# This file is part of dnmgmt, a number resource management system
# Licensed under GNU General Public License v3 or later
# Written by Sebastian Lohff (seba@someserver.de)

from django.shortcuts import render
from django.contrib.auth.decorators import login_required
from django.contrib.auth.forms import PasswordChangeForm
from django.contrib.auth import login as auth_login
from django.db.models import Q
from django.views.generic import CreateView
from django.urls import reverse_lazy, reverse
from django.contrib import messages
from django.http import HttpResponseRedirect


from whoisdb.models import ASNumber, InetNum
from domains.models import Domain
from rrequests.models import Request

from .forms import CustomUserCreationForm


@login_required
def profile(request):
	pwForm = None

	if request.method == "POST":
		if request.POST.get("submit", None) == "pwchange":
			pwForm = PasswordChangeForm(user=request.user, data=request.POST)
			if pwForm.is_valid():
				pwForm.save()
				auth_login(request, pwForm.user)
				messages.success(request, "Password changed")

				return HttpResponseRedirect(reverse("user:profile"))

	if not pwForm:
		pwForm = PasswordChangeForm(user=request.user)

	return render(request, "registration/profile.html", {'pwForm': pwForm})


@login_required
def dashboard(request):
	mnts = request.user.maintainer_set.all()
	ownMnts = request.user.maintainer_set.filter(rir=False, lir=False).all().distinct()
	# if account only has rir/lir objects, show them
	if ownMnts.count() == 0:
		ownMnts = mnts

	asns = ASNumber.objects.filter(Q(mnt_by__in=ownMnts) | Q(mnt_lower__in=ownMnts)).distinct()
	inetnums = InetNum.objects.filter(Q(mnt_by__in=ownMnts) | Q(mnt_lower__in=ownMnts)).distinct()
	domains = Domain.objects.filter(mnt_by__in=mnts).distinct()
	rrequests = Request.objects.filter((Q(provider__in=mnts) | Q(applicant__in=mnts)) & Q(status=Request.STATE_OPEN)).distinct()

	return render(request, "dncore/dashboard.html", {"asns": asns, "inetnums": inetnums, "domains": domains, 'rrequests': rrequests})


def index(request):
	if request.user.is_authenticated():
		return HttpResponseRedirect(reverse("dashboard"))

	return render(request, "index.html", {})


class RegisterUser(CreateView):
	template_name = "dncore/registration.html"
	form_class = CustomUserCreationForm
	success_url = reverse_lazy("user:login")

	def form_valid(self, form):
		ret = super(RegisterUser, self).form_valid(form)
		messages.success(self.request, "You successfully registered as user %s and can now log in!" % form.instance.username)

		return ret