import calendar
from django import forms
from django.utils.translation import gettext
from django.utils import timezone
from django_select2.forms import Select2Widget
from notes.forms import UserNoteForm, SimpleNoteForm
from notes.models import Note, Sujet, GENRE_CHOICES
from .models import Maraude, Rencontre 
from .notes import Observation, Appel, Signalement


MONTHS = [
    (num, gettext(calendar.month_name[num])) for num in range(1, 13)
]


def current_year_range():
    """ Returns a range from year -1 to year + 2 """
    year = timezone.now().date().year
    return year - 1, year, year + 1, year + 2


class MaraudeHiddenDateForm(forms.ModelForm):
    class Meta:
        model = Maraude
        fields = ['date', 'heure_debut', 'referent', 'binome']
        widgets = {'date': forms.HiddenInput()}


class RencontreForm(forms.ModelForm):
    class Meta:
        model = Rencontre
        fields = ['lieu', 'heure_debut', 'duree']
        widgets = {
            'lieu': Select2Widget(),
        }


ObservationInlineFormSet = forms.inlineformset_factory(
    Rencontre, Observation,
    form=SimpleNoteForm,
    extra=1,
)

RencontreInlineFormSet = forms.inlineformset_factory(
    Maraude, Rencontre,
    form=RencontreForm,
    extra=0,
)

ObservationInlineFormSetNoExtra = forms.inlineformset_factory(
    Rencontre, Observation,
    form=SimpleNoteForm,
    extra=0
)


class MonthSelectForm(forms.Form):

    month = forms.ChoiceField(label="Mois",
                              choices=MONTHS,
                              )
    year = forms.ChoiceField(label="Année",
                             choices=[(y, y) for y in current_year_range()],
                             )

    def __init__(self, *args, month=None, year=None, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields['month'].initial = month
        self.fields['year'].initial = year


class NoteForm(UserNoteForm):
    class Meta(UserNoteForm.Meta):
        model = Note
        fields = ['sujet', 'text']


class AppelForm(UserNoteForm):
    class Meta(UserNoteForm.Meta):
        model = Appel
        fields = ['sujet', 'text', 'entrant', 'created_date', 'created_time']


class SignalementForm(UserNoteForm):
    nom = forms.CharField(max_length=64, required=False)
    prenom = forms.CharField(max_length=64, required=False)
    age = forms.IntegerField(required=False)
    genre = forms.ChoiceField(choices=GENRE_CHOICES)

    class Meta(UserNoteForm.Meta):
        model = Signalement
        fields = ['text', 'source', 'created_date', 'created_time']

    def clean(self):
        super().clean()
        if not self.cleaned_data['nom'] and not self.cleaned_data['prenom']:
            self.add_error('nom', '')
            self.add_error('prenom', '')
            raise forms.ValidationError("Entrez au moins un nom ou prénom")

    def save(self, commit=True):
        sujet = Sujet.objects.create(
                        nom=self.cleaned_data['nom'],
                        prenom=self.cleaned_data['prenom'],
                        genre=self.cleaned_data['genre'],
                        age=self.cleaned_data['age']
                    )
        instance = super().save(commit=False)
        instance.sujet = sujet
        if commit:
            instance.save()
        return instance


class SendMailForm(forms.Form):

    subject = forms.CharField(label="Objet")
    message = forms.CharField(widget=forms.Textarea, label="Contenu")