from django.shortcuts import render
from django.db.models import Q
from django.contrib.auth.decorators import login_required
from django.http import HttpResponseRedirect
from django.urls import reverse, reverse_lazy
from django.views.generic import DetailView, CreateView, UpdateView
from django.contrib.auth.mixins import LoginRequiredMixin

from .models import Maintainer, Contact, InetNum, ASBlock, ASNumber
from .forms import MntForm, MntInitialForm, ContactForm, ContactInitialForm, InetNumForm
from .generic import DeleteCheckView


@login_required
def dbDashboard(request):
	mnts = request.user.maintainer_set.all()
	contacts = Contact.objects.filter(mnt_by__in=mnts)
	netblocks = InetNum.objects.filter(Q(mnt_by__in=mnts) | Q(mnt_lower__in=mnts)).distinct()
	asblocks = ASBlock.objects.filter(Q(mnt_by__in=mnts) | Q(mnt_lower__in=mnts)).distinct()
	asnumbers = ASNumber.objects.filter(Q(mnt_by__in=mnts) | Q(mnt_lower__in=mnts)).distinct()
	mntForm = contactForm = None

	if mnts.count() == 0:
		mntForm = contactForm = None
		if request.method == "POST":
			mntForm = MntInitialForm(user=request.user, data=request.POST, prefix="mnt")
			contactForm = ContactInitialForm(user=request.user, person=True, data=request.POST, prefix="contact")
			if mntForm.is_valid() and contactForm.is_valid():
				mnt = mntForm.save(commit=False)
				mnt.handleAuto(request.user.username)
				mnt.save()

				contact = contactForm.save(commit=False)
				contact.handleAuto()
				contact.type = Contact.TYPE_PERSON
				contact.save()
				contact.mnt_by.add(mnt.id)
				contact.save()

				mnt.auth.add(request.user.id)
				mnt.admin_c.add(contact.id)
				mnt.save()

				return HttpResponseRedirect(reverse("whoisdb:dashboard"))
		else:
			mntForm = MntInitialForm(user=request.user, prefix="mnt", initial={'handle': 'AUTO', 'description': 'Primary maintainer of %s' % request.user.username})
			contactForm = ContactInitialForm(user=request.user, person=True, initial={'handle': 'AUTO', 'name': request.user.username.capitalize()}, prefix='contact')

	print(asnumbers, asblocks, netblocks, mnts)

	return render(request, "whoisdb/overview.html", {"mnts": mnts, "contacts": contacts, "mntForm": mntForm, "contactForm": contactForm, "netblocks": netblocks, "asblocks": asblocks, "asnumbers": asnumbers})


class MaintainerCreate(LoginRequiredMixin, CreateView):
	template_name = "whoisdb/obj_create.html"
	form_class = MntForm

	def get_form_kwargs(self, *args, **kwargs):
		kwargs = super(MaintainerCreate, self).get_form_kwargs(*args, **kwargs)
		kwargs["user"] = self.request.user
		kwargs["initial"] = {
			"handle": "AUTO",
		}

		return kwargs

	def form_valid(self, form):
		self.object = form.save(commit=False)
		self.object.handleAuto(self.request.user.username)
		self.object.save()
		self.object.auth.add(self.request.user)
		self.object.save()

		return super(MaintainerCreate, self).form_valid(form)


class MaintainerEdit(LoginRequiredMixin, UpdateView):
	template_name = "whoisdb/maintainer_edit.html"
	model = Maintainer
	form_class = MntForm
	slug_field = "handle"
	slug_url_kwarg = "handle"

	def get_form_kwargs(self, *args, **kwargs):
		kwargs = super(MaintainerEdit, self).get_form_kwargs(*args, **kwargs)
		kwargs["user"] = self.request.user
		return kwargs

	def get_queryset(self):
		return self.model.objects.filter(auth=self.request.user)


class MaintainerDelete(LoginRequiredMixin, DeleteCheckView):
	template_name = "whoisdb/obj_delete.html"
	model = Maintainer
	slug_field = "handle"
	slug_url_kwarg = "handle"
	success_url = reverse_lazy("whoisdb:dashboard")

