from django import forms
from django.conf import settings
from django.utils.translation import ugettext_lazy as _
from django.utils import timezone


if "notification" in settings.INSTALLED_APPS and getattr(settings, 'DJANGO_MESSAGES_NOTIFY', True):
    from notification import models as notification
else:
    notification = None

from django_messages.models import Message
from accounts_app.models import UserProfile


class ComposeForm(forms.Form):
    """
    A simple default form for private messages.
    """
    recipient = forms.ModelMultipleChoiceField(
        label=_(u"Recipient"),
        widget=forms.SelectMultiple(attrs={'class': 'form-control'}),
        queryset=UserProfile.objects.filter(is_admin=True),
    )
    #recipient = CommaSeparatedUserField(label=_(u"Recipient"))
    subject = forms.CharField(
        label=_(u"Subject"),
        max_length=140,
        widget=forms.TextInput(attrs={'class': 'form-control'})
    )
    body = forms.CharField(label=_(u"Body"),
        widget=forms.Textarea(attrs={'rows': '12', 'cols':'55', 'class': 'form-control'}))


    def __init__(self, *args, **kwargs):
        recipient_filter = kwargs.pop('recipient_filter', None)
        super(ComposeForm, self).__init__(*args, **kwargs)
        if recipient_filter is not None:
            self.fields['recipient']._recipient_filter = recipient_filter


    def save(self, sender, parent_msg=None):
        recipients = self.cleaned_data['recipient']
        subject = self.cleaned_data['subject']
        body = self.cleaned_data['body']
        message_list = []
        for r in recipients:
            msg = Message(
                sender = sender,
                recipient = r,
                subject = subject,
                body = body,
            )
            if parent_msg is not None:
                msg.parent_msg = parent_msg
                parent_msg.replied_at = timezone.now()
                parent_msg.save()
            msg.save()
            message_list.append(msg)
            if notification:
                if parent_msg is not None:
                    notification.send([sender], "messages_replied", {'message': msg,})
                    notification.send([r], "messages_reply_received", {'message': msg,})
                else:
                    notification.send([sender], "messages_sent", {'message': msg,})
                    notification.send([r], "messages_received", {'message': msg,})
        return message_list