#
# Copyright (c) 2021-2023 ahriman team.
#
# This file is part of ahriman
# (see https://github.com/arcan1s/ahriman).
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import aiohttp_apispec  # type: ignore[import]

from aiohttp.web import HTTPBadRequest, HTTPNotFound, Response, json_response

from ahriman.models.user_access import UserAccess
from ahriman.web.schemas import AuthSchema, ErrorSchema, PGPKeyIdSchema, PGPKeySchema, ProcessIdSchema
from ahriman.web.views.base import BaseView


class PGPView(BaseView):
    """
    pgp key management web view

    Attributes:
        GET_PERMISSION(UserAccess): (class attribute) get permissions of self
        POST_PERMISSION(UserAccess): (class attribute) post permissions of self
    """

    POST_PERMISSION = UserAccess.Full
    GET_PERMISSION = UserAccess.Reporter

    @aiohttp_apispec.docs(
        tags=["Actions"],
        summary="Search for PGP key",
        description="Search for PGP key and retrieve its body",
        responses={
            200: {"description": "Success response", "schema": PGPKeySchema},
            400: {"description": "Bad data is supplied", "schema": ErrorSchema},
            401: {"description": "Authorization required", "schema": ErrorSchema},
            403: {"description": "Access is forbidden", "schema": ErrorSchema},
            404: {"description": "Package base is unknown", "schema": ErrorSchema},
            500: {"description": "Internal server error", "schema": ErrorSchema},
        },
        security=[{"token": [GET_PERMISSION]}],
    )
    @aiohttp_apispec.cookies_schema(AuthSchema)
    @aiohttp_apispec.querystring_schema(PGPKeyIdSchema)
    async def get(self) -> Response:
        """
        retrieve key from the key server

        Returns:
            Response: 200 with key body on success

        Raises:
            HTTPBadRequest: if bad data is supplied
            HTTPNotFound: if key wasn't found or service was unable to fetch it
        """
        try:
            key = self.get_non_empty(self.request.query.getone, "key")
            server = self.get_non_empty(self.request.query.getone, "server")
        except Exception as ex:
            raise HTTPBadRequest(reason=str(ex))

        try:
            key = self.service.repository.sign.key_download(server, key)
        except Exception:
            raise HTTPNotFound

        return json_response({"key": key})

    @aiohttp_apispec.docs(
        tags=["Actions"],
        summary="Fetch PGP key",
        description="Fetch PGP key from the key server",
        responses={
            200: {"description": "Success response", "schema": ProcessIdSchema},
            400: {"description": "Bad data is supplied", "schema": ErrorSchema},
            401: {"description": "Authorization required", "schema": ErrorSchema},
            403: {"description": "Access is forbidden", "schema": ErrorSchema},
            500: {"description": "Internal server error", "schema": ErrorSchema},
        },
        security=[{"token": [POST_PERMISSION]}],
    )
    @aiohttp_apispec.cookies_schema(AuthSchema)
    @aiohttp_apispec.json_schema(PGPKeyIdSchema)
    async def post(self) -> Response:
        """
        store key to the local service environment

        Returns:
            Response: 200 with spawned process id

        Raises:
            HTTPBadRequest: if bad data is supplied
        """
        data = await self.extract_data()

        try:
            key = self.get_non_empty(data.get, "key")
        except Exception as ex:
            raise HTTPBadRequest(reason=str(ex))

        process_id = self.spawner.key_import(key, data.get("server"))

        return json_response({"process_id": process_id})