	def get_queryset(self):
		return self.model.objects.filter(auth=self.request.user)


class MaintainerDetail(LoginRequiredMixin, DetailView):
	model = Maintainer
	slug_field = "handle"
	slug_url_kwarg = "handle"
	context_object_name = "mnt"


class ContactDetail(DetailView):
	model = Contact
	slug_field = "handle"
	slug_url_kwarg = "handle"
	context_object_name = "contact"


class ContactEdit(LoginRequiredMixin, UpdateView):
	template_name = "whoisdb/obj_edit.html"
	model = Contact
	form_class = ContactForm
	slug_field = "handle"
	slug_url_kwarg = "handle"

	def get_form_kwargs(self, *args, **kwargs):
		kwargs = super(ContactEdit, self).get_form_kwargs(*args, **kwargs)
		kwargs["user"] = self.request.user
		return kwargs

	def get_queryset(self):
		# FIXME: we need all maintainers to be available. autofill own maintainers
		return self.model.objects.filter(mnt_by__in=self.request.user.maintainer_set.all())


class ContactCreate(LoginRequiredMixin, CreateView):
	template_name = "whoisdb/obj_create.html"
	form_class = ContactForm

	def get_form_kwargs(self, *args, **kwargs):
		kwargs = super(ContactCreate, self).get_form_kwargs(*args, **kwargs)
		kwargs["user"] = self.request.user
		kwargs["initial"] = {
			"handle": "AUTO",
			"type": Contact.TYPE_PERSON
		}
		return kwargs


class ContactDelete(LoginRequiredMixin, DeleteCheckView):
	template_name = "whoisdb/obj_delete.html"
	model = Contact
	slug_field = "handle"
	slug_url_kwarg = "handle"
	success_url = reverse_lazy("whoisdb:dashboard")

	def get_queryset(self):
		return self.model.objects.filter(mnt_by__in=self.request.user.maintainer_set.all())


# InetNum
class InetNumCreate(LoginRequiredMixin, CreateView):
	template_name = "whoisdb/obj_create.html"
	form_class = InetNumForm

	def get_form_kwargs(self, *args, **kwargs):
		kwargs = super(InetNumCreate, self).get_form_kwargs(*args, **kwargs)
		kwargs["user"] = self.request.user
		kwargs["initial"] = {
			"handle": "AUTO",
		}

		return kwargs


class InetNumDetail(DetailView):
	model = InetNum
	slug_field = "handle"
	slug_url_kwarg = "handle"
	context_object_name = "inetnum"


class InetNumEdit(LoginRequiredMixin, UpdateView):
	template_name = "whoisdb/obj_edit.html"
	model = InetNum
	form_class = InetNumForm
	slug_field = "handle"
	slug_url_kwarg = "handle"

	def get_form_kwargs(self, *args, **kwargs):
		kwargs = super(InetNumEdit, self).get_form_kwargs(*args, **kwargs)
		kwargs["user"] = self.request.user

		mnts = self.request.user.maintainer_set.all()
		if not any(mnt in self.object.mnt_by.all() for mnt in mnts):
			# we are in mnt_lower
			kwargs["lower"] = True

		kwargs["initial"] = {'prefix': str(self.object.getNetwork())}

		return kwargs

	def get_queryset(self):
		# FIXME: we need all maintainers to be available. autofill own maintainers
		mnts = self.request.user.maintainer_set.all()
		return self.model.objects.filter(Q(mnt_by__in=mnts) | Q(mnt_lower__in=mnts)).distinct()


class InetNumDelete(LoginRequiredMixin, DeleteCheckView):
	template_name = "whoisdb/obj_delete.html"
	model = InetNum
	slug_field = "handle"
	slug_url_kwarg = "handle"
	success_url = reverse_lazy("whoisdb:dashboard")

	def get_queryset(self):
		mnts = self.request.user.maintainer_set.all()
		return self.model.objects.filter(Q(mnt_by__in=mnts) | Q(mnt_lower__in=mnts))