from django.shortcuts import render, redirect
from django.urls import reverse
from accounts.forms import *
import json
from django.core.exceptions import ValidationError
from django.core.validators import validate_email
from django.contrib.auth.hashers import make_password
from django.contrib.auth import logout,login,authenticate
from django.http import HttpResponseRedirect, HttpResponse, JsonResponse
from django.conf import settings
from custom_user.models import User


def create_session(request, username):
    print("logging in")
    print(username)
    user=User.objects.get(email=username)
    login(request, user)
    return HttpResponseRedirect(reverse('index'))

def logout_view(request):
    logout(request)
    return redirect(reverse('accounts:sign_in'))

def sign_in(request):
    if request.method == 'POST':
        form = LoginForm(request, data=request.POST)
        context={'form':form, 'invalid': True}
        if form.is_valid():
            username=form.cleaned_data.get('username')
            password=form.cleaned_data.get('password') 
            user=authenticate(username=username,password=password)
            if user:
                return create_session(request,user.email)
        else: 
            print(f"form is invalid, {form.errors}")
    return render(request, 'sign-in.html', {'form': LoginForm})

def sign_up(request):
    if request.user.is_authenticated:
        return redirect(reverse('index'))
    return render(request, 'sign-up.html', {'form': LoginForm})

def user_sign_up(request):
    if request.method == 'POST':
        data = json.loads(request.POST.get('data', ''))
        try:
            validate_email(data['email'])
        except ValidationError as e:
            print("bad email, details:", e)
            message = 'Email Validation error'
            messageTitle = 'Error!'
            messageStatus = 'text-bg-danger'
            response = JsonResponse({'messageTitle':messageTitle, 'message': message, 'messageStatus':messageStatus})
            return response
        password = make_password(data['password'])
        
        user = User.objects.create(email = data['email'], password=password)
        login(request, user)
        return JsonResponse({'no_errors':True})

    else:
        return render(request, 'sign-up.html', {'form': LoginForm})