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#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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from __future__ import annotations

from dataclasses import dataclass, field
from typing import Optional

from dataclasses_json import config, dataclass_json

from gravitino.dto.authorization.group_dto import GroupDTO
from gravitino.dto.responses.base_response import BaseResponse
from gravitino.utils.precondition import Precondition


@dataclass_json
@dataclass
class GroupResponse(BaseResponse):
    """Represents a response for a group."""

    _group: Optional[GroupDTO] = field(
        default=None, metadata=config(field_name="group")
    )

    def group(self) -> Optional[GroupDTO]:
        return self._group

    def validate(self) -> None:
        Precondition.check_argument(
            self._group is not None, "Group response should have a group"
        )


@dataclass_json
@dataclass
class GroupListResponse(BaseResponse):
    """Represents a response for a list of groups with details."""

    _groups: list[GroupDTO] = field(
        default_factory=list, metadata=config(field_name="groups")
    )

    def groups(self) -> list[GroupDTO]:
        return self._groups

    def validate(self) -> None:
        Precondition.check_argument(
            self._groups is not None, "Group list response should have groups"
        )


@dataclass_json
@dataclass
class GroupNamesListResponse(BaseResponse):
    """Represents a response for a list of group names."""

    _names: list[str] = field(default_factory=list, metadata=config(field_name="names"))

    def names(self) -> list[str]:
        return self._names

    def validate(self) -> None:
        Precondition.check_argument(
            self._names is not None, "Group names list response should have names"
        )
