# Copyright 2017 ZTE Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging

from drf_yasg import openapi
from drf_yasg.utils import swagger_auto_schema
from rest_framework import status
from rest_framework.response import Response
from rest_framework.views import APIView

from catalog.jobs.job_get import GetJobInfoService
from catalog.packages.serializers.catalog_serializers import GetJobResponseSerializer
from catalog.packages.serializers.catalog_serializers import PostJobRequestSerializer
from catalog.packages.serializers.catalog_serializers import PostJobResponseResultSerializer
from catalog.pub.utils.jobutil import JobUtil
from catalog.pub.utils.values import ignore_case_get

logger = logging.getLogger(__name__)
CATALOG_API = "Catalog interface"


class JobView(APIView):
    input_job_id = openapi.Parameter(
        'job_id',
        openapi.IN_QUERY,
        description="job id",
        type=openapi.TYPE_STRING)
    input_response_id = openapi.Parameter(
        'responseId',
        openapi.IN_QUERY,
        description="response id",
        type=openapi.TYPE_STRING)

    @swagger_auto_schema(
        operation_description="Get job status",
        tags=[CATALOG_API],
        manual_parameters=[input_job_id, input_response_id],
        responses={
            status.HTTP_200_OK: GetJobResponseSerializer(),
            status.HTTP_500_INTERNAL_SERVER_ERROR: PostJobResponseResultSerializer()
        })
    def get(self, request, job_id):
        response_id = ignore_case_get(request.META, 'responseId')
        ret = GetJobInfoService(job_id, response_id).do_biz()
        response_serializer = GetJobResponseSerializer(data=ret)
        validataion_error = self.handleValidatonError(response_serializer, False)
        if validataion_error:
            return validataion_error

        return Response(
            data=response_serializer.data,
            status=status.HTTP_200_OK)

    @swagger_auto_schema(
        request_body=PostJobRequestSerializer(),
        operation_description="Update job status",
        tags=[CATALOG_API],
        manual_parameters=[input_job_id],
        responses={
            status.HTTP_202_ACCEPTED: PostJobResponseResultSerializer(),
            status.HTTP_500_INTERNAL_SERVER_ERROR: PostJobResponseResultSerializer()
        }
    )
    def post(self, request, job_id):
        job_result_ok = {'result': 'ok'}

        logger.debug("Enter JobView:post, %s, %s ", job_id, request.data)
        jobs = JobUtil.query_job_status(job_id)
        if len(jobs) > 0 and jobs[-1].errcode == '255':
            return Response(data=job_result_ok)

        request_serializer = PostJobRequestSerializer(data=request.data)
        validataion_error = self.handleValidatonError(request_serializer, True)
        if validataion_error:
            return validataion_error

        requestData = request_serializer.data
        progress = ignore_case_get(requestData, "progress")
        desc = ignore_case_get(requestData, "desc", '%s' % progress)
        errcode = '0' if ignore_case_get(requestData, 'errcode') in ('true', 'active') else '255'
        logger.debug("errcode=%s", errcode)
        JobUtil.add_job_status(job_id, progress, desc, error_code=errcode)

        response_serializer = PostJobResponseResultSerializer(data=job_result_ok)
        validataion_error = self.handleValidatonError(response_serializer, False)
        if validataion_error:
            return validataion_error

        return Response(
            data=response_serializer.data,
            status=status.HTTP_202_ACCEPTED)

    def handleValidatonError(self, base_serializer, is_request):
        response = None

        if not base_serializer.is_valid():
            errormessage = base_serializer.errors
            logger.error(errormessage)

            if is_request:
                message = 'Invalid request'
            else:
                message = 'Invalid response'
            logger.error(message)

            Response(
                data={'result': message, 'msg': errormessage},
                status=status.HTTP_500_INTERNAL_SERVER_ERROR)
        return response