from django import forms
from django.conf import settings
from .models import PawUser
from django.utils.translation import gettext_lazy as _

class UserChangeForm(forms.Form):
    email = forms.EmailField(required=True, widget=forms.EmailInput(
        attrs={'class': 'input  w-full'}))
    profile_picture = forms.ImageField(required=False, widget=forms.FileInput(
        attrs={'class': 'file-input  w-full'}))
    language = forms.ChoiceField(choices=settings.LANGUAGES, widget=forms.Select(
        attrs={'class': 'select  w-full'}))
    telegram_username = forms.CharField(required=False, widget=forms.TextInput(attrs={
        'class': 'grow', 'placeholder': 'Telegram Username'}))
    use_darkmode = forms.BooleanField(
        required=False, widget=forms.CheckboxInput(attrs={'class': 'toggle toggle-secondary'}))
    receive_email_notifications = forms.BooleanField(
        required=False, widget=forms.CheckboxInput(attrs={'class': 'toggle toggle-secondary'}))

    class Meta:
        model = PawUser
        fields = ('email', 'profile_picture',
                  'language', 'telegram_username', 'use_darkmode', 'receive_email_notifications')

USERNAME_REGEX_FIELD = forms.RegexField(
    required=True,
    label=_('Username'),
    max_length=50,
    regex=r'^[a-zA-Z0-9-_@]+$',
    error_messages={
        'required': _('Please enter a username'),
        'invalid': _('Username can only have alphanumeric characters and underscores and dashes (a-z, 0-9, _, -, @)')
    },
    widget=forms.TextInput(
        attrs={'placeholder': _('Username'), 'class': 'input  w-full'}),
)

class RegisterForm(forms.Form):
    username = USERNAME_REGEX_FIELD
    email = forms.EmailField(required=True, widget=forms.EmailInput(
        attrs={'class': 'input  w-full'}))
    password = forms.CharField(required=True, widget=forms.PasswordInput(
        attrs={'class': 'input  w-full'}))
    password_confirm = forms.CharField(required=True, widget=forms.PasswordInput(
        attrs={'class': 'input  w-full'}))

    class Meta:
        model = PawUser
        fields = ('username', 'email', 'password')

    def clean(self):
        cleaned_data = super(RegisterForm, self).clean()
        password = cleaned_data.get("password")
        password_confirm = cleaned_data.get("password_confirm")

        if password != password_confirm:
            raise forms.ValidationError(
                _("Password and Confirm Password do not match.")
            )
        if len(password) < 10:
            raise forms.ValidationError(
                _("Password must be at least 10 characters long.")
            )

        if PawUser.objects.filter(username=cleaned_data.get("username")).exists():
            raise forms.ValidationError(
                _("An account with this username already exists.")
            )
        if PawUser.objects.filter(email=cleaned_data.get("email")).exists():
            raise forms.ValidationError(
                _("An account with this email already exists.")
            )
        return cleaned_data


class AccountFinishForm(forms.Form):
    username = USERNAME_REGEX_FIELD

    class Meta:
        model = PawUser
        fields = ('username')

    def clean(self):
        cleaned_data = super(AccountFinishForm, self).clean()

        if PawUser.objects.filter(username=cleaned_data.get("username")).exists():
            raise forms.ValidationError(
                _("An account with this username already exists")
            )

        return cleaned_data