from typing import Any, Dict, List, Type, TypeVar, Union

import attr

from ..models.coupon import Coupon
from ..types import UNSET, Unset

GL = TypeVar("GL", bound="Discount")


@attr.s(auto_attribs=True)
class Discount:
    """The resource representing a Discount."""  # noqa: E501

    coupon: Union[Unset, Coupon] = UNSET

    additional_properties: Dict[str, Any] = attr.ib(init=False, factory=dict)

    def to_dict(self) -> Dict[str, Any]:
        if not isinstance(self.coupon, Unset):
            coupon = self.coupon

        field_dict: Dict[str, Any] = {}
        field_dict.update(self.additional_properties)
        field_dict.update({})
        if coupon is not UNSET:
            field_dict["coupon"] = coupon.to_dict()

        return field_dict

    @classmethod
    def from_dict(cls: Type[GL], src_dict: Dict[str, Any]) -> GL:
        d = src_dict.copy()
        _coupon = d.pop("coupon", UNSET)
        coupon: Union[Unset, Coupon]
        if isinstance(_coupon, Unset):
            coupon = UNSET
        else:
            coupon = _coupon  # type: ignore[arg-type]

        discount = cls(
            coupon=coupon,
        )

        discount.additional_properties = d
        return discount

    @property
    def additional_keys(self) -> List[str]:
        return list(self.additional_properties.keys())

    def __getitem__(self, key: str) -> Any:
        return self.additional_properties[key]

    def __setitem__(self, key: str, value: Any) -> None:
        self.additional_properties[key] = value

    def __delitem__(self, key: str) -> None:
        del self.additional_properties[key]

    def __contains__(self, key: str) -> bool:
        return key in self.additional_properties