from django.contrib.auth import authenticate, login
from django.http import HttpResponseRedirect, QueryDict
from django.views.generic import TemplateView
from django.conf import settings
from django.contrib import messages
from .services import LoginService
import urllib
import json



class Login(TemplateView):
    
    def dispatch(self, request, *args, **kwargs):
        if request.user.is_authenticated:
            redirect_to = LoginService.get_user_redirect_url(request)
            return HttpResponseRedirect(redirect_to)
        return super(Login, self).dispatch(request, *args, **kwargs)


    def do_login(self, context, email, password, request, result):
        if result['success']:
            return self.handle_recaptcha_success(context, email, password, request)
        else:
            messages.error(request, 'Invalid reCAPTCHA. Please try again.')
            return self.render_to_response(context=context)

    def handle_recaptcha_success(self, context, email, password, request):
        user = authenticate(email=email, password=password)
        if user is not None:
            redirect_to = LoginService.get_redirect_login_sucess(request, user)
            return HttpResponseRedirect(redirect_to)
        else:
            context["error_message"] = "Email atau Password anda salah."
            return self.render_to_response(context=context)

    def get_recaptcha_result(self, recaptcha_response):
        url = 'https://www.google.com/recaptcha/api/siteverify'
        values = {
            'secret': settings.GOOGLE_RECAPTCHA_SECRET_KEY,
            'response': recaptcha_response
        }
        data = urllib.parse.urlencode(values).encode()
        req = urllib.request.Request(url, data=data)
        response = urllib.request.urlopen(req)
        result = json.loads(response.read().decode())
        return result

    def get_template_names(self):
        if self.request.path == "/login_admin/":
            template_name = "login_admin.html"
        else:
            template_name = "login.html"
        return template_name

    def get_context_data(self, *args, **kwargs):
        context = super().get_context_data(**kwargs)
        return context

    def get(self, request, *args, **kwargs):
        context = self.get_context_data(**kwargs)
        context['captcha_site_key'] = settings.GOOGLE_RECAPTCHA_SITE_KEY
        return self.render_to_response(context=context)

    def post(self, request, *args, **kwargs):
        email = request.POST.get("email", None)
        password = request.POST.get("pass", None)
        context = self.get_context_data(*args, **kwargs)

        if email is None or password is None:
            context = self.get_context_data(*args, **kwargs)
            context["error_message"] = "Email atau Password anda kosong."
            return self.render_to_response(context=context)
        else: 
            recaptcha_response = request.POST.get('g-recaptcha-response')
            result = self.get_recaptcha_result(recaptcha_response)

            return self.do_login(context, email, password, request, result)

from app.models import NotifikasiKontributor
def kontributor_notif_context(request):
    if request.user.is_authenticated and request.user.is_contributor:
        notifs = NotifikasiKontributor.objects.filter(user=request.user)
        return {
            'kontributor_notif':notifs
        }
    else:
        return {}