from django import newforms as forms
from users.models import User
import hashlib

class UserRegistration(forms.ModelForm):
	email	= forms.EmailField()
	passwd	= forms.CharField(min_length = 6, widget = forms.PasswordInput)
	confirm_passwd	= forms.CharField(widget = forms.PasswordInput)

	class Meta:
		model = User
		fields = ('email', 'passwd')

	def passwd(self):
		passwd = self.cleaned_data.get('passwd', None)

		if not passwd or len(passwd) < 6:
			raise forms.ValidationError('Your password must be at least 6 characters long.')

		passwd = hashlib.sha1(passwd).hexdigest()

		return passwd


	def clean_confirm_passwd(self):
		"""Make sure confirmed passwd == passwd"""
		confirm_passwd = hashlib.sha1(self.cleaned_data.get('confirm_passwd', None)).hexdigest()

		if confirm_passwd == self.cleaned_data.get('passwd', ''):

			return confirm_passwd

		raise forms.ValidationError('Your passwords do not match.')

	def clean_email(self):
		"""Make sure an e-mail address is unique"""

		email = self.cleaned_data['email']

		try:
			User.objects.get(email = email)

		except (User.DoesNotExist):
			return email

		else:
			raise forms.ValidationError('This email address is already in use.')