import simplejson
from captcha.fields import ReCaptchaField
from django import forms
from django.conf import settings
from django.contrib.auth.forms import (AuthenticationForm, PasswordResetForm,
                                       UserChangeForm, UserCreationForm)
from django.core import serializers
from django.core.mail import EmailMessage, EmailMultiAlternatives
from django.utils import formats
from registration.forms import RegistrationFormUniqueEmail
from RIGS import models


# Registration
class ProfileRegistrationFormUniqueEmail(RegistrationFormUniqueEmail):
    captcha = ReCaptchaField()

    class Meta:
        model = models.Profile
        fields = ('username', 'email', 'first_name', 'last_name', 'initials')

    def clean_initials(self):
        """
        Validate that the supplied initials are unique.
        """
        if models.Profile.objects.filter(initials__iexact=self.cleaned_data['initials']):
            raise forms.ValidationError("These initials are already in use. Please supply different initials.")
        return self.cleaned_data['initials']


class CheckApprovedForm(AuthenticationForm):
    def confirm_login_allowed(self, user):
        if user.is_approved or user.is_superuser:
            return AuthenticationForm.confirm_login_allowed(self, user)
        else:
            raise forms.ValidationError(
                "Your account hasn't been approved by an administrator yet. Please check back in a few minutes!")


# Embedded Login form - remove the autofocus
class EmbeddedAuthenticationForm(CheckApprovedForm):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields['username'].widget.attrs.pop('autofocus', None)


class PasswordReset(PasswordResetForm):
    captcha = ReCaptchaField(label='Captcha')


class ProfileCreationForm(UserCreationForm):
    class Meta(UserCreationForm.Meta):
        model = models.Profile


class ProfileChangeForm(UserChangeForm):
    class Meta(UserChangeForm.Meta):
        model = models.Profile