from django import forms

class LoginForm(forms.Form):
    username = forms.CharField(required=True,)
    password = forms.CharField(required=True, min_length=5)

from django.views.generic.base import View
# Create your views here.

from .models import UserProfile
from .forms import LoginForm


class CustomBackend(ModelBackend):
    def authenticate(self, username=None, password=None, **kwargs):
        try:
            user = UserProfile.objects.get(Q(username=username)|Q(email=username))
            if user.check_password(password):
                return user
        except Exception as e:
            return None


class LoginView(View):
    def get(self, request):
        return render(request, "login.html", {})

    def post(self, request):
        login_form = LoginForm(request.POST)
        if login_form.is_valid():
            user_name = request.POST.get("username","")
            pass_word = request.POST.get("password","")
            user = authenticate(username=user_name, password=pass_word)
            if user is not None:
                login(request,user)
                return render(request,"index.html")
            else:
                return render(request, "login.html", {"msg": "username or password is uncorrect", })

        else:
            return render(request,"login.html",{"login_form":login_form.errors})