#  MIT License
#
#  Copyright (c) 2019 Simon Kerr
#
#  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
#  documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
#  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
#  and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
#
#  The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
#  Software.
#
#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
#  NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
#  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
#  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
from dataclasses import dataclass
from typing import Union


@dataclass(frozen=True, eq=True)
class PageLoadingStrategy:
    pass


@dataclass(frozen=True, eq=True)
class SlowLoadingPageStrategy(PageLoadingStrategy):
    name: str = "slow"

    def __str__(self):
        return "strategy: slow"


@dataclass(frozen=True, eq=True)
class NormalLoadingPageStrategy(PageLoadingStrategy):
    name: str = "normal"

    def __str__(self):
        return "strategy: normal"


@dataclass(frozen=True, eq=True)
class FastLoadingPageStrategy(PageLoadingStrategy):
    name: str = "fast"

    def __str__(self):
        return "strategy: fast"


strategy_union = Union[
    SlowLoadingPageStrategy, NormalLoadingPageStrategy, FastLoadingPageStrategy
]
