from django.shortcuts import render, redirect,HttpResponse
from django.contrib.auth import login, logout, authenticate
from django.contrib.auth.tokens import default_token_generator
from django.utils.http import urlsafe_base64_decode
from django.contrib.auth.decorators import login_required
from django.contrib import messages
from .models import User
from .forms import UserRegistrationForm, UserLoginForm
import logging


logger = logging.getLogger('main')
def home(request):
    return render(request,"main/home.html") 


def register(request):
    if request.method == 'POST':
        form = UserRegistrationForm(request.POST)
        if form.is_valid():
            user = form.save(commit=False)
            user.set_password(form.cleaned_data['password'])
            user.save()

            try:
                user.send_verification_email()
                messages.success(request, 'Registration successful! Please check your email to activate your account.')
            except Exception as e:
                logger.error(f"Error sending verification email: {e}")
                messages.error(request, 'Error sending verification email. Please try again later.')

            return redirect('login')
    else:
        form = UserRegistrationForm()
    return render(request, 'main/register.html', {'form': form})

def activate_account(request, uidb64, token):
    try:
        uid = urlsafe_base64_decode(uidb64).decode()
        user = User.objects.get(pk=uid)
    except (TypeError, ValueError, OverflowError, User.DoesNotExist):
        user = None

    if user is not None and default_token_generator.check_token(user, token):
        user.is_active = True
        user.save()
        messages.success(request, 'Your account has been activated. You can now log in.')
        return redirect('login')
    else:
        messages.error(request, 'Invalid activation link.')
        return redirect('register')

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

    if request.method == 'POST':
        email = request.POST['email']
        password = request.POST['password']
        user = authenticate(request, email = email, password = password)
        if user is not None:
            form = login(request, user)
            messages.success(request, f' welcome {user} !!')
            return redirect('home')
        else:
            messages.info(request, f'account done not exit plz sign in')

    messages.info(request, f'You are Already Logged in as {request.user}')
    return render(request, 'main/login.html', {'title':'log in'})
    

@login_required
def user_logout(request):
    logout(request)
    messages.success(request, 'You have been logged out.')
    return redirect('login')

# def verify_email(request, uidb64, token):
#     # This view is redundant if it does the same as activate_account
#     # Consider removing or assigning a different purpose
#     pass