from typing import Any, cast, List, Optional, Union

from gitlab import cli
from gitlab import exceptions as exc
from gitlab import types
from gitlab.base import RequiredOptional, RESTManager, RESTObject
from gitlab.mixins import (
    CreateMixin,
    CRUDMixin,
    DeleteMixin,
    ListMixin,
    ObjectDeleteMixin,
    SaveMixin,
)

__all__ = [
    "RunnerJob",
    "RunnerJobManager",
    "Runner",
    "RunnerManager",
    "GroupRunner",
    "GroupRunnerManager",
    "ProjectRunner",
    "ProjectRunnerManager",
]


class RunnerJob(RESTObject):
    pass


class RunnerJobManager(ListMixin, RESTManager):
    _path = "/runners/{runner_id}/jobs"
    _obj_cls = RunnerJob
    _from_parent_attrs = {"runner_id": "id"}
    _list_filters = ("status",)


class Runner(SaveMixin, ObjectDeleteMixin, RESTObject):
    jobs: RunnerJobManager


class RunnerManager(CRUDMixin, RESTManager):
    _path = "/runners"
    _obj_cls = Runner
    _create_attrs = RequiredOptional(
        required=("token",),
        optional=(
            "description",
            "info",
            "active",
            "locked",
            "run_untagged",
            "tag_list",
            "access_level",
            "maximum_timeout",
        ),
    )
    _update_attrs = RequiredOptional(
        optional=(
            "description",
            "active",
            "tag_list",
            "run_untagged",
            "locked",
            "access_level",
            "maximum_timeout",
        ),
    )
    _list_filters = ("scope", "tag_list")
    _types = {"tag_list": types.ListAttribute}

    @cli.register_custom_action("RunnerManager", tuple(), ("scope",))
    @exc.on_http_error(exc.GitlabListError)
    def all(self, scope: Optional[str] = None, **kwargs: Any) -> List[Runner]:
        """List all the runners.

        Args:
            scope: The scope of runners to show, one of: specific,
                shared, active, paused, online
            all: If True, return all the items, without pagination
            per_page: Number of items to retrieve per request
            page: ID of the page to return (starts with page 1)
            as_list: If set to False and no pagination option is
                defined, return a generator instead of a list
            **kwargs: Extra options to send to the server (e.g. sudo)

        Raises:
            GitlabAuthenticationError: If authentication is not correct
            GitlabListError: If the server failed to perform the request

        Returns:
            A list of runners matching the scope.
        """
        path = "/runners/all"
        query_data = {}
        if scope is not None:
            query_data["scope"] = scope
        obj = self.gitlab.http_list(path, query_data, **kwargs)
        return [self._obj_cls(self, item) for item in obj]

    @cli.register_custom_action("RunnerManager", ("token",))
    @exc.on_http_error(exc.GitlabVerifyError)
    def verify(self, token: str, **kwargs: Any) -> None:
        """Validates authentication credentials for a registered Runner.

        Args:
            token: The runner's authentication token
            **kwargs: Extra options to send to the server (e.g. sudo)

        Raises:
            GitlabAuthenticationError: If authentication is not correct
            GitlabVerifyError: If the server failed to verify the token
        """
        path = "/runners/verify"
        post_data = {"token": token}
        self.gitlab.http_post(path, post_data=post_data, **kwargs)

    def get(self, id: Union[str, int], lazy: bool = False, **kwargs: Any) -> Runner:
        return cast(Runner, super().get(id=id, lazy=lazy, **kwargs))


class GroupRunner(RESTObject):
    pass


class GroupRunnerManager(ListMixin, RESTManager):
    _path = "/groups/{group_id}/runners"
    _obj_cls = GroupRunner
    _from_parent_attrs = {"group_id": "id"}
    _create_attrs = RequiredOptional(required=("runner_id",))
    _list_filters = ("scope", "tag_list")
    _types = {"tag_list": types.ListAttribute}


class ProjectRunner(ObjectDeleteMixin, RESTObject):
    pass


class ProjectRunnerManager(CreateMixin, DeleteMixin, ListMixin, RESTManager):
    _path = "/projects/{project_id}/runners"
    _obj_cls = ProjectRunner
    _from_parent_attrs = {"project_id": "id"}
    _create_attrs = RequiredOptional(required=("runner_id",))
    _list_filters = ("scope", "tag_list")
    _types = {"tag_list": types.ListAttribute}