# SPDX-License-Identifier: GPL-3.0-or-later

# Various policies for altering HTTP requests.
#
# This file is part of Hydrilla&Haketilo.
#
# Copyright (C) 2022 Wojtek Kosior
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
#
#
# I, Wojtek Kosior, thereby promise not to sue for violation of this
# file's license. Although I request that you do not make use this code
# in a proprietary program, I am not going to enforce this in court.

import dataclasses as dc
import typing as t

from abc import ABC

class Policy(ABC):
    pass

class PayloadPolicy(Policy):
    """...."""
    def assets_base_url(self) -> str:
        """...."""
        return 'https://example.com/static/'

    def script_urls(self) -> t.Sequence[str]:
        """...."""
        # TODO: implement
        return ('https://example.com/static/somescript.js',)

    def is_eval_allowed(self) -> bool:
        """...."""
        # TODO: implement
        return True

class MetaResourcePolicy(Policy):
    pass

class AllowPolicy(Policy):
    pass

@dc.dataclass
class RuleAllowPolicy(AllowPolicy):
    pattern: str

class FallbackAllowPolicy(AllowPolicy):
    pass

class BlockPolicy(Policy):
    pass

@dc.dataclass
class RuleBlockPolicy(BlockPolicy):
    pattern: str

class FallbackBlockPolicy(BlockPolicy):
    pass

@dc.dataclass
class ErrorBlockPolicy(BlockPolicy):
    error: Exception