# -*- coding: utf-8 -*-
import logging
from django import forms
from django.contrib.auth import forms as auth_forms, password_validation
from django.utils.translation import gettext, gettext_lazy as _

logger = logging.getLogger(__name__)


class LoginForm(auth_forms.AuthenticationForm):
    username = auth_forms.UsernameField(
        label=_('E-Mail-Adresse'),
        widget=forms.TextInput(attrs={'autofocus': True}),
    )

    error_messages = {
        'invalid_login': _('Benutzername oder Passwort falsch.'),
        'inactive': _('This account is inactive.'),
    }

    def clean_username(self):
        username = self.cleaned_data.get('username')
        return username.lower()


class SetPasswordForm(forms.Form):
    new_password = forms.CharField(label=_('Neues Passwort'),
                                   widget=forms.PasswordInput)
    new_password_repeat = forms.CharField(label=_('Neues Passwort wiederholen'),
                                          widget=forms.PasswordInput)
    send_password_mail = forms.BooleanField(required=False,
                                            initial=False,
                                            label=_('Neues Passwort per E-Mail zusenden'),
                                            )

    def __init__(self, user, *args, **kwargs):
        self.user = user
        super().__init__(*args, **kwargs)

    def clean_new_password(self):
        password = self.cleaned_data.get('new_password')
        password_validation.validate_password(password, self.user)
        return password

    def clean_new_password_repeat(self):
        password1 = self.cleaned_data.get('new_password')
        password2 = self.cleaned_data.get('new_password_repeat')
        if password1 and password2:
            if password1 != password2:
                raise forms.ValidationError(
                    gettext('Passwörter stimmen nicht überein'),
                    code='password_mismatch',
                )
        return password2

    def save(self, commit=True):
        new_password = self.cleaned_data.get('new_password')
        self.user.set_password(new_password)
        if commit:
            self.user.save()
        return self.user


class CreateAndSendPasswordForm(forms.Form):
    username = auth_forms.UsernameField(
        label=_('E-Mail-Adresse'),
        widget=forms.TextInput(attrs={'autofocus': True}),
    )

    def clean_username(self):
        username = self.cleaned_data.get('username')
        return username.lower()