import json

from django.http import HttpResponse, JsonResponse
from django.http.request import HttpRequest
from django.shortcuts import get_object_or_404, render
from django.utils import timezone
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_exempt
from django.views.generic import View

from webproj.thumbnailer.models import ErrorLog, Job, Log, PerformanceLog, ToJsonableMixin

# Create your views here.


@method_decorator(csrf_exempt, name='dispatch')
class JobsView(View):
    def get(self, request: HttpRequest):
        job: Job = Job.objects.filter(taken_at=None, result=None).first()
        if job is None:
            job = Job.objects.filter(result=None).order_by('taken_at').first()
        if job is None:
            return HttpResponse('done')
        job.taken_at = timezone.now()
        job.save()
        return HttpResponse(f'{job.pk}')


@method_decorator(csrf_exempt, name='dispatch')
class JobView(View):
    def get(self, request: HttpRequest, job_id: int):
        job = get_object_or_404(Job, id=job_id)
        job.taken_at = timezone.now()
        job.save()
        return JsonResponse(job.to_jsonable(), safe=False)

    def post(self, request, job_id):
        job = get_object_or_404(Job, id=job_id)
        job.result = json.dumps(json.loads(request.body))
        job.save()
        return HttpResponse('ok')


class LogView(View):
    model = Log

    def post(self, request: HttpRequest):
        Logging = type(self).model
        logging = Logging()
        logging.sender = json.dumps(json.loads(request.POST['sender']))
        logging.content = json.dumps(json.loads(request.POST['content']))
        logging.save()
        return JsonResponse(logging.to_jsonable(), safe=False)

    def get(self, request: HttpRequest):
        return JsonResponse(list(map(ToJsonableMixin.to_jsonable, type(self).model.objects.all())), safe=False)


@method_decorator(csrf_exempt, name='dispatch')
class LogErrorView(LogView):
    model = ErrorLog


@method_decorator(csrf_exempt, name='dispatch')
class LogPerformanceView(LogView):
    model = PerformanceLog