from django.shortcuts import render, redirect
from .models import Topic, Post, User
from django.contrib.auth.forms import UserCreationForm
from django.contrib.auth.models import BaseUserManager
from django.contrib.auth import get_user_model
from django.contrib.auth import authenticate, login, logout
from .forms import CustomUserCreationForm
from django.contrib.sites.shortcuts import get_current_site
from django.template.loader import  render_to_string
from django.utils.http import urlsafe_base64_decode, urlsafe_base64_encode
from django.utils.encoding import force_bytes, force_str, DjangoUnicodeDecodeError
from .utils import generate_token
from django.core.mail import EmailMessage
from django.conf import settings

# Create your views here.


User = get_user_model()

def send_activation_email(user, request):
    current_site = get_current_site(request)
    email_subject = "Activation Email"
    context = {"user": user,
                "domain": current_site,
                'uid': urlsafe_base64_encode(force_bytes(user.pk)),
                'token': generate_token.make_token(user)
                }
    email_body = render_to_string('email/activate.html',context)

    email = EmailMessage(subject=email_subject, body=email_body, from_email=settings.EMAIL_FROM_USER, to=[user.email])

    email.send()



def home(request):
    rules_posts = Post.objects.filter(front_sticky='RU')
    community_topics = Topic.objects.filter(front_sticky='CO')
    darkRP_topics = Topic.objects.filter(front_sticky="DR")
    millitaryRP_topics = Topic.objects.filter(front_sticky='MR')
    prisonRP_topics = Topic.objects.filter(front_sticky='PR')

    context = {"rules_posts": rules_posts, "community_topics": community_topics, "darkRP_topics": darkRP_topics,
     "millitaryRP_topics": millitaryRP_topics, "prisonRP_topics": prisonRP_topics}

    return render(request, 'base/home.html', context)

def post(request, pk):
    post = Post.objects.get(id=pk)

    context = {"post": post}

    return render(request, 'base/post.html', context)

def browse(request):

    t = request.GET.get('t')

    if t == None:
        return redirect('home')

    topics = Topic.objects.filter(parrent_topic=t)
    posts = Post.objects.filter(topic=t)

    context = {"topics": topics, "posts": posts}

    return render(request, 'base/browse.html', context)

def register_user(request):
    page = "register"
    form = CustomUserCreationForm(request.POST)
    if request.method == "POST":
        if form.is_valid():
            if form.is_valid():
                user = form.save()
                login(request, user)
                send_activation_email(user, request)
            return redirect('home')


    context = {"form": form, "page": page}

    return render(request, 'base/register_login.html', context)

def login_user(request):
    page = "login"

    if request.user.is_authenticated:
        return redirect('home')

    if request.method == "POST":
        email = BaseUserManager.normalize_email(request.POST.get('email'))
        password = request.POST.get('password')
        user = authenticate(request, email=email, password=password)

        if user:
            login(request, user)

    context = {"page": page}

    return render(request, 'base/register_login.html', context)

def logout_user(request):
    logout(request)
    return redirect('home')

def activate_user(request, uidb64, token):
    try:
        uid = force_str(urlsafe_base64_decode(uidb64))

        user = User.objects.get(pk=uid)

    except Exception as e:
        user=None

    if user and generate_token.check_token(user, token):
        user.is_verified=True
        user.save()