boot_id() -> int:
    try:
        import psutil  # type: ignore

        return int(psutil.boot_time())
    except Exception:
        return int(time.time() // 3600)


def is_activated_for_this_boot() -> bool:
    """
    True only if the session unlock marker matches this boot.
    Used to hard-block voice output before activation.
    """
    try:
        if not UNLOCK_JSON.exists():
            return False
        data = json.loads(UNLOCK_JSON.read_text(encoding="utf-8"))
        if not isinstance(data, dict):
            return False
        return int(data.get("boot_id", 0) or 0) == _boot_id()
    except Exception:
        return False