"""
MIT License

Copyright (c) 2020 Gabriel Huber

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 typing import Dict, Optional, Tuple

from a2s.a2s_async import request_async
from a2s.a2s_sync import request_sync
from a2s.byteio import ByteReader
from a2s.defaults import DEFAULT_ENCODING, DEFAULT_TIMEOUT

A2S_RULES_RESPONSE = 0x45


def rules(address: Tuple[str, int], timeout: float = DEFAULT_TIMEOUT, encoding: str = DEFAULT_ENCODING) -> Dict[str, str]:
    return request_sync(address, timeout, encoding, RulesProtocol)


async def arules(
    address: Tuple[str, int], timeout: float = DEFAULT_TIMEOUT, encoding: str = DEFAULT_ENCODING
) -> Dict[str, str]:
    return await request_async(address, timeout, encoding, RulesProtocol)


class RulesProtocol:
    @staticmethod
    def validate_response_type(response_type: int) -> bool:
        return response_type == A2S_RULES_RESPONSE

    @staticmethod
    def serialize_request(challenge: int) -> bytes:
        return b"\x56" + challenge.to_bytes(4, "little")

    @staticmethod
    def deserialize_response(reader: ByteReader, response_type: int, ping: Optional[float]) -> Dict[str, str]:
        rule_count = reader.read_int16()
        # Have to use tuples to preserve evaluation order
        resp = dict((reader.read_cstring(), reader.read_cstring()) for _ in range(rule_count))
        return resp