"""
Copyright © IQ.Lvbs, apart of Project Teal Lvbs, All Rights Reserved, licensed under https://konn3kt.com/tos

Engagement tiers for the speed-assist feature. A tier is persisted as an integer
under the "IQSpeedAssistMode" param; the ordinal IS the stored value and must remain
stable (0..3), ordered by how much the tier is allowed to intervene.
"""
from enum import IntEnum

STORE_KEY = "IQSpeedAssistMode"

# none -> just display the limit -> highlight overspeed -> move the set speed
SpeedAssistTier = IntEnum("SpeedAssistTier", "DISABLED ADVISORY ALERTING ACTUATING", start=0)

DEFAULT_TIER = SpeedAssistTier.ADVISORY


def actuates_speed(tier) -> bool:
  """Only the top tier is permitted to drive the cruise set speed."""
  return int(tier) == SpeedAssistTier.ACTUATING