from crispy_forms.helper import FormHelper
from crispy_forms.layout import HTML, Fieldset, Layout, Submit
from django import forms
from django.db import transaction
from django.forms import ModelForm
from django.utils.translation import ugettext_lazy as _
from floppyforms.widgets import ClearableFileInput

import crispy_layout_mixin
import sapl
from crispy_layout_mixin import form_actions

from .models import Filiacao, Legislatura, Mandato, Parlamentar


class ImageThumbnailFileInput(ClearableFileInput):
    template_name = 'floppyforms/image_thumbnail.html'


class ParlamentarForm(ModelForm):

    class Meta:
        model = Parlamentar
        exclude = []
        widgets = {'fotografia': sapl.utils.ImageThumbnailFileInput,
                   'biografia': forms.Textarea(
                       attrs={'id': 'texto-rico'})}


class ParlamentarCreateForm(ParlamentarForm):

    legislatura = forms.ModelChoiceField(
        label=_('Legislatura'),
        required=True,
        queryset=Legislatura.objects.all().order_by('-data_inicio'),
        empty_label='----------',
    )

    data_expedicao_diploma = forms.DateField(
        label=_('Expedição do Diploma'),
        required=True,
    )

    @transaction.atomic
    def save(self, commit=True):
        parlamentar = super(ParlamentarCreateForm, self).save(commit)
        legislatura = self.cleaned_data['legislatura']
        Mandato.objects.create(
            parlamentar=parlamentar,
            legislatura=legislatura,
            data_fim_mandato=legislatura.data_fim,
            data_expedicao_diploma=self.cleaned_data['data_expedicao_diploma'])
        return parlamentar


class FiliacaoForm(ModelForm):

    class Meta:
        model = Filiacao
        fields = ['partido',
                  'data',
                  'data_desfiliacao']

    def __init__(self, *args, **kwargs):

        row1 = crispy_layout_mixin.to_row(
            [('partido', 4),
             ('data', 4),
             ('data_desfiliacao', 4)])

        self.helper = FormHelper()
        self.helper.layout = Layout(
            Fieldset(_('Adicionar Filiação'), row1,
                     form_actions())

        )
        super(FiliacaoForm, self).__init__(
            *args, **kwargs)


class FiliacaoEditForm(FiliacaoForm):

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

        self.helper.layout[0][-1:] = form_actions(more=[
            HTML(' '),
            Submit('excluir', 'Excluir',
                   css_class='btn btn-primary')])