"""Датаклассы строк БД и статусов рекордера."""
from __future__ import annotations

from dataclasses import asdict, dataclass
from enum import Enum


class CameraState(str, Enum):
    ONLINE = "online"       # ffmpeg пишет
    RETRYING = "retrying"   # упал, ждём перезапуск (backoff)
    OFFLINE = "offline"     # выключена/остановлена
    STARTING = "starting"


@dataclass
class Recording:
    id: int
    camera_id: str
    path: str
    started_at: int
    ended_at: int | None
    duration_s: float | None
    size_bytes: int | None
    created_at: int

    def to_dict(self) -> dict:
        return asdict(self)


@dataclass
class CameraStatus:
    camera_id: str
    name: str
    enabled: bool
    state: CameraState
    last_error: str | None = None
    restarts: int = 0
    pid: int | None = None
    since: int | None = None       # unix-время входа в текущее состояние

    def to_dict(self) -> dict:
        d = asdict(self)
        d["state"] = self.state.value
        return d