from django.shortcuts import render
from django.contrib.auth.mixins import LoginRequiredMixin
from django.views.generic import CreateView, ListView, UpdateView, DetailView, DeleteView, View
from .models  import Areas
from django.contrib import messages
from .forms import AreaAddAreaForm
from django.contrib.auth.models import User
from django.http import HttpResponse, JsonResponse
import json


class AreasManagement(LoginRequiredMixin, ListView):
	model = Areas
	# Adding active_link
	# Loading only user same agency
	# Change context and return for template-data
	def get_context_data(self, **kwargs):
		context = super().get_context_data(**kwargs)
	#	# Get all Users of the Same Agency as logged user
		areas_of_agency = Areas.objects.filter(agency__pk=self.request.user.profile.agency.pk).order_by('areaorder')

		context.update({'active_link' : 'areasmanagement', 'areas_of_agency':areas_of_agency})
		return context

class AreasAddArea(LoginRequiredMixin, CreateView):
	model = Areas
	success_url = '/areas'
	#fields = ['name', 'color', 'desc', 'usersfield']
	form_class = AreaAddAreaForm

	#def get(self,request,*args, **kwargs):
	#	# User ist der hier Aufgerufene, bzw. das Profil!				
	#	return render (request, self.template_name, {'form':self.form_class(self.request.user), 'active_link': 'areasmanagement'})


	# Adding active_link
	def get_context_data(self, **kwargs):
		context = super().get_context_data(**kwargs)
		context.update({'active_link' : 'areasmanagement'})
		return context

	def form_valid(self, form):	
		# Send message to the site
		messages.success(self.request, f'Bereich angelegt!')
		# SAVE OBJECTS TO SIGNALE!
		form.instance.agency = self.request.user.profile.agency
		form.instance.created_area_by = self.request.user
		return super().form_valid(form)


class AreaDeleteView(LoginRequiredMixin, DeleteView):
	model = Areas
	success_url = '/areas'
	template_name = 'areas/area_confirm_delete.html'	

	def delete(self, request, *args, **kwargs):		
		area = Areas.objects.get(pk=kwargs['pk'])
		response = super(AreaDeleteView, self).delete(request, *args, **kwargs)
		name = area.name
		messages.success(request, f'Bereich ' +name+ ' wurde gelöscht!')
		return response

	def get_context_data(self, **kwargs):
		context = super(AreaDeleteView, self).get_context_data(**kwargs)
		context['active_link'] = 'areasmanagement'
		return context

# Hier andere Nutzer ändern, wenn man Usersmanagement darf!
class AreaUpdateView(LoginRequiredMixin, UpdateView):
	model = Areas	
	template_name = 'areas/areas_update.html'
	success_url = '/areas'
	form_class = AreaAddAreaForm
		
	def form_valid(self, form):	
		# Send message to the site		
		messages.success(self.request, f'Bereich aktualisiert!')
		print(form)
		return super().form_valid(form)

	# Form wird geladen; Checkboxen werden vorbereitet und hier rausgerendert.
	#def get(self,request,*args, **kwargs):
	#	# User ist der hier Aufgerufene, bzw. das Profil!
	#	loggeduser = request.user
	#	
	#	return render (request, self.template_name, {'form':self.form_class(loggeduser), 'active_link': 'usersmanagement'})


	def get_context_data(self, **kwargs):
		context = super(AreaUpdateView, self).get_context_data(**kwargs)		
		area = Areas.objects.get(pk=context['object'].pk)
		# User still in Area		
		context['added_users'] = area.usersfield.all()
		# Get all Users from same Agency which are NOT in context_added_users
		possible_users = User.objects.filter(profile__agency__pk=self.request.user.profile.agency.pk).exclude(pk__in=context['added_users'])
		context['possible_users'] = possible_users				
		# Active-Link for Base-Design
		context['active_link'] = 'areasmanagement'
		# Area ID
		context['objectid'] = context['object'].pk
		return context


def area_addareas_ajax(request):
	if request.method == 'GET':

		# ADD USER TO MANY-TO-MANY USERSFIELD
		if request.GET['action'] == 'adduser':
			area = Areas.objects.get(pk=request.GET['objectid'])
			area.usersfield.add(User.objects.get(pk=request.GET['userid']))
			area.save()
		# REMOVE USER TO MANY-TO-MANY USERSFIELD
		elif request.GET['action'] == 'remuser':
			area = Areas.objects.get(pk=request.GET['objectid'])
			area.usersfield.remove(User.objects.get(pk=request.GET['userid']))
			area.save()
		userid = request.GET['userid']
		workinguser = User.objects.get(pk=userid)
		username_clean = workinguser.first_name + " " + workinguser.last_name
		
		# Getting Remaining-Users
		area = Areas.objects.get(pk=request.GET['objectid'])
		added_users = area.usersfield.all()
		possible_users = User.objects.filter(profile__agency__pk=request.user.profile.agency.pk).exclude(pk__in=added_users)
		possible_users_js = list(possible_users.values())
		# Cleaned out, that only data is neede will send to the side (first/last-name and id)
		final_possible_users = {}
		for ele in possible_users_js:
			final_possible_users.update({'first_name':ele['first_name'],'last_name':ele['last_name'],'id':ele['id']})
		# Counter for remaining users to show/hide "Keine Mitarbeiter"-Div
		remaining_users_counter = len(added_users)
		return JsonResponse({'userid' : userid, 'username_clean' : username_clean, 'remaining_users':possible_users_js, 'remaining_users_counter' : final_possible_users})
	else:
		return HttpResponse("Request method is not a GET")

'''

	Update the Area-Order by drag and drop. Save per ID and order in table, example:
	ID    ORDER
	0 --> 0
	4 --> 1
	2 --> 2
	5 --> 3

	Triggered by ajax in areas_management.html
	Save all areas after drag n drop elements in table

'''
def area_neworder(request):
	if request.method == 'GET':
		if request.GET['action'] == 'newareaorder':
			neworderdata = json.loads(request.GET['finalod'])
			for ele in neworderdata:
				area = Areas.objects.get(pk=ele['id'])
				area.areaorder = ele['neworder']
				area.save()
		return HttpResponse("UPDATED")
	else:
		return HttpResponse("Request method is not a GET")