"""
Redis constants.
"""


# Maximum number of items on track comparison page
from apollo_utils.core.utils.ext_enum import ExtEnum


COMPARED_TRACKS_LIMIT = 5


class CacheMode(ExtEnum):
    """Supported cache modes.
    REGULAR - regular usage: firstly try to find data in cache, if nothing was found, load new data and store it in
    cache.
    UPDATE - do not check cache, load new data and store it in cache.
    IGNORE - load new data and return it without saving to cache.
    """

    REGULAR = "regular"
    UPDATE = "update"
    IGNORE = "ignore"

    @classmethod
    def has(cls, value):
        return value in cls._value2member_map_


DEFAULT_CACHE_MODE = CacheMode.REGULAR