"""Constants for the ninlight integration. Deliberately free of Home Assistant imports."""

from __future__ import annotations

from datetime import timedelta
from typing import Final

DOMAIN: Final = "ninlight"

# Public default token of the ninlight firmware (CMakeLists.txt of the firmware repo).
DEFAULT_TOKEN: Final = "aabbccddeeff0011223344"

CONF_SCAN_INTERVAL: Final = "scan_interval"
CONF_LAMP_BASE_URL: Final = "lamp_base_url"

DEFAULT_SCAN_INTERVAL: Final = 30
MIN_SCAN_INTERVAL: Final = 10
MAX_SCAN_INTERVAL: Final = 300

MAX_TRANSITION_MS: Final = 60_000

FIRMWARE_DIR_NAME: Final = "ninlight_firmware"
CATALOG_SCAN_INTERVAL: Final = timedelta(minutes=5)
SIGNAL_CATALOG_UPDATED: Final = f"{DOMAIN}_catalog_updated"

FIRMWARE_URL_PREFIX: Final = "/api/ninlight/firmware/"
# len(secrets.token_urlsafe(32))
FIRMWARE_KEY_LENGTH: Final = 43
# The lamp rejects fw_update URLs longer than this (nl_api.c: get_string(cmd, "url", 8, 255)).
MAX_LAMP_URL_LENGTH: Final = 255

OTA_POLL_INTERVAL_S: Final = 5.0
# The firmware aborts a stalled download after 10 min; a dead peer can hang ~7 min in TCP.
OTA_TIMEOUT_S: Final = 12 * 60.0