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 RESTManager, RESTObject
from gitlab.mixins import (
    CreateMixin,
    CRUDMixin,
    DeleteMixin,
    ListMixin,
    ObjectDeleteMixin,
    SaveMixin,
)
from gitlab.types import RequiredOptional

__all__ = [
    "RunnerJob",
    "RunnerJobManager",
    "Runner",
    "RunnerManager",
    "RunnerAll",
    "RunnerAllManager",
    "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
    _repr_attr = "description"


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", "type", "status", "paused", "tag_list")
    _types = {"tag_list": types.CommaSeparatedListAttribute}

    @cli.register_custom_action("RunnerManager", (), ("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)
            iterator: If set to True 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 RunnerAll(RESTObject):
    _repr_attr = "description"


class RunnerAllManager(ListMixin, RESTManager):
    _path = "/runners/all"
    _obj_cls = RunnerAll
    _list_filters = ("scope", "type", "status", "paused", "tag_list")
    _types = {"tag_list": types.CommaSeparatedListAttribute}


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.CommaSeparatedListAttribute}


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.CommaSeparatedListAttribute}