from webtools import settings
from django import forms
from django.forms import ModelForm, CharField
from .models import Paste, Language, EXPIRE_CHOICES


class PasteForm(ModelForm):
    """Paste model form."""
    content = CharField(max_length=settings.PASTE['max_characters'],
                        strip=False,
                        widget=forms.Textarea)

    class Meta:
        model = Paste
        fields = ['language', 'title', 'password', 'content', 'lifetime',
                  'lifecount', 'private']

    def save(self, commit=True):
        """Overwrites save method."""
        paste = super(PasteForm, self).save(commit=False)
        paste.compute_size()
        if not self.cleaned_data['title']:
            paste.title = 'no title'
        if self.cleaned_data['password']:
            paste.set_password(self.cleaned_data['password'])
        if commit:
            paste.save()
        return paste