from collections.abc import Mapping
from typing import Any, TypeVar, Union

from attrs import define as _attrs_define
from attrs import field as _attrs_field

from ..types import UNSET, Unset

T = TypeVar("T", bound="PagingModel")


@_attrs_define
class PagingModel:
    """The Paging holds information about the limit and making requests to the next page.

    Attributes:
        limit (int): The limit of the messages for the current request. Example: 123.
        since (int): The ID of the last message returned in the current request. Use this as alternative to the next
            link. Example: 5.
        size (int): The amount of messages that got returned in the current request. Example: 5.
        next_ (Union[Unset, str]): The request url for the next page. Empty/Null when no next page is available.
            Example: http://example.com/message?limit=50&since=123456.
    """

    limit: int
    since: int
    size: int
    next_: Union[Unset, str] = UNSET
    additional_properties: dict[str, Any] = _attrs_field(init=False, factory=dict)

    def to_dict(self) -> dict[str, Any]:
        limit = self.limit

        since = self.since

        size = self.size

        next_ = self.next_

        field_dict: dict[str, Any] = {}
        field_dict.update(self.additional_properties)
        field_dict.update(
            {
                "limit": limit,
                "since": since,
                "size": size,
            }
        )
        if next_ is not UNSET:
            field_dict["next"] = next_

        return field_dict

    @classmethod
    def from_dict(cls: type[T], src_dict: Mapping[str, Any]) -> T:
        d = dict(src_dict)
        limit = d.pop("limit")

        since = d.pop("since")

        size = d.pop("size")

        next_ = d.pop("next", UNSET)

        paging_model = cls(
            limit=limit,
            since=since,
            size=size,
            next_=next_,
        )

        paging_model.additional_properties = d
        return paging_model

    @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