#-----------------------------------------------------------------------------
# Copyright (c) 2012 - 2021, Anaconda, Inc., and Bokeh Contributors.
# All rights reserved.
#
# The full license is in the file LICENSE.txt, distributed with this software.
#-----------------------------------------------------------------------------
""" Provide ``Factor`` and ``FactorSeq`` properties. """

#-----------------------------------------------------------------------------
# Boilerplate
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from __future__ import annotations

import logging # isort:skip
log = logging.getLogger(__name__)

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# Imports
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# Bokeh imports
from .container import Seq, Tuple
from .either import Either
from .nullable import NonNullable
from .primitive import String
from .singletons import Intrinsic

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# Globals and constants
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__all__ = (
    "Factor",
    "FactorSeq",
)

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# General API
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L1Factor = String
L2Factor = Tuple(String, String)
L3Factor = Tuple(String, String, String)

class Factor(NonNullable):
    """ Represents a single categorical factor. """

    def __init__(self, default=Intrinsic, *, help=None, serialized=None, readonly=False) -> None:
        type_param = Either(L1Factor, L2Factor, L3Factor)
        super().__init__(type_param, default=default, help=help, serialized=serialized, readonly=readonly)

class FactorSeq(NonNullable):
    """ Represents a collection of categorical factors. """

    def __init__(self, default=Intrinsic, *, help=None, serialized=None, readonly=False) -> None:
        type_param = Either(Seq(L1Factor), Seq(L2Factor), Seq(L3Factor))
        super().__init__(type_param, default=default, help=help, serialized=serialized, readonly=readonly)

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# Dev API
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# Private API
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#-----------------------------------------------------------------------------
# Code
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