"""Webapp views."""

import jwt
# import logging
# import requests
from dealer.git import git
from django.conf import settings
from django.contrib.auth import authenticate, login, logout
from django.http import HttpResponse
# from django.db.models import Count
from django.shortcuts import redirect, render
from django.views.decorators.http import require_http_methods
from django_filters import rest_framework as filters
# from django.views.decorators.csrf import ensure_csrf_cookie
# from django.http import HttpResponse, HttpResponseRedirect
# from django.contrib.auth.decorators import permission_required, login_required
# from django.conf import settings
# from django.utils import timezone
from rest_framework import permissions, routers, viewsets
from rest_framework.filters import OrderingFilter, SearchFilter
from rest_framework.permissions import IsAuthenticatedOrReadOnly
from rest_framework.response import Response
from rest_framework.reverse import reverse

from members.views.utils import *
from webapp.models import (Committee, Event, Feed, Official, Signup,
                           SignupForm, Tag, TemplateQuestion)
from webapp.serializers import *


class IsPostOrIsAuthenticated(permissions.BasePermission):

    def has_permission(self, request, view):
        if request.method == 'POST':
            return True
        return request.user and request.user.is_authenticated


# -- REST API -- #
class RootView(routers.APIRootView):
    permission_classes = [IsAuthenticatedOrReadOnly]


class EventViewSet(viewsets.ModelViewSet):
    queryset = Event.objects.all()
    serializer_class = EventSerializer
    permission_classes = [IsAuthenticatedOrReadOnly]
    filter_backends = (filters.DjangoFilterBackend, SearchFilter, OrderingFilter)
    filter_fields = '__all__'
    search_fields = '__all__'

    def get_queryset(self):
        since = self.request.query_params.get('since', None)
        if since:
            return Event.objects.filter(visible=True, end_time__gt=since).order_by('start_time')

        return Event.objects.filter(visible=True).order_by('start_time')


class SignupFormViewSet(viewsets.ModelViewSet):
    queryset = SignupForm.objects.all()
    serializer_class = SignupFormSerializer
    permission_classes = [IsAuthenticatedOrReadOnly]
    filter_backends = (filters.DjangoFilterBackend, SearchFilter, OrderingFilter)
    filter_fields = '__all__'
    search_fields = '__all__'

    def get_queryset(self):
        return SignupForm.objects.filter(visible=True, end_time__gt=timezone.now()).order_by('start_time')


class SignupViewSet(viewsets.ModelViewSet):
    queryset = Signup.objects.all()
    serializer_class = SignupSerializer
    permission_classes = [IsPostOrIsAuthenticated]
    # filter_backends = (filters.DjangoFilterBackend, SearchFilter, OrderingFilter)
    # filter_fields = '__all__'
    # search_fields = '__all__'

    # def get_queryset(self):
    #     return Signup.objects.filter(visible=True, end_time__gt=timezone.now()).order_by('start_time')


class SavedQuestionsViewSet(viewsets.ModelViewSet):
    queryset = TemplateQuestion.objects.all()
    serializer_class = SavedQuestionsSerializer
    permission_classes = [IsAuthenticatedOrReadOnly]


class FeedViewSet(viewsets.ModelViewSet):
    queryset = Feed.objects.all()
    serializer_class = FeedSerializer
    permission_classes = [IsAuthenticatedOrReadOnly]
    filter_backends = (filters.DjangoFilterBackend, SearchFilter, OrderingFilter)
    filter_fields = '__all__'
    search_fields = '__all__'

    def get_queryset(self):
        objs = Feed.objects.filter(visible=True).order_by('publish_time')

        result_ids = []
        for obj in objs:
            if obj.autohide_enabled:
                if obj.autohide > timezone.now():
                    result_ids.append(obj.id)
            else:
                result_ids.append(obj.id)

        return Feed.objects.filter(id__in=result_ids)


class ContactsViewSet(viewsets.ReadOnlyModelViewSet):
    queryset = Occupation.objects.all()
    serializer_class = OccupationSerializer
    permission_classes = [IsAuthenticatedOrReadOnly]

    def get_queryset(self):
        year = self.request.query_params.get('year')
        if not year:
            return Occupation.by_year(timezone.now().year)
        return Occupation.by_year(int(year))


class CommitteeViewSet(viewsets.ReadOnlyModelViewSet):
    queryset = Committee.objects.all()
    serializer_class = CommitteeSerializer
    permission_classes = [IsAuthenticatedOrReadOnly]


class TagsViewSet(viewsets.ReadOnlyModelViewSet):
    queryset = Tag.objects.all()
    serializer_class = TagSerializer
    permission_classes = [IsAuthenticatedOrReadOnly]


# -- OLD CODEBASE -- #

@require_http_methods(["GET"])
def main_index(request, *args, **kwargs):
    """Render main page."""
    return render(request, "index.html", {})


@require_http_methods(["GET"])
def about_view(request, *args, **kwargs):
    """Render about page."""
    latest_commit = "Not found"
    latest_date = "Not found"
    latest_tag = "Not found"
    try:
        repo = git.init_repo()
        latest_commit = repo.git("rev-parse HEAD").decode('utf-8')
        latest_date = repo.git("show -s --format=%ci " + latest_commit).decode('utf-8')
        latest_tag = repo.git("describe --tags " + repo.git("rev-list --tags --max-count=1").decode('utf-8')).decode('utf-8')
    except Exception:
        pass

    context = {
        'commit': latest_commit,
        'date': latest_date,
        'tag': latest_tag
    }
    return render(request, "about.html", context)


@require_http_methods(["GET"])
def guild_view(request, *args, **kwargs):
    """Render "Guild" page."""
    return render(request, "guild.html", {})


@require_http_methods(["GET"])
def freshmen_view(request, *args, **kwargs):
    """Render "Freshmen" page."""
    return render(request, "freshmen.html", {})


@require_http_methods(["GET"])
def jobs_view(request, *args, **kwargs):
    """Render "Jobs" page."""
    return render(request, "jobs.html", {})


@require_http_methods(["GET"])
def event_calendar_view(request, *args, **kwargs):
    """Render "Event calendar" page."""
    return render(request, "event_calendar.html", {})


@require_http_methods(["GET"])
def international_view(request, *args, **kwargs):
    """Render "International" page."""
    return render(request, "international.html", {})


@require_http_methods(["GET"])
def sosso_view(request, *args, **kwargs):
    """Render "Sössö" page."""
    return render(request, "sosso.html", {})


@require_http_methods(["GET"])
def contact_view(request, *args, **kwargs):
    """Render "Contact" page."""
    committees = Committee.objects.order_by('name')

    context = {
        "committees": committees
    }

    return render(request, "contact.html", context)


@require_http_methods(["GET"])
def nginx_jwt_resp(request, *args, **kwargs):
    cookie = request.COOKIES.get("jwt", None)
    if not cookie:
        return HttpResponse("", status=401)
    try:
        token = jwt.decode(cookie, settings.SECRET_KEY)
    except jwt.exceptions.InvalidSignatureError:
        return HttpResponse("", status=403)
    user = 'admin' if token.get('username', '') == 'admin' else 'moderator'
    resp = HttpResponse("", status=200)
    resp['X-FBrowser-User'] = user
    return resp