# Copyright DB InfraGO AG and contributors
# SPDX-License-Identifier: Apache-2.0
"""Contains some shared types for properties."""

from http import HTTPStatus
from typing import (
    BinaryIO,
    Generic,
    Literal,
    MutableMapping,
    Optional,
    Tuple,
    TypeVar,
)

from attrs import define


class Unset:
    def __bool__(self) -> Literal[False]:
        return False


UNSET: Unset = Unset()

FileJsonType = Tuple[Optional[str], BinaryIO, Optional[str]]


@define
class File:
    """Contains information for file uploads."""

    payload: BinaryIO
    file_name: Optional[str] = None
    mime_type: Optional[str] = None

    def to_tuple(self) -> FileJsonType:
        """Return a tuple representation that httpx will accept for
        multipart/form-data."""
        return self.file_name, self.payload, self.mime_type


T = TypeVar("T")


@define
class Response(Generic[T]):
    """A response from an endpoint."""

    status_code: HTTPStatus
    content: bytes
    headers: MutableMapping[str, str]
    parsed: Optional[T]


__all__ = ["File", "Response", "FileJsonType", "Unset", "UNSET"]
