import logging

from django.contrib.auth.views import LoginView as BaseLoginView
from django.shortcuts import get_object_or_404
from django.views.generic import TemplateView
from django.views.generic.list import ListView
from django.contrib.auth.mixins import LoginRequiredMixin

from .permissions import SuperUserMixin
from .models import Project
from app import settings

logger = logging.getLogger(__name__)


class IndexView(TemplateView):
    template_name = 'index.html'


class ProjectView(LoginRequiredMixin, TemplateView):

    def get_template_names(self):
        project = get_object_or_404(Project, pk=self.kwargs['project_id'])
        return [project.get_template_name()]


class ProjectsView(LoginRequiredMixin, TemplateView):
    template_name = 'projects.html'


class DatasetView(SuperUserMixin, LoginRequiredMixin, ListView):
    template_name = 'admin/dataset.html'
    paginate_by = 5

    def get_queryset(self):
        project = get_object_or_404(Project, pk=self.kwargs['project_id'])
        return project.documents.all()


class LabelView(SuperUserMixin, LoginRequiredMixin, TemplateView):
    template_name = 'admin/label.html'


class StatsView(SuperUserMixin, LoginRequiredMixin, TemplateView):
    template_name = 'admin/stats.html'


class GuidelineView(SuperUserMixin, LoginRequiredMixin, TemplateView):
    template_name = 'admin/guideline.html'


class DataUpload(SuperUserMixin, LoginRequiredMixin, TemplateView):

    def get_template_names(self):
        project = get_object_or_404(Project, pk=self.kwargs['project_id'])
        return [project.get_upload_template()]


class DataDownload(SuperUserMixin, LoginRequiredMixin, TemplateView):

    def get_template_names(self):
        project = get_object_or_404(Project, pk=self.kwargs['project_id'])
        return [project.get_download_template()]


class LoginView(BaseLoginView):
    template_name = 'login.html'
    redirect_authenticated_user = True
    extra_context = {
        'github_login': bool(settings.SOCIAL_AUTH_GITHUB_KEY),
        'aad_login': bool(settings.SOCIAL_AUTH_AZUREAD_TENANT_OAUTH2_TENANT_ID),
    }

    def get_context_data(self, **kwargs):
        context = super(LoginView, self).get_context_data(**kwargs)
        context['social_login_enabled'] = any(value for key, value in context.items()
                                              if key.endswith('_login'))
        return context


class DemoTextClassification(TemplateView):
    template_name = 'demo/demo_text_classification.html'


class DemoNamedEntityRecognition(TemplateView):
    template_name = 'demo/demo_named_entity.html'


class DemoTranslation(TemplateView):
    template_name = 'demo/demo_translation.html'